High-precision constant feeder

Abstract

The utility model discloses a high-precision constant feeder, relates to the technical field of quantitative conveying, and aims to solve the problems that the feeding time of the conventional feeding equipment is longer, and the workload of a weighing sensor is increased. Comprising a machine base and a machine frame, the machine base is connected with the machine frame, the machine frame is connected with a traction plate in a sliding mode, and the traction plate is driven by a hydraulic cylinder; a turning plate is hinged to the traction plate, a weighing disc is further arranged on the turning plate, and a weighing sensor used for weighing materials on the weighing disc is further arranged between the weighing disc and the turning plate. A weighing sensor and a weighing tray are arranged on the turning plate, so that materials on the weighing tray can be weighed, and a large number of materials can be added to the materials at a time; the machine frame is further provided with a guiding block used for guiding the turning plate to incline and a material guiding hopper used for guiding materials to fall on the material weighing disc.

Description

Technical Field

[0001] The utility model relates to the technical field of quantitative feeding, and particularly relates to a high-precision quantitative feeder. Background Art

[0002] The quantitative feeder is an ideal device for continuously weighing and feeding bulk materials. It is a high-tech product integrating transportation, weighing and metering, and quantitative control, and is famous for its advanced technology, stable reliability, high cost performance, and durability.

[0003] When processing mineral materials, it is necessary to quantitatively add mineral materials to ensure the processing quality. Most of the existing quantitative feeding equipment adopts rotary quantitative feeding or belt conveyor quantitative feeding. Although the above two methods can achieve quantitative feeding, there are still the following deficiencies. The rotary and belt conveyor quantitative feeding equipment has a small amount of feeding at one time and requires multiple feedings. In the case of multiple feedings, the working burden of the weighing sensor is increased, and at the same time, the feeding time is increased.

[0004] Therefore, this application provides a high-precision quantitative feeder to meet the requirements. Summary of the Utility Model

[0005] The purpose of this application is to provide a high-precision quantitative feeder, aiming to solve the problems of long feeding time of the existing feeding equipment and increased working burden of the weighing sensor.

[0006] To achieve the above purpose, this application provides the following technical solution: A high-precision quantitative feeder, including a machine base and a frame. The frame is connected to the machine base. A traction plate is slidably connected to the frame, and the traction plate is driven by a hydraulic cylinder. A flap is hinged to the traction plate, and a weighing tray is further provided on the flap. A weighing sensor for weighing the weight of the material on the weighing tray is further provided between the weighing tray and the flap. By setting the weighing sensor and the weighing tray on the flap, the material on the weighing tray can be weighed, and a large amount of material can be added to the material at one time. A guiding block for guiding the flap to tilt and a material guiding hopper for guiding the material to fall on the weighing tray are further provided on the frame.

[0007] Preferably, the frame is a "day"-shaped frame, including a left through hole and a right through hole. A through slot for the traction plate to pass through is further provided between the left through hole and the right through hole. A traction slot communicated with the left through hole is further opened on the frame. A traction block connected to the traction plate is slidably connected in the traction slot. A hydraulic cylinder is further provided on the frame, and the telescopic end of the hydraulic cylinder is connected to the traction block.

[0008] Preferably, a sliding column is further provided on the facing surfaces of the weighing tray and the flap, and a sliding sleeve adapted to the sliding column is provided on the flap. Through the limiting of the sliding sleeve and the sliding column, the weighing tray and the flap will not be separated during unloading, thereby realizing high-precision automatic quantitative feeding operation.

[0009] Preferably, the edge of the weighing tray is provided with a flange to prevent the material from rolling down, and a contracted discharge port is opened on the left side of the weighing tray.

[0010] Preferably, the guide block includes a mounting portion and a guide portion, the mounting portion is connected to the frame by bolts, the guide portion is wedge-shaped and is slidably connected to the flap, and the frame is also provided with a support rod for supporting the guide portion. By arranging a traction plate on the frame, arranging a flap and a weighing tray on the traction plate, and cooperating with the guide block on the frame, the traction plate cooperates with the guide block under the drive of the hydraulic cylinder to realize the unloading operation of materials on the symmetrical tray.

[0011] Preferably, the left side of the flap is hinged to the traction plate, the right side of the flap is overlapped with the frame, and the bottom of the flap is provided with an inclined surface which is slidably connected to the frame and the guide block.

