Rubber filtering equipment for producing high-temperature-resistant PU (Polyurethane) filtered rubber

Abstract

The utility model relates to rubber filtering equipment for producing high-temperature-resistant PU (Polyurethane) filter rubber, which comprises a support frame, a driving motor is arranged on the left side of the upper end of the support frame, a charging barrel is arranged at the right end of the driving motor, a spiral rotating rod is concentrically arranged in the charging barrel, an anti-blocking filtering structure is arranged at the right end of the charging barrel, and the anti-blocking filtering structure is arranged on the left side of the upper end of the support frame. The anti-blocking filtering structure comprises a movable shell, the inner surface of the movable shell is sleeved with a material barrel, a first groove is formed in the inner circumferential surface of the movable shell, and a first filtering disc is arranged in the first groove; an anti-blocking filtering structure is arranged, so that double filtering of colloid is achieved, and meanwhile, the functions of automatically cleaning filtering holes and preventing the colloid from being air-dried and blocked in the filtering holes are achieved after discharging is finished; and by arranging the spiral heating pipe, the interior of the charging barrel is uniformly heated, so that the colloid keeps good fluidity and can be conveyed to the first filter disc and the second filter disc along with the spiral rotating rod to be filtered, and the possibility of low-temperature curing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber filtering machines, in particular to a rubber filtering device for high-temperature resistant PU rubber filtering production. Background Art

[0002] A rubber filtering machine is a machine that uses the pushing and conveying action of a screw to remove impurities in rubber materials or recycled rubber. It mainly consists of a screw, a barrel, a rubber filtering head, and a transmission device, etc. A perforated plate and a filter screen are installed on the rubber filtering head. The perforated plate is used to support the filter screen and serves as a discharge port, which is a conical hole expanding along the flow direction of the rubber material. However, the air drying of the rubber mass at the position of the filter screen of the existing rubber filtering equipment is likely to cause the clogging of the filtering holes, and the fluidity of the rubber mass decreases under the low-temperature environment, which is likely to cause the adhesion of the rubber mass to the inner wall of the equipment. Therefore, we have designed a rubber filtering device for high-temperature resistant PU rubber filtering production.

[0003] A Chinese utility model patent with the patent number CN202223450144.6 discloses a rubber filtering machine for silicone production and processing, including a machine body bracket. A driving motor is fixedly installed on the upper right surface of the machine body bracket. The left surface of the driving motor is connected with a cylindrical bin. A filtering disc is correspondingly arranged on the left side of the cylindrical bin. A spiral blade rotating rod is installed inside the cylindrical bin corresponding to the output end of the driving motor. A processing box is correspondingly installed on the upper surface of the first feeding port; the rubber filtering machine for silicone production and processing provided by this utility model can directly transport cold rubber for processing through the rubber feeding port of the processing box. The four-way turntable at the output end of the second servo motor can drive the stirring plate to stir the cold rubber, and the heat conducting rod at the output end of the heater is used to heat the stirring plate, so that the cold rubber is heated while being stirred and processed, quickly meeting the processing requirements of the rubber filtering machine, effectively solving the problem that the cold rubber cannot be filtered during the working process of the existing rubber filtering machine for silicone production and processing. However, this utility model has the following problems: First, it does not have a heating treatment for the material transporting cylinder part. The material transporting cylinder is long, and the rubber mass inside is likely to reduce its fluidity in a low-temperature environment during the transmission and filtering process inside it. The poor fluidity of the rubber mass is likely to accumulate and adhere to the internal components. Secondly, it does not have a cleaning and anti-clogging design for the filtering structure part. The filtering structure is exposed outside and is likely to be air-dried and block the filtering holes. Summary of the Utility Model

[0004] The purpose of the present utility model is to address the deficiencies of the prior art. By setting an anti-clogging filtering structure and a spiral heating tube, it solves the technical problems that the filtering structure of the existing rubber filtering machine is exposed outside and is likely to be air-dried and block the filtering holes, and the long length of its material transporting cylinder leads to the reduction of the fluidity of the rubber mass in a low-temperature environment, which is likely to accumulate and adhere to the internal components.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A filter rubber equipment for the production of high-temperature resistant PU filter rubber, including a support frame. A driving motor is provided on the left side of the upper end of the support frame. A material cylinder is provided at the right end of the driving motor. A spiral rod is concentrically arranged inside the material cylinder. And an anti-blocking and filtering structure is provided at the right end of the material cylinder. The anti-blocking and filtering structure includes a movable outer shell. The inner surface of the movable outer shell sleeves the material cylinder. A first groove is provided on the inner circumferential surface of the movable outer shell. A first filter disc is provided in the groove of the first groove.

[0007] As a preference, a plurality of first filter holes are evenly distributed on the surface of the first filter disc. First cleaning columns are arranged between the first filter holes.

[0008] As a preference, a second groove is provided at the left position of the inner circumferential surface of the material cylinder. A second filter disc is provided in the groove of the second groove. A plurality of second filter holes are evenly distributed on the surface of the second filter disc. Second cleaning columns are arranged between the second filter holes.

