Compact 12-inch open mill

Abstract

The utility model belongs to the technical field of rubber mixing of rubber or plastic open mill equipment, and discloses a compact 12-inch open mill which comprises a tabletting structure, a rack gland is arranged at the top of the tabletting structure, a rubber blocking structure is arranged at the top of the rack gland, a distance adjusting structure is arranged on the outer side of the tabletting structure, and the distance adjusting structure is arranged on the outer side of the rack gland. A pneumatic cutter is arranged on the inner side of the tabletting structure, and an operation panel is arranged on the front face of the tabletting structure. The external hydraulic brake is provided with the brake disc and the brake pad, the air cylinder is started to drive the connecting frame to move upwards, the connecting frame is hinged to the movable frame to drive the brake pad to extrude the brake disc, and the brake disc stops rotating in time. And when danger occurs, the open mill can immediately stop the rotation of the fixed roller and the movable roller, so that the situation that the equipment cannot be stopped at the first time due to inertia during automatic stop is avoided, and the injury to operators is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of rubber or plastic open mixing mill equipment technology, specifically a compact 12-inch open mixing mill. Background Technology

[0002] An open mixing mill is a type of rubber mixing machine with exposed rollers used for preparing plasticized rubber, compounded rubber, or for hot refining and molding. It mixes and disperses resins and other auxiliary materials, and through shearing, achieves a certain degree of dispersion uniformity and plasticity, and is used to produce compounded products with the required quality and color.

[0003] In existing open mills, material is drawn into the gap between two relatively rotating rollers at different linear velocities under the influence of friction. The material is subjected to intense shearing and compression through the roller gap, which raises the material temperature and increases its plasticity, thereby achieving the purpose of rubber mixing. However, during operation, much of the internal structure of the open mill is exposed to the outside environment, which can easily lead to safety hazards. In case of danger, it is not possible to stop the rotation in time, resulting in a low safety factor. Furthermore, under prolonged high-intensity operation, the rollers are prone to overheating, affecting the quality of the material, wasting manpower and time, and reducing production efficiency. Therefore, improvements are needed. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a compact 12-inch open mill.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a compact 12-inch open mill, comprising a tableting structure, a frame cover on the top of the tableting structure, a glue-blocking structure on the top of the frame cover, an adjustable spacing structure on the outer side of the tableting structure, a pneumatic cutter on the inner side of the tableting structure, an operation panel on the front of the tableting structure, a brake on the outer side of the tableting structure, a main electrical box on the top of the tableting structure, and a lubrication circulation assembly on the top of the tableting structure;

[0006] The tablet pressing structure includes a mounting frame, with supports on both sides of the top of the mounting frame. A drive motor is mounted on the top of the mounting frame, and the output shaft of the drive motor is connected to a gearbox. A fixed roller is mounted on the support at the end of the gearbox. A movable roller is mounted on the outside of the fixed roller. Both the fixed roller and the movable roller have meshing gears on their outer sides. Bearings are mounted on both sides of the fixed roller and the movable roller. Connecting pipes are mounted on the shaft ends of both the fixed roller and the movable roller. A waste box is mounted on the top of the mounting frame below the fixed roller and the movable roller.

[0007] The brake device includes a protective box and a brake disc. The inner wall of the brake disc is connected to the output shaft of the drive motor. A cylinder is provided on the outside of the protective box. The outer side of the cylinder is connected to the outer wall of the mounting bracket. A connecting bracket is provided on the top of the cylinder. The other end of the connecting bracket extends into the inner cavity of the protective box and is hinged to a movable bracket. A brake pad is hinged to the other end of the movable bracket.

[0008] Preferably, the top of the bracket is connected to the bottom of the frame cover, and the bottom of the frame cover is movably connected to the outer side of the movable roller and the fixed roller.

[0009] Preferably, the adhesive-blocking structure includes a support frame, and baffles are provided on both sides of the support frame. The bottom of the baffles is movably connected to the outer surfaces of the fixed roller and the movable roller, respectively.

[0010] Preferably, the adjusting structure includes a screw, the outer surface of which is threadedly connected to the inner wall of the support, a rotating rod is provided on the outer side of the screw, and the inner side of the screw is movably connected to the outer side of the movable roller.

[0011] Preferably, both the fixed roller and the movable roller are made of chilled cast iron by high-speed centrifugal casting.

[0012] Preferably, the lubrication circulation assembly includes an oil pump, the bottom of which is connected to the outside of the pressure plate structure. An oil tank is located in the inner cavity of the mounting bracket at the bottom of the oil pump. An installation pipe is provided at the top of the oil tank. The installation pipe is connected to a connecting pipe through a flexible hose. A filter screen is provided inside the oil tank.

