High-efficiency powder conveying device for large-diameter blanking

Abstract

The utility model relates to the technical field of conveying auger, specifically relates to a high -efficient powder conveying device of large -diameter blanking, the utility model discloses: the chute, at least occupies the length of two -thirds length of whole auger, and the inclined side plate of caliber both sides inclines outward and presents trapezoidal setting of cross section, top cover, erects in the auger above chute, presents the bending structure of top sharp angle, is used for dispersing the pressure when powder falling, avoids bending auger, the gap is arranged between top cover and the side plate of chute, and powder is divided into two from the middle, slides down to the gap along the inclined plane of top cover, and disperses from the gap and falls into the auger below top cover, the auger is set with unequal width of pitch, and the pitch is narrower near the drive motor one end, and the pitch is wider near the discharge port one end, the utility model discloses through optimizing the size shape of chute, top cover structure and gap setting, auger pitch, realizes the efficient uniform conveying and rapid discharge of powder, to promote the conveying efficiency more, guarantees the stability of device.

Description

Technical Field

[0001] This utility model relates to the field of conveying auger technology, specifically to a high-efficiency powder conveying device with a large-diameter discharge. Background Technology

[0002] In powder processing, augers are common conveying components. The flour mill feeding device described in Chinese Patent Publication No. CN214131908U has significant shortcomings in its discharge trough. Ordinary discharge troughs are small in size, limiting the amount of powder they can hold, making it difficult to meet the needs of large-scale production. Structurally, the straight or simply inclined design makes the downward force of the powder unstable; small angles lead to accumulation, while large angles cause splashing, affecting the smoothness of the conveying process. Furthermore, simply increasing the diameter of the discharge trough introduces new problems, such as powder potentially jamming the auger or causing it to bend, affecting the normal operation of the device. Therefore, developing a large-diameter powder conveying device to effectively solve the above problems and ensure the stability and efficiency of powder conveying is of significant practical importance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-efficiency powder conveying device with large-diameter discharge.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A high-efficiency powder conveying device with a large-diameter discharge port, comprising:

[0006] The lower drop trough occupies at least two-thirds of the entire auger length, and the inclined side plates on both sides of the opening are set outward with a trapezoidal cross section.

[0007] The top cover, mounted above the auger in the trough, has a bent structure with a pointed top to disperse the pressure of the falling powder and prevent it from bending the auger. There is a gap between the top cover and the side plate of the trough. The powder is split in two in the middle, slides down the slope of the top cover to the gap, and then disperses and falls into the auger below the top cover.

[0008] Support shafts are spaced apart on both sides of the top cover, and the top cover is fixed to the inclined side plate of the drop trough by the support shafts;

[0009] The auger is installed in the trough, with a drive mechanism on one side and a discharge port on the other side. The auger has an unequal pitch, with a narrower pitch at the end near the drive motor and a wider pitch at the end near the discharge port.

[0010] This technical solution optimizes the size and shape of the chute, the structure and gap design of the top cover, and the pitch of the auger to achieve efficient and uniform conveying and rapid discharge of powder, thereby improving conveying efficiency and ensuring the stability of the device. Specifically, the chute occupies most of the length of the auger and has a trapezoidal cross-section, which increases the powder carrying capacity and falling space, allowing the powder to fall more smoothly; the sharp-cornered bending structure of the top cover disperses the pressure when heavy powder falls, preventing the auger from being bent and ensuring conveying stability; the mechanism of the gap between the top cover and the side plate diverts the powder, allowing it to fall evenly into different positions of the auger and avoiding local accumulation; the support shaft fixes the top cover to ensure structural stability; the auger pitch is not uniform, with a narrower pitch near the drive end to gradually accelerate powder conveying, and a wider pitch near the discharge port to facilitate rapid powder discharge and improve conveying efficiency.

[0011] In addition, the large-diameter powder conveying device proposed above according to this utility model may also have the following additional technical features:

[0012] According to one embodiment of the present invention, the inclination angle of the inclined side plate of the chute is in the range of 10° to 45°.

