Mixing chamber structure of internal mixer

Abstract

The utility model discloses an internal mixer mixing chamber structure which is composed of mixing chamber components and mixing chamber end covers, the number of the mixing chamber components is two, the mixing chamber components are oppositely arranged in an attached mode, a feeding port is formed in the upper portion of each mixing chamber component, and a discharging port is formed in the lower portion of each mixing chamber component. The mixing chamber end cover comprises a mixing chamber right end cover and a mixing chamber left end cover, a plurality of screw through holes are formed in the periphery of the mixing chamber end cover, the mixing chamber right end cover and the mixing chamber left end cover are installed on the two sides of the two mixing chamber components through screws respectively, and the two sides of the mixing chamber end cover are each provided with a rotating shaft inserting hole. A sealing block in clearance fit with the mixing chamber component is fixedly arranged on the side face, facing the mixing chamber component, of the mixing chamber end cover. The mixing chamber disclosed by the utility model is detachable and convenient to clean and maintain, and meanwhile, the structures are simple and convenient to combine and easy to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of internal mixers, in particular to a mixing chamber structure of an internal mixer. Background Art

[0002] Closed rubber mixer is also called internal mixer, which is mainly used for rubber plasticizing and mixing. Internal mixer is a machine with a pair of relatively rotating rotors of specific shapes, which plasticizes and mixes polymer materials intermittently under a closed state with adjustable temperature and pressure. The mixing chamber is an important part of the rubber internal mixer.

[0003] The mixing chamber of the existing rubber internal mixer is an integral structure, which makes it difficult to disassemble and assemble the mixing chamber, and brings inconvenience to the cleaning and maintenance of the mixing chamber in the later stage. Utility Model Content

[0004] The utility model aims to provide a mixing chamber structure of an internal mixer to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing chamber structure of an internal mixer, which is composed of a mixing chamber component and a mixing chamber end cover, wherein the mixing chamber component is provided in two and relatively fitted, the upper part of the mixing chamber component is provided with a feed inlet, the lower part of the mixing chamber component is provided with a discharge outlet, the mixing chamber end cover includes a mixing chamber right end cover and a mixing chamber left end cover, a plurality of screw through holes are provided around the mixing chamber end cover, and the mixing chamber right end cover and the mixing chamber left end cover are respectively installed on both sides of the two mixing chamber components through screws A rotating shaft plug-in hole is provided on each side of the mixing chamber end cover, and a sealing block that is gap-matched with the mixing chamber component is fixedly arranged on the side of the mixing chamber end cover facing the mixing chamber component, and an oil inlet hole that vertically passes through the rotating shaft plug-in hole is provided on the sealing block, and an oil filling hole corresponding to the oil inlet hole is provided on the mixing chamber component. A plurality of engaging claws are fixed on the side of the mixing chamber end cover, and a positioning block that matches the engaging claws is fixed on the side of the mixing chamber component, and a threaded hole for installing a motor is also provided on the left end cover of the mixing chamber.

[0006] Preferably, the diameter of the oil injection hole is larger than the diameter of the oil inlet hole, and the opening position of the oil inlet hole is funnel-shaped.

[0007] Preferably, the shaft insertion hole is a stepped hole, and the hole diameter on the inner side is larger than the hole diameter on the outer side.

[0008] Preferably, a positioning protrusion is fixed at both ends of the lower part of one side of the mixing chamber component, and a positioning hole is opened at both ends of the upper part of one side of the mixing chamber component, and the positioning protrusion and the positioning hole are clearance-matched.

[0009] Preferably, the size of the feed port is equal to that of the discharge port, and corresponds to each other up and down.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the mixing chamber of the utility model is composed of two mixing chamber components and a right end cover and a left end cover of the mixing chamber. When assembled and installed, the two mixing chamber components are firstly relatively fitted, and then the right end cover and the left end cover of the mixing chamber are respectively fitted to the left and right ends of the mixing chamber components. The loose structure can be initially closed together by using a plurality of engaging claws on the mixing chamber end cover and the positioning blocks on the mixing chamber components. Then, the mixing chamber end cover and the mixing chamber components can be fixed together by using a screw. In summary, the mixing chamber of the utility model is detachable, which is convenient for cleaning and maintenance. At the same time, the combination between the structures is simple and convenient, and easy to assemble.

