Edge folding device of double-needle sewing machine

Abstract

The utility model relates to the technical field of double-needle sewing machines, and discloses an edge folding device of a double-needle sewing machine, which comprises a double-needle sewing machine main body, a mounting seat, a mounting plate, a steering limiting component, a clamping limiting component, an edge folding piece and a connecting component, the mounting seat is fixedly mounted on an operating table of a double-needle sewing machine body in an embedded mode, the mounting plate is detachably and rotatably mounted in the middle of the top side of the mounting seat, two clamping grooves are formed in the mounting plate, and the clamping limiting assembly is arranged in the two clamping grooves. The connecting assembly is arranged on the edge folding piece and connected with the clamping limiting assembly, a mounting groove is formed in the mounting plate, and a plurality of limiting grooves are formed in the mounting base with the midpoint of the mounting plate as the center. The edge folding device has the following advantages and effects that the edge folding efficiency is high, the operation flexibility is good, the orientation can be conveniently and rapidly adjusted, and rapid disassembly and assembly can be conveniently and rapidly carried out; meanwhile, the edge folding quality can be ensured, and the maintenance and replacement process can be simplified.

Description

Technical Field

[0001] This utility model relates to the field of double-needle sewing machine technology, and in particular to a folding device for a double-needle sewing machine. Background Technology

[0002] In many industries involving fabric processing, such as garment manufacturing and home textile production, the hemming operation of double-needle sewing machines is a crucial process. However, with the market's increasing demands for product quality and the continuous expansion of production scale, traditional double-needle sewing machine hemming devices have gradually revealed numerous problems.

[0003] Firstly, regarding folding efficiency, traditional devices are often poorly designed, resulting in a cumbersome and time-consuming folding process. For example, their internal structure may have an unreasonable layout, requiring the fabric to traverse complex paths during folding, increasing operation time and severely impacting production efficiency, failing to meet the speed requirements of large-scale production. Secondly, in terms of operational flexibility, traditional double-needle sewing machine folding devices lack effective adjustment mechanisms. When facing different folding needs, such as folding tasks with different shapes and angles, a significant amount of time and effort is often required to adjust the equipment or reset process parameters. Due to the lack of convenient steering adjustment components, the orientation of the folding component is fixed, often requiring disassembly for orientation adjustment and then reinstallation before use. This makes it difficult to quickly adapt to diverse production requirements, greatly limiting the equipment's versatility. Furthermore, folding quality has always been a key concern in the industry. In traditional folding devices, the stability and accuracy of the fabric during the folding process are poor. On the one hand, the lack of an effective guiding structure makes... Fabric is prone to shifting and wrinkling during the folding process, severely affecting the accuracy and quality of the folding. On the other hand, even with some guiding components, the design is not refined enough. For example, the connection of the inner wall of the guide cylinder is not properly treated, which can cause the fabric to be easily obstructed and jammed when passing through. This makes it impossible to ensure that the fabric strips for folding pass through smoothly and stably, thus reducing the folding quality. Finally, in terms of the ease of maintenance and operation, the folding device of the traditional double-needle sewing machine has obvious shortcomings. Its folding parts are usually fixed and do not take into account the need for cleaning and replacement during long-term use. When the folding parts are worn, malfunction, or need cleaning, the complicated disassembly and installation process not only consumes a lot of time, but also requires professional technicians to operate. At the same time, due to the lack of convenient limit and locking design, operators need to undergo a long period of training to master the maintenance and replacement skills, increasing labor costs and the risk of production delays.

