Spun yarn guide tensioning device of warp knitting machine
By designing an inclined support rod tensioning wheel and an arc-shaped inner groove structure on the warp knitting machine, the yarn angle can be adjusted, solving the problem of yarn breakage during tensioning and achieving more stable yarn guidance and machine operation.
Patent Information
- Application Number
- CN202520153880.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The existing tensioning device of warp knitting machine is prone to causing the yarn angle to be too large when tensioning the yarn, which increases the friction and causes the yarn to break, affecting the stability of machine operation.
The design employs tensioning wheels at the ends of two inclined support rods. The yarn angle is adjusted through a vertical lifting mechanism to reduce the contact area and friction between the yarn and the tensioning wheels. Combined with an arc-shaped inner groove design, the yarn stability is maintained, and a self-locking motor is used to keep the tension in place.
It effectively reduces the possibility of yarn breakage and improves the operational stability of warp knitting machines and the reliability of yarn.
Smart Images
Figure CN223805239U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to weaving equipment technical field especially warp knitting machine's fine yarn guide tension device. BACKGROUND
[0002] For the tension device in weaving equipment, one is to clamp the yarn, apply certain pressure, thereby generating friction, realizing the tension of the yarn. Another is to change the position of the tension wheel by using the thrust, thereby changing the distance between the guide wheel and the tension wheel, realizing the tension of the yarn.
[0003] The purpose is to adopt the tension wheel to tension the yarn, generally only one tension wheel, which leads to the greater tension required when tensioning, the greater the angle of the yarn between the tension wheel and the guide wheel, especially for fine yarn, under the condition of requiring greater tension, easy to cause the fine yarn to break, affect the normal operation of the warp knitting machine. UTILITY MODEL CONTENTS
[0004] The utility model discloses a warp knitting machine's fine yarn guide tension device can effectively reduce the angle of fine yarn in the process of tensioning fine yarn, thereby avoiding the yarn breakage, and improving the operation stability of the warp knitting machine.
[0005] The utility model discloses a warp knitting machine's fine yarn guide tension device, including two guide wheels and the base setting between guide wheel, be provided with vertical lifting mechanism on the base, be provided with mounting block on the top of vertical lifting mechanism, be provided with support rod to the two sides of mounting block and tilt upwards, the upper end of support rod is provided with wheel seat, be provided with tension wheel on every wheel seat, and fine yarn enters warp knitting machine after passing guide wheel, tension wheel, guide wheel in proper order.
[0006] The vertical lifting mechanism includes two vertical direction guide columns setting on the base, the sliding block is slidably arranged on the guide column, the vertical direction thread sleeve is fixed on the sliding block, the mounting block is arranged on the top of the thread sleeve, the motor is arranged on the base below the thread sleeve, the output shaft of the motor is provided with a screw rod, the screw rod is vertically upwards, and the screw rod is connected with the thread sleeve.
[0007] A through hole is arranged on the base, and the diameter of the through hole is greater than the diameter of the motor, the motor is arranged in the through hole, and the motor and the inner wall of the through hole are fixed through the connecting rod.
[0008] The circumferential surface of the tension wheel is provided with an arc inner groove.
[0009] The warp knitting machine's spun yarn guide tensioning device disclosed by the utility model, by the two inclined support rod end tensioning wheels on the mounting block, the yarn is lifted as a whole from one end, thereby the angle of the yarn at the tensioning wheel can be reduced, thereby the yarn breaking condition can be reduced and the operation stability of the warp knitting machine is improved. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 Structure diagram of the utility model Figure 1 ;
[0011] Figure 2 Structure diagram of the utility model Figure 2 . DETAILED DESCRIPTION
[0012] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and the preferred embodiments.
[0013] Embodiment 1
[0014] As shown in Figure 1 , Figure 2 , the utility model discloses a warp knitting machine's spun yarn guide tensioning device, including two guide rollers 13 and the base 1 that sets up between the guide roller 13, be provided with vertical lifting mechanism on the base 1, be provided with mounting block 8 on the top of vertical lifting mechanism, be provided with support rod 9 to the two sides of mounting block 8 and tilt upwards, the upper end of support rod 9 is provided with wheel seat 10, be provided with tensioning wheel 11 on each wheel seat 10, and the spun yarn enters warp knitting machine after passing through guide roller 13, tensioning wheel 11, tensioning wheel 11, guide roller 13 in proper order.
[0015] In the actual working process of the tensioning mechanism, the yarn 12 contacts the tensioning wheel 11, and a certain friction force is generated between the two. Especially during long-term use, short fibers in the air can fall on the wheel shaft of the tensioning wheel 11, so the operation of the tensioning wheel 11 often encounters a large resistance. When the existing tensioning wheel 11 tensions the yarn 12, the angle of the yarn 12 on the tensioning wheel 11 is large, the contact area is large, so the friction force between the two is large. Especially for spun yarn, it is prone to breaking.
