A manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine
The design of the manganese steel base plate clamping mechanism enables flexible adjustment of the manganese steel strip, solving the limitations of traditional customized structures, improving production efficiency and inventory management efficiency, and adapting to the needs of small-batch, multi-style production.
Patent Information
- Application Number
- CN202521656264.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-08-05
AI Technical Summary
The opening size of existing manganese steel bars is fixed and cannot be adjusted on-site, which means that production changes require waiting for customization, making it difficult to meet the production needs of small batches and multiple styles, and also resulting in high inventory management costs.
A manganese steel bottom plate clamping mechanism is designed, including a manganese steel bottom plate support, long manganese steel bars, short manganese steel bars and bottom connecting plates. The long and short manganese steel bars can be flexibly adjusted by adjusting the connection between the groove and the screw hole. Combined with the adjustment scale, an intuitive size display is provided to adapt to the opening size requirements of different bag types.
It enables rapid and precise adjustment of opening size, reduces production changeover time, lowers inventory management costs, adapts to the needs of small-batch, multi-style production, and avoids production stoppages caused by waiting for customized parts.
Smart Images

Figure CN224277853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile machinery and equipment technology, specifically to a manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine. Background Technology
[0002] In the fabric bag opening process, the core function of the bag opening machine is to achieve precise cutting and shaping of the bag opening. The accuracy and efficiency of opening size adjustment are key indicators that determine the processing quality and production pace of the bag opening. As the core supporting component of the bag opening machine, the manganese steel base plate forms the bag opening forming reference through the relative positions of its long and short sides, and the spacing between them directly corresponds to the bag opening size—which requires the base plate structure to be flexibly adjustable according to the size parameters of different fabric bag types.
[0003] Currently, the application of manganese steel base sheets in the industry still mainly follows a "customized adaptation" model: manufacturers need to first customize manganese steel strips with corresponding opening specifications according to the target bag opening size, and then fix the manganese steel strips to the base sheet base with bolts. This model has significant limitations: on the one hand, the opening size of the manganese steel strips is entirely dependent on prefabricated specifications and cannot be adapted to multi-size production needs through on-site adjustments. If a change in bag type is required, the customization cycle of the new specification manganese steel strips must be waited for. On the other hand, the inventory management cost of customized parts is high, and the bolt fixing method is prone to wear of the base bolt holes when frequently changed, further increasing maintenance costs.
[0004] This traditional structure of "fixed size and periodic replacement" is no longer suitable for the current production demands of the fabric processing industry, which require "small batches, multiple styles, and fast turnover." This is especially true in e-commerce customization and flexible manufacturing scenarios, where production stoppages caused by waiting for mold customization are even more pronounced. Therefore, to address these shortcomings, we propose a manganese steel bottom plate clamping mechanism for fabric bag opening machines with adjustable openings. Utility Model Content
[0005] The purpose of this utility model is to provide a manganese steel bottom plate clamping mechanism with adjustable opening for fabric bag opening machines, so as to solve the problems mentioned in the background art, where the manganese steel strips are fixed according to size, cannot be adjusted on site, and require waiting for customization when changing bag types, making it difficult to match the needs of small batches and multiple styles, and easily leading to production stagnation.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A manganese steel bottom plate clamping mechanism for an adjustable opening of a fabric bag opening machine includes a manganese steel bottom plate support, a pair of long manganese steel bars, a pair of short manganese steel bars, and a bottom connecting piece. The manganese steel bottom plate support is rectangular in structure. The pair of long manganese steel bars are symmetrically distributed on the bottom of the manganese steel bottom plate support near the longer sides on both sides. The pair of short manganese steel bars are symmetrically distributed on the bottom of the manganese steel bottom plate support near the shorter sides on both sides. Each long manganese steel bar is provided with an adjustment scale on its top, and the two adjustment scales are symmetrically distributed.
[0008] Preferably, the top of one side of the bottom connecting piece is connected to the bottom of one of the longer sides of the manganese steel base plate bracket by bolts. The top of the manganese steel base plate bracket near the top of both sides is provided with a first adjustment groove. At the bottom of each first adjustment groove, the top of a pair of long manganese steel strips is provided with a first adjustment screw hole. The first adjustment groove and the first adjustment screw hole are connected by bolts.
