A screw conveyor for isomaltitol powder

By adopting variable pitch spiral blades and stirring blades in the isomaltose powder spiral conveyor, the problem of powder accumulation and blockage at the feed inlet is solved, achieving efficient and uniform powder conveying.

CN224278692UActive Publication Date: 2026-05-26JIANGSU XIANZHUO FOOD SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XIANZHUO FOOD SCI & TECH CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Isomaltose powder has a fine particle size and a smooth surface, which makes it easy to accumulate at the feed inlet of the screw conveyor, affecting the conveying efficiency and causing blockage.

Method used

Design a screw conveyor for isomaltitol powder, which adopts a variable pitch screw blade structure. The screw pitch of the inlet section is larger to quickly receive the powder, and the screw pitch of the outlet section is smaller to control the discharge rate. The agitator blade is driven by a pulley and a transmission belt to prevent powder accumulation. The drive component and the unloading component are combined to prevent blockage.

Benefits of technology

It effectively prevents powder from accumulating and clogging at the feed inlet, ensuring conveying efficiency and uniformity, and reducing the risk of powder contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of isomaltitol powder conveying technology, and more particularly to an isomaltitol powder spiral conveying device, including a conveying box, a feeding hopper, and a drive assembly. The feeding hopper is fixedly installed at the upper end of the conveying box. A first rotating shaft is rotatably connected inside the conveying box, and a spiral blade is fixedly installed around the periphery of the first rotating shaft. A second rotating shaft is rotatably connected inside the feeding hopper, and multiple sets of stirring blades are fixedly installed around the periphery of the second rotating shaft. A pulley is fixedly installed at one end of both the second and first rotating shafts, and a transmission belt is provided around the pulley. The drive assembly is located at one end of the conveying box. This utility model drives the first rotating shaft to rotate through the drive assembly, which in turn drives the spiral blade to rotate, thus coordinating with the conveying box to convey the powder added to the conveying box. Through the cooperation of the two sets of pulleys and the transmission belt, the second rotating shaft can be driven to rotate synchronously, thereby driving the stirring blade to agitate the powder added in the feeding hopper and prevent the powder from clogging the feed inlet.
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Description

Technical Field

[0001] This utility model relates to the field of isomaltitol powder conveying technology, and in particular to an isomaltitol powder spiral conveying device. Background Technology

[0002] Isomaltitol is a functional sugar alcohol with characteristics such as low hygroscopicity, high heat resistance, low calories and non-cariogenicity. It is widely used in sugar-free foods, health products and other fields. When conveying isomaltitol powder, a screw conveyor is often used.

[0003] Because isomaltitol powder has a small particle size and a smooth surface, a large amount of powder tends to accumulate at the feed inlet of the screw conveyor when it enters the feeding hopper, affecting the conveying efficiency and easily clogging the feed inlet.

[0004] Therefore, to address the above problems, a screw conveyor for isomaltitol powder can be designed. By adding a stirring structure inside the feed hopper and using a variable pitch screw blade, the screw pitch in the inlet section is larger to quickly receive the powder, while the screw pitch in the outlet section is smaller to control the discharge rate, thus avoiding powder accumulation or uneven conveying. Utility Model Content

[0005] To overcome the problem that isomalt powder has a small particle size and a smooth surface, a large amount of powder tends to accumulate at the feed inlet of the screw conveyor when it enters the feeding hopper, which affects the conveying efficiency and can easily clog the feed inlet.

[0006] The technical solution of this utility model is as follows: a spiral conveying device for isomaltitol powder, comprising a frame, a conveying box, a feeding hopper, a drive assembly, an adjustment assembly, and a discharge assembly. The conveying box is rotatably connected to the inside of the frame. The feeding hopper is fixedly installed at the upper end of the conveying box and communicates with the feed inlet of the conveying box. A first rotating shaft is rotatably connected inside the conveying box. Spiral blades are fixedly installed on the periphery of the first rotating shaft. The pitch of the spiral blades gradually decreases from the feed inlet to the discharge outlet of the conveying box. A second rotating shaft is rotatably connected inside the feeding hopper. Multiple sets of stirring blades are fixedly installed on the periphery of the second rotating shaft. A pulley is fixedly installed at one end of both the second rotating shaft and the first rotating shaft. A transmission belt is provided around the pulley. The drive assembly is located at one end of the conveying box, the adjustment assembly is located below the conveying box, and the discharge assembly is located below the conveying box.

