Synchronous gear ring cloth feeding mechanism facilitating cloth positioning

Abstract

The synchronous gear ring cloth feeding mechanism facilitating cloth positioning comprises a presser foot support, a motor, a positioning plate, a gear ring and a gear, a limiting guide rail is arranged at the bottom of the presser foot support, the gear ring is embedded in the limiting guide rail, the motor is fixed on one side of the presser foot support, an output shaft of the motor is connected with the gear, and the gear is meshed with the gear ring. A presser foot plate extends out of the front end of the presser foot support, the positioning plate is arranged on one side of the presser foot plate, the positioning plate is inserted on the presser foot support and comprises a pressing plate and a positioning block, the positioning block is located on the outer side of the pressing plate, and the thickness of the positioning block is larger than that of the pressing plate. The cloth is driven by the gear ring to move forwards, so that displacement of the upper layer and the lower layer of the cloth due to no driving force is avoided; meanwhile, a positioning plate is arranged on the outer side of the presser foot plate to position and limit the outer side of the cloth, so that the track of a sewing needle is always parallel to the outer edge of the cloth, skewing of a sewing thread is avoided, and the sewing effect is guaranteed; and the positioning plate can be replaced, so that the device can be conveniently used under sewing thread widths of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing field especially point to a synchronous gear ring cloth feeding mechanism that cloth positioning is convenient. BACKGROUND

[0002] The existing sewing machine often appears following two kinds of situations in the sewing process:

[0003] 1, only the bottom cloth feeding tooth carries out cloth feeding, and the upper layer cloth will displace with the lower layer cloth because of the friction between the presser foot plate, thereby making the cloth wrinkle, and the sewing effect is poor;

[0004] 2, there is no limiting means for the cloth during sewing, so that the cloth moves left and right during sewing, makes the sewing thread twist, reduces the product grade.

[0005] Therefore, it is an urgent problem to design a cloth feeding mechanism which can feed the upper layer cloth and position the cloth at the same time. UTILITY MODEL CONTENTS

[0006] (I) technical problem to be solved

[0007] The utility model aims at providing a synchronous gear ring cloth feeding mechanism that cloth positioning is convenient, can feed the upper layer cloth and position the cloth at the same time, in order to realize above-mentioned purpose, the utility model takes the following technical scheme:

[0008] (II) technical scheme

[0009] A synchronous gear ring cloth feeding mechanism that cloth positioning is convenient, including presser foot support, motor, positioning plate, gear ring and gear, the bottom of presser foot support is equipped with limiting guide rail, the gear ring is embedded in the limiting guide rail, the motor is fixed at one side of presser foot support, and the output shaft is connected with gear, and the gear is engaged with gear ring;The presser foot plate is extended to the front end of presser foot support, and the positioning plate is arranged at one side of presser foot plate, and the positioning plate is inserted in presser foot support, and it includes pressing plate and positioning block, the positioning block is located at the outside of pressing plate, and the thickness of positioning block is greater than pressing plate.

[0010] Further, the positioning plate further includes a rotating shaft, and the rotating shaft is rotatably inserted into the insertion hole of the presser foot support.

[0011] Further, the presser foot support is provided with a spring hole above the positioning plate, a spring is arranged in the spring hole, and the bottom of the spring is abutted with the positioning plate.

[0012] Further, the inner end of the positioning plate is located between the motor and the presser foot support.

[0013] Further, the number of the gear rings is two, and the two gear rings are arranged in parallel.

[0014] Further, the bottom of the presser foot support is provided with a containing cavity, the limiting guide rail is interrupted at the containing cavity, and the gear is located in the containing cavity.

[0015] Further, the center of the presser foot plate is provided with a sewing hole for the sewing needle to pass through.

[0016] Further, the top of the presser foot support is provided with a containing groove, and a presser foot rod is hinged in the containing groove.

[0017] Further, the sewing machine further comprises a fabric feeding support located below the presser foot support, and the fabric feeding support is also provided with a gear ring and a motor, and the gear rings on the presser foot support and the fabric feeding support correspond to each other.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically:

[0020] 1. The presser foot support is provided with a gear ring, a gear is driven by a motor, the gear drives the gear ring to rotate, the outside of the gear ring is in contact with the fabric, and the fabric can be driven to advance, so that the upper layer of the fabric is prevented from being displaced from the lower layer due to the lack of driving force;

[0021] 2. The outside of the fabric is positioned and limited by the positioning block through the positioning plate, so that the trajectory of the sewing needle is always parallel to the outer edge of the fabric, the sewing thread is prevented from being skewed, and the sewing effect is ensured; meanwhile, the positioning plate can be replaced, so that the positioning plate can be used under different specifications of the sewing thread width. DRAWINGS

[0022] The utility model will be further described in connection with the embodiments and with reference to the drawings.

