A two-roll mill capable of uniform feeding

By introducing a feeding mechanism and an adjustment mechanism into the open mill, and utilizing the extrusion shaft and limit plate structure driven by a rotary motor and a servo motor, the problem of uneven powder feeding was solved, achieving uniform feeding and adapting to the processing of different product models, thus improving the quality and applicability of the open mill.

CN224391597UActive Publication Date: 2026-06-23SHENZHEN FAITAN ELECTRONICS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN FAITAN ELECTRONICS TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

When feeding existing open mills, workers usually need to use trays or other tools to add powder along the axis of the open mill rolls, which results in uneven powder feeding, easy accumulation, and affects the quality of refining.

Method used

A two-roll mill including a feeding mechanism and an adjustment mechanism was designed. Through the extrusion shaft and limit plate structure driven by a rotary motor and a servo motor, the raw materials are evenly spread in the feeding box and the spacing of the limit plates is adjusted to ensure uniform feeding of raw materials and adapt to the processing of different models of products.

Benefits of technology

It achieves uniform spreading of raw materials in the feeding box, avoids accumulation, ensures uniform feeding, improves the quality of open milling, and can adapt to the processing needs of different models of products, thus improving the applicability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an open mill in the field of open mill can even feed, including work table, frame, feeding mechanism and adjusting mechanism, the frame symmetry is fixed in the top of work table, the feeding mechanism is connected in the top of frame, the adjusting mechanism is connected in the inboard of frame, and the open mill roller has been rotated to the symmetry between the opposite side of two frame, the transmission shaft of open mill roller one fixed gear, the top edge of work table is fixed with drive motor, this even feeding's open mill, pours raw material into the discharging box, starts the rotation motor, drives first carousel rotation, makes extrusion axle deflection, extrudes the side wall of through -groove, makes the movable rod to drive the back and forth movement of discharging box to even make raw material in the inside even of discharging box, avoids the accumulation, then pulls the baffle, makes raw material to fall between open mill roller to avoid raw material accumulation uneven, and the even feeding of convenient, prevent the influence open mill quality.
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Description

Technical Field

[0001] This utility model relates to the field of open mill technology, specifically an open mill capable of uniform feeding. Background Technology

[0002] An open mixing mill, also known as a rubber mixing mill, is a type of mechanical equipment used for hot refining, mixing, plasticizing, and sheeting of rubber. This equipment mainly consists of rollers, a pitch adjustment device, a temperature control system, and other components. The rollers are mostly made of alloy chilled cast iron to enhance wear resistance. Different models of open mixing mills have various specifications, such as roller diameters ranging from 160mm to 630mm, and are suitable for processing solid silicone rubber, rubber and plastic materials, etc.

[0003] Chinese patent CN209987208U discloses a high-efficiency feeding type rubber open mill, which includes two frames and two open milling rollers rotatably connected between the two frames. A receiving box is set below the open milling rollers, and a feeding box with open top and bottom is set above the open milling rollers. A feeding plate is set inside the feeding box, and multiple feeding holes are evenly opened on the surface of the feeding plate. An adjusting plate is slidably connected inside the feeding box, and multiple adjusting holes of the same size as the feeding holes are evenly opened on the surface of the adjusting plate. Sliding the adjusting plate can make the adjusting holes offset from or aligned with the feeding holes. This application has the effect of uniformly adding powder and improving the quality of rubber compounding. As can be seen from the above patent, when feeding, workers usually need to use a tray or other tools to receive the powder and add it from above the open milling rollers along the axis of the open milling rollers. This method cannot add powder evenly and is prone to powder accumulation, thus affecting the quality of compounding. Therefore, we propose an open mill that can uniformly add powder. Utility Model Content