[0007] Preferably, the conveyor box is supported and installed by a frame. A feeding hopper allows isomalt powder to be added to the conveyor box. A drive assembly drives the first rotating shaft, which in turn rotates the spiral blades to transport the isomalt powder. The spiral blades have a variable pitch structure, with a larger pitch at the inlet for rapid powder reception and a smaller pitch at the outlet to control the discharge rate and prevent powder accumulation or uneven conveying. Two sets of pulleys and a drive belt work together to drive the second rotating shaft synchronously, which in turn agitates the powder added to the feeding hopper, preventing isomalt powder from accumulating and clogging the conveyor box's inlet. An adjustment assembly allows for adjustment of the conveyor box's outlet height, facilitating the transfer of isomalt powder at different heights. A discharge assembly protects the isomalt powder discharged from the conveyor box from contamination.

[0008] Preferably, four sets of casters are fixedly installed at the lower end of the frame, and two sets of handrails are symmetrically fixedly installed on both sides of the frame.

[0009] Preferably, a connecting bracket is fixedly installed on the periphery of a set of handrails, and a control panel is fixedly installed on one side of the connecting bracket.

[0010] Preferably, the drive assembly includes a mounting bracket, a motor, and a reducer. The mounting bracket is fixedly installed at one end of the conveyor box, the motor is fixedly installed inside the mounting bracket, the reducer is fixedly installed inside the mounting bracket, the output end of the motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the first rotating shaft.

[0011] Preferably, a hanging ring is fixedly installed at the lower end of the conveyor box, and an iron cable is installed below the conveyor box. The iron cable is connected to the hanging ring, and the lower end of the iron cable is in contact with the ground.

[0012] Preferably, the adjustment assembly includes a telescopic rod and a connecting seat. The telescopic rod is rotatably connected to the inside of the frame, and two sets of telescopic rods are symmetrically arranged. The connecting seat is fixedly installed at the lower end of the conveyor box, and two sets of connecting seats are symmetrically arranged and correspond to the telescopic rods. The connecting seat is rotatably connected to the output end of the telescopic rod.

[0013] Preferably, the unloading assembly includes a corrugated sleeve and a fixing plate. The corrugated sleeve is fixedly installed at the lower end of the conveyor box and is connected to the discharge port of the conveyor box. The fixing plate is fixedly installed at the lower end of the corrugated sleeve.

[0014] The beneficial effects of this utility model are:

[0015] Isomalt powder can be added to the conveyor box via the feeding hopper. A motor and reducer drive the first shaft to rotate stably, which in turn drives the spiral blades to rotate. This, in turn, conveys the isomalt powder into the conveyor box. The spiral blades have a variable pitch structure, with a larger pitch near the feed inlet to quickly receive the powder and prevent it from accumulating and clogging the inlet. The smaller pitch near the discharge outlet controls the discharge rate and prevents powder accumulation or uneven conveying. Through the cooperation of two sets of pulleys and a drive belt, the second shaft can rotate synchronously when the motor drives the first shaft. This, in turn, drives the agitator blades to stir the powder added to the feeding hopper, preventing the isomalt powder from accumulating in the feeding hopper and clogging the feed inlet of the conveyor box. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the isomaltitol powder spiral conveying device of this utility model.

