A double helix continuous discharging device

Abstract

The utility model belongs to ceramic production equipment technical field, concretely relates to a double helix continuous unloading device, including base, be equipped with the support plate on the base, the support plate top is equipped with material bin, the clearance is formed between material bin and base, the clearance between material bin and base is equipped with the unloading device who penetrates this clearance, the unloading device includes first helical blade, second helical blade, first helical blade, second helical blade opposite rotation, first helical blade, second helical blade are connected with drive arrangement, drive arrangement drives first helical blade clockwise autorotation, second helical blade counterclockwise autorotation, simultaneously drive arrangement makes first helical blade, second helical blade relative material bin synchronous reciprocating motion, the both sides of base are equipped with the conveyer belt. Through the setting of above-mentioned component, not only can realize preventing the unloading system from blocking, realizes continuous unloading, and still can make the more uniform, stable of unloading amount.

Description

Technical Field

[0001] This utility model belongs to the technical field of ceramic production equipment, specifically relating to a double-helix continuous feeding device. Background Technology

[0002] In the modern industrialized production system of ceramic tiles, clay-based raw materials, with their unique plasticity and binding properties, have become the core basic materials for constructing the structure of ceramic tile bodies. Clay raw materials, represented by kaolin, bentonite, purple clay, and earthenware clay, play a key role in the body forming process through their different mineral compositions and physicochemical properties.

[0003] However, the inherent high viscosity of clay raw materials creates a significant technical bottleneck in automated conveying and feeding processes. In actual production, clay raw materials are prone to agglomeration and clumping, resulting in a discontinuous and unstable feeding process. This feeding anomaly directly interferes with the accuracy of the raw material mixing process. Due to fluctuations in the amount of clay added in each batch, the ratio of clay to other raw materials such as quartz and feldspar in the raw material becomes unbalanced, leading to inconsistent shrinkage rates and disordered coefficients of thermal expansion during the drying and sintering stages. Ultimately, this results in quality defects such as brick surface cracking, warping, and insufficient strength.

[0004] Furthermore, the stickiness of clay can cause blockages in the feeding system. Clay clumps frequently accumulate at hopper outlets, screw conveyors, and pipe connections, forcing frequent production line interruptions for cleaning and maintenance. This not only significantly reduces equipment operating efficiency but also accelerates wear and tear on mechanical parts, substantially increasing equipment maintenance costs. Simultaneously, to address discontinuous feeding, operators must monitor and manually adjust feeding parameters in real time, consuming substantial additional manpower; and to avoid quality risks, the production line is often forced to reduce its operating speed, leading to a decrease in overall capacity. Utility Model Content

[0005] The purpose of this invention is to provide a double-helix continuous feeding device, which aims to solve the technical problems of discontinuous and unstable clay raw material feeding during the feeding process of existing clay raw material feeding equipment and easy blockage of the feeding system.

[0006] To achieve the above objectives, this utility model provides a double-helix continuous feeding device, including a base with a support plate on it; a hollow frame structure material hopper with openings at both ends is provided above the support plate, and a gap is formed between the material hopper and the base; a feeding device is provided through the gap between the material hopper and the base, the feeding device including a first helical blade and a second helical blade arranged horizontally and perpendicular to the material hopper, the first helical blade and the second helical blade rotating in opposite directions, the first helical blade and the second helical blade being connected to a driving device, the driving device driving the first helical blade to rotate clockwise and the second helical blade to rotate counterclockwise, and simultaneously causing the first helical blade and the second helical blade to reciprocate synchronously relative to the material hopper, and conveyor belts are provided on both sides of the base.

[0007] Preferably, the helical surfaces of the first helical blade and the second helical blade are arranged to intersect.

[0008] Preferably, a gear is fitted at one end of the first helical blade and the second helical blade, and the first helical blade and the second helical blade are connected by gear meshing.

[0009] Preferably, the driving device includes a first driving unit and a second driving unit. The first driving unit is connected to the first spiral blade through gear meshing, and the first driving unit and the second driving unit are motors.

[0010] Preferably, the feeding device further includes a fixed frame and a connecting plate. The fixed frame is disposed on one side of the material bin. The first spiral blade and the second spiral blade are rotatably connected to the fixed frame at one end with a gear. The other end of the first spiral blade and the second spiral blade are rotatably connected to the connecting plate.

