A discharging structure and a mixer

Abstract

The present invention discloses a discharging structure and a mixer applying the discharging structure. The discharging structure includes a bottom plate, a frame, a rotary driving device, a fixing plate and a discharging rotating shaft. Among them, a shaft hole for the discharging rotating shaft to pass through is provided on the fixing plate; on one side of the fixing plate facing the frame, an annular boss is provided, the annular boss is coaxially arranged with the shaft hole, and the top end of the annular boss is connected to the frame; an annular groove extending away from the frame is provided at the top end of the annular boss; at one end of the fixing plate in contact with the bottom plate, a supporting boss facing the rotary driving device is provided, and the supporting boss is in contact with the side wall of the rotary driving device. The technical solution of the present invention can effectively solve the problems of axial movement and radial swing of the discharging rotating shaft during the operation of the discharging structure, and improves the working reliability of the mixer.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber production equipment, and particularly relates to a discharging structure and a mixer. Background Art

[0002] Mixers are mainly used for the plasticizing and mixing of rubber, and can also be used for the mixing of plastics, asphalt materials, felt materials, ceramic materials and various synthetic resins. During the working process of the mixer, it is necessary to intermittently start the discharging device to realize the cycle of discharging and loading of the mixer. Most of the existing mixers adopt a falling-type discharging device. As Figure 1 shown, the structure of this discharging device is mainly that the rotary driving device 8' is mainly connected to the fixing plate 2' through fastening bolts and positioned with the fixing plate 2' through a positioning key 7'; the fixing plate 2' is connected and positioned through fastening bolts 3' and positioning pins 6', such a connection makes the rotary driving device fixed on the frame 9', and the frame 9' is connected and fixed to the operation platform with the bottom plate 1'; the rotary driving device 8' is connected to the discharging rotating shaft 5' through a spline. During the working process of this structure, the discharging rotating shaft 5' is subjected to a large axial force and torque, so the discharging rotating shaft 5' will show phenomena such as axial movement and radial swing as shown by the arrow in Figure 1 . After long-term use, the rotary driving device 8' will jump, and the positioning key 7' and the fastening bolts 3' will loosen and fall off, affecting the working reliability of the mixer. Summary of the Invention

[0003] The main object of the present invention is to provide a discharging structure and a mixer applying this structure, aiming to improve the working reliability of the mixer.

[0004] To achieve the above object, a discharging structure proposed by the present invention includes:

[0005] A bottom plate;

[0006] A frame, fixedly arranged on the bottom plate;

[0007] A rotary driving device, arranged above the bottom plate;

[0008] A fixing plate, arranged on the bottom plate and one end of which is in contact with the bottom plate, and both sides of the fixing plate are detachably connected to the frame and the rotary driving device respectively;

[0009] A discharging rotating shaft, pivotally connected to the frame and one end of which is connected to the rotary driving device; wherein,

[0010] The fixed plate is provided with a shaft hole for the discharge rotating shaft to pass through; on one side of the fixed plate facing the frame, an annular boss is provided, the annular boss is coaxially arranged with the shaft hole, and the top end of the annular boss is in contact with the frame; the top end of the annular boss is provided with an annular groove extending away from the frame; one end of the fixed plate in contact with the bottom plate is provided with a support boss facing the rotary driving device, and the support boss is in contact with the side wall of the rotary driving device.

[0011] Preferably, the discharge rotating shaft further has a shoulder, and one side of the shoulder is adapted to the annular groove.

[0012] Preferably, the discharge structure further includes a positioning ring, and the positioning ring is in contact with the other side of the annular groove that is opposite to the shoulder in contact with the annular groove.

[0013] Preferably, the rotary driving device includes a driving oil cylinder, and the driving oil cylinder is connected to the discharge rotating shaft through a rack and pinion transmission device.

[0014] Preferably, the rotary driving device includes two or four opposed driving oil cylinders, and the driving oil cylinder is connected to the discharge rotating shaft through a rack and pinion transmission device.

[0015] Preferably, the rotary driving device is connected to the other end of the fixed plate provided with the support boss through a positioning key.

[0016] Preferably, one end of the fixed plate provided with the positioning key is connected to the frame through a positioning pin, and the other end is connected to the frame through a fastening bolt.

[0017] The present invention also provides a mixer, and the mixer includes the discharge structure as described above.

