Automatic feeding device for high-anti-crack waterproof mortar

By improving the drive and support structure of the feeding hopper, and using a transmission belt and electromagnet to achieve automatic tilting of the feeding hopper, the installation difficulties and wear problems of the traditional motor drive structure are solved, and efficient and low-cost feeding operation is achieved.

CN224296169UActive Publication Date: 2026-05-29ZHEJIANG BULK CEMENT & READY-MIXED MORTAR DEVELOPMENT RESEARCH ASSOCIATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG BULK CEMENT & READY-MIXED MORTAR DEVELOPMENT RESEARCH ASSOCIATION
Filing Date
2025-06-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In the existing technology, the motor drive structure of the feeding hopper in the traditional mortar production process has problems such as difficult installation, high cost, large wear and complicated maintenance. Especially when handling large and heavy materials, the motor needs high power and is prone to wear.

Method used

The design of the feeding hopper is improved by adopting a drive structure and a support structure. Through the cooperation of the transmission structure and electromagnet, the feeding hopper can be automatically flipped, reducing the dependence on high-power motors and using the material's own center of gravity to achieve the flipping.

Benefits of technology

It reduces the operating cost and wear of the motor, simplifies the maintenance process, and improves the turning efficiency and reliability of the feeding hopper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of high anti-crack waterproof mortar automatic feeding device, including loading frame, multiple feeding bins are hingedly connected in loading frame inner interval through pivot, the inside of feeding bin is hollow, upper side forms open mouth to place raw material, and transmission structure is arranged at the gap of one side of loading frame and feeding bin, wherein the side of feeding bin forms drive structure. The utility model is driven by the drive structure and support structure of the both sides cooperation of feeding bin, so that it is fixed by support structure in early stage, and motor is not needed to support entire feeding bin to keep balance, motor also does not need to continue to use force when overturning, and high-power motor is not needed to be used to drive overturning, and only need to overturn by the material of unbalanced state after the center of gravity of feeding bin (not affected by external force) is offset.
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Description

Technical Field

[0001] This utility model relates to the technical field of mortar mixing equipment, specifically to an automatic feeding device for high crack-resistant and waterproof mortar. Background Technology

[0002] Mortar is a binding material used in bricklaying in construction. It is made by mixing sand and cementing materials (cement, lime paste, clay, etc.) with water in a certain proportion. It is also called mortar or cement paste. High crack-resistant and waterproof mortar is usually composed of cement, aggregates (such as fine sand, quartz sand, etc.), polymer emulsion, fibers (such as wood fibers, etc.), fillers (such as silica fume, quartz powder, etc.), and various additives (such as stabilizers, defoamers, water-repellent agents, early-strength agents, etc.). Currently, in the mortar production process, the raw materials are usually weighed and fed manually or mechanically, and then mixed using a mixer.

[0003] Since the feeding hopper is essentially used up in a single operation during each feeding and processing cycle, a large number of feeding hoppers are generally required. It is not recommended to use a motor to drive the rotation. Firstly, the large number of hoppers increases costs and complicates maintenance. Secondly, the motor needs to maintain the balance of the entire feeding hopper before rotating, requiring force throughout the process. Furthermore, traditional motor-driven gear-driven rotating structures often require large, high-powered motors due to the weight of the concrete raw materials. Using large motors presents installation difficulties, high costs, and significant internal friction. If the material inside the feeding hopper is heavy, prolonged, repeated driving, and hovering processes can easily cause wear and tear on the motor.

[0004] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic feeding device for high crack-resistant and waterproof mortar, which solves the problems mentioned in the background art by improving the structure of the drive unit.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for high crack-resistant and waterproof mortar, comprising a feeding frame, with multiple feeding bins pivotally connected at intervals via rotating shafts within the feeding frame. Each feeding bin is hollow inside, with an opening on its upper side for material insertion. A transmission structure is provided at the gap between the feeding frame and one side of the feeding bins, wherein one side of the feeding bins forms a driving structure. The driving structure includes a first tooth and a second tooth mounted on the transmission structure, with the first tooth positioned at intervals on both sides of the second tooth. A gear capable of meshing with the corresponding rotating shaft is mounted on the side of each feeding bin. A support structure is provided on the other side of the feeding bins, and when the driving structure operates, the support structure relieves the supporting force on the feeding bins.

[0009] Preferably, the transmission structure includes two horizontally spaced pulleys, with a taut conveyor belt closedly covering the pulleys. One pulley serves as the driving pulley and is driven by a motor mounted on the loading frame, while the other pulley serves as the driven pulley.

[0010] Preferably, tooth one and tooth two are fixedly installed on the inner side of the conveyor belt.

[0011] Preferably, the support structure includes an electromagnet installed on the inner wall of the feeding frame, and the corresponding side of the feeding bin is made of iron material. When energized, the electromagnet will attract and fix the feeding bin.

[0012] Preferably, the interval between tooth one and tooth two is sufficient to allow the gear to idle.

[0013] Preferably, the number of teeth two and teeth one on one side combined can indirectly cause the opening of the empty feeding bin to flip to the top.

[0014] (III) Beneficial Effects

[0015] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: The automatic feeding device for high crack-resistant waterproof mortar of this utility model, with the help of the driving structure and support structure set on both sides of the feeding bin, can achieve fixation in the early stage by the support structure, without the need for the motor to support the entire feeding bin to maintain balance. When flipping, the motor does not need to continuously apply force, and there is no need to use a high-power motor to drive the flipping. The flipping can be achieved by the unbalanced material in the feeding bin (which is not subject to external force) after the center of gravity shifts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear side of the feeding hopper of this utility model;

[0018] Figure 3This is a schematic diagram of the front side of the feeding hopper of this utility model;

[0019] Figure 4 This is a schematic diagram of the movement process of the feeding bin of this utility model;

[0020] Figure 5 This is a simplified schematic diagram of the rotating feeding bin of this utility model.

