CN112111826A - Yarn knotter and yarn knotting method - Google Patents
Yarn knotter and yarn knotting method Download PDFInfo
- Publication number
- CN112111826A CN112111826A CN202010891707.1A CN202010891707A CN112111826A CN 112111826 A CN112111826 A CN 112111826A CN 202010891707 A CN202010891707 A CN 202010891707A CN 112111826 A CN112111826 A CN 112111826A
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- knotting
- yarn
- touch switch
- yarns
- air
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
Abstract
The invention provides a yarn knotter and a yarn knotting method, wherein the yarn knotter comprises a base, a plurality of knotting heads, an air supply device and a touch switch, wherein the knotting heads are distributed on the base at intervals along a first direction; the air supply device is electrically connected with the touch switch; the touch switch is characterized by further comprising a positioning clamp, wherein the positioning clamp is fixed at one end of the base and located on the extension line of the groove, and the touch switch is electrically connected with the positioning clamp. According to the invention, one end of the overlapping part of the yarns to be knotted and connected is fixed by the positioning clamp, the other end is held by a hand, and then the button is operated by a single hand to finish the knotting operation of the yarns, so that the labor is effectively saved, the knotting efficiency is improved, and the production cost is saved.
Description
Technical Field
The invention relates to the technical field of glass fiber production, in particular to a yarn knotter and a yarn knotting method.
Background
The glass fiber is an inorganic non-metallic material with excellent performance, has various varieties and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength; but has the disadvantages of brittleness and poor wear resistance. The glass fiber is prepared from six kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and boromagnesite by the processes of high-temperature melting, wire drawing, winding, weaving and the like, the diameter of each monofilament ranges from several micrometers to twenty micrometers, the monofilament is equivalent to 1/20-1/5 of one hair, and each bundle of fiber precursor consists of hundreds of even thousands of monofilaments. Glass fibers are commonly used in various areas of the national economy, such as reinforcing materials, electrical and thermal insulating materials, and circuit substrates in composite materials.
Glass fibers generally have continuity requirements when in use, and therefore, the yarn groups need to be knotted and connected according to requirements. At present, according to different requirements of subsequent use, the common methods mainly comprise: the yarn is connected by knotting two yarns, and the yarns are connected after being wound by an adhesive tape or a third yarn or knotted by an air knotter.
In the use of partial subsequent processes, the knotted part of the yarn can be required to be smoothly dispersed, otherwise, product flaws can be caused, and under the condition, the knotting of the yarn by the air knotter can meet the related production requirements.
The air knotter that currently uses is the hand-held type mainly, when carrying out the operation of knoing, mainly for artifical one side holds the yarn that needs the knot, and one side holds the air knotter and operates. According to production requirements, two or more sections of knotting operation are needed to be carried out on the yarns in the knotting connection process, and in this case, two workers are generally needed to cooperate to carry out the knotting operation: one person holds the yarns to be knotted and connected, and the other person holds the air knotter to perform knotting operation. The matching operation has low knotting efficiency, low production efficiency and high labor cost, and is not beneficial to saving the production cost.
Disclosure of Invention
The present invention is directed to solving the problems described above. It is an object of the present invention to provide a yarn knotter and a yarn knotting method that solve any one of the above problems. Particularly, the invention provides a yarn knotter and a yarn knotting method which are convenient to operate and high in knotting efficiency.
According to a first aspect of the invention, the invention provides a yarn knotter, which comprises a base, a plurality of knotting heads, an air supply device and a touch switch, wherein the knotting heads are distributed on the base at intervals along a first direction, a groove is formed in each knotting head in a penetrating mode along the first direction, an air inlet hole penetrating to the groove is formed in one side of each groove in a manner perpendicular to the first direction, and the air inlet hole is communicated with the air supply device; the air supply device is electrically connected with the touch switch;
the yarn knotter also comprises a positioning clamp, the positioning clamp is fixed at one end of the base and is positioned on the extension line of the groove, and the touch switch is electrically connected with the positioning clamp;
when the multifunctional knotting machine is used, the overlapped part of the yarns to be knotted is placed into the grooves of the knotting heads and the positioning clamps, the touch switch is started, one end of the yarns to be knotted is clamped and positioned, and meanwhile compressed air is introduced into the grooves to untwist the overlapped part of the yarns to be knotted and then twist and knot the overlapped part.
The positioning clamp comprises a cylinder, an electromagnetic valve and a positioning block arranged at one end of the base, the positioning block is positioned on the distribution extension lines of the knotting heads along a first direction, the operation direction of the cylinder is perpendicular to the first direction, and the output end of the cylinder presses the positioning block in an extending state; the cylinder with the air feeder is linked together, the solenoid valve is located the cylinder with on the gas circuit between the air feeder, just the solenoid valve with the touch switch electricity is connected.