[0013] Preferably, the pneumatic cutter includes a connecting rod, with blades provided on both sides of the connecting rod, and the pneumatic cutter is positioned below the movable roller.

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

[0015] This utility model is equipped with a brake disc and brake pads. By starting the cylinder, the connecting frame moves upward. Through the hinge between the connecting frame and the movable frame, the brake pads squeeze the brake disc, causing the brake disc to stop rotating in time. Thus, by installing an external hydraulic brake on the output shaft of the drive motor, the open mill can immediately stop the rotation of the fixed roller and the movable roller when a danger occurs, avoiding the inability to stop the equipment in time due to inertia during automatic stop, and preventing injury to the operators.

[0016] This utility model is equipped with a connecting pipe and an installation pipe. When the equipment is in operation, the oil pump is started to draw lubricating oil from the oil tank and then guides it into the bearing through the installation pipe, hose, and connecting pipe. This removes the temperature of the bearing during operation and the metal dust from wear, preventing secondary damage to the parts. The flowing lubricating oil is filtered by the filter plate and falls back into the oil tank. The oil pump then draws it again, thus circulating it for lubrication. This extends the life of the parts, and the operation is quiet. The product quality is not affected by the temperature of rotation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the adhesive-blocking structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bearing of this utility model;

[0020] Figure 4 This is a schematic diagram of the brake disc of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the lubrication circulation assembly of this utility model.

[0022] In the diagram: 1. Pressing structure; 101. Mounting frame; 102. Bracket; 103. Drive motor; 104. Gearbox; 105. Gear; 106. Fixed roller; 107. Movable roller; 108. Bearing; 109. Connecting pipe; 110. Waste box; 2. Frame cover; 3. Glue-blocking structure; 301. Support frame; 302. Baffle; 4. Adjustable distance structure; 401. Screw; 402. Rotary rod; 5. Pneumatic cutter; 6. Control panel; 7. Brake; 701. Protective box; 702. Cylinder; 703. Connecting frame; 704. Brake disc; 705. Brake pad; 706. Movable frame; 8. Main electrical box; 9. Lubrication circulation assembly; 901. Oil pump; 902. Oil tank; 903. Mounting pipe. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1 to 5As shown, this is the first embodiment of the utility model, providing a compact 12-inch open mill, including a tableting structure 1, a frame cover 2 on the top of the tableting structure 1, a glue-blocking structure 3 on the top of the frame cover 2, an adjusting structure 4 on the outer side of the tableting structure 1, a pneumatic cutter 5 on the inner side of the tableting structure 1, an operation panel 6 on the front of the tableting structure 1, a brake 7 on the outer side of the tableting structure 1, a main electrical box 8 on the top of the tableting structure 1, and a lubrication circulation assembly 9 on the top of the tableting structure 1;

[0026] The tablet compression structure 1 includes a mounting frame 101, with brackets 102 on both sides of the top of the mounting frame 101. A drive motor 103 is mounted on the top of the mounting frame 101. The output shaft of the drive motor 103 is connected to a gearbox 104. A fixed roller 106 is mounted on the bracket 102 at the end of the gearbox 104. A movable roller 107 is mounted on the outside of the fixed roller 106. Gears 105 mesh with each other are mounted on the outside of both the fixed roller 106 and the movable roller 107. Bearings 108 are mounted on both sides of both the fixed roller 106 and the movable roller 107. Connecting pipes 109 are mounted on the shaft ends of both the fixed roller 106 and the movable roller 107. A waste box 110 is mounted on the top of the mounting frame 101 and located below the fixed roller 106 and the movable roller 107.

[0027] The brake 7 includes a protective housing 701 and a brake disc 704. The inner wall of the brake disc 704 is connected to the output shaft of the drive motor 103. A cylinder 702 is provided on the outside of the protective housing 701. The outer side of the cylinder 702 is connected to the outer wall of the mounting bracket 101. A connecting bracket 703 is provided on the top of the cylinder 702. The other end of the connecting bracket 703 extends into the inner cavity of the protective housing 701 and is hinged to a movable bracket 706. The other end of the movable bracket 706 is hinged to a brake pad 705.

[0028] When the tableting structure 1 is in use, the start of the drive motor 103 is controlled by the operation panel 6. The drive motor 103 then drives the brake disc 704 to rotate via the output shaft. The rotation speed of the output shaft is adjusted by the gearbox 104, thereby driving the fixed roller 106 to rotate. Simultaneously, the gears 105 on the outer sides of the fixed roller 106 and the movable roller 107 cause both rollers to rotate, thus mixing the rubber or plastic materials to ensure uniform mixing. However, the entire tableting structure 1... When a dangerous situation occurs during the operation of the machine, the cylinder 702 is activated, which drives the connecting frame 703 to move upward. The other end of the connecting frame 703 presses against the movable frame 706. The other end of the movable frame 706 presses against the brake pad 705, which then contacts the brake disc 704. This causes the brake pad 705 to stop the high-speed rotating brake disc 704 immediately, stopping the output shaft of the drive motor 103 and preventing injury to the operator. This avoids the situation where existing open mills, due to inertia, cannot stop the equipment immediately when they stop automatically, which can easily cause injury to the operator.

