Feeding device of internal mixer for rubber

Abstract

The utility model discloses a feeding device of an internal mixer for rubber, which comprises a fixed seat and a feeding box, and the fixed seat is provided with a feeding port; an electric butterfly valve is installed at a discharging port of the feeding box, a blocking cover is installed at a feeding port of the feeding box, motor bases are arranged at the two ends of the feeding box, rotating motors are fixedly installed on the motor bases, and output shafts of the rotating motors penetrate through the motor bases and are fixedly connected with the feeding box through connecting discs. Two lifting structures used for driving the motor base to ascend and descend respectively are installed on the fixing base, metal needles arranged in rows are fixedly installed on the feeding box right opposite to the feeding port, and the metal needles are in a conical shape. The feeding device of the internal mixer for rubber has the advantages of being capable of reducing raised dust, simple in structure and high in automation degree.

Description

Technical Field

[0001] This utility model relates to the technical field of internal mixers for rubber, and in particular to a feeding device for an internal mixer for rubber. 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. An internal mixer is a machine equipped with a pair of rotors of a specific shape that rotate relative to each other, intermittently plasticizing and mixing polymer materials under adjustable temperature and pressure in a closed environment. It mainly consists of a mixing chamber, rotors, rotor sealing devices, feeding and pressing devices, unloading devices, transmission devices, and a base.

[0003] When feeding materials into the internal mixer, if the raw materials contain powder, the powder is poured into the mixer manually after the packaging bag is opened. The powder will float to the top, resulting in a lot of dust on the production site. This not only wastes raw materials, but also causes certain injuries to the operators due to the high temperature when the internal mixer is working. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a feeding device for a rubber internal mixer that can reduce dust, has a simple structure, and a high degree of automation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A feeding device for a rubber internal mixer includes a fixed base and a feeding box. The fixed base has a feeding port. An electric butterfly valve is installed at the discharge port of the feeding box, and a cover is installed at the inlet of the feeding box. Motor mounts are provided at both ends of the feeding box, and a rotary motor is fixedly installed on the motor mount. The output shaft of the rotary motor passes through the motor mount and is fixedly connected to the feeding box through a connecting plate. Two lifting structures are installed on the fixed base for driving the motor mounts to move up and down. A row of conical metal needles are fixedly installed on the feeding box opposite the inlet.

[0007] In this way, bagged raw materials containing powder are placed into the feeding box through the inlet. A metal needle is inserted into the packaging bag, and a person uses a blade to cut open the packaging bag near the outlet. The cover is then closed. Afterward, the rotating motor drives the feeding box to rotate 90 degrees so that the outlet is directly opposite the feeding port. The lifting structure drives the feeding box to descend, so that the outlet is inserted into the feeding port. Then, the electric butterfly valve opens, and the powder reaches the outlet from the opening and enters the internal mixer from the feeding port. This reduces dust, better ensures the full utilization of raw materials and the safety of operators, and improves the degree of automation.

[0008] The lifting structure includes a column fixedly installed on a fixed base. The column has an installation groove, and a screw is rotatably installed in the installation groove. A servo motor is fixedly installed at the upper end of the column. The output shaft of the servo motor passes through the column and is fixedly connected to the upper end of the screw. A nut block is threaded onto the screw. The nut block is fixedly connected to the motor base, and the motor base slides against the column.

[0009] The fixed base has guide posts fixedly installed on both sides, and guide blocks are slidably fitted on the guide posts. The guide blocks are fixedly connected to the motor base.

[0010] A support bracket is fixedly installed on the fixed base.

[0011] One end of the cover is connected to the feed box via a hinge, and the other end of the cover is rotatably fitted with a latch. The latch has a through hole. A locking ring is fixedly installed on the feed box. The latch is fastened to the outside of the locking ring, and a door lock is hung on the locking ring.

[0012] In summary, the feeding device of this rubber internal mixer has the advantages of reducing dust, simple structure, and high degree of automation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the feeding device of a rubber internal mixer according to the present invention.

[0014] Figure 2 This is a schematic diagram of the feed box.

[0015] Figure 3 This is a schematic diagram of the feeding device of a rubber internal mixer according to the present invention, without the feeding box. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0017] like Figure 1-3As shown, a feeding device for a rubber internal mixer includes a fixed base 1 and a feeding box 2. The fixed base has a feeding port 3. An electric butterfly valve 4 is installed at the discharge port of the feeding box, and a baffle 5 is installed at the inlet of the feeding box. Motor seats 6 are provided at both ends of the feeding box, and a rotary motor 7 is fixedly installed on the motor seats. The output shaft of the rotary motor passes through the motor seats and is fixedly connected to the feeding box through a connecting plate 8. Two lifting structures are installed on the fixed base for driving the motor seats to move up and down. A row of conical metal needles 9 are fixedly installed on the feeding box opposite the inlet.

