Bag opening limiting piece capable of preventing cloth from displacing

Abstract

The utility model relates to the technical field of sewing equipment, and discloses a cloth displacement prevention bag opening limiting piece which comprises a pressing piece, a fixed cutter frame, a fixed cutter blade and a cloth bag displacement prevention limiting piece body. The cloth bag opening prevention displacement limiting piece comprises a positioning clamping and fixing assembly, a positioning pressure adjusting assembly for adjusting clamping and fixing pressure according to the thickness of cloth and a controller, positioning clamping and fixing grooves are sequentially formed in the tops of the two sides of the fixed cutter frame in a staggered mode, the fixed blade is installed in the fixed cutter frame, and a bag opening groove is formed in the fixed blade in a linear mode. Bolt fixing grooves connected with the output end of an external bag opening air cylinder are formed in the top of the periphery of the fixed cutter frame, the pressing piece is located at the top of the cloth bag opening operation table under the fixed cutter blade, the pressing piece is a rectangular structure frame, and the positioning pressure adjusting assembly can adjust clamping positioning pressure according to the thickness of cloth. The bag opening limiting piece is simple in structure, convenient to operate and capable of effectively preventing cloth from displacing, and the requirements of modern textile production for the efficient and accurate bag opening process are met.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, specifically to a fabric displacement prevention and bag opening limiter. Background Technology

[0002] In the manufacturing process of textiles such as clothing and bags, fabric opening is a crucial and common step. Traditional fabric opening processes typically rely on operators manually holding the fabric in place and performing cutting and sewing. However, this method presents several problems in actual production. Due to the soft texture and smooth surface of the fabric, it is highly susceptible to displacement during the opening process, leading to deviations in the position and size of the opening, thus affecting the appearance and quality of the finished product.

[0003] To address fabric displacement issues, some manufacturers employ clamps to secure the fabric, preventing it from loosening or shifting during the bag-opening process. However, existing fixed blades still present several problems in practical applications. Firstly, different types of fabrics vary significantly in material and thickness. Traditional fixed blades, with their fixed strength, struggle to adapt to diverse fabric types. Excessive strength can damage thin fabrics, affecting finished product quality, while insufficient strength fails to effectively secure thick fabrics, leading to displacement during bag opening and reducing production efficiency and product yield. Secondly, fabric surfaces often exhibit irregular textures or wrinkles. Traditional clamping plates, relying solely on planar contact, struggle to achieve a stable clamping effect. Even slight slippage of the fabric during bag-opening machine operation can cause deviations in opening position and size, failing to meet the stringent precision requirements of high-end textile production. Utility Model Content

[0004] The purpose of this utility model is to provide a fabric displacement prevention and bag opening limiter to solve the problems mentioned in the background art, such as the easy displacement of fabric during bag opening, the fixed strength of existing clamps, and the unstable clamping of textured and wrinkled fabrics by traditional anti-displacement clamps, which leads to bag opening deviation and cannot meet the needs of high-end production.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fabric displacement prevention and bag opening limiting component includes a pressure plate, a fixed blade frame, a fixed blade, and a fabric displacement prevention and bag opening limiting component. The fabric displacement prevention and bag opening limiting component includes a positioning clamping assembly, a positioning pressure adjusting assembly for adjusting the clamping positioning pressure according to the fabric thickness, and a controller. The fixed blade frame has positioning clamping grooves staggered on both sides of its top. The fixed blade is installed inside the fixed blade frame, and the fixed blade has a bag opening groove in a straight line inside. The top of the fixed blade frame has bolt fixing grooves connected to the output end of an external bag opening cylinder. The pressure plate is located on the top of the fabric bag opening operating table directly below the fixed blade. The pressure plate is a rectangular frame structure. The positioning pressure adjusting assembly can adjust the clamping positioning pressure according to the fabric thickness.

[0007] Preferably, the positioning and clamping assembly includes positioning magnets, which are uniformly embedded in each positioning and clamping groove, and the positioning magnets are detachable.

[0008] Preferably, the positioning pressure adjustment component includes a silicone layer, micro airbags, an air pump, and a pressure sensor that match the tablet structure. The silicone layer is adhered to the top of the tablet, and the micro airbags are evenly embedded and distributed inside the silicone layer. Multiple micro airbags are sequentially connected through each other. The air pump is installed on the outer wall of one side of the tablet, and the air pump inlet / outlet is connected to the air inlet and outlet of the micro airbag, respectively.

[0009] Preferably, the pressure sensor is installed at the bottom of one end of the fixed blade frame, and the pressure detection end of the pressure sensor is in movable contact with the silicone layer.

