Concrete additive feeding device

Abstract

The utility model relates to a concrete additive feeding device which comprises a stirring box and a feeding box, a feeding channel is arranged above the stirring box, the feeding box is installed on the feeding channel, a rotating disc attached to the inner wall of the feeding channel is rotatably connected in the feeding channel, the upper surface of the rotating disc is attached to the bottom wall of the feeding box, and the feeding box is installed on the rotating disc. A material passing part is arranged on the rotating disc and comprises a plurality of through holes which are distributed in the circumferential direction of the rotating disc at intervals and are different in diameter, a through hole is formed in the bottom of the feeding box, the diameter of the through hole is larger than that of the largest through hole, and the driving mechanism drives the rotating disc to rotate till the through hole in the rotating disc is aligned with or completely staggered with the through hole. According to the concrete additive feeding device, the amount of the additive added at a time can be adjusted according to different mixing technologies, so that the additive reacts with concrete more sufficiently, and the quality of the concrete is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete processing, in particular to a concrete additive feeding device. Background Art

[0002] Concrete additives, also known as admixtures, are substances used to improve the properties of concrete. During the concrete mixing process, concrete additives are infiltrated. The additives quickly blend with the concrete during mixing, improving the setting time and hardening properties of the concrete. This can improve the quality of concrete and make it more convenient for workers to use concrete with suitable properties.

[0003] When adding additives to concrete, a feeding device is required to control the amount of accelerating agent added. However, the traditional feeding device cannot adjust the amount of additives added at a single time according to different mixing processes, resulting in uneven mixing of concrete and additives, insufficient reaction, and unsatisfactory effect of the finished concrete product. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a concrete additive feeding device for the above-mentioned defects, which can adjust the amount of additives added at a single time according to different mixing processes, so that the reaction between the additives and concrete is more sufficient, thereby ensuring the quality of the concrete.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a concrete additive feeding device, comprising a mixing box and a feeding box, a feeding channel is arranged above the mixing box, the feeding box is installed on the feeding channel, a turntable in rotationally connected with the inner wall of the feeding channel is fitted with the upper surface of the turntable and the bottom wall of the feeding box is fitted, a feeding portion is arranged on the turntable, the feeding portion comprises a plurality of through holes with different diameters arranged at intervals along the circumference of the turntable, a through hole is opened at the bottom of the feeding box, the diameter of the through hole is larger than the diameter of the largest through hole, and the through hole on the turntable driven by the driving mechanism is aligned with or completely misaligned with the through hole when the turntable is rotated.

[0006] Compared with the prior art, the beneficial effect of the present solution is that a turntable fitted therewith is provided in the feed channel, and the turntable is driven to rotate by a driving mechanism, and the through hole on the turntable is rotated to align with the through hole at the bottom of the loading box. At this time, the additive in the loading box passes through the through hole and the through hole and enters the mixing box. Since a plurality of through holes with different diameters are arranged at intervals circumferentially on the turntable, and the diameter of the through hole is larger than the diameter of the largest through hole, the through holes of different diameters on the turntable can be rotated to align with the through holes according to the amount of additives that need to be added to the mixing box each time, so as to feed. When it is not necessary to add additives to the mixing box, the turntable is driven by the driving mechanism to rotate until the through hole on it is completely misaligned with the through hole, and intermittent feeding is achieved according to the specific processing technology, so that the reaction between the additive and the concrete is more sufficient, thereby ensuring the quality of the concrete.

[0007] As a preferred embodiment of the utility model, a rotating shaft is fixedly connected under the turntable, the driving mechanism includes a motor assembly, and two pulleys fixedly connected to the motor output shaft and the rotating shaft in the motor assembly, respectively, the two pulleys are connected by belts, and a bearing seat for fixing the lower end of the rotating shaft is provided at the lower end of the feed channel, and a gap is left between the bearing seat and the feed channel for the additive to pass through.

[0008] The beneficial effects of this solution are as follows: the motor drives the pulley and the belt to rotate, thereby driving the rotating shaft to rotate, and the rotation of the rotating shaft drives the turntable to rotate, so that the through hole on the turntable is aligned with or completely misaligned with the through hole at the bottom of the feeding box, and the lower end of the rotating shaft is fixed on the bearing seat arranged at the lower end of the feed channel to avoid the lower end of the rotating shaft being suspended in the air, and a gap is left between the bearing seat and the feed channel, and the additive can pass through the gap into the mixing box without affecting the addition of the additive.

[0009] As a preferred embodiment of the utility model, a plurality of blades which are respectively offset from the positions of the through holes are provided on the outer circumferential surface of the rotating shaft along its radial direction, and the blades are located above the pulley.

[0010] The beneficial effect of this solution is that when the additive passes through the through hole and enters the mixing box, the additive will collide with the blades, and the blades can break up the additive and make it enter the mixing box in a dispersed state, so that it can be mixed with the concrete in the mixing box more evenly and effectively.

