External sewing device for sofa production

Abstract

The utility model discloses an external sewing device for sofa production, which belongs to the technical field of sofa production and comprises four groups of support rods, adjusting rods are arranged in the four groups of support rods, a workbench is fixedly mounted at the tops of the four groups of adjusting rods, a sewing machine body is fixedly mounted at the top of the workbench, and a sewing machine body is fixedly mounted at the top of the sewing machine body. A plurality of first inclined blocks are fixedly mounted on one sides of the four adjusting rods, placing grooves are formed in the four supporting rods, and the workbench can be rapidly, simply and conveniently lifted or lowered, so that the workbench can accurately adapt to sofas of various different heights; according to the sofa sewing machine, the flexibility and the utilization rate of equipment are greatly improved, sofas of different width specifications can be rapidly and accurately placed and fixed to proper positions, the situation that in the sewing process, the sofas are displaced, shaken or rotated due to the acting force of a sewing machine head or pushing of a feeding mechanism is avoided, sewing errors are avoided, and the sewing efficiency is improved. The problems of skew stitch, thread jumping and the like are solved.

Description

Technical Field

[0001] This utility model relates to the field of sofa manufacturing technology, and in particular to an external sewing device for sofa manufacturing. Background Technology

[0002] In recent years, with the significant improvement in people's living standards and the continued prosperity of the home decoration market, the market demand for sofas, as one of the core pieces of furniture in home life, has shown explosive growth and diversification. Consumers are becoming increasingly demanding in terms of sofa style, size, function, and quality, not only pursuing comfort and aesthetics but also focusing on personalization and customization to meet the needs of different home environments and lifestyles. Traditional sofa production typically uses external sewing equipment with a fixed-height workbench, which is extremely inconvenient when sewing sofas of varying heights. Operators need to spend a lot of time and energy finding suitable auxiliary tools (such as shims or lowering the platform) to adjust the sofa's height. Matching the sewing machine head to the workbench for sewing operations is a cumbersome process that is not only time-consuming and labor-intensive but also severely impacts production efficiency and increases production costs. Furthermore, most traditional sewing devices use simple and crude methods to secure sofas, often relying on basic clamps or manual binding, which cannot ensure the stability of the sofa during sewing. When the sewing machine head sews the sofa fabric, the sofa is prone to displacement, shaking, or even rotation due to the sewing force. This makes it difficult to maintain even and accurate stitches, frequently resulting in skipped stitches, broken threads, and skewed stitches, severely affecting the sofa's appearance quality and sewing strength. Therefore, we propose an external sewing device for sofa production to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide an external sewing device for sofa production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An external sewing device for sofa production includes: four sets of support rods, each set of support rods having an adjusting rod inside; a worktable fixedly mounted on the top of each set of adjusting rods; a sewing machine body fixedly mounted on the top of the worktable; multiple sets of inclined blocks fixedly mounted on one side of each set of adjusting rods; a placement groove formed inside each set of support rods; an adjusting component inside each placement groove; the adjusting component includes: a pull rod; an inclined block fixedly mounted on one side of the pull rod; the plane of the inclined block 2 movably abuts against the plane of one set of inclined blocks; a slider fixedly mounted on the bottom of each inclined block 2; a base plate between the four sets of support rods; a placement plate on the top of the base plate; a fixing component inside the placement plate; the fixing component includes: a bidirectional lead screw; two sets of threaded plates threadedly connected to the outer side of the bidirectional lead screw; three sets of connecting blocks fixedly mounted on the top of each of the two sets of threaded plates; and clamping plates fixedly mounted on the top of each of the three sets of connecting blocks.

[0006] Preferably, a movable block is fixedly installed at the bottom of the placement plate, the movable block is slidably installed inside the base plate, and an electric push rod is fixedly installed on one side of the base plate, the output end of the electric push rod being fixedly connected to the movable block.

[0007] Preferably, the bidirectional lead screw is rotated on the inner walls of both sides of the placement plate, and a motor is fixedly installed on one side of the placement plate, with the output shaft of the motor fixedly connected to the bidirectional lead screw.