[0018] In the technical solution of the present invention, the discharge structure includes a bottom plate, a frame, a rotary driving device, a fixed plate and a discharge rotating shaft. Among them, the fixed plate is provided with a shaft hole for the discharge rotating shaft to pass through; on one side of the fixed plate facing the frame, an annular boss is provided, the annular boss is coaxially arranged with the shaft hole, and the top end of the annular boss is in contact with the frame; the top end of the annular boss is provided with an annular groove extending away from the frame; one end of the fixed plate in contact with the bottom plate is provided with a support boss facing the rotary driving device, and the support boss is in contact with the side wall of the rotary driving device. Through the above design, when the discharge structure works, the problems of axial movement and radial swing of the discharge rotating shaft can be effectively solved, and the working reliability of the mixer is improved. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Schematic diagram of the unloading structure in the prior art

[0021] Figure 2 Schematic diagram of the unloading structure of the present invention;

[0022] Figure 3 Schematic diagram of the fixed plate structure of the present invention;

[0023] Figure 4 For Figure 3 Cross-sectional view.

[0024] Explanation of the reference numerals in the drawings:

[0025] Label Name Label Name 1’、1 Bottom plate 4 Positioning ring 2’、2 Fixed plate 5’、5 Unloading rotating shaft 21 Shaft hole 51 Shoulder 22 Annular boss 6’、6 Positioning pin 23 Annular groove 7’、7 Positioning key 24 Support boss 8’、8 Rotary drive device 3’、3 Fastening bolt 9’、9 Frame

[0026] The realization of the object of the present invention, functional features and advantages will be further described in conjunction with the embodiments with reference to the drawings. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0029] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present invention, unless otherwise clearly specified or limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Please refer to Figures 2 to 4 , in an embodiment of the present invention, the discharging structure includes a bottom plate 1, a frame 9, a rotary driving device 8, a fixing plate 2, and a discharging rotating shaft 5. One end of the fixing plate 2 is in contact with the bottom plate 1, and both sides of the fixing plate 2 are detachably connected to the frame 9 and the rotary driving device 8 respectively; the discharging rotating shaft 5 is pivotally connected to the frame 9, and one end thereof is connected to the rotary driving device 8. The bottom plate 1, the frame 9, the rotary driving device 8, and the fixing plate 2 in this embodiment are all immovable parts. The bottom plate 1 and the frame 9 serve as the support framework of the entire structure, and the two can form a non-detachable structure through connection methods such as welding, or a detachable structure through bolt connection or the like. The rotary driving device 8 is connected and fixed to the frame 9 through the fixing plate 2. For the convenience of assembly and maintenance, the connections between the rotary driving device 8, the fixing plate 2, and the frame 9 are all detachable. In addition, the discharging rotating shaft 5 in this embodiment is driven by the rotary driving device 8 to open / close the discharging door (not shown in the figure) of the discharging device to make the material fall, and at the same time, the discharging rotating shaft 5 can be rotatably connected to the frame 9 through bearings or bushings. The rotary driving device 8 can adopt devices such as a rotary motor, a swash plate piston pump, or an oil cylinder to rotate the discharging rotating shaft 5.

[0033] In order to prevent the phenomenon of axial movement and radial swing of the discharging rotating shaft 5 during the discharging process, in this embodiment, the fixing plate 2 in the discharging structure is mainly improved and optimized. Specifically, in combination with Figure 3 , Figure 4, a shaft hole 21 for the discharge rotating shaft 5 to pass through is provided on the fixed plate 2; on one side of the fixed plate 2 facing the frame 9, an annular boss 22 is provided, and the annular boss 22 is coaxially arranged with the shaft hole 21. The top end of the annular boss 22 is connected to the frame 9, so that the fixed plate 2 is embedded in the frame 9 to prevent swinging in the radial direction of the discharge rotating shaft 5; an annular groove 23 extending away from the frame 9 is provided at the top end of the annular boss 22; at one end of the fixed plate 2 in contact with the bottom plate 1, a support boss 24 facing the rotary driving device 8 is provided, and the support boss 24 is in contact with the side wall of the rotary driving device 8, so that the rotary driving device 8 can effectively avoid swinging in the radial direction of the discharge rotating shaft 5. Through the above design, when the discharge structure works, the problems of axial movement and radial swing of the discharge rotating shaft 5 can be effectively solved, and the working reliability of the internal mixer is improved.

