Feeding device of rubber internal mixer

Abstract

The utility model provides a feeding device of a rubber internal mixer, which comprises a stirring box, the inner wall of the stirring box is rotatably connected with a stirring shaft, the outer surface of the stirring shaft is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a material distributing pipe, and a plurality of material conveying ports are annularly arrayed on the outer surface of the material distributing pipe. A connecting ring is fixedly connected to the outer surface of the material distributing pipe, in the pre-dispersing process, a motor can be started, the motor drives a second pulley and a first pulley to rotate, then a rotating shaft is driven to rotate, and the rotating shaft rotates to drive a first gear, a second gear and a third gear to rotate; the stirring shaft and the connecting ring on the stirring shaft are further driven to rotate, meanwhile, the stirring blades are driven to rotate to achieve stirring, in the stirring process, the compounding agent in the material distributing pipe is discharged along the material conveying opening to achieve the operation of stirring and distributing materials at the same time, and then the pre-dispersing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of rubber mixing, in particular to a feeding device of a rubber mixing machine. Background Art

[0002] Rubber mixing is the process of thoroughly blending various rubber raw materials with compounding ingredients such as carbon black, sulfur, accelerators, and antioxidants to create a uniformly mixed rubber compound. This ensures the stability and consistency of the physical, chemical, and processing properties of rubber products. Mixing evenly disperses the compounding ingredients throughout the rubber, improving the physical and mechanical properties of rubber products, such as strength, hardness, wear resistance, and aging resistance, to meet the diverse requirements of different rubber products. It also adjusts the rubber's processing properties, such as plasticity and fluidity, making it easier to process in subsequent molding, vulcanization, and other processes, thereby improving production efficiency and product quality.

[0003] The local concentration of raw materials is too high during the feeding process, affecting the mixing effect. For compounding ingredients that are prone to agglomeration, pre-dispersion measures can be taken, such as pre-mixing them with a small amount of rubber or dispersant before feeding them into the internal mixer to improve their dispersion in the rubber. Currently, rubber mixing equipment cannot pre-disperse them during the mixing process, resulting in insufficient mixing of some rubber and a high number of defective products.

[0004] Therefore, we make improvements to this and propose a feeding device for a rubber internal mixer. Utility Model Content

[0005] The utility model aims to solve the problem that the local concentration of raw materials before rubber mixing is too high, which affects the mixing effect.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a feeding device for a rubber internal mixer to solve the above-mentioned problem.

[0007] The utility model is specifically as follows:

[0008] It includes a mixing box, the inner wall of which is rotatably connected to a mixing shaft, the outer surface of the mixing shaft is fixedly connected to a connecting rod, the other end of the connecting rod is fixedly connected to a distribution pipe, the outer surface of the distribution pipe has a plurality of feed ports in a circular array, the outer surface of the distribution pipe is fixedly connected to a connecting ring, the outer surface of the connecting ring has a plurality of mixing blades in a circular array, the mixing blades are bent in a spiral shape from one end to the other, and the middle part of the mixing blades is fixedly connected to the connecting ring.

[0009] As an optimal technical solution of the present invention, the stirring shaft is fixedly connected to a first gear away from the first pulley end, the first gear tooth root is meshed with a second gear, the second gear tooth root is meshed with a third gear, and the movable end of the third gear is fixedly connected to a rotating shaft.

[0010] As an optimal technical solution of the present invention, the rotating shaft passes through the mixing box and is fixedly connected to a first pulley at one end. The outer surface of the first pulley is in contact with a belt, the other end of the belt is in contact with a second pulley, and the movable end of the second pulley is fixedly connected to a motor.

[0011] As a preferred technical solution of the present invention, the outer surface of the rotating shaft is fixedly connected to a limiting ring, the lower surface of the limiting ring is fixedly connected to a support frame, and the inner bottom of the support frame is fixedly connected to a distribution box.

[0012] As an optimal technical solution of the present invention, the side of the distribution box is connected to a material delivery pipe, the other end of the material delivery pipe is connected to a connecting ball, the outer surface of the connecting ball is hinged with a telescopic tube, and the other end of the telescopic tube passes through the mixing box and is connected to the distribution pipe.

[0013] As a preferred technical solution of the present invention, the lower surface of the mixing box is arc-shaped, and a discharge port is provided on the lower surface.