[0004] The purpose of this utility model is to provide a two-roll mill that can uniformly feed materials, in order to solve the problem mentioned in the background art. As can be seen from the above patent, when feeding materials, workers usually need to use a tray or other tools to receive the powder and add the powder from above the two-roll mill and along the axis of the two-roll mill. This method cannot add the powder evenly and easily causes the powder to accumulate, thereby affecting the quality of the refining.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-roll mill capable of uniformly feeding, comprising a worktable, a frame, a feeding mechanism, and an adjusting mechanism. The frame is symmetrically fixed to the top of the worktable, the feeding mechanism is connected to the top of the frame, and the adjusting mechanism is connected to the inner side of the frame. Two-roll mills rotate symmetrically between opposite sides of the two frames. A gear is fixed to a section of the drive shaft of the two-roll mills. A drive motor is fixed to the top edge of the worktable. The feeding mechanism includes a support plate fixed to the middle of the top of the frame. Slide rods are symmetrically fixed at the bottom between opposite sides of the two support plates. Slider blocks slide symmetrically on the outer side of the slide rods. A discharge box is fixed to opposite sides of the two slider blocks. A moving rod is fixed to one side of the discharge box. A through slot is formed at the top of one side of the moving rod. Mounting plates are fixed to opposite sides of the two support plates. A rotating motor is fixed to the middle of one side of the mounting plate. A first turntable is fixed to the end of the output shaft of the rotating motor. An extrusion shaft is fixed to one side of the first turntable.

[0006] As a further description of the above technical solution:

[0007] The feeding mechanism also includes slots extending through the bottom of both sides of the feeding box, and baffles are connected inside the slots.

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

[0009] The two gears are meshed together, and the output shaft end of the drive motor is fixedly connected to the middle of one side of one of the gears.

[0010] As a further description of the above technical solution:

[0011] The extrusion shaft is located inside the through groove, and the outer side wall of the extrusion shaft is in contact with the inner side wall of the through groove.

[0012] As a further description of the above technical solution:

[0013] The output shaft of the rotating motor passes through one side of the mounting plate, and the deflection circumference diameter of the extrusion shaft is smaller than the length of the through groove.

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

[0015] The adjustment mechanism includes a fixing plate fixed to the rear side of the two frames. A servo motor is fixed to the middle of one side of the fixing plate. A second turntable is fixed to the end of the output shaft of the servo motor. A first connecting shaft is fixed to one side of the second turntable. Limiting rods are fixed to the opposite sides of the two frames. Moving blocks slide symmetrically on the outer side of the limiting rods. A second connecting shaft is fixed to the middle of one side of the moving block. A connecting rod rotates on the outer side of the second connecting shaft. A limiting plate is fixed to the other side of the moving block.

[0016] As a further description of the above technical solution:

[0017] The connecting rod rotates to the outside of the first connecting shaft, the limiting plate is in contact with the outside of the open mill roll, and the end of the output shaft of the servo motor passes through one side of the fixed plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This open mill, capable of uniform feeding, pours raw materials into the feeding box, starts the rotating motor, drives the first turntable to rotate, causing the extrusion shaft to deflect and extrude against the side wall of the through slot. This causes the moving rod to move the feeding box back and forth, thus ensuring that the raw materials are evenly spread inside the feeding box and preventing accumulation. Then, the baffle is pulled to allow the raw materials to fall between the open mill rollers, thereby preventing uneven accumulation of raw materials, facilitating uniform feeding, and preventing any impact on the quality of the open mill.

[0020] This open mill, capable of uniform feeding, drives the second turntable to rotate by starting the servo motor, causing the first connecting shaft to deflect. This deflects the connecting rod, which in turn moves the second connecting shaft, bringing the two moving blocks closer together. This, in turn, brings the limiting plates closer together, thereby adjusting the distance between the two limiting plates. This allows for easy adjustment of the width of the processed products, making it suitable for processing different models of products and improving the applicability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a two-roll mill capable of uniform feeding, as proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the feeding mechanism of an open mill capable of uniform feeding, as proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the slot opening structure of a two-roll mill capable of uniform feeding, as proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the adjustment mechanism of an open mill capable of uniform feeding, as proposed in this utility model.

[0025] Figure 5This is a schematic diagram of the first connecting shaft structure of an open mill capable of uniform feeding, as proposed in this utility model.

[0026] In the diagram: 100, worktable; 200, frame; 210, open mill roll; 220, gear; 230, drive motor; 300, feeding mechanism; 310, support plate; 320, slide bar; 330, slider; 340, discharge box; 341, slot; 342, baffle; 350, moving rod; 351, through slot; 360, mounting plate; 370, rotating motor; 380, first turntable; 390, extrusion shaft; 400, adjusting mechanism; 410, fixing plate; 420, servo motor; 430, second turntable; 431, first connecting shaft; 440, limit rod; 450, moving block; 451, second connecting shaft; 460, connecting rod; 470, limit plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] This invention provides a two-roll mill with uniform feeding capability, ensuring that the raw materials are evenly spread inside the feeding box, preventing accumulation and thus avoiding uneven material buildup. This facilitates uniform feeding and prevents negative impacts on the quality of the two-roll mill. Please refer to [link / reference]. Figure 1-5 It includes a workbench 100, a frame 200, a feeding mechanism 300, and an adjusting mechanism 400;

[0031] Please refer to it again. Figure 1 The workbench 100 is used to mount the frame 200, the feeding mechanism 300, and the adjustment mechanism 400;

[0032] Please refer to it again. Figure 1 The frame 200 is symmetrically fixed to the top of the workbench 100, the feeding mechanism 300 is connected to the top of the frame 200, and the adjusting mechanism 400 is connected to the inside of the frame 200.

