A two-roll mill and a baffle for adjusting the discharge width thereof.

Abstract

This utility model discloses a two-roll mill and a baffle for adjusting the discharge width. The baffle includes a main plate and two movable plates disposed on both sides of the main plate. The main plate is a T-shaped plate, with grooves on both sides of the vertical portion of the T-shaped plate. One side of the movable plate is slidably connected to the groove, and the other side has an arc surface with a radius of curvature adapted to the roller surface. A spring connects the main plate and the movable plate. The two-roll mill has two baffles, which are positioned opposite each other above two rollers. The baffles of this utility model can be adaptively adjusted according to the roller spacing, ensuring that both sides are always in close contact with the roller surface, and the discharge width of the two-roll mill can be adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of open mill equipment, specifically to an open mill and a baffle for adjusting the discharge width. Background Technology

[0002] A two-roll mill, short for open mixing mill, is a type of rubber processing equipment mainly used for plasticizing, mixing, hot refining, sheeting, and feeding of rubber. The two-roll mill mainly consists of a frame, rollers, a drive system, and a pitch adjustment device. Its working parts are two horizontally arranged rollers, generally of the same size, which rotate relative to each other at different speeds driven by the drive system. Raw rubber or rubber compound is drawn into the gap between the two rollers as they rotate, undergoing strong shearing action to achieve plasticizing or mixing. The roller on the operator's side is called the front roller, which can be moved horizontally back and forth manually or electrically via the pitch adjustment device to adjust the roller gap and thus change the thickness of the formed rubber. The rear roller is fixed and cannot be moved forward or backward.

[0003] In addition to adjusting the rubber thickness, some open mills have two opposing baffles above the rollers. By adjusting the distance between the two baffles, the width of the rubber extrusion molding can be changed. However, to prevent the rubber from flowing out from both ends of the rollers, the baffles should be as close to the rollers as possible. If the distance between the two rollers changes, baffles of different sizes need to be replaced, which is not only cumbersome to operate, but also requires the preparation of multiple baffles, resulting in high costs. Utility Model Content

[0004] This utility model provides an open mill and a baffle for adjusting the discharge width. The baffle can be adjusted adaptively according to the roller spacing to ensure that both sides are always in close contact with the roller surface, and the open mill can adjust the discharge width.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A baffle for adjusting the discharge width of an open mill includes a main plate and two movable plates disposed on both sides of the main plate. The main plate is a T-shaped plate with grooves on both sides of the vertical part of the T-shaped plate. One side of the movable plate is slidably connected in the groove, and the other side has an arc surface with the radius of curvature of the arc surface adapted to the surface of the roller. A spring connects the main plate and the movable plate.

[0007] Preferably, the arc surface is provided with a plurality of balls that roll in contact with the roller surface.

[0008] Preferably, the bottom of the horizontal portion of the T-shaped plate is provided with a sliding groove, which is connected to the groove, and the upper end of the movable plate is slidably connected in the sliding groove.

[0009] Furthermore, a groove is provided on the side of the movable plate near the main board.

[0010] Furthermore, the two ends of the spring are respectively connected to groove one and groove two.

[0011] An open mill is equipped with the aforementioned baffles, wherein there are two baffles arranged opposite each other above two rollers.

[0012] Furthermore, a horizontal guide rail is provided above the baffle, the horizontal guide rail is parallel to the axis of the roller, the two ends of the horizontal guide rail are fixed on the frame, and the upper end of the main board is slidably connected to the horizontal guide rail.

[0013] Preferably, a screw is installed on the horizontal guide rail, and the screw has two sections of thread, left and right. The left and right sections of thread have opposite directions of rotation and the same pitch. The two baffles are respectively connected to the left and right sections of thread. One end of the screw is connected to a stepper motor, and the stepper motor is installed on the horizontal guide rail.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The baffle of this utility model is set above the roller and between the gap. The width of the baffle is adjusted by the sliding cooperation between the main plate and the movable plate. The main plate and the movable plate are elastically connected, which can adapt well to the change of roller gap. The arc surface of the movable plate is always in contact with the roller surface. The horizontal guide rail can easily adjust the distance between the two baffles. When the open mill is running, the rubber material is well confined between the two baffles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the baffle structure;

