A chute-type release agent circulation system for rubber mixing process

Abstract

The present invention discloses a chute-type release agent circulation system for use in rubber mixing processes. The system includes a release agent tank for holding release agent for soaking, cooling, and coating rubber products with the release agent; a stirring and circulating device connected to the release agent tank for uniformly stirring the release agent precipitated in the release agent tank and circulating it back to the release agent tank; a cooling device for cooling the release agent in the release agent tank; and a displacement drive device for moving the release agent tank, stirring and circulating device, and cooling device. The release agent tank is located at the edge of the rubber extruder roller. This chute-type release agent circulation system solves the problem of uneven release agent concentration and easy precipitation. It eliminates the spray system and quenching water tank, improves release agent utilization, saves production costs, and solves the problems of water mist generated by the spray and quenching facilities corroding the casing of peripheral equipment and frequent water accumulation on the ground, posing safety risks.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tire mixing manufacturing, in particular to a chute type release agent circulation system used in a rubber mixing process. Background Art

[0002] In the rubber mixing process, after the rubber products are extruded by the rubber extruder, the rubber products have high temperature, large smoke and high viscosity. Therefore, a spray system, a quenching water tank, an isolation agent tank and other facilities are set up next to the extruder roller to cool the rubber sheets extruded by the extruder, isolate the smoke and dip the isolation agent. However, the overall structure of the spray system, quenching water tank and isolation agent tank and other facilities currently set up next to the extruder roller is relatively complex, and there are many problems: (1) For example, the isolation agent pool does not circulate, and the isolation agent precipitates from the water and accumulates at the bottom to form a hard (1) The release agent is not uniform in concentration, so that the release agent applied on the film does not dry out and sticks together, and the release agent block impurities are mixed into the rubber material, causing bubbles in the film in the next process and other quality problems; (2) Production personnel need to enter the pool regularly to clean the release agent sediment, which is labor-intensive and poses safety risks. The cleaning work can only alleviate the impurity problem but cannot completely solve it, and it causes waste of release agent and increases production costs; (3) The water mist generated by the spraying and quenching facilities to reduce flue gas corrodes the casing of peripheral equipment, and water often accumulates on the ground, posing safety risks and other problems.

[0003] In view of the above problems, the present invention is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a chute-type release agent circulation system for a rubber mixing process, which solves the problem of uneven release agent concentration and easy precipitation, removes the spray system and the rapid cooling water tank, improves the utilization rate of the release agent, saves production costs, and solves the problems of water mist generated by the spraying and rapid cooling facilities corroding the casing of peripheral equipment and the safety risks posed by frequent water accumulation on the ground.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A chute-type release agent circulation system for a rubber mixing process comprises a release agent tank for containing release agent to soak and cool rubber products and to dip-coat the release agent, a stirring circulation device connected to the release agent tank for stirring the release agent precipitated in the release agent tank evenly and then circulating it back to the release agent tank, a cooling device for cooling the release agent in the release agent tank, and a displacement drive device for dragging the release agent tank, the stirring circulation device, and the cooling device to move. The release agent tank is arranged at the edge of the rubber extruder roller.

[0007] Preferably, it further includes an isolating agent feeder for adding isolating agent with an adjustable isolating agent feeding speed. The stirring circulation device includes a stirring tank for evenly stirring the isolating agent, a pipeline pump for pumping the evenly stirred isolating agent in the stirring tank back into the isolating agent pool, a feed pipeline for connecting the isolating agent pool and the stirring tank, and a discharge pipeline for connecting the stirring tank and the isolating agent pool. The pipeline pump is arranged on the discharge pipeline, and the isolating agent feeder is connected to the stirring tank.

[0008] Preferably, the cooling device comprises a cooling interlayer provided at the lower part of the isolation agent pool, wherein cooling water flows through the cooling interlayer.

[0009] Preferably, the shift drive device includes a bracket for placing the isolation agent pool and the stirring circulation device and a drive device for dragging the isolation agent pool and the stirring circulation device to move. The drive device is fixedly connected to the bracket, and a roller is provided at the bottom of the bracket. A guide rail cooperating with the roller is provided under the bracket.