[0033] Please refer to it again. Figure 1 Two open mill rolls 210 rotate symmetrically between opposite sides of two frames 200. A gear 220 is fixed to one end of the drive shaft of the open mill roll 210. A drive motor 230 is fixed to the top edge of the worktable 100.

[0034] Please refer to it again. Figure 2 The feeding mechanism 300 includes a support plate 310 fixed to the middle of the top of the frame 200, a sliding rod 320 symmetrically fixed at the bottom between the opposite sides of the two support plates 310, a slider 330 symmetrically sliding on the outside of the sliding rod 320, a feeding box 340 fixed on the opposite sides of the two sliders 330, and a moving rod 350 fixed on one side of the feeding box 340.

[0035] Please refer to it again. Figure 2 A through slot 351 is provided through the top of one side of the moving rod 350. Mounting plates 360 are fixed to the opposite sides of the two support plates 310. A rotating motor 370 is fixed to the middle of one side of the mounting plate 360. A first turntable 380 is fixed to the end of the output shaft of the rotating motor 370. A pressing shaft 390 is fixed to one side of the first turntable 380.

[0036] In summary, the raw materials are poured into the feeding box 340, the rotating motor 370 is started, and the first turntable 380 is driven to rotate, causing the extrusion shaft 390 to deflect and extrude against the side wall of the through groove 351. This causes the moving rod 350 to move the feeding box 340 back and forth, so that the raw materials are evenly spread inside the feeding box 340 and avoid accumulation. Then, the baffle 342 is pulled to make the raw materials fall between the open mill rollers 210, thereby avoiding uneven accumulation of raw materials, facilitating even feeding, and preventing the impact on the open mill quality.

[0037] Please refer to it again. Figure 3The feeding mechanism 300 also includes slots 341 that are opened through the bottom of both sides of the feeding box 340, and baffles 342 are connected inside the slots 341.

[0038] Please refer to it again. Figure 1 The two gears 220 are meshed together, and the output shaft end of the drive motor 230 is fixedly connected to the middle of one side of one of the gears 220.

[0039] Please refer to it again. Figure 2 The extrusion shaft 390 is located inside the through groove 351, and the outer wall of the extrusion shaft 390 is in contact with the inner wall of the through groove 351.

[0040] Please refer to it again. Figure 2 The output shaft of the rotating motor 370 passes through one side of the mounting plate 360, and the deflection circumference diameter of the extrusion shaft 390 is smaller than the length of the through groove 351.

[0041] Please refer to it again. Figure 4 The adjustment mechanism 400 includes a fixing plate 410 fixed to the rear side of the two frames 200. A servo motor 420 is fixed to the middle of one side of the fixing plate 410. A second turntable 430 is fixed to the end of the output shaft of the servo motor 420. A first connecting shaft 431 is fixed to one side of the second turntable 430. Limiting rods 440 are fixed to the opposite sides of the two frames 200. A moving block 450 slides symmetrically on the outer side of the limiting rod 440. A second connecting shaft 451 is fixed to the middle of one side of the moving block 450. A connecting rod 460 rotates on the outer side of the second connecting shaft 451. A limiting plate 470 is fixed to the other side of the moving block 450.

[0042] Please refer to it again. Figure 4 The connecting rod 460 rotates to the outside of the first connecting shaft 431, the limiting plate 470 is in contact with the outside of the open mill roll 210, and the output shaft end of the servo motor 420 passes through one side of the fixed plate 410.

[0043] In summary, by starting the servo motor 420, the second turntable rotates 430, causing the first connecting shaft 431 to deflect, which in turn causes the connecting rod 460 to deflect, driving the second connecting shaft 451 to move. This causes the two moving blocks 450 to move closer to each other, which in turn causes the limiting plates 470 to move closer to each other, thereby adjusting the distance between the two limiting plates 470. This facilitates the adjustment of the width of the processed product, making it suitable for processing different models of products and improving the applicability of the device.

