Quantitative discharging bin for concrete raw materials

Abstract

According to the concrete raw material quantitative discharging bin, the material distribution bin, the material storage bin and the spiral conveying mechanism are arranged, different raw materials are separated through the material distribution bin, when the raw materials fall into the material storage bin from the material distribution bin, the raw materials are conveyed into a stirring machine through the spiral conveying mechanism, in addition, the material distribution bin and the horizontal rod are borne through the bearing spring for quantification, and the concrete raw material quantitative discharging bin is simple in structure and convenient to use. Measuring the compression distance of the load-bearing spring by the material distribution bin so as to judge the weight multiple difference of different raw materials in the material distribution bin; by adopting the technical scheme, the accuracy of raw material proportioning is effectively improved, the probability of blockage when the raw materials are conveyed to the stirrer is effectively reduced, and the concrete stirring efficiency and the stirring effect are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of concrete mixing equipment, in particular to a quantitative feeding bin for concrete raw materials. Background Art

[0002] Concrete unloading is a device used to store and unload the mixed concrete in a concrete mixing plant. It is usually used at the front end of concrete mixing to distribute materials.

[0003] At present, concrete raw materials are not pre-processed before entering the mixer. Cement, sand and gravel in the required proportion are simply poured together, and then the raw materials are sent to the mixer for mixing through conveyor belts or forklifts. Since the raw materials need to wait for a period of time in the mixer to fully mix the cement, sand and water, the feeding cannot be too fast or continuous, which can easily cause too much raw materials in the mixer and uneven mixing. Therefore, it is necessary to feed the materials into the mixer in a quantitative manner.

[0004] The Chinese invention patent with application number CN202211292015.0 discloses: a connecting sleeve, one end of which is sleeved on one end of a concrete mixer, and the connecting sleeve is connected to the inside of the concrete mixer; a sleeve, one end of which is sleeved on the outer surface of one end of a first conveying pipe, and the first conveying pipe is connected to the connecting sleeve; a fixed sleeve, which is sleeved on the outer surface of a second conveying pipe, and one end of the second conveying pipe is plugged into the other end of the sleeve; the beneficial effect is: the amount of raw materials added to the concrete mixer is realized by adjusting the distance between the feed port and the baffle, and then the input of raw materials is realized by controlling the flipping of the baffle. This technical solution can realize the quantitative feeding of concrete raw materials to a certain extent. Although this solution can realize quantitative feeding, it needs to be fed after mixing in advance, which affects the feeding efficiency on the one hand, and on the other hand, the weight deviation of the pre-mixed materials will occur during the transportation and feeding process, thereby affecting the strength requirements of concrete. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies in the above-mentioned technology and to propose a concrete raw material quantitative feeding bin, which aims to solve the problems of raw material accumulation and failure to pre-treat the raw materials during the above-mentioned feeding process, resulting in reduced mixing effect and efficiency.

[0006] The utility model provides a quantitative feeding bin for concrete raw materials, including a base, a storage hopper and a sub-bin for containing different raw materials, the storage hopper is opened at the top of the base, the sub-bin is slidably connected to the top of the hopper mouth, a conveying mechanism for conveying raw materials is vertically arranged at the bottom of the storage hopper, the sub-bin slides outside the conveying mechanism, an elastic load-bearing mechanism for supporting the sub-bin is fixedly connected to the top of the base, a quantitative mechanism for locating the height of the sub-bin is fixedly connected to the top of the base to observe the weight ratio of different raw materials in the sub-bin, the quantitative mechanism and the elastic load-bearing mechanism are both movably connected to the sub-bin, and the quantitative mechanism and the elastic load-bearing mechanism are both located between the base and the sub-bin. By setting the sub-bin to place different raw materials, the weight in the sub-bin is different, which is fed back to the telescopic degree of the elastic load-bearing mechanism, so as to judge the ratio of the raw materials in the sub-bin, and by setting the quantitative mechanism, the feedback of the elastic load-bearing mechanism on the telescopic degree is clear.

