Lower blade device for open mill

Abstract

The utility model discloses a lower blade device for an open mill, which comprises a mounting seat, a supporting box, a blade protection mechanism, a box body and a blade switching mechanism, and the blade protection mechanism comprises a threaded rod, a driving motor, a guide rod, a moving plate, a supporting column and a surrounding baffle, the blade switching mechanism comprises a transmission gear, a rotating motor, a driven gear, a rotating frame and multi-specification blades. The utility model belongs to the technical field of open mills, and particularly relates to an open mill capable of driving a moving plate to move by starting a driving motor, so that each group of multi-specification blades can be conveniently exposed for cutting when a rotating frame descends, and meanwhile, the idle multi-specification blades can be conveniently surrounded by a surrounding plate to prevent mistaken touch when the rotating frame ascends; and the transmission gear and the driven gear can be driven to rotate by starting the rotating motor, so that the multi-specification blades of different specifications can be conveniently and automatically switched to slice rubber.

Description

Technical Field

[0001] The utility model belongs to the technical field of open mills, and particularly relates to a lower blade device for an open mill. Background Art

[0002] An open mill is one of the widely used devices in the rubber tire industry, which is a rubber mixing machine with exposed rollers used to prepare plasticized rubber, mixed rubber, or for hot mixing and profiling. The lower blade device is an important component of the open mill, and the quality of the lower blade device affects the quality of the rubber sheet cutting.

[0003] During the rubber mixing production process, the lower blade devices currently used in open mills are mostly fixedly set with a single specification to cut the rubber sheet. It is inconvenient to be equipped with multi-specification blades that can be automatically switched according to the processing requirements of the open mill to cut the rubber, and it is also inconvenient to automatically lift the blade device to enclose the idle blades to prevent accidental contact and cause safety hazards. Therefore, there is an urgent need for a lower blade device for an open mill to solve the above problems. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that the existing open mill is inconvenient to automatically switch blades of different specifications according to processing requirements to cut the rubber, and at the same time, it is inconvenient to equip a surrounding structure for the idle blades for safety protection against accidental contact.

[0005] To achieve the above functions, the technical solution adopted by the utility model is as follows: A lower blade device for an open mill includes a mounting base, and a support box provided at the bottom of the mounting base. It also includes a blade protection mechanism, the blade protection mechanism is provided on the support box, a box body is fixedly provided on the blade protection mechanism, and it also includes a blade switching mechanism, the blade switching mechanism is provided on the box body.

[0006] To smoothly achieve the purpose of facilitating the automatic lifting of the open mill to enclose the idle blades to prevent accidental contact, the blade protection mechanism includes a threaded rod rotatably connected between the top wall and the bottom wall of the support box, a driving motor for driving the rotation of the threaded rod is fixedly provided on the bottom wall of the support box, another group of guide rods are fixedly provided between the top wall and the bottom wall of the support box, a moving plate fixedly connected to the side wall of the box body is threadedly connected to the threaded rod, and the other group of moving plates are slidably arranged through the guide rods. A support column is fixedly provided on the side wall of the support box, and a surrounding baffle is fixedly connected to the support column.

[0007] To smoothly achieve the purpose of facilitating the open mill to be equipped with and automatically switch multi-specification blades, the blade switching mechanism includes a transmission gear rotatably connected between the two side walls of the box body, a rotating motor for driving the rotation of the transmission gear is fixedly provided on one side wall of the mounting base, a driven gear meshed with the transmission gear is rotatably connected to the side wall of the box body, a rotating frame located outside the side wall of the box body is fixedly provided on the driven gear, and multi-specification blades are bolted at the four corners of the rotating frame.

[0008] Further, bolt holes are provided on the top wall of the mounting seat, an opening for slidably connecting with the moving plate is provided on the side wall of the support box, and a transparent baffle is provided on the surrounding baffle.

[0009] Further, the moving plates are symmetrically arranged at both ends of the box body, and the driven gears and the rotating frames are symmetrically arranged at both ends of the driving gear.

[0010] Preferably, the mounting seat is arranged in an I shape, the surrounding baffle is arranged in a U shape, and the rotating frame is arranged in a cross shape.

[0011] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0012] 1. By starting the driving motor, the moving plate can be driven to move, so that when the rotating frame descends, each group of multi - specification blades can be exposed for cutting work, and at the same time, when the rotating frame ascends, the surrounding baffle can be used to enclose the idle multi - specification blades to prevent accidental contact;

[0013] 2. By starting the rotating motor, the driving gear and the driven gear can be driven to rotate, so as to conveniently and automatically switch different - specification multi - specification blades for slicing rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of a lower blade device for an internal mixer proposed in this solution;

[0015] Figure 2 is a cross - sectional view of a lower blade device for an internal mixer proposed in this solution;

[0016] Figure 3 is a schematic structural view of another angle of a lower blade device for an internal mixer proposed in this solution;

[0017] Figure 4 is a cross - sectional view of another angle of a lower blade device for an internal mixer proposed in this solution.

[0018] Among them, 1. Mounting seat; 2. Support box; 3. Blade protection mechanism; 4. Box body; 5. Blade switching mechanism; 6. Threaded rod; 7. Driving motor; 8. Guide rod; 9. Moving plate; 10. Support pillar; 11. Surrounding baffle; 12. Driving gear; 13. Rotating motor; 14. Driven gear; 15. Rotating frame; 16. Multi - specification blade.