[0009] Preferably, the manganese steel base plate bracket has a first sliding groove at the bottom of the shorter side on both sides, and a second adjusting groove is formed through each of the first sliding grooves. Each of the short manganese steel strips is connected to a sliding plate near the outer wall. The sliding plate is slidably located in the first sliding groove. A second adjusting screw hole is formed on the sliding plate below the second adjusting groove. The second adjusting groove and the second adjusting screw hole are connected by bolts.
[0010] Preferably, the adjustment scale is arranged along the length of the long manganese steel strip, and its scale markings are adapted to the position adjustment stroke of the short manganese steel strip, so as to intuitively display the adjustment value of the bag opening size.
[0011] Preferably, the first adjustment groove is a long strip-shaped through groove, the length of which is parallel to the longer side of the manganese steel base plate support, and the length of the first adjustment groove is not less than the maximum adjustment distance required by the long manganese steel strip.
[0012] Preferably, the sliding plate and the short manganese steel strip are integrally formed and fixedly connected, and the width of the sliding plate is adapted to the width of the first sliding groove.
[0013] This utility model has the following beneficial effects:
[0014] 1. This application constructs a stable and flexible support system through modular assembly of manganese steel bottom plate bracket, long manganese steel strip, short manganese steel strip and bottom connecting piece. The long and short manganese steel strips are arranged along the long and short sides of the bracket respectively. With the connection method of adjustment groove and screw hole, the relative position of the two can be precisely adjusted to adapt to the opening size requirements of different bag types, breaking through the fixed limitations of traditional "customized" structure.
[0015] 2. The scale is arranged along the long manganese steel strip, and the scale is adapted to the adjustment stroke of the short manganese steel strip. It can intuitively display the opening size value. Operators can quickly and accurately complete the opening adjustment without relying on experience or additional measuring tools, which improves the consistency of bag opening processing size and ensures product quality.
[0016] 3. No need to wait for the customized manganese steel strip cycle. Bag production can be switched by adjusting the position of long and short manganese steel strips on site. It is especially suitable for the needs of "small batch and multiple styles" orders, shortens the production changeover time, solves the stagnation problem caused by mold waiting in e-commerce customization and flexible production scenarios, and improves the overall production rhythm. It abandons the traditional model of frequently changing manganese steel strips, eliminates the need to stock multiple specifications of customized manganese steel strips, simplifies inventory management, and optimizes production costs from the perspective of long-term use. Attached Figure Description
[0017] Figure 1 This is an overall isometric view of the present invention.
[0018] Figure 2 This is a top view of the present invention.
[0019] Figure 3 This is a bottom view of the present invention.
[0020] Figure 4 This is a schematic diagram of the long manganese steel bar and the short manganese steel bar of this utility model.
[0021] In the diagram: 1. Manganese steel base plate support; 11. First adjustment groove; 12. First sliding groove; 13. Second adjustment groove; 2. Long manganese steel strip; 21. First adjustment screw hole; 3. Short manganese steel strip; 31. Sliding plate; 32. Second adjustment screw hole; 4. Bottom connecting piece; 5. Adjustment scale; 6. Strong magnet groove; 7. Strong magnet. 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] Please see the appendix Figure 1 and Figure 3As shown, a manganese steel bottom plate clamping mechanism for an adjustable opening of a fabric bag opening machine includes a manganese steel bottom plate support 1, a pair of long manganese steel bars 2, a pair of short manganese steel bars 3, and a bottom connecting piece 4. The manganese steel bottom plate support 1 serves as the basic frame of the overall mechanism and has a rectangular structure to provide installation reference and limiting space for the long manganese steel bars 2 and short manganese steel bars 3. The pair of long manganese steel bars 2 are symmetrically distributed on the bottom of the manganese steel bottom plate support 1 near the longer sides. Strong magnet grooves 6 are symmetrically provided on the bottom of both sides of the manganese steel bottom plate support 1 (see attached diagram). Figure 3 As shown in the diagram, each strong magnet slot 6 is embedded with a strong magnet 7, allowing the long manganese steel strip 2 to fit more tightly against the manganese steel base plate support 1 via the strong magnet 7. A pair of short manganese steel strips 3 are symmetrically distributed inside the manganese steel base plate support 1 near the shorter sides on both sides. Their longer and shorter sides correspond to the adjustment directions of the long and short manganese steel strips, respectively. A pre-set adjustment groove provides a guide track for component adjustment. Each long manganese steel strip 2 has an adjustment scale 5 on its top, and the two adjustment scales 5 are symmetrically distributed. The adjustment scales 5 are arranged along the length of the long manganese steel strip 2, and their scale markings are adapted to the position adjustment stroke of the short manganese steel strip 3, used to intuitively display the adjustment value of the bag opening size (see details). Figure 1 As shown in the diagram, the adjustment scale 5 is set to one side with the middle of the long manganese steel strip 2 as the reference, which facilitates the adjustment of