[0007] Preferably, the conveying mechanism includes a spiral blade, a conveying pipe and a discharge pipe, one end of the conveying pipe is placed at the center of the bottom of the storage hopper and is spaced from the bottom of the storage hopper, the other end of the conveying pipe is fixedly connected to the discharge pipe, the spiral blade rotates in the conveying pipe, and one end of the spiral blade close to the bottom of the storage hopper is rotatably connected or abutted with the storage hopper. The raw materials at the bottom of the storage hopper are conveyed to the mixer by arranging the spiral blade to rotate in the conveying pipe.

[0008] Preferably, a movable bottom plate is provided at the bottom of the material distribution bin, and the bottom plate slides in the slit at the bottom of the material distribution bin. A pull-out plate is fixedly connected to the bottom plate on the side away from the slit of the material distribution bin. The raw materials can be dropped into the storage bin by providing a movable bottom plate.

[0009] Preferably, the elastic load-bearing mechanism includes a load-bearing spring, a telescopic rod and an end cover, one end of the telescopic rod is fixedly connected to the top of the base, the other end of the telescopic rod is fixedly connected to the end cover, the end cover abuts against the bottom plate, one end of the load-bearing spring is fixedly connected to the top of the base, the other end of the load-bearing spring is fixedly connected to the end cover, and the telescopic rod is sleeved in the load-bearing spring.

[0010] Preferably, the quantitative mechanism includes a fixed tube, a sliding rod, a slot, an elastic protrusion and a horizontal rod. The fixed tube is fixedly connected to the top of the base, the sliding rod is sleeved in the fixed tube, the slots are evenly spaced on the tube wall of the fixed tube, the elastic protrusion is fixedly connected to the sliding rod, and the elastic protrusion is embedded in the slot, and the horizontal rod is hinged to one end of the sliding rod away from the fixed tube. A limit block for limiting the range of motion of the bottom plate is fixedly connected to the horizontal rod. A telescopic support rod is hinged on one side of the horizontal rod close to the material distribution bin, and the other end of the telescopic support rod is fixedly connected to the base. The horizontal rod is fixed and telescopic by the fixed tube to locate the position of the horizontal rod, and when the material distribution bin touches the horizontal rod, the material distribution bin is located and quantitatively measured.

[0011] Compared with the prior art, it has the following beneficial effects:

[0012] The utility model provides a quantitative feeding bin for concrete raw materials. By arranging a feeding bin, a storage bin and a screw conveying mechanism, different raw materials are separated by the feeding bin. When the raw materials fall into the storage bin from the feeding bin, they are conveyed to the mixer by the screw conveying mechanism. In addition, a load-bearing spring is arranged to bear the feeding bin, and a horizontal rod is used for quantitative measurement to measure the distance that the feeding bin compresses the load-bearing spring, so as to determine the difference in weight multiples of different raw materials in the feeding bin. The above technical scheme is adopted to effectively improve the accuracy of raw material proportioning, effectively reduce the probability of blockage of raw materials when conveying to the mixer, and effectively improve the concrete mixing efficiency and mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0014] Figure 1 This is a schematic diagram of a quantitative feeding bin for concrete raw materials of the utility model;

[0015] Figure 2 This is a longitudinal cross-sectional view of a quantitative feeding bin for concrete raw materials of the utility model;

[0016] Figure 3 It is a schematic diagram of the material distribution bin of the utility model;

[0017] Figure 4 It is a schematic diagram of the quantitative mechanism and elastic load-bearing mechanism of the utility model;

[0018] Figure 5 It is a schematic diagram of the elastic load-bearing mechanism of the utility model;

[0019] Figure 6 It is a schematic diagram of the quantitative mechanism of the utility model.

