Rotary supporting mechanism

Abstract

The utility model relates to the technical field of sewing machine manufacturing, in particular to a rotary supporting mechanism which comprises a workbench and a cutting head installed on the workbench. The working table comprises a mounting table top and a supporting table top, the cutting head is fixed on the mounting table top, and a machine needle on the cutting head is arranged on one side deviating from the supporting table top; the supporting table top is used for locally supporting materials, and the outer contour of the supporting table top is in an arc shape. The supporting mechanism is arranged below the supporting table top and used for bearing materials falling from the supporting table top; the supporting mechanism comprises a first guide roller and a second guide roller, one end of the first guide roller is connected with the driving mechanism, the other end of the first guide roller is rotationally connected to the support, the two ends of the second guide roller are rotationally connected to the support, and the first guide roller and the second guide roller are connected through a conveying belt. The edge of the orthographic projection of the supporting table top on the conveying belt falls on the conveying belt.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine manufacturing, in particular to a rotary support mechanism. Background Art

[0002] In modern industrial production, hemming machines, as an important processing equipment, are widely used in textiles, clothing, curtains, cardboard and other fields. Its main function is to hem the edges of products to improve the appearance, durability and safety of products. When dealing with materials with larger areas, some materials will fall along the edge of the workbench. At this time, when hemming the materials, the lack of a stable support structure will cause the materials to deviate or wrinkle during the transmission process, affecting the hemming effect. Or the instability of the materials during the transmission process makes it difficult to ensure the hemming effect, resulting in problems such as uneven hemming and loose seams.

[0003] Therefore, the present application develops a rotation support mechanism to solve the problems existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a rotating support mechanism to solve the problem in the prior art that there is no effective support structure, which leads to uneven force or deviation during material movement and poor hemming effect.

[0005] The technical solution of the utility model is: a rotating support mechanism, comprising:

[0006] A workbench and a cutting head mounted on the workbench; the workbench includes a mounting table and a supporting table, the cutting head is fixed on the mounting table, and the needle on the cutting head is arranged on a side biased toward the supporting table; the supporting table provides partial support for the material, and the outer contour of the supporting table is in an arc shape;

[0007] A support mechanism is arranged below the support table, and supports the material hanging from the support table; the support mechanism includes a first guide roller and a second guide roller, one end of the first guide roller is connected to the driving mechanism, and the other end is rotatably connected to the bracket, both ends of the second guide roller are rotatably connected to the bracket, the first guide roller and the second guide roller are connected by a conveyor belt, the conveying direction of the conveyor belt is the same as the moving direction of the material, and the edge of the positive projection of the support table on the conveyor belt falls on the conveyor belt.

[0008] Preferably, the conveyor belt is arranged obliquely relative to the workbench in a horizontal plane, and a horizontal straight-line distance between the conveyor belt and the installation table surface gradually decreases along a conveying direction.

[0009] Preferably, guiding grooves are respectively arranged on both sides of the bracket. The positions of the two guiding grooves correspond to the positions of the two ends of the second guide roller. The roller shaft of the second guide roller is slidably arranged in the guiding grooves and fixed by positioning pins.

[0010] Preferably, when the second guide roller is located at both ends of the guiding groove, the edges of the orthographic projection of the support tabletop on the conveyor belt all fall on the conveyor belt.

[0011] Preferably, the conveying speed of the conveyor belt is greater than the moving speed of the material on the support tabletop. The distance of the support tabletop in the moving direction of the material is equal to the distance of the first guide roller and the second guide roller in the moving direction of the material.

[0012] Preferably, the driving end of the driving mechanism is connected to pulley one, and one end of the first guide roller close to the driving mechanism is connected to pulley two. Pulley one and pulley two are connected by a belt.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] (1) The conveyor belt supports the material hanging down from the workbench and makes the moving speed of the material on the conveyor belt consistent with the moving speed on the workbench, so that the material will not be deformed due to uneven force during the moving process, affecting the edge wrapping effect;

[0015] (2) The projection of the edge of the workbench falls on the conveyor belt, so that the material is always on the conveyor belt during the moving process and will not be offset due to the overweight of the hanging material;

[0016] (3) The conveyor belt can be finely adjusted through the guiding grooves, so that the conveyor belt is always in a proper state and will not be severely deformed or overly tightened due to the gradually increasing weight of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0018] Figure 1 is a schematic structural diagram of a rotary support mechanism according to the present utility model;

[0019] Figure 2 is a top view of a rotary support mechanism according to the present utility model;

[0020] Figure 3 is a schematic structural diagram of the support mechanism according to the present utility model;

[0021] Figure 4 is a connection structure diagram of the driving mechanism and the first guide roller according to the present utility model;

[0022] Figure 5 Side view of a rotary support mechanism according to the present utility model;