[0010] Preferably, the driving device is a cylinder, and the piston rod of the cylinder is fixedly connected to the bracket.

[0011] Preferably, the bottom of the release agent pool is tilted, and the tilt angle of the bottom of the release agent pool is 15-25 degrees, and the stirring circulation device is connected to both ends of the tilt of the release agent pool.

[0012] Preferably, a sinking port is provided at the lowest point of the inclined bottom of the release agent pool, the stirring circulation device is connected to the sinking port, and a filter screen for filtering and separating impurities and rubber fragments in the release agent is provided at the sinking port.

[0013] Preferably, the diameter of the sieve holes of the filter screen is 3-5 mm, and the distance between two adjacent sieve holes is 1-3 mm.

[0014] Preferably, the bottom of the isolation agent pool is inclined along the length direction of the isolation agent pool, and the length of the isolation agent pool is 4.5-6m.

[0015] Preferably, a pressing roller device is provided on the upper portion of the release agent pool for pressing the rubber product falling into the release agent pool into the release agent in the release agent pool.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The bottom of the isolating agent pool of the inclined trough type isolating agent circulation system is inclined, and a sinking port is set at the lowest point of the inclined bottom of the isolating agent pool, and a filter screen is added at the sinking port. The filter screen can filter and separate impurities and crushed rubber in the isolating agent, thereby preventing impurities and crushed rubber in the isolating agent from continuously circulating into the isolating agent pool and causing pollution to rubber products. The sinking port is connected to the mixing tank through a feed pipe. After the isolating agent is evenly stirred in the mixing tank, it is pressurized and circulated to the higher end of the isolating agent pool chute through a pipeline pump. The isolating agent is ejected from the discharge pipe connected to the isolating agent pool and flows along the chute to the bottom area, thereby realizing the circulation of the isolating agent. Moreover, the precipitate generated in the isolating agent pool flows into the mixing tank and is recycled after stirring, ensuring that the concentration of the isolating agent is stable, uniform, and without precipitation, solving the quality problems of the isolating agent on the film not drying up and mixed with impurities, improving the utilization rate of the isolating agent, and saving production costs.

[0018] (2) The length of the isolation agent pool is 4.5-6m. Compared with the previous isolation agent pool, the isolation agent pool in the present invention is lengthened. The isolation agent pool is extended to the edge of the extruder roller. The rubber product enters the isolation agent pool directly from the extruder. A cooling interlayer with circulating cooling water is provided at the bottom of the isolation agent pool. The cooling interlayer cools the isolation agent in the isolation agent pool. The cooling interlayer is provided at the bottom of the isolation agent pool and is in close contact with the isolation agent pool. The contact area is large, which increases the cooling effect of the cooling interlayer. The setting of the cooling interlayer enables the isolation agent pool to cool the rubber product extruded from the extruder, and the rubber product extruded from the extruder directly enters the isolation agent pool. The moisture adheres to the rubber product to ensure that the smoke is controlled. This design enables the isolation agent pool to replace the spray system and the quenching water tank, effectively solves the risks of equipment corrosion and ground water accumulation, and improves the workshop environment.

[0019] (3) A shift drive device is added to the bottom of the release agent pool. The shift drive device can move the release agent pool to the edge of the extruder roller, so that the rubber products can directly enter the release agent pool for cooling after being extruded from the extruder. When the production staff cleans the filter screen or handles anomalies, the shift drive device shifts the release agent pool to leave enough space for personnel to enter and exit and handle anomalies.

[0020] (4) The chute-type release agent circulation system is also provided with a release agent feeder, which is provided with a vibrator and a frequency converter for controlling the release agent feeding speed. The release agent feeder is connected to the stirring tank. The release agent feeding speed is set according to the release agent concentration requirement in the release agent pool. The release agent is continuously added to the stirring tank from the release agent feeder and transported to the release agent pool through a pipeline pump to compensate for the release agent consumed in the release agent pool as the film is output.