Wherein, the cylinder is a double-shaft double-rod cylinder.
Wherein the width of the cavity of the groove is greater than the width of the inlet.
The yarn knotter further comprises a timer, and the timer is electrically connected with the touch switch.
The yarn knotter further comprises a power supply and a relay, wherein the relay is electrically connected with the power supply, the touch switch and the electromagnetic valve.
According to another aspect of the present invention, there is also provided a yarn knotting method implemented by the yarn knotter as described above, including:
overlapping the ends of two bundles of yarns to be knotted and connected, then placing the two bundles of yarns in the grooves of the knotting heads, placing one end of the overlapped part in the positioning clamp, and then triggering the touch switch; the touch switch controls the air supply device to supply air to the groove, and the overlapping part of the end parts of the two bundles of yarns to be knotted and connected is subjected to untwisting and twisting knotting.
According to the yarn knotter, one end of the overlapping part of yarns to be knotted and connected is fixed through the positioning clamp, the other end of the overlapping part is held by a hand, and then the button is operated by a single hand to finish yarn knotting operation, so that labor is effectively saved, knotting efficiency is improved, and production cost is saved; in addition, the production requirements of different knotting strengths can be met by adjusting the timing duration of the timer.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 schematically shows a structure of a yarn knotter of the present invention;
FIG. 2 is a schematic view of an exemplary knotting head configuration;
fig. 3 schematically shows a flow chart of a yarn knotting method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The invention designs a yarn knotter, in the knotting process, one end of the overlapping part of the yarns to be knotted can be clamped and fixed, so that the other end of the overlapping part of the yarns to be knotted can be held by one hand, and the other hand operates a button to realize the knotting connection of the yarns, so that the operation can be finished by one person, and the knotting efficiency is high; meanwhile, the knotting strength can be adjusted by adjusting the number and the distance of the knotting heads, the air supply pressure of the air supply device and the air supply duration, so that various different production requirements are met.
Hereinafter, a yarn knotter and a yarn knotting method according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view illustrating an embodiment of a yarn knotter of the present invention, and referring to fig. 1, the yarn knotter includes a base 1, a plurality of knotting heads 2 spaced apart from each other along a first direction on the base 1, an air supply device 3, and a touch switch 4. Fig. 2 shows a schematic structural diagram of a specific embodiment of the knotting head 2, and as shown in fig. 1 and fig. 2, the knotting head 2 is provided with grooves 21 penetrating in a first direction, that is, the grooves 21 of a plurality of knotting heads 2 are mutually penetrated. An air inlet 22 penetrating to the groove 21 is arranged on one side of the groove 21 and is vertical to the first direction, and the air inlet 22 is communicated with the air supply device 3; the gas supply device 3 is electrically connected with the touch switch 4. The touch switch 4 controls the air supply device 3 to supply air into the groove 21 through the air inlet 22, so that the yarn in the groove 21 can be untwisted and twisted and knotted.
In order to simplify the operation process and realize that the yarn knotter can be operated by a single person or a single hand, the yarn knotter also comprises a positioning clamp 5 which is used for fixing one end of the overlapping part of two bundles of yarns to be knotted and connected and the other end of the overlapping part of the two bundles of yarns to be knotted and connected can be held by the single hand. Specifically, the positioning clip 5 is fixed at one end of the base 1 and located on an extension line of the groove 21, and the touch switch 4 is electrically connected with the positioning clip 5. When the touch switch 4 is triggered, the positioning clamp 5 fixes one end of the overlapped part of the yarns, meanwhile, the air supply device 3 introduces compressed air into the groove 21 through the air inlet hole 22, and the compressed air is vertically used for releasing the yarns in the first direction, so that the yarns are untwisted and loosened by utilizing the aerodynamic principle and then are untwisted and knotted.
When the yarn knotter is used for knotting yarns, overlapping parts of the yarns to be knotted are placed in the grooves 21 of the knotting heads 2 and the positioning clips 5, wherein at least one end of the overlapping parts of the yarns to be knotted is positioned in the positioning clips 5; and then the touch switch 4 is started, the air supply device 3 starts to supply air, one end of the overlapping part of the yarn to be knotted is clamped and positioned through the positioning clamp 5, and compressed air is introduced into the groove 21 to untwist the overlapping part of the yarn to be knotted and then twist and knot the overlapping part.
In the yarn knotter of the present invention, the base 1 may be made of any material having a certain strength, for example, any one of stainless steel, cast iron, magnesium alloy, zinc, copper, and the like. The arrangement number of the knotting heads 2 can be 2 or more than 2, for example, 3, 4 or 5, and the like, and the interval between adjacent knotting heads 2 can be fixed or adjustable, that is, the position of the knotting head 2 on the base 1 can be set to be adjustable; in the embodiment shown in fig. 1, 3 equally spaced knotting heads 2 are arranged. In the actual use process, the number, the interval and the like of the knotting heads 2 can be set according to the requirements of the actual knotting number and length.