[0017] Figure 2 This invention relates to a screw conveyor device for isomaltitol powder. Figure 1 Enlarged 3D structural diagram of the circled area;

[0018] Figure 3 The diagram shown is a second three-dimensional structural schematic of the isomaltitol powder spiral conveying device of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the conveyor box of the isomaltitol powder screw conveyor of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 101. Casters; 102. Handrail; 103. Connecting bracket; 104. Control panel; 2. Conveyor box; 201. First rotating shaft; 202. Spiral blade; 203. Hanging ring; 204. Iron cable; 3. Feed hopper; 301. Second rotating shaft; 302. Agitating blade; 401. Pulley; 402. Drive belt; 501. Mounting bracket; 502. Motor; 503. Reducer; 601. Telescopic rod; 602. Connecting seat; 701. Corrugated sleeve; 702. Fixing plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 4This utility model provides an embodiment: a screw conveyor for isomaltitol powder, comprising a frame 1, a conveying box 2, a feeding hopper 3, a drive assembly, an adjustment assembly, and a discharge assembly. The conveying box 2 is rotatably connected to the inside of the frame 1. The feeding hopper 3 is fixedly installed at the upper end of the conveying box 2, and the feeding hopper 3 communicates with the feed inlet of the conveying box 2. A first rotating shaft 201 is rotatably connected inside the conveying box 2. A spiral blade 202 is fixedly installed on the periphery of the first rotating shaft 201. The pitch of the spiral blade 202 is from the feed inlet of the conveying box 2. The feed inlet of the conveyor box 2 gradually decreases in size towards the discharge outlet. The feed hopper 3 is internally connected to a second rotating shaft 301. Multiple sets of stirring blades 302 are fixedly installed around the second rotating shaft 301. Pulleys 401 are fixedly installed at one end of both the second rotating shaft 301 and the first rotating shaft 201. A transmission belt 402 is provided around the pulleys 401. The drive assembly is located at one end of the conveyor box 2, the adjustment assembly is located below the conveyor box 2, and the unloading assembly is located below the conveyor box 2. The conveyor box is controlled by a frame 1. 2. Support and installation are provided. The feeding hopper 3 allows for the addition of isomaltose powder to the conveying box 2. A drive assembly drives the first rotating shaft 201 to rotate, which in turn rotates the spiral blade 202. This, in conjunction with the conveying box 2, allows for the conveying of the isomaltose powder. The spiral blade 202 employs a variable pitch structure, with a larger pitch at the inlet section for rapid powder reception and a smaller pitch at the outlet section to control the discharge rate and prevent powder accumulation or uneven conveying. Two sets of pulleys 401 are also included. In conjunction with the transmission belt 402, the second rotating shaft 301 can be driven to rotate synchronously, thereby driving the stirring blade 302 to agitate the powder added in the feeding hopper 3, preventing isomaltitol powder from accumulating in the feeding hopper 3 and clogging the inlet of the conveying box 2. The height of the outlet of the conveying box 2 can be adjusted by setting the adjustment component, which facilitates the transmission of isomaltitol powder at different heights. The unloading component can shield and protect the isomaltitol powder unloaded from the conveying box 2 to prevent contamination.

[0023] Please see Figure 1 and Figure 2In this embodiment, four sets of casters 101 are fixedly installed at the lower end of the frame 1, and two sets of handrails 102 are symmetrically fixedly installed on both sides of the frame 1. By setting the handrails 102, the frame 1 can be easily moved by the casters 101, thereby moving the conveyor box 2 to a suitable work area. A connecting bracket 103 is fixedly installed around one set of handrails 102, and a control panel 104 is fixedly installed on one side of the connecting bracket 103. The control panel 104 is supported and installed by the connecting bracket 103, and the control panel 104 can be used to control the drive component and the adjustment component. The drive component includes a mounting bracket. The system comprises a frame 501, a motor 502, and a reducer 503. The frame 501 is fixedly installed at one end of the conveyor box 2. The motor 502 is fixedly installed inside the frame 501, and the reducer 503 is fixedly installed inside the frame 501. The output end of the motor 502 is fixedly connected to the input end of the reducer 503, and the output end of the reducer 503 is fixedly connected to the first rotating shaft 201. The frame 501 is used to install and protect the motor 502 and the reducer 503. The motor 502 drives the first rotating shaft 201 to rotate by increasing the torque through the reducer 503, thus ensuring the stable rotation of the first rotating shaft 201.

