A bobbin winder nozzle

Abstract

The utility model relates to a bobbin winder tube yarn suction nozzle. The suction nozzle mouth inside air passage top of tube yarn suction nozzle is provided with air pressure shunt rib, the upper edge of suction nozzle mouth is installed with stainless steel comb, and the stainless steel comb is bent to the air passage inside of tube yarn suction nozzle, the top plate of suction nozzle mouth is equipped with silica gel pad, the silica gel pad is projected to the outside of suction nozzle mouth, and the bottom of silica gel pad is equipped with a plurality of soft nail structures, the inner side corner of middle section is equipped with inverted V type stainless steel wire, and the top of one side edge is projected to the air passage inner wall of tube yarn suction nozzle. The utility model has the advantages of: through the soft nail structure on silica gel pad and the slight vibration contact of yarn drum, the broken yarn head is quickly captured, makes it separate from yarn drum, and the success rate of suction yarn head is improved, through the air pressure shunt rib distribution on the suction nozzle mouth air passage top of tube yarn suction nozzle, the air pressure at suction nozzle mouth is as uniform as possible, the air pressure at both ends of suction nozzle mouth is increased, and the adsorption force at both ends is enhanced, the inverted V type stainless steel wire is used to protect the air passage inner side wall, and the production abnormal state of hanging yarn and accumulated yarn is avoided.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a yarn suction nozzle for a winding machine. Background Technology

[0002] Automatic winding machines are high-end equipment in the textile machinery field that integrates mechanical, electrical, instrumentation, and pneumatic technologies. They are mainly used to wind bobbins into knotless bobbins and remove yarn defects through core components such as electronic yarn clearers and tension devices. They are suitable for processing various fibers, including cotton, wool, and synthetic fibers. Automatic winding machines connect fine yarn bobbins and wind them according to the customer's required length and weight. During the winding process, yarn defects such as knots generated in the previous production process are detected, identified, and removed by the electronic yarn clearer. After the fine yarn bobbins are unwound, the single-spindle CPU of the automatic winding machine executes a knotting cycle, performing up and down head-finding actions. The yarn end on the bobbin needs to be successfully found by the bobbin suction nozzle before entering the electronic yarn clearer for detection. Then, it enters the air twister to knot with the bobbin yarn end successfully found by the bobbin suction nozzle. After successful knotting, winding continues until the set length and weight are reached. The success rate of the up suction head finding during the knotting cycle is a crucial factor in improving the production efficiency and high output of automatic winding machines.