In this embodiment, the positioning clamp 5 includes an air cylinder 51, an electromagnetic valve 52 and a positioning block 53 disposed at one end of the base 1, wherein the positioning block 53 and the air cylinder 51 together realize clamping and positioning of one end of the overlapping portion of the yarns to be knotted. Specifically, the positioning block 53 is located on the distribution extension line of the plurality of knotting heads 2 along the first direction, the operation direction of the air cylinder 51 is perpendicular to the first direction, and the output end of the air cylinder 51 is pressed against the positioning block 53 in an extending state, so that the overlapping part of yarns to be knotted can be clamped. Further, the clamping surface between the positioning block 53 and the output end of the cylinder 51 is in the extension of the recess 21 of the knotting head 2.
The air cylinder 51 is communicated with the air supply device 3, the electromagnetic valve 52 is positioned on an air path between the air cylinder 51 and the air supply device 3, and the electromagnetic valve 52 is electrically connected with the touch switch 4. The touch switch 4 triggers the electromagnetic valve 52 to open or close, thereby controlling the air passage of the air supply device 3 to the air cylinder 51 to circulate or stop. After the yarn to be knotted is placed well, the touch switch 4 is triggered, the electromagnetic valve 52 is further opened, the air supply device 3 supplies air to the air cylinder 51, the output end of the air cylinder 51 extends out and is pushed to the positioning block 53, and the yarn to be knotted is clamped; meanwhile, the air supply device 3 introduces compressed air into the groove 21 through the air inlet hole 22, and untwists and then twists and knots the yarn part to be knotted, which is positioned in the groove 21.
In a specific embodiment, the cylinder 51 can be a double-shaft double-rod cylinder, so that the clamping stability of the yarn to be knotted is fully ensured, and the problem that the yarn to be knotted is unstable due to the fact that the yarn to be knotted is clamped and unstable due to the blowing of the high pressure of the compressed air introduced into the groove 21, and the knotting effect is influenced is avoided.
In order to fully ensure that compressed air rushing into the groove 21 can smoothly untwist and twist and knot the yarns to be knotted and avoid the yarns from being blown out of the groove 21, in the scheme, the width of the inner cavity 212 of the groove 21 is larger than that of the inlet 211. In the embodiment shown in fig. 2, the cavity 212 of the recess 21 is a cylindrical cavity, the width of the inlet 211 being smaller than the cylindrical diameter of the cavity 212.
In order to further simplify the operation and improve the knotting efficiency, the yarn knotter of the invention may further comprise a timer 6, and the timer 6 is electrically connected with the touch switch 4. The timer 6 is used for automatically timing untwisting and twisting time after the touch switch 4 is triggered and started, and triggering the touch switch 4 to be turned off when the timing reaches a preset time. Specifically, be provided with on time-recorder 6 and control the dial plate, can adjust when the single is tied a knot through the button on the adjustment time-recorder 6 to through the regulation and control of the long control realization of length of tying to tie knot intensity, the yarn of adaptation various different specifications and the requirement of the intensity of tying.
Further, the air pressure of the air supply device 3 of the yarn knotter can be adjusted.
Tests show that the twisting air pressure and the untwisting air pressure of the yarn knotting device are respectively adjusted to be 0.65MPa and 0.70MPa, the twisting time, the twisting delay time and the untwisting time are respectively set to be 0.09s, 0.69s and 0.50s, and when the adjusting gear is set to be three, the joint strength can reach 94% of the original yarn strength; the twisting air pressure of the yarn knotter is adjusted to be 0.65MPa, the untwisting air pressure is adjusted to be 0.70MPa, the twisting time, the twisting delay time and the untwisting time are respectively set to be 0.07s, 0.70s and 0.50s, and when the regulating gear is set to be four gears, the joint strength can reach 92% of the original yarn strength; and the smoothness and the flatness of the joint of the two can be well ensured. The shift position here is a shift position preset on the timer 6.
In addition, the yarn knotter also comprises a power supply 7 and a relay 8, wherein the relay 8 is electrically connected with the power supply 7, the touch switch 4 and the electromagnetic valve 52. The relay 8 is mainly used for controlling signals and completing control functions of starting, stopping, linkage and the like; the power supply 7 is used to supply power to each electronic device.
The invention also provides a yarn knotting method, which is realized by the yarn knotter, and specifically comprises the following steps:
overlapping the ends of two bundles of yarns to be knotted and connected, then placing the two bundles of yarns in the grooves 21 of the knotting heads 2, placing one end of the overlapped part in the positioning clamp 5, fixing the other end of the overlapped part of the two bundles of yarns by holding with a hand, and then triggering the touch switch 4; the touch switch 4 controls the air supply device 3 to supply air into the groove 21, and the overlapping parts of the ends of the two bundles of yarns to be knotted are untwisted and twisted to knot.