[0011] As a preferred embodiment of the utility model, a protective cover is provided on the rotating shaft, a pulley fixedly connected to the rotating shaft is located in the protective cover, the radius of the protective cover is smaller than the length of the blade and the upper end surface of the protective cover is inclined downward.

[0012] Beneficial effects of this program:

[0013] (1) When the additive enters the mixing box along the feed channel, the protective cover arranged outside the pulley can prevent the additive from entering between the pulley and the belt, thereby avoiding affecting the rotation of the turntable;

[0014] (2) The radius of the protective cover is smaller than the length of the blade and the upper end surface of the protective cover is tilted downward to prevent the additive from falling and staying on the upper end surface of the protective cover instead of entering the mixing box, causing a waste of the additive.

[0015] As a preferred embodiment of the present invention, the material transfer parts are provided with two groups, the second group of material transfer parts are radially symmetrically arranged with respect to the first group of material transfer parts, and two through holes are radially symmetrically arranged at the bottom of the loading box.

[0016] The beneficial effects of this solution are as follows: the feed parts and the through holes are symmetrically arranged in two groups. When the driving mechanism drives the turntable to rotate until a through hole on the first group of feed parts is aligned with a through hole arranged at the bottom of the loading box, the through holes with the same diameter as the through holes on the second group of feed parts are also aligned with another through hole arranged at the bottom of the loading box. The additives in the loading box can enter the mixing box from two through holes with the same diameter at the same time, so that the additives can be added to the mixing box in a more dispersed manner, avoiding uneven mixing.

[0017] As a preferred embodiment of the utility model, two support plates are rotatably connected to the bottom wall inside the loading box, the rotating ends of the two support plates are respectively located at one end of the two through holes away from each other, and a first compression spring is provided between the two support plates and the bottom wall inside the loading box.

[0018] The beneficial effects of this solution are as follows: when the loading box is filled with additives, the additives are located above the support plate, and the first compression spring is in a compressed state. Most of the additives in the loading box can enter the mixing box through the through hole, but a small amount of additives will remain at the bottom of the loading box on both sides of the through hole. When a small amount of additives still remains in the loading box, the force exerted by the additives on the first compression spring becomes smaller, and the first compression spring is no longer compressed. At this time, the first compression spring can drive the support plate to rotate in a direction close to the vertical plane and form an inclined surface, so that the additives on the support plate can slide downward along the inclined surface and enter the mixing box through the through hole. Through the design of the support plate and the first compression spring, the small amount of additives remaining in the loading box can also be added to the mixing box, thereby avoiding waste.

[0019] As a preferred embodiment of the utility model, the support plate includes an outer sleeve plate and an inner sleeve plate slidably matched with the outer sleeve plate, one end of the first compression spring is fixed on the outer sleeve plate, a second compression spring is provided between the inner sleeve plate and the outer sleeve plate, and the inner sleeve plate is inclined away from the side of the outer sleeve plate and abuts against the inner wall of the loading box.

[0020] The beneficial effect of this solution is as follows: when the first compression spring drives the support plate to rotate in the direction close to the vertical plane, the side of the inner sleeve plate away from the outer sleeve plate is always in contact with the inner wall of the loading box under the drive of the second compression spring, so that there is no gap between the inner sleeve plate and the inner wall of the loading box, ensuring that the additives will not fall under the support plate when adding additives into the upper material box, preventing them from being unable to slide to the through hole and enter the mixing box as the support plate rotates, thereby avoiding waste of additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of an embodiment of the concrete additive feeding device of the utility model.

[0022] Figure 2 It is a partial cross-sectional view of the concrete additive feeding device of the utility model.

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0024] Figure 4 for Figure 1 Schematic diagram of the structure inside the feed channel.

[0025] Figure 5 for Figure 3 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to explain the present invention and will not limit the protection scope of the present invention.

[0027] The terms "first", "second" and the like in the specification, claims and embodiments of the present application are used to distinguish similar objects rather than to describe a specific order or sequential sequence.

[0028] The present invention is further described in detail below through preferred specific embodiments:

[0029] The figure marks in the drawings of the specification include: mixing box 1, mixing blade 101, feed port 102, discharge port 103, feed channel 2, loading box 3, through hole 301, turntable 4, through hole 5, support plate 6, outer plate 601, inner plate 602, first compression spring 603, rotating shaft 7, bearing seat 8, driving mechanism 9, motor assembly 901, belt 902, pulley 903, mounting seat 10, placement seat 11, blade 12, protective cover 13.