[0016] Therefore, in the embodiment, two support rods 9 are arranged on the mounting block 8, the support rods 9 are inclined upward and in the same plane, and the two support rods 9 are provided with tension pulleys 11 at the ends, and a gap exists between the two tension pulleys 11. In actual use, the yarn 12 passes through the lower side of the guide pulley 13, then passes through the upper side of the two tension pulleys 11, and then passes through the lower side of the other guide pulley 13 to enter the warp knitting machine. During the lifting process of the mounting block 8 and the tension pulley 11 driven by the vertical lifting mechanism, the yarn 12 can be tensioned. The gap between the two tension pulleys 11 causes the angle between the yarn 12 entering the tension pulley 11 and the yarn 12 output from the tension pulley 11 to increase, and the contact area between the yarn 12 and the tension pulley 11 decreases, which can effectively reduce the friction between the yarn 12 and the tension pulley 11. Especially for fine yarn, the contact area between the yarn 12 and the tension pulley 11 is reduced, which can effectively reduce the friction between the yarn 12 and the tension pulley 11, thereby avoiding the breakage of the fine yarn during the tensioning process and improving the running stability of the warp knitting machine. The tension pulley 11 and the wheel seat 10 are rotationally connected by a rotating shaft.
[0017] The vertical lifting mechanism includes two vertical guide columns 2 arranged on the base 1, a sliding block 3 is arranged on the guide column 2 in a sliding manner, a vertical threaded sleeve 4 is fixed on the sliding block 3, the mounting block 8 is arranged on the top of the threaded sleeve 4, a motor 6 is arranged on the base 1 below the threaded sleeve 4, a screw rod 7 is arranged on the output shaft of the motor 6, the screw rod 7 is vertically upward, and the screw rod 7 is connected with the threaded sleeve 4 in a threaded manner. Since the threaded sleeve 4 is fixed on the sliding block 3, and the sliding block 3 is connected with the guide column 2 in a sliding manner, and the screw rod 7 is connected with the threaded sleeve 4 in a threaded manner, that is, the internal thread of the threaded sleeve 4 is connected with the external thread of the screw rod 7, when the motor 6 drives the screw rod 7 to rotate, the screw rod 7 can drive the threaded sleeve 4 to rise and fall, thereby realizing the lifting of the mounting block 8 and the tension pulley 11, and adjusting the tension degree of the yarn 12. The motor 6 used is a motor 6 with self-locking function, so as to maintain the stability of the tensioning state.
[0018] A through hole 5 is arranged on the base 1, and the diameter of the through hole 5 is greater than the diameter of the motor 6. The motor 6 is arranged in the through hole 5, and is fixed by a connecting rod 14 between the motor 6 and the inner wall of the through hole 5. Since the motor 6 generates heat during use, in order to reduce the volume occupied by the base 1 and the motor 6, the through hole 5 is arranged in the base 1, and the motor 6 is arranged in the through hole 5, and the diameter of the through hole 5 is larger, that is, a gap exists between the side wall of the through hole 5 and the motor 6, so as to facilitate heat dissipation.
[0019] The circumferential surface of the tensioning wheel 11 is provided with an arc-shaped inner groove 15. Since the yarn 12 passes through the circumferential surface of the tensioning wheel 11 and the contact range is small, in order to maintain the reliability of the cooperation between the yarn 12 and the tensioning wheel 11, the arc-shaped inner groove 15 is arranged on the circumferential side wall of the tensioning wheel 11, and the arc-shaped inner groove 15 is annular. The yarn 12 is always in the arc-shaped inner groove 15 during operation, and the yarn 12 does not fall off the tensioning wheel 11, and the operation stability is higher.
[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate 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 do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "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 explicitly specified and limited.
[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be 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.
[0022] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "over" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0023] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any simplification, modification, equivalent change or modification of the above embodiments based on the technical essence of the present application still falls within the scope of the technical solution of the present application.
Claims
1. A thread tensioning device for a warp knitting machine, comprising two thread guides and a base arranged between the thread guides, characterized in that: A vertical lifting mechanism is arranged on the base, a mounting block is arranged on the top of the vertical lifting mechanism, support rods are arranged on both sides of the mounting block and inclined upward, the upper end of the support rods is provided with a wheel seat, a tension wheel is arranged on each wheel seat, and the fine yarn enters the warp knitting machine through a guide wheel, a tension wheel and a guide wheel in sequence.
2. A thread guide tension device for a warp knitting machine according to claim 1, characterized in that: The vertical lifting mechanism comprises two vertical guide columns arranged on the base, a sliding block is arranged on the guide columns in a sliding mode, a vertical threaded sleeve is fixed on the sliding block, the mounting block is arranged on the top of the threaded sleeve, a motor is arranged on the base below the threaded sleeve, a screw rod is arranged on the output shaft of the motor, the screw rod is vertically upward, and the screw rod is connected with the threaded sleeve in a matched mode.
3. A thread guide tension device for a warp knitting machine according to claim 2, characterised in that: A through hole is arranged on the base, the diameter of the through hole is larger than the diameter of the motor, the motor is arranged in the through hole, and the motor and the inner wall of the through hole are fixed through a connecting rod.
4. A thread guide tension device for a warp knitting machine according to claim 1, wherein: The circumferential surface of the tension wheel is provided with an arc-shaped inner groove.