Industrial sewing machine with automatic feeding mechanism

Abstract

This utility model discloses an industrial sewing machine with an automatic feeding mechanism. Relating to the field of industrial sewing machine technology, the machine includes a sewing machine body and a feeding mechanism. The feeding mechanism includes a mounting component disposed on one side of the sewing machine body; a feeding roller comprising a driving roller and a driven roller, which are vertically distributed; and an adjusting component mounted on the mounting component and connected to the driven roller on the feeding roller. This industrial sewing machine with an automatic feeding mechanism achieves dynamic self-adaptation of the driven roller pressure through the movable plate-slider-spring structure of the adjusting component: when feeding thick fabric, the fabric supports the driven roller, causing the movable plate to move upward, increasing the spring compression and ensuring stable friction; when feeding thin fabric, the spring force gently presses the fabric, avoiding indentations or damage. Combined with the vertically distributed compression of the driving and driven rollers, this significantly improves sewing quality.

Description

Technical Field

[0001] This utility model relates to the field of industrial sewing machine technology, specifically an industrial sewing machine with an automatic feeding mechanism. Background Technology

[0002] There are many types of industrial sewing machines on the market today, which can basically meet people's needs. However, there are still some shortcomings. When sewing large areas and long fabrics (such as bed sheets), the operator needs to push the fabric along the needle of the machine head and let the machine sew the fabric. The operation is relatively slow and inconvenient. In addition, existing sewing machines are difficult to push and feed materials of different thicknesses, which reduces the processing range of the sewing machine.

[0003] The utility model patent with authorization announcement number CN215800308U discloses an industrial sewing machine with an automatic feeding mechanism, including a bracket and an industrial sewing machine body. The industrial sewing machine body is installed on one side of the top of the bracket. A vertical plate is fixed to the top of the bracket, and the vertical plate is spaced apart from one side of the industrial sewing machine body. An electric telescopic rod is installed on the outer wall of one side of the vertical plate. A guide rail is installed on the outer wall of the vertical plate, and two sets of guide rails are provided. A slide table is slidably installed on the surface of the guide rail, and a fixing frame is fixed on the outer wall of one side of the slide table. The top of the fixing frame is fixedly connected to the bottom end of the piston rod of the electric telescopic rod. A limit frame is fixed on one side of the bracket surface.

[0004] As shown in the above-mentioned utility model, the existing feeding mechanism not only expands the working range of the sewing machine and eliminates the need for manual feeding by the operator, thus improving the sewing efficiency of the sewing machine, but also reduces fabric wrinkles during sewing and improves the sewing quality of industrial sewing machines. However, the existing feeding mechanism uses an electric telescopic rod to press down the limiting roller, which may cause excessive pressure on thin fabrics, leading to damage, or insufficient pressure on thick fabrics, causing slippage. Moreover, the adjustment process requires stopping the machine for manual calibration, which is time-consuming and labor-intensive, making it difficult to meet the continuous sewing needs of diverse fabrics. In addition, the existing device has a large gap in the driven roller support structure, which is prone to vibration during high-speed feeding, resulting in uneven fabric transport. At the same time, the pressure adjustment component is integrated into a closed cavity, requiring the disassembly of multiple components for replacement, resulting in long maintenance time and affecting the efficiency of the production line. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an industrial sewing machine with an automatic feeding mechanism, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial sewing machine with an automatic feeding mechanism, comprising a sewing machine body and a feeding mechanism, characterized in that the feeding mechanism includes:

[0007] The mounting component is located on one side of the sewing machine body, and a drive mechanism and a feeding mechanism are mounted on the mounting component;

[0008] The feeding roller includes a driving roller and a driven roller, which are distributed vertically. The driving roller is connected to the output end of the drive mechanism. The driving roller and the driven roller work together to convey fabric.

[0009] An adjusting component is mounted on a mounting component and is connected to a driven roller on a feeding roller, used to adjust the pressure of the driven roller on the fabric.

[0010] Preferably, the mounting component includes a mounting frame, a motor is fixed to the outside of one end of the vertical plate of the mounting frame, a feeding roller is provided between the two end vertical plates of the mounting frame, and an adjusting component is provided on both vertical plates of the mounting frame.

[0011] Preferably, the lower ends of the vertical plates at both ends of the mounting frame are provided with through slots, and the lower outer side of the vertical plate at the other end of the mounting frame is provided with a bearing plate. One end of the drive roller passes through the through slot via a rotating shaft and is connected to the output end of the motor. The other end of the drive roller passes through the through slot via a rotating shaft and is connected to the bearing in the bearing plate.

