Width detection mechanism for braid sewing

Abstract

The utility model discloses a width detection mechanism used for braid sewing, which comprises a braid feeding mechanism and a sewing workbench, a sewing machine is installed on the sewing workbench, the braid feeding mechanism comprises a clamping piece driven by a motor, the clamping piece transports a braid sewing position to the sewing workbench, and the sewing workbench is used for sewing the braid. A detection device used for detecting the width of the sewing position of the braid is arranged on the sewing workbench, the detection device and the sewing machine form a signal through a control panel, the width of the sewing position of each braid is detected through the detection device, the needle feeding distance of the sewing machine is controlled through the control panel, and the sewing length of each braid is made to be matched with the needle feeding distance. Therefore, the problem that sewing of the braid is incomplete due to the fact that the needle feeding distance is too small or the problem that sewing lines are broken due to the fact that the needle feeding distance is too large and needle vacancy occurs is solved.

Description

Technical Field

[0001] This utility model relates to a sewing machine table, and more particularly to a width detection mechanism for webbing sewing. Background Technology

[0002] Loop webbing (such as belts) is formed by joining the two ends of a short strip together and then fixing them with a sewing process. However, in the actual production process, different short strips in the same production batch may have inconsistent widths (short strips are generally formed by cutting a roll of tape to the same length, but during the weaving process, width errors may occur, or during subsequent storage, the webbing may be compressed, causing the width of some parts of the roll to be stretched, resulting in an increase in width). Therefore, when the sewing machine is sewing, there are three possible situations: one is that the length of the sewing is exactly matched with the width of the webbing connection; the second is that the length of the sewing is greater than the width of the webbing connection, that is, the last part of the sewing is in a state of empty needle, which is prone to the sewing thread breaking, thus requiring resewing and affecting production; the third is that the length of the sewing is less than the width of the webbing connection, thus the rear end of the webbing connection is not sewn, resulting in an opening and affecting product quality. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a width detection mechanism for webbing stitching.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A width detection mechanism for webbing stitching includes a webbing feeding mechanism and a sewing worktable. A sewing machine is mounted on the sewing worktable. The webbing feeding mechanism includes a clamping member driven by a motor, which transports the webbing stitch to the sewing worktable. A detection device for detecting the width of the webbing stitch is provided on the sewing worktable. The detection device and the sewing machine generate signals through a control board.

[0006] The number of clamping members is two, and the clamping members clamp the two ends of the webbing respectively.

[0007] The number of clamping elements is one, and the two ends of the webbing are clamped by the clamping element after being overlapped.

[0008] The webbing feeding mechanism includes a slide rail, on which a slider is slidably mounted, and the clamping member is mounted on the slider.

[0009] The rotating shaft of the motor is connected to a lead screw, and a lead screw nut is installed on the slider corresponding to the lead screw. The lead screw nut is connected to the lead screw in a transmission connection.

[0010] The beneficial effects of this utility model are as follows: This utility model includes a webbing feeding mechanism and a sewing worktable. A sewing machine is installed on the sewing worktable. The webbing feeding mechanism includes a clamping component driven by a motor. The clamping component transports the webbing seam to the sewing worktable. A detection device for detecting the width of the webbing seam is provided on the sewing worktable. The detection device and the sewing machine form a signal through a control board. The detection device detects the width of the seam of each webbing and controls the needle distance of the sewing machine through the control board, so that the sewing length of each webbing is matched with the needle distance. This solves the problem of incomplete webbing sewing due to too small a needle distance, or the problem of broken sewing thread due to too large a needle distance. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of Example 1;

[0013] Figure 2 This is a schematic diagram of the webbing clamped in Example 1;

[0014] Figure 3 This is a schematic diagram of Example 2;

[0015] Figure 4 This is a schematic diagram of the webbing clamped in Example 2. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0017] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0018] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0019] Reference Figure 1-4A width detection mechanism for webbing stitching includes a webbing feeding mechanism and a sewing worktable 1. A sewing machine is installed on the sewing worktable 1. The webbing feeding mechanism includes a clamping member 3 driven by a motor 2, which transports the webbing stitch to the sewing worktable 1. A detection device 4 for detecting the width of the webbing stitch is provided on the sewing worktable 1. The detection device 4 and the sewing machine form a signal through a control board. The detection device 4 detects the width of each webbing stitch, and the control board controls the needle distance of the sewing machine to make the stitching length of each webbing match the needle distance. This solves the problem of incomplete webbing stitching due to too small a needle distance, or the problem of broken stitching due to too large a needle distance.

