Broken yarn stopping mechanism of weft accumulator and weft accumulator thereof

Abstract

The utility model discloses a broken yarn stopping mechanism of a weft accumulator and the weft accumulator thereof. The broken yarn stopping mechanism comprises a mounting plate, a tensioning wheel, a judging wheel, an elastic supporting piece and a touch pressure switch, wherein the number of the tensioning wheels is at least two, and the tensioning wheels are rotationally arranged on the mounting plate; the judgment wheel is located between two tensioning wheels and connected to the mounting plate through a broken yarn judgment assembly. When the yarn breakage judgment device is used, yarn wound by the weft accumulator is sequentially arranged between the tensioning wheels and the judgment wheel in a snake shape. According to the yarn breakage judging assembly, an installation adjusting block is arranged in a sliding mode in the direction of the central axis of a connecting line of two tensioning wheels matched with a judging wheel, and the judging wheel is connected with the installation adjusting block; the elastic supporting piece is connected with the mounting adjusting block and is used for resetting the sliding mounting adjusting block; the touch pressure switch is electrically connected with a motor of the weft accumulator and is arranged on a sliding path when the mounting adjusting block is reset; compared with the prior art, when the yarn is broken, the motor is controlled to stop running, and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of weft accumulators, in particular to a yarn-breaking stop mechanism of a weft accumulator and a weft accumulator thereof. Background Art

[0002] With the continuous development of the textile industry, my country is in a critical period of upgrading the textile industry. A large number of new textile enterprises have participated in the current fierce market competition by relying on scientific and technological progress, accelerating the pace of technological progress in the textile industry. The focus of competition is the adjustment of product structure and the improvement of product grade and quality. The fundamental shortcut to achieve product upgrading is to accelerate the pace of technological progress in the textile industry. In the process of technological progress, electronic weft storage devices have entered the textile industry and become the main components of textile machinery.

[0003] The weft feeder is used in textile machinery. It is a device for processing weft yarn. The weft yarn is wound on the weft feeder in an orderly manner for easy use. If the weft feeder runs too fast, it is very easy to break the yarn from the yarn ball, which seriously affects production efficiency, prolongs working hours, increases the workload of workers, and is time-consuming and labor-intensive. At the same time, if the broken yarn is not discovered in time, the motor will do useless work and waste electricity resources, which undoubtedly increases production costs and does not meet the requirements of energy-saving production. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a yarn-breaking stop mechanism for a weft storage device and a weft storage device thereof, so as to solve the problem in the prior art that the motor continues to run when the yarn breaks, which wastes power resources, increases production costs, and does not meet the requirements of energy-saving production.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the utility model adopts the following technical solution: a yarn breakage stop mechanism of a weft storage device, comprising:

[0006] Mounting plate;

[0007] Tensioning wheels, at least two of which are rotatably mounted on the mounting plate;

[0008] The judging wheel is located between the two tensioning wheels and is connected to the mounting plate through a yarn break judging component. When in use, the yarn wound by the weft storage device is arranged in a serpentine shape between the tensioning wheel and the judging wheel in sequence; wherein the yarn break judging component comprises:

[0009] An installation adjustment block is arranged to slide along the central axis of the line connecting the two tensioning wheels matched with the judgment wheel, and the judgment wheel is connected to the installation adjustment block;

[0010] An elastic support member, the elastic support member is connected to the installation adjustment block and is used to reset the installation adjustment block after sliding;

[0011] A touch-pressure switch is electrically connected to the motor of the weft storage device and is arranged on a sliding path when the adjustment block is installed and reset.

[0012] Technical principle:

[0013] During normal operation, the yarn is arranged in a serpentine shape between the tensioning wheel and the judging wheel. The judging wheel is moved away from the connecting line of the two matching tensioning wheels under the action of the yarn with a certain tensioning force, thereby driving the installation adjustment block to move away from the touch pressure switch, and the elastic support part is unfolded; when the yarn is disconnected, the tensioning force generated on the judgment wheel disappears, and the elastic support part contracts to make the installation adjustment block slide in the opposite direction and reset, until the installation adjustment block contacts the touch pressure switch to trigger the touch pressure switch to control the motor to stop running.

[0014] The second aspect of the utility model adopts the following technical solution: a weft storage device, including a motor and a yarn storage drum connected thereto, and also includes a yarn breaking stop mechanism of the weft storage device as described in the first aspect of the utility model.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] When the yarn-breaking stop mechanism of the weft storage device is in normal operation, the tensioning wheel is used to make the yarn have a certain tensioning force on the judgment wheel, and the installation adjustment block is installed to a certain distance away from the touch-pressure switch; when the yarn is broken, the elastic support member is used to make the installation adjustment block move in the opposite direction and reset to cooperate with the touch-pressure switch to control the motor to stop running; the structure is simple and the problem of wasting power resources caused by the motor still running when the yarn is broken is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the state of a weft storage device in a winding process in an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the status of the yarn break judgment component on the mounting plate in the state.