[0012] Preferably, the upper ends of the vertical plates at both ends of the mounting bracket are provided with slots, the inner walls of the slots on both sides are provided with sliding grooves, and the upper outer sides of the vertical plates are provided with slots.

[0013] Preferably, the adjusting component includes a movable plate disposed in the slot, a bearing mounted on the movable plate, the bearing being connected to the driven roller via a connecting shaft, and sliders fixed at both ends of the movable plate, the sliders being located within the slot.

[0014] Preferably, a top plate is provided above the movable plate, the top plate is located at the top of the mounting frame vertical plate, and limit plates are fixed at both ends of one side of the top plate. The limit plates are adapted to the slots. A connecting column is fixed in the middle of the side of the top plate and the movable plate that are close to each other. A second spring is provided between the two connecting columns, and the two ends of the second spring are respectively sleeved on the outside of the two connecting columns.

[0015] Beneficial effects

[0016] This invention provides an industrial sewing machine with an automatic feeding mechanism. Compared with the prior art, it has the following advantages:

[0017] 1. This industrial sewing machine with an automatic feeding mechanism achieves dynamic self-adaptation of the driven roller pressure through the movable plate-slider-spring structure of the adjusting component: when conveying thick fabric, the fabric supports the driven roller, causing the movable plate to move upward and the spring compression to increase, ensuring stable friction. When conveying thin fabric, the spring force gently presses the fabric to avoid indentations or damage. Combined with the upper and lower distributed squeezing of the active roller and the driven roller, the sewing quality is significantly improved.

[0018] 2. This industrial sewing machine with an automatic feeding mechanism supports quick spring replacement through a top plate-limiting plate structure. Without disassembling the entire machine, simply move the top plate to separate the limiting plate to replace the second spring with different elasticity. It is suitable for fabric types from denim to silk. At the same time, the movable plate is limited by a sliding groove and connected to the driven roller with a bearing, which improves the feeding speed and extends the maintenance cycle, greatly reducing downtime losses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model.

[0021] Figure 3 This is a schematic diagram of the mounting component structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the adjusting component structure of this utility model.

[0023] In the diagram: 1. Sewing machine body; 2. Feeding mechanism; 3. Mounting component; 31. Mounting frame; 32. Motor; 33. Through groove; 34. Bearing plate; 35. Guide groove; 36. Guide bolt; 37. First spring; 38. Empty groove; 39. Slide groove; 310. Slot; 4. Feeding roller; 5. Adjusting component; 51. Movable plate; 52. Slider; 53. Connecting shaft; 54. Top plate; 55. Limiting plate; 56. Connecting column; 57. Second spring. 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] Please see Figure 1-4 This utility model provides two technical solutions:

[0026] First embodiment: An industrial sewing machine with an automatic feeding mechanism, including a sewing machine body 1, a feeding mechanism 2, a mounting component 3, a feeding roller 4, and an adjusting component 5.

[0027] Specifically, the mounting component 3 is located on one side of the sewing machine body 1. The mounting component 3 is equipped with a drive mechanism and a feeding mechanism 2. The mounting component 3 includes a mounting frame 31. A motor 32 is fixed to the outside of one end of the vertical plate of the mounting frame 31. A feeding roller 4 is provided between the two ends of the vertical plates of the mounting frame 31. An adjusting component 5 is provided on both ends of the vertical plates of the mounting frame 31. A through groove 33 is provided at the lower end of both ends of the vertical plates of the mounting frame 31. A bearing plate 34 is provided at the lower outer end of the other end of the vertical plate of the mounting frame 31. One end of the drive roller passes through the through groove 33 through a rotating shaft and is connected to the output end of the motor 32. The other end of the drive roller passes through the through groove 33 through a rotating shaft and is connected to the bearing in the bearing plate 34. A slot 38 is provided at the upper end of both ends of the vertical plates of the mounting frame 31. A sliding groove 39 is provided on the inner walls of both sides of the slot 38. A slot 310 is provided on both sides of the upper outer end of the vertical plate.

[0028] More specifically, the feeding roller 4 includes a driving roller and a driven roller, which are distributed vertically. The driving roller is connected to the output end of the drive mechanism. The driving roller and the driven roller work together to convey the fabric. The driving roller and the driven roller work together to squeeze the fabric. The driving roller is driven to rotate by the motor 32, thereby driving the fabric to be conveyed. The adjusting component 5 is installed on the mounting component 3. The adjusting component 5 is connected to the driven roller on the feeding roller 4 and is used to adjust the pressure of the driven roller on the fabric.