[0023] Figure 6 is Figure 5 Enlarged structural view of A in

[0024] Wherein: 1, workbench; 11, installation tabletop; 12, support tabletop; 2, support mechanism; 21, first guide roller; 22, second guide roller; 23, drive mechanism; 231, pulley one; 232, pulley two; 24, conveyor belt; 3, bracket; 31, guide groove; 32, positioning pin; 4, cutting head. Specific embodiments

[0025] The following combines specific embodiments to further elaborate on the content of the present utility model:

[0026] As Figure 1 shown, a rotary support mechanism 2 includes a workbench 1 and a cutting head 4 installed on the workbench 1. The workbench 1 includes an installation tabletop 11 and a support tabletop. The installation tabletop 11 provides an installation position for the cutting head 4, and the sewing needle on the cutting head 4 is arranged on one side biased towards the support tabletop 12. The material is placed on the support tabletop 12. During the movement, when the edge of the material passes through the cutting head 4, edge wrapping is performed. The support tabletop 12 can only provide partial support when supporting the material, and the remaining material will fall vertically below along the arc-shaped outer contour of the support tabletop 12 and is supported by the support mechanism 2 arranged below the support tabletop 12. The support mechanism 2 includes a first guide roller 21 and a second guide roller 22. One end of the first guide roller 21 is connected to the bracket 3, and the other end is connected to the drive mechanism 23. The drive mechanism 23 drives the first guide roller 21 to rotate. Both ends of the second guide roller 22 are rotatably connected to the bracket 3 and are connected to the first guide roller 21 through the conveyor belt 24. When the first guide roller 21 rotates, the second guide roller 22 is driven to rotate together through the conveyor belt 24, so that the two are synchronized and no faults such as jamming will occur. Moreover, the conveying direction of the conveyor belt 24 is the same as the moving direction of the material, keeping in sync with the material, preventing the material on the support tabletop 12 and the material on the conveyor belt 24 from having different directions or being misaligned, resulting in uneven stress on the material, and thus causing deformation during the edge wrapping process and affecting the edge wrapping quality and effect.

[0027] As Figure 2 shown, to improve the stability of the material during the movement, the edge of the orthographic projection of the support tabletop 12 on the conveyor belt 24 falls on the conveyor belt 24. When the material falls from the support tabletop 12, the falling material can completely fall on the conveyor belt 24, reducing the sliding and displacement of the material, preventing some material from not being able to fall on the conveyor belt 24 when falling, resulting in increased stress at some positions, and thus causing the material to shift and affecting the edge wrapping effect.

[0028] Furthermore, the conveyor belt is inclined relative to the workbench 1 in the horizontal plane, and the horizontal straight-line distance between the conveyor belt 24 and the installation table surface 11 gradually decreases along the conveying direction. The inclined conveyor belt 24 helps the material to naturally approach the workbench 1, thereby maintaining the flatness of the material during movement and ensuring the accuracy and uniformity of edge wrapping. The conveyor belt 24 gradually approaching the workbench 1 corresponds to the support table surface 12, which can relieve the burden on the sagging part of the material and reduce wrinkles or stretching problems caused by uneven weight. At the same time, it can guide the material to move along a predetermined path and direction, ensuring the smooth progress of the edge wrapping process.

[0029] As Figures 3 - 6 shown, in order to adapt to materials of different sizes and weights, guide grooves 31 are respectively provided on both sides of the bracket 3, and the positions of the guide grooves 31 correspond to the positions of both ends of the second guide roller 22. The roller shaft of the second guide roller 22 is slidably arranged in the guide groove 31 and fixed by a positioning pin 32, so that the second guide roller 22 can slide in the guide groove 31 according to different materials, thereby realizing the tightness of the conveyor belt 24 and keeping the conveyor belt 24 in a stable running state. The second guide roller 22 performs dynamic adjustment along the conveying direction, which can help the conveyor belt 24 and the material automatically correct offsets and improve the edge wrapping effect of the material.

[0030] Among them, when the second guide roller 22 moves to both ends of the guide groove 31, the edges of the orthographic projection of the support table surface 12 on the conveyor belt 24 all fall on the conveyor belt 24. If the conveyor belt 24 is too long, it may cause the bath towel to be more likely to shift or twist during movement. If the conveyor belt 24 is too long, the moving distance of the sagging part of the material will be longer than the moving distance on the support table surface 12, thereby increasing the risk of wrinkles, creases or other irregular deformations, which will affect the quality of edge wrapping and result in an uneven appearance of the finished product. If the conveyor belt 24 is too short, it will not be able to effectively support the sagging material, causing uneven stress on the material on the support table surface 12 and resulting in material offset and poor edge wrapping effect.