[0011] Preferably, the feeding device further includes a second bracket on both sides of the base, and the second bracket is provided with a sliding mechanism. The sliding mechanism includes a slide rail, which is an I-shaped guide rail. The slide rail is fixed on the second bracket on both sides of the base and is arranged parallel to the length direction of the material bin.

[0012] Preferably, the sliding mechanism further includes first rollers rotatably sleeved at both ends of the first and second helical blades, the first rollers being disposed above and tangentially to the slide rail, and each of the first rollers being connected to the second drive unit via a transmission assembly.

[0013] Preferably, the sliding mechanism further includes a plurality of second rollers, which are perpendicular to the connecting plate and tangential to the groove in the middle of the slide rail. Each second roller has an extension rod, which is rotatably connected to the second roller. The extension rod is located below the connecting plate and the fixing frame.

[0014] Preferably, the base is provided with baffles on both sides adjacent to the conveyor belt, and the top of the baffles is rotatably connected to the base.

[0015] The above-mentioned technical solutions of one or more technical solutions in the double-helix continuous feeding device provided by this utility model embodiment have at least one of the following technical effects:

[0016] This utility model discloses a double-helix continuous feeding device. With the design of a double-helix blade structure, the left helical blade rotates clockwise and the right helical blade rotates counterclockwise. At the same time, the double helix blades reciprocate relative to the length of the material bin, forming a combined shearing and compressing force on the clay, which can break up clumps more efficiently. The feeding method of the double helix blade can balance the distribution of materials in the material bin, avoiding the problems of material deviation and conveying fluctuation caused by the single helix due to the force on one side. The conveying flow is more stable and it is suitable for the stable material supply requirements of automated production lines.

[0017] The present invention discloses a double-helix continuous feeding device. The design of the double-helix blade structure, positional relationship and rotation mode can enhance the pre-mixing effect of different materials when feeding various clays and additives. This reduces the time of subsequent mixing processes. Especially for raw materials with large density differences, such as the mixing of light additives and heavy clay, the device greatly improves the mixing uniformity of the raw materials.

[0018] The double-helix continuous feeding device of this utility model has a compact design and a simple transmission system, which reduces equipment complexity and procurement costs, while also reducing the failure rate and making operation and maintenance more convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a double-helix continuous feeding device provided in an embodiment of the present utility model.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 This is a partial view of a double-helix continuous feeding device provided in an embodiment of the present utility model.

[0023] Figure 4 This is a partial view of a double-helix continuous feeding device provided in an embodiment of the present utility model.

[0024] The following are the labeling elements in the figure:

[0025] 10—Base, 11—Support plate, 12—Baffle, 20—Material bin, 21—First support bracket

[0026] 30—Feeding device, 31—Fixed frame, 32—First drive unit, 33—Second drive unit

[0027] 34—First helical blade, 35—Second helical blade, 36—Connecting plate, 37—Sliding mechanism

[0028] 371—First roller, 372—Second roller, 373—Slide rail, 38—Second support, 40—Conveyor belt. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figure 1 As shown, a double-helix continuous feeding device is provided, including a base 10, a material bin 20 is provided above the base 10, a gap is provided between the base 10 and the material bin 20, a feeding device 30 is provided through the gap between the base 10 and the material bin 20, and conveyor belts 40 are provided on both sides of the base 10.

[0034] The base 10 is provided with a support plate 11, which is plate-shaped. Baffles 12 are provided on both sides of the base 10 adjacent to the conveyor belt 40. The top of each baffle 12 is rotatably connected to the base 10. A support rod is provided behind each baffle 12. One end of the support rod is rotatably connected to the base 10, and the other end is rotatably connected to the baffle 12. The support rod is a threaded telescopic rod, and the angle between the baffle 12 and the horizontal plane can be adjusted by adjusting the length of the support rod.

[0035] The material hopper 20 is a hollow frame structure with openings at both the top and bottom. Located directly above the support plate 11, and because clay is sticky and prone to clumping, the material hopper 20, in conjunction with the base 10, temporarily stores the clay raw material, ensuring the feeding device 30 has sufficient clay for feeding and preventing feeding gaps. A first bracket 21, fixedly connected to the bottom of the material hopper 20, supports the material hopper 20, creating a gap between the material hopper 20 and the base 10.

