Open mill with protective device

Abstract

The utility model relates to the technical field of open mills, in particular to an open mill with a protection device.The open mill comprises an open mill cover, an electric roller, a movable support, a semi-wrapping rotating cover, a cleaning assembly and a distance adjusting assembly, the movable support is movably connected to the interior of the open mill cover, and one end of the electric roller is rotationally connected with the middle of the movable support; the semi-wrapping rotating cover is rotationally connected to the open mill cover and is positioned on the outer side of the electric roller; and the distance adjusting assembly is mounted on one side of the open mill cover. According to the open mill with the protection device, the semi-wrapping rotating cover is located on the outer side of the electric roller during open milling, and a normal operation space is ensured; after open milling, the electric roller is covered to form a physical barrier, so that people are prevented from mistakenly touching, tools are prevented from falling off or foreign matters are prevented from impacting the surface of the roller; the embedded inner groove structure ensures rapid alignment of the electric roller and the semi-wrapping rotating cover, mechanical interference is avoided, the flaring support plate installed on the outer side of the open mill cover can prevent the body of an operator from getting close to the gap of the electric roller, and the rolling risk is further reduced.

Description

Technical Field

[0001] This application relates to the field of open mill technology, and in particular to an open mill with a protective device. Background Technology

[0002] Open mills with protective devices are commonly used mixing equipment in industries such as rubber and plastics. Two parallel metal rollers (usually a front roller and a rear roller) shear and mix materials by rotating relative to each other. The protective devices are designed to ensure the safety of operators and prevent mechanical injuries such as entanglement and crushing.

[0003] A search revealed that CN212826224U discloses a two-roll mill with a protective device. The protective push bar is located in front of the two-roll mill body. When the operator accidentally leans forward, their body will push the protective push bar, causing the first support rod to touch the limit button, thereby reversing the motor and stopping the front and rear rollers in the shortest possible time to prevent accidents. The emergency stop switch is located at the bottom of the two-roll mill body. In case of danger, the operator can use their own reaction to stop the two-roll mill immediately, thereby protecting the operator's safety. The reset button is located in the second housing, which allows the operator to easily restart the two-roll mill after stopping.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and need to be improved: Although the above-mentioned device prevents fingers and wrists from being caught in the rollers and improves safety to a certain extent, the metal rollers are always exposed to the outside, resulting in poor protection and self-cleaning performance after the milling process. The complex environment of the factory area can easily cause deformation or damage to the surface of the metal rollers. Utility Model Content

[0005] This application provides a rolling mill with a protective device to improve the following technical problems: Although the above-mentioned device prevents fingers and wrists from being caught in the rollers and improves safety to a certain extent, the metal rollers are always exposed to the outside, resulting in poor protection and self-cleaning performance after rolling. The complex environment of the factory area can easily cause deformation or damage to the surface of the metal rollers.

[0006] This application provides a two-roll mill with a protective device, employing the following technical solution:

[0007] A milling machine with a protective device includes a milling machine cover, an electric roller, a movable support, a semi-enclosed rotating cover, a cleaning component, and a pitch adjustment component. The movable support is movably connected inside the milling machine cover. One end of the electric roller is rotatably connected to the middle of the movable support. The semi-enclosed rotating cover is rotatably connected to the milling machine cover outside the electric roller. The cleaning component is installed inside the semi-enclosed rotating cover. The pitch adjustment component is installed on one side of the milling machine cover.

[0008] The electric rollers shear and mix the material by rotating relative to each other. The open mill cover is used to support the electric rollers and the gap adjustment assembly. The gap adjustment assembly, together with the movable bracket, is used to adjust the gap between the electric rollers and control the material thickness. The semi-enclosed rotating cover is used to cover the outside of the electric rollers after the open milling process and to provide anti-smashing protection. The cleaning assembly is used to clean the adhesive material on the surface of the electric rollers.

[0009] In one feasible technical solution of this application, an embedded inner groove with a size larger than that of the electric roller is provided on one side of the semi-enclosed rotating cover, and the electric roller is inserted laterally into the interior of the semi-enclosed rotating cover through the embedded inner groove.

