Automatic feeding device for rubber mixing mill

Abstract

The utility model discloses an automatic feeding device of rubber internal mixer, including machine body and feeding device, the top of machine body is equipped with the feed hopper, and the feeding device is equipped with the cover body, and the cover body covers the top of feed hopper, and the left side of cover body is equipped with the first cavity, and the first cavity and the one side of cover body are equipped with the second opening, and the second opening is equipped with the baffle, and the top left side of cover body is equipped with the lifting cylinder, and the lifting cylinder is connected with the baffle, and the top right side of cover body is equipped with the second cavity, and the bottom of second cavity is equipped with the water pipe, and the water pipe is equipped with the on-off valve. The utility model discloses through the top of machine body feed hopper and adds the cover body, and one side of cover body sets up the first cavity, and the first cavity and cover body are equipped with the baffle, and through the cylinder, the automatic feeding of solid additive is realized by up and down lifting on-off, and the top right side of cover body is equipped with the second cavity, and the bottom of second cavity sets up the water pipe and is equipped with the on-off valve, and the automatic feeding of liquid additive is realized, and the feeding process does not need manual intervention, can improve the quality of rubber preparation, is suitable for promotion.

Description

Technical Field

[0001] This utility model relates to the field of rubber processing equipment technology, and more specifically to an automatic feeding device for a rubber internal mixer. Background Technology

[0002] A closed-type rubber mixing mill, also known as an internal mixer, is mainly used for the plasticizing and mixing of rubber. It is a machine with a pair of rotors of a specific shape that rotate relative to each other, which intermittently plasticizes and mixes polymer materials in a closed state with adjustable temperature and pressure. The top of the internal mixer is usually equipped with a hopper for feeding materials into the rubber internal mixer. During the internal mixing process of rubber, different raw materials need to be added at different times, including the main raw material: raw rubber, as well as solid softeners, activators, fillers, carbon black, and liquid softeners. Existing feeding methods mostly rely on manual addition, which is time-consuming, labor-intensive, and requires constant addition of various additives. This lack of automation also negatively impacts rubber refining and quality. To address these issues, the inventor proposes an automatic feeding device for a rubber internal mixer. This device adds an openable and closable cavity to the feed hopper, containing the powders and liquids required for rubber refining. The device automatically adds the required quantities via an open / close valve, reducing manual operation, improving automation, and ultimately enhancing the quality of the refining process.

[0003] To achieve automatic and precise feeding in rubber internal mixers and improve the quality of rubber processing, Chinese Patent (Authorization Announcement No.: CN217862207U) discloses a feeding mechanism for a rubber internal mixer. This utility model includes a base, a rubber internal mixer, and a feeding hopper. The rubber internal mixer is connected to the surface of the base, and the feeding hopper is located on the outside of the rubber internal mixer. The feeding mechanism further includes: two sets of support components, respectively connected to the two sides of the outside of the base, with a first support plate connected to the outside of each support component; a weighing component, installed on the surface of the first support plate, with a second support plate connected to the outside of the weighing component; and a material holding component connected to the outside of both second support plates. This utility model, by setting up the first support plate, second support plate, material holding component, weighing component, movable component, and rotating component, can accurately and conveniently control the amount of material to be fed into the feeding hopper, thereby facilitating the rubber internal mixer to perform rubber processing operations with an appropriate amount of material.

[0004] The solution still has some shortcomings in application. Since various raw materials and additives, including solid and liquid, need to be added during rubber mixing, and all raw materials and additives not only require precise dosage control, but also need to be added as simultaneously as possible to shorten the long opening time of the top plug, so as not to affect the quality and efficiency of the mixing. Therefore, the structure of the automatic feeding device needs to be improved to enable it to achieve high-efficiency and precise automatic feeding, reduce manual intervention, and improve the quality of rubber mixing. Utility Model Content

[0005] This utility model discloses an automatic feeding device for a rubber internal mixer, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An automatic feeding device for a rubber internal mixer includes a machine body and a feeding device. The machine body is an integrally formed structure with a feeding hopper at the top. The feeding device has a cover that fits over the top of the feeding hopper and has a first opening on its rear side. The left side of the cover has several first cavities. The first cavities and one side of the cover have a second opening with a baffle. The top left side of the cover has several lifting cylinders with upward-facing drive ends connected to the baffle. The top right side of the cover has several second cavities with water pipes at the bottom. The water pipes extend downward to the bottom of the feeding hopper and have an opening / closing valve at the top.

