CN218043750U - Wire supply device, wire supply system and cigarette making and plug assembling machine - Google Patents

Abstract

The utility model relates to a supply silk device, supply silk system and cigarette making and plug assembling machine, supply the silk device to include: a suction belt (10); the tobacco shred feeding device comprises a baffle plate assembly (1) and a tobacco shred feeding device, wherein the baffle plate assembly comprises a first baffle plate (1 a) and a second baffle plate (1 b) which are respectively arranged on two sides of a shred suction belt (10), and a tobacco shred bundle channel is formed between the first baffle plate (1 a) and the second baffle plate (1 b); the trimmer is positioned in a gap below the breast board assembly (1) and used for trimming the cut tobacco adsorbed on the cut tobacco adsorption belt (10); the supporting rollers are arranged side by side along the silk suction belt (10) and are used for supporting the silk suction belt (10); the supporting component (9) is positioned between the two bearing rollers close to the trimmer and used for supporting the silk suction belt, and the supporting component is positioned between the two bearing rollers close to the trimmer and used for supporting the silk suction belt, so that the problem that the silk suction belt is easy to bend and deform between the two bearing rollers close to the trimmer in the related art is solved.

Description

Wire supply device, wire supply system and cigarette making and plug assembling machine

Technical Field

The utility model relates to the technical field of cigarette, in particular to supply silk device, supply silk system and cigarette making and plug assembling machine.

Background

The cigarette making machine is a special device for producing cigarettes in cigarette industry enterprises, as shown in fig. 1 and 2, a cigarette making machine shred supply device comprises a negative pressure chamber 13, a front rail plate 12 and a rear rail plate 11 are arranged in the negative pressure chamber 13, the front rail plate 12 and the rear rail plate 11 are respectively and correspondingly fixed on a front cheek plate 16 and a rear cheek plate 15, a shred suction belt 1 is arranged between the front rail plate 12 and the rear rail plate 11, and a shred channel is formed between the front cheek plate 16 and the rear cheek plate 15 below the shred suction belt 1. The tobacco shreds in the tobacco shred channel are adsorbed on the shred absorption belt 1 by the negative pressure in the negative pressure chamber 13, the tobacco shreds 2 move leftwards along with the shred absorption belt 1, the excessive tobacco shreds are trimmed by the trimmer 3 and then conveyed to the cigarette gun 5, the cigarette paper is wrapped to form cigarette strips, and the SRM weight detection device continuously monitors the weight of the cigarette strips. When the weight of the cigarette is heavier, the PLC control system enables the trimmer 3 to ascend through the servo motor 4 to trim more tobacco shreds, and the quantity of the tobacco shreds before trimming is reduced by 21, so that the weight of the cigarette is reduced; when the weight of the tobacco rod is lighter, the PLC control system enables the trimmer 3 to descend through the servo motor to trim less tobacco shreds, and therefore the weight of the tobacco rod is increased.

The silk suction belt 1 is supported by a plurality of bearing rollers 6, the diameters of all the bearing rollers 6 are the same, and the circle centers of all the bearing rollers are positioned on the same horizontal plane. As shown in fig. 2, suction belt 1 should be in a horizontal state in theory to ensure that amount of cut tobacco 22 trimmed by trimmer 3 is stable. The bearing roller 6 is in clearance fit with the pin shaft 14, and the bearing roller 6 is a driven wheel and rotates around the pin shaft 14. The pin shaft 14 is fixed on the rear breast board 11 and is in interference fit with the rear breast board. The width of the bearing roller 6 is slightly smaller than that of the front fence plate 12 and the rear fence

The distance between the plates 11.

1. Suction forming principle and weight control principle

As shown in figure 1, the negative pressure in the negative pressure chamber 13 firmly adsorbs the cut tobacco thrown into the cut tobacco suction channel by the throwing roller to the lower part of the breathable nylon mesh cut tobacco suction belt 1, and the cut tobacco 2 continuously moves leftwards along with the cut tobacco suction belt to form a tobacco bundle. The tobacco bundles are conveyed to a tobacco pipe 5 after trimming redundant tobacco shreds by a trimmer 3, and wrapped with cigarette paper to form tobacco strips after being rolled and glued. The SRM weight detection device continuously monitors the weight of the tobacco strips and feeds the weight to the control system, and when the weight of the tobacco strips is heavier, the PLC control system enables the trimmer to ascend through the servo motor 4 to trim more tobacco shreds, so that the weight of the tobacco strips is reduced; when the weight of the tobacco rod is lighter, the PLC control system enables the trimmer to descend through the servo motor so as to reduce the tobacco shred trimming amount, and therefore the weight of the tobacco rod is increased.

2. Support mode of silk suction belt

The silk suction belt is supported by a plurality of bearing rollers, the diameters of all the bearing rollers are the same, and the circle centers of all the bearing rollers are positioned on the same horizontal plane. As shown in fig. 3, the suction belt should be in a horizontal state theoretically to ensure a stable amount of cut tobacco trimmed by the trimmer.