[0020] In the figure, base 1; storage hopper 2; distribution bin 3; bottom plate 31; pull-out plate 32; conveying mechanism 4; spiral blade 41; conveying pipe 42; discharge pipe 43; elastic load-bearing mechanism 5; load-bearing spring 51; telescopic rod 52; end cover 53; quantitative mechanism 6; fixed tube 61; sliding rod 62; slot 63; elastic protrusion 64; horizontal rod 65; limit block 651; telescopic support rod 66. DETAILED DESCRIPTION

[0021] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:

[0022] Example:

[0023] like Figures 1 to 3 As shown, the utility model provides a quantitative feeding bin for concrete raw materials, including a base 1, a storage hopper 2 and a sub-bin 3 for containing different raw materials. The storage hopper 2 is opened at the top of the base 1. The storage hopper 2 is in the shape of a funnel, which is convenient for receiving the concrete raw materials that fall in and concentrating them at the bottom. The sub-bin 3 is slidably connected to the top of the hopper mouth of the storage hopper 2. The sub-bin 3 is composed of a plurality of separate sub-bins 3 arranged around the center of a circle, and each sub-bin 3 is not connected to each other. One type of raw material is placed in each sub-bin 3. A conveying mechanism 4 for conveying raw materials is vertically arranged at the bottom of the storage hopper 2.

[0024] The bottom of the material distribution bin 3 is provided with a movable bottom plate 31, and the bottom plate 31 slides in the slit at the bottom of the material distribution bin 3. If the material distribution bin 3 is regarded as a fan, the arc edge of the bottom plate 31 extends outside the material distribution bin 3. The bottom plate 31 slides in the slit, that is, the material distribution bin 3 can be opened and closed, and then the raw materials in the material distribution bin 3 can be dropped into the storage hopper 2. The bottom plate 31 is fixedly connected with a pull-out plate 32 on the side away from the slit of the material distribution bin 3. The pull-out plate 32 is set to pull the bottom plate 31 out of the slit for dropping materials, and the pull-out plate 32 is fixed on the arc edge of the bottom plate 31.

[0025] The conveying mechanism 4 includes a spiral blade 41, a conveying pipe 42 and a discharge pipe 43. One end of the conveying pipe 42 is placed at the center of the bottom of the storage hopper 2 and is spaced from the bottom of the storage hopper 2. The other end of the conveying pipe 42 is fixedly connected to the discharge pipe 43. The spiral blade 41 rotates in the conveying pipe 42, and the end of the spiral blade 41 close to the bottom of the storage hopper 2 is rotatably connected or abutted with the storage hopper 2. The conveying pipe 42 is at a certain distance from the bottom of the storage hopper 2, which is convenient for the raw materials to leak to the bottom of the storage hopper 2. The bottom of the storage hopper 2 is closed, and the raw materials continuously fall to the bottom of the discharge hopper, and then the spiral blade 41 rotates to vertically convey the raw materials along the conveying pipe 42 to the discharge pipe 43 and then discharge them into the mixer. The center of the spiral blade 41 is fixedly connected to the output end of the motor, and the motor can be installed in the base 1.

[0026] As another example, Figure 4 and Figure 5As shown, the material distribution bin 3 of the present application slides outside the conveying mechanism 4, and an elastic load-bearing mechanism 5 for supporting the material distribution bin 3 is fixedly connected to the top of the base 1. The elastic load-bearing mechanism 5 includes a load-bearing spring 51, a telescopic rod 52 and an end cover 53, one end of the telescopic rod 52 is fixedly connected to the top of the base 1, the other end of the telescopic rod 52 is fixedly connected to the end cover 53, the end cover 53 abuts against the bottom plate 31, one end of the load-bearing spring 51 is fixedly connected to the top of the base 1, the other end of the load-bearing spring 51 is fixedly connected to the end cover 53, and the telescopic rod 52 is sleeved in the load-bearing spring 51.