[0021] (5) A pressing roller device is also provided on the upper part of the release agent pool of the chute type release agent circulation system. When the rubber product extruded by the extruder enters the release agent pool, the pressing roller of the pressing roller device descends to press the rubber product falling into the release agent pool into the release agent pool, thereby ensuring that the rubber product falling into the release agent pool is immersed in the release agent pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The diagram is a front view of the chute-type release agent circulation system for the rubber mixing process according to the present invention.

[0023] Figure 2 The figure is a top view of the chute type release agent circulation system used in the rubber mixing process of the present invention.

[0024] Figure 3 This is the main view of the isolation agent tank.

[0025] Figure 4 A top view of the filter screen.

[0026] Figure 5 This is the front view of the filter screen.

[0027] Figure 6 It is a structural schematic diagram of the pressure roller device.

[0028] In the figure: 1 - pressure roller device, 2 - release agent tank, 3 - cooling interlayer, 4 - release agent feeder, 5 - bracket, 6 - cylinder, 7 - pipeline pump, 8 - roller, 9 - filter screen, 10 - feed pipe, 11 - mixing tank, 12 - discharge pipe, 13 - guide rail, 14 - sinking mouth, 15 - first angle steel, 16 - handle, 17 - pressure roller, 18 - bracket, 19 - second cylinder, 20 - guide rod, 21 - guide groove, 22 - sieve hole, 23 - sieve plate, 24 - second angle steel. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0030] like Figure 1 、 2As shown in Figures 3 and 4, the chute-type release agent circulation system for the rubber mixing process provided in this specific embodiment includes a release agent tank 2 for containing release agent to soak and cool the rubber products and to dip-coat the release agent, a stirring circulation device connected to the release agent tank 2 for stirring the release agent precipitated in the release agent tank 2 and then circulating it back to the release agent tank 2, a cooling device for cooling the release agent in the release agent tank 2, and a displacement drive device for dragging the release agent tank 2, the stirring circulation device and the cooling device.

[0031] The bottom of the release agent tank 2 is tilted, and the stirring and circulation device is connected to both ends of the tilted release agent tank 2. The tilt angle of the release agent tank 2 bottom is 15-25 degrees. In this specific embodiment, the tilt angle is set to 20 degrees. The tilt angle of the release agent tank 2 bottom should be moderate. If the tilt angle is too large, the release agent depth at the lower part of the release agent tank 2 will be much greater than the release agent depth at the higher part of the release agent tank 2 bottom. In addition, the rubber products extruded from the extruder will quickly slide to the lower part of the release agent tank 2 bottom, causing the rubber products to accumulate at the lower part of the release agent tank 2. This will further cause the release agent temperature in the release agent tank 2 to be uneven. The higher temperature at the lower part of the release agent tank 2 is not conducive to cooling the rubber products. If the tilt angle of the release agent tank 2 is too small, the release agent that has settled at the bottom of the release agent tank 2 will settle, and impurities and rubber fragments in the release agent tank will be distributed at the bottom of the release agent tank 2, making it difficult for them to quickly gather at the lowest part of the release agent tank 2 to enter the stirring and circulation device for release agent circulation.

[0032] A sinking port 14 is provided at the lowest point of the inclined bottom of the isolation agent pool 2. The stirring circulation device is connected to the sinking port 14. A filter screen 9 for filtering and separating impurities and broken rubber in the isolation agent is provided at the sinking port 14. The sinking port 14 is provided with a funnel-shaped structure. A first angle steel 15 is provided around the inner periphery of the sinking port 14. The filter screen 9 includes a sieve plate 23 and a second angle steel 24 provided around the sieve plate 23. The sieve plate 23 is a rectangular structure. The second angle steels 24 are provided back to back. The edges of the sieve plate 23 are connected to the corners of the second angle steel 24. The second angle steels 24 are provided at three edges of the sieve plate 23. Handles 16 are provided on the two opposite second angle steels 24. The handles 16 facilitate lifting the sieve plate 23 for cleaning. The filter screen 9 is placed on the first angle steel 15 in the sinking port 14 to facilitate disassembly and cleaning of the filter screen 9.