However, the applicant found that: the prior art at least has the following technical problems:

1. the yarn suction belt has bending deformation

As shown in fig. 4, in practice the suction belt is effectively supported at the support rollers, but lacks effective support in the area between the two support rollers. In this region, the suction belt is deformed in an upward bending manner by the negative pressure. When the cut tobacco moves along with the cut tobacco suction belt, the cut tobacco is not in a horizontal movement state, but in a wave-shaped advancing movement. The amount of cut tobacco trimmed by the trimmer is thus subject to certain fluctuations.

2. Vibration of the ribbon

(1) The negative pressure chamber 13 is an irregular cavity similar to a cuboid, the interior of the negative pressure chamber comprises a plurality of parts such as a silk suction belt guide wheel, a scraper, an air cylinder and the like, negative pressure airflow inevitably has disturbance, and negative pressure suction force applied to the silk suction belt is changed continuously. Therefore, the suction belt 1 vibrates up and down in the area between the two carrier rollers 6, and the amount of cut tobacco trimmed by the trimmer 33 fluctuates to some extent.

(2) The quantity and composition of the shredded tobacco stream delivered upstream is not uniform, so that the pressure exerted by the shredded tobacco on the suction belt 1 by the negative pressure is also constantly variable. Therefore, the suction belt vibrates up and down in the area between the two carrier rollers 6, and there is a certain fluctuation in the amount of cut tobacco trimmed by the trimmer 33.

3. The trimmer breaks up the tobacco shreds when trimming the tobacco bundles

When the cigarette tows are adsorbed on the shred absorption belt 1 to run, a tobacco shred channel is formed by the front and the rear baffle plates. However, the front and rear breast boards do not form a proper channel at the trimmer 3 in order to avoid the position of the trimmer 3, so that the cigarette bundle is stressed and is not protected by the channel and is loosened when being trimmed, and the cigarette end missing rate is increased.

In conclusion, the cut tobacco amount trimmed by the trimmer has certain fluctuation, which causes the weight of the tobacco rod to be unstable. SRM weight detection device detects the cigarette strip weight and changes, and PLC control system passes through servo motor, makes trimmer 3 frequent lift to reduce the weight stability of a cigarette product, increased the empty head rate. And the cigarette silk bundle lacks sufficient breast board passageway protection when pruning the section through trimmer 33, causes harmful effects to the degree of compaction of cigarette silk bundle, has further increased the empty head rate.

The rolling machine has the function of automatically detecting and eliminating the empty head, and the empty head eliminating rate is the first of various waste product eliminating rates of the rolling machine. The increase of the empty head rate greatly increases the rejection rate of the waste products of the equipment, which leads to the increase of consumption and the raising of the cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a supply silk device, supply silk system and cigarette making and plug assembling machine to improve the problem that exists in the correlation technique inhales the easy bending deformation of silk ribbon between near two bearing rollers of trimmer.

According to an aspect of the embodiment of the utility model provides a supply silk device, include:

a silk suction belt;

the baffle plate assembly comprises a first baffle plate and a second baffle plate which are respectively arranged on two sides of the filament absorbing belt, and a tobacco filament bundle channel is formed between the first baffle plate and the second baffle plate;

the trimmer is positioned in the gap below the breast board assembly and used for trimming the tobacco shreds adsorbed on the shred adsorption belt;

the supporting rollers are arranged side by side along the silk suction belt and are used for supporting the silk suction belt;

and the supporting part is positioned between two bearing rollers close to the trimmer and used for supporting the silk suction belt.

In some embodiments, the wire supply further comprises:

the first stopping component is arranged at the notch and positioned on one side of the silk suction belt; and

and the second stopping component is arranged at the notch and positioned on the other side of the silk suction belt.

In some embodiments, the heights of the first stop member and the second stop member are synchronously adjustable.

In some embodiments, the wire supply further comprises:

the thread driving part is connected with the first stopping part to drive the first stopping part to adjust the height;

and the fixed base is fixedly connected with the first breast board and is used for mounting a thread driving part on the first breast board.

In some embodiments, the fixing base includes a mounting hole for mounting the screw driving member, and the first stopping member has a screw hole formed therein, and the screw driving member is rotatably disposed in the mounting hole and threadedly engaged with the screw hole.

In some embodiments, the fixing base includes a mounting hole for mounting the screw driving part, the mounting hole is a threaded hole, the screw driving part is in threaded fit with the mounting hole, and the screw driving part is fixedly connected with the first stopping part.

In some embodiments, the fixing base is provided with a locking screw hole communicated with the mounting hole, and a locking screw for limiting the movement of the thread driving part is arranged in the locking screw hole.

