Corner sewing device of a hemming machine

Abstract

The utility model relates to the technical field of corner sewing of edge bonding machine, disclose a corner sewing device of edge bonding machine, including sewing assembly and install the auxiliary assembly of sewing assembly one side, the auxiliary assembly includes the mounting plate fixedly installed in the lateral wall of sewing assembly, one side of mounting plate is provided with fixed shaft, the bottom fixed mounting of fixed shaft has the spring, the both ends of fixed shaft are equipped with the sleeve shaft of sleeve, and the outside fixed mounting of two groups sleeve shaft has the clamping plate. The utility model through the spring bending deformation of double shaft motor drive, makes it can be active to fit the mattress corner of different size and radian, utilizes the other output end drive push board of double shaft motor and drives the pull rope movement, controls the deflection of clamping plate around fixed shaft and compresses tightly the other side of mattress, realizes stable clamping in combination with the resilience of torsion spring, further effectively prevents the displacement of fabric in the sewing process, guarantees the even and stable sewing stitch, and can adapt to the edge sewing of different thickness and hardness mattress and similar soft furniture.

Description

Technical Field

[0001] This utility model relates to the field of corner sewing technology for edging machines, specifically, to a corner sewing device for an edging machine. Background Technology

[0002] In the production of upholstered furniture such as mattresses and sofas, edge banding machines are used to bind and sew the edges, with corner sewing being particularly critical. Traditional edge banding machines often suffer from inaccurate sewing, wrinkling, or misalignment when sewing corners due to uneven fabric tension and complex corner shapes, affecting product quality and aesthetics. Although some auxiliary fixing devices exist in the prior art, they still suffer from problems such as inconvenient adjustment, poor adaptability, and inability to effectively fit corners with different curvatures, resulting in low sewing efficiency and cumbersome operation. Therefore, those skilled in the art provide a corner sewing device for edge banding machines to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to provide a corner sewing device for a edging machine, which solves the problem of corner sewing in the prior art.

[0004] This utility model provides the following technical solution: a corner sewing device for a hemming machine, including a sewing assembly and an auxiliary assembly installed on one side of the sewing assembly. The auxiliary assembly includes a mounting plate fixedly installed on the side wall of the sewing assembly. A fixed shaft is provided on one side of the mounting plate. A spring is fixedly installed at the bottom of the fixed shaft. Sleeves are sleeved at both ends of the fixed shaft. The sleeves are connected to the outer side of the fixed shaft through a torsion spring preset on their inner side. A clamping plate is fixedly installed on the outer side of the two sets of sleeves.

[0005] As a preferred embodiment of the above technical solution, the inner cavity of the mounting plate is provided with a movable groove, and a mounting groove is symmetrically provided on one side of the movable groove. A dual-axis motor is mounted on the mounting plate through the mounting groove. One set of output ends of the dual-axis motor passes through the side wall of the mounting plate and is connected to the outside of the spring piece. The other set of output ends of the dual-axis motor passes through the movable groove and extends to its inner side.

[0006] As a preferred embodiment of the above technical solution, the mounting plate is fitted with a push plate through a movable slot. The end of the push plate near the dual-axis motor is fixedly connected to the output end of the dual-axis motor, and a pull rope is fixedly installed on the top of the push plate.

[0007] As a preferred embodiment of the above technical solution, an arc-shaped connecting plate is fixedly installed on the top of the mounting plate, the other end of the connecting plate is fixedly connected to the outer side of the fixed shaft, and a steering shaft is fixedly installed on the outer side of the connecting plate.

[0008] As a preferred embodiment of the above technical solution, a first groove is provided through the middle of the outer side of the connecting plate, and a second groove is provided at the top of the mounting plate that communicates with the movable groove. The pull rope extends to the outer side through the second groove, the first groove, and the steering shaft.