[0030] As attached Figure 1 and attached Figure 2As shown: the concrete additive feeding device of this embodiment includes a mixing box 1, which is placed horizontally on two mounting seats 10, and a placement seat 11 is provided on one side of the mounting seat 10. A feed port 102 and a feed channel 2 are provided above the mixing box 1, and a discharge port 103 is provided below the mixing box 1. Valves are provided on the feed port 102 and the discharge port 103, which are not shown in the figure. A mixing blade 101 is provided inside the mixing box 1, and the mixing blade 101 is driven by a motor.

[0031] As attached Figure 2 and attached Figure 3 As shown: a loading box 3 is installed on the feed channel 2, and two through holes 301 are radially symmetrically arranged at the bottom of the loading box 3. Two support plates 6 are rotatably connected to the bottom wall inside the loading box 3, and the rotating ends of the two support plates 6 are respectively located at the ends away from each other of the two through holes 301. A first compression spring 603 is provided between the two support plates 6 and the bottom wall inside the loading box 3. The support plate 6 includes an outer sleeve plate 601 and an inner sleeve plate 602 slidably matched with the outer sleeve plate 601. One end of the first compression spring 603 is fixed on the outer sleeve plate 601, and a second compression spring is provided between the inner sleeve plate 602 and the outer sleeve plate 601. The second compression spring is not shown in the figure. The inner sleeve plate 602 is inclined away from the side of the outer sleeve plate 601 and abuts against the inner wall of the loading box 3.

[0032] As attached Figure 3 and attached Figure 4 As shown: a turntable 4 in contact with the inner wall of the feed channel 2 is rotatably connected therein, the upper surface of the turntable 4 is in contact with the bottom wall of the loading box 3, and two groups of feed passing parts are provided on the turntable 4, each group of feed passing parts includes a plurality of through holes 5 of different diameters arranged at intervals along the circumference of the turntable 4. In this embodiment, preferably, each group of feed passing parts is provided with three through holes 5, the diameter of the through hole 301 is larger than the diameter of the largest through hole 5 therein, and the second group of feed passing parts is symmetrically arranged with the first group of feed passing parts along the radial direction of the turntable 4, wherein the distance between the two through holes 5 on the same diameter line is the same as the distance between the two through holes 301.

[0033] As attached Figure 4 and attached Figure 5As shown: a rotating shaft 7 is fixedly connected to the lower part of the rotating disk 4, a protective cover 13 is provided on the rotating shaft 7, and the upper end surface of the protective cover 13 is tilted downward. A plurality of blades 12 are provided on the outer circumferential surface of the rotating shaft 7, which are respectively misaligned with the through holes 5. The protective cover 13 is located below the blades 12, and the radius of the protective cover 13 is smaller than the length of the blades 12. Six blades are provided in this embodiment, and three are shown in the figure. A bearing seat 8 for fixing the lower end of the rotating shaft 7 is provided at the lower end of the inner part of the feeding channel 2, and a space for the additive to pass through is reserved between the bearing seat 8 and the feeding channel 2. The rotation of the rotating shaft 7 is driven by the driving mechanism 9, thereby driving the turntable 4 to rotate until the through hole 5 thereon is aligned with or completely misaligned with the through hole 301. The driving mechanism 9 includes a motor assembly 901 arranged on the placement seat 11, and two pulleys 903 fixedly connected to the motor output shaft in the motor assembly 901 and the rotating shaft 7. The pulley 903 fixedly connected to the rotating shaft 7 is located in the protective cover 13. The two pulleys 903 are connected by a belt 902. The feed channel 2 has two holes for the pulley 903 to pass through, which are not marked in the figure.

[0034] Specific feeding process:

[0035] In the initial state, the through hole 5 arranged on the turntable 4 is completely misaligned with the through hole 301 arranged at the bottom of the loading box 3. The loading box 3 is filled with additives, the first compression spring 603 is compressed, and the support plate 6 as a whole is close to the bottom wall inside the loading box 3.

[0036] When it is necessary to add additives to the mixing box 1, the driving mechanism 9 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the turntable 4 to rotate. The rotation angle of the turntable 4 is controlled according to the amount of additives to be added this time, so that a through hole 5 with a suitable diameter is rotated to be aligned with the through hole 301. Since the feeding part is provided with two groups and two through holes 301 are symmetrically provided, the turntable 4 is rotated once, and the two through holes 5 with the same diameter arranged on the turntable 4 are respectively aligned with the two through holes 301 arranged at the bottom of the feeding box 3. The additive enters the mixing box 1 from the two through holes 5 with the same diameter at the same time. When the additive enters the mixing box 1, it collides with the blade 12 located below the through hole 5 and corresponding to the position of the through hole 5. The blade 12 can break up the additive and make it enter the mixing box 1 in a dispersed state.

[0037] When there is no need to add additives to the mixing box 1, the driving mechanism 9 controls the turntable 4 to rotate until the through hole 5 thereon is completely misaligned with the through hole 301, so that the additive will not continue to enter the mixing box 1. When different doses of additives need to be added to the mixing box 1 according to the processing progress, the driving mechanism 9 drives the turntable 4 to rotate so that the through hole 5 of another diameter on the turntable 4 is aligned with the through hole 301.