[0010] In one feasible technical solution of this application, the pitch adjustment assembly includes a geared motor, a bidirectional screw, and a linear shaft. The geared motor is installed on the outside of the open mill shroud. The bidirectional screw is fixedly connected to the outside of the output end of the geared motor, and the outer thread surface of the bidirectional screw is screwed to the middle of the movable bracket. The linear shaft passes through the interior of the movable bracket and is fixedly connected to the inner surface of the open mill shroud.

[0011] In one feasible technical solution of this application, the cleaning assembly includes a bracket with square holes, a compression spring, and a cleaning brush plate. The bracket with square holes is fixedly connected inside the semi-enclosed rotating cover. The cleaning brush plate is slidably connected inside the bracket with square holes and abuts against the outer wall of the electric roller. The two sides of the compression spring are fixedly connected to the surfaces of the bracket with square holes and the cleaning brush plate, respectively.

[0012] In one feasible technical solution of this application, the interior of the movable bracket is provided with threaded grooves and through holes that are adapted to the dimensions of the bidirectional screw and the linear shaft.

[0013] In one feasible technical solution of this application, a DC motor and a connecting shaft are also provided on both sides of the semi-enclosed rotating cover. The DC motor is threadedly connected to the inner side of the open mill cover, and the connecting shaft is installed on the outer side of the output end of the DC motor and fixedly connected to the middle of the semi-enclosed rotating cover.

[0014] In one feasible technical solution of this application, the DC motors are symmetrically arranged inside the open mill shroud, and the surface of the DC motors does not contact the outer surface of the movable support.

[0015] In one feasible technical solution of this application, the outer side of the open mill hood is also equipped with several sets of flared support plates for preventing the body from being pulled into the inner side of the electric roller.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This device is equipped with a semi-enclosed rotating cover. During the open milling process, the semi-enclosed rotating cover is located outside the electric roller, ensuring normal operating space. After the open milling process, it covers the electric roller, forming a physical barrier to prevent accidental contact by personnel, falling tools, or foreign objects from hitting the roller surface. It is suitable for frequent material changes or intermittent operation scenarios. The embedded inner groove structure ensures rapid alignment of the electric roller and the semi-enclosed rotating cover, avoiding mechanical interference. Furthermore, the flared support plate installed on the outside of the open mill cover can prevent the operator's body from approaching the gap between the electric rollers, further reducing the risk of entanglement. On the other hand, the cleaning brush plate, which is pressed by a compression spring, removes residual materials from the surface of the electric roller in real time, preventing the accumulation of sticky materials from affecting the mixing effect and corroding the roller. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a two-roll mill with a protective device according to an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the structure of the electric roller and the semi-enclosed rotating cover in the embodiments of this application.

[0021] Figure 3 This is a schematic diagram of the structure under the protection of the semi-enclosed rotating cover in the embodiments of this application.

[0022] Figure 4 This is a cross-sectional view of the inner side of the open mill hood in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the structure of the movable support in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the cleaning component in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Open mill hood; 2. Electric roller; 3. Movable support; 4. Semi-enclosed rotating hood;

[0027] 5. Cleaning components; 51. Bracket with square hole; 52. Compression spring; 53. Cleaning brush plate;

[0028] 6. Adjustable pitch assembly; 61. Gear motor; 62. Bidirectional screw; 63. Linear shaft;

[0029] 7. Embedded inner groove; 8. Threaded groove; 9. Through hole; 10. DC motor; 11. Connecting shaft; 12. Flared support plate. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses an open mill with a protective device. (Refer to...) Figures 1 to 6 The open mill with protective devices includes an open mill cover 1, an electric roller 2, a movable support 3, a semi-enclosed rotating cover 4, a cleaning component 5, and an adjusting component 6. The movable support 3 is movably connected inside the open mill cover 1. One end of the electric roller 2 is rotatably connected to the middle of the movable support 3. The semi-enclosed rotating cover 4 is rotatably connected to the open mill cover 1 and located outside the electric roller 2. The cleaning component 5 is installed inside the semi-enclosed rotating cover 4. The adjusting component 6 is installed on one side of the open mill cover 1.

