Automatic rubber tamping device of open type rubber mixing mill

Abstract

The utility model relates to the technical field of rubber ramming of rubber mixing mills, in particular to an automatic rubber ramming device of an open type rubber mixing mill, which comprises a base, a first motor is fixedly connected to the side wall of the base, a lead screw is fixedly connected to the output end of the first motor, and one end, far away from the first motor, of the lead screw is movably connected with the inner wall of the base. A movable frame is movably connected to the lead screw, a movable cavity is formed in the movable frame, a blade cavity is formed in the movable frame and communicates with the movable cavity, a movable plate is movably connected to the interior of the movable cavity, a blade is fixedly connected to the surface of the movable plate, and the blade is located in the blade cavity. A spring is fixedly connected to the interior of the moving cavity, and one end of the spring is fixedly connected with the outer surface of the moving plate. When the open type rubber mixing mill works, the rubber can be automatically pounded.

Description

Technical Field

[0001] This utility model relates to the field of rubber mixing machine tamping, and in particular to an automatic tamping device for an open rubber mixing machine. Background Technology

[0002] The tamping of rubber in an open mixing mill is the core step in the mixing process. Through mechanical shearing, folding and cutting, the rubber compound is evenly dispersed. The rubber compound flows in a laminar flow between the rollers of the open mill. It is difficult to completely disperse the compounding agents by extrusion alone. Tamping is necessary to change the flow direction of the rubber compound and increase interface renewal. For powders such as carbon black and zinc oxide, as well as oils, tamping accelerates their wetting and distribution and avoids agglomeration.

[0003] Chinese utility model patent CN202321169914.1 discloses an automatic tamping device for an open-type rubber mixing mill, including a base with two supports fixedly mounted on it. A top plate is fixedly mounted on both supports. Two motors are fixedly mounted on one of the supports, and a rotating roller is fixedly mounted on the drive end of each motor. A support mechanism is installed between the rotating roller and the other support. Two electric push rods are fixedly mounted on the top plate, and a tamping plate that cooperates with the two rotating rollers is fixedly mounted on both push rods. The advantages are: by setting up the electric push rods and the tamping plate, the material piled between the two rotating rollers can be compressed, causing the material to be drawn into the space between the two rollers, eliminating the need for manual tamping with tools, reducing labor intensity and safety risks. It can also scrape off material adhering to the tamping plate.

[0004] However, the aforementioned automatic tamping device for open-type rubber mixing mills achieves a shearing effect by squeezing the material with a tamping plate in one go. This method causes the tamping plate to come into contact with a large amount of material at one time, and it will be subjected to a large reaction force when the roller rotates, which can easily lead to damage to the tamping plate. This is not conducive to the automatic tamping of open-type rubber mixing mills. Utility Model Content

[0005] In view of this, the present invention provides an automatic rubber mixing device for an open rubber mixing mill, the main technical problem to be solved is: to realize automatic rubber mixing when the open rubber mixing mill is working.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic rubber mixing device for an open-type rubber mixing mill, comprising a base, a first motor fixedly connected to the side wall of the base, a lead screw fixedly connected to the output end of the first motor, the end of the lead screw away from the first motor being movably connected to the inner wall of the base, a movable frame movably connected to the lead screw, a movable cavity being formed inside the movable frame, a blade cavity being formed inside the movable frame and communicating with the movable cavity, a movable plate being movably connected inside the movable cavity, a blade being fixedly connected to the surface of the movable plate, the blade being located inside the blade cavity, a spring being fixedly connected inside the movable cavity, and one end of the spring being fixedly connected to the outer surface of the movable plate.

[0007] By adopting the above technical solution, the first motor drives the lead screw to rotate, and the fixed rod enables the moving frame to reciprocate on the lead screw. When the moving frame moves, it drives the blade to move. By moving the blade on the material being extruded, the material can be mechanically sheared. Moreover, the contact area between the blade and the material at one time is small, and the reaction force it bears is small. It can shear the material while the extrusion roller is rotating, which increases the safety of rubber mixing machine during rubber mixing. At the same time, under the action of the spring, the blade can move within a certain range to prevent the material from sticking to the blade and the blade from breaking due to being unable to move.

[0008] As a further description of the above technical solution:

[0009] A fixed rod is fixedly connected inside the base, and the movable frame is movably mounted on the fixed rod.

[0010] By adopting the above technical solution, the movable frame is assisted by a fixed rod, enabling it to move back and forth on the lead screw when the lead screw rotates.

[0011] As a further description of the above technical solution:

[0012] The movable frame has an auxiliary cavity inside, which is connected to the interior of the movable cavity.

[0013] By adopting the above technical solution, the installation of the auxiliary board is facilitated.

[0014] As a further description of the above technical solution:

[0015] An auxiliary plate is fixedly connected to the side wall of the movable plate, and the auxiliary plate is located inside the auxiliary cavity.

[0016] By adopting the above technical solution, the stability of the blade installation can be increased by installing the auxiliary plate inside the auxiliary cavity, which facilitates the blade to cut the material.