[0008] Preferably, each of the four sets of inclined blocks 2 has a slider fixedly installed at its bottom. The four sets of inclined blocks 2 and the four sets of sliders are slidably installed inside the corresponding placement slots. Each of the four sets of sliders has a guide rod slidably installed inside its interior. The two ends of the four sets of guide rods are fixedly connected to the inner walls of the two sides of the corresponding placement slots. Each of the four sets of guide rods has a spring sleeved on its outer side. The two ends of the four sets of springs are fixedly connected to the corresponding slider and the inner wall of one side of the placement slot.

[0009] Preferably, the four sets of pull rods slide through to one side of the corresponding support rod, and a pull plate is fixedly installed on the other side of each of the four sets of pull rods. A pull ring is fixedly installed on one side of each of the four sets of pull plates, and an adjusting rod and multiple sets of inclined blocks located on the same side are slidably installed inside the corresponding support rod.

[0010] Preferably, two sets of limiting rods are slidably installed inside the two sets of threaded plates, and the two ends of the two sets of limiting rods are respectively fixedly connected to the inner walls of the two sides of the placement plate. The top of the placement plate is provided with six sets of limiting grooves, and the six sets of connecting blocks are slidably installed inside the corresponding limiting grooves. The top of the worktable is provided with a rectangular groove.

[0011] In this utility model, an external sewing device for sofa production is provided, which includes an adjustment component, a support rod, an adjustment rod, and a placement groove. When the four sets of adjustment rods at the bottom of the worktable slide upwards, the multiple sets of inclined blocks one on the outside of the corresponding support rods press the inclined surface of the inclined block two through their inclined surfaces. This causes the inclined block two to slide into the placement groove, while driving the bottom slider to press the spring on the outside of the limiting rod. When the adjustment rod drives the worktable to move upwards to the moving height, the spring resets, causing the plane of the inclined block two to move into contact with the plane of the inclined block one, thus fixing the worktable at the specified height. The adjustment component can quickly and easily raise or lower the worktable, so that it can accurately adapt to sofas of various heights. There is no need to equip multiple worktables for sofas of different heights or frequently adjust the basic height of the equipment, which greatly improves the flexibility and utilization of the equipment.

[0012] This utility model describes an external sewing device for sofa production. It includes a fixing component and a placement plate. A drive motor causes a bidirectional lead screw to move two sets of threaded plates on the outer side relative to each other. These threaded plates then move three sets of connecting blocks at the top closer together and further apart. The three sets of connecting blocks on the same side then move the clamping plate at the top to clamp and fix the sofa. This device can quickly and accurately place and fix sofas of different widths in the appropriate positions. It prevents the sofa from shifting, shaking, or rotating during sewing due to the force of the sewing machine head or the pushing of the feeding mechanism, ensuring the uniformity and accuracy of the sewing stitches. It also avoids sewing errors such as slanted stitches or skipped stitches, reducing the defect rate and increasing the product qualification rate and high-quality product rate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an external sewing device for sofa production proposed in this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of an external sewing device for sofa production proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the fixing component structure proposed in this utility model;

[0016] Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0017] In the diagram: 1. Workbench; 2. Support rod; 3. Adjusting rod; 4. Adjusting assembly; 401. Pull plate; 402. Pull rod; 403. Diagonal block two; 404. Guide rod; 405. Spring; 406. Slider; 5. Placement plate; 6. Fixing assembly; 601. Clamping plate; 602. Threaded plate; 603. Two-way lead screw; 604. Motor; 605. Connecting block; 606. Limiting rod; 7. Electric push rod; 8. Moving block; 9. Diagonal block one; 10. Sewing machine body. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-4 An external sewing device for sofa production includes: four sets of support rods 2, each set of support rods 2 having an adjusting rod 3 inside; a worktable 1 fixedly mounted on the top of the four sets of adjusting rods 3; a sewing machine body 10 fixedly mounted on the top of the worktable 1; multiple sets of inclined blocks 9 fixedly mounted on one side of each set of adjusting rods 3; placement grooves opened inside each set of support rods 2; and adjusting components 4 installed inside each set of placement grooves. The adjusting components 4 include: a pull rod 402; and an inclined block 403 fixedly mounted on one side of the pull rod 402. The plane of 403 is in movable contact with the plane of one of the inclined blocks 9. The bottom of each inclined block 403 is fixedly installed with a slider 406. A base plate is set between the four sets of support rods 2. A placement plate 5 is set on the top of the base plate. A fixing component 6 is set inside the placement plate 5. The fixing component 6 includes: a two-way screw 603. Two sets of threaded plates 602 are threadedly connected to the outside of the two-way screw 603. Three sets of connecting blocks 605 are fixedly installed on the top of each of the two sets of threaded plates 602. A clamping plate 601 is fixedly installed on the top of each of the three sets of connecting blocks 605.