[0003] In the prior art, Chinese patent 202422402206.9 discloses a comb tooth and a yarn suction nozzle for an automatic winding machine. It has stainless steel suction nozzle comb teeth installed at the suction nozzle opening, and microparticles are uniformly sprayed on the outer surface of the edge of the suction nozzle comb teeth. During the yarn suction process, the rough surface generated by the microparticles is used to catch the fuzz on the yarn head, and the yarn head that is tangled with the fuzz on the surface of the bobbin is separated from the bobbin surface and captured by the yarn suction nozzle that generates negative pressure air, thereby improving the success rate of yarn capture in one pass. However, its suction nozzle opening is a flat rectangular shape, and the air pressure at the suction nozzle opening is not uniform. The air pressure at both ends of the suction nozzle opening is lower, and the suction force at both ends is weaker, which will cause abnormal production conditions such as yarn suction failure. Chinese Patent 202123003728.4 discloses a device for quickly capturing yarn ends. It features a groove in the center of the suction nozzle near the nozzle opening, increasing the negative pressure in the middle and making it easier to capture the yarn ends. However, the negative pressure on both sides of the nozzle opening is low, making it difficult to attract the yarn ends, resulting in a narrow suction area and reduced capture efficiency. Furthermore, in the yarn suction nozzles disclosed in the above two patents, when the yarn is captured and enters the internal air passage, it slides along the inner wall of the air passage. Long-term use will cause wear to the inner wall of the air passage, requiring improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a yarn suction nozzle for a winding machine, which can solve the problems of low negative pressure at the nozzle opening, making it difficult to capture yarn ends, high negative pressure in the middle of the nozzle opening and low negative pressure on both sides, resulting in a narrow adsorption surface, low capture efficiency, and wear on the bottom surface of the internal space of the nozzle after long-term use of yarn.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: the middle section of the yarn feed nozzle is arc-shaped, and the width of the middle section to the nozzle opening area gradually increases. A yarn threading tube is provided at the end of the yarn feed nozzle away from the nozzle opening. The nozzle opening, the middle section, and the yarn threading tube are internally connected to form an air passage. The feature is that: several air pressure diversion ribs are distributed on the inner top of the nozzle opening of the yarn feed nozzle. The air pressure diversion ribs are located above the air passage inside the nozzle opening. The width and height of each air pressure diversion rib gradually increase from the middle section to the nozzle opening. The side with the smaller bending radius of the overall structure formed by the nozzle opening and the middle section is designated as the inner bending side, and the side with the larger bending radius is designated as the outer bending side. The length of the several air pressure diversion ribs arranged from the outer bending side to the inner bending side gradually decreases, and the several air pressure diversion ribs are all inclined towards the center of the overall structure formed by the nozzle opening and the middle section. The intersection points of the extension lines of the several air pressure diversion ribs from the nozzle opening to the middle section are multiple different intersection points. A stainless steel comb is installed on the upper edge of the suction nozzle. The stainless steel comb bends into the air passage of the yarn tube suction nozzle, and the comb teeth of the stainless steel comb are located inside the suction nozzle. A silicone pad is installed on the top plate of the suction nozzle. The silicone pad is located outside the stainless steel comb and protrudes from the outside of the suction nozzle. The outer end of the silicone pad is integrally provided with wavy comb teeth, and the bottom of the silicone pad is provided with several rows of soft nail structures. At least one mounting block is provided at the inner bend corner of the middle section of the yarn feed nozzle. The mounting block has a slot that communicates with the internal air passage of the yarn feed nozzle. An inverted V-shaped stainless steel wire is fixed in the slot, and one side of the stainless steel wire protrudes from the inner wall of the air passage of the yarn feed nozzle.

[0006] Furthermore, there are two mounting blocks, which are respectively located on both sides of the curved apex of the middle section of the yarn suction nozzle. The mounting block closer to the nozzle opening has two empty slots, and the mounting block farther from the nozzle opening has one empty slot.

[0007] Furthermore, the top plate of the suction mouth of the yarn feeder is fixed to the stainless steel comb by screws. The stainless steel comb includes a first steel plate, a second steel plate, and a third steel plate. The first steel plate is located at the top of the top plate of the suction mouth. The second steel plate is bent and disposed on the side of the top plate of the suction mouth. The third steel plate is bent and disposed inside the suction mouth. The end of the third steel plate away from the second steel plate is connected to the comb teeth.

[0008] Furthermore, the end of the silicone pad away from the wavy comb teeth is connected to a mounting plate. The top surface of the mounting plate is set lower than the silicone pad. The mounting plate is pressed and fixed to the top plate of the suction mouth of the yarn feeder by a fixing plate. The fixing plate, the mounting plate and the top plate of the suction mouth are connected and fixed by bolts. The bottom of the fixing plate on the side away from the silicone pad is connected to a locking block, and the top plate of the suction nozzle is provided with a slot corresponding to the position of the locking block. The locking block is locked in the slot to limit the position of the fixing plate.

[0009] Furthermore, the suction nozzle of the yarn tube has side baffles extending from both sides of the suction opening, and the side baffles are provided on both sides of the mounting plate and the fixing plate; The side baffles are connected by a rear baffle strip, which is integrally set on the top of the top plate of the suction nozzle, and the rear baffle strip is located on the outer side of the fixed plate away from the silicone pad.

[0010] Furthermore, the top surface of both the middle section and the nozzle opening is a transparent plate.

