High-efficiency looping mechanism for braid

Abstract

The utility model discloses a high-efficiency looping mechanism for braids, which comprises a frame, a feeding mechanism for conveying the braids is mounted on the frame, a turnover mechanism is mounted at the front end of the feeding mechanism on the frame, a clamp controlled by a first driving mechanism is mounted on a rotating shaft of the turnover mechanism, and a second driving mechanism is mounted on the rotating shaft of the turnover mechanism. During production, the braid leaves from the front end of the feeding mechanism and droops to the position between the clamps, the clamps are turned over by 180 degrees, after the braid is looped, the feeding mechanism continues to feed the braid to the preset length of the braid, the produced products are consistent in length and quality, the automation degree is high, the production efficiency is high, and in cooperation with the material taking mechanism, the production efficiency is high. The method can be used for products with or without thermal fuses, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to a stitching device, in particular to a high-efficiency loop-forming mechanism for webbing. Background Art

[0002] The existing production of elastic bands such as elastic waistbands is mostly done manually or with the assistance of semi-automatic equipment. After the strips of elastic bands are formed into a ring, they are put into a sewing machine to fix the ends of the bands. The automation level is low, the production efficiency is low, and the quality of products produced by manual operation is inconsistent, which easily leads to an increase in the defective rate of products. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a high-efficiency loop-forming mechanism for a webbing.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A high-efficiency loop-forming mechanism for webbing comprises a frame, on which a feeding mechanism for conveying webbing is mounted, a flipping mechanism is mounted on the frame at the front end of the feeding mechanism, a clamp controlled by a first driving mechanism is mounted on the rotating shaft of the flipping mechanism, the webbing leaves the front end of the feeding mechanism and hangs down between the clamps, and the clamps flip 180 degrees to loop the webbing.

[0006] The clamp comprises a static clamping block and a dynamic clamping block, wherein the static clamping block is fixedly mounted on a housing of the first driving mechanism, and the dynamic clamping block is fixedly mounted on a telescopic shaft of the first driving mechanism.

[0007] An ultrasonic cutting knife mold controlled by a second driving mechanism is installed on the frame, and an end surface of the ultrasonic cutting knife mold is flush with a side of the fixture away from the feeding mechanism.

[0008] A cutter controlled by a third driving mechanism is installed inside the feeding mechanism, and the cutter cooperates with the end surface of the ultrasonic cutter mold to cut the ribbon.

[0009] The frame is also provided with a material taking mechanism, which takes away the looped webbing.

[0010] The beneficial effects of the utility model are as follows: a feeding mechanism for conveying the webbing is installed on the frame of the utility model, a flipping mechanism is installed on the frame at the front end of the feeding mechanism, a clamp controlled by the first driving mechanism is installed on the rotating shaft of the flipping mechanism, during production, the webbing leaves from the front end of the feeding mechanism and hangs down between the clamps, the clamp flips 180°, and after the webbing is looped, the feeding mechanism continues to feed the webbing to a preset length, the length and quality of the products produced are consistent, the degree of automation is high, the production efficiency is high, and in conjunction with the material taking mechanism, it can be used for products including those containing or not containing thermal fuses, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is the structural diagram of the feeding mechanism;

[0014] Figure 3 It is a structural diagram of the flip mechanism. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0016] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0017] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0018] Reference Figure 1-3 A high-efficiency looping mechanism for webbing comprises a frame 5, on which a feeding mechanism 1 for conveying webbing is mounted, a flipping mechanism 2 is mounted on the frame 5 at the front end of the feeding mechanism 1, a clamp 4 controlled by a first driving mechanism 3 is mounted on the rotating shaft of the flipping mechanism 2, during production, the webbing leaves the front end of the feeding mechanism 1 and hangs down between the clamps 4, the clamps 4 flip 180°, and after the webbing is looped, the feeding mechanism continues to feed the webbing to a preset length, the length and quality of the products produced are consistent, the degree of automation is high, the production efficiency is high, and in conjunction with the material taking mechanism, it can be used for products including those containing or not containing thermal fuses, and has a wide range of applications.

[0019] The clamp 4 includes a static clamp block 41 and a dynamic clamp block 42 . The static clamp block 41 is fixedly mounted on the housing of the first driving mechanism 3 , and the dynamic clamp block 42 is fixedly mounted on the telescopic shaft of the first driving mechanism 3 .

[0020] An ultrasonic cutting die 7 controlled by a second driving mechanism 6 is mounted on the frame 5 , and an end surface of the ultrasonic cutting die 7 is flush with a side of the fixture 4 away from the feeding mechanism 1 .

[0021] A blowing mechanism is installed inside the feeding mechanism 1 , and the blowing mechanism is used to blow the drooping end of the ribbon toward the direction of the ultrasonic cutting knife mold 7 to ensure that the ribbon can enter between the static clamping block 41 and the dynamic clamping block 42 .

[0022] An alignment mechanism 12 controlled by a fourth drive mechanism 11 is installed below the feeding mechanism 1, and the alignment mechanism 12 consists of a static plate 13 and a dynamic plate 14. The inner side of the static plate 13 is aligned with one side of the webbing on the feeding mechanism 1. Before the clamp 4 clamps the webbing, the fourth drive mechanism 11 controls the dynamic plate 14 to move toward the static plate 13 until the width between the static plate 13 and the dynamic plate 14 is the same as the webbing width, so that the two sides of the webbing end are aligned with the two sides of the webbing body (the webbing body is the production material, and it only needs to be aligned with the webbing on the feeding mechanism 1), so as to avoid misalignment of the two ends of the webbing when forming a loop.