[0020] In this embodiment, a movable block 8 is fixedly installed at the bottom of the placement plate 5. The movable block 8 is slidably installed inside the base plate. An electric push rod 7 is fixedly installed on one side of the base plate. The output end of the electric push rod 7 is fixedly connected to the movable block 8, which facilitates pushing the sofa for sewing processing. The rotation of the bidirectional lead screw 603 is installed on the inner walls of both sides of the placement plate 5. A motor 604 is fixedly installed on one side of the placement plate 5. The output shaft of the motor 604 is fixedly connected to the bidirectional lead screw 603, which facilitates the rotation of the bidirectional lead screw 603 and facilitates fixing sofas of different widths.

[0021] In this embodiment, each of the four sets of inclined blocks 403 has a slider 406 fixedly installed at its bottom. The four sets of inclined blocks 403 and the four sets of sliders 406 are slidably installed inside their respective placement slots. Each of the four sets of sliders 406 has a guide rod 404 slidably installed inside it. The two ends of the four guide rods 404 are fixedly connected to the inner walls of both sides of the corresponding placement slots. Each of the four guide rods 404 has a spring 405 sleeved on its outer side. The two ends of the four springs 405 are fixedly connected to the corresponding slider 406 and one side of the inner wall of the placement slot, facilitating the reset of the inclined blocks 403 and the adjustment of the height of the worktable 1. The four sets of pull rods 402 slide through to one side of the corresponding support rod 2. Pull plates 401 are fixedly installed on the other side of each of the four pull plates 401. Pull rings are fixedly installed on one side of each of the four pull plates 401. Adjusting rods 3 and multiple sets of inclined blocks 9 located on the same side are slidably installed inside the corresponding support rods 2, which facilitates precise adjustment of the height of the workbench 1. Two sets of limiting rods 606 are slidably installed inside the two sets of threaded plates 602. The two ends of the two sets of limiting rods 606 are fixedly connected to the inner walls of the two sides of the placement plate 5. Six sets of limiting grooves are opened on the top of the placement plate 5. Six sets of connecting blocks 605 are slidably installed inside the corresponding limiting grooves. A rectangular groove is opened on the top of the workbench 1, which facilitates the stable movement of the clamping plate 601 and prevents it from rotating during movement.

[0022] In this embodiment, during use, the worktable 1 is raised according to the approximate height of the sofa. At this time, the multiple sets of inclined blocks 9 on the outer side of the four sets of adjusting rods 3 at the bottom of the worktable 1 slide upwards on the corresponding support rods 2, and their inclined surfaces press against the inclined blocks 403. This causes the inclined blocks 403 to slide into the placement groove, while simultaneously driving the bottom slider 406 to press against the spring 405 on the outer side of the limiting rod 606. When the adjusting rods 3 drive the worktable 1 to the moved height, the spring 405 resets, causing the plane of the inclined blocks 403 to move into contact with the plane of the inclined blocks 9, thus fixing the worktable 1 at the specified height. Then, sofas of different widths and sizes are placed on top of the placement plate 5. At this time, the drive motor 604 causes the bidirectional lead screw 603 to drive the two sets of threaded plates 602 on the outer side to move relative to each other. The movement causes the two sets of threaded plates 602 to move the three sets of connecting blocks 605 at the top closer and further apart, so that the three sets of connecting blocks 605 on the same side drive the clamping plate 601 at the top to clamp and fix the sofa. Then, by pulling the four sets of pull rings, the pull rod 402 drives the inclined block 2 403 and the bottom slider 406 to move, so that the slider 406 compresses the spring 405, so that the inclined block enters the interior of the placement groove. At this time, the adjusting rod 3 and the inclined block 9 can slide inside the support rod 2, which can precisely adjust the worktable 1, so that the processing distance between the worktable 1 and the sofa is more suitable. Then, by driving the electric push rod 7, the electric push rod 7 drives the moving block 8 to move horizontally left and right. Then, through the rectangular groove and the sewing machine body 10, the sofa can be processed, avoiding the need for manual pushing of the sofa body for continuous sewing.