[0019] The figure marks in the drawings of the specification include: mounting plate 1, tensioning wheel 2, judgment wheel 3, yarn break judgment component 4, mounting adjustment block 41, elastic support 42, touch pressure switch 43, mounting block 44, slide groove 45, limit block 46, trigger rod 47, spline groove 48, motor 5, yarn storage drum 6, base 7, wire fixing structure 8, connecting column 81, and clamping part 82. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below through specific implementation methods:

[0021] like Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes a yarn-breaking stop mechanism for a weft storage device, comprising a mounting plate 1, a tensioning wheel 2 and a judging wheel 3; wherein, there are at least two tensioning wheels 2 and both are rotatably arranged on the mounting plate 1; the judging wheel 3 is located between two of the tensioning wheels 2 and is connected to the mounting plate 1 through a yarn-breaking judging component 4, and when in use, the yarn wound up by the weft storage device is arranged in a serpentine shape between the tensioning wheel 2 and the judging wheel 3 in sequence; wherein, the yarn-breaking judging component 4 comprises an installation adjustment block 41, an elastic support member 42 and a touch-pressure switch 43, the installation adjustment block 41 is arranged to slide along the central axis direction of the connecting line of the two tensioning wheels 2 matched with the judging wheel 3, and the judging wheel 3 is connected to the installation adjustment block 41; the elastic support member 42 is connected to the installation adjustment block 41 and is used to reset the installation adjustment block 41 after sliding; the touch-pressure switch 43 is electrically connected to the motor 5 of the weft storage device and is arranged on the sliding path when the installation adjustment block 41 is reset.

[0022] The yarn breakage stop mechanism is used in conjunction with a weft storage device. When the motor 5 in the weft storage device is running to drive the yarn storage drum 6 to rotate, the yarn storage drum 6 is winding up the yarn. The yarn is arranged in a serpentine shape between the tensioning wheel 2 and the judgment wheel 3. The judgment wheel 3 is acted upon by the yarn with a certain tensioning force so that the judgment wheel 3 moves away from the connecting line of the two matching tensioning wheels 2, thereby driving the installation adjustment block 41 to move away from the touch pressure switch 43, the elastic support member 42 is unfolded, and the yarn storage drum 6 is used to stably wind up the yarn. When the yarn is broken, the tensioning force generated on the judgment wheel 3 disappears, and the elastic support member 42 contracts to make the installation adjustment block 41 slide in the opposite direction and reset, until the installation adjustment block 41 contacts the touch pressure switch 43 to trigger the touch pressure switch 43 to control the motor 5 to stop running.

[0023] In this embodiment, there are two tensioning wheels 2 and they are rotatably arranged on the same horizontal line at the front side of the mounting plate 1 .

[0024] In order to better understand this solution, the structure of the yarn breakage judgment component 4 and the like will be further optimized below.

[0025] like Figure 2 As shown, according to another embodiment of the utility model, a yarn breakage stop mechanism of a weft storage device, wherein the yarn breakage judgment component 4 also includes a mounting block 44, the mounting block 44 is connected to the mounting plate 1 and has a slide groove 45 thereon along the sliding direction of the mounting adjustment block 41, the mounting adjustment block 41 is slidably set in the slide groove 45 and the elastic support member 42 and the touch pressure switch 43 are both set in the slide groove 45.

[0026] In this embodiment, the mounting block 44 serves as the supporting body of the yarn break judgment component 4, and the slide groove 45 guides the sliding of the mounting adjustment block 41 to improve the sliding stability of the mounting adjustment block 41; the elastic support member 42 can be a spring, which is used for sliding reset of the mounting adjustment block 41, so that the mounting adjustment block 41 triggers the touch pressure switch 43 to control the motor 5 to stop running.

[0027] Based on the above scheme:

[0028] The yarn break judgment component 4 also includes a limit block 46 and a trigger rod 47; wherein the limit block 46 is fixedly arranged in the slide groove 45 and is located between the touch-pressure switch 43 and the installation adjustment block 41; one end of the trigger rod 47 is fixedly connected to the installation adjustment block 41 and the other end thereof is freely passed through the limit block 46 to trigger the touch-pressure switch 43.

[0029] When the yarn is broken, the tension generated on the judgment wheel 3 disappears, and the elastic support 42 contracts to reset the installation adjustment block 41 until the installation adjustment block 41 is against the limit block 46. At this time, the installation adjustment block 41 just triggers the touch pressure switch 43 through the trigger rod 47 to control the motor 5 to stop running; at the same time, the trigger rod 47 is slidably connected to the limit block 46 to further improve the sliding stability of the installation adjustment block 41.

[0030] The mounting plate 1 is provided with a mounting groove, and the mounting block 44 is locked and fixed after being inserted into the mounting groove; specifically, the mounting block 44 is provided with two connecting ears arranged opposite to each other, and after the mounting block 44 is inserted into the mounting groove, the two connecting ears are attached to the outer wall of the mounting plate 1, and the two connecting ears are fixedly connected to the mounting plate 1 by screws, so as to facilitate the installation or disassembly of the yarn breaking judgment component 4.

