Material pressing device of internal mixer

Abstract

The utility model relates to the technical field of internal mixers, in particular to an internal mixer pressing device which comprises a mounting seat connected to an internal mixer shell and located at the top of a feeding device. The driving part is connected to the top of the mounting seat; the material pressing rod is connected with the output end of the driving piece; the material pressing lump is detachably connected with the end, away from the driving piece, of the material pressing rod. The method has the effect of improving the product quality.

Description

Technical Field

[0001] The present application relates to the technical field of internal mixers, and in particular to a material pressing device for an internal mixer. Background Art

[0002] Internal mixers are used for plasticating, mixing and final mixing of rubber in the rubber industry. When the raw materials enter the internal mixer from the feeding device, a pressing device is fixedly installed on the shell of the internal mixer. The pressing device is located on the top of the feeding device. Under the action of the pressing device, the raw materials are pressed between the two rotors and the wall of the mixing chamber to improve the refining efficiency.

[0003] However, since the carbon black, compounding agents, vulcanizing agents, accelerators and other additives used in the mixing process are powdered, highly corrosive solid small particles, some of these powders will be in a suspended state during mixing and cannot be fully mixed. They will escape through the gap between the pressing ball of the pressing device and the mixing chamber, and gather on the top surface of the pressing ball to form accumulated materials, which will adhere to the pressing ball for a long time, not only accelerating the corrosion rate of the pressing ball, but also may cause the metal layer on the surface of the pressing ball to delaminate and peel off, mix into the rubber compound to form impurities, or mix into the next batch of products, resulting in poor product quality. Utility Model Content

[0004] In order to improve product quality, the present application provides a material pressing device for an internal mixer.

[0005] The present application provides a material pressing device for an internal mixer, which adopts the following technical solution:

[0006] A material pressing device for an internal mixer, comprising:

[0007] A mounting base, connected to the mixer housing and located on the top of the feeding device;

[0008] A driving member connected to the top of the mounting seat;

[0009] A pressing rod connected to the output end of the driving member;

[0010] The pressing lump is detachably connected to the end of the pressing rod away from the driving member.

[0011] By adopting the above technical solution, the detachable connection design between the pressing ball and the pressing rod makes it easy to clean and replace the pressing ball, reduces the possibility of material accumulation adhering to the pressing ball, thereby reducing the corrosion rate of the pressing ball, and further reduces the possibility of the metal layer on the surface of the pressing ball peeling off and mixing into the rubber to form impurities, and reduces the possibility of accumulated material mixing into the next batch of products, thereby improving the purity and consistency of rubber refining, and thereby improving product production quality.

[0012] Optionally, the pressing block is threadably connected to the pressing rod.

[0013] By adopting the above technical solution, the threaded connection allows for quick disassembly and assembly of the pressure plate and the pressure ball, thereby improving the convenience of disassembly and assembly. The threaded connection distributes the load through multiple contact points along the length of the thread, which helps to distribute the stress more evenly, reduce local stress concentration, and improve installation stability. The threaded connection has a self-locking characteristic. In the absence of external force, the thread will not loosen on its own, reducing the possibility of loosening of the threaded connection under vibration or dynamic load, and improving the stability of the pressure ball when in use.

[0014] Optionally, the pressing block is provided with an external thread, and the pressing rod is provided with an internal thread, and the external thread of the pressing block matches the internal thread of the pressing rod.

[0015] By adopting the above technical solution, the pressing block is inserted into the pressing rod for threaded connection, so that the pressing rod is connected to the pressing block in a covering state. When the pressing block is pressing materials, the raw materials splashed to the top of the pressing block are not easy to enter the threaded connection part, thereby reducing the possibility of thread corrosion and damage, and improving the threaded connection stability between the external thread of the pressing block and the internal thread of the pressing rod.

[0016] Optionally, the bottom of the pressing ball is in an inverted triangle shape.

[0017] By adopting the above technical solution, it is convenient to insert the pressing piece between the two rotors of the internal mixer, thereby improving the refining efficiency.

[0018] Optionally, the inner wall of the mounting seat is connected to a brush rod, the outer wall of the brush rod is provided with a brush, and the brush is in contact with the pressing lump.

[0019] By adopting the above technical solution, the driving member drives the pressing rod to move, thereby driving the pressing mass to move, and the brush is attached to the pressing mass. When the pressing mass moves, it pushes the brush, and the brush scrapes the pressing mass to scrape off the raw materials on the pressing mass, thereby reducing the possibility of the raw materials adhering to the pressing mass.

