Polypropylene fiber concrete mixing device

Abstract

The utility model discloses a polypropylene fiber concrete mixing device, which belongs to the field of concrete preparation, and comprises a rack, a mixing device and a mixing device, the stirring chamber is in a hollow cylindrical shape, the stirring chamber is horizontally arranged on the machine frame in the left-right direction, a discharging opening is formed in the upper end of the stirring chamber, a discharging opening is formed in the lower end of the stirring chamber, a cleaning opening is formed in the right end of the stirring chamber, a cleaning cover plate covers the cleaning opening, and the cleaning cover plate is rotatably arranged on the stirring chamber; the stirring shaft is rotatably arranged in the stirring cavity, and the stirring shaft is arranged at the axis position of the stirring cavity in the left-right direction; the driving mechanism is arranged on the rack, the driving mechanism penetrates through the left end face of the stirring cavity, the left end of the stirring shaft is detachably connected with the driving mechanism, and when the interior of the stirring cavity needs to be cleaned, the cleaning cover plate is rotationally opened, and the stirring shaft is detached from the driving mechanism and pulled out from the cleaning opening for cleaning.

Description

Technical Field

[0001] The utility model relates to the field of concrete preparation, in particular to a polypropylene fiber concrete mixing device. Background Art

[0002] Concrete is an artificial material composed of water, cement, aggregates and appropriate additives. The production process of concrete includes mixing cement, aggregates and additives in a certain proportion, and then adding an appropriate amount of water to form a uniform paste. The paste is poured into a mold and gradually hardens into concrete through the hydration reaction of cement within a certain period of time. The hardened concrete has high compressive strength and durability and can be used for various structures of buildings and infrastructure.

[0003] Polypropylene fiber concrete is a kind of concrete material with polypropylene fibers added to traditional concrete. These fibers are evenly distributed in the concrete in an independent and dispersed form and interact with the cement matrix. When using the existing mixing device to stir polypropylene fiber concrete, due to fiber curing and blockage, it is easy to cause the mixing device to malfunction. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a polypropylene fiber concrete mixing device, which can facilitate the cleaning of the interior and avoid fiber curing and blockage.

[0005] The polypropylene fiber concrete mixing device according to the embodiment of the utility model includes: a frame; a stirring chamber, which is in a hollow cylindrical shape and lies horizontally on the frame in the left-right direction. A feeding port is arranged at the upper end of the stirring chamber, a discharging port is arranged at the lower end of the stirring chamber, and a cleaning opening is arranged at the right end of the stirring chamber. A cleaning cover plate is covered on the cleaning opening, and the cleaning cover plate is rotatably arranged on the stirring chamber; a stirring shaft, which is rotatably arranged in the stirring chamber and is arranged along the left-right direction at the axial center position of the stirring chamber; a driving mechanism, which is arranged on the frame and penetrates through the left end face of the stirring chamber. The left end of the stirring shaft is detachably connected to the driving mechanism. When it is necessary to clean the interior of the stirring chamber, the cleaning cover plate is rotated and opened, the stirring shaft is detached from the driving mechanism and pulled out from the cleaning opening for cleaning.

[0006] The polypropylene fiber concrete mixing device according to the embodiment of the utility model has at least the following beneficial effects: The polypropylene fiber concrete mixing device enables the stirring shaft to be conveniently and quickly disassembled and installed through the quick disassembly and assembly structure between the stirring shaft and the driving mechanism. After the stirring shaft is removed, it is easier to clean the interior of the stirring chamber and the stirring shaft, and the cleaning work is also safer, avoiding equipment failures caused by fiber curing and blockage.

[0007] According to some embodiments of the present utility model, there are two blanking ports, and the two blanking ports are respectively used for blanking of aggregates and polypropylene fibers.

[0008] According to some embodiments of the present utility model, a support shaft is arranged at the axial center position of the stirring chamber, the stirring shaft is of a hollow structure, and the stirring shaft is sleeved on the support shaft.