[0036] like Figure 2-4 As shown, the feeding device 30 includes a fixed frame 31 and a first spiral blade 34 and a second spiral blade 35 rotatably connected to the fixed frame 31. The fixed frame 31 is located on one side of the material bin.

[0037] The first helical blade 34 and the second helical blade 35 are full-surface helical blades with an axial orientation. The first helical blade 34 rotates counterclockwise and the second helical blade rotates clockwise. The helical surfaces of the first helical blade 34 and the second helical blade 35 are arranged to intersect each other. The spacing between the helical surfaces of the first helical blade 34 and the second helical blade 35 is the same. The first helical blade 34 and the second helical blade 35 are arranged horizontally and perpendicular to the material bin 20.

[0038] One end of the first helical blade 34 and the second helical blade 35 is fitted with a gear and a bearing from top to bottom. The first helical blade 34 and the second helical blade 35 are connected by gear meshing. The bearing is fixed on the fixing frame 31, and the first helical blade 34 and the second helical blade 35 are rotatably connected to the fixing frame 31 through the bearing. The other end of the first helical blade 34 and the second helical blade 35 is also provided with a bearing, and a connecting plate 36 is provided on the bearing. The first helical blade 34 and the second helical blade 35 are rotatably connected to the connecting plate 36.

[0039] The first spiral blade 34 is connected to a first drive unit 32 at one end with a gear. The first drive unit 32 is a servo motor, and a gear is sleeved on the rotating shaft of the servo motor. The first drive unit 32 and the first spiral blade 34 are connected by gear meshing, so that the first drive unit 32 drives the first spiral blade 34 to rotate clockwise. At the same time as the first spiral blade 34 rotates clockwise, it drives the second spiral blade 35 to rotate counterclockwise through the gear engagement.

[0040] The feeding device 30 also includes a second bracket 38 disposed on both sides of the base 10. The second bracket 38 is provided with a sliding mechanism 37. The sliding mechanism 37 includes a slide rail 373. The slide rail 373 is an I-shaped guide rail. There are two slide rails 373, which are respectively fixed on the second brackets 38 on both sides of the base 10. The slide rails 373 are arranged parallel to the material bin 20.

[0041] The sliding mechanism 37 further includes first rollers 371 rotatably mounted on both ends of the first spiral blade 34 and the second spiral blade 35. The first rollers 371 are connected to the first spiral blade 34 and the second spiral blade 35 via bearings, so that the first rollers 371 can rotate on the first spiral blade 34 and the second spiral blade 35. The first rollers 371 are located above the slide rail 373 and are tangential to the slide rail 373. The first rollers 371 at the end of the second spiral blade 35 with a gear are connected to a second drive unit 33 via a transmission chain. The second drive unit 33 is a servo motor, and a gear is mounted on the rotating shaft of the servo motor. The second drive unit 33 drives the first rollers 371 to reciprocate along the slide rail 373, thereby driving the second spiral blade 35 to reciprocate relative to the material bin 20, while simultaneously driving the fixed frame 31 to make the first spiral blade 34 and the second spiral blade 35 reciprocate synchronously relative to the material bin 20.

[0042] The sliding mechanism 37 also includes a plurality of second rollers 372. The second rollers 372 can be directly selected as circular bearings. The second rollers 372 are arranged perpendicularly to the connecting plate and are tangent to the groove in the middle of the slide rail 373. An extension rod is provided on the second rollers 372. The second rollers 372 and the extension rod are rotatably connected. The extension rod is located below the connecting plate 36 and the fixing frame 31.