[0023] The top surface of the alignment mechanism 12 is lower than the bottom surface of the clamp 4 .

[0024] The feeding mechanism 1 is provided with a fifth driving mechanism, and the fourth driving mechanism 11 is provided on a telescopic shaft of the fifth driving mechanism, so that the alignment mechanism 12 can approach or move away from the clamp 4 .

[0025] A cutter 9 controlled by a third driving mechanism 8 is installed inside the feeding mechanism 1. The cutter 9 cooperates with the end surface of the ultrasonic cutter mold 7 to cut the ribbon. This process is an ultrasonic cutting process, which is a prior art.

[0026] The frame 5 is also provided with a material taking mechanism 10 for taking away the looped webbing.

[0027] The flipping mechanism 2 is a rotating cylinder or a motor; the first driving mechanism 3, the second driving mechanism 6, the third driving mechanism 8, the fourth driving mechanism 11, and the fifth driving mechanism are telescopic cylinders or linear motors.

[0028] The production process of this product:

[0029] In the initial state: the dynamic clamping block 42 is located on the side close to the feeding mechanism 1, the static clamping block 41 is located on the side close to the ultrasonic cutting knife mold 7, and the end face of the ultrasonic cutting knife mold 7 is flush with the inner end face of the static clamping block 41, and the alignment mechanism 12 is located directly below the clamp 4.

[0030] Production steps: the feeding mechanism 1 conveys the ribbon forward; at the same time, the blowing mechanism is started, so that the ribbon can always be attached to the end face of the ultrasonic cutting knife mold 7 and the inner end face of the static clamping block 41, until the end of the ribbon exceeds the bottom end of the static clamping block 41; the alignment mechanism 12 controlled by the fourth driving mechanism 11 aligns the two sides of the ribbon end with the two sides of the ribbon body; the clamp 4 controlled by the first driving mechanism 3 clamps the end of the ribbon; the flipping mechanism 2 controls the clamp 4 to flip 180° to make the ribbon loop; at the same time, the fifth driving mechanism and the second driving mechanism 6 are started to control the alignment mechanism 12 and the ultrasonic The cutting die 7 retreats to provide enough space for the flipping of the clamp 4; the feeding mechanism 1 continues to feed the material to the preset length of the ribbon; the second driving mechanism 6 starts to control the ultrasonic cutting die 7 to move toward the clamp direction of the clamp 4 until the end face of the ultrasonic cutting die 7 is flush with the inner end face of the movable clamp block 42; the third driving mechanism 8 controls the cutter 9 to move toward the direction of the ultrasonic cutting die 7, and cooperates with the ultrasonic cutting die 7 to cut off the other end of the ribbon (i.e., the end connected to the ribbon body); finally, the picking mechanism 10 clamps the head and tail ends of the ribbon toward the direction of the clamp 4.

[0031] When the produced webbing contains hot melt wire, the cutter 9 needs to cut off both ends of the looped webbing at the same time when cutting the webbing, so that the two ends of the looped webbing can be bonded to each other. The material taking mechanism 10 can be started before the cutter 9 or after the cutter 9. This kind of production needs to cut the front end of the looped webbing, so a small piece of waste will be generated.

[0032] When the produced webbing does not contain hot melt wire, the material taking mechanism 10 needs to first clamp the head and tail ends of the looped webbing, and then the cutter 9 cuts off the rear end of the looped webbing. This type of production can ensure that all the webbing is used for the looped webbing, avoiding the generation of waste. The same type of production is also applicable to webbing containing hot melt wire, and it is also sufficient to cut off the end of the looped webbing.

[0033] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-efficiency loop-forming mechanism for a webbing, comprising a frame (5), on which a feeding mechanism (1) for conveying the webbing is mounted, characterized in that A turning mechanism (2) is installed on the frame (5) at the front end of the feeding mechanism (1); a clamp (4) controlled by a first driving mechanism (3) is installed on the rotating shaft of the turning mechanism (2); the webbing leaves the front end of the feeding mechanism (1) and hangs down between the clamps (4); the clamps (4) turn over 180 degrees to make the webbing loop.

2. The high-efficiency loop forming mechanism for webbing according to claim 1, characterized in that The clamp (4) comprises a static clamp block (41) and a dynamic clamp block (42); the static clamp block (41) is fixedly mounted on a housing of the first drive mechanism (3); and the dynamic clamp block (42) is fixedly mounted on a telescopic shaft of the first drive mechanism (3).

3. The high-efficiency loop-forming mechanism for webbing according to claim 1 or 2, characterized in that An ultrasonic cutting die (7) controlled by a second driving mechanism (6) is mounted on the frame (5), and an end surface of the ultrasonic cutting die (7) is flush with a side of the fixture (4) away from the feeding mechanism (1).

4. The high-efficiency loop forming mechanism for webbing according to claim 3 is characterized in that A cutter (9) controlled by a third drive mechanism (8) is installed inside the feeding mechanism (1), and the cutter (9) cooperates with the end surface of the ultrasonic cutter mold (7) to cut the ribbon.

5. The high-efficiency loop-forming mechanism for webbing according to claim 4, characterized in that A material taking mechanism (10) is also mounted on the frame (5), and the material taking mechanism (10) takes away the looped webbing.

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