[0004] In conclusion, in order to overcome these shortcomings of traditional double-needle sewing machine folding devices, there is an urgent need for a new folding device to improve folding efficiency, enhance operational flexibility, improve folding quality, and simplify maintenance and replacement processes.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a folding device for a double-needle sewing machine, which has the advantages of high folding efficiency, good operational flexibility, convenient and quick orientation adjustment, and convenient quick assembly and disassembly. At the same time, it can ensure folding quality and simplify maintenance and replacement processes.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a folding device for a double-needle sewing machine, comprising a double-needle sewing machine body, a mounting base, a mounting plate, a steering limit component, a snap-fit ​​limit component, a folding component, and a connecting component;

[0008] The mounting base is embedded and fixedly installed on the operating table of the double-needle sewing machine body. The mounting plate is detachably and rotatably installed at the center of the top side of the mounting base. The mounting plate has two slots. The snap-fit ​​limiting component is set in the two slots. The connecting component is set on the folded edge and connected to the snap-fit ​​limiting component. The mounting plate has a mounting groove. The mounting base has multiple limiting grooves centered on the midpoint of the mounting plate. The turning limiting component is set in the mounting groove and adapted to the multiple limiting grooves.

[0009] The folding component includes a polygonal guide cylinder and a guide plate, with the guide plate fixedly connected to one inner wall of the guide cylinder.

[0010] A further feature of this invention is that the snap-fit ​​limiting assembly includes two snap-fit ​​blocks, multiple guide rods, multiple springs, and two fixing bars. Two fixing bars are fixedly installed at the bottom of the guide cylinder. Multiple guide rods arranged in a parallel manner are fixedly installed on the side of the two fixing bars that are close to each other. Two snap-fit ​​blocks arranged symmetrically and snap-fitted into corresponding slots are slidably installed on the multiple guide rods. Multiple springs that are movably sleeved on the outside of the corresponding guide rods are fixedly installed between the fixing bars and snap-fit ​​blocks on the same side.

[0011] By adopting the above technical solution, it can be snapped and fixed on the mounting plate as needed, and it is also convenient to disassemble quickly.

[0012] A further feature of this invention is that both the card block and the card slot are L-shaped.

[0013] By adopting the above technical solution, the stability after the snap-fit ​​is completed can be guaranteed.

[0014] A further feature of this invention is that the connecting assembly includes two sliding sleeves, two sliding sleeves are slidably installed on the outer side of the guide cylinder, the two sliding sleeves are respectively fixedly connected to the corresponding locking blocks, and both sliding sleeves are located between the two fixing strips.

[0015] By adopting the above technical solution, the guide cylinder and the locking block can be connected, and the locking block can be easily operated to slide along the guide rod.

[0016] A further feature of this invention is that the steering limiting assembly includes a first toothed plate, a second toothed plate, a rotating pin, a gear, and a pressing block. The pressing block is slidably mounted on the inner wall of the mounting groove, and the second toothed plate is fixedly mounted on the bottom side of the pressing block. The first toothed plate, which is parallel to the second toothed plate, is slidably mounted on the bottom inner wall of the mounting groove. The bottom end of the first toothed plate is inserted into the corresponding limiting groove. A rotating pin is rotatably mounted on the inner wall of the mounting groove, and a gear is fixedly sleeved on the rotating pin. Both the first toothed plate and the second toothed plate mesh with the gear.

[0017] By adopting the above technical solution, it is possible to control the toothed plate to disengage from the limiting groove when the pressing block moves downward, thereby releasing the limiting state between the mounting plate and the mounting base, and making it easier to control the mounting plate to drive the folded edge to turn.

[0018] A further feature of this invention is that the steering limit assembly also includes multiple springs, and multiple springs are fixedly installed on the bottom side of the pressing block, with the bottom ends of the multiple springs fixedly installed on the bottom inner wall of the mounting groove.

[0019] By adopting the above technical solution, it is possible to control the pressing block to pop up and reset when no operation is performed on the pressing block, thereby achieving an automatic limit state between the mounting plate and the mounting base.

[0020] A further feature of this invention is that both the cross-section of the pressing block and the cross-section of the mounting groove are convex.

[0021] By adopting the above technical solution, it is possible to prevent the pressing block from falling out of the mounting groove.

[0022] A further feature of this invention is that a bolt is rotatably mounted at the center of the top side of the mounting plate, and the bolt thread is installed on the mounting base.

