Synchronous material pulling device and covering machine

Abstract

The utility model relates to the technical field of sewing machine manufacturing, in particular to a synchronous material pulling device and a covering machine. The first driving mechanism is arranged on the supporting plate; the rotating device is connected with the first driving mechanism, rotates around the position connected with the first driving mechanism and is connected to the supporting plate through a second driving mechanism; the rotating rod is rotationally connected to the end, away from the first driving mechanism, of the rotating device, and the rotating rod is provided with an abutting part which abuts against the materials and enables the materials to move in the axial direction of the rotating rod; according to the edge covering machine, the first driving mechanism and the second driving mechanism can be used for adjusting the contact and the separation of the abutting part and materials, so that the adjustment is convenient; the two abutting parts are symmetrically arranged, so that the pressure and the rotating speed of the two abutting parts on the materials are kept consistent, and deformation caused by inconsistent speeds on the two sides of the materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine manufacturing, and particularly relates to a synchronous material pulling device and a hemming machine. Background Technique

[0002] A hemming machine is a special device used to process fabrics or other textiles, mainly used to add hemming to the edges of textiles. In the field of textile processing, the material pulling device plays a crucial role. With the continuous development of industrial automation and the change of market demands, the requirements for production efficiency, quality and stability are getting higher and higher. The traditional manual or semi-automatic material pulling methods are difficult to meet the needs of modern production, and problems such as low efficiency, cumbersome operation and easy error-prone are becoming increasingly prominent. The traditional manual material pulling method depends on the proficiency and physical strength of the operator, and there are problems such as high labor intensity, low production efficiency, and inconsistent material pulling length. In addition, manual material pulling is also prone to cause material deformation and damage, affecting product quality. For mechanical material pulling devices, such as roller conveyors or chain conveyors, although these devices can improve production efficiency to a certain extent, they often have problems such as poor synchronization and inconvenient adjustment.

[0003] Therefore, this application develops a synchronous material pulling device and a hemming machine to solve the problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a synchronous material pulling device and a hemming machine to solve the problems of easy deformation, low production efficiency and inconvenient adjustment in the prior art during material pulling.

[0005] The technical solution of the utility model is: a synchronous material pulling device, comprising:

[0006] A support plate;

[0007] A first driving mechanism, arranged on the support plate;

[0008] A rotating device, connected to the first driving mechanism, rotating around the connection position with the first driving mechanism, and connected to the support plate through a second driving mechanism;

[0009] A rotating rod, rotatably connected to the end of the rotating device far from the first driving mechanism, and the rotating rod is provided with an abutting portion along its axial direction for abutting against the material and moving the material.

[0010] Preferably, the rotating rod is centrosymmetric with respect to the center of the rotating device, so that the distances from both ends of the rotating rod to both sides of the rotating device are equal.

[0011] Preferably, the two abutting parts are respectively fixed on the rotating rod and rotate together with the rotating rod, and the two abutting parts are symmetric with respect to the rotating device.

[0012] Preferably, the outer side surface of the abutting part is arc-shaped.

[0013] Preferably, the rotating device includes a pair of limiting blocks, the pair of limiting blocks are connected by a sliding rod, the pair of limiting blocks are respectively rotationally connected to the first driving mechanism and the rotating rod through bearings, and the two bearings rotate synchronously through belt transmission.

[0014] Preferably, a slider is provided on the sliding rod, one end of the second driving mechanism is hinged to the support plate, and the other end is hinged to the slider. When the rotating device rotates, the other end of the second driving mechanism moves on the sliding rod through the slider.

[0015] Preferably, the axis where the second driving mechanism is located is arranged at an angle with the axis where the sliding rod is located, and the corresponding angle is not zero degree.

[0016] Preferably, when the abutting part abuts against the material, the slider does not contact the limiting block.

[0017] A hemming machine, comprising:

[0018] The hemming machine main body; fixed on the hemming machine main body through the support plate.

[0019] Compared with the prior art, the advantages of the present utility model are:

[0020] (1) The abutting part abuts against the material and rotates driven by the first driving mechanism, and drives the material to move through friction, improving the moving speed of the material and the hemming efficiency;

[0021] (2) The contact and separation between the abutting part and the material can be adjusted through the first driving mechanism and the second driving mechanism, making the adjustment convenient;

[0022] (3) The two abutting parts are symmetrically arranged, so that the pressure and rotation speed of the two abutting parts on the material are kept consistent, enabling the material to move stably and preventing deformation caused by inconsistent speeds on both sides of the material. Description of the Drawings

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0024] Figure 1 is a schematic structural view of a synchronous material pulling device described in the present utility model;

[0025] Figure 2 is a front view of a synchronous material pulling device described in the present utility model;

[0026] Figure 3 State diagram of the rotation device driven by the second drive mechanism of the present utility model;

[0027] Figure 4 Position diagram of the main body of the edge wrapper of the present utility model and the synchronous material pulling device.