[0010] Preferably, the pressure sensor and the air pump are connected to the controller via wires, and the controller is installed inside the control cabinet of the fabric bag opening machine.

[0011] Preferably, the fixed blade frame, fixed blade, and pressure plate are all made of manganese steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application presents a simple, easy-to-operate, and effective fabric displacement prevention bag opening limiting component, meeting the demands of modern textile production for efficient and precise bag opening processes. By setting a positioning magnet, the fixed blade on the fixed blade frame is clamped and limited to the pressure plate at its bottom, preventing the fabric from loosening or shifting during equipment operation. The detachable positioning magnet allows for flexible adjustment of the magnetic attraction strength based on the fabric's material, thickness, and other characteristics. For thin fabrics, the magnetic attraction strength can be reduced to avoid damaging the fabric; for thick fabrics, the magnetic attraction can be strengthened to ensure stability.

[0014] 2. The silicone layer, micro airbag, air pump, and pressure sensor in the positioning pressure adjustment component work together. The pressure sensor monitors the pressure on the fabric in real time and sends a feedback signal to the controller based on the fabric thickness. The controller then adjusts the air pump to inflate and deflate the micro airbag, so that the silicone layer adaptively adheres to the fabric surface. Whether the fabric is flat or has irregular textures or wrinkles, it can form a stable and tight clamping effect, effectively preventing the fabric from shifting during the bag opening process and greatly improving the positional accuracy and dimensional accuracy of the bag opening.

[0015] 3. The detachable positioning magnet and adjustable pressure positioning adjustment component enable this limiting component to adapt to different types of fabrics. During the production process, there is no need to change the main structure of the equipment. Different magnetic attraction strength and pressure adjustment modes can be switched through simple operation to meet the bag opening needs of various fabrics such as silk, denim, and cotton. This significantly improves the versatility of the bag opening equipment and reduces the cost for enterprises to change equipment due to the production of different products.

[0016] 4. The connection between the controller and pressure sensors and air pump enables automated and intelligent pressure regulation. The system can automatically sense the fabric characteristics and adjust the clamping force, reducing manual intervention and lowering the labor intensity and operational difficulty for operators. At the same time, the intelligent control method also reduces fabric damage and defective products caused by human error, improving the stability and reliability of the production process.

[0017] 5. The fixed blade frame, fixed blade, and pressing plate are all made of manganese steel. Manganese steel has excellent properties such as high strength, wear resistance, and corrosion resistance. It can withstand long-term use and frequent opening and closing operations, effectively reducing the wear and damage of parts, extending the service life of the limiting parts and the entire bag opening equipment, reducing equipment maintenance costs and downtime, and ensuring the continuity and efficiency of production. Attached Figure Description

[0018] Figure 1 This is an overall isometric view of the present invention;

[0019] Figure 2 This is a schematic diagram of the fixed blade frame and fixed blade structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the silicone layer of this utility model;

[0021] Figure 4 This is a schematic diagram of the distribution of micro-airbags inside the silicone layer of this utility model;

[0022] Figure 5 This is a connection block diagram of the positioning pressure regulation and control device of this utility model.

[0023] In the diagram: 1. Pressing plate; 2. Fixed blade frame; 21. Positioning and clamping groove; 22. Bolt fixing groove; 3. Fixed blade; 31. Bag opening groove; 4. Anti-fabric bag opening displacement limiting component; 41. Positioning magnet; 42. Silicone layer; 43. Miniature airbag; 44. Air pump; 45. Pressure sensor. Detailed Implementation

[0024] 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.

[0025] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0026] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0027] Please see the appendix Figure 1-5 As shown, a fabric displacement prevention and bag opening limiting component includes a pressure plate 1, a fixed blade frame 2, a fixed blade 3, and a fabric displacement prevention and bag opening limiting component 4. The fixed blade frame 2, fixed blade 3, and pressure plate 1 are all made of high-strength, wear-resistant manganese steel to ensure that the components are not easily damaged during frequent use, extending the overall service life of the equipment. Positioning and clamping grooves 21 are staggered on both sides of the top of the fixed blade frame 2. Bolt fixing grooves 22 are formed around the top of the fixed blade frame 2 to connect with the output end of the external bag opening cylinder, facilitating power transmission and equipment installation. The fixed blade 3 is installed inside the fixed blade frame 2, and an opening groove 31 is formed inside the fixed blade 3. The straight-line opening slot 31 provides a precise path for opening the fabric bag. The pressure plate 1 is located on the top of the fabric opening operating table directly below the fixed blade 3. The pressure plate 1 is a rectangular frame structure, placed on the top of the operating table directly below the fixed blade 3, and works with the fixed blade 3 to clamp the fabric. The fabric opening displacement limiting component 4 includes a positioning clamping component, a positioning pressure adjusting component that adjusts the clamping positioning pressure according to the fabric thickness, and a controller. The positioning pressure adjusting component can adjust the clamping positioning pressure according to the fabric thickness. The positioning clamping component includes a positioning magnet 41, which is evenly embedded in each positioning clamping slot 21. The positioning magnet 41 is detachable.