[0029] The second embodiment differs from the first embodiment in that: the adjusting member 5 includes a movable plate 51 disposed within the slot 38, a bearing is mounted on the movable plate 51, the bearing is connected to the driven roller via a connecting shaft 53, sliders 52 are fixed at both ends of the movable plate 51, the sliders 52 are located within the slot 39, limiting the movable plate 51 within the slot 38, a top plate 54 is disposed above the movable plate 51, the top plate 54 is located at the top of the vertical plate of the mounting frame 31, and limit plates 55 are fixed at both ends of one side of the top plate 54. The limiting plate 55 is adapted to the slot 310 and can limit the top plate 54 to the top of the vertical plate. By moving the top plate 54, the limiting plate 55 can be separated from the slot 310, and the top plate 54 can be quickly disassembled. The top plate 54 and the movable plate 51 are both fixed with connecting posts 56 in the middle of their adjacent sides. A second spring 57 is provided between the two connecting posts 56. The two ends of the second spring 57 are respectively sleeved on the outside of the two connecting posts 56. The pressure of the driven roller on the fabric can be adjusted by replacing the second spring 57 with different elasticity.

[0030] During operation, the fabric to be sewn is placed between the drive roller and the driven roller. The driven roller naturally presses the fabric under the action of a spring. Then, the motor 32 is started. After the motor 32 starts, it drives the drive roller to rotate through the shaft. The drive roller moves the fabric forward through friction. The driven roller rotates synchronously and presses the fabric, ensuring that the fabric is fed flat and avoiding slippage or wrinkles that may affect the sewing quality. When the fabric is fed to the area below the needle, the sewing machine body 1 works synchronously, and the needle pierces the fabric to complete the sewing. The feed roller 4 continues to feed until the sewing is completed. When feeding thick fabric, the fabric supports the driven roller, and the movable plate 51 moves upward against the spring pressure, increasing the spring compression and automatically increasing the pressure of the driven roller to ensure stable pressing force. When feeding thin fabric, the spring force causes the driven roller to lightly press the fabric, avoiding excessive pressure that could damage the fabric. The limiting plate 55 of the top plate 54 can be quickly disassembled for easy replacement of springs with different elastic coefficients. By replacing springs with different elastic coefficients, the pressure of the driven roller can be precisely adjusted.

[0031] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0032] 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.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial sewing machine with an automatic feeding mechanism, comprising a sewing machine body and a feeding mechanism, characterized in that, The feeding mechanism includes: The mounting component is located on one side of the sewing machine body, and a drive mechanism and a feeding mechanism are mounted on the mounting component; The feeding roller includes a driving roller and a driven roller, which are distributed vertically. The driving roller is connected to the output end of the drive mechanism. The driving roller and the driven roller work together to convey fabric. An adjusting component is mounted on a mounting component and is connected to a driven roller on a feeding roller, used to adjust the pressure of the driven roller on the fabric.

2. An industrial sewing machine with an automatic feeding mechanism according to claim 1, characterized in that: The mounting component includes a mounting frame, a motor is fixed to the outside of one end of the vertical plate of the mounting frame, a feeding roller is provided between the two end vertical plates of the mounting frame, and an adjusting component is provided on both vertical plates of the mounting frame.

3. An industrial sewing machine with an automatic feeding mechanism according to claim 2, characterized in that: Both ends of the mounting frame have through slots at their lower ends. The other end of the mounting frame has a bearing plate at its lower outer side. One end of the drive roller passes through the through slot via a rotating shaft and is connected to the output end of the motor. The other end of the drive roller passes through the through slot via a rotating shaft and is connected to the bearing in the bearing plate.

4. An industrial sewing machine with an automatic feeding mechanism according to claim 3, characterized in that: The upper ends of the vertical plates at both ends of the mounting bracket are provided with slots, and the inner walls on both sides of the slots are provided with sliding grooves. The upper outer ends of the vertical plates are provided with slots.

5. An industrial sewing machine with an automatic feeding mechanism according to claim 1, characterized in that: The adjusting component includes a movable plate disposed in a slot, a bearing mounted on the movable plate, the bearing being connected to a driven roller via a connecting shaft, and sliders fixed at both ends of the movable plate, the sliders being located within a slot.

6. An industrial sewing machine with an automatic feeding mechanism according to claim 5, characterized in that: A top plate is provided above the movable plate. The top plate is located at the top of the mounting frame vertical plate. Limiting plates are fixed at both ends of one side of the top plate. The limiting plates are adapted to the slots. Connecting columns are fixed in the middle of the sides of the top plate and the movable plate that are close to each other. A second spring is provided between the two connecting columns. The two ends of the second spring are respectively sleeved on the outside of the two connecting columns.

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