[0023] By adopting the above technical solution, it is convenient to disassemble and assemble the mounting plate, while not affecting the rotation of the mounting plate.

[0024] A further feature of this invention is that the number of mounting seats is multiple and they are respectively fixedly installed on the operating table of the double-needle sewing machine body.

[0025] By adopting the above technical solution, multiple devices can be used in combination, thereby effectively improving the folding effect.

[0026] A further feature of this invention is that the connection between adjacent inner sidewalls inside the guide cylinder is rounded.

[0027] By adopting the above technical solution, it is possible to ensure that the fabric strips to be folded pass through the guide tube more stably, thereby improving the smoothness of the fabric strips to be folded when passing through the guide tube.

[0028] The beneficial effects of this utility model are:

[0029] 1. Improved the folding efficiency of sewing machines. Due to the reasonable design of the device, the folding process is faster and more convenient.

[0030] 2. Enhanced operational flexibility: The orientation of the folded part can be easily adjusted by setting the steering limit component, thus better adapting to different folding requirements.

[0031] 3. Improved folding quality: The design of the guide cylinder and guide plate ensures the stability and accuracy of the fabric during the folding process. At the same time, the rounded corners at the connection between adjacent inner walls of the guide cylinder ensure that the folded fabric strips pass through the guide cylinder more stably and smoothly.

[0032] 4. The maintenance and replacement process has been simplified and the operation difficulty has been reduced. The detachable design of the mounting plate and the setting of the snap-fit ​​limiting components make it easy and quick to replace or clean the folded parts, reducing the operator's training time. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of a folding device for a double-needle sewing machine proposed in this utility model;

[0035] Figure 2 This is a partial three-dimensional structural diagram of the hemming device of a double-needle sewing machine proposed in this utility model;

[0036] Figure 3 for Figure 2 A partial sectional view of the structure;

[0037] Figure 4This is a schematic diagram of the structure of the connecting component and the snap-fit ​​limiting component proposed in this utility model;

[0038] Figure 5 This is a schematic diagram of the steering limit component proposed in this utility model;

[0039] Figure 6 This is a schematic diagram of the folded edge component proposed in this utility model.