[0044] In practical use, when feeding, those skilled in the art pour the raw material into the feeding box 340, start the rotating motor 370, drive the first turntable 380 to rotate, causing the extrusion shaft 390 to deflect and extrude against the side wall of the through groove 351. This causes the moving rod 350 to move the feeding box 340 back and forth, thereby ensuring that the raw material is evenly spread inside the feeding box 340 and preventing accumulation. After turning off the rotating motor 370, the baffle 342 is pulled to allow the raw material to fall between the open mill rolls 210, thus preventing raw material accumulation. If the distance between the two limit plates 470 is uneven, the servo motor 420 is started to drive the second turntable to rotate 430, causing the first connecting shaft 431 to deflect, which in turn causes the connecting rod 460 to deflect, driving the second connecting shaft 451 to move, so that the two moving blocks 450 move closer to each other, and the limit plates 470 move closer to each other, thereby adjusting the distance between the two limit plates 470. The servo motor 420 is then turned off, which makes it easy to adjust the width of the processed product and facilitates the processing of different models of products.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A two-roll mill capable of uniformly feeding materials, characterized in that: The system includes a workbench (100), a frame (200), a feeding mechanism (300), and an adjusting mechanism (400). The frame (200) is symmetrically fixed to the top of the workbench (100). The feeding mechanism (300) is connected to the top of the frame (200). The adjusting mechanism (400) is connected to the inner side of the frame (200). Two open mill rolls (210) rotate symmetrically between opposite sides of the two frames (200). A gear (220) is fixed to a section of the drive shaft of the open mill roll (210). A drive motor (230) is fixed to the top edge of the workbench (100). The feeding mechanism (300) includes a support plate (310) fixed to the middle of the top of the frame (200). A sliding rod (320) is symmetrically fixed at the bottom between opposite sides of the support plate (310). A slider (330) slides symmetrically on the outer side of the sliding rod (320). A feeding box (340) is fixed on opposite sides of the two sliders (330). A moving rod (350) is fixed on one side of the feeding box (340). A through groove (351) is opened through the top of one side of the moving rod (350). An mounting plate (360) is fixed on the opposite side of the two support plates (310). A rotating motor (370) is fixed in the middle of one side of the mounting plate (360). A first turntable (380) is fixed at the end of the output shaft of the rotating motor (370). An extrusion shaft (390) is fixed on one side of the first turntable (380).

2. The open mill capable of uniform feeding according to claim 1, characterized in that: The feeding mechanism (300) also includes slots (341) that pass through the bottom of both sides of the feeding box (340), and a baffle (342) is connected inside the slot (341).

3. The open mill capable of uniform feeding according to claim 1, characterized in that: The two gears (220) are meshed together, and the output shaft end of the drive motor (230) is fixedly connected to the middle of one side of one of the gears (220).

4. The open mill capable of uniform feeding according to claim 1, characterized in that: The extrusion shaft (390) is located inside the through groove (351), and the outer wall of the extrusion shaft (390) is in contact with the inner wall of the through groove (351).

5. The open mill capable of uniform feeding according to claim 1, characterized in that: The output shaft of the rotating motor (370) passes through one side of the mounting plate (360), and the deflection circumference diameter of the extrusion shaft (390) is smaller than the length of the through groove (351).

6. The open mill capable of uniform feeding according to claim 1, characterized in that: The adjustment mechanism (400) includes a fixing plate (410) fixed to the rear side of the two frames (200). A servo motor (420) is fixed to the middle of one side of the fixing plate (410). A second turntable (430) is fixed to the end of the output shaft of the servo motor (420). A first connecting shaft (431) is fixed to one side of the second turntable (430). Limit rods (440) are fixed to the opposite sides of the two frames (200). A moving block (450) slides symmetrically on the outer side of the limit rod (440). A second connecting shaft (451) is fixed to the middle of one side of the moving block (450). A connecting rod (460) rotates on the outer side of the second connecting shaft (451). A limit plate (470) is fixed to the other side of the moving block (450).

7. The open mill capable of uniform feeding according to claim 6, characterized in that: The connecting rod (460) rotates on the outside of the first connecting shaft (431), the limiting plate (470) is in contact with the outside of the open mill roll (210), and the output shaft end of the servo motor (420) passes through one side of the fixed plate (410).