[0034] Specifically, the discharge rotating shaft 5 further has a shoulder 51, and one side of the shoulder 51 is adapted to the annular groove 23; and the discharge structure further includes a positioning ring 4, and the positioning ring 4 is in contact with the other side of the shoulder 51 opposite to the annular groove 23. The positioning ring 4 is embedded in the frame 9, and cooperates with the annular groove 23 on the fixed plate 2 to clamp and fix the shoulder 51, forming an axial limit for the discharge rotating shaft 5 to further improve the working reliability of the discharge structure.

[0035] As a preferred embodiment, the rotary driving device 8 includes a driving oil cylinder, and the driving oil cylinder is connected to the discharge rotating shaft 5 through a rack and pinion transmission device (not shown in the figure).

[0036] In this embodiment, a driving oil cylinder is used as the driving execution device of the discharge rotating shaft 5, which has the advantages of simple structure and reliable operation. Moreover, when the working load of the discharge rotating shaft 5 is small, that is, the weight of the discharge door structure driven by it is not large, only one driving oil cylinder can be used to drive the discharge rotating shaft 5 to reduce costs and energy consumption. The rod end of the driving oil cylinder is connected to a rack, and the linear reciprocating motion of the driving oil cylinder is converted into a rotary motion by the rack driving the gear meshing with the rack, and then the gear drives the discharge rotating shaft 5.

[0037] As another preferred embodiment, the rotary driving device 8 includes two or four opposed driving oil cylinders, and the driving oil cylinders are connected to the discharge rotating shaft 5 through a rack and pinion transmission device. When the working load of the discharge rotating shaft 5 is large, that is, the weight of the discharge door structure driven by it is large, an even number of driving oil cylinders, such as two or four driving oil cylinders, can be symmetrically placed to drive the discharge rotating shaft 5 to ensure the reliable operation of the discharge structure.

[0038] As a preferred embodiment, the rotary drive device 8 is connected to the other end of the fixed plate 2 having a support boss 24 via a positioning key 7; and, one end of the fixed plate 2 provided with the positioning key 7 is connected to the frame 9 via a positioning pin 6, and the other end is connected to the frame 9 via a fastening bolt 3. Through the above detachable design, it is very convenient for the daily disassembly and maintenance of the discharging structure.

[0039] The present invention also provides a mixer, and the mixer includes the discharging structure as described in the above embodiments. The specific structure of the discharging structure refers to the above embodiments. Since this mixer adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0040] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A discharging structure, characterized in that, it comprises: a bottom plate; a frame, fixedly arranged on the bottom plate; a rotary driving device, arranged above the bottom plate; a fixing plate, arranged on the bottom plate and having one end in contact with the bottom plate, and both sides of the fixing plate are detachably connected to the frame and the rotary driving device respectively; a discharging rotating shaft, pivotally connected to the frame and having one end connected to the rotary driving device; wherein, a shaft hole for the discharging rotating shaft to pass through is arranged on the fixing plate; an annular boss is arranged on one side of the fixing plate facing the frame, the annular boss is coaxially arranged with the shaft hole, and the top end of the annular boss is in contact with the frame; an annular groove extending away from the frame is arranged at the top end of the annular boss; a supporting boss facing the rotary driving device is arranged at one end of the fixing plate in contact with the bottom plate, and the supporting boss is in contact with the side wall of the rotary driving device; the discharging rotating shaft further has a shoulder, and one side of the shoulder is adapted to the annular groove; the discharging structure further comprises a positioning ring, and the positioning ring is in contact with the other side of the shoulder opposite to the side contacting the annular groove; the rotary driving device is connected to the other end of the fixing plate provided with the supporting boss through a positioning key.

2. The discharging structure according to claim 1, characterized in that, the rotary driving device comprises a driving oil cylinder, and the driving oil cylinder is connected to the discharging rotating shaft through a rack and pinion transmission device.

3. The discharging structure according to claim 1, characterized in that, the rotary driving device comprises two or four opposed driving oil cylinders, and the driving oil cylinders are connected to the discharging rotating shaft through a rack and pinion transmission device.

4. The discharging structure according to claim 1, characterized in that, one end of the fixing plate provided with the positioning key is connected to the frame through a positioning pin, and the other end is connected to the frame through a fastening bolt.

5. An internal mixer, characterized in that, the internal mixer comprises the discharging structure according to any one of claims 1 to 4.

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