[0020] Optionally, a guide member is fixedly connected to the inner wall of the mounting seat, and the pressing rod is slidably connected to the guide member.

[0021] By adopting the above technical solution, the guide member guides the sliding direction of the pressing rod, reducing the possibility of the pressing position of the pressing lump being offset, so that the raw materials can be stably pressed between the two rotors and the wall plate of the mixing chamber, thereby improving the refining efficiency.

[0022] Optionally, a door slot is provided on one side of the mounting seat, an opening and closing door is hinged at the door slot of the mounting seat, and a sealing member is connected to the mounting seat, and the sealing member is located at a gap between the mounting seat and the opening and closing door.

[0023] By adopting the above technical solution, an opening and closing door is provided to facilitate cleaning and replacement of the pressing mass, and a sealing member is provided to enhance the sealing performance of the internal mixer, reduce the possibility of raw material deterioration, and improve product quality.

[0024] Optionally, a transparent window is provided on one side of the mounting seat, and the pressing lump is located within the visible range of the transparent window.

[0025] By adopting the above technical solution, the pressing ball can be viewed in real time through the transparent window. When raw materials are attached to the pressing ball or corrosion occurs, the pressing ball can be replaced in time, thereby reducing the possibility of impurities being added to the product due to the raw materials being attached to the pressing ball or being damaged, thereby improving product quality.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The detachable connection design between the pressing block and the pressing rod makes it easy to clean and replace the pressing block, reducing the possibility of material accumulation on the pressing block, thereby reducing the corrosion rate of the pressing block, and further reducing the possibility of the metal layer on the surface of the pressing block peeling off and mixing into the rubber to form impurities, and reducing the possibility of material accumulation mixing into the next batch of products, thereby improving the purity and consistency of rubber refining, and thus improving product production quality;

[0028] 2. The pressing block is inserted into the pressing rod for threaded connection, so that the pressing rod is connected to the pressing block in a covering state. When the pressing block is pressing materials, the raw materials splashed to the top of the pressing block are not easy to enter the threaded connection part, thereby reducing the possibility of thread corrosion damage and improving the threaded connection stability between the external thread of the pressing block and the internal thread of the pressing rod;

[0029] 3. The driving member drives the pressing rod to move, thereby driving the pressing mass to move. The brush is attached to the pressing mass. When the pressing mass moves, it pushes the brush, and the brush scrapes the pressing mass to scrape off the raw materials on the pressing mass, thereby reducing the possibility of the raw materials adhering to the pressing mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the position of the elastic member in the embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the brush structure in the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Mounting seat; 11. Pressing groove; 2. Driving member; 3. Pressing rod; 31. Sliding groove; 4. Pressing lump; 41. Socket groove; 5. Elastic member; 51. Inserting rod; 6. Brush rod; 61. Brush; 7. Guide member; 8. Opening and closing door; 81. Sealing member; 82. Transparent window. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The embodiment of the present application discloses a material pressing device for an internal mixer.

[0037] Reference Figure 1 A material pressing device for an internal mixer comprises a mounting base 1, a driving member 2, a pressing rod 3 and a pressing mass 4. The mounting base 1 is fixed to the internal mixer housing and is located at the top of the feeding device. A pressing groove 11 is provided on the bottom wall of the mounting base 1. The pressing groove 11 is connected to the mixing chamber. The driving member 2 is vertically inserted into the top of the mounting base 1. The driving member 2 is fixed to the top wall of the mounting base 1. The output end of the driving member 2 is fixedly connected to the pressing rod 3. The pressing rod 3 is located in the pressing groove 11. One end of the pressing rod 3 away from the driving member 2 is detachably connected to the pressing mass 4. The pressing mass 4 is located directly above the two rotors. In this embodiment, the driving member 2 adopts a cylinder.

[0038] When the outer wall of the pressing block 4 is attached with accumulated material or is damaged, the pressing block 4 is detachably connected to the pressing rod 3, the pressing block 4 is removed from the pressing rod 3, and the pressing block 4 is cleaned or replaced to reduce the possibility of accumulated material adhering to the pressing block 4, thereby reducing the corrosion rate of the pressing block 4, and the possibility of the metal layer on the surface of the pressing block 4 peeling off and mixing into the rubber to form impurities, and reducing the possibility of accumulated material mixing into the next batch of products due to lack of timely cleaning, thereby improving the purity and consistency of rubber refining, and thus improving product production quality.

