Rubber open mill

Abstract

The utility model discloses a rubber open mill which comprises a driving motor and a reduction gearbox, the reduction gearbox comprises two input shafts and two output shafts, and the driving motor is in transmission connection with one input shaft through a coupler; the main machine comprises a machine frame, a first roller and a second roller, the first roller and the second roller are rotationally arranged on the machine frame, the first roller and the second roller are arranged at an interval and are in transmission connection through a speed ratio gear, and pull rope emergency stop devices are arranged on the two sides of the top of the machine frame; the number of the main machines is two, and each output shaft of the reduction gearbox is in transmission connection with the first roller in one main machine through a gear coupling. According to the rubber open mill disclosed by the utility model, the reduction gearbox is updated, so that the first rollers in the two main machines are driven by the single driving motor to operate simultaneously, and the rubber open mill has different working modes to correspond to different capacities and does not need to be moved; due to the structure of the driving motor and the reduction gearbox, the occupied space of the rubber open mill is also reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber product production equipment, in particular to a rubber mixing mill. Background Art

[0002] The mixing mill is one of the most commonly used equipment in the rubber industry. It is mainly used for hot refining, mixing and plasticizing of rubber compounds. With the updating of industry technology, the production capacity and cost control of the mixing mill are gradually improved. The mixing mill is developing towards large-scale, high efficiency, energy saving, environmental protection, and high degree of automation. At present, the operation process of a single mixing mill is that the motor drives the roller to rotate to achieve rubber refining. Mixing mills of different specifications correspond to independent production capacities, and the production process has peak and off-peak seasons. During high production, when a single mixing mill is difficult to meet the production capacity requirements, two or even more mixing mills are required to work at the same time. On the one hand, the mixing mill equipment is large in size and does not need to be idle in the factory when the demand for output is not high. During high production, the temporary addition of other mixing mills requires a large space in the factory, and even other equipment needs to be moved, resulting in increased production costs. On the other hand, multiple mixing mills working independently at the same time have poor energy-saving effects and high production costs.

[0003] Therefore, how to solve the problem between the production capacity demand and cost control of the mixing mill is an urgent problem that technicians in this field need to solve. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a rubber mixing mill to improve the production capacity requirements that it can meet and reduce the cost of the production process.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rubber mixing mill, comprising:

[0007] A driving motor and a reduction gearbox, wherein the reduction gearbox comprises two input shafts and two output shafts, and the driving motor is drivingly connected to one of the input shafts through a coupling;

[0008] The main machine comprises a frame, and a first roller and a second roller rotatably arranged on the frame, wherein the first roller and the second roller are arranged at intervals and connected through a speed ratio gear transmission, and rope pull emergency stop devices are arranged on both sides of the top of the frame;

[0009] Two main machines are provided, and each output shaft of the reduction gearbox is drivingly connected to the first roller in one of the main machines through a gear coupling.

[0010] Preferably, in the above-mentioned rubber mixing mill, the frame is further provided with a distance adjusting device for adjusting the distance between the first roller and the second roller.

[0011] Preferably, in the above-mentioned rubber mixing mill, one of the input shafts on the reduction box is used for transmission connection with the driving motor, and the other input shaft is sleeved with a brake wheel, and the brake wheel is used for docking the brake.

[0012] Preferably, in the above-mentioned rubber mixing mill, the two output shafts are coaxial and symmetrically arranged about the bisecting plane of the reduction box, and the two main machines are symmetrically arranged on both sides of the reduction box;

[0013] The two input shafts are also coaxial and symmetrically arranged with respect to a bisecting plane of the reduction gearbox.

[0014] Preferably, in the above-mentioned rubber mixing mill, the first roller and the second roller are rotatably connected to the frame through a spherical roller bearing and a bearing support, respectively.

[0015] Preferably, in the above-mentioned rubber mixing mill, a rubber baffle plate for blocking and limiting the rubber is also provided on the bearing support.

[0016] Preferably, in the above-mentioned rubber mixing mill, the driving motor and the reduction gearbox are both supported and fixed by the driving base, and the main engine is supported and fixed by the main engine base. The driving base and each main engine base are fixedly connected to form an integrated structure by an inserted connecting frame and screws.

[0017] Preferably, in the above-mentioned rubber mixing mill, the shaft ends of the first roller and the second roller extend out of one side of the frame, and the speed ratio gear is sleeved on the shaft ends of the first roller and the second roller.

[0018] Preferably, in the above-mentioned rubber mixing mill, the outer periphery of the speed ratio gear is provided with a protective shell fixedly connected to the frame.

[0019] Preferably, in the above-mentioned rubber mixing mill, the coupling for transmission connection between the driving motor and the input shaft is an elastic pin coupling.

