JPH0665473U - Lap forming machine - Google Patents

Abstract

(57) [Abstract] [Purpose] When forming a wrap by winding a fleece or the like on a bobbin placed on a pair of winding drums, it is possible to easily discharge the air caught in the fleece or the like, thus providing high quality. Is to form a wrap. [Configuration] wrap forming the lap plate P ₁ constituting the _machine, P ₂ is two disc 12a, and interposed a large number of fan-shaped core material 13 between 12b, these together A plurality of air discharge spaces 17 are formed between the adjacent core materials 13 by coupling, and a large number of air discharge spaces communicating with the air discharge space 17 are provided in the inner disk 12a. The eyelets 18 are provided in the radial direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wrap forming machine that facilitates discharge of entrapped air when winding a fleece or the like on a bobbin mounted on a pair of winding drums to form a wrap.

[0002]

[Prior art]

First, an outline of the configuration of a lap forming machine such as a sliver wrap machine or a ribbon lap machine will be described with reference to FIGS. 6 and 7. The pair of take-up drums D _{1 and} D ₂ are driven and rotated in the same direction, and the pair of lap plates P ′ _{1 and} P ′ ₂ are vertically movable on both sides thereof. Each lap plate P _'1, P' ₂ are their respective bobbin chuck cylinder 1a, and is rotatably supported by the 1b of the piston rod (not shown). The pair of lap plates P ′ _{1 and} P ′ ₂ are in a state of sandwiching both sides of the bobbin B, and are integrally attached to this. The upper ends of the lifting racks 2a and 2b are integrally attached to the bobbin chuck cylinders 1a and 1b, respectively. Pinions 4 (only one of which is shown in the figure) are attached to portions of the horizontally supported rotating shaft 3 that face the lifting racks 2a and 2b, respectively. 2a and 2b mesh with each other. Another pinion 5 is attached to one end of the rotating shaft 3. The pressurizing cylinder 6 is arranged such that its piston rod 7 is orthogonal to the rotating shaft 3 and is horizontal, and the rack 8 attached to the tip of the piston rod 7 and the pinion 5 mesh with each other. ing.

The bobbin B is arranged between a pair of winding drums D _{1 and} D ₂ to wind up the layered fleece F. The fleece F is drafted by a draft device and Due to the improved parallelism of the fibers that make up the fiber, the fibers forming the wrap layer formed by the wrap forming machine enter the layer of the wrap just wound and rewind it. In some cases, licking, which is a phenomenon that makes the layers of the wrap indistinguishable, may occur. If this licking occurs, it cannot be spun in the subsequent process. In order to prevent such licking, a set of two calender rollers 9 is arranged on the upstream side of the pair of winding drums D _{1 and} D ₂ to apply the release roller F before being wound onto the bobbin B. The air contained in the fleece F is discharged by pressure compression and wound around the bobbin B.

The fleece F compressed and compressed by the calendar roller 9 moves on the winding drum D ₁ on the upstream side and is wound around the bobbin B. Bobbin B has its both end portions are attached together to wrap the plate P _'1, P' ₂ of a pair, the lap plate P _'1, P' ₂ is out of the piston rod 7 of the pressurizing cylinder 6 Since the bobbin B moves up and down by the piston rods (not shown) of the bobbin chuck cylinders 1a and 1b, the bobbin B is moved by the pressurizing force Q of the pressurizing cylinder 6 into the drums D1 _and D1. Pressed by ₂ (see Figure 7).

In this way, the bobbin B is paired with the pair of winding drums D._1,D₂Since the fleece F is wound on the upper side, the calender roller 9 and the winding drum D on the upstream side are wound.₁A predetermined distance is generated between the fleece F and the fleece F compressed by the calender roller 9 and the winding drum D.₁While moving up, it expands rapidly again including air. This expanded fleece F is the winding drum D₁The portion on which the component of the pressurizing force Q of the pressurizing cylinder 6 acts (that is, the wrap L wound around the bobbin B is the winding drum D).₁Is compressed under pressure). And the downstream winding drum D ₂ Is again expanded while being transferred to the winding drum D.₂In the portion where the component force of the pressing force of the pressurizing cylinder 6 acts, the pressure is compressed again. Take-up drum D₂The fleece F pressed and compressed by the expands, and each winding drum D_1,D₂Rewinding drum D by rotating₂Reach the pressurized part of. By repeating this, the wrap L is wound up.