[0028] Wherein: 1, support plate; 2, first drive mechanism; 3, rotation device; 31, limit block; 32, slide bar; 33, bearing; 34, slider; 4, second drive mechanism; 5, rotation rod; 6, abutting portion; 7, main body of the edge wrapper. Specific embodiments

[0029] The following combines specific embodiments to further elaborate on the content of the present utility model:

[0030] As Figures 1 - 3 shown, a synchronous material pulling device includes a support plate 1, a first drive mechanism 2, a rotation device 3, and a rotation rod 5. The first drive mechanism 2 is arranged on the support plate 1. One end of the rotation device 3 is connected to the first drive mechanism 2 and is connected to the support plate 1 through a second drive mechanism 4. Driven by the second drive mechanism 4, the rotation device 3 rotates around the connection position with the first drive mechanism 2, so that the other end can be raised and lowered during the rotation process. The end of the rotation device 3 far from the first drive mechanism 2 is rotatably connected with a rotation rod 5. The rotation rod 5 is provided with an abutting portion 6 along its axial direction. When the second drive mechanism 4 drives the other end of the rotation device 3 to lower, the rotation rod 5 also gradually lowers. After the abutting portion 6 abuts against the material, the first drive mechanism 2 rotates to drive the rotation rod 5 to rotate together to drive the abutting portion 6 to rotate. The material is moved by the mutual friction between the abutting portion 6 and the material, eliminating the need for manual material movement and improving the movement speed and production efficiency.

[0031] In this embodiment, the rotation rod 5 is centrosymmetric with respect to the center of the rotation device 3, so that the distances from both ends of the rotation rod 5 to the two side surfaces of the rotation device 3 are equal, making the gravity on both sides of the rotation device 3 the same and preventing jitter during the rotation process, reducing vibration and noise caused by uneven force, improving the stability and reliability of the device. Moreover, during the rotation process, both ends of the rotation rod 5 can synchronously contact and pull the material, ensuring the smoothness and consistency of the material during the material pulling process.

[0032] Among them, the two abutting parts 6 are respectively fixed on the rotating rod 5 and are centrosymmetric with respect to the center of the rotating device 3. The abutting parts 6 are centrosymmetric with respect to each other, so that the rotating rod 5 can maintain balance during rotation, avoiding unnecessary vibration and shaking. The symmetric abutting parts 6 enable the two ends of the rotating rod 5 to be synchronized when contacting and pulling the material, ensuring the consistency and uniformity of the bath towel during the material pulling process, and preventing the extrusion forces of the two abutting parts 6 on the material from being unbalanced, with a large extrusion force at one end and a small extrusion force at the other end. During the movement process, the unbalanced extrusion forces at both ends will cause a lateral force on the rotating rod 5 during rotation, causing the material to shift or swing during transportation, unable to move forward in a straight line during the material pulling process, and even problems such as folding, knotting, or tearing may occur. It will also cause the material to be unevenly stretched during the material pulling process, thereby affecting the quality. It will also increase the uneven stress on the rotating rod 5 and its connecting components, resulting in increased wear of these components.

[0033] Furthermore, the outer surface of the abutting part 6 is arc-shaped, which can better fit the material, making the contact between the abutting part 6 and the material more uniform and smooth, helping to maintain the stability of the material during transportation, reducing the phenomena of material offset, swing, or jamming caused by uneven contact or improper angle, and improving production efficiency and product quality.

[0034] The rotating device 3 includes a pair of limiting blocks 31. The limiting blocks 31 are connected by a sliding rod 32. The two limiting blocks 31 are respectively rotationally connected to the first driving mechanism 2 and the rotating rod 5 through bearings 33. The two bearings 33 rotate synchronously through a belt drive. When the first driving mechanism 2 rotates, the corresponding bearing 33 rotates and drives the bearing 33 arranged on the rotating rod 5 to rotate, so that the rotating rod 5 rotates together to be able to contact the material and drive the material to move. Among them, the two bearings 33 are connected by a belt drive, and the belt drive can achieve synchronous transmission without slipping, thereby ensuring that the two bearings 33 and the rotating rod 5 connected thereto can operate synchronously. The accuracy of the synchronous belt drive also helps to reduce the problems of uneven material stress or offset caused by transmission errors.