[0018] Figure 2 This is a schematic diagram of the structure of the roller and the baffle;

[0019] Figure 3 This is a schematic diagram of the structure of the baffle and the open mill;

[0020] In the diagram: 1-Main board, 2-Moving plate, 3-Groove 1, 4-Spring, 5-Ball bearing, 6-Slide groove, 7-Groove 2, 8-Roller, 9-Horizontal guide rail, 10-Frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0023] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] like Figure 1-2 As shown, a baffle for adjusting the discharge width of an open mill includes a main plate 1 and two movable plates 2 disposed on both sides of the main plate 1. The main plate 1 is a T-shaped plate, with grooves 3 on both sides of the vertical portion of the T-shaped plate. One side of the movable plate 2 is slidably connected to the groove 3, and the side of the movable plate 2 closest to the main plate 1 has a groove 7. Two ends of a spring 4 are respectively connected to the grooves 3 and 7. The bottom of the horizontal portion of the T-shaped plate has a groove 6, which communicates with the groove 3. The upper end of the movable plate 2 is slidably connected to the groove 6. The other side of the movable plate 2 has an arc surface, the radius of curvature of which is adapted to the surface of the roller 8. Preferably, multiple ball bearings 5 ​​are provided on the arc surface to roll in contact with the surface of the roller 8, which can reduce the friction between the baffle and the roller 8 when the baffle moves along the roller 8 to adjust the discharge width.

[0025] like Figure 3As shown, an open mill is equipped with the aforementioned baffles. There are two baffles, positioned opposite each other above two rollers 8. A horizontal guide rail 9 is located above the baffles, parallel to the axis of the rollers 8. Both ends of the horizontal guide rail 9 are fixed to the frame 10. The upper end of the main board 1 is slidably connected to the horizontal guide rail 9. The baffles can move along the horizontal guide rail 9. By adjusting the distance between the two baffles, the width of the formed rubber compound can be changed. Preferably, a screw is installed on the horizontal guide rail 9. The screw has left and right threads with opposite directions and the same pitch. The two baffles are respectively connected to the left and right threads. One end of the screw is connected to a stepper motor, which is mounted on the horizontal guide rail 9. The stepper motor drives the baffles to move more precisely.

[0026] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A baffle for opening mill discharge width adjustment, characterized by: Includes a main board (1) and two movable plates (2) set on both sides of the main board (1). The main board (1) is a T-shaped plate. The vertical part of the T-shaped plate has grooves (3) on both sides. One side of the movable plate (2) is slidably connected in the groove (3), and the other side has an arc surface. The radius of curvature of the arc surface is adapted to the surface of the roller (8). A spring (4) connects the main board (1) and the movable plate (2).

2. The baffle for adjusting the discharge width of an open mill according to claim 1, characterized in that: Multiple balls (5) are provided on the arc surface to roll into contact with the surface of the roller (8).

3. The baffle for adjusting the discharge width of an open mill according to claim 1, characterized in that: The bottom of the horizontal part of the T-shaped plate is provided with a sliding groove (6), which is connected to the groove (3). The upper end of the movable plate (2) is slidably connected in the sliding groove (6).

4. The baffle for adjusting the discharge width of an open mill according to claim 1, characterized in that: The movable plate (2) has a groove 2 (7) on the side near the main plate (1).

5. The baffle for adjusting the discharge width of an open mill according to claim 4, characterized in that: The two ends of the spring (4) are respectively connected to groove one (3) and groove two (7).

6. A two-roll mill equipped with the baffle according to any one of claims 1-5, characterized in that: There are two baffles, which are arranged opposite each other above the two rollers (8).

7. The open mill according to claim 6, characterized in that: A horizontal guide rail (9) is provided above the baffle. The horizontal guide rail (9) is parallel to the axis of the roller (8). Both ends of the horizontal guide rail (9) are fixed on the frame (10). The upper end of the main board (1) is slidably connected to the horizontal guide rail (9).

8. The open mill according to claim 7, characterized in that: A screw is installed on the horizontal guide rail (9). The screw has two sections of threads, left and right. The left and right sections of threads have opposite directions and the same pitch. The two baffles are connected to the left and right sections of threads respectively. One end of the screw is connected to a stepper motor, which is installed on the horizontal guide rail (9).

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