Further, the winding of the lap in the lap forming machine is performed by placing the bobbin B on the pair of winding drums D _{1 and} D ₂ and rotating the bobbin B in a driven manner. Therefore, as the diameter of the wrap L wound around the bobbin B increases, the portion of the lap L that comes into contact with the winding drums D _{1 and} D ₂ increases and the portion dents. The slack is generated in the portion immediately after the portion in contact with the winding drums D _{1 and} D ₂ .

When the fleece F transferred on the winding drum D ₁ approaches the pressurizing portion, the fleece F overlaps the outermost layer of the lap L and is transferred downstream. Then, the fleece F and the wrap L wound around the bobbin B are pressed and compressed in an overlapping state. In this way, when the fleece F and the wrap L are pressurized and compressed, the air contained in the fleece F and inflating the fleece F sandwiches the bobbin B at both end edges thereof. to have a pair of wrap plates P _'1, P' ₂ in contact (between the respective lap plate P _'1, P' ₂ and each winding drum D _1, D ₂ at the time of bobbin clamping about 1 mm gap), the layer side of the wrap L (upper side of the fleece F immediately before being wound up), and the winding drum D ₁ side (freeze F immediately before being wound up). It is discharged toward the bottom of the standard).

As described above, the air contained in the fleece F is effectively discharged rearward when the fleece F is pressed and compressed, but the fleece F moves above the take-up drum D ₁ . When it is transferred, it is accompanied by air. Most of this entrained airflow is discharged rearward between the outer layer of the wrap L and the fleece F, but a part of it is introduced between the free layer F and the outer layer of the wrap L. The air flowing between the fleece F and the wrap L contacts the lap L wound around the bobbin B and both end edges of the fleece F with the lap plates P ′ _{1 and} P ′ ₂ as described above. Therefore, between the fibers of the fleece F, which are extruded rearward (on the winding drum D ₁ side), and the fleece F, which is the outer layer of the lap L, sideways (lap plate P divided into those that are pushed to _'1, P' ₂ side).

[0009] Among the side of the air flowing between the the fleece F and the lap L that is extruded (Rappupure over preparative P _'1, P' ₂ side), each lap plate P _'1, P 'although being discharged toward the outer side of the _2, the air is the lap plate P'_'2 and from between the both end edges of the fleece F the lap plate P' _1, P _1, P _'2 While being extruded toward the side of, the fibers with uniform parallelism may be disturbed, and the surface (outer peripheral side) may be disturbed to give a fluffy state, and licking may occur when rewound. Further, the air that has flowed in as described above is discharged from between the lap plates P ′ _{1 and} P ′ ₂ and the both end edges of the fleece F toward the outer peripheral side of the lap plates P ′ _{1 and} P ′ _2. When the wrap L formed by winding the fries F is rewound, licking may occur because the both ends of the fleece F are disturbed and the wrap L is not discharged smoothly. These adverse effects become more prominent as the winding speed increases. Further, the air that has entered between the lap L and the fleece F may not be pushed out to the outside as described above, and may remain in the state of being accumulated between the fibers forming the fleece F. The wrap L formed by winding the fleece F containing such air is too soft, and there is also a problem in that a wrap having a large diameter cannot be formed.

[0010]

[Problems to be solved by the device]

 In view of the above-mentioned problems, the present invention provides a method for forming a wrap by winding a fleece or the like on a bobbin mounted on a pair of winding drums by a simple improvement of the lap plate constituting the lap forming machine. In addition, the problem is to make it easy to discharge the air caught in the fleece or the like to form a high quality wrap.

[0011]

[Means for Solving the Problems]

 In order to solve this problem, the means adopted by the present invention is a pair of winding drums, and the bobbins mounted on the pair of winding drums are clamped at both end surfaces of the pair of winding drums and are integrally attached thereto. A pair of lap plates and a pressurizing cylinder for urging the pair of lap plates downward via a thrust transmission mechanism, and the lap wound on the bobbin by the pressurizing cylinder. In a lap forming machine configured to wind a wrap by rotating the bobbin while pressing the pair of take-up drums, the lap plate is divided into a plurality of positions along the circumferential direction of the lap plate. A large number of small holes for air discharge are provided along the radial direction.