[0012] Preferably, the frame is connected to the material guide hopper via a mounting frame, and the material guide hopper and the weighing sensor both correspond to the center of the weighing tray. By cooperating with the material guide hopper on the frame, the added material can be added directly to the center of the weighing tray, thereby avoiding the problem of unbalanced loading and reducing the service life of the weighing sensor.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] In the utility model, by arranging a weighing sensor and a weighing tray on the flap, the material on the tray can be weighed symmetrically, so that a large amount of material can be added at one time; in conjunction with the feed hopper on the frame, the added material can be added directly to the center of the tray, avoiding the problem of unbalanced loading and reducing the service life of the weighing sensor.

[0015] In the utility model, a traction plate is arranged on the frame, and a flap and a weighing tray are arranged on the traction plate, and the guide blocks on the frame are cooperated. Under the drive of the hydraulic cylinder, the traction plate and the guide blocks cooperate to realize the unloading operation of the materials on the symmetrical material tray; through the limiting of the sliding sleeve and the sliding column, the weighing tray and the flap will not be separated during unloading, thereby realizing high-precision automatic quantitative feeding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial exploded view of the utility model;

[0019] Figure 3 This is a schematic diagram of the unloading state of the utility model;

[0020] Figure 4 It is a sectional view of the unloading state of the utility model.

[0021] In the figure: 1. machine base; 2. frame; 3. hydraulic cylinder; 4. mounting frame; 5. hopper; 6. traction block; 7. flap; 8. weighing tray; 9. guide block; 10. support rod; 11. weighing sensor; 12. sliding sleeve; 13. sliding column; 14. traction plate; 15. traction groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] refer to Figure 1-4 A high-precision quantitative feeder shown in the figure comprises a base 1 and a frame 2, the base 1 is connected to the frame 2, a traction plate 14 is slidably connected to the frame 2, and the traction plate 14 is driven by a hydraulic cylinder 3;

[0024] like Figure 1 and Figure 3As shown in the figure, the frame 2 is in the shape of a Chinese character 'Ri' (日), including a left through-hole and a right through-hole. There is also a through slot for the traction plate 14 to pass through between the left through-hole and the right through-hole. During weighing, the traction plate 14 is located in the left through-hole. A traction slot 15 communicating with the left through-hole is also formed on the frame 2. A traction block 6 connected to the traction plate 14 is slidably connected in the traction slot 15. A hydraulic cylinder 3 is also provided on the frame 2. The telescopic end of the hydraulic cylinder 3 is connected to the traction block 6. During unloading, under the traction of the hydraulic cylinder 3, the traction plate 14 slides through the through slot into the right through-hole.

[0025] As Figure 2 shown in the figure, a flap 7 is hinged on the traction plate 14. A weighing tray 8 is also provided on the flap 7. A weighing sensor 11 for weighing the weight of the material on the weighing tray 8 is also provided between the weighing tray 8 and the flap 7. The weighing sensor 11 is used to weigh the weight of the material. Sliding columns 13 are also provided on the facing surfaces of the weighing tray 8 and the flap 7. A sliding sleeve 12 adapted to the sliding columns 13 is provided on the flap 7. The cooperation of the sliding columns 13 and the sliding sleeves 12 is to prevent the weighing tray 8 and the flap 7 from being misaligned and separated when unloading the material on the weighing tray 8, resulting in the flap 7 being unable to drive the weighing tray 8 to automatically reset. A flanging for preventing the material from rolling off is provided at the edge of the weighing tray 8, and a shrinkable unloading port is provided on the left side of the weighing tray 8.

[0026] The left side of the flap 7 is hinged to the traction plate 14, and the right side of the flap 7 is lapped on the frame 2. An inclined surface for slidingly connecting with the frame 2 and the guiding block 9 is provided at the bottom of the flap 7. The guiding block 9 includes a mounting portion and a guiding portion. The mounting portion is connected to the frame 2 by bolts. The guiding portion is wedge-shaped and is slidably connected to the flap 7. A support rod 10 for supporting the guiding portion is also provided on the frame 2. Under the guidance of the guiding block 9, the flap 7 can be tilted to facilitate the unloading of the weighing tray 8.

[0027] A guiding block 9 for guiding the flap 7 to tilt and a material guiding hopper 5 for guiding the material to fall on the weighing tray 8 are also provided on the frame 2. The frame 2 is connected with the material guiding hopper 5 through a mounting bracket 4. The material guiding hopper 5 and the weighing sensor 11 are both corresponding to the center of the weighing tray 8. Under the guidance of the material guiding hopper 5, the added material will fall at the center of the weighing tray 8 and above the weighing sensor 11, avoiding the problem of uneven loading on the weighing tray 8.