[0009] According to some embodiments of the present utility model, the driving mechanism includes an annular positioning groove, and the stirring shaft is installed in the annular positioning groove.

[0010] According to some embodiments of the present utility model, a first fastening portion is arranged in the annular positioning groove, a second fastening portion is arranged at the end of the stirring shaft, and after the stirring shaft is installed in the annular positioning groove, the first fastening portion and the second fastening portion are fastened by rotation to lock the stirring shaft.

[0011] According to some embodiments of the present utility model, the first fastening portion includes an unlocking groove and a locking groove, the second fastening portion includes a locking cap, the size of the unlocking groove is larger than the size of the locking cap, the size of the locking groove is smaller than the size of the locking cap, when the stirring shaft is inserted into the annular positioning groove, the locking cap is aligned with the unlocking groove; after the stirring shaft is inserted in place, the stirring shaft is rotated to make the locking cap slide into the locking groove.

[0012] According to some embodiments of the present utility model, a first threaded portion is arranged in the annular positioning groove, a second threaded portion is arranged at the end of the stirring shaft, and the stirring shaft is screwed into the annular positioning groove, and the stirring shaft is locked by the cooperation of the first threaded portion and the second threaded portion.

[0013] According to some embodiments of the present utility model, a plurality of stirring blades are arranged radially along the stirring shaft.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 is a schematic structural diagram of a polypropylene fiber concrete mixing device according to an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 the internal structural diagram of

[0018] Figure 3 is Figure 2 the exploded schematic diagram of removing the stirring shaft;

[0019] Figure 4 is Figure 3Partial enlarged view at position A in [the figure];

[0020] Figure 5 is Figure 3 front view of

[0021] Figure 6 is Figure 5 partial enlarged view at position B in [the figure].

[0022] Reference signs:

[0023] frame 100;

[0024] mixing chamber 200; material discharge opening 210; discharge port 220; cleaning cover plate 230; support shaft 240;

[0025] agitating shaft 300; lock nut 310; agitating blades 320;

[0026] driving mechanism 400; annular positioning groove 420; unlocking groove 430; locking groove 440. Detailed implementation manners

[0027] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0029] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the recited number, and above, below, within, etc. are understood as including the recited number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, words such as set, install, connect, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0031] Refer toFigures 1 to 6 Describe a polypropylene fiber concrete mixing device according to an embodiment of the present utility model.

[0032] As Figures 1 to 6 Shown in the figure, the polypropylene fiber concrete mixing device according to the embodiment of the present utility model includes: a frame 100; a stirring chamber 200, the stirring chamber 200 is in a hollow cylindrical shape, the stirring chamber 200 lies horizontally on the frame 100 in the left-right direction, a feeding port 210 is provided at the upper end of the stirring chamber 200, a discharge port 220 is provided at the lower end of the stirring chamber 200, a cleaning opening is provided at the right end of the stirring chamber 200, a cleaning cover plate 230 is covered on the cleaning opening, and the cleaning cover plate 230 is rotatably provided on the stirring chamber 200; a stirring shaft 300, the stirring shaft 300 is rotatably provided in the stirring chamber 200, the stirring shaft 300 is arranged at the axial center position of the stirring chamber 200 in the left-right direction; a driving mechanism 400, the driving mechanism 400 is provided on the frame 100, the driving mechanism 400 penetrates the left end face of the stirring chamber 200, and the left end of the stirring shaft 300 is detachably connected to the driving mechanism 400. When it is necessary to clean the inside of the stirring chamber 200, rotate and open the cleaning cover plate 230, detach the stirring shaft 300 from the driving mechanism 400 and draw it out from the cleaning opening for cleaning.