[0012]

[Function of the device]

 Of the air that flows with the fleece and flows between the fleece and the lap, it is not pushed backward but flows between the fleece and the lap and is pushed out to the side, or included in the fleece or wrap When the air is compressed, it is pushed out to the side without being discharged to the rear when it reaches the lap plate, and then is discharged to the outside through the small holes for air discharge provided in the lap plate. Therefore, the wrap of the outer layer, which is regulated by the wrap plate, and the fibers at both ends of the fleece are not disturbed by the accompanying air flow. Further, since the air discharge hole provided in the lap plate is a small hole and the inner surface of the lap plate maintains a flat surface, both ends of the wrap formed by increasing the winding diameter while repeating compression and expansion. Even if the part contacts the wrap plate, the fibers in this part are not damaged and a good quality wrap is formed. In particular, the wrap plate has a large number of fan-shaped cores between two discs, and these are integrally connected, so that a large number of air discharge spaces are formed between the adjacent cores. When a large number of small holes for air discharge communicating with the air discharge spaces are provided in the disc disposed inside so as to be formed to open on the surface in the radial direction, it is provided on the lap plate. This has the advantages that the small holes for air discharge can be made shallower and that a regular air discharge path through which air is discharged from the outer peripheral surface of the lap plate can be formed.

[0013]

【Example】

Hereinafter, the present invention will be described in more detail with reference to examples. The same parts as those described in the above-mentioned "Prior Art" are designated by the same reference numerals, and only the characteristic parts of the present invention will be described while avoiding duplicated description. FIG. 1 is an overall perspective view of a lap forming machine according to the present invention, FIG. 2 is a front view of a lap plate P ₁ (P ₂ ), FIG. 3 is a perspective view of the same, and FIG. FIG. 5 is also an exploded perspective view, and FIG. 5 is a sectional view of the lap plate P _{1 in} a mounted state. In each drawing, the lap plate P ₁ has a large number of fan-shaped core members 13 arranged side by side in the circumferential direction between two discs 12 a and 12 b having a boss hole 11 in the central portion thereof. The ring body 14 is applied to the inner peripheral surface side of the core material 13, and the bolts 15 and the nuts 16 fixed to the inner disk 12a are integrally connected to each other so that they are adjacent to each other. An air discharge space 17 is formed between the cores 13, and a large number of small air discharge holes 18 are formed in the inner disk 12a along the radial direction so as to communicate with the air discharge space 7. Are provided. The lap plate P ₂ has the same structure as the wrap plate P ₁ .

As shown in FIG. 5, a lap plate shaft 19 is connected to a piston rod (not shown) of the bobbin chuck cylinder 1 a, and a boss body 21 has a bearing at the tip of the lap plate shaft 19. It is rotatably mounted via (not shown), and a part of the boss body 21 is inserted into the boss holes 11 of the discs 12a and 12b and is integrally provided on the boss body 21. The boss portion 21a is fixed to the outer disk 12b of the wrap plate P ₁ . A bobbin supporting boss 22 that is fitted inside the end of the bobbin B and supports the bobbin B is integrally attached to the center of the disk 12a inside the lap plate P ₁ . The mounting portion of the lap plate P ₂ has the same structure as this. The bobbin B is supported by the bobbin supporting bosses 22 integrally mounted inside the lap plates P _{1 and} P ₂ , and the bobbin B and the lap plates P _{1 and} P ₂ are integrated. It rotates with respect to the lap plate shaft 19.

Then, the wrap L wound on the bobbin B is pressed by the winding drums D _{1 and} D ₂ by the pressure of the pressurizing cylinder 6, and the fleece F is wound up. Here, as described in the section “Prior Art”, the air contained in the fleece F is discharged to the outer layer side of the wrap L when being compressed under pressure by the winding drum D _1. And the air discharged to the winding drum D ₁ side, and most of the air discharged to the outer layer side of the wrap L together with the air flow entrained in the winded fleece F. The remaining airflow is discharged from between the outer layer of the wrap F and the outer layer of the wrap L, and only the remaining airflow enters the fleece F together with a part of the above-mentioned associated airflow. In addition, the air contained in the fleece F and the associated air flow discharged to the take-up drum D ₁ side flow to both ends of the fleece F, and then the lap plates P _1, P ₂ through the small holes 18 for air discharge provided in the inner disk 12a, into the air discharge space 17 formed between each disk 12a, 12b and each core 13. It enters and is smoothly discharged through the openings provided on the outer peripheral surfaces of the lap plates P _{1 and} P ₂ .

Further, the air that is accompanied by the fleece F and has entered the inside of the fleece F is pushed out laterally through the fibers of the outer layer of the fleece F or the wrap L at the time of compression and compression, and each lap plate After reaching P _{1 and} P ₂ , it is smoothly discharged to the outside through the air discharging small hole 18 and the air discharging space 17 by the same action as above. Therefore, the fibers at both ends of the fleece F and the wrap L are not disturbed by the exhaust air flow. The outer layer of the wrap L is also compressed by the winding drum D ₂ and then expanded again with air, and together with the newly wound fleece F, it is compressed again at the winding drum D _1. Therefore, the air that is not discharged to the outside at the time of compression but remains inside is pushed out laterally through the fibers of the wrap L or the fleece F as in the case of the above-mentioned fleece F, and is pushed to the side of each wrap. After reaching the plates P _{1 and} P _{2 ,} they are smoothly discharged to the outside through the small holes 18 for air discharge and the air discharge space 17.