[0011] The utility model provides a sealing block fixedly arranged on the side of the mixing chamber end cover facing the mixing chamber component, which is in clearance fit with the mixing chamber component. The sealing block can improve the sealing performance between the mixing chamber end cover and the mixing chamber component. The side edge of the sealing block is arranged as an inclined guide surface. The guidance of the guide surface is conducive to reducing the direct collision between the mixing chamber end cover and the mixing chamber component when the mixing chamber end cover and the mixing chamber component are combined.

[0012] The sealing block of the utility model is provided with an oil inlet hole which vertically penetrates the rotating shaft plug-in hole, and the mixing chamber component is provided with an oil filling hole corresponding to the oil inlet hole. Through the cooperation between the oil inlet hole and the oil filling hole, it is convenient to add lubricating oil to the rotating shaft plug-in hole from the outside, which is convenient for equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the left end cover of the mixing chamber of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the end cover of the mixing chamber of the utility model;

[0017] Figure 4 It is a structural schematic diagram of a mixing chamber component of the utility model.

[0018] In the figure: 1. mixing chamber component; 2. right end cover of mixing chamber; 3. left end cover of mixing chamber; 4. screw; 5. shaft plug-in hole; 6. threaded hole; 7. screw through hole; 8. engaging claw; 9. sealing block; 10. oil inlet hole; 11. guiding surface; 12. feed inlet; 13. discharge port; 14. positioning protrusion; 15. positioning hole; 16. oil filling hole; 17. positioning block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] See also Figure 1-4 In the embodiment of the utility model, a mixing chamber structure of an internal mixer is composed of a mixing chamber component 1 and a mixing chamber end cover. The mixing chamber component 1 is provided with two and relatively fitted. A feed port 12 is provided at the upper portion of the mixing chamber component 1, and a discharge port 13 is provided at the lower portion of the mixing chamber component 1. The size of the feed port 12 is equal to that of the discharge port 13, and the upper and lower portions correspond. The mixing chamber end cover includes a mixing chamber right end cover 2 and a mixing chamber left end cover 3. A plurality of screw through holes 7 are provided around the mixing chamber end cover. The mixing chamber right end cover 2 and the mixing chamber left end cover 3 are respectively installed on both sides of the two mixing chamber components 1 through screws 4. A rotating shaft plug hole 5 is provided on each side of the chamber end cover, and a sealing block 9 is fixedly provided on the side of the mixing chamber end cover facing the mixing chamber component 1, which is clearance-matched with the mixing chamber component 1, and the side position of the sealing block 9 is set as an inclined guide surface 11, and an oil inlet hole 10 is provided on the sealing block 9, which vertically passes through the rotating shaft plug hole 5, and an oil filling hole 16 corresponding to the oil inlet hole 10 is provided on the mixing chamber component 1. A plurality of engaging claws 8 are fixed on the side of the mixing chamber end cover, and a positioning block 17 matching the engaging claws 8 is fixed on the side of the mixing chamber component 1, and a threaded hole 6 for installing a motor is also provided on the left end cover 3 of the mixing chamber.

[0021] The diameter of the oil filling hole 16 is larger than that of the oil inlet hole 10 , which helps to avoid a large position error between the oil filling hole 16 and the oil inlet hole 10 , resulting in the two holes not being aligned. The opening position of the oil inlet hole 10 is funnel-shaped, which facilitates the lubricating oil to enter the oil inlet hole 10 .

[0022] The shaft plug-in hole 5 is a stepped hole, and the hole diameter on the inner side is larger than the hole diameter on the outer side. The stepped shaft plug-in hole 5 can play a certain sealing role, which is beneficial to reduce the loss of lubricating oil.

[0023] A positioning protrusion 14 is fixed at each of the two ends of the lower part of one side of the mixing chamber component 1, and a positioning hole 15 is opened at each of the two ends of the upper part of one side of the mixing chamber component 1. The positioning protrusion 14 and the positioning hole 15 are clearance-matched, and the matching of the positioning protrusion 14 and the positioning hole 15 is conducive to the combination of the two mixing chamber components 1.

