Pre-fixing structure of dolomite powder charging bag

By designing a combined structure of brackets, connecting rings, and clamping blocks, the opening of the dolomite powder filling bag is automatically fixed, solving the problems of paper-plastic composite bags tipping over and collapsing, and realizing automated fixing of the filling process.

CN223935106UActive Publication Date: 2026-02-24武宣信宝矿业有限公司
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Patent Information

Application Number
CN202520693042.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-24
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

When dolomite powder is packed into paper-plastic composite bags, the bag opening is prone to tipping over and collapsing, leading to material leakage. It is necessary to manually hold the bag opening to prevent it from tipping over.

Method used

A pre-fixing structure for dolomite powder filling bags is designed, including a bracket, a connecting ring, a placement ring, and a pressing block. The pressing block moves down to press the opening of the filling bag, thereby achieving automatic fixing and preventing the bag opening from closing or tipping over.

Benefits of technology

The bag opening can be secured without manual support, preventing the bag from closing or tipping over and ensuring a smooth filling process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pre-fixing structure of a dolomite powder charging bag, which belongs to the technical field of dolomite powder processing and comprises a support, a cross rod is arranged at the top of the support, a connecting ring is arranged at the tail end of the cross rod, a placing ring is arranged in the connecting ring and used for placing the charging bag, a pressing block is arranged on the connecting ring, and the pressing block is used for pressing the charging bag. And a straight column is arranged at the bottom of the pressing block, is connected with the connecting ring and can move downwards, so that the pressing block presses the charging bag on the placing ring. The pressing block moves downwards to press the loading bag opening in the placing ring, the loading bag can be loaded without manually holding the bag opening of the loading bag, and the phenomenon that the bag opening of the loading bag is closed or toppled during loading is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of dolomite powder processing technology, and in particular to a pre-fixing structure for dolomite powder filling bags. Background Technology

[0002] Marble powder is a powdery substance made from processed and ground dolomite. Its main components are a double salt of calcium carbonate and magnesium carbonate, with the ideal chemical formula CaMg(CO3)2. However, natural dolomite usually contains some impurities, such as compounds of elements like silicon, iron, and aluminum.

[0003] Because the material of paper-plastic composite bags is relatively soft, when bagging dolomite powder, the bags are prone to tipping over as the amount of dolomite powder increases. It is necessary for a person to stand in front of the paper-plastic composite bag, lift the edge of the bag by hand, and stir the dolomite powder inside the bag from time to time to prevent the dolomite powder from accumulating too much in one place and to prevent the edge of the paper-plastic composite bag from collapsing. Once the amount of dolomite powder inside the bag reaches a certain level, it is easy to leak out from the collapsed edge, causing the paper-plastic composite bag to tip over. Utility Model Content

[0004] The main purpose of this utility model is to provide a pre-fixing structure for dolomite powder filling bags, which aims to solve the problems mentioned in the background above. It eliminates the need for manual holding of the bag opening to fix the bag, thus preventing the bag opening from closing or tipping over during filling.

[0005] To achieve the above objectives, this utility model proposes a pre-fixing structure for dolomite powder filling bags, including a bracket, a crossbar at the top of the bracket, a connecting ring at the end of the crossbar, a placement ring inside the connecting ring for placing the filling bag, a pressing block on the connecting ring, a straight column at the bottom of the pressing block, the straight column being connected to the connecting ring and capable of moving downwards to press the filling bag on the placement ring.

[0006] Optionally, the connecting ring is provided with a connecting strip, which connects to the placement ring and fixes the placement ring inside the connecting ring.

[0007] Optionally, the connecting ring has a through hole, and the straight column passes through the through hole and connects to the connecting ring.

[0008] Optionally, a limiting groove and a channel are formed on the inner wall of the through hole, and the limiting groove is connected to the channel.

[0009] Optionally, the straight column is provided with a limiting platform, which is engaged in the limiting groove and can disengage from the limiting groove to enter the channel.

[0010] Optionally, the bottom of the straight column passes through the through hole and is exposed below the connecting ring, and is provided with a frustum.

[0011] Optionally, an elastic element is fitted onto the straight column, with one end of the elastic element abutting against the frustum and the other end abutting against the bottom of the connecting ring.

[0012] Optionally, the clamping block is provided with a plurality of pressing blocks, which can press down on the material bag on the placement ring when the clamping block moves down.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The dolomite powder filling bag pre-fixing structure of this utility model includes a bracket with a crossbar at the top and a connecting ring at the end. A placement ring is located inside the connecting ring for placing the filling bag. A pressing block is mounted on the connecting ring, and a straight column is located at the bottom of the pressing block. The straight column is connected to the connecting ring and can move downwards to press the filling bag on the placement ring. By pressing the opening of the filling bag on the placement ring with the downward movement of the pressing block, the filling bag can be secured without manual support, preventing the bag from closing or tipping over during filling. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an embodiment of the pre-fixing structure for dolomite powder filling bags of this utility model;

[0017] Figure 2 This is a partial sectional view of the left side of the pre-fixed structure of the dolomite powder filling bag of this utility model.

[0018] Explanation of icon numbers:

[0019]

[0020]

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] This utility model proposes a pre-fixing structure 100 for dolomite powder filling bags.

[0026] Please see Figures 1-2 In one embodiment of this utility model, the dolomite powder filling bag pre-fixing structure 100 includes a bracket 10, a crossbar 11 at the top of the bracket 10, a connecting ring 20 at the end of the crossbar 11, a placement ring 30 inside the connecting ring 20 for placing the filling bag, a pressing block 40 on the connecting ring 20, and a straight column 41 at the bottom of the pressing block 40. The straight column 41 is connected to the connecting ring 20 and can move downward so that the pressing block 40 presses down on the filling bag on the placement ring 30.