[0020] It can be seen from the above technical scheme that the rubber mixing mill provided by the utility model includes a driving motor, a reduction gearbox and a main machine, wherein the driving motor is transmission-connected with the reduction gearbox to output torque to the reduction gearbox, the reduction gearbox includes at least two input shafts and two output shafts, the driving motor is transmission-connected with an input shaft of the reduction gearbox through a coupling, the reduction gearbox receives torque through the input shaft and then reduces speed and transmits the torque through the output shaft; the main machine specifically includes a frame for carrying other components, and a first roller and a second roller rotatably arranged on the frame, the first roller and the second roller are arranged at intervals to mix and plasticize the rubber through the gap between the two rollers, the first roller serves as an active roller, and is connected to the power output end for rotation, and the first roller and the second roller are transmission-connected by a speed ratio gear, so that the second roller rotates in the opposite direction of the first roller and cooperates to mix the rubber, and at the same time, in order to ensure the installation of personnel and equipment in the event of an accident, pull-rope emergency stop devices are also provided on both sides of the top of the frame, and the pull-rope emergency stop device is pulled to directly stop the rubber mixing mill; and the main machine in the utility model Two machines are provided, and each output shaft of the reduction gearbox is respectively connected to the first roller in a main machine through a gear coupling to transmit torque to the first roller. The gear coupling has a compact structure and a strong load-bearing capacity, so that the torque of the output shaft can be stably transmitted. On the basis of the above structure, a single drive motor is started, that is, at least two main machines can be driven to operate through the reduction gearbox. On the one hand, the rubber mixing mill provided by the present application has a larger production capacity range, and the two main machines can operate at the same time. Similarly, the gear coupling connected to the output shaft on a main machine can also be removed to drive a single main machine, that is, the rubber mixing mill provided by the present application can conveniently change the production capacity when facing different production capacity requirements in the off-season and peak season. On the other hand, in the process of switching the production capacity, the main machine and the drive motor, reduction gearbox and other equipment do not need to be moved, which is more free when arranging the equipment in the factory. Relatively speaking, when the two main machines are running at the same time, the floor space is smaller than that of two independent rubber mixing mills, so as to reduce the production cost in the rubber processing process through convenient switching of production capacity and smaller area occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a rubber mixing mill provided in an embodiment of the utility model;

[0023] Figure 2 This is a back view of a rubber mixing mill;

[0024] Figure 3 It is the top view of the reduction box;

[0025] Figure 4 It is a schematic diagram of the structure of a rubber mixing mill equipped with a protective shell;

[0026] Among them, 10-drive motor; 20-reduction box; 210-input shaft; 220-output shaft; 230-gear coupling; 240-brake wheel; 30-main machine; 310-frame; 320-first roller; 330-second roller; 340-speed ratio gear; 350-pull rope emergency stop device; 360-distance adjustment device; 370-rubber baffle; 40-drive base; 50-main machine base; 60-connecting frame; 70-protective shell; 80-elastic pin coupling. DETAILED DESCRIPTION

[0027] The core of the utility model is to disclose a rubber mixing mill to improve the production capacity requirements that can be met and reduce the cost of the production process.

[0028] In order to make the technical personnel in this field better understand the present invention, the embodiments of the present invention are described below with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary for the solutions of the utility model described in the claims.

[0029] like Figure 1-4 As shown, the rubber mixing mill provided by the embodiment of the utility model includes a driving motor 10, a reduction gearbox 20 and a main unit 30, wherein the driving motor 10 is transmission-connected to the reduction gearbox 20 to output torque to the reduction gearbox 20, and the reduction gearbox 20 includes at least two input shafts 210 and two output shafts 220. The driving motor 10 is transmission-connected to an input shaft 210 of the reduction gearbox 20 through a coupling, and the reduction gearbox 20 receives the torque through the input shaft 210, then reduces the speed and transmits the torque through the output shaft 220.

[0030] The main machine 30 specifically includes a frame 310 for carrying other components, and a first roller 320 and a second roller 330 rotatably arranged on the frame 310. The first roller 320 and the second roller 330 are arranged at an interval to mix and plasticize the rubber through the gap between the two rollers. The first roller 320 serves as an active roller, which is connected to the power output end for rotation. At the same time, the first roller 320 and the second roller 330 are connected by a speed ratio gear 340, so that the second roller 330 rotates in the opposite direction to the first roller 320 and cooperates in mixing the rubber. At the same time, in order to ensure the installation of personnel and equipment in case of accidents, pull-rope emergency stop devices 350 are also provided on both sides of the top of the frame 310. The pull-rope emergency stop device 350 is pulled to stop the rubber mixing mill directly.