the reading; a pair of long manganese steel strips 2 are symmetrically distributed along the longer sides of both sides of the support, forming a forming reference in the length direction of the bag opening. Through the bolt connection with the first adjustment groove 11, the position can be slidably adjusted along the long side, which directly affects the length dimension of the bag opening; a pair of short manganese steel strips 3 are symmetrically distributed along the shorter sides of both sides of the support, forming a forming reference in the width direction of the bag opening. Through the cooperation of the sliding plate 31 and the first sliding groove 12, the position can be slidably adjusted along the short side, which determines the width dimension of the bag opening. The bolt connection between the sliding plate 31 and the second adjustment groove 13 realizes the fixation after adjustment. The adjustment scale 5 provides a visual reference for size adjustment.
[0024] The vertical distribution of the long manganese steel strip 2 (along the long side) and the short manganese steel strip 3 (along the short side) in this application, combined with the connection structure of the adjustment groove, the slide groove and the bolt, forms a two-way adjustment system of "length + width", which breaks through the size fixity of traditional customized manganese steel strips and can adapt to the diverse size requirements of different bag types.
[0025] Furthermore, the adjustment scale 5 precisely matches the position adjustment stroke, allowing operators to directly read and lock the target size without relying on external measuring tools, reducing adjustment errors and avoiding the cumbersome process of traditional "disassembly-replacement-re-fixing", shortening the changeover adjustment time from several hours to minutes.
[0026] Please see the appendix Figure 2 - Figure 4As shown, the bottom connecting piece 4 is bolted to the bottom of one of the longer sides of the manganese steel base plate bracket 1. The bottom connecting piece 4 acts as a "bridge" between the mechanism and the main body of the bag-opening machine. It is fixed to the bottom of the longer side of the bracket with bolts, integrating the clamping mechanism into the bag-opening machine and ensuring the overall structural stability. The single-sided top connection simplifies the assembly process and provides space for adjusting the long manganese steel strip 2 along its length, avoiding interference. The manganese steel base plate bracket 1 has a first adjustment groove 11 near the top of both longer sides. At the bottom of each first adjustment groove 11, a pair of long manganese steel strips 2 have first adjustment screw holes 21. The first adjustment groove 11 is a long, narrow through groove, its length direction being parallel to... The longer side of the manganese steel base plate bracket 1 is parallel, and the length of the first adjustment groove 11 is not less than the maximum adjustment distance required for the long manganese steel strip 2. A long, narrow through groove is provided at the top of the longer side of the bracket to provide a "track" for the position adjustment of the long manganese steel strip 2. Its length direction is parallel to the longer side of the bracket, limiting the movement of the long manganese steel strip 2 along the length of the bag opening. The length is not less than the maximum adjustment distance of the long manganese steel strip 2, ensuring that the adjustment range of the bag opening length covers production needs. The first adjustment groove 11 is connected to the first adjustment screw hole 21 by bolts. The first adjustment screw hole 21 is located at the top of the long manganese steel strip and is bolted to the first adjustment groove 11, achieving "adjustable + locked" adjustment of the long manganese steel strip position. Loosening the bolt during adjustment allows the long manganese steel strip 2 to... Slide along the groove, adjust to the correct position, and tighten the bolts to fix the position of the long manganese steel strip. The manganese steel base plate bracket 1 has a first sliding groove 12 near the bottom of the shorter sides on both sides. A second adjustment groove 13 is formed through each first sliding groove 12. Each short manganese steel strip 3 is connected to a sliding plate 31 near the outer wall. The sliding plate 31 slides within the first sliding groove 12. The sliding plate 31 and the short manganese steel strip 3 are integrally formed and fixedly connected. The width of the sliding plate 31 matches the width of the first sliding groove 12. The groove in the first sliding groove 12 at the bottom of the shorter side of the bracket provides guidance for the sliding plate 31 of the short manganese steel strip 3, limiting the movement of the short manganese steel strip along the width of the bag opening, ensuring the linear motion accuracy of the short manganese steel strip during adjustment. The plate 31 and the short manganese steel strip 3 are integrally formed and embedded in the first sliding groove 12. The width is adapted to the sliding groove to ensure that the short manganese steel strip does not shift or shake during adjustment, thus improving structural stability. A second adjusting screw hole 32 is provided on the sliding plate 31 below the second adjusting groove 13. The second adjusting groove 13 and the second adjusting screw hole 32 are connected by bolts. The second adjusting groove 13 passes through the long groove of the first sliding groove 12, providing a "moving channel" for the locking bolt of the short manganese steel strip. It is adapted to the adjustment stroke of the sliding plate 31 along the sliding groove. The second adjusting screw hole 32 is opened on the sliding plate 31 and is engaged with the second adjusting groove 13 by bolts to realize the "adjustment + fixation" of the position of the short manganese steel strip. The principle is the same as the first adjustment structure of the long manganese steel strip.