[0008] Furthermore, the machine body includes an upper top bolt rod, an upper top bolt, a mixing chamber, a rotor, a lower top bolt, and a discharge gate.

[0009] Furthermore, the first opening is adapted to be fitted with a conveyor belt for conveying raw rubber.

[0010] Furthermore, the first cavity has an inverted trapezoidal structure, and an oscillator is installed at the bottom of the inverted trapezoidal structure.

[0011] Furthermore, an upward-opening frame is provided between the first cavity and the cover, and the baffle is adapted to be embedded in the frame and can move up and down along the frame.

[0012] Furthermore, a connecting crossbar is provided between the baffle and the lifting cylinder.

[0013] Furthermore, the first cavity is a powder cavity, into which solid additives can be added, and the second cavity is a liquid cavity, into which liquid additives can be added.

[0014] Furthermore, sensors are installed on the lower inner sides of both the first cavity and the second cavity.

[0015] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0016] This invention firstly adds a feeding device to the top of the machine's feed hopper. The feeding device's cover is installed on the top of the feed hopper, and several first cavities are arranged on one side of the cover. A second opening is provided on one side of each first cavity and cover, and a baffle is provided at each second opening. The baffle is opened and closed by a cylinder that can move up and down. This design enables automatic feeding of solid additives, and precise feeding of solid additives can be achieved by calculating the opening and closing time of the baffle. Next, several second cavities are located on the top right side of the cover. A water pipe is located at the bottom of each second cavity, extending to the bottom of the feed hopper and having an opening at the top. The valve is closed, enabling automatic feeding of liquid additives. Similarly, the precise feeding of liquid additives can be achieved by calculating the opening and closing time of the valve. Sensors are installed at the bottom of both the first and second chambers to remind staff to add additives when they are insufficient. Finally, a first opening and a conveyor belt are provided on the rear side of the cover, through which the main raw material, raw rubber, can be transported. The feeding process of raw materials and additives requires no manual intervention, and the dosage is accurate and highly automated. This utility model has a novel structure and ingenious design, which can effectively improve the efficiency and quality of rubber refining and is suitable for widespread application. Attached Figure Description

[0017] Figure 1 This is a side view of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the feeding device of this utility model.

[0019] Figure 3 This is a top view of the feeding device of this utility model. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3As shown, an automatic feeding device for a rubber internal mixer includes a machine body 1 and a feeding device 2. The machine body 1 is an integrally formed structure and has a feeding hopper 3 on the top. The feeding device 2 has a cover 4, which is adapted to cover the top of the feeding hopper 3 and has a first opening 5 on the rear side. The left side of the cover 4 has a plurality of first cavities 6. The first cavities 6 and one side of the cover 4 have a second opening, which has a baffle 7. The top left side of the cover 4 is equipped with a plurality of lifting cylinders 8. The driving end of the lifting cylinders 8 is upward and connected to the baffle 7. The top right side of the cover 4 is equipped with a plurality of second cavities 9. The bottom of the second cavity 9 is equipped with a water pipe 10. The water pipe 10 extends downward to the bottom of the feeding hopper 3 and has an opening and closing valve 11 installed at the top.

[0022] Furthermore, the machine body 1 includes an upper top bolt rod 12, an upper top bolt 13, a mixing chamber 14, a rotor 15, a lower top bolt 16, and a discharge gate 17.

[0023] Furthermore, the first opening 5 is adapted to be equipped with a conveyor belt 18 for conveying raw rubber.

[0024] Furthermore, the first cavity 6 has an inverted trapezoidal structure, and an oscillator 19 is installed at the bottom of the inverted trapezoidal structure.

[0025] Furthermore, an upward-opening frame 20 is provided between the first cavity 6 and the cover 4, and the baffle 7 is adaptedly embedded in the frame 20 and can move up and down along the frame 20.

[0026] Furthermore, a connecting crossbar 21 is provided between the baffle 7 and the lifting cylinder 8.

[0027] Furthermore, the first cavity 6 is a powder cavity, into which solid additives can be added, and the second cavity 9 is a liquid cavity, into which liquid additives can be added.