[0031] In the embodiment of the utility model, two main machines 30 are provided, and each output shaft 220 of the reduction box 20 is respectively connected to the first roller 320 in one main machine 30 through a gear coupling 230 to transmit torque to the first roller 320. The gear coupling 230 has a compact structure and a strong load-bearing capacity, so as to stably transmit the torque of the output shaft 220. On the basis of the above structure, starting a single drive motor 10 can drive at least two main machines 30 to operate through the reduction box 20.

[0032] The rubber mixing mill provided by the embodiment of the utility model, on the one hand, has a larger production capacity range, that is, including the working condition of two main machines 30 running at the same time. Similarly, the gear coupling 230 on one main machine 30 that is transmission-connected to the output shaft 220 can also be removed to drive a single main machine 30, including the working condition of a single main machine 30 running; that is, the rubber mixing mill provided by the embodiment of the utility model can conveniently change the production capacity when facing different production capacity requirements in the off-season and peak-season conditions. The switching process does not require a large amount of equipment to be moved, and only the single gear coupling 230 needs to be removed, so the labor cost is lower; on the other hand, in the process of switching the production capacity, the main machine 30 and the drive motor 10, the reduction box 20 and other equipment do not need to be moved, which can make the early rubber mixing mill more free when arranging the equipment in the factory. Relatively speaking, in the rubber mixing mill provided by the embodiment of the utility model, when the two main machines 30 are running at the same time, the floor space is smaller than that of the current two independent rubber mixing mills. Therefore, the embodiment of the utility model can reduce the production cost in the rubber processing process through convenient switching of production capacity and smaller area occupation.

[0033] In order to meet the different mixing and plasticizing requirements of the rubber mixing mill provided by the embodiment of the utility model for the rubber compound, a distance adjusting device 360 ​​is also provided on the frame 310, and the distance adjusting device 360 ​​is used to adjust the interval between the first roller 320 and the second roller 330. The distance adjusting device 360 ​​pushes the second roller 330 toward the first roller 320 or pulls the second roller 330 away from the first roller 320 by rotating the rocker. When the interval between the first roller 320 and the second roller 330 increases, the mixing degree of the rubber compound is weak, and when the interval is too large, the rubber compound The rubber compound cannot be fully mixed, and when the distance between the first roller 320 and the second roller 330 is reduced, the rubber compound is mixed more fully. However, if the distance is too small, the equipment will be severely worn. Therefore, for rubber compounds with different product quality requirements, the distance between the first roller 320 and the second roller 330 can be controlled by the distance adjusting device 360, and different rubber compound product quality requirements can be met by a single rubber mixing mill. At the same time, the distance between the first roller 320 and the second roller 330 can also be adjusted by the distance adjusting device 360 ​​so that it will not be too large or too small to cause loss of materials and equipment.

[0034] It should be noted that the two main machines 30 can independently adjust the distance between the first roller 320 and the second roller 330 through the distance adjusting device 360, so that the two main machines 30 can mix rubber materials of different qualities.

[0035] In the rubber mixing mill provided in the embodiment of the utility model, an input shaft 210 on the reduction box 20 is used for transmission connection with the drive motor 10 to receive the torque transmitted by the drive motor 10, and a brake wheel 240 is fixedly sleeved on the other input shaft 210 of the reduction box 20. The brake wheel 240 is used to dock with the brake, so that when the equipment needs to be moved, the input shaft 210 can be adjusted by the brake to brake the reduction box 20.

[0036] In order to facilitate the equipment setting and improve the convenience of the equipment use process, in some embodiments of the present invention, the two output shafts 220 are coaxially arranged, and the two output shafts 220 are symmetrically arranged about the bisector of the reduction box 20. The two main machines 30 have the same rated power and are symmetrically arranged on both sides of the reduction box 20; correspondingly, the two input shafts 210 are also coaxial and symmetrically arranged about the bisector of the reduction box 20.

[0037] Furthermore, in the rubber mixing mill provided in the embodiment of the utility model, the first roller 320 and the second roller 330 are rotatably connected to the frame 310 via spherical roller bearings and bearing supports, respectively. Specifically, the bearing supports are fixedly embedded in the frame 310, the outer ring of the spherical roller bearings is sleeved in the bearing supports, and the axial ends of the first roller 320 and the second roller 330 are respectively connected to the corresponding inner rings of the spherical roller bearings, so that the first roller 320 and the second roller 330 can stably rotate relative to the frame 310.

[0038] On the basis of the above structure, taking into account that the rubber has a certain fluidity and gap-filling property, in order to prevent the rubber from invading the spherical roller bearing and the bearing support during the mixing of the rubber by the first roller 320 and the second roller 330 and affecting the rotation of the first roller 320 and the second roller 330, a rubber baffle plate 370 is further provided on the bearing support, and the rubber baffle plate 370 is attached to the outer wall of the first roller 320 and the second roller 330 to block and limit the rubber.