[0039] Reference Figure 2 The space of the pressing groove 11 is limited. In order to reduce the difficulty of disassembling and assembling the pressing lump 4, the pressing lump 4 is threadedly connected to the pressing rod 3, which improves the convenience of disassembly and assembly while improving the connection stability between the pressing lump 4 and the pressing rod 3.

[0040] The top of the pressing block 4 is convex, and an external thread is provided at the convex part. The bottom wall of the pressing rod 3 is provided with a threaded opening, and the inner wall of the threaded opening is provided with an internal thread. The top convex part of the pressing block 4 is inserted into the threaded opening of the pressing rod 3, and the external thread of the pressing block 4 matches the internal thread of the pressing rod 3.

[0041] When the pressing operation is performed, the driving member 2 is started, and the driving member 2 drives the pressing rod 3 to descend. The descending of the pressing rod 3 drives the pressing block 4 to descend. The pressing block 4 squeezes the raw materials, so that the raw materials are mixed between the two rotors and the wall plate of the mixing chamber. In order to ensure that the raw material pressing process continues, the pressing block 4 needs to be continuously lifted and lowered. During the lifting and lowering process of the pressing block 4, the raw materials are prone to splashing. The pressing block 4 is inserted into the pressing rod 3 for threaded connection, so that the pressing rod 3 is connected to the pressing block 4 in a covering state. When the raw materials splash, it is not easy to enter the threaded connection part, thereby reducing the possibility of thread corrosion and damage, and improving the stability of the threaded connection between the external thread of the pressing block 4 and the internal thread of the pressing rod 3.

[0042] The extended cross section at the bottom of the pressing mass 4 is in an inverted triangle shape, which facilitates the insertion of the pressing mass 4 between the two rotors of the internal mixer and improves the refining efficiency.

[0043] In order to ensure that the downward corner of the bottom of the pressing block 4 is located between the two rotors after the pressing block 4 is threaded, and the pressing block 4 can be accurately inserted between the two rotors when pressing the material, a sliding groove 31 is provided on the side wall of the pressing rod 3, and an elastic member 5 is fixedly connected to the top groove wall of the sliding groove 31. In this embodiment, the elastic member 5 adopts a spring, and an insertion rod 51 is connected to the end of the elastic member 5 away from the groove wall of the sliding groove 31. The insertion rod 51 is slidably connected to the pressing rod 3, and a socket groove 41 matching the insertion rod 51 is provided on the top wall of the pressing block 4.

[0044] When the pressing mass 4 is installed, the pressing mass 4 is placed at the bottom of the pressing rod 3, the insertion rod 51 is pulled down, the spring is stretched, and the insertion rod 51 is inserted into the socket groove 41 to guide the moving direction of the pressing mass 4, and move the pressing mass 4 toward the threaded mouth of the pressing rod 3, so that the starting point of each time the pressing mass 4 is threadedly connected with the pressing rod 3 is consistent. When the pressing mass 4 and the pressing rod 3 need to be threadedly matched, the insertion rod 51 is pulled out of the pressing mass 4, and the pressing mass 4 is twisted to tighten the threads of the pressing mass 4 and the pressing rod 3. The position of the pressing mass 4 is adjusted, and the insertion rod 51 is inserted into the socket groove 41 to fix the position of the pressing mass 4, thereby reducing the possibility of the position of the bottom of the pressing mass 4 toward the lower corner being offset, thereby improving the refining efficiency.

[0045] A brush rod 6 is fixedly connected to the inner wall of the mounting base 1, and the extension direction of the brush rod 6 is consistent with the extension direction of the pressing mass 4. The brush rod 6 is symmetrically arranged on both sides of the pressing mass 4. A brush 61 is arranged on the outer wall of the brush rod 6. The brush 61 is divided into multiple layers from the top to the bottom of the brush rod 6, and the end of the brush 61 away from the brush rod 6 is in an inverted triangle shape and attached to the pressing mass 4.

[0046] When the pressing mass 4 is lifted or lowered, the pressing mass 4 passes between the two brush rods 6, and the brush 61 is attached to the pressing mass 4. The brush 61 scrapes the pressing mass 4 to scrape off the raw materials on the pressing mass 4, thereby reducing the possibility of raw materials adhering to the pressing mass 4 and improving the cleanliness of the pressing mass 4.

[0047] Reference Figure 3 In order to further improve the cleanliness of the pressing mass 4 by the brush 61 , the brushes 61 at different levels are staggered.

[0048] Reference Figure 1 The inner wall of the mounting seat 1 is fixedly connected with a guide member 7, the guide member 7 is located at the top of the brush rod 6, the press rod 3 is inserted into the guide member 7, and the press rod 3 is slidably connected with the guide member 7.