[0023] Figure 1 is the overall structure schematic view of the front side of the utility model;

[0024] Figure 2 is the overall structure schematic view of the rear side of the utility model;

[0025] Figure 3 is the schematic view of the presser foot support and the fabric feeding support;

[0026] Figure 4 is the utility model explosion map;

[0027] Figure 5 is the appearance structure schematic view of the presser foot support in the state of looking up;

[0028] Figure 6 is the gear ring sectional view of the L-shaped tooth shape;

[0029] Figure 7 is a tooth profile of a T-shaped gear ring section view;

[0030] Figure 8 is a tooth profile of a trapezoidal-shaped gear ring section view;

[0031] Figure 9 is a tooth profile of a hammerhead-shaped gear ring section view.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1, presser foot support; 11, presser foot plate; 12, sewing hole; 13, accommodating groove; 14, limiting guide rail; 15, accommodating cavity; 16, insertion hole; 17, spring hole; 2, motor; 3, positioning plate; 31, pressing plate; 33, rotating shaft; 4, gear ring; 5, presser foot rod; 6, bolt; 7, gear; 8, spring; 9, cloth feeding support; 10, cloth. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0037] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The present application is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Referring to Figures 1 to 5 As shown in the drawings, a synchronous gear ring fabric feeding mechanism for conveniently positioning fabric, comprising a presser foot support 1, a motor 2, a positioning plate 3, a gear ring 4 and a gear 7, wherein:

[0040] The bottom of the presser foot support 1 is provided with a limiting guide rail 14, the gear ring 4 is embedded in the limiting guide rail 14, the motor 2 is fixed on one side of the presser foot support 1, the output shaft of the motor 2 is connected with the gear 7, the gear 7 is engaged with the gear ring 4; the gear 7 is driven by the motor 2 to drive the gear ring 4 to rotate, the outside of the gear ring 4 is in contact with the fabric, so as to drive the fabric to advance, avoiding the displacement of the upper layer of the fabric due to the lack of driving force.

[0041] The front end of the presser foot support 1 extends a presser foot plate 11, the positioning plate 3 is arranged on one side of the presser foot plate 11, the positioning plate 3 is inserted into the presser foot support 1, and the positioning plate 3 comprises a pressing plate 31 and a positioning block, the positioning block is located on the outside of the pressing plate 31, and the thickness of the positioning block is greater than that of the pressing plate 31. During sewing, the positioning block is located on the outside of the sewing table, and the pressing plate 31 and the presser foot plate 11 jointly press the fabric, and the edge of the fabric is close to the inside of the positioning block. Through the arrangement of the positioning plate 3, the outside of the fabric is positioned and limited by the positioning block, so that the trajectory of the sewing needle is always parallel to the outer edge of the fabric, avoiding the skew of the sewing line and ensuring the sewing effect.

[0042] It is worth mentioning that, in order to ensure the sewing effect, the positioning plate 3 further comprises a rotating shaft 33, the rotating shaft 33 is rotatably inserted into the insertion hole 16 of the presser foot support 1, and the presser foot support 1 is provided with a spring hole 17 above the positioning plate 3, a spring 8 is arranged in the spring hole 17, and the bottom of the spring 8 abuts against the positioning plate 3. The spring 8 applies downward pressure to the positioning plate 3, so that the pressing plate 31 can press the fabric tightly, avoiding wrinkles between the sewing line and the edge, and improving the sewing effect.

[0043] It can be understood that, in order to avoid the rotating shaft 33 from being separated from the insertion hole 16, the inner end of the positioning plate 3 is located between the motor 2 and the presser foot support 1, and the positioning plate 3 is limited by the motor 2, without the need to increase parts. When it is necessary to replace the positioning plate 3, the motor 2 only needs to be removed (it is necessary to supplement that, for different widths of the sewing line, a specific specification of the positioning plate 3 is often selected to work for a long time without frequent replacement).

[0044] In order to ensure the sewing effect, the number of the gear rings 4 is two, and the two gear rings 4 are arranged in parallel, so as to feed the fabric from both sides of the sewing needle at the same time, ensuring the synchronous feeding of the fabric.