[0009] As a preference, the second filter holes are matched with the first cleaning columns in terms of structure and size. The first filter holes are matched with the second cleaning columns in terms of structure and size.

[0010] As a preference, an outer ring is provided at the left position of the outer circumferential surface of the material cylinder. Four push-pull cylinders are evenly distributed on the inner surface of the right end of the outer ring. The left end of the piston rod of the push-pull cylinder is connected with a fixed groove, and the fixed groove is located at the right end of the movable outer shell.

[0011] As a preference, a spiral heating tube is provided on the inner diameter surface of the sandwich layer of the material cylinder. And a heat insulation plate is provided on the outer diameter surface of the sandwich layer of the material cylinder.

[0012] As a preference, the left end of the spiral rod is connected with the driving motor. A reinforcing member is provided in the middle of the outer surface of the material cylinder. And the right side position of the upper end of the material cylinder is connected with a rubber material processing box. A feed hopper is provided at the rear end of the rubber material processing box.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) In the utility model, by setting the anti-blocking and filtering structure, after the discharging is finished, the push-pull cylinder works and contracts, driving the movable outer shell to move to the right, so that the distance between the first filter disc and the second filter disc is shortened, and thus the first cleaning column is inserted into the second filter hole, and the second cleaning column is inserted into the first filter hole, achieving the effect of cleaning the filter holes and preventing the glue from drying and blocking in the filter holes.

[0015] (2) In the utility model, by setting the spiral heating tube, the inside of the material cylinder is evenly heated, so that the glue keeps good fluidity and can be transported to the first filter disc and the second filter disc along with the spiral rod for filtering, reducing the possibility of low-temperature curing.

[0016] (3) In the present utility model, by providing a first filter disc and a second filter disc, the colloid is filtered twice to improve the filtering effect.

[0017] In summary, the utility model has the advantages of simple structure, good filtering effect and prevention of colloid blockage, and is particularly suitable for the technical field of rubber filtering machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a rubber filtering device for high-temperature resistant PU rubber filtering production.

[0020] Figure 2 It is a sectional view of the left side of the barrel part.

[0021] Figure 3 It is a sectional structural diagram of the anti-blocking filtering structure part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings.

[0023] Embodiment 1

[0024] As Figures 1 to 3 shown, the present utility model provides a rubber filtering device for high-temperature resistant PU rubber filtering production, including a support frame 1, which increases the ground clearance of components such as the barrel 3 and the drive motor 2, improves the installation performance and provides stable support. The drive motor 2 is provided on the upper left side of the support frame 1. When the drive motor 2 works, it drives the spiral rod 4 to rotate. The right end of the drive motor 2 is provided with a barrel 3, where the colloid is transported and filtered. The spiral rod 4 is concentrically arranged inside the barrel 3 to play a role in spiral transportation of the colloid. And the right end of the barrel 3 is provided with an anti-blocking filtering structure 5, which plays a role in double filtering of the colloid and automatically cleaning the filtering holes and preventing the colloid from drying and blocking in the filtering holes at the end of discharging. The anti-blocking filtering structure 5 includes a movable housing 51, the inner surface of the movable housing 51 sleeved on the barrel 3, a first groove 52 is provided on the inner circumferential surface of the movable housing 51 to limit the position of the first filter disc 53, and the first filter disc 53 is provided in the groove of the first groove 52 to filter the colloid that has been preliminarily filtered by the second filter disc 55 again, thereby increasing the filtering effect and improving the quality of the colloid.

[0025] Further, as Figure 2 shown, the surface of the first filter plate 53 is evenly distributed with first filter holes 531, which play a filtering role. Between the first filter holes 531, there are first cleaning columns 532, which are convenient for pushing and cleaning the second filter holes 551.

[0026] Further, on the left side of the inner circumferential surface of the barrel 3, there is a second groove 54 for defining the position of the second filter plate 55. Inside the groove of the second groove 54, there is a second filter plate 55, which initially filters the glue conveyed by the spiral rod 4. The surface of the second filter plate 55 is evenly distributed with second filter holes 551. Between the second filter holes 551, there are second cleaning columns 552, which are convenient for pushing and cleaning the first filter holes 531.

[0027] Further, as Figure 2 shown, the second filter holes 551 and the first cleaning columns 532 are matched in structure and size, and the first filter holes 531 and the second cleaning columns 552 are matched in structure and size. When the distance between the first filter plate 53 and the second filter plate 55 is shortened, the first cleaning columns 532 are inserted into the second filter holes 551, and the second cleaning columns 552 are inserted into the first filter holes 531, so as to clean the filter holes and prevent the glue from drying and blocking in the filter holes.

[0028] Further, as Figure 3 shown, on the left side of the outer circumferential surface of the barrel 3, there is an outer ring 31. On the inner surface of the right end of the outer ring 31, four push-pull cylinders 32 are evenly distributed. The left end of the piston rod of the push-pull cylinder 32 is connected to a fixed groove 56, and the fixed groove 56 is located at the right end of the movable housing 51. After the discharging is completed, the push-pull cylinder 32 works and contracts, driving the movable housing 51 to move to the right, so that the distance between the first filter plate 53 and the second filter plate 55 is shortened, and then the first cleaning columns 532 and the second cleaning columns 552 play a cleaning role.