[0017] As a further description of the above technical solution:

[0018] The top of the mobile frame is equipped with an end cap, and the surface of the end cap is provided with a threaded hole. An adjusting screw is threaded into the inside of the threaded hole, and one end of the adjusting screw is movably connected to the surface of the mobile frame.

[0019] By adopting the above technical solution, the length of the adjusting screw inside the moving frame can be changed by rotating the adjusting screw, thereby adjusting the length of the blade extending out of the blade cavity, which facilitates the blade to cut the material.

[0020] As a further description of the above technical solution:

[0021] A second motor is fixedly connected to the outer surface of the base, and there are two second motors. The output ends of the two second motors are fixedly connected to a rotating shaft. The end of the rotating shaft away from the second motor is movably connected to the inner wall of the base. An extrusion roller is fixedly connected to the outer surface of the rotating shaft.

[0022] By adopting the above technical solution, the second motor can drive the rotating shaft to rotate, which in turn drives the extrusion roller to rotate, so that the material added between the two extrusion rollers can be extruded. The high temperature and extrusion force generated during extrusion are used to complete the rubber mixing process.

[0023] As a further description of the above technical solution:

[0024] The two extrusion rollers are arranged opposite each other, with the blade located diagonally above one of the extrusion rollers.

[0025] By adopting the above technical solution, the material is cut open by a blade, and the interface is updated to achieve the purpose of automatic mixing.

[0026] By employing the above technical solution, the automatic rubber mixing device for an open rubber mixing mill of this utility model has at least the following beneficial effects:

[0027] 1. Compared with the prior art, this open-type rubber mixing mill automatic rubber tamping device uses a first motor to drive the lead screw to rotate, and a fixed rod to allow the moving frame to reciprocate on the lead screw. When the moving frame moves, it drives the blade to move. By moving the blade over the material being extruded, the material can be mechanically sheared. The blade has a small contact area with the material at one time, and the reaction force it bears is small. It can shear the material while the extrusion roller is rotating, which increases the safety of rubber mixing mill rubber tamping. At the same time, under the action of the spring, the blade can move within a certain range to prevent the material from sticking to the blade and the blade from breaking due to being unable to move.

[0028] 2. Compared with the existing technology, this open-type rubber mixing mill automatic rubber tamping device uses springs to allow the blades to move within a certain range, preventing the material from sticking to the blades and causing the blades to break due to being unable to move. Attached Figure Description

[0029] Figure 1 This is a first-view overall structural diagram of an automatic rubber mixing device for an open rubber mixing mill proposed in this utility model.

[0030] Figure 2 This is a second-view overall structural diagram of an automatic rubber mixing device for an open rubber mixing mill proposed in this utility model.

[0031] Figure 3 This is a cross-sectional view of the internal structure of an automatic rubber mixing device for an open rubber mixing mill proposed in this utility model;

[0032] Figure 4 This utility model proposes an automatic rubber mixing device for an open rubber mixing mill. Figure 3 Enlarged view of the structure at point A in the middle.

[0033] Legend:

[0034] 1. Base; 2. First motor; 3. Lead screw; 4. Fixed rod; 5. Moving frame; 6. Moving cavity; 7. Blade cavity; 8. Auxiliary cavity; 9. Moving plate; 10. Blade; 11. Auxiliary plate; 12. Spring; 13. End cap; 14. Threaded hole; 15. Adjusting screw; 16. Second motor; 17. Rotating shaft; 18. Extrusion roller. Detailed Implementation

[0035] Reference Figure 1-4This utility model provides an automatic rubber mixing device for an open-type rubber mixing mill: It includes a base 1, a first motor 2 fixedly connected to the side wall of the base 1, a lead screw 3 fixedly connected to the output end of the first motor 2, the end of the lead screw 3 away from the first motor 2 being movably connected to the inner wall of the base 1, a movable frame 5 movably connected to the lead screw 3, a fixed rod 4 fixedly connected inside the base 1, and the movable frame 5 movably mounted on the fixed rod 4. The fixed rod 4 assists the movable frame 5, allowing it to move back and forth on the lead screw 3 when the lead screw rotates. A movable cavity 6 is formed inside the movable frame 5, and a blade cavity 7 is formed inside the movable frame 5, with the blade cavity 7 communicating with the movable cavity 6. A movable plate 9 is movably connected inside the movable cavity 6, and blades 10 are fixedly connected to the surface of the movable plate 9. Inside the blade cavity 7, a spring 12 is fixedly connected to the inside of the moving cavity 6. One end of the spring 12 is fixedly connected to the outer surface of the moving plate 9. The first motor 2 drives the lead screw 3 to rotate, which, together with the fixed rod 4, allows the moving frame 5 to reciprocate on the lead screw 3. When the moving frame 5 moves, it drives the blade 10 to move. By moving the blade 10 on the material being extruded, the material can be mechanically sheared. The blade 10 has a small contact area with the material at one time, and the reaction force it bears is small. It can shear the material when the extrusion roller 18 rotates, which increases the safety of the rubber mixing machine during rubber mixing. At the same time, under the action of the spring 12, the blade 10 can move within a certain range to prevent the material from sticking to the blade 10 and causing the blade 10 to break due to its inability to move.