[0014] As a preferred technical solution of the present invention, the gear ratios of the first gear, the second gear and the third gear decrease exponentially.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the solution of the present utility model:

[0017] During the pre-dispersion process, the motor can be turned on, and the motor drives the second pulley and the first pulley to rotate, thereby driving the rotating shaft to rotate. The rotation of the rotating shaft drives the rotation of the first gear, the second gear and the third gear, thereby driving the stirring shaft and the connecting ring on the stirring shaft to rotate, and at the same time drives the stirring blade to rotate to achieve stirring. During the stirring process, the compounding agent inside the distribution pipe is discharged along the feed port to realize the operation of stirring and distributing the materials, thereby achieving the effect of pre-dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a feeding device of a rubber internal mixer provided by the utility model;

[0019] Figure 2 A schematic diagram of a speed regulating device of a feeding device of a rubber internal mixer provided by the utility model;

[0020] Figure 3 A schematic diagram of a stirring device of a feeding device of a rubber internal mixer provided by the present invention;

[0021] Figure 4 A cross-sectional view of a stirring device of a feeding device of a rubber internal mixer provided by the present invention;

[0022] Figure 5 The utility model provides a top view of a stirring device of a feeding device of a rubber internal mixer.

[0023] Indicated in the figure:

[0024] 1. Mixing box; 101. Mixing shaft; 102. Connecting rod; 103. Material distribution pipe; 104. Material delivery port; 105. Connecting ring; 107. Mixing blade;

[0025] 2. First gear; 201. Second gear; 202. Third gear; 203. Rotating shaft;

[0026] 3. First pulley; 301. Belt; 302. Second pulley; 303. Motor;

[0027] 4. Limiting ring; 401. Support frame; 402. Material distribution box;

[0028] 5. Feed pipe; 501. Connecting ball; 502. Telescopic tube;

[0029] 6. Discharge port. DETAILED DESCRIPTION

[0030] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] As mentioned in the background art, the local concentration of the raw materials before rubber kneading is too high, which affects the mixing effect.

[0032] In order to solve this technical problem, the utility model provides a feeding device for a rubber internal mixer, which is used for pre-dispersing the rubber before internal mixing.

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] A feeding device for a rubber internal mixer includes a mixing box 1, the inner wall of the mixing box 1 is rotatably connected to a mixing shaft 101, the outer surface of the mixing shaft 101 is fixedly connected to a connecting rod 102, the other end of the connecting rod 102 is fixedly connected to a distribution pipe 103, the outer surface of the distribution pipe 103 has a plurality of feeding ports 104 in an annular array, the outer surface of the distribution pipe 103 is fixedly connected to a connecting ring 105, the outer surface of the connecting ring 105 has a plurality of mixing blades 107 in an annular array, the mixing blades 107 are bent in a spiral shape from one end to the other end, and the middle part of the mixing blades 107 is fixedly connected to the connecting ring 105.

[0037] During the pre-dispersion process, the motor 303 can be turned on, and the motor 303 drives the second pulley 302 and the first pulley 3 to rotate, thereby driving the rotating shaft 203 to rotate. The rotation of the rotating shaft 203 drives the rotation of the first gear 2, the second gear 201 and the third gear 202, thereby driving the stirring shaft 101 and the connecting ring 105 on the stirring shaft 101 to rotate, and at the same time drives the stirring blade 107 to rotate to achieve stirring. During the stirring process, the compounding agent inside the distribution pipe 103 is discharged along the feed port 104 to realize the operation of stirring and distributing the materials, thereby achieving the effect of pre-dispersion.

[0038] The rotating shaft 203 passes through the mixing box 1 and is fixedly connected to the first pulley 3 at one end. The outer surface of the first pulley 3 abuts the belt 301, and the other end of the belt 301 abuts the second pulley 302. The movable end of the second pulley 302 is fixedly connected to the motor 303.

[0039] The rotating shaft 203 passes through the mixing box 1 and the first pulley 3 fixedly connected at the other end is used to drive the rotating shaft 203 to rotate. The belt 301 abutting the outer surface of the first pulley 3 is used to connect the second pulley 302. The second pulley 302 can drive the belt 301 to rotate through the drive of the motor 303 and then drive the first pulley 3 to rotate.

[0040] The outer surface of the rotating shaft 203 is fixedly connected to a limit ring 4 , the lower surface of the limit ring 4 is fixedly connected to a support frame 401 , and the inner bottom of the support frame 401 is fixedly connected to a material distribution box 402 .

[0041] The limiting ring 4 fixedly connected to the outer surface of the rotating shaft 203 is used to limit the rotating shaft 203 to prevent it from detaching during rotation. The support frame 401 fixedly connected to the lower surface of the limiting ring 4 is used to support the stirring device, and the distribution box 402 fixedly connected to the bottom of the support frame 401 is used to store the compounding agent.

[0042] The side of the distribution box 402 is connected to a material delivery pipe 5, and the other end of the material delivery pipe 5 is connected to a connecting ball 501. A telescopic tube 502 is hinged on the outer surface of the connecting ball 501. The other end of the telescopic tube 502 passes through the mixing box 1 and is connected to the distribution pipe 103.