[0024] The working principle of the utility model is as follows: the mixing chamber of the utility model is composed of two mixing chamber components 1 and a right end cover 2 and a left end cover 3 of the mixing chamber. When assembled and installed, the two mixing chamber components 1 are firstly fitted relative to each other, and then the right end cover 2 and the left end cover 3 of the mixing chamber are respectively fitted to the left and right ends of the mixing chamber component 1. Through the multiple engaging claws 8 on the mixing chamber end cover and the positioning block 17 on the mixing chamber component 1, the loose structure can be initially closed together, and then the mixing chamber end cover and the mixing chamber component 1 can be fixed together by the screw 4; in summary, the mixing chamber of the utility model is detachable, which is convenient for cleaning and maintenance, and the combination between the structures is simple and convenient, and easy to assemble;

[0025] The utility model provides a sealing block 9 fixedly arranged on the side of the mixing chamber end cover facing the mixing chamber component 1, which is in clearance fit with the mixing chamber component 1. The sealing block 9 can improve the sealing performance between the mixing chamber end cover and the mixing chamber component 1. The side position of the sealing block 9 is arranged as an inclined guide surface 11. The guidance of the guide surface 11 is conducive to reducing the direct collision between the mixing chamber end cover and the mixing chamber component 1 when the mixing chamber end cover and the mixing chamber component 1 are combined.

[0026] The sealing block 9 of the utility model is provided with an oil inlet hole 10 which vertically penetrates the rotating shaft plug-in hole 5, and the mixing chamber component 1 is provided with an oil filling hole 16 corresponding to the oil inlet hole 10. Through the cooperation between the oil inlet hole 10 and the oil filling hole 16, it is convenient to add lubricating oil to the rotating shaft plug-in hole 5 from the outside, which facilitates the maintenance of the equipment.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mixing chamber structure of an internal mixer, characterized in that: The invention is composed of a mixing chamber component (1) and a mixing chamber end cover, wherein the mixing chamber component (1) is provided in two pieces and is relatively close to each other, a feed port (12) is provided at the top of the mixing chamber component (1), and a discharge port (13) is provided at the bottom of the mixing chamber component (1), the mixing chamber end cover comprises a mixing chamber right end cover (2) and a mixing chamber left end cover (3), a plurality of screw through holes (7) are provided around the mixing chamber end cover, the mixing chamber right end cover (2) and the mixing chamber left end cover (3) are respectively installed on the two sides of the two mixing chamber components (1) through screws (4), and a rotating shaft plug hole is provided on each side of the mixing chamber end cover. (5), a sealing block (9) is fixedly arranged on the side of the mixing chamber end cover facing the mixing chamber component (1) and is clearance-matched with the mixing chamber component (1), the sealing block (9) is provided with an oil inlet hole (10) vertically penetrating the shaft plug hole (5), the mixing chamber component (1) is provided with an oil injection hole (16) corresponding to the oil inlet hole (10), a plurality of engaging claws (8) are fixed on the side of the mixing chamber end cover, a positioning block (17) matched with the engaging claws (8) is fixed on the side of the mixing chamber component (1), and a threaded hole (6) for mounting a motor is also provided on the left end cover (3) of the mixing chamber.

2. The mixing chamber structure of an internal mixer according to claim 1, characterized in that: The diameter of the oil injection hole (16) is larger than the diameter of the oil inlet hole (10), and the opening position of the oil inlet hole (10) is funnel-shaped.

3. The mixing chamber structure of an internal mixer according to claim 1, characterized in that: The rotating shaft insertion hole (5) is a stepped hole, and the hole diameter on the inner side is larger than the hole diameter on the outer side.

4. The mixing chamber structure of an internal mixer according to claim 1, characterized in that: A positioning protrusion (14) is fixed at each of the two ends of the lower part of one side of the mixing chamber component (1), and a positioning hole (15) is opened at each of the two ends of the upper part of one side of the mixing chamber component (1), and the positioning protrusion (14) and the positioning hole (15) are clearance-matched.

5. The mixing chamber structure of an internal mixer according to claim 1, characterized in that: The size of the feed port (12) is equal to that of the discharge port (13), and corresponds to each other up and down.

Images