[0040] In the diagram, 1. Double-needle sewing machine body; 2. Mounting base; 3. Mounting plate; 301. Slot; 31. Bolt; 4. Folding part; 41. Fixing strip; 42. Guide rod; 43. Spring 1; 44. Locking block; 45. Sliding sleeve; 5. Pressing block; 51. Tooth plate 1; 52. Tooth plate 2; 53. Gear; 54. Spring 2. Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0042] Reference Figure 1-6A folding device for a double-needle sewing machine includes a double-needle sewing machine body 1, a mounting base 2, a mounting plate 3, and a folding component 4. The mounting base 2 is embedded and fixedly mounted on the operating table of the double-needle sewing machine body 1. The mounting plate 3 is detachably and rotatably mounted on the top side of the mounting base 2 at the center position. The mounting plate 3 has two slots 301. Two fixing strips 41 are fixedly mounted on the bottom of the guide cylinder. Multiple guide rods 42 arranged in a parallel manner are fixedly mounted on the side of the two fixing strips 41 that are close to each other. Two symmetrically arranged locking blocks 44 are slidably mounted on the multiple guide rods 42 and are respectively locked into the corresponding slots 301. Multiple movable blocks are fixedly mounted between the fixing strips 41 and locking blocks 44 on the same side. A spring 43, sleeved on the outer side of the corresponding guide rod 42, can be snapped and fixed onto the mounting plate 3 as needed, and also facilitates quick disassembly. Two sliding sleeves 45 are slidably installed on the outer side of the guide cylinder. The two sliding sleeves 45 are respectively fixedly connected to the corresponding locking blocks 44, and both sliding sleeves 45 are located between the two fixing strips 41, which can connect the guide cylinder and the locking blocks 44, and facilitate the operation of the locking blocks 44 to slide along the guide rod 42. In order to ensure the stability after snapping, the locking blocks 44 and the locking grooves 301 are both L-shaped. The mounting plate 3 has a mounting groove, and the mounting base 2 has multiple limiting grooves centered on the midpoint of the mounting plate 3. The inner sidewall of the mounting groove is slidably installed. A pressing block 5 is provided, and a toothed plate 2 52 is fixedly installed on the bottom side of the pressing block 5. A toothed plate 1 51, parallel to the toothed plate 2 52, is slidably installed on the bottom inner wall of the mounting groove. The bottom end of the toothed plate 1 51 is inserted into the corresponding limiting groove. A rotating pin is rotatably installed on the inner wall of the mounting groove, and a gear 53 is fixedly sleeved on the rotating pin. Both the toothed plate 1 51 and the toothed plate 2 52 mesh with the gear 53, which can control the toothed plate 1 51 to disengage from the limiting groove when the pressing block 5 moves downward, thereby releasing the limiting state between the mounting plate 3 and the mounting base 2, and thus facilitating the control of the mounting plate 3 to drive the folded edge 4 to rotate. In order to prevent the pressing block 5 from falling out of the mounting groove, the cross-section of the pressing block 5 and the mounting base 2 are designed to be more flexible and compliant. The cross-section of the mounting groove is convex. Multiple springs 54 are fixedly installed on the bottom side of the pressing block 5. The bottom ends of the multiple springs 54 are fixedly installed on the bottom inner wall of the mounting groove. When the pressing block 5 is not operated, it can control the pressing block 5 to pop up and achieve the effect of resetting. This enables the automatic limiting state between the mounting plate 3 and the mounting base 2. The folding part 4 includes a polygonal guide cylinder and a guide plate. The guide plate is fixedly connected to one inner wall of the guide cylinder. In order to ensure that the folded cloth strips pass through the guide cylinder more stably and smoothly, the connection between adjacent inner walls of the guide cylinder is rounded. The chamfer angle at the rounded corner is 1 / 3 of the inner height of the guide cylinder.

[0043] Specifically, a bolt 31 is rotatably mounted on the top center of the mounting plate 3. The bolt 31 is threaded onto the mounting base 2, which facilitates the disassembly and assembly of the mounting plate 3 without affecting its rotation.

[0044] Specifically, there are multiple mounting bases 2, which are fixedly installed on the operating table of the main body 1 of the double needle sewing machine, enabling the combined use of multiple of these devices, thereby effectively improving the hemming effect.

[0045] Working principle: First, select the folded part 4 of the required size and shape. Then, control the two sliding sleeves 45 on the folded part 4 to move closer to each other, thereby driving the two locking blocks 44 to move closer to each other. Then, insert the two locking blocks 44 into the corresponding locking slots 301 and release the force applied to the sliding sleeves 45. Under the action of multiple springs 43, the two locking blocks 44 can be stably locked in the locking slots 301. Press the pressing block 5, so that the toothed plate 52 controls the toothed plate 51 to move upward and disengage from the limiting groove through the gear 53. Then, control the mounting plate 3 to rotate based on the bolt 31, thereby enabling the folded part 4 to move closer to each other. The orientation is adjusted, and after adjustment, the force applied to the pressing block 5 is released. Under the action of multiple springs 54, the pressing block 5 can be controlled to return to its original position and the toothed plate 51 can be inserted into the corresponding limiting groove, thereby achieving the limiting of the mounting plate 3. The fabric strips that need to be folded are passed through the guide tube and formed into a folded state under the action of the guide plate. Then, the folded end is sent into the processing position of the double needle sewing machine body 1. With the operation of the double needle sewing machine body 1, continuous folding and processing operations can be achieved without the need for the operator to manually perform folding operations, which greatly reduces the workload and effectively improves the efficiency of the work.