[0028] The detachable positioning magnet 41 of the positioning clamping component is evenly embedded in the positioning clamping groove 21. By selecting magnets with different magnetic strengths or adjusting the number of magnets, it can be flexibly adapted to various fabrics. For thin fabrics, low magnetic magnets are selected to avoid damage. For thick fabrics, the magnetic force is enhanced to ensure stable adsorption, prevent the fabric from shifting when opening the bag, and improve the accuracy of opening the bag.

[0029] The removable positioning magnet 41 in the positioning clamping assembly of this application allows for adjustment of the magnetic force as needed. This not only avoids damage to thin fabrics but also securely clamps thick fabrics, effectively preventing fabric displacement and improving bag opening accuracy and production qualification rate.

[0030] Please see the appendix Figure 1 , 3 As shown in Figures 4 and 5, the positioning pressure adjustment assembly includes a silicone layer 42, a micro-airbag 43, an air pump 44, and a pressure sensor 45 that match the structure of the pressure plate 1. Through the coordinated operation of the silicone layer 42, the micro-airbag 43, the air pump 44, the pressure sensor 45, and the controller, the positioning pressure adjustment assembly achieves adaptive clamping of the fabric. The silicone layer 42 is adhered to the top of the pressure plate 1. The silicone layer 42 is made of food-grade liquid silicone, which has high elasticity and good flexibility. Under the action of the micro-airbag 43, it can tightly adhere to the irregular surface of the fabric. At the same time, its chemical properties are stable, non-toxic, and odorless, and it will not contaminate the fabric, making it particularly suitable for processing materials that come into close contact with the human body. Even with prolonged contact with the fabric, the clothing fabric will not fade or bleed, ensuring the safety and quality of the finished fabric. The micro airbags 43 are evenly embedded inside the silicone layer 42, and multiple micro airbags 43 are connected in sequence. The air pump 44 is installed on the outer wall of one side of the pressure plate 1. The air inlet / outlet of the air pump 44 is connected to the air inlet and air outlet of the micro airbags 43, respectively. The pressure sensor 45 is installed at the bottom of one end of the fixed blade frame 2. The pressure detection end of the pressure sensor 45 is in contact with the silicone layer 42. The pressure sensor 45 and the air pump 44 are connected to the controller through wires. The controller is installed inside the control cabinet of the fabric bag opening machine.

[0031] When the fabric is placed between the pressure plate 1 and the fixed blade 3 to prepare for opening the bag, the pressure sensor 45, as a sensing element, is installed at the bottom of one end of the fixed blade frame 2 and the detection end abuts against the silicone layer 42. It can monitor the pressure on the surface of the fabric in real time. The pressure data is transmitted to the controller located in the control cabinet of the fabric bag opening machine through the wire. The controller determines whether the current pressure meets the ideal clamping state based on the preset algorithm and fabric parameters.

[0032] If the fabric is detected to be too thick, the controller will send a command to the air pump 44. The air pump 44 is installed on the outer wall of one side of the pressure plate 1. Its air inlet / outlet is connected to the micro airbags 43 that are uniformly embedded in the silicone layer 42 and are interconnected. At this time, the air pump 44 starts and inflates the micro airbags 43. After the micro airbags 43 expand, they push the silicone layer 42 to deform, so that it fits tightly against the irregular texture or wrinkles on the surface of the fabric. This flexible adaptive bonding method, compared with the traditional flat pressure plate, greatly enhances the friction and wrapping of the fabric, effectively prevents the fabric from sliding due to uneven force during the opening process, significantly improves the accuracy of opening the bag, and reduces the defect rate. It is especially suitable for processing fabrics with uneven surfaces.