[0033] The pores 22 of the filter screen 9 have a diameter of 3-5 mm, and the pitch between adjacent pores 22 is 1-3 mm. In this embodiment, the pores 22 have a diameter of 4 mm, and the pitch between adjacent pores 22 is 2 mm. If the pores and pitch are too small, the filter screen 9 may easily become clogged. If they are too large, the filtration effect may be poor, allowing some impurities and rubber fragments to enter the mixing circulation device.

[0034] The cooling device includes a cooling interlayer 3 provided at the bottom of the release agent pool 2. Cooling water is circulated in the cooling interlayer 3. The bottom of the release agent pool 2 is inclined along the length direction of the release agent pool 2. The length of the release agent pool 2 is 4.5-6m. In this specific embodiment, the length of the release agent pool 2 is 5m. Compared with the previous release agent pool 2, the release agent pool 2 in the present invention is lengthened. The release agent pool 2 is extended to the edge of the extruder roller. The rubber product is directly discharged from the extruder into the release agent pool 2. The cooling interlayer 3 cools the release agent in the release agent pool 2. In order to cool down the rubber products extruded from the extruder, the cooling interlayer 3 is provided at the bottom of the release agent pool 2 and is in close contact with the release agent pool 2. The contact area is large, which increases the cooling effect of the cooling interlayer 3. The setting of the cooling interlayer 3 enables the release agent pool 2 to cool down the rubber products extruded from the extruder, and the rubber products extruded from the extruder directly enter the release agent pool 2. The moisture adheres to the rubber products to ensure that the smoke is controlled. This design enables the release agent pool 2 to replace the spray system and the quenching water tank, effectively solving the risks of equipment corrosion and ground water accumulation, and improving the workshop environment.

[0035] The stirring circulation device is connected to the inclined ends of the isolation agent pool 2. The stirring circulation device includes a stirring tank 11 for stirring the isolation agent evenly, a pipeline pump 7 for pumping the evenly stirred isolation agent in the stirring tank 11 back to the isolation agent pool 2, a feed pipeline 10 for connecting the isolation agent pool 2 and the stirring tank 11, and a discharge pipeline 12 for connecting the stirring tank 11 and the isolation agent pool 2. The pipeline pump 7 is provided on the discharge pipeline 12, the feed pipeline 10 is connected to the sinking port 14 of the isolation agent pool 2, a valve for controlling the flow of the pipeline is provided on the feed pipeline 10, and the discharge pipeline 12 is connected to the bottom of the isolation agent pool 2. The higher end is connected, and the release agent in the release agent pool 2 and the precipitated release agent enter the stirring tank 11 through the feed pipe 10 and are evenly mixed. After being pressurized by the pipeline pump 7, they are ejected from the discharge pipe 12 connected to the release agent pool 2, and then flow to the bottom area along the chute, thereby realizing the circulation of the release agent. In addition, the precipitate generated in the release agent pool 2 flows into the stirring tank 11 and is recycled after stirring, ensuring that the concentration of the release agent is stable, uniform, and free of precipitation, solving the quality problems of the release agent on the film not drying up and mixing with impurities, improving the utilization rate of the release agent, and saving production costs.

[0036] The stirring tank 11 is also connected to a release agent feeder 4, which is provided with a vibrator and a frequency converter for controlling the release agent feeding speed. The release agent feeder 4 is connected to the stirring tank 11. The release agent feeding speed is set according to the release agent concentration requirement in the release agent pool 2. The release agent is continuously added to the stirring tank 11 from the release agent feeder 4 and transported to the release agent pool 2 through the pipeline pump 7 to compensate for the release agent consumed in the release agent pool 2 as the film is output.