[0020] After the clamping member 3 clamps the webbing, it is transported towards the sewing worktable 1. The position where the webbing needs to be sewn needs to pass through the detection device 4. When the detection device 4 detects the start of the webbing until the webbing is completely separated, it is the width of the webbing that needs to be sewn. This is fed back to the control board through an electrical signal, and then the control board controls the distance of the needle of the sewing machine. Generally speaking, the distance of the needle needs to be slightly greater than the width of the webbing in order to avoid the final sewing effect being unsatisfactory due to the error in the position of the clamping member 3 clamping the webbing.

[0021] The detection device 4 can be a photoelectric sensor, a laser displacement sensor, or other sensors commonly used to detect the size of an object (the working principle of which is existing technology and will not be explained in detail). The number of detection devices 4 can be a single device or multiple devices used in combination, resulting in higher detection accuracy.

[0022] Example 1: Reference Figure 1 , 2 The number of clamping members 3 is two, and the clamping members 3 clamp the two ends of the webbing respectively.

[0023] Example 2: Reference Figure 3 , 4 The number of clamping members 3 is one, and the two ends of the webbing are clamped by the clamping member 3 after being overlapped.

[0024] The webbing feeding mechanism includes a slide rail 5, on which a slider 6 is slidably mounted. The clamping member 3 is mounted on the slider 6 to increase the stability of the movement of the clamping member 3, thereby improving the detection accuracy of the detection device 4 in detecting the width of the webbing.

[0025] The rotating shaft of the motor 2 is connected to a lead screw 7, and a lead screw nut is installed on the slider 6 corresponding to the lead screw 7. The lead screw nut is connected to the lead screw 7 in a transmission connection.

[0026] In addition, the rotating shaft of the motor 2 is equipped with a rotating gear, and the slider 6 is provided with a corresponding rack. The rotating gear and the rack are connected in a transmission connection, which can also realize the conversion of the rotational motion of the motor 2 into the linear motion of the clamping member 3.

[0027] Alternatively, a pulley or belt transmission structure can be used to convert the rotational motion of the motor 2 into the linear motion of the clamping member 3. In this structure, the slider 6 needs to be fixed to the belt.

[0028] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0030] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A width detecting mechanism for webbing stitching, comprising a webbing feeding mechanism and a sewing table (1) on which a sewing machine is installed, characterized in that The tape feeding mechanism comprises a clamping piece (3) driven by a motor (2), which transports the tape seam to the sewing workbench (1), and the sewing workbench (1) is provided with a detection device (4) for detecting the width of the tape seam, and the detection device (4) forms a signal with the sewing machine through a control board.

2. The width detecting mechanism for webbing stitching according to claim 1, characterized by The number of the clamping piece (3) is two, and the clamping piece (3) clamps the two ends of the tape respectively.

3. The width detecting mechanism for webbing stitching according to claim 1, characterized by The number of the clamping piece (3) is one, and the two ends of the tape are clamped by the clamping piece (3) after being overlapped.

4. The width detecting mechanism for webbing stitching according to claim 2 or 3, characterized in that The tape feeding mechanism comprises a sliding rail (5), a sliding block (6) is slidably installed on the sliding rail (5), and the clamping piece (3) is installed on the sliding block (6).

5. The width detecting mechanism for webbing stitching according to claim 4, characterized by The rotating shaft of the motor (2) is connected with a lead screw (7), a lead screw nut corresponding to the lead screw (7) is installed on the sliding block (6), and the lead screw nut is in transmission connection with the lead screw (7).

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