[0024] Please see Figure 3 In this embodiment, a hanging ring 203 is fixedly installed at the lower end of the conveyor box 2, and an iron cable 204 is provided below the conveyor box 2. The iron cable 204 is connected to the hanging ring 203, and the lower end of the iron cable 204 is in contact with the ground. By setting the hanging ring 203, the iron cable 204 can be hung below the conveyor box 2. By setting the iron cable 204 to contact the ground, the static electricity generated in the conveyor box 2 can be discharged in time. The adjustment component includes a telescopic rod 601 and a connecting seat 602. The telescopic rod 601 is rotatably connected to the inside of the frame 1. Two sets of telescopic rods 601 are symmetrically arranged. The connecting seat 602 is fixedly installed at the lower end of the conveyor box 2. Two sets of connecting seats 602 are symmetrically arranged and correspond to the telescopic rods 601. The connecting seat 602 is rotatably connected to the output end of the telescopic rod 601. The telescopic rod 601 is connected to the output box by the connecting seat 602, so that the telescopic rod 601 can drive the conveyor box 2 to rotate inside the frame 1, and adjust the height of the discharge port of the conveyor box 2 to facilitate the transfer of isomaltitol powder at different heights; the unloading assembly includes a corrugated sleeve 701 and a fixing plate 702. The corrugated sleeve 701 is fixedly installed at the lower end of the conveyor box 2 and is connected to the discharge port of the conveyor box 2. The fixing plate 702 is fixedly installed at the lower end of the corrugated sleeve 701; the corrugated sleeve 701 can shield and protect the discharged powder, and its soft nature can also be used to accommodate receiving containers of different heights. The fixing plate 702 is used to fix the corrugated sleeve 701 to the inlet of the receiving container.

[0025] During operation, the handle 102 can be used to easily push the frame 1 to move via the casters 101, thereby moving the conveyor box 2 to a suitable work area. The control panel 104 is used to control the telescopic rod 601 and the motor 502. First, the telescopic rod 601 is used to drive the conveyor box 2 to rotate inside the frame 1, and the height of the discharge port of the conveyor box 2 is adjusted to facilitate the transfer of isomaltitol powder at different heights. Then, the fixing plate 702 is used to fix the corrugated sleeve 701 to the inlet of the receiving container, so that the discharged isomaltitol powder is directly discharged into the receiving container after passing through the corrugated sleeve 701, preventing contamination.

[0026] Then, the motor 502 is started, and the isomaltitol powder can be added to the inside of the conveying box 2 using the feeding hopper 3. The motor 502, together with the reducer 503, drives the first rotating shaft 201 to rotate stably, which in turn drives the spiral blade 202 to rotate. This, in turn, helps the conveying box 2 to convey the isomaltitol powder added to the conveying box 2. The spiral blade 202 adopts a variable pitch structure. The pitch is larger near the inlet of the conveying box 2 to quickly receive the powder and prevent the powder from accumulating at the inlet of the conveying box 2 and causing blockage. The pitch is smaller near the outlet of the conveying box 2 to control the discharge amount and avoid powder accumulation or uneven conveying. By setting two sets of pulleys 401 and transmission belt 402, the second rotating shaft 301 can be driven to rotate synchronously, which in turn drives the stirring blade 302 to stir the powder added in the feeding hopper 3, preventing the isomaltitol powder from accumulating in the feeding hopper 3 and blocking the inlet of the conveying box 2.

[0027] During the conveying process, due to the poor hygroscopicity of isomalt powder, the dry powder is prone to generating static electricity during the conveying process, which causes the isomalt powder to easily adhere to the surface of the conveyor box 2 and the spiral blade 202. Therefore, the iron cable 204 is hung below the conveyor box 2 by the hanging ring 203. By using the iron cable 204 to contact the ground, the static electricity generated in the conveyor box 2 can be discharged in time, reducing the adsorption of powder.