[0043] The working principle of this utility model is as follows: When using a double spiral continuous feeding device, clay raw materials are poured into the material hopper 20. After the clay raw materials fall onto the base 10, they accumulate in the material hopper 20, so that there is enough clay in the material hopper 20 to supply the feeding device 30 for feeding work, avoiding the occurrence of feeding gaps. The first drive unit 32 drives the first spiral blade 34 to rotate clockwise. The first spiral blade 34 drives the second spiral blade 35 to rotate counterclockwise through gear meshing, forming a combined shearing and compressing force on the clay, which can break up clumps more efficiently. At the same time, the second drive unit 33 drives the first roller 371 at the gear end of the second spiral blade 35 to rotate. The first roller 371 reciprocates along the slide rail 373, thereby driving the second spiral blade 35 to reciprocate relative to the material bin 20. At the same time, it drives the fixing frame 31 to make the first spiral blade 34 and the second spiral blade 35 reciprocate synchronously relative to the material bin 20, preventing the clay raw material from accumulating and clumping, and preventing it from falling onto the first spiral blade 34 and the second spiral blade 35, causing interruption in material feeding. The double spiral blade feeding method can balance the distribution of materials in the material bin, avoiding the material deviation and conveying fluctuation problems caused by the single spiral due to unilateral force. The conveying flow is more stable and adapts to the stable material supply requirements of automated production lines.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-helix continuous feeding device, characterized in that: The system includes a base (10), on which a support plate (11) is provided; a hollow frame structure material hopper (20) with openings at both ends is provided above the support plate (11), and a gap is formed between the material hopper (20) and the base (10); a feeding device (30) is provided through the gap between the material hopper (20) and the base (10), and the feeding device (30) includes a first spiral blade (34) and a second spiral blade (35) arranged horizontally and perpendicular to the material hopper (20), the first spiral blade (34) and the second spiral blade (35) rotating in opposite directions, the first spiral blade (34) and the second spiral blade (35) being connected to a driving device, the driving device driving the first spiral blade (34) to rotate clockwise and the second spiral blade (35) to rotate counterclockwise, and the driving device causing the first spiral blade (34) and the second spiral blade (35) to reciprocate synchronously relative to the material hopper (20), and conveyor belts (40) are provided on both sides of the base (10).

2. The double-helix continuous feeding device according to claim 1, characterized in that: The spiral surfaces of the first spiral blade (34) and the second spiral blade (35) are arranged to intersect.

3. The double-helix continuous feeding device according to claim 1, characterized in that: Gears are respectively fitted at one end of the first helical blade (34) and the second helical blade (35), and the first helical blade (34) and the second helical blade (35) are connected by gear meshing.

4. The double-helix continuous feeding device according to claim 1, characterized in that: The diameter of the gear is matched with the diameter of the first helical blade (34) and the second helical blade (35).

5. The double-helix continuous feeding device according to claim 1, characterized in that: The driving device includes a first driving unit (32) and a second driving unit (33). The first driving unit (32) is connected to the first spiral blade (34) through gear meshing. The first driving unit (32) and the second driving unit (33) are motors.

6. The double-helix continuous feeding device according to claim 1, characterized in that: The feeding device (30) also includes a fixed frame (31) and a connecting plate (36). The fixed frame (31) is located on one side of the material bin (20). The first spiral blade (34) and the second spiral blade (35) are rotatably connected to the fixed frame (31) at one end with a gear. The other end of the first spiral blade (34) and the second spiral blade (35) is rotatably connected to the connecting plate (36).

7. The double-helix continuous feeding device according to claim 1, characterized in that: The feeding device (30) also includes a second bracket (38) on both sides of the base (10). The second bracket (38) is provided with a sliding mechanism (37). The sliding mechanism (37) includes a slide rail (373). The slide rail (373) is an I-shaped guide rail. The slide rail (373) is fixed on the second bracket (38) on both sides of the base (10) and is arranged parallel to the length direction of the material bin (20).

8. A double-helix continuous feeding device according to claim 1 or 7, characterized in that: The sliding mechanism (37) further includes first rollers (371) that are rotatably sleeved at both ends of the first helical blade (34) and the second helical blade (35). The first rollers (371) are located above the slide rail (373) and are tangential to the slide rail (373). One of the first rollers (371) is connected to the second drive unit (33) through a transmission assembly.

9. A double-helix continuous feeding device according to claim 6 or 7, characterized in that: The sliding mechanism (37) further includes a plurality of second rollers (372). The second rollers (372) are perpendicular to the connecting plate (36) and are tangential to the groove in the middle of the slide rail (373). An extension rod is provided on the second roller (372). The second roller (372) and the extension rod are rotatably connected. The extension rod is located below the connecting plate (36) and the fixing frame (31).

10. A double-helix continuous feeding device according to claim 1, characterized in that: The base (10) is provided with baffles (12) on both sides adjacent to the conveyor belt (40), and the top of the baffles (12) is rotatably connected to the base (10).

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