[0011] With the above structure, the advantages of this utility model are: by contacting the several rows of soft nails on the silicone pad with the slight vibration of the yarn tube, the broken yarn ends are quickly captured and detached from the yarn tube, further improving the success rate of picking up the yarn ends. By distributing air pressure diversion ribs above the air passage inside the suction mouth of the yarn feeder, and as the width of the area from the middle section to the suction mouth gradually increases, the width and height of the air pressure diversion ribs also gradually increase from the middle section to the suction mouth. The length of several air pressure diversion ribs arranged from the outer curved side to the inner curved side gradually decreases, so that the air pressure at the suction mouth is as uniform as possible. The air pressure at both ends of the suction mouth is increased, which enhances the suction force at both ends and makes it easier to capture the yarn end. This optimizes the abnormal production situation of yarn suction failure caused by the low air pressure at both ends of ordinary suction mouths. The inverted V-shaped stainless steel wire on the inner curved side of the air passage in the middle section of the yarn feeder protects the inner wall of the air passage. When the yarn is captured and enters the air passage inside the yarn feeder, the yarn slides along the inner wall of the air passage and along the top of the stainless steel wire. This avoids wear on the inner wall of the corner of the air passage inside the feeder during long-term use, which could lead to abnormal production conditions such as yarn snagging and accumulation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the inner top structure of the suction nozzle of this utility model; Figure 3 This is a schematic diagram of the installation structure of the stainless steel comb and silicone pad of this utility model. Figure 4 This is a schematic diagram of the top structure of the suction nozzle of this utility model; Figures 5-6 This is a schematic diagram of the mounting block and stainless steel wire mounting structure of the yarn suction nozzle of this utility model. Figure 7 This is a top view of the present invention. Detailed Implementation

[0013] 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 the accompanying drawings and specific embodiments. The following embodiments can enable those skilled in the art to more fully understand this utility model, but do not limit the present utility model to the scope of the described embodiments.

[0014] The specific implementation method adopts the following technical solution: (e.g.) Figure 1 As shown, the middle section 1 of the yarn package suction nozzle is arc-shaped, and the width of the area from the middle section 1 to the suction nozzle opening 2 gradually increases. The top surfaces of both the middle section 1 and the suction nozzle opening 2 are transparent plates, facilitating observation of the internal conditions. A yarn-passing tube 3 is located at the end of the yarn package suction nozzle furthest from the suction nozzle opening 2. The yarn-passing tube 3, the middle section 1, and the inside of the suction nozzle opening 2 are connected to form a negative pressure air passage. After the yarn end on the bobbin is successfully located by the yarn package suction nozzle, it passes through the inside of the yarn package suction nozzle and is brought to the electronic yarn clearer for detection. Then, it enters the air twister to knot with the yarn end successfully located by the yarn package suction nozzle.

[0015] like Figure 2 and Figure 7 As shown, several air pressure diversion ribs 21 are distributed on the inner top of the suction port 2 of the yarn feeder. The air pressure diversion ribs 21 are located above the air passage inside the suction port 2. The width and height of each air pressure diversion rib 21 gradually increase from the middle section 1 to the suction port 2. The side with the smaller bending radius of the overall structure formed by the suction port 2 and the middle section 1 is designated as the inner bending side, and the side with the larger bending radius is designated as the outer bending side. The length of the several air pressure diversion ribs 21 arranged from the outer bending side to the inner bending side gradually decreases, and the several air pressure diversion ribs 21 are all inclined towards the center of the overall structure formed by the suction port 2 and the middle section 1. The intersection points of the extension lines of the several air pressure diversion ribs 21 from the suction port 2 to the middle section 1 are different multiple intersection points, so that the air pressure at the suction port 2 is as uniform as possible. The air pressure at both ends of the suction port 2 is increased, which enhances the suction force at both ends and makes it easier to capture the yarn end. This optimizes the abnormal production situation of yarn suction failure caused by the low air pressure at both ends of ordinary suction ports.

[0016] A stainless steel comb 4 is installed on the upper edge of the suction port 2. The top plate of the suction port 2 of the yarn tube suction nozzle is connected and fixed to the stainless steel comb 4 by screws. Figure 3As shown, the stainless steel comb 4 includes a first steel plate 41, a second steel plate 42, and a third steel plate 43. The first steel plate 41 is located at the top of the top plate of the suction nozzle 2. The second steel plate 42 is bent with the first steel plate 41 and is located on the side of the top plate of the suction nozzle 2. The third steel plate 43 is bent with the second steel plate 42 and is located in the air passage of the suction nozzle 2. The end of the third steel plate 43 away from the second steel plate 42 is connected to the comb teeth. The stainless steel comb 4 is bent into the inside of the yarn tube suction nozzle. The comb teeth of the stainless steel comb 4 are located inside the suction nozzle 2. The stainless steel comb 4 can guide the yarn into the inside of the yarn tube suction nozzle.