[0009] As a preferred embodiment of the above technical solution, an installation shaft is fixedly installed on the outer side of the two sets of sleeve shafts, and the outer side of the installation shaft is fixedly connected to one end of the pull rope.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a dual-axis motor to drive a spring sheet to bend and deform, enabling it to actively conform to the corners of mattresses of different sizes and curvatures. The other output of the dual-axis motor drives a push plate and pulls a rope, controlling the clamping plate to deflect around a fixed axis and press against the other side of the mattress. Combined with the rebound effect of a torsion spring, this achieves stable clamping. This effectively prevents fabric displacement during sewing, ensuring uniform and stable stitches, and is adaptable to mattresses of different thicknesses and firmnesses, as well as edge sewing for similar upholstered furniture. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the corner sewing device of a hemming machine; Figure 2 A side view of the structure of a corner sewing device for an edge-sealing machine; Figure 3 This is a schematic diagram of the structure of an auxiliary component of a corner sewing device for an edge-sealing machine; Figure 4 An exploded view of the structure of an auxiliary component of a corner sewing device for an edge-sealing machine; Figure 5 A cross-sectional view of the connection structure of the corner sewing device connecting plate of an edge-sealing machine; Figure 6 This is a schematic diagram of the structure of the mounting plate for the corner sewing device of a hemming machine.

[0012] Legend:

[0013] 1. Sewing components; 2. Auxiliary components; 201. Mounting plate; 202. Movable groove; 203. Mounting groove; 204. Dual-axis motor; 205. Push plate; 206. Connecting plate; 207. First groove; 208. Steering shaft; 209. Pull rope; 210. Mounting shaft; 211. Fixed shaft; 212. Sleeve shaft; 213. Spring piece; 214. Clamping plate; 215. Second groove. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figure 1 - Figure 6 As shown, this utility model provides a technical solution: a corner sewing device for a hemming machine, including a sewing component 1 and an auxiliary component 2 installed on one side of the sewing component 1. The auxiliary component 2 includes a mounting plate 201 fixedly installed on the side wall of the sewing component 1. A fixed shaft 211 is provided on one side of the mounting plate 201. A spring piece 213 is fixedly installed at the bottom of the fixed shaft 211. Sleeve shafts 212 are sleeved at both ends of the fixed shaft 211. The sleeve shafts 212 are connected to the outer side of the fixed shaft 211 through a torsion spring preset on their inner side. A clamping plate 214 is fixedly installed on the outer side of the two sets of sleeve shafts 212.

[0016] As one implementation method in this embodiment, please refer to Figure 3 , Figure 4 and Figure 5 As shown, the inner cavity of the mounting plate 201 is provided with a movable groove 202, and a mounting groove 203 is symmetrically provided on one side of the movable groove 202. The mounting plate 201 is fitted with a dual-axis motor 204 through the mounting groove 203. One set of output ends of the dual-axis motor 204 passes through the side wall of the mounting plate 201 and is connected to the outside of the spring piece 213. The other set of output ends of the dual-axis motor 204 passes through the movable groove 202 and extends to its inner side. The dual-axis motor 204 pushes the spring piece 213 to move, causing the spring piece 213 to deform and thus conform to the corner of the mattress.

[0017] Furthermore, the mounting plate 201 is fitted with a push plate 205 through the movable groove 202. One end of the push plate 205 near the dual-axis motor 204 is fixedly connected to the output end of the dual-axis motor 204. A pull rope 209 is fixedly installed on the top of the push plate 205. The dual-axis motor 204 facilitates pushing the push plate 205 to move inside the movable groove 202 and pulling the pull rope 209 to move.

[0018] Furthermore, an arc-shaped connecting plate 206 is fixedly installed on the top of the mounting plate 201, and the other end of the connecting plate 206 is fixedly connected to the outer side of the fixed shaft 211. A steering shaft 208 is fixedly installed on the outer side of the connecting plate 206.