[0013] In this technical solution, the tilt angle of 10° to 45° is a reasonably set range. If the angle is too small, the powder will lack sufficient downward momentum and tend to accumulate in the trough, affecting the smoothness of the conveying process. If the angle is too large, although it can accelerate the downward speed of the powder, it will result in excessive impact force, damaging components such as the auger below, and also causing powder to splash. Therefore, a reasonable tilt angle utilizes gravity to provide the powder with appropriate downward momentum, keeping the powder stable during the downward movement and avoiding accumulation or splashing problems caused by improper angle.

[0014] According to one embodiment of the present invention, the angle range of the top sharp corner of the top cover is 30° to 90°.

[0015] In this technical solution, a suitable sharp angle enhances the structural stability of the top cover, making it less prone to damage and deformation when subjected to long-term powder impact, thus extending the service life of the top cover. When powder falls from above and impacts the top cover, a smaller sharp angle allows the impact force to be more concentrated and dispersed along the sharp angle direction, reducing the strong pressure on the top cover in a localized area and preventing the top cover from deforming and being damaged due to excessive local stress; while a larger sharp angle, although less effective in dispersing the impact force, enhances the structural stability of the top cover itself, making it less prone to shaking or displacement when subjected to long-term powder impact.

[0016] According to one embodiment of the present invention, the number of support shafts is at least three, which are evenly spaced on both sides of the top cover.

[0017] This technical solution utilizes multiple support points to construct a stable mechanical support system, which evenly distributes the powder pressure and its own weight borne by the top cover onto each support shaft.

[0018] According to one embodiment of the present invention, the driving mechanism includes:

[0019] The drive motor, located on one side of the feeding trough, is used to provide power;

[0020] Gear I, mounted on the drive motor;

[0021] Gear II, installed on the auger;

[0022] The chain connects gear I and gear II respectively, and is used for power transmission.

[0023] This technical solution involves placing the drive motor on one side of the feeding trough, and connecting the gear I mounted on it and the gear II mounted on the auger via a chain. The drive motor rotates to drive gear I, which in turn drives gear II via the chain, ultimately achieving the rotation of the auger.

[0024] According to one embodiment of the present invention, the weight of the powder received in the trough is not less than 500 kg.

[0025] In this technical solution, the large diameter of the drop trough is sufficient to allow for the drop of no less than 500 kg of powder, which far exceeds the diameter of the discharge port of ordinary AC.

[0026] Compared with the prior art, this utility model has the following advantages:

[0027] (1) The trapezoidal cross section of the trough occupies most of the length of the auger, increasing the amount of powder to be received and the falling space. The 10°~45° inclined side plate makes the powder slide down with appropriate power, avoiding accumulation or splashing, so that the powder falls smoothly. The large diameter can also receive no less than 500kg of powder to meet the needs of large-scale production.

[0028] (2) The top corner of the top cover is 30°~90° to enhance structural stability, disperse the impact force of powder, and prevent local deformation and overall shaking and displacement; the gap between the top cover and the side plate diverts the powder so that it falls evenly into the auger; at least three support shafts are evenly spaced to ensure the stability of the top cover. Attached Figure Description

[0029] Figure 1 This is a perspective view of the present invention.

[0030] Figure 2 This is a side view of the present invention.

[0031] Figure 3 This is a cross-sectional view of the present invention.

[0032] Figure 4 This is a top view with the top cover removed.

[0033] In the diagram: 1. Lower chute; 2. Top cover; 3. Support shaft; 4. Drive motor; 5. Gear I; 6. Gear II; 7. Chain; 8. Discharge port; 9. Screwdriver. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] like Figures 1 to 4 As shown, this embodiment provides a high-efficiency powder conveying device with large-diameter discharge, including:

[0037] The lower drop trough 1 occupies at least two-thirds of the length of the entire auger 9, and the inclined side plates on both sides of the opening are inclined outward and set in a trapezoidal cross section.