[0017] A silicone pad 5 is also installed on the top plate of the suction port 2. The silicone pad 5 is located outside the stainless steel comb 4 and protrudes from the outside of the suction port 2. The outer end of the silicone pad 5 is integrally provided with wavy comb teeth, and the bottom of the silicone pad 5 is provided with several rows of soft nail structures 51. In this embodiment, there are three rows of soft nail structures 51. By contacting the yarn tube with the slight vibration of the several rows of soft nail structures on the silicone pad, the broken yarn ends are quickly captured and detached from the yarn tube, further improving the success rate of picking up the yarn ends.

[0018] A mounting plate 6 is integrally connected to the end of the silicone pad 5 away from the wavy comb teeth. The top surface of the mounting plate 6 is lower than that of the silicone pad 5. The mounting plate 6 is pressed and fixed to the top plate of the suction port 2 of the yarn feed nozzle by a fixing plate 7. The fixing plate 7, the mounting plate 6, and the top plate of the suction port 2 are fixed together by bolts. A locking block 71 is connected to the bottom of the side of the fixing plate 7 away from the silicone pad 5. Figure 4 As shown, the top plate of the suction port 2 is provided with a slot 22 corresponding to the position of the locking block 71. The locking block 71 is locked in the slot 22 to limit the position of the fixing plate 7, so that the fixing plate 7 can be connected to the mounting plate 6 and the top plate of the suction port 2 more quickly.

[0019] Side baffles 23 extend from both sides of the suction opening 2 of the yarn tube suction nozzle. The side baffles 23 are located on both sides of the mounting plate 6 and the fixing plate 7, and can block and limit the two sides of the mounting plate 6 and the fixing plate 7. The two side baffles 23 are connected by a rear baffle 24. The rear baffle 24 is integrally set on the top of the top plate of the suction opening 2, and the rear baffle 24 is located on the outer side of the end of the fixing plate 7 away from the silicone pad 5. The rear baffle 24 can block and limit the end of the fixing plate 7.

[0020] like Figure 5 and Figure 6As shown, at least one mounting block 8 is provided at the inner bend corner of the middle section 1 of the yarn feed nozzle. In this embodiment, there are two mounting blocks 8, which are respectively located on both sides of the bend apex of the middle section 1 of the yarn feed nozzle. The mounting block 8 is provided with a slot 81 that communicates with the internal air passage of the yarn feed nozzle. Two slots 81 are provided on the mounting block 8 near the nozzle opening 2, and one slot 81 is provided on the mounting block 8 away from the nozzle opening 2. An inverted V-shaped stainless steel wire 82 is fixed in the slot 81. The top of one side of the stainless steel wire 82 protrudes from the inner wall of the air passage of the yarn feed nozzle. The stainless steel wire 82 can protect the inner wall of the yarn feed nozzle. When the yarn is captured and enters the inside of the yarn feed nozzle, the yarn slides along one side of the internal space of the nozzle and slides along the top of the stainless steel wire, avoiding wear on the bottom surface of the internal space of the nozzle after long-term use.

[0021] Working principle: Several air pressure diversion ribs 21 are distributed above the air passage of the suction port 2 of the yarn feeder. As the width of the area from the middle section 1 to the suction port 2 gradually increases, the width and height of the air pressure diversion ribs 21 also gradually increase from the middle section 1 to the suction port 2. The length of the several air pressure diversion ribs 21 arranged from the outer curved side to the inner curved side gradually decreases, so that the air pressure at the suction port 2 is as uniform as possible. The air pressure at both ends of the suction port 2 is increased, which enhances the suction force at both ends and makes it easier to capture the yarn end. This optimizes the abnormal production situation of yarn suction failure caused by the low air pressure at both ends of ordinary suction nozzles. By contacting the yarn bobbin with the slight vibration of the soft nail structure 51 on the silicone pad 5, the broken yarn ends are quickly captured and detached from the yarn bobbin, further improving the success rate of yarn capture. After successful yarn capture, the yarn enters the internal air passage of the yarn bobbin suction nozzle. The combination of the air pressure diverting rib 21, stainless steel comb 4, and silicone pad 5 improves the success rate of yarn capture in one pass. The inverted V-shaped stainless steel wire 82 on the inner side of the internal channel of the middle section 1 of the yarn bobbin suction nozzle protects the inner wall of the yarn bobbin suction nozzle. When the yarn is captured and enters the inside of the yarn bobbin suction nozzle, the yarn slides along one side of the internal space of the suction nozzle and along the top of the stainless steel wire. This avoids wear on the inner wall of the corner of the internal air passage of the suction nozzle during long-term use, which could lead to abnormal production conditions such as yarn snagging and accumulation.