[0029] The main electrical box 8 is equipped with a photoelectric monitoring system, which can monitor violations of operation in real time. When there is a safety risk due to dangerous conditions or violations of operation, the equipment will trigger the brake 7 to stop itself, thus improving the safety of operators.

[0030] Meanwhile, the lubrication circulation component 9 sprays lubricating oil onto the internal bearing 108 during the operation of the fixed roller 106 and the movable roller 107. At the same time, the connection between the connecting pipe 109 and the lubrication circulation component 9 allows the bearing 108 to carry away heat and metal dust during wear, preventing secondary damage to the parts and preventing the temperature generated by rotation from affecting product quality.

[0031] Example 2

[0032] like Figure 2 and Figure 5 As shown, this embodiment includes the features of embodiment 1. The distinguishing technical feature is that the top of the bracket 102 is connected to the bottom of the frame cover 2, and the bottom of the frame cover 2 is movably connected to the outer side of the movable roller 107 and the fixed roller 106.

[0033] When the frame cover 2 is removed from the top of the bracket 102, it facilitates maintenance of the fixed roller 106 and the movable roller 107.

[0034] The adhesive blocking structure 3 includes a support frame 301, and baffles 302 are provided on both sides of the support frame 301. The bottom of the baffles 302 is movably connected to the outer surface of the fixed roller 106 and the movable roller 107, respectively.

[0035] By adjusting the distance between the baffles 302, it is easy to process sheet materials of different widths to meet production requirements, which brings convenience to the operators.

[0036] Among them, the adjusting structure 4 includes a screw 401, the outer surface of the screw 401 is threadedly connected to the inner wall of the bracket 102, a rotating rod 402 is provided on the outer side of the screw 401, and the inner side of the screw 401 is movably connected to the outer side of the movable roller 107.

[0037] By rotating the rotary rod 402, the screw 401 is rotated, which in turn drives the movable roller 107 to move as a whole, thereby adjusting the distance between the fixed roller 106 and the movable roller 107. This allows for the production of sheets of different thicknesses, improving the practicality of the equipment.

[0038] Both the fixed roller 106 and the movable roller 107 are made of chilled cast iron by high-speed centrifugal casting.

[0039] The fixed roller 106 and movable roller 107, made of chilled cast iron by high-speed centrifugal casting, have higher strength and wear resistance, which can effectively enhance the shear force and friction on the material, promote the rapid and uniform mixing of the material, and make the roller more airtight, effectively reducing sand holes in the roller, making the density more uniform, and making the dynamic balance more stable during operation, ensuring the provision of stable shear force and strength.

[0040] The lubrication circulation assembly 9 includes an oil pump 901. The bottom of the oil pump 901 is connected to the outside of the pressing structure 1. An oil tank 902 is located in the inner cavity of the mounting bracket 101 at the bottom of the oil pump 901. An installation pipe 903 is provided on the top of the oil tank 902. The installation pipe 903 is connected to the connecting pipe 109 through a hose. A filter screen is provided inside the oil tank 902.

[0041] The lubricating oil is drawn from the oil tank 902 by the oil pump 901, and then transported to the hose and connecting pipe 109 through the installation pipe 903. The lubricating oil is then introduced to the bearing 108 through the connecting pipe 109. The lubricating oil carries away the temperature of the bearing 108 during operation and the metal dust generated during wear. After that, the lubricating oil is introduced into the oil tank 902, where impurities are filtered through the filter screen. The lubricating oil is then drawn out by the oil pump 901 for lubrication. Compared with traditional grease lubrication, this method extends the life of equipment parts, reduces noise, and does not affect product quality due to rotational temperature, thus bringing convenience to operators.

[0042] The pneumatic cutter 5 includes a connecting rod, with blades on both sides of the connecting rod. The pneumatic cutter 5 is positioned below the movable roller 107.

[0043] By adjusting the distance between the two pneumatic cutters 5, sheets of different widths can be cut, and the cut edges fall into the waste box 110 for collection, making it convenient for subsequent processing.