[0023] The foregoing has provided a detailed description of the external sewing device for sofa production provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above 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. An external sewing device for sofa production, characterized in that, include: Four sets of support rods (2), each set of support rods (2) has an adjusting rod (3) inside, and a workbench (1) is fixedly installed on the top of each set of adjusting rods (3). A sewing machine body (10) is fixedly installed on the top of the workbench (1). Multiple sets of inclined blocks (9) are fixedly installed on one side of each set of adjusting rods (3). Each set of support rods (2) has a placement groove inside, and each set of placement grooves has an adjusting component (4). The adjusting component (4) includes: a pull rod (402), and an inclined block (403) is fixedly installed on one side of the pull rod (402). The plane of the inclined block (403) is parallel to the plane of the inclined block (403). One set of inclined blocks (9) is in planar movable contact, and the bottom of the inclined block (403) is fixedly installed with sliders (406). A base plate is provided between the four sets of support rods (2). A placement plate (5) is provided on the top of the base plate. A fixing component (6) is provided inside the placement plate (5). The fixing component (6) includes: a two-way screw (603). The outer side of the two-way screw (603) is threaded with two sets of threaded plates (602). The top of the two sets of threaded plates (602) is fixedly installed with three sets of connecting blocks (605). The top of the three sets of connecting blocks (605) is fixedly installed with clamping plates (601).

2. The external sewing device for sofa production according to claim 1, characterized in that, A movable block (8) is fixedly installed at the bottom of the placement plate (5). The movable block (8) is slidably installed inside the base plate. An electric push rod (7) is fixedly installed on one side of the base plate. The output end of the electric push rod (7) is fixedly connected to the movable block (8).

3. The external sewing device for sofa production according to claim 1, characterized in that, The bidirectional lead screw (603) is rotated and mounted on the inner walls of both sides of the placement plate (5). A motor (604) is fixedly mounted on one side of the placement plate (5), and the output shaft of the motor (604) is fixedly connected to the bidirectional lead screw (603).

4. The external sewing device for sofa production according to claim 1, characterized in that, Each of the four sets of inclined blocks (403) has a slider (406) fixedly installed at its bottom. The four sets of inclined blocks (403) and the four sets of sliders (406) are slidably installed inside the corresponding placement slots. Each of the four sets of sliders (406) has a guide rod (404) slidably installed inside. The two ends of the four sets of guide rods (404) are fixedly connected to the inner walls of the two sides of the corresponding placement slots. Each of the four sets of guide rods (404) has a spring (405) sleeved on its outer side. The two ends of the four sets of springs (405) are fixedly connected to the corresponding slider (406) and the inner wall of one side of the placement slot.

5. The external sewing device for sofa production according to claim 1, characterized in that, The four sets of pull rods (402) slide through to one side of the corresponding support rod (2), and the other side of the four sets of pull rods (402) is fixedly installed with a pull plate (401). The pull plate (401) is fixedly installed with a pull ring on one side. The adjusting rod (3) and multiple sets of inclined blocks (9) located on the same side are slidably installed inside the corresponding support rod (2).

6. The external sewing device for sofa production according to claim 1, characterized in that, Two sets of limiting rods (606) are slidably installed inside the two sets of threaded plates (602). The two ends of the two sets of limiting rods (606) are fixedly connected to the inner walls of the two sides of the placement plate (5). The top of the placement plate (5) is provided with six sets of limiting grooves. The six sets of connecting blocks (605) are slidably installed inside the corresponding limiting grooves. The top of the workbench (1) is provided with a rectangular groove.

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