[0036] The movable frame 5 has an auxiliary cavity 8 inside, which is connected to the interior of the movable cavity 6. An auxiliary plate 11 is fixedly connected to the side wall of the movable plate 9. The auxiliary plate 11 is located inside the auxiliary cavity 8. The installation of the auxiliary plate 11 inside the auxiliary cavity 8 can increase the stability of the blade 10 installation and facilitate the blade 10 to cut the material.

[0037] An end cap 13 is installed on the top of the movable frame 5. A threaded hole 14 is provided on the surface of the end cap 13. An adjusting screw 15 is threaded inside the threaded hole 14. One end of the adjusting screw 15 is movably connected to the surface of the movable frame 5. By rotating the adjusting screw 15, the length of the adjusting screw 15 inside the movable frame 5 can be changed, thereby adjusting the length of the blade 10 extending out of the blade cavity 7, so that the blade 10 can cut the material.

[0038] Two second motors 16 are fixedly connected to the outer surface of the base 1. The output ends of the two second motors 16 are fixedly connected to rotating shafts 17. The end of the rotating shaft 17 away from the second motor 16 is movably connected to the inner wall of the base 1. The outer surface of the rotating shaft 17 is fixedly connected to an extrusion roller 18. The operation of the second motor 16 can drive the rotating shaft 17 to rotate, thereby driving the extrusion roller 18 to rotate, so that the material added between the two extrusion rollers 18 can be extruded. The high temperature and extrusion force generated during extrusion are used to complete the rubber mixing operation of the material. The two extrusion rollers 18 are arranged opposite each other, and the blade 10 is located diagonally above one of the extrusion rollers 18. The blade 10 cuts the material and increases the interface to achieve the purpose of automatic rubber mixing.

[0039] Working principle: During use, the first motor 2 drives the lead screw 3 to rotate, which, together with the fixed rod 4, allows the moving frame 5 to reciprocate on the lead screw 3. When the moving frame 5 moves, it drives the blade 10 to move. By moving the blade 10 on the material being extruded, the material can be mechanically sheared. The blade 10 has a small contact area with the material at one time, and the reaction force it bears is small. It can shear the material when the extrusion roller 18 is rotating, which increases the safety of the rubber mixing machine during rubber mixing. At the same time, under the action of the spring 12, the blade 10 can move within a certain range to prevent the material from sticking to the blade 10 and causing the blade 10 to break due to its inability to move.

[0040] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic masticating device for open type masticator, comprising a base (1), characterized in that: A first motor (2) is fixedly connected to the side wall of the base (1). A lead screw (3) is fixedly connected to the output end of the first motor (2). The end of the lead screw (3) away from the first motor (2) is movably connected to the inner wall of the base (1). A movable frame (5) is movably connected to the lead screw (3). A movable cavity (6) is opened inside the movable frame (5). A blade cavity (7) is opened inside the movable frame (5), and the blade cavity (7) is connected to the movable cavity (6). A movable plate (9) is movably connected inside the movable cavity (6). A blade (10) is fixedly connected to the surface of the movable plate (9). The blade (10) is located inside the blade cavity (7). A spring (12) is fixedly connected inside the movable cavity (6). One end of the spring (12) is fixedly connected to the outer surface of the movable plate (9).

2. An automatic mastication device for an open mill according to claim 1, characterized in that: The base (1) is internally fixedly connected to a fixed rod (4), and the movable frame (5) is movably mounted on the fixed rod (4).

3. An automatic mastication device for an open mill according to claim 1, characterized in that: The movable frame (5) has an auxiliary cavity (8) inside, which is connected to the interior of the movable cavity (6).

4. An automatic mastication device for an open mill according to claim 3, characterized in that: An auxiliary plate (11) is fixedly connected to the side wall of the movable plate (9), and the auxiliary plate (11) is located inside the auxiliary cavity (8).

5. An automatic mastication device for an open mill mixer according to claim 1, characterized in that: The top of the movable frame (5) is equipped with an end cap (13), and the surface of the end cap (13) is provided with a threaded hole (14). An adjusting screw (15) is threaded inside the threaded hole (14), and one end of the adjusting screw (15) is movably connected to the surface of the movable frame (5).

6. The automatic rubber mixing device for an open-type rubber mixing mill according to claim 1, characterized in that: The outer surface of the base (1) is fixedly connected to a second motor (16), and there are two second motors (16). The output ends of the two second motors (16) are fixedly connected to a rotating shaft (17). The end of the rotating shaft (17) away from the second motor (16) is movably connected to the inner wall of the base (1). The outer surface of the rotating shaft (17) is fixedly connected to a pressing roller (18).

7. An automatic mastication device for an open mill according to claim 6, characterized in that: The two extrusion rollers (18) are arranged opposite each other, and the blade (10) is located diagonally above one of the extrusion rollers (18).

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