[0031] A spline groove 48 may be provided on the installation and adjustment block 41, and the connecting shaft of the judging wheel 3 is spline-connected in the spline groove 48, so as to facilitate the installation or disassembly between the judging wheel 3 and the yarn break judging component 4.

[0032] like Figure 1 As shown, according to another embodiment of the utility model, the weft storage device comprises a motor 5 and a yarn storage drum 6 connected thereto, and also comprises a yarn breaking stop mechanism of the weft storage device described in any of the above embodiments.

[0033] When the motor 5 in the weft storage device runs to drive the yarn storage drum 6 to rotate, the yarn storage drum 6 is used to wind up the yarn. The yarn is arranged in a serpentine shape between the tensioning wheel 2 and the judging wheel 3. The judging wheel 3 is acted upon by the yarn with a certain tensioning force so that the judging wheel 3 moves away from the connecting line of the two matching tensioning wheels 2, thereby driving the installation adjustment block 41 to move away from the touch-pressure switch 43, and the elastic support member 42 is unfolded, so that the yarn storage drum 6 can stably wind up the yarn. When the yarn is disconnected, the tensioning force generated on the judging wheel 3 disappears, and the elastic support member 42 contracts to make the installation adjustment block 41 slide in the opposite direction and reset, until the installation adjustment block 41 is against the limit block 46, and the installation adjustment block 41 triggers the touch-pressure switch 43 through the trigger rod 47 to control the motor 5 to stop running.

[0034] In this embodiment, the motor 5 and the mounting plate 1 are both fixedly mounted on the base 7 .

[0035] Furthermore, the yarn storage drum 6 is provided with a wire fixing structure 8 for fixing the initial end of the yarn when winding. The wire fixing structure 8 can quickly and stably fix the initial end of the yarn when winding, and then the motor 5 is operated to drive the yarn storage drum 6 to rotate and wind the yarn. The yarn storage drum 6 is an existing structure, and the wire fixing structure 8 is fixed inside the yarn storage drum 6, and the wire fixing structure 8 will not hinder the winding of the yarn.

[0036] Specifically, the thread fixing structure 8 includes a connecting column 81, one end of which is fixedly connected to the yarn storage drum 6 and the other end of which is threadedly connected to a pressing portion 82 for pressing and fixing the initial end of the yarn when winding. The pressing portion 82 is specifically "T"-shaped. When in use, the initial end of the yarn is wound around the end of the pressing portion 82 connected to the connecting column 81, and then the pressing portion 82 is rotated to screw the end connected to the connecting column 81 into the connecting column 81, and the initial end of the yarn is fixedly clamped between the pressing portion 82 and the connecting column 81.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A yarn breakage stop mechanism for a weft storage device, characterized in that: include: Mounting plate; Tensioning wheels, at least two of which are rotatably mounted on the mounting plate; The judging wheel is located between the two tensioning wheels and is connected to the mounting plate through a yarn break judging component. When in use, the yarn wound by the weft storage device is arranged in a serpentine shape between the tensioning wheel and the judging wheel in sequence; wherein the yarn break judging component comprises: An installation adjustment block is arranged to slide along the central axis of the line connecting the two tensioning wheels matched with the judgment wheel, and the judgment wheel is connected to the installation adjustment block; An elastic support member, the elastic support member is connected to the installation adjustment block and is used to reset the installation adjustment block after sliding; A touch-pressure switch is electrically connected to the motor of the weft storage device and is arranged on a sliding path when the adjustment block is installed and reset.

2. The yarn breakage stop mechanism of the weft storage device according to claim 1, characterized in that: The yarn breakage judgment component also includes: The mounting block is connected to the mounting plate and has a slide groove along the sliding direction of the mounting adjustment block. The mounting adjustment block is slidably arranged in the slide groove and the elastic support member and the touch pressure switch are both arranged in the slide groove.

3. The yarn breakage stop mechanism of the weft storage device according to claim 2, characterized in that: The yarn breakage judgment component also includes: A limit block, which is fixedly arranged in the slide slot and located between the touch-pressure switch and the mounting adjustment block; A trigger rod, one end of which is fixedly connected to the mounting adjustment block and the other end of which freely passes through the limit block and is used to trigger the touch-pressure switch.

4. The yarn breakage stopping mechanism of the weft storage device according to claim 2 or 3, characterized in that: The mounting plate is provided with a mounting groove, and the mounting block is locked and fixed after being embedded in the mounting groove.

5. A weft storage device, comprising a motor and a yarn storage drum connected thereto, characterized in that: It also includes a yarn breaking stop mechanism for the weft storage device as described in any one of claims 1-4.

6. A weft feeder according to claim 5, characterized in that: The yarn storage drum is provided with a yarn fixing structure for fixing the initial end of the yarn when it is wound up.

7. A weft feeder according to claim 6, characterized in that: The fixed line structure comprises: A connecting column, one end of which is fixedly connected to the yarn storage drum and the other end of which is threadedly connected to a clamping portion for clamping and fixing the initial end of the yarn when it is wound.

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