[0027] There are multiple telescopic rods 52 and load-bearing springs 51, and at least two symmetrical telescopic rods 52 and load-bearing springs 51 are set under each sub-bin 3 to improve stability. Due to the relatively fixed raw material ratio required for different strengths of concrete, the common ratio of cement, sand and gravel is 1:2:3. There are also other ratios according to different concrete strength requirements, and the weight is used as the proportional unit. Therefore, the compression amplitude of the load-bearing spring 51 can intuitively reflect whether the weight in the sub-bin 3 is heavy or light.

[0028] As another example, Figure 4 and Figure 6 As shown, the top of the base 1 of the present application is fixedly connected with a quantitative mechanism 6 for locating the height of the sub-bin 3 to observe the weight ratio of different raw materials in the sub-bin 3. The quantitative mechanism 6 and the elastic load-bearing mechanism 5 are both movably connected to the sub-bin 3, and the quantitative mechanism 6 and the elastic load-bearing mechanism 5 are both located between the base 1 and the sub-bin 3. The quantitative mechanism 6 includes a fixed tube 61, a sliding rod 62, a slot 63, an elastic protrusion 64 and a horizontal rod 65. The fixed tube 61 is fixedly connected to the top of the base 1, the sliding rod 62 is sleeved in the fixed tube 61, the slots 63 are evenly spaced on the tube wall of the fixed tube 61, the elastic protrusion 64 is fixedly connected to the sliding rod 62, and the elastic protrusion 64 is embedded in the slot 63. The horizontal rod 65 is hinged at one end of the sliding rod 62 away from the fixed tube 61, and a torsion spring is arranged at the hinge to help the horizontal rod 65 to reset after being pressed.

[0029] The horizontal rod 65 is horizontal relative to the ground or the base 1. Before the material distribution bin 3 is discharged, the elastic protrusion 64 is pressed, and the sliding rod 62 is pulled to correspond the elastic protrusion 64 to different slots 63. The closer the slot 63 is to the ground, the heavier the weight is when the material distribution bin 3 falls and contacts the horizontal rod 65. The distance between the slots 63 can be set in advance. The weight difference between adjacent slots 63 or one slot 63 is doubled. The actual length of the heavy-duty load-bearing spring 51 and the telescopic rod 52, as well as the length of the fixed tube 61 will increase accordingly. The general length is a multiple of the height of the material distribution bin 3. The elastic protrusion 64 can be a slot on the sliding rod 62, and the spring is fixed in the slot, and one end of the spring is fixedly connected to the protrusion.

[0030] As another example, Figure 6 As shown, a limit block 651 for limiting the range of motion of the bottom plate 31 is fixedly connected to the horizontal rod 65 of the present application. The limit block 651 mainly limits the position of the bottom plate 31 when the bottom plate 31 is pulled out, so as to prevent the bottom plate 31 from sliding out of the open slit of the material distribution bin 3. A telescopic support rod 66 is fixedly connected to the side of the horizontal rod 65 close to the material distribution bin 3, and the other end of the telescopic support rod 66 is hinged to the base 1. The telescopic support rod 66 is mainly used to support the horizontal rod 65 to prevent the horizontal rod 65 from affecting the effect of its horizontal measurement after the sliding rod 62 is deflected in the fixed tube 61, and can also prevent the sliding rod 62 from rotating or deflecting in the fixed tube 61.

[0031] The working principle of a quantitative feeding silo for concrete raw materials in the present application is as follows: when in use, press the elastic protrusion 64 and pull the sliding rod 62 to make it slide in the fixed tube 61, and then snap the elastic protrusion 64 into the slot 63 of the corresponding weight ratio. After the elastic protrusion 64 under each sub-bin 3 is embedded into the appropriate position, different raw materials, such as cement, sand, etc., are put into each sub-bin 3. When the sub-bin 3 falls to the corresponding horizontal rod 65 position, it means that the weight of the raw materials in the sub-bin 3 reaches the proportion weight, and the bottom plate 31 of the sub-bin 3 is pulled to drop the raw materials into the storage hopper 2. Turning on the motor spiral blade 41 to rotate will drive the raw materials to be transported upward along the conveying pipe 42, and discharged from the discharge pipe 43 to the mixer for mixing.