[0028] The working principle of this utility model: When in use, the device is powered on and connected to an external PLC control unit. According to the amount of material to be added, the weighing value of the weighing sensor 11 is set. That is, when the weighing sensor 11 detects that the amount of the weighed material reaches the preset value, it gives a prompt to the PLC control unit.

[0029] The material is added through the feed hopper 5 on the frame 2. Under the action of the feed hopper 5, the material falls on the center of the weighing tray 8 to avoid the problem of eccentric loading. When the material is added to the preset value, a prompt is sent to the PLC control unit to stop adding the material and prepare for the unloading operation; the hydraulic cylinder 3 is controlled to work and contract, driving the traction block 6 to slide in the traction groove 15, and at the same time driving the traction plate 14 to move from left to right on the frame 2, driving the flap 7 to move, and the inclined surface on the flap 7 is connected to the frame 2, and under the drive of the hydraulic cylinder 3 and the limit of the frame 2, the flap 7 is rotated around the hinge with the traction plate 14. Under the drive of the hydraulic cylinder 3, the inclination angle between the flap 7 and the horizontal plane gradually increases, thereby driving the weighing tray 8 to tilt, and the material on the weighing tray 8 is discharged from the left notch. Due to the movement of the traction plate 14, the left through hole on the frame 2 is opened, and the material is discharged from the left through hole and falls at the specified position or in the specified subsequent processing equipment, completing a quantitative feeding.

[0030] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0031] Components not described in detail herein are prior art.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision quantitative feeder, characterized in that: It includes a machine base (1) and a machine frame (2). The machine frame (2) is connected to the machine base (1). A traction plate (14) is slidably connected to the machine frame (2), and the traction plate (14) is driven by a hydraulic cylinder (3). A tipping plate (7) is hinged to the traction plate (14). A weighing tray (8) is further provided on the tipping plate (7). A weighing sensor (11) for weighing the weight of the material on the weighing tray (8) is further provided between the weighing tray (8) and the tipping plate (7). A guiding block (9) for guiding the tipping plate (7) to tilt and a material guiding hopper (5) for guiding the material to fall on the weighing tray (8) are further provided on the machine frame (2).

2. A high-precision quantitative feeder according to claim 1, characterized in that: The machine frame (2) is a "day"-shaped frame, including a left through-hole and a right through-hole. A through groove for the traction plate (14) to pass through is further provided between the left through-hole and the right through-hole. A traction groove (15) communicating with the left through-hole is further opened on the machine frame (2). A traction block (6) connected to the traction plate (14) is slidably connected in the traction groove (15). A hydraulic cylinder (3) is further provided on the machine frame (2), and the telescopic end of the hydraulic cylinder (3) is connected to the traction block (6).

3. A high-precision quantitative feeder according to claim 1, characterized in that: Sliding columns (13) are further provided on the facing surfaces of the weighing tray (8) and the tipping plate (7), and sliding sleeves (12) adapted to the sliding columns (13) are provided on the tipping plate (7).

4. A high-precision quantitative feeder according to claim 1 or 3, characterized in that: Flanges for preventing the material from rolling off are provided at the edges of the weighing tray (8), and a shrink-shaped discharge port is opened on the left side of the weighing tray (8).

5. A high-precision quantitative feeder according to claim 1, characterized in that: The guiding block (9) includes a mounting portion and a guiding portion. The mounting portion is connected to the machine frame (2) by bolts. The guiding portion is wedge-shaped and is slidably connected to the tipping plate (7). A supporting rod (10) for supporting the guiding portion is further provided on the machine frame (2).

6. A high-precision quantitative feeder according to claim 1 or 5, characterized in that: The left side of the tipping plate (7) is hinged to the traction plate (14), the right side of the tipping plate (7) is lapped on the machine frame (2), and an inclined surface for sliding connection with the machine frame (2) and the guiding block (9) is opened at the bottom of the tipping plate (7).

7. A high-precision quantitative feeder according to claim 1, characterized in that: The machine frame (2) is connected with the material guiding hopper (5) through a mounting bracket (4), and both the material guiding hopper (5) and the weighing sensor (11) correspond to the center of the weighing tray (8).

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