3D sewing main fixture structure for automotive seat sheet materials

Abstract

The present invention provides a 3D sewing main fixture structure for automotive seat sheet materials, comprising an upper main fixture and a lower main fixture. The upper main fixture is slidably arranged below an upper support by means of connecting slide rails, and the lower main fixture is fixed above a lower support; and the upper main fixture is provided with upper needle-mounted chucks, the lower main fixture is provided with lower needle-mounted chucks, and the upper needle-mounted chucks work in conjunction with the lower needle-mounted chucks. The main fixture structure has clamping, force-relieving, and opening / closing functions. During the sewing of upper and lower sheet materials, the problems, such as deformation and position interference generated by sewn sheet materials and the pulling force on unsewn sheet materials caused by flexible twisting of the sheet materials during sewing, are all solved, so that the structure can be compatible with sheet materials of various shapes.

Description

A 3D sewing master fixture structure for automotive seat sheet material

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411680175.1, filed on November 22, 2024, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This invention relates to the field of fully automatic sewing technology, and in particular to a 3D sewing main clamp structure for automotive seat sheet material. Background Technology

[0004] During the production of car seats, the different sewing paths of the upper and lower panels can lead to various uncertainties such as clamping of the panels and twisting, tearing, interference, falling off, and positional deviation caused by rotation.

[0005] Therefore, there is an urgent need for a 3D sewing master fixture structure for automotive seat sheets that can solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a 3D sewing master fixture structure for automotive seat sheet materials to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following solution:

[0008] This invention provides a 3D sewing main clamp structure for automotive seat sheets, including an upper main clamp and a lower main clamp. The upper main clamp is slidably disposed below an upper support via a connecting slide rail, and the lower main clamp is fixed above the lower support. The upper main clamp is provided with an upper needle suction cup, and the lower main clamp is provided with a lower needle suction cup, which cooperate with each other.

[0009] Preferably, a lifting cylinder is provided between the upper main clamp and the upper support.

[0010] Preferably, a buffer is provided between the upper main clamp and the upper support.

[0011] Preferably, a lifting position fine-tuning bolt is provided between the upper main clamp and the upper support.

[0012] Preferably, the upper main clamp is connected to the upper needle suction cup via an upper slide rail.

[0013] Preferably, the lower main clamp is connected to the lower needle suction cup via a lower sliding rail, and the lower sliding rail is connected to the lower main clamp via a cylinder.

[0014] Preferably, a linear bearing is provided between the lower slide rail and the lower main clamp.

[0015] Preferably, a finger cylinder is provided on the sliding rail.

[0016] Preferably, the sliding rail is provided with a suction cup.

[0017] The present invention achieves the following beneficial technical effects compared to the prior art:

[0018] This invention provides a 3D sewing main clamp structure for automotive seat panels, comprising an upper main clamp and a lower main clamp. The upper main clamp is slidably mounted below an upper support via a connecting slide rail, and the lower main clamp is fixed above the lower support. The upper main clamp is equipped with an upper needle suction cup, and the lower main clamp is equipped with a lower needle suction cup, which cooperate with each other. The main clamp structure has clamping, stress relief, and opening / closing functions. During the sewing process of the upper and lower panels, the problems of deformation and positional interference of the sewn panels, as well as the pulling of the unsewn panels caused by the flexible twisting of the panels during sewing, are all solved, making it adaptable to and compatible with panels of various shapes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of a 3D sewing main fixture for automotive seat sheet provided by the present invention;

[0021] Figure 2 is a schematic diagram of the upper main clamp part in the 3D sewing main clamp structure of automotive seat sheet provided by the present invention;

[0022] Figure 3 is a schematic diagram of the lower main clamp part in the 3D sewing main clamp structure of automotive seat sheet provided by the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The purpose of this invention is to provide a 3D sewing master fixture structure for automotive seat sheets to solve the problems existing in the prior art.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1:

[0027] This embodiment provides a 3D sewing main clamp structure for automotive seat sheet material, as shown in Figures 1-3. It includes an upper main clamp 1 and a lower main clamp 2. The upper main clamp 1 is slidably disposed below the upper support 4 via a connecting slide rail 3. The lower main clamp 2 is fixed above the lower support 5. The upper main clamp 1 is provided with an upper needle suction cup 6, and the lower main clamp 2 is provided with a lower needle suction cup 7. The upper needle suction cup 6 and the lower needle suction cup 7 cooperate with each other.

[0028] In one implementation, a lifting cylinder 8 is provided between the upper main clamp 1 and the upper support 4, which is used for the lifting and micro-movement of the upper main clamp 1.