[0043] The feed pipe 5 connected to the side of the distribution box 402 is used to transport the compounding agent to the inside of the distribution pipe 103 through the connecting ball 501 and the telescopic tube 502 for distribution. The connecting ball 501 connected to the other end of the feed pipe 5 is used to connect the feed pipe 5 and the telescopic tube 502. The telescopic tube 502 hinged on the outer surface of the connecting tube can rotate and extend during the rotation of the distribution pipe 103, so as to realize clinkering during the mixing process.

[0044] The lower surface of the mixing box 1 is arc-shaped, and a discharge port 6 is provided on the lower surface.

[0045] The lower surface of the stirring shaft 101 is arc-shaped so that the rubber can fit into the stirring box 1 to achieve maximum stirring. The discharge port 6 provided on the lower surface is used to discharge the stirred rubber.

[0046] The end of the stirring shaft 101 away from the first pulley 3 is fixedly connected to the first gear 2. The root of the first gear 2 is meshed with the second gear 201. The root of the second gear 201 is meshed with the third gear 202. The movable end of the third gear 202 is fixedly connected to the rotating shaft 203. The gear ratios of the first gear 2, the second gear 201, and the third gear 202 decrease in multiples.

[0047] The gear ratio of the first gear 2, the second gear 201 and the third gear 202 is set to decrease in order to adjust the speed of the first gear 2 so that the stirring shaft 101 can fully absorb the rubber during rotation. In some cases, the first gear 2, the second gear 201 and the third gear 202 can adjust the speed of the stirring shaft 101 through position adjustment.

[0048] The use process of the feeding device of a rubber internal mixer provided by the utility model is as follows:

[0049] During the pre-dispersion process, the motor 303 can be turned on, and the motor 303 drives the second pulley 302 and the first pulley 3 to rotate, thereby driving the rotating shaft 203 to rotate. The rotation of the rotating shaft 203 drives the rotation of the first gear 2, the second gear 201 and the third gear 202, thereby driving the stirring shaft 101 and the connecting ring 105 on the stirring shaft 101 to rotate, and at the same time drives the stirring blade 107 to rotate to achieve stirring. During the stirring process, the compounding agent inside the distribution pipe 103 is discharged along the feed port 104 to realize the operation of stirring and distributing the materials, thereby achieving the effect of pre-dispersion.

[0050] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can mean fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0051] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present invention.

Claims

1. A feeding device for a rubber internal mixer, characterized in that: The invention comprises a mixing box (1), wherein the inner wall of the mixing box (1) is rotatably connected to a mixing shaft (101), the outer surface of the mixing shaft (101) is fixedly connected to a connecting rod (102), the other end of the connecting rod (102) is fixedly connected to a distribution pipe (103), the outer surface of the distribution pipe (103) is provided with a plurality of feed ports (104) in an annular array, the outer surface of the distribution pipe (103) is fixedly connected to a connecting ring (105), the outer surface of the connecting ring (105) is provided with a plurality of mixing blades (107) in an annular array, the mixing blades (107) are bent in a spiral shape from one end to the other end, and the middle part of the mixing blades (107) is fixedly connected to the connecting ring (105).

2. A feeding device for a rubber internal mixer according to claim 1, characterized in that: The stirring shaft (101) is fixedly connected to the first gear (2) at the end away from the first pulley (3); the first gear (2) is meshed with the second gear (201) at the tooth root; the second gear (201) is meshed with the third gear (202) at the tooth root; and the movable end of the third gear (202) is fixedly connected to the rotating shaft (203).

3. A feeding device for a rubber internal mixer according to claim 2, characterized in that: The rotating shaft (203) passes through the mixing box (1) and is fixedly connected to a first pulley (3) at one end. The outer surface of the first pulley (3) abuts against a belt (301). The other end of the belt (301) abuts against a second pulley (302). The movable end of the second pulley (302) is fixedly connected to a motor (303).

4. A feeding device for a rubber internal mixer according to claim 2, characterized in that: The outer surface of the rotating shaft (203) is fixedly connected to a limiting ring (4), the lower surface of the limiting ring (4) is fixedly connected to a support frame (401), and the inner bottom of the support frame (401) is fixedly connected to a material distribution box (402).

5. A feeding device for a rubber internal mixer according to claim 4, characterized in that: The side of the material distribution box (402) is connected to a material delivery pipe (5), the other end of the material delivery pipe (5) is connected to a connecting ball (501), the outer surface of the connecting ball (501) is hinged with a telescopic tube (502), and the other end of the telescopic tube (502) passes through the mixing box (1) and is connected to the material distribution pipe (103).

6. A feeding device for a rubber internal mixer according to claim 1, characterized in that: The lower surface of the mixing box (1) is arc-shaped, and a discharge port (6) is provided on the lower surface.

7. A feeding device for a rubber internal mixer according to claim 2, characterized in that: The gear ratios of the first gear (2), the second gear (201) and the third gear (202) decrease exponentially.

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