[0027] In this embodiment, the support 10 has a base 12 at its bottom. The base 12 has a certain weight and can be made of iron to ensure that the support 10 can stand stably. The connecting ring 20 has a connecting strip 21, which connects to the placement ring 30 and fixes the placement ring 30 inside the connecting ring 20. The connecting ring 20 and the placement ring 30 are hollow rings, and the inner diameter of the connecting ring 20 is larger than the outer diameter of the placement ring 30. The connecting strip 21 is bent so that the filling bag can be placed in the internal space of the placement ring 30. Then, the bag opening is turned outward on the placement ring 30, and then the pressing block 40 is moved down to press the turned-out bag opening, thus fixing the filling bag and preventing the material from falling out due to the bag opening shifting or closing during filling.

[0028] In one embodiment of this utility model, the connecting ring 20 is provided with a through hole 22, the straight column 41 passes through the through hole 22 and is connected to the connecting ring 20, the inner wall of the through hole 22 is provided with a limiting groove 24 and a channel 23, the limiting groove 24 and the channel 23 are connected; the straight column 41 is provided with a limiting platform 42, the limiting platform 42 is locked in the limiting groove 24, and can disengage from the limiting groove 24 and enter the channel 23.

[0029] The bottom of the straight column 41 passes through the through hole 22 and is exposed below the connecting ring 20 and is provided with a frustum 43. An elastic element 44 is sleeved on the straight column 41, with one end of the elastic element 44 abutting against the frustum 43 and the other end abutting against the bottom of the connecting ring 20.

[0030] In this embodiment, the elastic element 44 can be a spring, but is not limited to this. Furthermore, the straight column 41 can rotate on the clamping block 40, and the cross-sectional area of ​​the frustum 43 is larger than the diameter of the through hole 22, which can limit the clamping block 40 and prevent it from detaching from the connecting ring 20.

[0031] Understandably, in the initial state, the limiting platform 42 is engaged in the limiting groove 24, and the pressing block 40 is located above the placement ring 30, not in contact with it. When the rotating column 41 is rotated, causing the limiting platform 42 to enter the channel 23, the pressing block 40 is moved downwards under the elastic force of the elastic member 44, pressing the bag opening on the placement ring 30 to secure the bag. After filling, the column 41 is pushed upwards against the truncated cone 43. When the limiting platform 42 reaches the position of the limiting groove 24, i.e., when the column 41 can rotate, the column 41 is rotated, causing the limiting platform 42 to engage in the limiting groove 24, displaced from the channel 23, thus releasing the bag opening for subsequent sealing.

[0032] In one embodiment of this utility model, the pressing block 40 is provided with a plurality of pressing blocks 45. When the pressing block 40 moves down, the pressing blocks 45 can press down the material bag on the placement ring 30.

[0033] In this embodiment, the bottom of the pressing block may be provided with a rubber block to increase the friction with the bag opening, which can more firmly press the bag opening and prevent the bag opening from falling off during filling.

[0034] In use: First, move the bracket 10 below the discharge port of the hopper, place the filling bag inside the placement ring 30, and then turn the bag opening outwards onto the placement ring 30. At this time, the straight column 41 can be rotated so that the limiting platform 42 enters the channel 23. Under the elastic force of the elastic element 44, the pressing block 40 is moved down so that the pressing block 40 presses down on the bag opening on the placement ring 30 to fix the filling bag. After filling is completed, push the straight column 41 upwards against the truncated cone 43. When the limiting platform 42 reaches the position of the limiting groove 24, that is, when the straight column 41 can rotate, rotate the straight column 41 so that the limiting platform 42 is inserted into the limiting groove 24 and misaligned with the channel 23 to release the bag opening for subsequent sealing.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pre-fixing structure for a dolomite powder filling bag, characterized in that, The device includes a support frame, a crossbar at the top of the support frame, a connecting ring at the end of the crossbar, a placement ring inside the connecting ring for placing a filling bag, a pressing block on the connecting ring, a straight column at the bottom of the pressing block, the straight column being connected to the connecting ring and capable of moving downwards to press the filling bag on the placement ring.

2. The pre-fixing structure for dolomite powder filling bags as described in claim 1, characterized in that: The connecting ring is provided with a connecting strip, which connects to the placement ring and fixes the placement ring inside the connecting ring.

3. The pre-fixing structure for dolomite powder filling bags as described in claim 1, characterized in that: The connecting ring has a through hole, and the straight column passes through the through hole and connects to the connecting ring.

4. The pre-fixing structure for dolomite powder filling bags as described in claim 3, characterized in that: The inner wall of the through hole is provided with a limiting groove and a channel, and the limiting groove is connected to the channel.

5. The pre-fixing structure for dolomite powder filling bags as described in claim 4, characterized in that: The straight column is provided with a limiting platform, which is locked in the limiting groove and can disengage from the limiting groove to enter the channel.

6. The pre-fixing structure for dolomite powder filling bags as described in claim 5, characterized in that: The bottom of the straight column passes through the through hole and is exposed below the connecting ring, and is provided with a frustum.

7. The pre-fixing structure for dolomite powder filling bags as described in claim 6, characterized in that: An elastic element is fitted onto the straight column, with one end of the elastic element abutting against the frustum and the other end abutting against the bottom of the connecting ring.

8. The pre-fixing structure for dolomite powder filling bags as described in claim 1, characterized in that: The clamping block is provided with several pressing blocks. When the clamping block moves down, the pressing blocks can press down on the filling bag on the placement ring.