[0032] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A quantitative feeding silo for concrete raw materials, characterized in that , comprising a base (1), a storage hopper (2) and a distribution bin (3) for containing different raw materials, the storage hopper (2) being opened at the top of the base (1), the distribution bin (3) being slidably connected to the top of the hopper mouth of the storage hopper (2), a conveying mechanism (4) for conveying raw materials being vertically arranged at the bottom of the storage hopper (2), and the distribution bin (3) sliding outside the conveying mechanism (4); an elastic load-bearing mechanism (5) for supporting the distribution bin (3) being fixedly connected to the top of the base (1); a quantitative mechanism (6) for locating the height of the distribution bin (3) so as to observe the weight ratio of different raw materials in the distribution bin (3) being fixedly connected to the top of the base (1), the quantitative mechanism (6) and the elastic load-bearing mechanism (5) being both movably connected to the distribution bin (3), and the quantitative mechanism (6) and the elastic load-bearing mechanism (5) being both located between the base (1) and the distribution bin (3).

2. A concrete raw material quantitative feeding silo according to claim 1, characterized in that: The conveying mechanism (4) comprises a spiral blade (41), a conveying pipe (42) and a discharge pipe (43); one end of the conveying pipe (42) is placed at the center of the bottom of the storage hopper (2) and is spaced apart from the bottom of the storage hopper (2); the other end of the conveying pipe (42) is fixedly connected to the discharge pipe (43); the spiral blade (41) rotates inside the conveying pipe (42), and one end of the spiral blade (41) close to the bottom of the storage hopper (2) is rotationally connected to or abuts against the storage hopper (2).

3. A concrete raw material quantitative feeding silo according to claim 2, characterized in that: The bottom of the material distribution bin (3) is provided with a movably connected bottom plate (31), and the bottom plate (31) slides in the slit at the bottom of the material distribution bin (3).

4. A concrete raw material quantitative feeding silo according to claim 3, characterized in that: The elastic load-bearing mechanism (5) comprises a load-bearing spring (51), a telescopic rod (52) and an end cover (53); one end of the telescopic rod (52) is fixedly connected to the top of the base (1); the other end of the telescopic rod (52) is fixedly connected to the end cover (53); the end cover (53) abuts against the bottom plate (31); one end of the load-bearing spring (51) is fixedly connected to the top of the base (1); the other end of the load-bearing spring (51) is fixedly connected to the end cover (53); and the telescopic rod (52) is sleeved in the load-bearing spring (51).

5. A concrete raw material quantitative feeding silo according to claim 4, characterized in that: The quantitative mechanism (6) comprises a fixed tube (61), a sliding rod (62), a slot (63), an elastic protrusion (64) and a horizontal rod (65); the fixed tube (61) is fixedly connected to the top of the base (1); the sliding rod (62) is sleeved in the fixed tube (61); the slots (63) are arranged at equal intervals on the tube wall of the fixed tube (61); the elastic protrusion (64) is fixedly connected to the sliding rod (62), and the elastic protrusion (64) is embedded in the slot (63); and the horizontal rod (65) is hinged to one end of the sliding rod (62) away from the fixed tube (61).

6. A concrete raw material quantitative feeding silo according to claim 5, characterized in that: A limit block (651) for limiting the range of movement of the bottom plate (31) is fixedly connected to the horizontal rod (65).

7. A concrete raw material quantitative feeding silo according to claim 6, characterized in that: A telescopic support rod (66) is hingedly connected to one side of the horizontal rod (65) close to the material distribution bin (3), and the other end of the telescopic support rod (66) is fixedly connected to the base (1).

8. A concrete raw material quantitative feeding silo according to claim 4, characterized in that: The bottom plate (31) is fixedly connected with a pull-out plate (32) on a side away from the slit of the material distribution bin (3).

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