The specific implementation process after the touch switch 4 is triggered further includes: the touch switch 4 triggers the electromagnetic valve 52 to be opened, the air supply device 3 supplies air to the air cylinder 51, the output end of the air cylinder 51 is controlled to extend to the positioning block 53, and one end of the overlapping part of the two bundles of yarns to be knotted and connected in the positioning clamp 5 is clamped; meanwhile, the air supply device 3 also introduces compressed air into the groove 21 through the air inlet hole 22, untwists the yarns by using aerodynamics, and then twists and connects the yarns.
Further, when the touch switch 4 is triggered, the touch switch 4 triggers the timer 6 to start timing, and when the timer 6 reaches a preset time length, the touch switch 4 is triggered to turn off, so as to control the air supply device 3 to stop supplying air to the air cylinder 51 and the groove 21, thereby completing one knotting.
According to the yarn knotting method, the yarn knotter is used, one end of the overlapped part of the two bundles of yarns is fixed by one hand, the yarn knotting can be automatically completed by operating the touch switch by the other hand, the operation is simple, the yarn knotting can be completed by one person, the knotting efficiency is high, the knotting strength can be controlled by adjusting the timing duration of the timer 6, the different knotting requirements of yarns of different specifications are met, and the application range is wide.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A yarn knotter is characterized by comprising a base (1), a plurality of knotting heads (2) distributed on the base (1) at intervals along a first direction, an air supply device (3) and a touch switch (4), wherein a groove (21) penetrating along the first direction is formed in each knotting head (2), an air inlet hole (22) penetrating to the groove (21) is formed in one side of the groove (21) and perpendicular to the first direction, and the air inlet hole (22) is communicated with the air supply device (3); the gas supply device (3) is electrically connected with the touch switch (4);
the yarn knotter further comprises a positioning clamp (5), the positioning clamp (5) is fixed to one end of the base (1) and located on an extension line of the groove (21), and the touch switch (4) is electrically connected with the positioning clamp (5);
when the multifunctional knotting machine is used, the overlapping part of yarns to be knotted is placed to a plurality of the knotting head (2) in the groove (21) and in the positioning clamp (5), the touch switch (4) is started, one end of the yarns to be knotted is clamped and positioned, and compressed air is introduced into the groove (21) to untwist the overlapping part of the yarns to be knotted and then twist and knot.
2. The yarn knotter according to claim 1, characterized in that the positioning clamp (5) comprises a cylinder (51), a solenoid valve (52) and a positioning block (53) arranged at one end of the base (1), the positioning block (53) is arranged on the distribution extension lines of the knotting heads (2) along a first direction, the running direction of the cylinder (51) is perpendicular to the first direction, and the output end of the cylinder (51) is arranged to press the positioning block (53) in an extended state; the air cylinder (51) is communicated with the air supply device (3), the electromagnetic valve (52) is located on an air path between the air cylinder (51) and the air supply device (3), and the electromagnetic valve (52) is electrically connected with the touch switch (4).
3. Yarn knotter as in claim 2, characterized in that the cylinder (51) is a double-shaft double-rod cylinder.
4. Yarn knotter as in claim 1, characterized in that the width of the cavity (212) of the groove (21) is greater than the width of the inlet opening (211).
5. Yarn knotter as in claim 1, characterized in that it further comprises a timer (6), said timer (6) being electrically connected to said touch-sensitive switch (4).
6. Yarn knotter as in claim 1, characterized in that it further comprises a power source (7) and a relay (8), said relay (8) being electrically connected to said power source (7) and to said touch switch (4) and to said solenoid valve (52).
7. A yarn knotting method, which is realized by the yarn knotter as claimed in any one of claims 1 to 6, comprising:
overlapping the ends of two bundles of yarns to be knotted and connected, placing the two bundles of yarns into grooves (21) of a plurality of knotting heads (2), placing one end of the overlapped part into the positioning clamp (5), and then triggering the touch switch (4); the touch switch (4) controls the air supply device (3) to supply air into the groove (21), and the overlapping parts of the ends of the two bundles of yarns to be knotted are untwisted and then twisted and knotted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891707.1A CN112111826A (en) | 2020-08-27 | 2020-08-27 | Yarn knotter and yarn knotting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010891707.1A CN112111826A (en) | 2020-08-27 | 2020-08-27 | Yarn knotter and yarn knotting method |
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| CN112111826A true CN112111826A (en) | 2020-12-22 |
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| CN202010891707.1A Pending CN112111826A (en) | 2020-08-27 | 2020-08-27 | Yarn knotter and yarn knotting method |
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