[0028] Through the above steps, the first rotating shaft 201 is driven to rotate by the drive component, which in turn drives the spiral blade 202 to rotate. This, in conjunction with the conveying box 2, allows the powder added to the conveying box 2 to be conveyed. The spiral blade 202 adopts a variable pitch structure, with a larger pitch in the feeding section to quickly receive the powder and a smaller pitch in the discharge section to control the discharge volume, avoiding powder accumulation or uneven conveying. Through the cooperation of two sets of pulleys 401 and the transmission belt 402, the second rotating shaft 301 can be driven to rotate synchronously, thereby driving the stirring blade 302 to stir the powder added in the feeding hopper 3, preventing isomaltitol powder from accumulating in the feeding hopper 3 and clogging the inlet of the conveying box 2. This solves the problem that because isomaltitol powder has a small particle size and a smooth surface, a large amount of powder easily accumulates at the inlet of the spiral conveying device when it enters the feeding hopper 3 and then the spiral conveying device, affecting the conveying efficiency and easily clogging the inlet.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A isomalt powder screw conveyor device comprising a frame (1), characterized in that: It also includes a conveyor box (2), a feeding hopper (3), a drive assembly, an adjustment assembly, and a discharge assembly. The conveyor box (2) is rotatably connected to the inside of the frame (1). The feeding hopper (3) is fixedly installed on the upper end of the conveyor box (2). The feeding hopper (3) is connected to the feed inlet of the conveyor box (2). A first rotating shaft (201) is rotatably connected inside the conveyor box (2). A spiral blade (202) is fixedly installed on the periphery of the first rotating shaft (201). The pitch of the spiral blade (202) extends from the feed inlet of the conveyor box (2) to the discharge outlet. The opening gradually decreases, and the inside of the feeding hopper (3) is connected to the second rotating shaft (301). Multiple sets of stirring blades (302) are fixedly installed on the periphery of the second rotating shaft (301). A pulley (401) is fixedly installed at one end of both the second rotating shaft (301) and the first rotating shaft (201). A transmission belt (402) is provided on the periphery of the pulley (401). The drive component is located at one end of the conveying box (2), the adjustment component is located below the conveying box (2), and the unloading component is located below the conveying box (2).

2. The isomaltose powder screw conveyor device according to claim 1, characterized in that: Four sets of casters (101) are fixedly installed at the lower end of the frame (1), and two sets of handrails (102) are symmetrically fixedly installed on both sides of the frame (1).

3. The isomaltose powder screw conveyor device according to claim 2, characterized in that: A connecting bracket (103) is fixedly installed on the periphery of a set of handrails (102), and a control panel (104) is fixedly installed on one side of the connecting bracket (103).

4. The isomaltose powder screw conveyor device according to claim 1, characterized in that: The drive assembly includes a mounting bracket (501), a motor (502), and a reducer (503). The mounting bracket (501) is fixedly installed at one end of the conveyor box (2). The motor (502) is fixedly installed inside the mounting bracket (501). The reducer (503) is fixedly installed inside the mounting bracket (501). The output end of the motor (502) is fixedly connected to the input end of the reducer (503). The output end of the reducer (503) is fixedly connected to the first rotating shaft (201).

5. The isomaltose powder screw conveyor device according to claim 1, characterized in that: A hanging ring (203) is fixedly installed at the lower end of the conveyor box (2), and an iron cable (204) is provided below the conveyor box (2). The iron cable (204) is connected to the hanging ring (203), and the lower end of the iron cable (204) is in contact with the ground.

6. The isomaltose powder screw conveyor device according to claim 1, characterized in that: The adjustment assembly includes a telescopic rod (601) and a connecting seat (602). The telescopic rod (601) is rotatably connected to the inside of the frame (1). Two sets of telescopic rods (601) are symmetrically arranged. The connecting seat (602) is fixedly installed at the lower end of the conveyor box (2). Two sets of connecting seats (602) are symmetrically arranged and correspond to the telescopic rods (601). The connecting seat (602) is rotatably connected to the output end of the telescopic rod (601).

7. The isomaltose powder screw conveyor according to claim 1, characterized in that: The unloading assembly includes a corrugated sleeve (701) and a fixing plate (702). The corrugated sleeve (701) is fixedly installed at the lower end of the conveyor box (2). The corrugated sleeve (701) is connected to the discharge port of the conveyor box (2). The fixing plate (702) is fixedly installed at the lower end of the corrugated sleeve (701).