[0021] In the diagram: 1. Loading frame; 2. Feeding bin; 3. Drive motor; 4. Electromagnet; 5. Iron block; 6. Pulley; 7. Conveyor belt; 8. Gear; 9. Gear 1; 10. Gear 2. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown: An automatic feeding device for high crack-resistant and waterproof mortar includes a feeding frame 1 (the feeding frame 1 can be configured to be vertically continuous and can be located above the mixer for direct feeding). Multiple feeding bins 2 are spaced apart inside the feeding frame 1. The feeding bins 2 are installed via pivot joints, allowing them to be tilted under load. The feeding bins 2 are hollow inside, with an opening on the top for material insertion. A conventional weighing module can be installed on the feeding bins 2 to accurately monitor the material usage.

[0024] This embodiment mainly improves the driving method of the feeding section, abandoning the traditional method of feeding materials entirely driven by a motor, and can achieve the following: Figure 2-3 As shown: A transmission structure is set at the gap between the loading frame 1 and the feeding bin 2 on one side, namely two conventional horizontally spaced pulleys 6, with a taut conveyor belt 7 closed and wrapped on the pulleys 6. One pulley 6 is the driving wheel and is driven by a motor installed on the loading frame 1, while the other pulley 6 is the driven wheel.

[0025] As the part that drives the tilting of the feeding bin 2, tooth 9 and tooth 10 are specifically set on the conveyor belt 7. Tooth 9 is located on both sides of tooth 10. Gear 8 is installed on the shaft of each feeding bin 2 on the corresponding side. During use, tooth 9 and tooth 10 can mesh with gear 8 respectively. The other side of the feeding bin 2 is supported by an electromagnet 4 and reaches a horizontal state. The corresponding side of the feeding bin 2 is made of iron material. When energized, the electromagnet 4 attracts and fixes the feeding bin 2. When de-energized, the force on the feeding bin 2 is released.

[0026] It should be noted that the teeth of gear 8-9, which are in pre-contact, serve to disrupt the balance of feed bin 2 (as shown in the attached diagram). Figure 5As shown, after the balance of feeding bin 2 is broken, the material inside can automatically drive feeding bin 2 to flip by the unbalanced center of gravity. Gear 8 and the rear tooth 9 together form a function to correct feeding bin 2 back to its original position after flipping (that is, tooth 10 combined with the rear tooth 9 can just drive feeding bin 2 to flip to open upward).

[0027] The difference in the driving method of this implementation is that it does not require the motor to support the entire feeding bin 2 to maintain balance in the early stage, and it does not require continuous force when flipping, nor does it require a high-power motor to drive the flipping.

[0028] During operation, tooth 9 and gear 8 are pre-engaged. When they contact, the electromagnet 4 is de-energized. At this time, there are few teeth 9, and only gear 8 is driven to apply an external force to the feed hopper 2, which is in a preliminary equilibrium. At this time, there is a gap between tooth 9 and tooth 10. The rotation of feed hopper 2 and gear 8 will not affect tooth 9 or tooth 10. After feed hopper 2 flips over to pour out the material, the conveyor belt continues to drive, causing tooth 10 and tooth 9 to continue moving and driving the empty feed hopper 2 to rotate until the opening faces upward (because the empty state of feed hopper 2 is not open downward, the number of teeth is determined according to the conventional method of feed hopper 2 flipping to open upward when empty). This process can be found in the appendix. Figure 4 As shown in the diagram, subsequent operations only require the motor to be reversed to repeat the cycle.

[0029] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.

Claims

1. An automatic feeding device for high crack-resistant and waterproof mortar, comprising a feeding frame, wherein multiple feeding bins are pivotally connected at intervals within the feeding frame via rotating shafts, the feeding bins being hollow inside and having an opening on the upper side for loading raw materials, characterized in that: A transmission structure is provided at the gap between the loading frame and the feeding bin on one side, wherein a driving structure is formed on one side of the feeding bin. The driving structure includes a tooth 1 and a tooth 2 provided on the transmission structure. Tooth 1 is located at intervals on both sides of tooth 2. A gear capable of meshing with the rotating shaft on the corresponding side of each feeding bin is installed. A support structure is provided on the other side of the feeding bin. When the driving structure is in operation, the support structure relieves the supporting force on the feeding bin.

2. The automatic feeding device for high crack-resistant and waterproof mortar according to claim 1, characterized in that: The transmission structure includes two horizontally spaced pulleys, with a taut conveyor belt closed over the pulleys. One pulley serves as the driving pulley and is driven by a motor mounted on the loading frame, while the other pulley serves as the driven pulley.

3. The automatic feeding device for high crack-resistant and waterproof mortar according to claim 2, characterized in that: The first tooth and the second tooth are fixedly installed on the inner side of the conveyor belt.

4. The automatic feeding device for high-anti-crack waterproof mortar according to claim 1, characterized in that: The support structure includes an electromagnet installed on the inner wall of the feeding frame. The corresponding side of the feeding bin is made of iron material. When energized, the electromagnet will attract and fix the feeding bin.

5. The automatic feeding device for high-anti-crack waterproof mortar according to claim 1, characterized in that: The gap between tooth one and tooth two allows the gear to idle.

6. The automatic feeding device for high-anti-crack waterproof mortar according to claim 1, characterized in that: The combined number of teeth two and one of teeth one on one side can indirectly cause the opening of the empty feeding bin to flip to the top.