[0033] Conversely, when the fabric is detected to be thin, the controller controls the air pump 44 to deflate the micro-airbag 43. After the micro-airbag 43 contracts, the silicone layer 42 reduces the pressure on the fabric, preventing indentations and damage to the fabric surface due to excessive clamping force, thus protecting the integrity of the thin fabric and ensuring the quality of the finished product. Simultaneously, this component, through real-time monitoring and dynamic adjustment, achieves intelligent and precise clamping of fabrics of different thicknesses, eliminating the need for frequent manual adjustments, reducing the labor intensity of operators, and improving production efficiency. Furthermore, the flexible design of the silicone layer 42 and the micro-airbag 43 reduces rigid friction between components, extending the service life of the entire positioning pressure adjustment component and reducing equipment maintenance costs.

[0034] During operation, the limiting component is connected to the output end of the external bag-opening cylinder via the bolt fixing slots 22 around the top of the fixed blade frame 2, completing the equipment installation. Based on the type of fabric to be processed, a positioning magnet 41 with appropriate magnetic strength is selected and embedded into the positioning clamping slots 21 on both sides of the fixed blade frame 2. The fabric is placed between the pressure plate 1 and the fixed blade 3. With the cylinder moving the fixed blade frame 2 downwards, the positioning magnet 41 generates a suction force. At this point, the fixed blade frame 2 and the pressure plate 1 initially fix the fabric, preventing it from moving arbitrarily during subsequent operations. The pressure sensor 45 monitors the pressure on the fabric surface in real time and transmits the data to the controller in the control cabinet for control. Based on a preset algorithm and fabric parameters, the device determines whether the current pressure meets the ideal clamping state. If the fabric is thick, the controller instructs the air pump 44 to inflate the micro airbags 43 inside the silicone layer 42. The micro airbags 43 expand and push the silicone layer 42 to deform, tightly adhering to the irregular surface of the fabric. If the fabric is thin, the controller controls the air pump 44 to deflate, reducing the pressure on the silicone layer 42 and preventing damage to the fabric. After the fabric is stably clamped, the bag opener performs a precise bag opening operation on the fabric according to the straight bag opening groove 31 inside the fixed blade 3. During this process, the positioning and clamping components and the positioning pressure adjustment components work continuously to ensure that the fabric does not shift.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fabric displacement prevention and bag opening limiting component, comprising a pressure plate (1), a fixed blade frame (2), a fixed blade (3), and a fabric displacement prevention and bag opening limiting component (4), characterized in that: The fabric opening displacement limiting component (4) includes a positioning clamping component, a positioning pressure adjusting component for adjusting the clamping positioning pressure according to the fabric thickness, and a controller. The top of both sides of the fixed blade frame (2) are staggered with positioning clamping grooves (21). The fixed blade (3) is installed inside the fixed blade frame (2). The fixed blade (3) has a bag opening groove (31) in a straight line inside. The top of the fixed blade frame (2) is provided with bolt fixing grooves (22) that are connected to the output end of the external bag opening cylinder. The pressure plate (1) is located on the top of the fabric bag opening operating table directly below the fixed blade (3). The pressure plate (1) is a rectangular frame. The positioning pressure adjusting component can adjust the clamping positioning pressure according to the fabric thickness.

2. The anti-fabric displacement bag opening limiting component according to claim 1, characterized in that: The positioning clamping assembly includes a positioning magnet (41), which is uniformly embedded in each of the positioning clamping slots (21) and is detachable.

3. The anti-fabric displacement bag opening limiting component according to claim 1, characterized in that: The positioning pressure adjustment assembly includes a silicone layer (42) that matches the structure of the pressure plate (1), a micro airbag (43), an air pump (44), and a pressure sensor (45). The silicone layer (42) is attached to the top of the pressure plate (1). The micro airbags (43) are evenly embedded and distributed inside the silicone layer (42). Multiple micro airbags (43) are sequentially connected. The air pump (44) is installed on the outer wall of one side of the pressure plate (1). The air inlet / outlet of the air pump (44) is connected to the air inlet and air outlet of the micro airbag (43), respectively.

4. The anti-fabric displacement bag opening limiting component according to claim 3, characterized in that: The pressure sensor (45) is installed at the bottom of one end of the fixed blade frame (2), and the pressure detection end of the pressure sensor (45) is in contact with the silicone layer (42).

5. The anti-fabric displacement bag opening limiting component according to claim 4, characterized in that: The pressure sensor (45) and the air pump (44) are connected to the controller via wires. The controller is installed inside the control cabinet of the fabric bag opening machine.

6. The anti-fabric displacement bag opening limiting component according to claim 4, characterized in that: The fixed blade frame (2), fixed blade (3) and pressing plate (1) are all made of manganese steel.

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