[0036] The electric roller 2 shears and mixes the material by rotating relative to each other. The open mill cover 1 is used to support the electric roller 2 and the gap adjustment component 6. The gap adjustment component 6, together with the movable bracket 3, is used to adjust the gap between the electric rollers 2 and control the material thickness. The semi-enclosed rotating cover 4 is used to cover the outside of the electric roller 2 after open milling and to provide anti-smashing protection. The cleaning component 5 is used to clean the adhesive material on the surface of the electric roller 2.

[0037] One side of the semi-enclosed rotating cover 4 has an embedded inner groove 7 that is larger than the electric roller 2. The electric roller 2 is inserted laterally into the interior of the semi-enclosed rotating cover 4 through the embedded inner groove 7.

[0038] The pitch adjustment assembly 6 includes a geared motor 61, a bidirectional screw 62, and a linear shaft 63. The geared motor 61 is installed on the outside of the open mill cover 1. The bidirectional screw 62 is fixedly connected to the outside of the output end of the geared motor 61, and the outer thread surface of the bidirectional screw 62 is screwed to the middle of the movable bracket 3. The linear shaft 63 passes through the interior of the movable bracket 3 and is fixedly connected to the inner surface of the open mill cover 1.

[0039] The cleaning assembly 5 includes a bracket with square holes 51, a compression spring 52, and a cleaning brush plate 53. The bracket with square holes 51 is fixedly connected inside the semi-enclosed rotating cover 4. The cleaning brush plate 53 is slidably connected inside the bracket with square holes 51 and abuts against the outer wall of the electric roller 2. The two sides of the compression spring 52 are fixedly connected to the surfaces of the bracket with square holes 51 and the cleaning brush plate 53, respectively.

[0040] The interior of the movable bracket 3 is provided with threaded grooves 8 and through holes 9 that are adapted to the dimensions of the bidirectional screw 62 and the linear shaft 63, respectively.

[0041] The semi-enclosed rotating cover 4 is also provided with a DC motor 10 and a connecting shaft 11 on both sides. The DC motor 10 is threaded to the inside of the open mill cover 1, and the connecting shaft 11 is installed on the outside of the output end of the DC motor 10 and fixedly connected to the middle of the semi-enclosed rotating cover 4.

[0042] The DC motors 10 are symmetrically arranged inside the open mill cover 1, and the surface of the DC motors 10 does not contact the outer surface of the movable support 3.

[0043] Several sets of flared support plates 12 are also installed on the outside of the open mill cover 1 to prevent the body from being caught in the inside of the electric roller 2.

[0044] The operation of the open mill with protective device according to this application embodiment is roughly as follows:

[0045] The geared motor 61 is started, driving the bidirectional screw 62 to rotate. The gap between the two electric rollers 2 is adjusted by the screwed movable bracket 3. The threaded groove 8 and the through hole 9 ensure that the movable bracket 3 moves smoothly and the material thickness is precisely controlled. During the initial mixing, the DC motor 10 is started, and the semi-enclosed rotating cover 4 is rotated to the open position through the connecting shaft 11, exposing the electric rollers 2. The material is fed in for mixing. The electric rollers 2 rotate relative to each other to shear the material. The flared support plate 12 prevents limbs from approaching the danger zone. After mixing is completed, the DC motor 10 is started again, and the semi-enclosed rotating cover 4 is rotated to the closed state. The inner groove 7 is embedded to ensure that the electric rollers 2 are accurately embedded inside the semi-enclosed rotating cover 4, forming an anti-smashing protection. During the rotation, the compression spring 52 pushes the cleaning brush 53 to press against the surface of the electric rollers 2. The residual material is removed by sliding. The bracket with square holes 51 limits the stroke of the cleaning brush 53 to ensure uniform pressure, thereby achieving the protection and self-cleaning effect of this device.