[0029] Further, on the inner diameter surface of the interlayer of the barrel 3, there is a spiral heating tube 33. Under the action of the heating device, the spiral heating tube 33 quickly heats up, evenly heating the glue in the barrel 3 to ensure that the glue remains fluid and reduces the possibility of glue adhesion and retention. And on the outer diameter surface of the interlayer of the barrel 3, there is a heat insulation plate 34 to block heat transfer and reduce heat loss, thereby reducing the possibility of high-temperature damage to the surface of the barrel 3 and increasing safety.

[0030] Further, as Figure 1As shown in the figure, the left end of the spiral rod 4 is connected to the driving motor 2. The driving motor 2 drives the spiral rod 4 to rotate, thus playing a role in spiral transportation. A reinforcing member 35 is provided in the middle of the outer surface of the barrel 3 to add support points to the barrel 3, balance the supporting force, and keep the upper end of the barrel 3 horizontal with the upper end of the support frame 1. And the right side position at the upper end of the barrel 3 is connected to the rubber material processing box 6. A feed hopper 7 is provided at the rear end of the rubber material processing box 6. Cold rubber enters the rubber material processing box 6 from the feed hopper 7, is heated and stirred inside it, and is extruded downward, so that the rubber enters the barrel 3.

[0031] Working process: First, cold rubber enters the rubber material processing box 6 from the feed hopper 7, is heated and stirred inside it, and is extruded downward, so that the rubber enters the barrel 3. Further, the spiral heating tube 33 is rapidly heated under the action of the heating device to uniformly heat the inside of the barrel 3. At the same time, the driving motor 2 drives the spiral rod 4 to rotate, transporting the rubber from the right side of the barrel to the left side, so that the rubber flows out successively through the second filter disc 55 and the first filter disc 53. Further, after the discharging is completed, the push-pull cylinder 32 works and contracts, driving the movable housing 51 to move to the right, so that the distance between the first filter disc 53 and the second filter disc 55 is shortened. Further, the first cleaning column 532 is inserted into the second filter hole 551, and the second cleaning column 552 is inserted into the first filter hole 531, achieving the function of cleaning the filter holes and preventing the rubber from drying and blocking in the filter holes.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front and back", "left and right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0033] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, and in other embodiments, the number of this element can be multiple. The term "one" cannot be understood as a limitation on the number.

[0034] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art under the technical hint of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A rubber filtering equipment for high temperature resistant PU rubber filtering production, characterized by: The invention comprises a support frame (1), wherein a driving motor (2) is provided on the left side of the upper end of the support frame (1), a barrel (3) is provided on the right end of the driving motor (2), a spiral rotating rod (4) is provided cocentrically inside the barrel (3), and an anti-blocking filtering structure (5) is provided on the right end of the barrel (3), wherein the anti-blocking filtering structure (5) comprises a movable outer shell (51), wherein the inner surface of the movable outer shell (51) is sleeved with the barrel (3), wherein a first groove (52) is provided on the inner circumferential surface of the movable outer shell (51), and a first filter disc (53) is provided in the groove of the first groove (52).

2. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 1 is characterized in that: The surface of the No. 1 filter disc (53) is evenly distributed with No. 1 filter holes (531), and a No. 1 cleaning column (532) is provided between the No. 1 filter holes (531).

3. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 1 is characterized in that: A second groove (54) is provided at the left side of the inner circumferential surface of the barrel (3), a second filter disc (55) is provided in the groove of the second groove (54), second filter holes (551) are evenly distributed on the surface of the second filter disc (55), and a second cleaning column (552) is provided between the second filter holes (551).

4. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 3 is characterized in that: The second filter hole (551) matches the structure size of the first cleaning column (532), and the first filter hole (531) matches the structure size of the second cleaning column (552).

5. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 1 is characterized in that: An outer ring (31) is provided on the left side of the outer circumferential surface of the barrel (3), and four push-pull cylinders (32) are evenly distributed on the inner surface of the right end of the outer ring (31). The left end of the piston rod of the push-pull cylinder (32) is connected to a fixing groove (56), and the fixing groove (56) is located at the right end of the movable shell (51).

6. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 1 is characterized in that: The inner diameter surface of the interlayer of the barrel (3) is provided with a spiral heating tube (33), and the outer diameter surface of the interlayer of the barrel (3) is provided with a heat insulation board (34).

7. The rubber filtering equipment for high temperature resistant PU rubber filtering production according to claim 1 is characterized in that: The left end of the spiral rotating rod (4) is connected to the driving motor (2), a reinforcing member (35) is provided in the middle of the outer surface of the barrel (3), and the right side of the upper end of the barrel (3) is connected to a rubber processing box (6), and a feed hopper (7) is provided at the rear end of the rubber processing box (6).

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