[0038] With continuous stirring, the additive in the loading box 3 gradually decreases, and most of the additive in the loading box 3 can enter the mixing box 1 from the aligned through-holes 301 and the through-holes 5, but a small amount of additive will remain at the bottom of the loading box 3 on both sides of the through-holes 301. When a small amount of additive still remains in the loading box 3, the force exerted by the additive on the first compression spring 603 becomes smaller, and the first compression spring 603 is no longer compressed. At this time, the first compression spring 603 can drive the support plate 6 to rotate in a direction close to the vertical plane and form an inclined surface, so that the remaining additive can move downward along the inclined surface of the support plate 6. Slide and enter into the mixing box 1 through the through hole 301. Since the end of the inner plate 602 that contacts the inner wall of the loading box 3 is inclined, and a second compression spring is arranged between the inner plate 602 and the outer plate 601, when the first compression spring 603 drives the outer plate 601 to rotate in the direction close to the vertical plane, one end of the inner plate 602 can always abut against the inner wall of the loading box 3, so that there is no gap between the inner plate 602 and the inner wall of the loading box 3, so as to avoid the additives falling under the support plate 6 when loading the additives into the upper box 3, and thus unable to enter the mixing box 1.

[0039] The preferred implementation mode of the present application is described in detail above in conjunction with the accompanying drawings. The typical known structures and common knowledge technologies in the preferred implementation mode are not described in detail here. Ordinary technicians in the relevant field can improve and implement the technical solution of the utility model based on their own abilities under the inspiration given by the present implementation mode. Some typical known structures, known methods or common knowledge technologies should not become obstacles for ordinary technicians in the relevant field to implement the present application.

[0040] The scope of protection required by this application shall be based on the contents of its claims, and the contents of the utility model, specific implementation methods and the contents recorded in the drawings of the specification shall be used to interpret the claims.

[0041] Within the technical concept of the present application, several modifications may be made to the specific implementation methods of the present application, and these modified specific implementation methods should also be regarded as within the protection scope of the present application.

Claims

1. A concrete additive feeding device, comprising a mixing box and a feeding box, wherein a feeding channel is provided above the mixing box, and the feeding box is installed on the feeding channel, characterized in that: A turntable is rotatably connected in the feed channel and is in contact with the inner wall thereof. The upper surface of the turntable is in contact with the bottom wall of the loading box. A feeding portion is provided on the turntable. The feeding portion includes a plurality of through holes of different diameters arranged at intervals along the circumference of the turntable. A through hole is provided at the bottom of the loading box. The diameter of the through hole is larger than the diameter of the largest through hole. The turntable is driven by a driving mechanism to rotate until the through holes on it are aligned with or completely misaligned with the through holes.

2. The concrete additive feeding device according to claim 1, characterized in that: A rotating shaft is fixedly connected below the turntable, and the driving mechanism includes a motor assembly, and two pulleys fixedly connected to the motor output shaft and the rotating shaft in the motor assembly respectively, the two pulleys are connected by belts, and a bearing seat for fixing the lower end of the rotating shaft is provided at the lower end of the feed channel, and a gap is left between the bearing seat and the feed channel for the additive to pass through.

3. The concrete additive feeding device according to claim 2, characterized in that: A plurality of blades are disposed on the outer circumferential surface of the rotating shaft along its radial direction and are respectively offset from the positions of the through holes, and the blades are located above the pulley.

4. The concrete additive feeding device according to claim 2, characterized in that: A protective cover is sleeved on the rotating shaft, and a pulley fixedly connected to the rotating shaft is located in the protective cover. The radius of the protective cover is smaller than the length of the blade, and the upper end surface of the protective cover is tilted downward.

5. The concrete additive feeding device according to claim 1, characterized in that: The material transfer parts are provided with two groups, the second group of material transfer parts are radially symmetrically arranged with respect to the first group of material transfer parts, and two through holes are radially symmetrically arranged at the bottom of the material loading box.

6. The concrete additive feeding device according to claim 1, characterized in that: Two supporting plates are rotatably connected to the bottom wall inside the loading box, and the rotating ends of the two supporting plates are respectively located at one end of the two through holes away from each other, and a first compression spring is provided between the two supporting plates and the bottom wall inside the loading box.

7. The concrete additive feeding device according to claim 6, characterized in that: The support plate includes an outer sleeve plate and an inner sleeve plate slidably matched with the outer sleeve plate. One end of the first compression spring is fixed on the outer sleeve plate. A second compression spring is provided between the inner sleeve plate and the outer sleeve plate. The inner sleeve plate is inclined away from the side of the outer sleeve plate and abuts against the inner wall of the loading box.

Images