[0046] The beneficial technical effects of the open mill with protective device in the embodiments of this application are roughly as follows:

[0047] This device is equipped with a semi-enclosed rotating cover 4. During the open milling process, the semi-enclosed rotating cover 4 is located outside the electric roller 2 to ensure normal operating space. After the open milling process, it covers the electric roller 2 to form a physical barrier, preventing accidental contact by personnel, dropping of tools, or impact of foreign objects on the roller surface. It is suitable for frequent material changes or intermittent operation scenarios. The embedded inner groove 7 structure ensures quick alignment between the electric roller 2 and the semi-enclosed rotating cover 4, avoiding mechanical interference. The flared support plate 12 installed on the outside of the open mill cover 1 can prevent the operator's body from approaching the gap of the electric roller 2, further reducing the risk of entanglement. On the other hand, the cleaning brush plate 53, which is pressed by the compression spring 52, removes residual materials from the surface of the electric roller 2 in real time, preventing the accumulation of sticky materials from affecting the mixing effect and corroding the roller.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A two-roll mill with a protective device, characterized in that, The assembly includes a mill hood (1), an electric roller (2), a movable support (3), a semi-enclosed rotating cover (4), a cleaning component (5), and a pitch adjustment component (6). The movable support (3) is movably connected inside the mill hood (1). One end of the electric roller (2) is rotatably connected to the middle of the movable support (3). The semi-enclosed rotating cover (4) is rotatably connected to the mill hood (1) located outside the electric roller (2). The cleaning component (5) is installed inside the semi-enclosed rotating cover (4). The pitch adjustment component (6) is installed on one side of the mill hood (1). The electric roller (2) shears and mixes the material by relative rotation. The open mill cover (1) is used to support the electric roller (2) and the adjusting component (6). The adjusting component (6) works with the movable bracket (3) to adjust the gap between the electric rollers (2) and control the material thickness. The semi-enclosed rotating cover (4) is used to cover the outside of the electric roller (2) after open milling and to provide anti-smashing protection. The cleaning component (5) is used to clean the adhesive material on the surface of the electric roller (2).

2. The open mill with protective device according to claim 1, characterized in that, The semi-enclosed rotating cover (4) has an embedded inner groove (7) on one side, which is larger than the electric roller (2). The electric roller (2) is inserted laterally into the interior of the semi-enclosed rotating cover (4) through the embedded inner groove (7).

3. The open mill with protective device according to claim 1, characterized in that, The pitch adjustment assembly (6) includes a geared motor (61), a bidirectional screw (62), and a linear shaft (63). The geared motor (61) is installed on the outside of the open mill cover (1). The bidirectional screw (62) is fixedly connected to the outside of the output end of the geared motor (61), and the outer thread surface of the bidirectional screw (62) is screwed to the middle of the movable bracket (3). The linear shaft (63) passes through the interior of the movable bracket (3) and is fixedly connected to the inner surface of the open mill cover (1).

4. The open mill with protective device according to claim 1, characterized in that, The cleaning assembly (5) includes a bracket with square holes (51), a compression spring (52), and a cleaning brush plate (53). The bracket with square holes (51) is fixedly connected inside the semi-enclosed rotating cover (4). The cleaning brush plate (53) is slidably connected inside the bracket with square holes (51) and abuts against the outer wall of the electric roller (2). The two sides of the compression spring (52) are fixedly connected to the surfaces of the bracket with square holes (51) and the cleaning brush plate (53), respectively.

5. The open mill with protective device according to claim 3, characterized in that, The movable bracket (3) has threaded grooves (8) and through holes (9) that are adapted to the dimensions of the bidirectional screw (62) and the linear shaft (63), respectively.

6. The open mill with protective device according to claim 1, characterized in that, The semi-enclosed rotating cover (4) is also provided with a DC motor (10) and a connecting shaft (11) on both sides. The DC motor (10) is threadedly connected to the inside of the open mill cover (1). The connecting shaft (11) is installed on the outside of the output end of the DC motor (10) and is fixedly connected to the middle of the semi-enclosed rotating cover (4).

7. The open mill with protective device according to claim 6, characterized in that, The DC motor (10) is symmetrically arranged inside the open mill cover (1), and the surface of the DC motor (10) does not contact the outer surface of the movable support (3).

8. The open mill with protective device according to claim 1, characterized in that, The outside of the open mill cover (1) is also equipped with several sets of flared support plates (12) to prevent the body from being caught inside the electric roller (2).

Images