[0028] Furthermore, sensors 22 are installed on the lower inner sides of both the first cavity 6 and the second cavity 9.

[0029] Example: First, start the machine body 1 for preheating. After the preheating time is up, lift the top bolt 13 by pulling the top bolt lever 12. The cut raw rubber is conveyed by the conveyor belt 18 and enters the feed hopper 3 through the first opening 5 on the rear side of the cover 4. Finally, it enters the mixing chamber 14. Close the top bolt 13 and pressurize and mix the raw rubber for 1 minute for plasticization. Then, lift the top bolt 13 and open the on / off valve 11 on the water pipe 10. The liquid additive (solid softener) in one of the second chambers flows through the water pipe 10 to the bottom of the feed hopper 3 and enters the mixing chamber 14. Mix for 1.5 minutes. Then, lift the top bolt 13 again and drive the lifting cylinder 8. The baffle 7 rises and opens, allowing the solid additive (carbon black) in one of the first chambers to enter the feed hopper 3 through the second opening and finally enter the mixing chamber 14. The lifting and lowering time of the baffle 7 can be calculated to achieve precise feeding of the additive. After the set time is reached, the baffle 7 is lowered and closed by the lifting cylinder 8. Mixing takes 3 minutes. Finally, the top bolt 13 is raised again, and the liquid additive (liquid softener) in one of the second chambers 9 flows through the water pipe 10 to the bottom of the feed hopper 3 and finally enters the mixing chamber 14. It is then processed for another 1.5 minutes to complete the rubber mixing. After the rubber mixing is completed, the bottom bolt 16 is opened and the material is discharged through the discharge door 17.

[0030] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0031] This invention firstly adds a feeding device to the top of the machine's feed hopper. The feeding device's cover is installed on the top of the feed hopper, and several first cavities are arranged on one side of the cover. A second opening is provided on one side of each first cavity and cover, and a baffle is provided at each second opening. The baffle is opened and closed by a cylinder that can move up and down. This design enables automatic feeding of solid additives, and precise feeding of solid additives can be achieved by calculating the opening and closing time of the baffle. Next, several second cavities are located on the top right side of the cover. A water pipe is located at the bottom of each second cavity, extending to the bottom of the feed hopper and having an opening at the top. The valve is closed, enabling automatic feeding of liquid additives. Similarly, the precise feeding of liquid additives can be achieved by calculating the opening and closing time of the valve. Sensors are installed at the bottom of both the first and second chambers to remind staff to add additives when they are insufficient. Finally, a first opening and a conveyor belt are provided on the rear side of the cover, through which the main raw material, raw rubber, can be transported. The feeding process of raw materials and additives requires no manual intervention, and the dosage is accurate and highly automated. This utility model has a novel structure and ingenious design, which can effectively improve the efficiency and quality of rubber refining and is suitable for widespread application.

[0032] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. An automatic feeding device for a rubber internal mixer, characterized in that: The device includes a machine body and a feeding device. The machine body is an integrally formed structure with a feeding hopper at the top. The feeding device has a cover that fits over the top of the feeding hopper and has a first opening on the rear side. The left side of the cover has several first cavities. The first cavities and one side of the cover have a second opening with a baffle. The top left side of the cover has several lifting cylinders with their driving ends pointing upward and connected to the baffle. The top right side of the cover has several second cavities with water pipes at the bottom. The water pipes extend downward to the bottom of the feeding hopper and have an opening and closing valve at the top.

2. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: The machine body includes an upper top bolt tie rod, an upper top bolt, a mixing chamber, a rotor, a lower top bolt, and a discharge gate.

3. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: The first opening is adapted to be fitted with a conveyor belt for conveying raw rubber.

4. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: The first cavity has an inverted trapezoidal structure, and an oscillator is installed at the bottom of the inverted trapezoidal structure.

5. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: A frame with an upward opening is provided between the first cavity and the cover, and the baffle is adapted to be embedded in the frame and can move up and down along the frame.

6. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: A connecting crossbar is provided between the baffle and the lifting cylinder.

7. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: The first cavity is a powder cavity, into which solid additives can be added; the second cavity is a liquid cavity, into which liquid additives can be added.

8. The automatic feeding device for a rubber internal mixer according to claim 1, characterized in that: Sensors are installed on the lower inner side of both the first cavity and the second cavity.

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