[0045] It is worth mentioning that the bottom of the presser foot support 1 is provided with a containing cavity 15, the limiting guide rail 14 is interrupted at the containing cavity 15, and the gear 7 is located in the containing cavity 15. Through the arrangement of the containing cavity 15, the gear ring 4 is arranged in suspension at the meshing position of the gear 7, so that the position of the gear 7 is lower than the limiting guide rail 14, the tension is generated between the gear ring 4 and the gear 7, the meshing effect of the gear ring 4 and the gear 7 is ensured, and the loosening is avoided.

[0046] Of course, in order to realize the sewing effect, the center of the presser foot plate 11 is provided with a sewing hole 12 for the sewing needle to pass through; meanwhile, the top of the presser foot support 1 is provided with a containing groove 13, the presser foot rod 5 is hingedly connected in the containing groove 13 through the bolt 6, and the spring (not shown in the figure) is also arranged between the presser foot rod 5 and the presser foot support 1. Through the arrangement of the spring in the containing groove 13, the front end of the presser foot support 1 can be pressed down, so as to press the cloth.

[0047] It should be noted that the gear ring 4 is made of flexible material, so it can be twisted to a certain extent, so as not to block the sewing needle and the presser foot rod 5 (not shown in the figure).

[0048] Preferably, the motor 2 is a reduction motor, and the output shaft thereof is downward, so as to avoid interference caused by the motor 2 exceeding the range of the presser foot support 1.

[0049] It should be noted that, as shown in FIG. 1, Figure 3 The sewing machine further comprises a cloth feeding support 9, which is located below the presser foot support 1, and the gear ring 4 and the motor 2 are also arranged on the cloth feeding support 9, and the gear ring 4 on the cloth feeding support 9 corresponds to the gear ring 4 on the presser foot support 1, and the cloth 10 passes between the two. Through the arrangement of the cloth feeding support 9, the upper and lower gear rings 4 are used to drive the cloth 10 to move forward, so that the upper and lower layers of the cloth 10 are synchronized, and displacement is avoided to affect the sewing effect.

[0050] It should be noted that, as shown in FIG. 1, Figure 6 The teeth of the gear ring 4 in the embodiment are only taken as an example of L-shaped, but it is not limited thereto, and T-shaped (such as Figure 7 ), trapezoidal (such as Figure 8 ), rectangular, triangular, hammer-shaped (such as Figure 9 ) and the like can be used in actual use, and details are not described herein.

[0051] The above description is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model, so any slight modification, equivalent change and modification made according to the technical essence of the utility model are still within the technical range of the utility model.

Claims

1. A synchronized gear ring fabric feeding mechanism for facilitating the positioning of the fabric, characterized in that: Including the foot support (1), motor (2), positioning plate (3), gear ring (4) and gear (7), the foot support (1) bottom is equipped with limit guide rail (14), the gear ring (4) is embedded in the limit guide rail (14), the motor (2) is fixed in the foot support (1) one side, its output shaft is connected with the gear (7), the gear (7) is engaged with the gear ring (4);The foot support (1) front end extends a foot plate (11), the positioning plate (3) is arranged in the foot plate (11) one side, and the positioning plate (3) is inserted in the foot support (1), which includes pressing plate (31) and positioning block, the positioning block is located in the outer side of the pressing plate (31), and the thickness of the positioning block is greater than the pressing plate (31).

2. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, characterized in that: The positioning plate (3) further includes a rotating shaft (33), which is rotatably inserted into the insertion hole (16) of the foot support (1).

3. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 2, characterized in that: The foot support (1) is provided with a spring hole (17) above the positioning plate (3), and a spring (8) is arranged in the spring hole (17), and the bottom of the spring (8) abuts against the positioning plate (3).

4. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 2, characterized in that: The inner end of the positioning plate (3) is located between the motor (2) and the foot support (1).

5. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, wherein: The number of gear rings (4) is two, and they are arranged in parallel.

6. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, wherein: The foot support (1) bottom is equipped with accommodating cavity (15), the limit guide rail (14) is cut off at the accommodating cavity (15), and the gear (7) is located in the accommodating cavity (15).

7. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, wherein: The center of the foot plate (11) is provided with a sewing hole (12) for the sewing needle to pass through.

8. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, wherein: The top of the foot support (1) is provided with an accommodating groove (13), and the foot lever (5) is hinged in the accommodating groove (13).

9. The synchronized gear ring fabric feeding mechanism for easy fabric positioning according to claim 1, wherein: It also includes a feed support (9), which is located below the foot support (1), and is also provided with a gear ring (4) and a motor (2), and the gear ring (4) on the feed support (9) and the foot support (1) corresponds.

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