[0027] This application utilizes a bidirectional adjustment structure of "length + width" to cover the size requirements of different bag types. The combination of the adjustment groove and the screw hole allows operators to make fine adjustments as needed, replacing the traditional fixed mode of "customized manganese steel strips" and flexibly responding to small-batch, multi-style production.
[0028] By abandoning the "one size, one customized manganese steel bar" model, the costs of customized molds and inventory backlog are reduced; the rapid changeover capability adapts to flexible production scenarios such as e-commerce customization and small-batch quick response, avoiding production stagnation caused by waiting for customized parts and improving overall capacity.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A manganese steel bottom plate clamping mechanism for an adjustable opening of a fabric bag opening machine, comprising a manganese steel bottom plate support (1), a pair of long manganese steel bars (2), a pair of short manganese steel bars (3), and a bottom connecting piece (4), characterized in that: The manganese steel substrate support (1) is rectangular in shape. A pair of long manganese steel bars (2) are symmetrically distributed on the bottom of the manganese steel substrate support (1) near the longer sides. A pair of short manganese steel bars (3) are symmetrically distributed on the inside of the manganese steel substrate support (1) near the shorter sides. Each long manganese steel bar (2) is provided with an adjustment scale (5) at the top, and the two adjustment scales (5) are symmetrically distributed.
2. The manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine according to claim 1, characterized in that: The top of one side of the bottom connecting piece (4) is connected to the bottom of one of the longer sides of the manganese steel base plate bracket (1) by bolts. The manganese steel base plate bracket (1) has a first adjustment groove (11) near the top of the two longer sides. A pair of long manganese steel bars (2) at the bottom of each first adjustment groove (11) have a first adjustment screw hole (21) at the top. The first adjustment groove (11) and the first adjustment screw hole (21) are connected by bolts.
3. The manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine according to claim 1, characterized in that: The manganese steel base plate bracket (1) has a first sliding groove (12) at the bottom of the shorter side on both sides. A second adjustment groove (13) is provided through each first sliding groove (12). Each short manganese steel strip (3) is connected to a sliding plate (31) near the outer wall. The sliding plate (31) slides in the first sliding groove (12). A second adjustment screw hole (32) is provided on the sliding plate (31) below the second adjustment groove (13). The second adjustment groove (13) and the second adjustment screw hole (32) are connected by bolts.
4. The manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine according to claim 1, characterized in that: The adjustment scale (5) is arranged along the length of the long manganese steel strip (2), and its scale markings are adapted to the position adjustment stroke of the short manganese steel strip (3) to intuitively display the adjustment value of the bag opening size.
5. The manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine according to claim 2, characterized in that: The first adjustment groove (11) is a long strip through groove, the length of which is parallel to the longer side of the manganese steel base plate bracket (1), and the length of the first adjustment groove (11) is not less than the maximum adjustment distance required by the long manganese steel strip (2).
6. The manganese steel bottom plate clamping mechanism with adjustable opening for a fabric bag opening machine according to claim 3, characterized in that: The sliding plate (31) and the short manganese steel strip (3) are integrally formed and fixedly connected, and the width of the sliding plate (31) is adapted to the width of the first groove (12).