[0033] As Figures 1 to 6 Shown in the figure, the cylindrical stirring chamber 200 lies horizontally on the frame 100 in the left-right direction, and two feeding ports 210 are opened at the upper end of the stirring chamber 200, and the two feeding ports 210 are respectively used for feeding aggregates and polypropylene fibers. By feeding materials through two different feeding ports 210 and at different feeding times, the formation of polypropylene fiber lumps can be avoided. A support shaft 240 is fixed at the axial center position of the stirring chamber 200, a rotatable stirring shaft 300 is sleeved on the support shaft 240, and the stirring shaft 300 is in transmission connection with the driving mechanism 400 arranged on the left side of the stirring chamber 200. A plurality of stirring blades 320 are arranged radially along the stirring shaft 300. Thus, the driving mechanism 400 drives the stirring shaft 300 to rotate, and the stirring blades 320 on the stirring shaft 300 stir and mix the materials in the stirring chamber 200.

[0034] A cleaning opening is provided at the right end of the stirring chamber 200, and a flip-up cleaning cover plate 230 is covered on the cleaning opening. When the polypropylene fiber concrete mixing device is operating, the cleaning cover plate 230 closes the cleaning opening, and the materials are put into the stirring chamber 200 from the feeding port 210. After being fully stirred by the stirring shaft 300, they are discharged from the discharge port 220 at the lower end of the stirring chamber 200. After the stirring work is completed, flip the cleaning cover plate 230 outwards to open the cleaning opening, and draw the stirring shaft 300 sleeved on the support shaft 240 to the right, which is convenient for cleaning the stirring shaft 300 and the inside of the stirring chamber 200.

[0035] During the operation of the device, the support shaft 240 supports the stirring shaft 300, preventing the stirring shaft 300 from deforming or shaking, which may affect the stirring effect. When cleaning the device, the stirring shaft 300 can be pulled out to the right along the support shaft 240, improving the convenience of disassembling the stirring shaft 300.

[0036] As Figures 2 to 6 shown, the driving mechanism 400 includes an annular positioning groove 420, and the stirring shaft 300 is installed in the annular positioning groove 420. A first fastening portion is provided in the annular positioning groove 420, and a second fastening portion is provided at the end of the stirring shaft 300. After the stirring shaft 300 is installed in the annular positioning groove 420, the first fastening portion and the second fastening portion are fastened by rotation to lock the stirring shaft 300. The first fastening portion includes an unlocking groove 430 and a locking groove 440, and the second fastening portion includes a locking cap 310. The size of the unlocking groove 430 is larger than that of the locking cap 310, and the size of the locking groove 440 is smaller than that of the locking cap 310. When the stirring shaft 300 is inserted into the annular positioning groove 420, the locking cap 310 is aligned with the unlocking groove 430; after the stirring shaft 300 is inserted in place, the stirring shaft 300 is rotated to make the locking cap 310 slide into the locking groove 440. At this time, since the size of the locking groove 440 is smaller than that of the locking cap 310, the axial movement of the stirring shaft 300 is limited. The rotation direction of the stirring shaft 300 that makes the locking cap 310 slide from the unlocking groove 430 into the locking groove 440 is opposite to the rotation direction of the stirring shaft 300 during operation, preventing the stirring shaft 300 from loosening or coming off during operation. When the stirring shaft 300 needs to be disassembled and cleaned, when viewed from right to left, the stirring shaft 300 is rotated counterclockwise, causing the locking cap 310 on the stirring shaft 300 to rotate counterclockwise, so that the locking groove 440 slides towards the unlocking groove 430. Since the size of the unlocking groove 430 is larger than that of the locking cap 310, the stirring shaft 300 is axially unlocked at this time, and the stirring shaft 300 is pulled out to the right.

[0037] It can be understood that the stirring shaft 300 can also be locked with the driving mechanism 400 in other ways. For example, it can be locked by means of thread fitting. A first thread portion is provided in the annular positioning groove 420, and a second thread portion is provided at the end of the stirring shaft 300. The stirring shaft 300 is screwed into the annular positioning groove 420, and the stirring shaft 300 is locked by the cooperation of the first thread portion and the second thread portion. The tightening direction of the stirring shaft 300 is opposite to the rotation direction during operation, preventing the stirring shaft 300 from loosening during operation.