[0019] Furthermore, a first groove 207 is provided through the middle of the outer side of the connecting plate 206, and the first groove 207 is located on one side of the steering shaft 208. A second groove 215 is provided on the top of the mounting plate 201, which is connected to the movable groove 202. The pull rope 209 extends to the outer side through the second groove 215, the first groove 207 and the steering shaft 208.

[0020] As one implementation method in this embodiment, please refer to Figure 5 and Figure 6As shown, mounting shafts 210 are fixedly installed on the outer side of the two sets of shafts 212, and the outer side of the mounting shafts 210 is fixedly connected to one end of the pull rope 209.

[0021] Working principle: In use, first move the sewing assembly 1 to the appropriate position. Then, start the dual-axis motor 204. The dual-axis motor 204 pushes the spring 213 through one of its output ends, causing the spring 213 to bend and thus fit against one side of the mattress. The dual-axis motor 204, together with the spring 213, limits the side wall of the mattress. Next, start the dual-axis motor 204, which drives the push plate 205 to move through its other output end. The push plate 205 then drives the pull cord 209 to move, and through the mounting shaft 210, drives the sleeve shaft 212 to deflect around the fixed shaft 211, thereby causing the clamping plate 214 to deflect until the clamping plate 214 contacts the other side of the mattress. At this time, start the dual-axis motor 204 in reverse and release the pull cord 209 with the push plate 205. The clamping plate 214 then rebounds under the action of the torsion spring and presses the mattress firmly, thus preventing the mattress from shifting during the sewing process.

[0022] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A corner sewing device for a hemming machine, comprising a sewing assembly (1) and an auxiliary assembly (2) mounted on one side of the sewing assembly (1), characterized in that: The auxiliary component (2) includes a mounting plate (201) fixedly installed on the side wall of the sewing component (1). A fixed shaft (211) is provided on one side of the mounting plate (201). A spring piece (213) is fixedly installed at the bottom of the fixed shaft (211). Sleeve shafts (212) are sleeved at both ends of the fixed shaft (211). The sleeve shafts (212) are connected to the outside of the fixed shaft (211) through a torsion spring preset on its inner side. A clamping plate (214) is fixedly installed on the outside of the two sets of sleeve shafts (212).

2. The corner sewing device of the hemming machine according to claim 1, characterized in that: The inner cavity of the mounting plate (201) is provided with a movable groove (202), and a mounting groove (203) is symmetrically provided on one side of the movable groove (202). The mounting plate (201) is fitted with a dual-axis motor (204) through the mounting groove (203). One set of output ends of the dual-axis motor (204) passes through the side wall of the mounting plate (201) and is connected to the outside of the spring piece (213). The other set of output ends of the dual-axis motor (204) passes through the movable groove (202) and extends to its inner side.

3. The corner sewing device of the hemming machine according to claim 2, characterized in that: The mounting plate (201) is fitted with a push plate (205) through the movable groove (202). The end of the push plate (205) near the dual-axis motor (204) is fixedly connected to the output end of the dual-axis motor (204). A pull rope (209) is fixedly installed on the top of the push plate (205).

4. The corner sewing device of the hemming machine according to claim 3, characterized in that: An arc-shaped connecting plate (206) is fixedly installed on the top of the mounting plate (201). The other end of the connecting plate (206) is fixedly connected to the outside of the fixed shaft (211). A steering shaft (208) is fixedly installed on the outside of the connecting plate (206).

5. The corner sewing device of the hemming machine according to claim 4, characterized in that: The connecting plate (206) has a first groove (207) through the middle of its outer side, and the mounting plate (201) has a second groove (215) through the movable groove (202) at its top. The pull rope (209) extends to its outer side through the second groove (215), the first groove (207) and the steering shaft (208).

6. The corner sewing device of the hemming machine according to claim 1, characterized in that: An installation shaft (210) is fixedly installed on the outer side of the two sets of sleeve shafts (212), and the outer side of the installation shaft (210) is fixedly connected to one end of the pull rope (209).

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