[0038] The top cover 2 is mounted above the auger 9 of the trough 1 and has a bent structure with a pointed top. It is used to disperse the pressure of the falling powder and prevent the auger 9 from bending. There is a gap between the top cover 2 and the side plate of the trough 1. The powder is split in two from the middle and slides down the slope of the top cover 2 to the gap, and then disperses and falls into the auger 9 below the top cover 2.

[0039] Support shafts 3 are spaced apart on both sides of the top cover 2, and the top cover 2 is fixed to the inclined side plate of the lower trough 1 by the support shafts 3;

[0040] The auger 9 is installed in the lower trough 1. A drive mechanism is provided on one side of the auger 9 and a discharge port 8 is provided on the other side. The auger 9 has an unequal pitch, with a narrower pitch at the end near the drive motor 4 and a wider pitch at the end near the discharge port 8.

[0041] like Figures 1 to 4As shown, this technical solution optimizes the size and shape of the chute 1, the structure and gap setting of the top cover 2, and the pitch of the auger 9 to achieve efficient and uniform conveying and rapid discharge of powder, thereby improving conveying efficiency and ensuring device stability. Specifically, the chute 1 occupies most of the length of the auger 9 and has a trapezoidal cross-section, which increases the powder carrying capacity and falling space, allowing the powder to fall more smoothly; the sharp-cornered bending structure of the top cover 2 disperses the pressure of the falling powder, preventing the auger 9 from being bent and ensuring conveying stability; the mechanism of the gap between the top cover 2 and the side plate diverts the powder, allowing the powder to fall evenly into different positions of the auger 9, avoiding local accumulation; the support shaft 3 fixes the top cover 2 to ensure structural stability; the pitch of the auger 9 is not uniform, with a narrow pitch near the drive end to gradually accelerate the powder conveying, and a wide pitch near the discharge port 8 to facilitate rapid powder discharge and improve conveying efficiency.

[0042] In addition, the large-diameter powder conveying device proposed above according to this utility model may also have the following additional technical features:

[0043] According to one embodiment of the present invention, the inclination angle of the inclined side plate of the drop trough 1 is in the range of 10°~45°.

[0044] In this technical solution, the tilt angle of 10° to 45° is a reasonably set range. If the angle is too small, the powder will lack sufficient downward momentum and tend to accumulate in the drop trough 1, affecting the smoothness of the conveying process. If the angle is too large, although it can accelerate the downward speed of the powder, it will result in excessive impact force on the powder, damaging components such as the auger 9 below, and also causing powder to splash. Therefore, a reasonable tilt angle utilizes gravity to provide the powder with appropriate downward momentum, keeping the powder stable during the downward movement and avoiding accumulation or splashing problems caused by improper angle.

[0045] According to one embodiment of the present invention, the angle range of the top sharp corner of the top cover 2 is 30°~90°.

[0046] In this technical solution, a suitable sharp angle enhances the structural stability of the top cover 2, making it less prone to damage and deformation when subjected to long-term powder impact, thus extending the service life of the top cover 2. When powder falls from above and impacts the top cover 2, a smaller sharp angle allows the impact force to be more concentrated and dispersed along the sharp angle direction, reducing the strong local pressure on the top cover 2 and preventing the top cover 2 from deforming and being damaged due to excessive local force; while a larger sharp angle, although the effect of dispersing the impact force is relatively weaker, can enhance the structural stability of the top cover 2 itself, making it less prone to shaking or displacement when subjected to long-term powder impact.

[0047] According to one embodiment of the present invention, the number of support shafts 3 is at least three, which are evenly spaced on both sides of the top cover 2.

[0048] This technical solution utilizes multiple support points to construct a stable mechanical support system, which evenly distributes the powder pressure and its own weight borne by the top cover 2 onto each support shaft 3.

[0049] According to one embodiment of the present invention, the driving mechanism includes:

[0050] The drive motor 4 is located on one side of the feeding chute and is used to provide power;

[0051] Gear I5 is mounted on drive motor 4;

[0052] Gear II6, installed on auger 9;

[0053] Chain 7 connects gear I5 and gear II6 respectively, and is used for power transmission.