[0035] Furthermore, a slider 34 is provided on the sliding rod 32. One end of the second driving mechanism 4 is hinged to the support plate 1, and the other end is hinged to the slider 34. When the second driving mechanism 4 operates, the other end of the second driving mechanism 4 slides on the sliding rod 32 through the slider 34, so that the abutting part 6 approaches or moves away from the material, enabling the rotating device 3 to have a larger range of movement and being able to better adjust the distance and extrusion force from the material. At the same time, the angle formed by the axis of the second driving mechanism 4 and the axial direction of the sliding rod 32 is not 90 degrees, preventing the second driving mechanism 4 from being unable to drive the rotating device 3 to rotate when it operates, resulting in the inability to make the abutting part 6 abut on the material and thus unable to move the material.

[0036] To prevent the abutting portion 6 from failing to abut against the material, when the abutting portion 6 abuts against the material, the slider 34 is not in contact with the limiting block 31, so that the second driving mechanism 4 can still continue to drive the slider 34 to move towards the end away from the first driving mechanism 2, and the abutting portion 6 can continue to descend, thereby ensuring that the abutting portion 6 can abut against the material and generate a squeezing force.

[0037] As Figure 4 shown, the edge wrapping machine includes an edge wrapping machine body and a synchronous material pulling device. The synchronous material pulling device is fixed on the edge wrapping machine main body 7 through a support plate 1 and is used for placing the material and performing edge wrapping.

[0038] The implementation principle of this embodiment:

[0039] When moving the material, place the material on the main body of the edge wrapping machine. The second driving mechanism 4 operates, causing one end of the second driving mechanism 4 to move on the slide rod 32 through the slider 34. At the same time, the rotating device 3 rotates around the connection position between the rotating device 3 and the first driving mechanism 2, causing the abutting portion 6 to gradually approach the material. When the abutting portion 6 abuts against the material, the first driving mechanism 2 operates, driving the bearing 33 connected to the first driving mechanism 2 to rotate, and through the belt, causing the bearing 33 connected to the rotating rod 5 to rotate. The rotating rod 5 also rotates together and causes the abutting portion 6 to rotate. The abutting portion 6 rotates on the material, making the material move in a straight line through friction. The two abutting portions 6 are centrosymmetric with respect to the center of the rotating device 3. When moving the material, the squeezing force received by the material is the same, and the moving speed is also the same, so that deformation caused by different speeds will not occur.

[0040] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A synchronous material pulling device, characterized in that, Comprising: Support plate (1); First driving mechanism (2), disposed on the support plate (1); Rotating device (3), connected to the first driving mechanism (2), rotating around the connection position with the first driving mechanism (2), and connected to the support plate (1) through a second driving mechanism (4); Rotating rod (5), rotatably connected to one end of the rotating device (3) away from the first driving mechanism (2), and an abutting portion (6) for abutting against the material and moving the material is provided along the axial direction of the rotating rod (5).

2. The synchronous material pulling device according to claim 1, characterized in that: The rotating rod (5) is centrosymmetric with respect to the center of the rotating device (3), so that the distances from both ends of the rotating rod (5) to both side surfaces of the rotating device (3) are equal.

3. A synchronous material pulling device according to claim 1, characterized in that: The two abutting portions (6) are respectively fixed on the rotating rod (5) and rotate together with the rotating rod (5), and the two abutting portions (6) are symmetric with respect to the rotating device (3).

4. A synchronous material pulling device according to claim 1, characterized in that: The outer side surface of the abutting portion (6) is arc-shaped.

5. A synchronous material pulling device according to claim 1, characterized in that: The rotating device (3) includes a pair of limiting blocks (31), the pair of limiting blocks (31) are connected by a sliding rod (32), and the pair of limiting blocks (31) are respectively rotatably connected to the first driving mechanism (2) and the rotating rod (5) through bearings (33), and the two bearings (33) rotate synchronously through belt drive.

6. The synchronous material pulling device according to claim 5, characterized in that: A slider (34) is provided on the sliding rod (32), one end of the second driving mechanism (4) is hinged to the support plate (1), and the other end is hinged to the slider (34). When the rotating device (3) rotates, the other end of the second driving mechanism (4) moves on the sliding rod (32) through the slider (34).

7. A synchronous material pulling device according to claim 5, characterized in that: The axis where the second driving mechanism (4) is located is arranged at an angle with the axis where the sliding rod (32) is located, and the corresponding angle is not 90 degrees.

8. The synchronous material pulling device according to claim 6, characterized in that: When the abutting portion (6) abuts against the material, the slider (34) does not contact the limiting block (31).

9. A hemming machine, characterized in that, Comprising: Edge wrapping machine main body (7); and the synchronous material pulling device according to any one of claims 1-8, fixed on the edge wrapping machine main body (7) through the support plate (1).

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