[0022] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A yarn feeder for a winding machine, wherein the middle section of the feeder is arc-shaped, and the width of the middle section gradually increases towards the feeder opening; a yarn threading tube is provided at the end of the feeder away from the feeder opening; and the feeder opening, the middle section, and the yarn threading tube are internally connected to form an air passage; characterized in that: The inner top of the suction nozzle of the yarn tube has several air pressure diversion ribs. The air pressure diversion ribs are located above the air passage inside the suction nozzle. The width and height of each air pressure diversion rib gradually increase from the middle section to the suction nozzle. The side with the smaller bending radius of the overall structure formed by the suction nozzle and the middle section is defined as the inner bending side, and the side with the larger bending radius is defined as the outer bending side. The length of the air pressure diversion ribs arranged from the outer bending side to the inner bending side gradually decreases, and the air pressure diversion ribs are all inclined towards the center of the overall structure formed by the suction nozzle and the middle section. The intersection points of the extension lines of the air pressure diversion ribs from the suction nozzle to the middle section are multiple different intersection points. A stainless steel comb is installed on the upper edge of the suction nozzle. The stainless steel comb bends into the air passage of the yarn tube suction nozzle, and the comb teeth of the stainless steel comb are located inside the suction nozzle. A silicone pad is installed on the top plate of the suction nozzle. The silicone pad is located outside the stainless steel comb and protrudes from the outside of the suction nozzle. The outer end of the silicone pad is integrally provided with wavy comb teeth, and the bottom of the silicone pad is provided with several rows of soft nail structures. At least one mounting block is provided at the inner bend corner of the middle section of the yarn feed nozzle. The mounting block has a slot that communicates with the internal air passage of the yarn feed nozzle. An inverted V-shaped stainless steel wire is fixed in the slot, and one side of the stainless steel wire protrudes from the inner wall of the air passage of the yarn feed nozzle.

2. The yarn suction nozzle for a winding machine according to claim 1, characterized in that: The mounting block is provided in two parts, which are respectively located on both sides of the curved apex of the middle section of the yarn suction nozzle. The mounting block closer to the suction nozzle opening has two empty slots, and the mounting block farther away from the suction nozzle opening has one empty slot.

3. The yarn suction nozzle for a winding machine according to claim 1, characterized in that: The top plate of the suction mouth of the yarn tube suction nozzle is connected and fixed to the stainless steel comb by screws. The stainless steel comb includes a first steel plate, a second steel plate and a third steel plate. The first steel plate is located at the top of the top plate of the suction mouth. The second steel plate is bent and disposed on the side of the top plate of the suction mouth. The third steel plate is bent and disposed inside the suction mouth. The end of the third steel plate away from the second steel plate is connected to the comb teeth.

4. The yarn suction nozzle for a winding machine according to claim 1, characterized in that: The silicone pad is connected to a mounting plate at the end away from the wavy comb teeth. The top surface of the mounting plate is set lower than the silicone pad. The mounting plate is pressed and fixed to the top plate of the suction mouth of the yarn tube suction nozzle by a fixing plate. The fixing plate, the mounting plate and the top plate of the suction mouth are fixed together by bolts. The bottom of the fixing plate on the side away from the silicone pad is connected to a locking block, and the top plate of the suction nozzle is provided with a slot corresponding to the position of the locking block. The locking block is locked in the slot to limit the position of the fixing plate.

5. A winding machine bobbin suction nozzle according to claim 4, characterized in that: The yarn suction nozzle has side baffles extending from both sides of the suction opening, and the side baffles are located on both sides of the mounting plate and the fixing plate. The side baffles are connected by a rear baffle strip, which is integrally set on the top of the top plate of the suction nozzle, and the rear baffle strip is located on the outer side of the fixed plate away from the silicone pad.

6. A yarn suction nozzle for a winding machine according to claim 1, characterized in that: The top surface of both the middle section and the nozzle opening is a transparent plate.

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