[0044] Working principle and usage process of this utility model:

[0045] First, when the operator controls the drive motor 103 via the control panel 6, the fixed roller 106 is rotated via the pitch adjustment structure 4. The gear 105 then drives the fixed roller 106 and the movable roller 107 to rotate relative to each other, thus mixing the material between them. The width of the material is controlled by the glue-blocking structure 3. Simultaneously, the material is extruded between the fixed roller 106 and the movable roller 107, and the pneumatic cutter 5 cuts the sheet material to the appropriate width to meet requirements. At the same time, when the tableting structure 1 is running, the oil pump 901 starts, drawing lubricating oil from the oil tank 902 through the installation pipe 903 and introducing it into the inner cavity of the fixed roller 106 and the movable roller 107 to lubricate the bearing 108. This lubricating oil also removes heat and metal dust from the bearing 108 during operation, preventing secondary damage to components, avoiding impact on product quality, and improving production efficiency.

[0046] Furthermore, in case of danger, it is necessary to stop the rotation of the equipment and start the cylinder 702. The operation of the cylinder 702 drives the connecting frame 703 to move upward. Through the movable frame 706, the brake pad 705 squeezes the brake disc 704 on the output shaft of the drive motor 103, causing the output shaft to stop rotating. This prevents the operator from being injured and avoids the inability to stop the equipment immediately due to inertia when stopping, thus preventing safety hazards and bringing convenience to the operator.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A compact 12-inch open mill, comprising a tableting structure (1), characterized in that: The top of the pressing structure (1) is provided with a frame cover (2), the top of the frame cover (2) is provided with a glue-blocking structure (3), the outer side of the pressing structure (1) is provided with an adjustable distance structure (4), the inner side of the pressing structure (1) is provided with a pneumatic cutter (5), the front of the pressing structure (1) is provided with an operation panel (6), the outer side of the pressing structure (1) is provided with a brake (7), the top of the pressing structure (1) is provided with a main electrical box (8), and the top of the pressing structure (1) is provided with a lubrication circulation assembly (9). The tablet pressing structure (1) includes a mounting frame (101), with brackets (102) on both sides of the top of the mounting frame (101). A drive motor (103) is mounted on the top of the mounting frame (101), and the output shaft of the drive motor (103) is connected to a gearbox (104). A fixed roller (106) located on the bracket (102) is mounted at the end of the gearbox (104), and a movable roller (107) is mounted on the outside of the fixed roller (106). The fixed roller (106) and the movable roller (107) are provided with meshing gears (105) on their outer sides. The fixed roller (106) and the movable roller (107) are provided with bearings (108) on both sides. The shaft ends of the fixed roller (106) and the movable roller (107) are provided with connecting pipes (109). The top of the mounting frame (101) is provided with a waste box (110) located below the fixed roller (106) and the movable roller (107). The brake (7) includes a protective housing (701) and a brake disc (704). The inner wall of the brake disc (704) is connected to the output shaft of the drive motor (103). A cylinder (702) is provided on the outside of the protective housing (701). The outside of the cylinder (702) is connected to the outer wall of the mounting bracket (101). A connecting bracket (703) is provided on the top of the cylinder (702). The other end of the connecting bracket (703) extends into the inner cavity of the protective housing (701) and is hinged to a movable bracket (706). The other end of the movable bracket (706) is hinged to a brake pad (705).

2. The compact 12-inch open mill according to claim 1, characterized in that: The top of the bracket (102) is connected to the bottom of the frame cover (2), and the bottom of the frame cover (2) is movably connected to the outside of the movable roller (107) and the fixed roller (106).

3. A compact 12-inch open mill according to claim 1, characterized in that: The adhesive-blocking structure (3) includes a support frame (301), and baffles (302) are provided on both sides of the support frame (301). The bottom of the baffles (302) is movably connected to the outer surfaces of the fixed roller (106) and the movable roller (107), respectively.

4. A compact 12-inch open mill according to claim 1, characterized in that: The adjustable distance structure (4) includes a screw (401), the outer surface of the screw (401) is threadedly connected to the inner wall of the bracket (102), a rotating rod (402) is provided on the outer side of the screw (401), and the inner side of the screw (401) is movably connected to the outer side of the movable roller (107).

5. A compact 12-inch open mill according to claim 1, characterized in that: Both the fixed roller (106) and the movable roller (107) are made of chilled cast iron by high-speed centrifugal casting.

6. A compact 12-inch open mill according to claim 1, characterized in that: The lubrication circulation assembly (9) includes an oil pump (901), the bottom of which is connected to the outside of the pressure plate structure (1). The bottom of the oil pump (901) is provided with an oil tank (902) located in the inner cavity of the mounting bracket (101). The top of the oil tank (902) is provided with an installation pipe (903), which is connected to the connecting pipe (109) through a hose. The oil tank (902) is provided with a filter screen inside.

7. A compact 12-inch open mill according to claim 1, characterized in that: The pneumatic cutter (5) includes a connecting rod, and blades are provided on both sides of the connecting rod. The pneumatic cutter (5) is located below the movable roller (107).

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