[0019] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figure 1 shown, in order to achieve the above functions, the technical solution adopted by the present utility model is as follows: a lower blade device for an open mill, including a mounting seat 1, bolt holes are provided on the top wall of the mounting seat 1, the mounting seat 1 is arranged in an I-shape, and a support box 2 is arranged at the bottom of the mounting seat 1. It further includes a blade protection mechanism 3, the blade protection mechanism 3 is arranged on the support box 2, a box body 4 is fixedly arranged on the blade protection mechanism 3, and it further includes a blade switching mechanism 5, the blade switching mechanism 5 is arranged on the box body 4.

[0022] As Figures 2 - 3 shown, the blade protection mechanism 3 includes a threaded rod 6 rotatably connected between the top wall and the bottom wall of the support box 2, a driving motor 7 for driving the rotation of the threaded rod 6 is fixedly arranged on the bottom wall of the support box 2, another set of guide rods 8 are fixedly arranged between the top wall and the bottom wall of the support box 2, a moving plate 9 fixedly connected to the side wall of the box body 4 is threadedly connected to the threaded rod 6, the moving plates 9 are symmetrically arranged at both ends of the box body 4, an opening for sliding connection with the moving plate 9 is provided on the side wall of the support box 2, another set of moving plates 9 are slidably arranged through the guide rod 8, a support column 10 is fixedly arranged on the side wall of the support box 2, a surrounding baffle 11 is fixedly connected to the support column 10, a transparent baffle is provided on the surrounding baffle 11, and the surrounding baffle 11 is arranged in a U-shape.

[0023] As Figure 1 、 2 and 4 shown, the blade switching mechanism 5 includes a transmission gear 12 rotatably connected between the two side walls of the box body 4, a rotating motor 13 for driving the rotation of the transmission gear 12 is fixedly arranged on one side wall of the mounting seat 1, a driven gear 14 rotatably connected to the side wall of the box body 4 is meshed with the transmission gear 12, a rotating frame 15 located outside the side wall of the box body 4 is fixedly arranged on the driven gear 14, the driven gear 14 and the rotating frame 15 are symmetrically arranged at both ends of the transmission gear 12, the rotating frame 15 is arranged in a cross shape, and multi-specification blades 16 are bolted at the four corners of the rotating frame 15.

[0024] During specific use, the user can install and fix this device inside the open mill by passing a bolt through the bolt hole on the mounting seat 1. When the multi-specification blades 16 are idle, start the driving motor 7 to rotate it forward, which can drive the threaded rod 6 to rotate forward. Then, the moving plate 9 moves upward along the guide rod 8, driving the box body 4 to rise. This is convenient for driving each group of multi-specification blades 16 to rise within the range surrounded by the baffle 11, thus preventing the user from accidentally touching the multi-specification blades 16 and improving safety. When it is necessary to slice the rubber of the open mill, the driving motor 7 can be started to rotate it in reverse, then the threaded rod 6 rotates in reverse, driving the box body 4 to descend, so that it is convenient for the multi-specification blades 16 to move out of the baffle 11 for work. Start the rotating motor 13 to drive the transmission gear 12 to rotate, then the driven gear 14 meshes and rotates to drive the rotating frame 15 to rotate, thus facilitating the switching of different multi-specification blades 16 to move to the bottom to meet different slicing requirements. The above is the entire usage process of the lower blade device for the open mill.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0027] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A lower blade device for an open mill, comprising a mounting seat and a support box arranged at the bottom of the mounting seat, characterized in that: It also includes a blade protection mechanism, which is arranged on the support box, on which a box body is fixedly arranged, and a blade switching mechanism, which is arranged on the box body.

2. A lower blade device for an open mixing mill according to claim 1, characterized in that: The blade protection mechanism includes a threaded rod rotatably connected between the top wall and the bottom wall of the support box, a driving motor for driving the threaded rod to rotate is fixedly provided on the bottom wall of the support box, another group of guide rods are fixedly provided between the top wall and the bottom wall of the support box, a movable plate fixedly connected to the side wall of the box body is threadedly connected to the threaded rod, another group of movable plates are slidably provided on the guide rod, a pillar is fixedly provided on the side wall of the support box, and a baffle plate is fixedly connected to the pillar.

3. A lower blade device for an open mixing mill according to claim 2, characterized in that: The blade switching mechanism includes a transmission gear rotatably connected between two side walls of the box body, a rotating motor for driving the transmission gear to rotate is fixedly provided on one side wall of the mounting seat, the transmission gear is meshedly connected with a driven gear rotatably connected to the side wall of the box body, the driven gear is fixedly provided with a rotating frame located outside the side wall of the box body, and blades of multiple specifications are bolted to the four corners of the rotating frame.

4. A lower blade device for an open mixing mill according to claim 3, characterized in that: The top wall of the mounting seat is provided with bolt holes, the side walls of the support box are provided with openings slidably connected to the moving plate, and the enclosure plate is provided with a transparent baffle.

5. A lower blade device for an open mixing mill according to claim 4, characterized in that: The movable plates are symmetrically arranged at two ends of the box body, and the driven gear and the rotating frame are symmetrically arranged at two ends of the transmission gear.

6. A lower blade device for an open mixing mill according to claim 5, characterized in that: The mounting seat is arranged in an I-shape, the baffle plate is arranged in a U-shape, and the rotating frame is arranged in a cross shape.

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