[0018] In this way, bagged raw materials containing powder are placed into the feeding box through the inlet. A metal needle is inserted into the packaging bag, and a person uses a blade to cut open the packaging bag near the outlet. The cover is then closed. Afterward, the rotating motor drives the feeding box to rotate 90 degrees so that the outlet is directly opposite the feeding port. The lifting structure drives the feeding box to descend, so that the outlet is inserted into the feeding port. Then, the electric butterfly valve opens, and the powder reaches the outlet from the opening and enters the internal mixer from the feeding port. This reduces dust, better ensures the full utilization of raw materials and the safety of operators, and improves the degree of automation.

[0019] After a certain period of time following the addition of powder, the feeding device resets, facilitating the next addition of materials. Liquid raw materials can also be added through the feeding port.

[0020] In implementation, the lifting structure includes a column 10 fixedly mounted on a fixed base. The column has a mounting groove, in which a screw 11 is rotatably mounted. A servo motor 12 is fixedly mounted at the upper end of the column. The output shaft of the servo motor passes through the column and is fixedly connected to the upper end of the screw. A nut block is threaded onto the screw, and the nut block is fixedly connected to the motor base. The motor base slides against the column. The servo motor drives the screw to rotate, which in turn drives the motor base to move vertically via the nut block.

[0021] In implementation, guide posts 13 are fixedly installed on both sides of the fixed base, and guide blocks 14 are slidably fitted on the guide posts. The guide blocks are fixedly connected to the motor base. This facilitates guiding the movement of the motor base. The axis of the guide post is parallel to the axis of the screw.

[0022] During implementation, a support bracket 15 is fixedly installed on the fixed base to facilitate the support of the feed box in a horizontal position.

[0023] In practice, one end of the baffle is connected to the feeding box via a hinge, and the other end of the baffle is rotatably fitted with a latch. The latch has a through hole, and a locking ring is fixedly installed on the feeding box. The latch is engaged with the outside of the locking ring, and a door lock is hung on the locking ring. After the bagged material is placed in the feeding box, the baffle is rotated to engage the latch with the outside of the locking ring and hang the door lock on the locking ring, preventing the baffle from swinging during the rotation of the feeding box and better preventing dust.

[0024] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A feeding device for a rubber internal mixer, characterized in that, It includes a fixed base (1) and a feeding box (2), wherein the fixed base is provided with a feeding port (3); An electric butterfly valve (4) is installed at the outlet of the feeding box, a baffle (5) is installed at the inlet of the feeding box, motor seats (6) are provided at both ends of the feeding box, a rotary motor (7) is fixedly installed on the motor seat, the output shaft of the rotary motor passes through the motor seat and is fixedly connected to the feeding box through a connecting plate (8), two lifting structures are installed on the fixed seat to drive the motor seat to lift and lower, and a row of metal needles (9) are fixedly installed in front of the inlet of the feeding box. The metal needles are conical.

2. The feeding device for a rubber internal mixer according to claim 1, characterized in that, The lifting structure includes a column (10) fixedly installed on a fixed base. The column has an installation groove, and a screw (11) is rotatably installed in the installation groove. A servo motor (12) is fixedly installed at the upper end of the column. The output shaft of the servo motor passes through the column and is fixedly connected to the upper end of the screw. A nut block is threaded onto the screw. The nut block is fixedly connected to the motor base. The motor base slides against the column.

3. The feeding device for a rubber internal mixer according to claim 2, characterized in that, Guide posts (13) are fixedly installed on both sides of the fixed base, and guide blocks (14) are slidably fitted on the guide posts. The guide blocks are fixedly connected to the motor base.

4. The feeding device for a rubber internal mixer according to claim 3, characterized in that, A support bracket (15) is fixedly installed on the fixed base.

5. The feeding device for a rubber internal mixer according to claim 4, characterized in that, One end of the cover is connected to the feed box via a hinge, and the other end of the cover is rotatably fitted with a buckle. The buckle has a through hole. A locking ring is fixedly installed on the feed box. The buckle is fastened to the outside of the locking ring, and a door lock is hung on the locking ring.

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