[0046] The foregoing has provided a detailed description of the hemming device for a double-needle sewing machine according to this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hemming device for a double-needle sewing machine, characterized in that, It includes a double-needle sewing machine body (1), a mounting base (2), a mounting plate (3), a steering limit assembly, a snap-fit ​​limit assembly, a folding piece (4), and a connecting assembly; The mounting base (2) is embedded and fixedly installed on the operating table of the double needle sewing machine body (1). The mounting plate (3) is detachably and rotatably installed on the top side of the mounting base (2) at the center position. The mounting plate (3) has two slots (301). The snap-fit ​​limiting component is set in the two slots (301). The connecting component is set on the folded edge piece (4) and connected to the snap-fit ​​limiting component. The mounting plate (3) has an installation groove. The mounting base (2) has multiple limiting grooves centered on the midpoint of the mounting plate (3). The turning limiting component is set in the installation groove and is adapted to the multiple limiting grooves. The folding piece (4) includes a guide cylinder and a guide plate arranged in a polygonal shape, and the guide plate is fixedly connected to one side inner wall of the guide cylinder.

2. The hemming device for a double-needle sewing machine according to claim 1, characterized in that: The locking and limiting assembly includes two locking blocks (44), multiple guide rods (42), multiple springs (43), and two fixing bars (41). Two fixing bars (41) are fixedly installed at the bottom of the guide cylinder. Multiple guide rods (42) arranged in a parallel manner are fixedly installed on the side of the two fixing bars (41) that are close to each other. Two locking blocks (44) arranged symmetrically and respectively locked in the corresponding locking slots (301) are slidably installed on the multiple guide rods (42). Multiple springs (43) that are movably sleeved on the outside of the corresponding guide rods (42) are fixedly installed between the fixing bars (41) and the locking blocks (44) on the same side.

3. The hemming device for a double-needle sewing machine according to claim 2, characterized in that: Both the card block (44) and the card slot (301) are L-shaped.

4. The hemming device for a double-needle sewing machine according to claim 2, characterized in that: The connecting assembly includes two sliding sleeves (45). Two sliding sleeves (45) are slidably installed on the outer side of the guide cylinder. The two sliding sleeves (45) are fixedly connected to the corresponding locking blocks (44) respectively, and the two sliding sleeves (45) are located between the two fixing strips (41).

5. The hemming device for a double-needle sewing machine according to claim 1, characterized in that: The steering limiting assembly includes a toothed plate 1 (51), a toothed plate 2 (52), a rotating pin, a gear (53), and a pressing block (5). The pressing block (5) is slidably installed on the inner wall of the mounting groove. The toothed plate 2 (52) is fixedly installed on the bottom side of the pressing block (5). The toothed plate 1 (51) parallel to the toothed plate 2 (52) is slidably installed on the bottom inner wall of the mounting groove. The bottom end of the toothed plate 1 (51) is inserted into the corresponding limiting groove. A rotating pin is rotatably installed on the inner wall of the mounting groove. A gear (53) is fixedly sleeved on the rotating pin. Both the toothed plate 1 (51) and the toothed plate 2 (52) mesh with the gear (53).

6. The hemming device for a double-needle sewing machine according to claim 5, characterized in that: The steering limit assembly also includes multiple springs (54). Multiple springs (54) are fixedly installed on the bottom side of the pressing block (5), and the bottom ends of the multiple springs (54) are fixedly installed on the bottom inner wall of the mounting groove.

7. The hemming device for a double-needle sewing machine according to claim 5, characterized in that: The cross-section of the pressing block (5) and the cross-section of the mounting groove are both convex.

8. The hemming device for a double-needle sewing machine according to claim 1, characterized in that: A bolt (31) is rotatably mounted on the top side of the mounting plate (3) at the center position, and the bolt (31) is threaded onto the mounting base (2).

9. The hemming device for a double-needle sewing machine according to claim 1, characterized in that: The number of mounting bases (2) is multiple and they are fixedly installed on the operating table of the double needle sewing machine body (1).

10. The hemming device for a double-needle sewing machine according to claim 1, characterized in that: The connection between adjacent inner walls inside the guide cylinder is rounded.

Images