Further, the air exhaust hole provided in the inner disk 12a constituting each lap plate P _1, P ₂ is a small hole, and the inner side surface of the inner disk 12a holds a flat surface. Therefore, even if both ends of the wrap L and the fleece F contact the respective lap plates P _{1 and} P ₂ , the fibers constituting the lap plates P _{1 and} P ₂ do not get stuck in the small holes 18 for air discharge. Therefore, even if the fibers of the outer layer of the wrap formed by increasing the winding diameter while repeatedly compressing and expanding strongly contact the wrap plates P _{1 and} P ₂ , the fibers are not damaged.

In the above embodiment, a large number of fan-shaped core members 13 are interposed between the two discs 12a and 12b, and an air discharge space 17 is provided between the adjacent core members 13. In addition to forming the air discharge passages in the lap plates P _{1 and} P ₂ by forming a large number of small air discharge holes 18 communicating with the air discharge space 17 in the inner disk 12a, All the air is discharged from the outer peripheral surfaces of the lap plates P _{1 and} P ₂ , which has an advantage that a regular air discharge path can be formed. However, according to the present invention, "a large number of small air holes are provided in the radial direction at each of the multiple positions along the circumferential direction of each lap plate that constitutes the lap forming machine. The above embodiment is merely an example of the present invention, and a structure in which a small hole for discharging air is provided in the lap plate is also included in the present invention. is there.

[0019]

[Effect of device]

 According to the present invention, a large number of small air vent holes are provided in the fleece at each of a plurality of positions along the circumferential direction of each lap plate that constitutes the lap forming machine. The air that is entrained and flowed between the fleece and the lap is not pushed backward but flows between the fleece and the lap and is pushed out to the side, or is included in the fleece and the wrap. The air that is pushed out to the side when it is compressed is not discharged backward when it reaches the lap plate, and then is smoothly discharged to the outside through the small holes for air discharge provided in this. .. Therefore, the wrap of the outer layer regulated by the wrap plate and the fibers at both ends of the fleece are not disturbed by the accompanying air flow. This is combined with the fact that the air exhaust holes provided in the lap plate are small holes and the inner surface of the lap plate is kept flat, so that both ends of the lap that come into contact with the lap plate are not damaged. So a good quality wrap is formed. In addition, the air contained in the fleece and pushed out laterally inside it, and the air that was carried by the fleece and flowed into the outer layer of the wrap and was pushed out laterally inside it. Since the air is effectively discharged at the lap plate portion, the amount of air contained in the wrap is reduced, and a large diameter wrap can be wound up.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a lap forming machine according to the present invention.

FIG. 2 is a front view of a lap plate P ₁ (P ₂ ).

FIG. 3 is a perspective view of the same.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a sectional view of a mounting portion of a lap plate P ₁ .

FIG. 6 is an overall perspective view of a conventional lap forming machine.

FIG. 7 is a principle diagram for explaining winding of a wrap L.

[Explanation of symbols]

B: bobbin D _1, D _2: the winding drum L: Wrap P _1, P _2: Wrap plate 6: pressurizing the cylinder 12a, 12b: disk 13: core material 17: air discharge space 18: eyelet air discharge

Claims (2)

[Scope of utility model registration request] 1. A pair of take-up drums, a pair of lap plates integrally attached to the both ends of bobbins mounted on the pair of take-up drums so as to sandwich the bobbins, and thrust transmission. A pressurizing cylinder for urging the pair of lap plates downward through a mechanism, while pressing the lap wound on the bobbin by the pressurizing cylinder against the pair of winding drums, In a lap forming machine having a structure in which a bobbin is driven to rotate and winds a wrap, a large number of air discharge small holes are provided in the radial direction at respective positions divided into a large number along the circumferential direction of the lap plate. A lap forming machine characterized by the above. 2. The wrap plate comprises a plurality of fan-shaped core members interposed between two discs and integrally joined together to thereby form a large number of air gaps between adjacent core members. The exhaust space is formed by opening on the outer peripheral surface, and a large number of air exhaust small holes communicating with each of the air exhaust spaces are provided in the disk disposed inside in a radial direction. The lap forming machine according to claim 1, wherein: