Quantitative discharging device for concrete processing

Abstract

The utility model provides a quantitative discharging device for concrete processing, and belongs to the technical field of concrete processing. The device comprises a stirring bin, a slow flow channel and a periodic quantitative bin. Wherein the stirring bin is provided with a concrete outflow port; the slow flow channel is communicated with the flow outlet and is inclined to the stirring bin; the periodic quantitative bin is communicated with the slow flow channel, a discharging port is formed in the periodic quantitative bin and covered with a valve body, the valve body can reciprocate at a constant speed, and when the valve body completely covers the discharging port, discharging of concrete is stopped. According to the concrete quantitative feeding device, the concrete is quantified in the discharging process through the periodic quantitative bin, the blocking phenomenon is not prone to being caused through constant-speed reciprocating movement, and due to the action between mechanical parts, the reliability is higher than that of an electromagnetic flowmeter.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of concrete processing, more particularly, relate to a quantitative discharging device for concrete processing. BACKGROUND

[0002] The technical field of concrete processing covers the entire production process from raw materials to final products. It includes concrete formulation design, processing, mixing, discharging, transportation, pouring and curing. The development of technology has made continuous progress in strength, durability and aesthetics of concrete, adapting to the needs of various buildings and infrastructure. Modern technology not only improves production efficiency, but also improves the work performance and environmental impact of concrete. High-performance concrete, self-repairing concrete and recycling of concrete are the current research focus. The progress of concrete processing technology promotes the development of construction engineering and promotes the realization of sustainable construction.

[0003] The concrete discharging link refers to the transfer of fully mixed concrete to the outer end of the mixer through the discharging device. In the prior art, since quantitative setting is required during concrete discharging, Patent No. CN217020952U discloses a high-efficiency quantitative discharging bin for concrete processing. The patent adds a concrete electromagnetic flowmeter outside the discharging bin to achieve the purpose of quantitative discharging. However, the product disclosed in the above patent has the problem that the cavity of the electromagnetic flowmeter is easily blocked during long-term quantitative discharging of concrete, which further damages the electromagnetic flowmeter and is not conducive to the external discharging of concrete. At the same time, since concrete is not a pure fluid substance, the accuracy of the electromagnetic flowmeter in quantifying the solid-liquid mixed substance of concrete is not high. Compared with mechanical valves, the reliability of electromagnetic valves is poor. UTILITY MODEL CONTENTS

[0004] The main purpose of the present application is to provide a quantitative discharging device for concrete processing, which can quantify the concrete during discharging and solve the technical problems of easy cavity blockage and poor reliability in the above-mentioned patent.

[0005] To achieve the above-mentioned purpose, the present application provides a quantitative discharging device for concrete processing, comprising:

[0006] The mixing bin is provided with a concrete outlet;

[0007] The slow-flow channel is in communication with the outlet and is inclined to the mixing bin;

[0008] Periodic ration bin, which is communicated with the slow flow channel, wherein a discharge port is arranged in the periodic ration bin, a valve body is arranged on the discharge port, and the valve body can reciprocate at a uniform speed, and when the valve body completely covers the discharge port, the concrete stops discharging.

[0009] Further, the periodic ration bin is provided with a receiving cavity and a control cavity, and a partition plate is arranged between the receiving cavity and the control cavity.

[0010] The receiving cavity is communicated with the slow flow channel, and a driving member is arranged in the control cavity, one end of the driving member is fixedly connected with the valve body through the partition plate, and the driving member is sealingly connected with the partition plate.

[0011] The partition plate can divide the periodic ration bin into two chambers, and the driving member can drive the valve body to reciprocate at a uniform speed, thereby realizing the quantitative discharging of the concrete.

[0012] Further, the driving member comprises:

[0013] A base is fixedly arranged in the control cavity, and an arc-shaped member is rotatably connected to the base;

[0014] A cam is rotatably connected to the base and is arranged adjacent to the arc-shaped member, and the cam is in contact with one end of the arc-shaped member;

[0015] A motor is arranged on the surface of the periodic ration bin, and an output shaft of the motor extends into the control cavity and is in transmission connection with the cam;

[0016] An elastic member is fixedly connected with the valve body at one end and abuts against the other end of the arc-shaped member at the other end, and the arc-shaped member can drive the elastic member to move towards the valve body.

[0017] In the scheme, the motor rotates at a uniform speed, thereby driving the cam to rotate at a uniform speed, and when the cam rotates, it can drive one end of the arc-shaped member to be raised upwards, and the other end of the arc-shaped member will abut against downwards. When the arc-shaped member abuts against downwards, it will push the elastic member to move towards the valve body, thereby pushing the valve body to move towards the discharge port. When one end of the arc-shaped member moves to the opposite position, the elastic member will return to the initial position under the action of the elastic force, thereby completing one cycle. Under the continuous action of the motor, the valve body will reciprocate at a uniform speed in the receiving cavity.

[0018] Further, the elastic member comprises:

[0019] A contact plate, the arc-shaped member is provided with a protrusion, and the protrusion and the contact plate abut against each other;

[0020] A telescopic rod is fixedly connected with the contact plate at one end and is provided with a spring at the other end, and a damping plate is arranged on the telescopic rod adjacent to the spring.

[0021] The telescopic rod is arranged in the sleeve and extends out of the sleeve at both ends, and the damping plate is arranged in the sleeve and can move along the axial direction of the sleeve to compress or stretch the spring.

[0022] When the convex block and the contact plate abut against each other and continuously press the contact plate, the spring is compressed under the continuous pressure of the damping plate, and when the convex block is away from the contact plate, the spring restores under the action of the elastic force, and in this process, since one end of the telescopic rod is fixedly connected with the valve body, the valve body is driven to move in the opposite direction.

[0023] Further, the slow-flow channel is provided with a damping ramp for reducing the flow rate of the concrete.

[0024] Further, the damping ramp is provided with a stepped groove composed of a plurality of teeth.

[0025] Further, the slow-flow channel is provided with a plurality of baffles hinged to the slow-flow channel, the length of the baffles gradually increases in the direction of the concrete discharge, and the baffles and the inner wall of the slow-flow channel are provided with a movable gap. The movable gap provides a flow space for the concrete, and the baffles further delay the flow rate of the concrete, thereby reducing the bearing force on the valve body.

[0026] The utility model provides a kind of quantitative discharging device for concrete processing, with the following beneficial effects:

[0027] The utility model has the advantages that the periodic quantitative bin is used to quantitatively discharge concrete, and uniform speed reciprocating movement is used, so that the valve body is not prone to blockage during movement. Since the movement is realized by the cooperation between mechanical components, the reliability is higher than that of electromagnetic flowmeter. In addition, the slow-flow channel reduces the flow rate of the concrete, so that the valve body can be matched with the concrete, and the possibility of blockage is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a perspective structure schematic view of the quantitative discharging device for concrete processing of the utility model;

[0029] Figure 2 It is a side structure schematic view of the utility model; Figure 1

[0030] Figure 3 It is an internal structure schematic view of the periodic quantitative bin of the utility model;

[0031] Figure 4 ​It is a cross section schematic view of one embodiment of the slow flow channel of the utility model;

[0032] Figure 5 It is a cross section schematic view of another embodiment of the slow flow channel of the utility model;

[0033] Figure 6 It is a structure schematic view inside the elastic member of the utility model.

[0034] In the figure, 1, stirring bin, 11, feed inlet, 2, slow flow channel, 21, damping ramp, 22, baffle, 3, periodic ration bin, 31, discharge port, 32, receiving cavity, 33, control cavity, 4, partition, 5, driving member, 51, base, 52, cam, 53, motor, 54, elastic member, 541, contact plate, 542, telescopic rod, 543, damping plate, 544, spring, 545, sleeve, 55, arc-shaped member, 551, protruding block, 6, valve body. DETAILED DESCRIPTION

[0035] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0036] The embodiments of the present disclosure will be described in detail below with reference to the drawings. The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0037] In the description of the present utility model, it is understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present utility model.

[0038] In the present utility model, unless otherwise explicitly specified and limited, the first feature "on" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. The meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0039] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0040] Embodiment

[0041] In prior art, directly introduce electromagnetic flowmeter to carry out quantitative statistics to concrete unloading, since concrete is the mixture of fluid and solid particle, thus in actual use process, it is easy to cause the blockage of electromagnetic flowmeter, and the reliability in quantitative process is lower.

[0042] Based on this, in order to solve the above-mentioned problems of easy blockage of electromagnetic flowmeter and low reliability, the embodiment provides a kind of quantitative unloading device for concrete processing, including: mixing bin, slow flow channel, periodic quantitative bin.In the embodiment, the top of mixing bin is equipped with feed inlet, mainly used for concrete required material conveying into mixing bin.In mixing bin, it is also installed with stirring mechanism, for stirring concrete.In the bottom of mixing bin, flow outlet is provided, for conveying the stirred concrete into slow flow channel.This part structure is prior art, since the structure is not the technical problem to be solved in the embodiment, thus only do simple introduction.

[0043] Slow flow channel is fixedly installed in the position of the bottom of mixing bin and flow outlet communication, and the slow flow channel and the plane where the bottom of mixing bin is located form an acute angle, and the acute angle constitutes an inclined ramp, and the ramp is used to alleviate the flow rate of concrete in slow flow channel, to avoid that concrete is directly poured into periodic quantitative bin too early, to cause the bearing burden of valve body in periodic quantitative bin.Periodic quantitative bin is communicated with slow flow channel, and the unloading port is provided in periodic quantitative bin, and the valve body is covered on unloading port, and the valve body can reciprocate at uniform speed, and when valve body completely covers unloading port, concrete stops unloading.

[0044] In the embodiment, the periodic quantitative bin is used for quantifying the concrete during the discharging process, and the uniform reciprocating movement is used to prevent the valve body from being blocked during the movement, and since the movement is realized by the cooperation between the mechanical components, the reliability is higher than that of the electromagnetic flowmeter.

[0045] In some embodiments, the periodic quantitative bin is provided with a receiving cavity and a control cavity, and a partition plate is arranged between the receiving cavity and the control cavity, so as to divide the periodic quantitative bin into two chambers. The receiving cavity is communicated with the slow flow channel and is used for receiving the concrete solid-liquid mixture discharged from the slow flow channel. The control cavity is provided with a driving member, one end of the driving member is fixedly connected with the valve body through the partition plate, and the driving member is sealingly connected with the partition plate. The driving member can drive the valve body to move uniformly and reciprocally, so as to realize the quantitative discharging of the concrete.

[0046] Based on the above embodiment, the driving member can include a base, a cam, a motor and an elastic member. The base is fixed in the control cavity by bolts or other fasteners, and an arc-shaped member is rotatably connected to the base by a bearing. A cam is rotatably connected to the base adjacent to the arc-shaped member, wherein the cam is in contact with one end of the arc-shaped member. The motor is arranged on the surface of the periodic quantitative bin through a motor seat, and the output shaft of the motor extends into the control cavity and is in transmission connection with the cam. The output shaft of the motor can rotate relative to the periodic quantitative bin when the motor is powered on. One end of the elastic member is fixedly connected with the valve body, and the other end of the elastic member abuts against the other end of the arc-shaped member. The arc-shaped member can drive the elastic member to move towards the valve body.

[0047] In the present scheme, the motor rotates uniformly to drive the cam to rotate uniformly. When the cam rotates, it can lift one end of the arc-shaped member upward, and the other end of the arc-shaped member will abut downward. When the arc-shaped member abuts downward, it will push the elastic member to move towards the valve body, thereby pushing the valve body to move towards the discharge port. When one end of the arc-shaped member moves to the opposite position, the elastic member will return to the initial position under the action of the elastic force, thereby completing one cycle. Under the continuous action of the motor, the valve body will move uniformly and reciprocally in the receiving cavity.

[0048] It should be noted that in the present scheme, the elastic member includes: a contact plate, an extension rod, a sleeve. Wherein, a protrusion is fixed on the arc-shaped member, and the protrusion and the contact plate abut against each other. One end of the extension rod is fixedly connected with the contact plate, and the other end of the extension rod is provided with a spring, and the position adjacent to the spring on the extension rod is provided with a damping plate. The extension rod is arranged in the sleeve, and both ends extend out of the sleeve, and the damping plate is arranged in the sleeve and can move along the axis direction of the sleeve for compressing or stretching the spring. When the protrusion and the contact plate abut against each other and continuously press the contact plate, the spring will be compressed under the continuous pressure of the damping plate, and when the protrusion is away from the contact plate, the spring will restore to the original state under the action of the elastic force. In this process, since one end of the extension rod is fixedly connected with the valve body, the valve body will move in the opposite direction. Since in the mechanical action, the frequency of the motor and various parameters of the mechanical structure are known, the flow rate and the amount of the concrete passing through the discharge port are certain under the structure.