[0038] In summary, through the quick disassembly and assembly structure between the stirring shaft 300 and the driving mechanism 400 of this polypropylene fiber concrete mixing device, the stirring shaft 300 can be disassembled and installed conveniently and quickly. After the stirring shaft 300 is removed, it is easier to clean the inside of the stirring chamber 200 and the stirring shaft 300, and the cleaning work is also safer, avoiding equipment failures caused by fiber curing and blockage.

[0039] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A polypropylene fiber concrete mixing device, characterized in that: include: Rack(100); A stirring chamber (200), the stirring chamber (200) is in the shape of a hollow cylinder, the stirring chamber (200) lies horizontally on the frame (100) in the left-right direction, a feeding port (210) is arranged at the upper end of the stirring chamber (200), a discharging port (220) is arranged at the lower end of the stirring chamber (200), a cleaning opening is arranged at the right end of the stirring chamber (200), a cleaning cover plate (230) is arranged on the upper cover of the cleaning opening, and the cleaning cover plate (230) is rotatably arranged on the stirring chamber (200); A stirring shaft (300), the stirring shaft (300) being rotatably disposed in the stirring chamber (200), the stirring shaft (300) being disposed at the axial center position of the stirring chamber (200) along the left-right direction; A driving mechanism (400) is arranged on the frame (100), the driving mechanism (400) passes through the left end surface of the stirring chamber (200), and the left end of the stirring shaft (300) is detachably connected to the driving mechanism (400). When it is necessary to clean the inside of the stirring chamber (200), the cleaning cover (230) is rotated to open, and the stirring shaft (300) is removed from the driving mechanism (400) and pulled out from the cleaning opening for cleaning.

2. The polypropylene fiber concrete mixing device according to claim 1, characterized in that: Two discharge ports (210) are provided, and the two discharge ports (210) are used for discharge of aggregate and polypropylene fibers respectively.

3. The polypropylene fiber concrete mixing device according to claim 1, characterized in that: A support shaft (240) is arranged at the axial center of the stirring chamber (200); the stirring shaft (300) is a hollow structure; and the stirring shaft (300) is sleeved on the support shaft (240).

4. The polypropylene fiber concrete mixing device according to claim 3, characterized in that: The driving mechanism (400) comprises an annular positioning groove (420), and the stirring shaft (300) is installed in the annular positioning groove (420).

5. The polypropylene fiber concrete mixing device according to claim 4, characterized in that: A first buckling portion is provided in the annular positioning groove (420), and a second buckling portion is provided at the end of the stirring shaft (300). After the stirring shaft (300) is installed in the annular positioning groove (420), the first buckling portion and the second buckling portion are buckled by rotation to lock the stirring shaft (300).

6. The polypropylene fiber concrete mixing device according to claim 5, characterized in that: The first buckling portion comprises an unlocking groove (430) and a locking groove (440), and the second buckling portion comprises a locking cap (310). The size of the unlocking groove (430) is larger than the size of the locking cap (310), and the size of the locking groove (440) is smaller than the size of the locking cap (310). When the stirring shaft (300) is inserted into the annular positioning groove (420), the locking cap (310) is aligned with the unlocking groove (430); after the stirring shaft (300) is inserted into place, the stirring shaft (300) is rotated so that the locking cap (310) is inserted into the locking groove (440).

7. The polypropylene fiber concrete mixing device according to claim 4, characterized in that: A first threaded portion is provided in the annular positioning groove (420), and a second threaded portion is provided at the end of the stirring shaft (300). The stirring shaft (300) is screwed into the annular positioning groove (420), and the first threaded portion cooperates with the second threaded portion to lock the stirring shaft (300).

8. The polypropylene fiber concrete mixing device according to claim 1, characterized in that: A plurality of stirring blades (320) are arranged radially along the stirring shaft (300).

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