[0031] In order to ensure the synchronization of the materials on the support table surface 12 and the conveyor belt 24, due to the inclined setting of the conveyor belt 24, the moving distance of the conveyor belt 24 is greater than the distance of the material on the support table surface 12. Therefore, the conveying speed of the conveyor belt 24 is greater than the moving speed of the material on the support table surface 12, and the distance of the support table surface 12 in the moving direction of the material is equal to the distance of the first guide roller 21 and the second guide roller 22 in the moving direction of the material. The materials on the conveyor belt 24 and the support table surface move together and are always in a synchronous state in the same direction, preventing misalignment and resulting in extra force acting on the material and causing the material to deviate.

[0032] Further, the driving end of the driving mechanism 23 is connected to the first pulley 231, and one end of the first guide roller 21 close to the driving mechanism 23 is connected to the second pulley 232. The first pulley 231 and the second pulley 232 are connected by a belt, which can ensure that when the driving mechanism 23 rotates, the first pulley 231 and the second pulley 232 can run synchronously, ensuring that the driving mechanism 23 will not slip during operation, resulting in the inability to accurately control the moving speed.

[0033] The implementation principle of this embodiment:

[0034] When the material is placed on the workbench 1 for edge wrapping, part of the material falls vertically on the conveyor belt 24 along the outer contour of the support table surface 12. The driving mechanism 23 drives the first guide roller 21 to rotate through the first pulley 231 and the second pulley 232. The first guide roller 21 makes the second guide roller 22 rotate together with the first guide roller 21 through the conveyor belt 24, so that the material on the conveyor belt moves synchronously with the material on the support table surface 12, so that the material will not be unevenly stressed or the dropped part is too heavy during edge wrapping, resulting in the material shifting during the moving process, thus affecting the edge wrapping quality. At the same time, the second guide roller can slide in the guide groove 31, so that the conveyor belt 24 can adapt to materials of different weights and always be in a suitable transmission state, preventing the conveyor belt 24 from being too tight after being severely deformed, affecting the moving speed of the material, and thus causing an excessive force to act on the material, affecting the edge wrapping effect.

[0035] The above embodiments are only for illustrating the technical concept and features of the present invention, and their 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 should not 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 without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, no matter from which point of view, 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 rotary support mechanism, characterized in that, Comprising: A workbench (1) and a cutting head (4) installed on the workbench (1); the workbench (1) includes an installation tabletop (11) and a support tabletop (12), the cutting head (4) is fixed on the installation tabletop (11), and the sewing needle on the cutting head (4) is arranged on one side inclined towards the support tabletop (12); the support tabletop (12) is for partial support of the material, and the outer contour of the support tabletop (12) is arc-shaped; A support mechanism (2), arranged below the support tabletop (12), for supporting the material hanging down from the support tabletop (12); the support mechanism (2) includes a first guide roller (21) and a second guide roller (22), one end of the first guide roller (21) is connected to a driving mechanism (23), the other end is rotatably connected to a bracket (3), both ends of the second guide roller (22) are rotatably connected to the bracket (3), the first guide roller (21) and the second guide roller (22) are connected by a conveyor belt (24), the conveying direction of the conveyor belt (24) is the same as the moving direction of the material, and the edge of the orthographic projection of the support tabletop (12) on the conveyor belt (24) falls on the conveyor belt (24).

2. The rotational support mechanism according to claim 1, characterized in that: The conveyor belt (24) is inclined relative to the workbench (1) in the horizontal plane, and the horizontal linear distance between the conveyor belt (24) and the installation tabletop (11) gradually decreases along the conveying direction.

3. A rotary support mechanism according to claim 1, characterized in that: Guide grooves (31) are respectively arranged on both sides of the bracket (3), the positions of the two guide grooves (31) correspond to the positions of both ends of the second guide roller (22), the roller shaft of the second guide roller (22) is slidably arranged in the guide grooves (31) and fixed by a positioning pin (32).

4. A rotary support mechanism according to claim 3, characterized in that: When the second guide roller (22) is located at both ends of the guide groove (31), the edges of the orthographic projection of the support tabletop (12) on the conveyor belt (24) both fall on the conveyor belt (24).

5. The rotational support mechanism according to claim 1, wherein: The conveying speed of the conveyor belt (24) is greater than the moving speed of the material on the support tabletop (12), and the distance of the support tabletop (12) along the moving direction of the material is equal to the distance of the first guide roller (21) and the second guide roller (22) along the moving direction of the material.

6. The rotational support mechanism according to claim 1, wherein: The driving end of the driving mechanism (23) is connected to a first pulley (231), one end of the first guide roller (21) close to the driving mechanism (23) is connected to a second pulley (232), and the first pulley (231) and the second pulley (232) are connected by a belt.

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