[0049] In some embodiments, the driving member can also be directly connected with the valve body through a hydraulic push rod, the hydraulic push rod is connected with a hydraulic control console through a pipeline, and the hydraulic control console is arranged in the control bin. The extension or contraction of the hydraulic push rod is controlled by the hydraulic control console to realize the left and right movement of the valve body.

[0050] In some embodiments, the receiving cavity is in a funnel structure, that is, the diameter away from the discharge port is greater than the diameter close to the discharge port. With this structure, the flow of the concrete mixture to the discharge port can be guided.

[0051] Based on the above embodiment, the damping slope is arranged in the slow flow channel to reduce the flow rate of the concrete. Specifically, the damping slope is provided with a stepped groove composed of a plurality of teeth.

[0052] Based on the above embodiment, a plurality of baffles are arranged in the slow flow channel, the baffles are hinged to the slow flow channel, the length of the baffles gradually increases along the direction of the concrete discharge, and the baffles and the inner wall of the slow flow channel are provided with a moving gap. The moving gap provides a flow space for the concrete, and the baffles can further delay the flow rate of the concrete, thereby reducing the bearing capacity of the valve body.

[0053] It should be noted that the motor in the present embodiment can be a variable frequency speed regulation motor, and the speed of the motor is adjusted by adjusting the voltage of the motor, so as to further control the frequency of the movement of the valve body, thereby further more accurately realizing the quantitative discharge of the concrete.

[0054] The above is only to illustrate the implementation manner of the present application, and is not used to limit the present application. For those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application without creative labor shall be included in the protection scope of the present application.

Claims

1. A dosing device for concrete processing, characterized in that The utility model relates to a concrete mixing device, which comprises: a stirring bin provided with a concrete outlet; a slow flow channel in communication with the outlet and arranged obliquely to the bin; a periodic metering bin in communication with the slow flow channel, the periodic metering bin being provided with a discharge opening, the discharge opening being covered with a valve body, and the valve body being capable of moving back and forth at a uniform speed, and when the valve body completely covers the discharge opening, the concrete stops discharging.

2. A dosing device for the processing of concrete according to claim 1, characterized in that The periodic metering bin is provided with a receiving cavity and a control cavity, and a partition is arranged between the receiving cavity and the control cavity. The receiving cavity is in communication with the slow flow channel, and the control cavity is provided with a driving member, one end of the driving member penetrating through the partition and being fixedly connected with the valve body, and the driving member being sealingly connected with the partition.

3. A dosing device for the processing of concrete according to claim 2, characterized in that The driving member comprises: a base fixed in the control cavity, the base being rotatably connected with an arc-shaped member; a cam rotatably connected with the base and arranged adjacent to the arc-shaped member, the cam being in contact with one end of the arc-shaped member; a motor arranged on the surface of the periodic metering bin, the output shaft of the motor extending into the control cavity and being in transmission connection with the cam; a resilient member having one end fixedly connected with the valve body and the other end abutting against the other end of the arc-shaped member, the arc-shaped member being capable of driving the resilient member to move towards the valve body.

4. A dosing device for the processing of concrete according to claim 3, characterized in that The resilient member comprises: a contact plate, the arc-shaped member being provided with a protrusion in abutment with the contact plate; a telescopic rod having one end fixedly connected with the contact plate and the other end penetrating through a spring, the telescopic rod being provided with a damping plate adjacent to the spring; a sleeve, the telescopic rod penetrating through the sleeve and extending out of the sleeve at both ends, the damping plate being arranged in the sleeve and being capable of moving along the axial direction of the sleeve for compressing or stretching the spring.

5. A dosing device for concrete processing according to claim 1, characterized in that, The slow flow channel is provided with a damping slope for reducing the flow rate of the concrete.

6. A dosing device for the processing of concrete according to claim 5, characterized in that The damping slope is provided with a stepped groove composed of a plurality of teeth.

7. A dosing device for concrete processing according to claim 1, characterized in that, The slow flow channel is provided with a plurality of baffles, the baffles being hingedly connected with the slow flow channel, the length of the baffles gradually increasing along the direction of concrete discharging, and the baffles and the inner wall of the slow flow channel being provided with a movable gap.

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