[0054] This technical solution involves placing the drive motor 4 on one side of the feeding trough, and connecting the gear I5 mounted on it and the gear II6 mounted on the auger 9 via a chain 7. The drive motor 4 drives the gear I5, which in turn drives the gear II6 via the chain 7, ultimately achieving the rotation of the auger 9.

[0055] According to one embodiment of the present invention, the weight of the powder material received in the trough 1 is not less than 1 ton.

[0056] In this technical solution, the large diameter of the drop trough 1 is sufficient to allow at least 1 ton of powder to fall, which is far greater than the diameter of the discharge port of ordinary AC.

[0057] The usage process of the above embodiments is as follows:

[0058] like Figures 1 to 4 As shown, during operation, a large amount of powder falls into the large-diameter drop trough 1, whose trapezoidal cross-section occupies most of the length of the auger 9, providing ample capacity and falling space for the powder. The 10°~45° inclined side plates allow the powder to slide down steadily by gravity, avoiding accumulation or splashing. When the powder falls to the top cover 2, the 30°~90° sharp corners of the top cover 2 disperse the pressure of the falling powder, preventing the auger 9 from bending and dispersing the impact force of the powder, ensuring its own stability. The powder is divided in two from the middle of the top cover 2 and slides down the inclined surface to the gap between the top cover 2 and the side plate, falling evenly into different positions of the auger 9, avoiding local accumulation. The drive motor 4 rotates, driving the gear I 5 installed on it, and transmitting the power to the gear II 6 installed on the auger 9 through the chain 7, causing the auger 9 to rotate. The pitch of the auger 9 is narrow near the drive end, gradually accelerating the powder conveying, and the pitch is wide near the discharge port 8, facilitating the rapid discharge of the powder, achieving efficient and uniform conveying and rapid discharge.

[0059] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency powder conveying device for large-diameter blanking, characterized in that, include: The lower drop trough (1) occupies at least two-thirds of the length of the entire auger (9), and the inclined side plates on both sides of the opening are inclined outward and set in a trapezoidal cross section. The top cover (2) is mounted above the auger (9) of the trough (1) and has a bent structure with a pointed top. It is used to disperse the pressure of the falling powder and prevent the auger (9) from bending. There is a gap between the top cover (2) and the side plate of the trough (1). The powder is divided into two parts in the middle and slides down the slope of the top cover (2) to the gap and disperses into the auger (9) below the top cover (2). Support shafts (3) are spaced apart on both sides of the top cover (2), and the top cover (2) is fixed to the inclined side plate of the drop trough (1) by the support shafts (3); The auger (9) is set in the trough (1), with a drive mechanism on one side and a discharge port (8) on the other side. The auger (9) is set with unequal pitch, with the pitch being narrower at the end near the drive motor (4) and wider at the end near the discharge port (8).

2. The high-efficiency powder conveying device with large-diameter discharge as described in claim 1, characterized in that, The tilt angle of the inclined side plate of the trough (1) is in the range of 10°~45°.

3. The high-efficiency powder conveying device with large-diameter discharge as described in claim 1, characterized in that, The angle range of the top sharp corner of the top cover (2) is 30°~90°.

4. The high-efficiency powder conveying device with large-diameter discharge as described in claim 1, characterized in that, The number of support shafts (3) is at least three, which are evenly spaced on both sides of the top cover (2).

5. The high-efficiency powder conveying device with large-diameter discharge as described in claim 1, characterized in that, The drive mechanism includes: The drive motor (4) is located on one side of the feeding trough and is used to provide power; Gear I (5) is mounted on the drive motor (4); Gear II (6) is installed on the auger (9); The chain (7) connects gear I (5) and gear II (6) respectively and is used for power transmission.

6. The high-efficiency powder conveying device with large-diameter discharge as described in claim 1, characterized in that, The weight of the powder received in the trough (1) shall not be less than 500 kg.

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