[0029] As one implementation method, a buffer 9 is provided between the upper main clamp 1 and the upper support 4, which can play a buffering and shock-absorbing role during the lifting process.

[0030] In one embodiment, a lifting position fine-tuning bolt 10 is provided between the upper main clamp 1 and the upper support 4, which can finely adjust the lifting position of the upper main clamp 1.

[0031] In one implementation, the upper main clamp 1 is connected to the upper needle suction cup 6 via the upper slide rail 11.

[0032] In one implementation, the lower main clamp 2 is connected to the lower needle suction cup 7 via the lower slide rail 12, and the lower slide rail 12 is connected to the lower main clamp 2 via the cylinder 13, thereby realizing the independent lifting and lowering of the lower needle suction cup 7.

[0033] As one implementation method, a linear bearing 14 is provided between the lower slide rail 12 and the lower main clamp 2, which can guide the lifting and lowering.

[0034] As one implementation, a finger cylinder 15 is provided on the lower slide rail 12 for locking and securing after the slide rail is positioned.

[0035] As one implementation, the lower slide rail 12 is provided with a suction cup 16 for positioning the upper sheet material after it has been placed.

[0036] This invention provides a 3D sewing main clamp structure for automotive seat panels. Its working principle is as follows: Upper and lower panels are gradually placed onto the lower main clamp 2. The needle cylinder of the lower needle suction cup extends, and the needle is obliquely inserted into the sponge body of the lower panel to lock it in place. Simultaneously, the upper panel is placed behind the lower panel, and the suction cup 16 clamps and locks the upper panel. The upper main clamp 1 moves to the rear directly above the lower main clamp 2. The lifting cylinder 8 of the upper main clamp 1 extends, and the upper main clamp 1 descends. The needle of the upper needle suction cup 6 of the upper main clamp 1 extends, and the needle is obliquely inserted into the sponge body of the lower panel to lock it in place. When the vacuum pressure is released from plate 16, the lifting cylinder 8 of the upper main clamp 1 retracts, and the upper main clamp 1 is raised to its final position, completing the gripping of the upper and lower sheets. During the sewing process, the cylinders of the needle-punching suction cups on the sewn sheets are depressurized one by one, releasing the locking state, effectively solving the problem of sheet twisting and tearing caused by different trajectories. In particular, the cylinders of the needle-punching suction cups, after closing the needle and descending, can further solve the problem of interference between the sewn sheets and unsewn parts during the sewing process. For sheets of different shapes, the slide rail position is adjusted sequentially according to the sewing edge of the sheet, and the finger cylinder 15 is locked. The overall structural design ensures the sewing process and has stronger compatibility.

[0037] This invention has illustrated its principles and implementation methods using specific examples. The descriptions of these embodiments are merely illustrative of the method and its core ideas; furthermore, those skilled in the art will recognize that modifications may be made to the specific implementation methods and application scope based on the principles of this invention. Therefore, the content of this specification should not be construed as limiting the invention.

Claims

1. A 3D sewing main fixture structure for automotive seat panels, characterized in that: It includes an upper main clamp and a lower main clamp. The upper main clamp is slidably disposed below the upper support via a connecting slide rail. The lower main clamp is fixed above the lower support. The upper main clamp is provided with an upper needle suction cup, and the lower main clamp is provided with a lower needle suction cup. The upper needle suction cup and the lower needle suction cup cooperate with each other.

2. The 3D sewing main fixture structure for automotive seat sheet material according to claim 1, characterized in that: A lifting cylinder is provided between the upper main clamp and the upper support.

3. The 3D sewing main fixture structure for automotive seat sheet material according to claim 1, characterized in that: A buffer is provided between the upper main clamp and the upper support.

4. The 3D sewing main fixture structure for automotive seat sheet material according to claim 1, characterized in that: A lifting position fine-tuning bolt is provided between the upper main clamp and the upper support.

5. The 3D sewing main fixture structure for automotive seat sheet material according to claim 1, characterized in that: The upper main clamp is connected to the upper needle suction cup via an upper slide rail.

6. The 3D sewing main fixture structure for automotive seat sheets according to claim 1, characterized in that: The lower main clamp is connected to the lower needle suction cup via a lower sliding rail, and the lower sliding rail is connected to the lower main clamp via a cylinder.

7. The 3D sewing main fixture structure for automotive seat sheet material according to claim 6, characterized in that: A linear bearing is provided between the lower slide rail and the lower main clamp.

8. The 3D sewing main fixture structure for automotive seat sheet material according to claim 6, characterized in that: The sliding rail is equipped with a finger cylinder.

9. The 3D sewing main fixture structure for automotive seat sheets according to claim 6, characterized in that: The sliding rail is equipped with a suction cup.

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