[0049] Start the driving member 2, which drives the pressing member to move up and down. The pressing member is inserted into the guide member 7, and the guide member 7 guides the sliding direction of the pressing rod 3, thereby reducing the possibility of the pressing position of the pressing block 4 being offset, so that the raw materials can be stably pressed between the two rotors and the wall plate of the mixing chamber, thereby improving the refining efficiency.

[0050] A door slot is provided on one side of the mounting seat 1 , and an opening and closing door 8 is hinged at the door slot of the mounting seat 1 . When the pressing lump 4 is to be cleaned or replaced, the opening and closing door 8 is opened to improve the convenience of cleaning or replacing the pressing lump 4 .

[0051] When the opening and closing door 8 is closed, there is a gap between the groove wall of the door groove and the opening and closing door 8, which may easily expose the raw materials to the air and cause the raw materials to deteriorate. In order to reduce the deterioration of the raw materials and improve the production quality of the products, the mounting base 1 is fixedly connected with a sealing member 81, and the sealing member 81 is located in the gap between the mounting base 1 and the opening and closing door 8. The sealing member 81 seals the gap between the groove wall of the door groove and the opening and closing door 8. In this embodiment, the sealing member 81 is a rubber ring.

[0052] A notch is provided on one side of the opening and closing door 8 , and a transparent window 82 is embedded and installed in the notch of the opening and closing door 8 . The pressing mass 4 is located within the visible range of the transparent window 82 .

[0053] The pressing mass 4 can be viewed in real time through the transparent window 82. When the pressing mass 4 is attached with raw materials or corroded, the pressing mass 4 can be replaced in time to reduce the possibility of impurities in the product caused by the pressing mass 4 being attached with raw materials or damaged, thereby improving product quality.

[0054] The implementation principle of a pressing device of an internal mixer in the embodiment of the present application is as follows: the pressing rod 3 is threadedly connected to the pressing block 4, which is convenient for disassembling and assembling the pressing block 4 from the pressing rod 3, cleaning and replacing the pressing block 4, reducing the possibility of impurities in the product and improving the product quality. A brush 61 is provided. When the driving member 2 drives the pressing block 4 to rise and fall, the brush 61 scrapes the raw materials on the surface of the pressing block 4, reducing the possibility of raw materials adhering to the pressing block 4, improving the cleanliness of the pressing block 4, and at the same time, reducing the possibility of the deposited materials adhering to the pressing block 4 and mixing into the production of the next batch of products, thereby improving the product production quality.

[0055] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and do not limit the protection scope of the present application in turn. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A material pressing device for an internal mixer, characterized in that: include: A mounting base (1) connected to the mixer housing and located on the top of the feeding device; A driving member (2) connected to the top of the mounting seat (1); A pressing rod (3) connected to the output end of the driving member (2); The pressing lump (4) is detachably connected to the end of the pressing rod (3) away from the driving member (2).

2. A material pressing device for an internal mixer according to claim 1, characterized in that: The pressing lump (4) is threadedly connected to the pressing rod (3).

3. A material pressing device for an internal mixer according to claim 2, characterized in that: The pressing block (4) is provided with an external thread, and the pressing rod (3) is provided with an internal thread, and the external thread of the pressing block (4) matches the internal thread of the pressing rod (3).

4. The material pressing device of an internal mixer according to claim 1, characterized in that: The bottom of the pressing mass (4) is in an inverted triangle shape.

5. A material pressing device for an internal mixer according to claim 4, characterized in that: The inner wall of the mounting seat (1) is connected to a brush rod (6), the outer wall of the brush rod (6) is provided with a brush (61), and the brush (61) is in contact with the pressing lump (4).

6. The material pressing device of an internal mixer according to claim 1, characterized in that: A guide member (7) is fixedly connected to the inner wall of the mounting seat (1), and the pressing rod (3) is slidably connected to the guide member (7).

7. The internal mixer pressing device according to claim 1, characterized in that: A door slot is provided on one side of the mounting seat (1), an opening and closing door (8) is hingedly connected to the door slot of the mounting seat (1), and a sealing member (81) is connected to the mounting seat (1), and the sealing member (81) is located at a gap between the mounting seat (1) and the opening and closing door (8).

8. The internal mixer pressing device according to claim 1, characterized in that: A transparent window (82) is provided on one side of the mounting seat (1), and the pressing mass (4) is located within the visible range of the transparent window (82).

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