[0039] In order to reduce the wear of the equipment and maintain the stability of the equipment during the movement process, the rubber mixing mill provided in the embodiment of the utility model also includes a driving base 40 and a main machine base 50, wherein the driving base 40 is used to carry and fix the driving motor 10 and the reduction box 20, and the main machine base 50 is used to carry the main machine 30, and it should be noted that each main machine 30 has a main machine base 50 to maintain the independence of a single main machine 30, and at the same time, the driving base 40 and each main machine base 50 are connected to form an integral structure by inserting a connecting frame 60 and screws. Connecting the driving base 40 and each main machine base 50 through the connecting frame 60 can enhance the integrity of the equipment, and on the basis of maintaining the stability of the equipment operation, the driving base 40 and the main machine base 50 can be separated by conveniently disassembling the connecting frame 60.

[0040] Furthermore, in the rubber mixing mill provided in the embodiment of the utility model, the axial ends of the first roller 320 and the second roller 330 both extend out of the same side of the frame 310, and the speed ratio gear 340 is sleeved on the axial ends of the first roller 320 and the second roller 330 extending out of the frame 310, so as to facilitate the operator to adjust and inspect the speed ratio gear 340, and further adjust the transmission relationship between the first roller 320 and the second roller 330.

[0041] In order to prevent the exposed speed ratio gear 340 from being bumped or affected by impurities, thereby destroying the transmission relationship between the first roller 320 and the second roller 330, a protective shell 70 is also provided on the outer periphery of the speed ratio gear 340, and the protective shell 70 is fixedly connected to the frame 310 to effectively protect the speed ratio gear 340.

[0042] Furthermore, in the rubber mixing mill provided in the embodiment of the utility model, the coupling used for transmission connection between the drive motor 10 and the input shaft 210 is an elastic pin coupling 80. The elastic pin coupling 80 is easy to install as a transmission component, has certain buffering and shock absorbing performance, and provides a certain shaft offset compensation capability to achieve stable torque transmission between the drive motor 10 and the input shaft 210.

[0043] The terms "first", "second", "left side" and "right side" in the specification and claims of the utility model and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rubber mixing mill, characterized in that: include: A driving motor and a reduction gearbox, wherein the reduction gearbox comprises two input shafts and two output shafts, and the driving motor is drivingly connected to one of the input shafts through a coupling; The main machine comprises a frame, and a first roller and a second roller rotatably arranged on the frame, wherein the first roller and the second roller are arranged at intervals and connected through a speed ratio gear transmission, and rope pull emergency stop devices are arranged on both sides of the top of the frame; Two main machines are provided, and each output shaft of the reduction gearbox is drivingly connected to the first roller in one of the main machines through a gear coupling.

2. The rubber mixing mill according to claim 1, characterized in that: The frame is also provided with a distance adjusting device for adjusting the distance between the first roller and the second roller.

3. The rubber mixing mill according to claim 1, characterized in that: One of the input shafts on the reduction box is used for transmission connection with the driving motor, and the other input shaft is sleeved with a brake wheel, which is used for docking the brake.

4. The rubber mixing mill according to claim 1, characterized in that: The two output shafts are coaxial and symmetrically arranged about the bisecting plane of the reduction box, and the two main machines are symmetrically arranged on both sides of the reduction box; The two input shafts are also coaxial and symmetrically arranged with respect to a bisecting plane of the reduction gearbox.

5. The rubber mixing mill according to claim 1, characterized in that: The first roller and the second roller are rotatably connected to the frame through spherical roller bearings and bearing supports respectively.

6. The rubber mixing mill according to claim 5, characterized in that: The bearing support is also provided with a rubber baffle plate for blocking and limiting the rubber material.

7. The rubber mixing mill according to claim 1, characterized in that: The driving motor and the reduction box are both supported and fixed by the driving base, and the main engine is supported and fixed by the main engine base. The driving base and each main engine base are fixedly connected to form an integrated structure by inserting a connecting frame and screws.

8. The rubber mixing mill according to claim 1, characterized in that: The shaft ends of the first roller and the second roller extend out of one side of the frame, and the speed ratio gear is sleeved on the shaft ends of the first roller and the second roller.

9. The rubber mixing mill according to claim 8, characterized in that: The outer peripheral sleeve of the speed ratio gear is provided with a protective shell fixedly connected to the frame.

10. The rubber mixing mill according to claim 1, characterized in that: The coupling used for transmission connection between the driving motor and the input shaft is an elastic pin coupling.

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