[0037] The shift drive mechanism includes a bracket 5 for placing the release agent tank 2 and the agitator and a cylinder 6 for moving the release agent tank 2 and the agitator. The piston rod of the cylinder 6 is fixedly connected to the bracket 5. A roller 8 is located at the bottom of the bracket 5, and a guide rail 13 is located below the bracket 5, which cooperates with the roller 8 and is welded to the iron plate. The shift drive mechanism can move the release agent tank 2 to the edge of the extruder roller, allowing the rubber product to enter the release agent tank 2 directly after extrusion to cool down. When production personnel need to clean the filter screen 9 or address an anomaly, the shift drive mechanism shifts the release agent tank 2 to allow sufficient space for personnel to enter and exit and to address the anomaly.

[0038] A pressure roller assembly 1 is located above the release agent tank 2, for pressing rubber products that have fallen into the release agent tank 2 into the release agent within the tank 2. The pressure roller assembly 1 includes a pressure roller 17 for pressing the rubber products into the release agent tank 2, a second cylinder 19 for driving the pressure roller 17 up and down, a guide rod 20 for limiting the position of the pressure roller 17, a guide groove 21 that cooperates with the guide rod 20, and a bracket 18 for supporting the second cylinder 19, the guide rod 20, and the guide groove 21. The bracket 18 is mounted on the release agent tank 2, and the second cylinder 19 and the guide groove 21 are connected to the bracket 18. When the rubber product extruded by the extruder enters the release agent tank 2, the pressure roller 17 of the pressure roller assembly 17 descends, pressing the rubber product into the release agent tank 2, thereby ensuring that the rubber product is immersed in the release agent tank 2.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A chute type release agent circulation system for a rubber mixing process, characterized in that: The release agent tank comprises a release agent tank for containing release agent to soak and cool rubber products and to dip in the release agent, a stirring circulation device connected to the release agent tank for stirring the release agent precipitated in the release agent tank and circulating it back to the release agent tank, a cooling device for cooling the release agent in the release agent tank, and a displacement drive device for moving the release agent tank, the stirring circulation device, and the cooling device. The release agent tank is arranged at the edge of the roller of the rubber extruder. The bottom of the isolation agent pool is tilted; the stirring circulation device is connected to both inclined ends of the isolation agent pool; and the tilt angle of the bottom of the isolation agent pool is 15-25°.

2. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: It also includes an isolation agent feeder for adding isolation agent with an adjustable isolation agent feeding speed. The stirring circulation device includes a stirring tank for evenly stirring the isolation agent, a pipeline pump for pumping the evenly stirred isolation agent in the stirring tank back into the isolation agent pool, a feed pipeline for connecting the isolation agent pool and the stirring tank, and a discharge pipeline for connecting the stirring tank and the isolation agent pool. The pipeline pump is arranged on the discharge pipeline, and the isolation agent feeder is connected to the stirring tank.

3. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: The cooling device comprises a cooling interlayer arranged at the lower part of the isolation agent pool, and cooling water flows through the cooling interlayer.

4. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: The displacement drive device includes a bracket for placing the isolation agent pool and the stirring circulation device and a drive device for dragging the isolation agent pool and the stirring circulation device to move. The drive device is fixedly connected to the bracket, and a roller is provided at the bottom of the bracket. A guide rail that cooperates with the roller is provided under the bracket.

5. The chute type release agent circulation system for rubber mixing process according to claim 4, characterized in that: The driving device is a cylinder, and the piston rod of the cylinder is fixedly connected to the bracket.

6. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: A sinking port is provided at the lowest point of the inclined bottom of the release agent pool, the stirring circulation device is connected to the sinking port, and a filter screen for filtering and separating impurities and rubber fragments in the release agent is provided at the sinking port.

7. The chute type release agent circulation system for rubber mixing process according to claim 6, characterized in that: The pore size of the filter sieve is 3-5 mm, and the pore distance between two adjacent sieve pores is 1-3 mm.

8. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: The bottom of the isolation agent pool is inclined along the length direction of the isolation agent pool, and the length of the isolation agent pool is 4.5-6m.

9. The chute type release agent circulation system for rubber mixing process according to claim 1, characterized in that: The upper part of the release agent pool is provided with a pressing roller device for pressing the rubber product falling into the release agent pool into the release agent in the release agent pool.

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