In some embodiments, the yarn feeding device further includes a connecting member, one end of the connecting member in the width direction of the yarn suction belt is connected to the first stopper member, and the other end of the connecting member in the width direction of the yarn suction belt is connected to the second stopper member.

In some embodiments, the yarn feeding device further comprises a supporting roller for supporting the yarn suction belt, and the supporting surface of the bearing member adjacent to the yarn suction belt and the supporting roller are flush with the contact portion of the yarn suction belt.

In some embodiments, the yarn feeding device further comprises a bearing part, the bearing part comprises a connecting part connected with the first breast board and/or the second breast board and a bearing part positioned above the yarn suction belt, and the supporting part is mounted on the bearing part.

In some embodiments, the support member is provided with a through hole communicating the suction band and the negative pressure chamber on one side of the suction band.

According to the utility model discloses an on the other hand still provides a supply silk system, supplies the silk system to include foretell confession silk device.

According to the utility model discloses an on the other hand still provides a rolling machine, and rolling machine includes foretell confession silk system.

Use the technical scheme of this application, support component is located and is close to between two bearing roller of trimmer for support and inhale the silk ribbon, improved the problem that the silk ribbon easy bending deformation that inhales that exists in the correlation technique between two bearing roller near the trimmer.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Figure 1 shows a schematic structural view of a prior art thread supply device;

FIG. 2 shows a schematic view of a prior art wire supply system;

FIG. 3 shows a schematic representation of a theoretical suction band support arrangement of a prior art yarn supply;

FIG. 4 shows a schematic view of a schematic of a prior art supply of thread in fact of a suction band support;

fig. 5 shows a schematic front view of a wire feeding device according to an embodiment of the present invention;

fig. 6 shows a schematic top view of a wire supply device according to an embodiment of the present invention;

fig. 7 is a schematic bottom view of a wire feeding device according to an embodiment of the present invention;

fig. 8 shows a schematic top view of a fixing base of the wire feeding device according to an embodiment of the present invention;

fig. 9 shows a schematic cross-sectional structural view of a fixing base of a wire feeding device according to an embodiment of the present invention;

fig. 10 shows a schematic structural view of a first stop member of a wire feeding device according to an embodiment of the present invention;

fig. 11 shows a schematic cross-sectional structural view of a first stop member of a wire feeding device according to an embodiment of the present invention;

fig. 12 shows a schematic structural view of a screw driving part of a wire feeding device according to an embodiment of the present invention;

fig. 13 shows a schematic structural view of a connection part of a wire supply device according to an embodiment of the present invention;

fig. 14 shows a schematic cross-sectional structural view of a connection part of a wire supply device according to an embodiment of the present invention;

fig. 15 shows a schematic structural view of a second stop member of the wire feeding device according to an embodiment of the present invention;

fig. 16 shows a schematic top view of a load bearing member of a wire feeding device according to an embodiment of the present invention;

fig. 17 shows a schematic cross-sectional structural view of a load bearing member of a wire feeding device according to an embodiment of the present invention;

fig. 18 shows a schematic top view of a support member of a wire feeding device according to an embodiment of the present invention; and

fig. 19 shows a schematic cross-sectional structural view of a support member of a wire feeding device according to an embodiment of the present invention.

In the figure:

1. a balustrade assembly; 1a, a first breast board; 1b, a second breast board; 2. a dresser-placing section; 3. a fixed base; 31. mounting holes; 32. fixing a base mounting hole; 311. a first bore section; 312. a second bore section; 33. locking screw holes; 4. a threaded drive component; 41. a threaded segment; 42. a columnar section; 43. a nut; 5. a first stopper member; 51. a threaded hole; 52. a smooth hole section; 53. a first connecting structure; 6. a second stopper member; 61. a second connecting structure; 7. A carrier member; 71. a connecting portion; 72. a bearing part; 73. a communicating hole; 74. a support member mounting hole; 75. a carrier mounting hole; 8. a connecting member; 9. a support member; 91. a through hole; 92. connecting the threaded hole; 10. a silk suction belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 5 to 7, the yarn feeding device of the present embodiment includes a yarn suction belt 10, a fence assembly 1, a dresser setting portion 2, a first stopper member 5, and a second stopper member 6. The baffle plate assembly 1 comprises a first baffle plate 1a and a second baffle plate 1b which are respectively arranged at two sides of the filament absorbing belt 10, and a tobacco shred bundle channel is formed between the first baffle plate 1a and the second baffle plate 1b. The dresser-placing part 2 includes a notch formed below the breast board assembly 1 for accommodating a dresser for trimming the cut tobacco adsorbed on the cut tobacco suction belt 10. The first stopper member 5 is provided at the notch and on one side of the suction belt 10. The second stopper member 6 is provided at the notch and on the other side of the suction belt 10.

In the embodiment, a first stopping part 5 and a second stopping part 6 are arranged in the gap for accommodating the trimmer, and the first stopping part 5 and the second stopping part 6 form a channel for guiding the cut tobacco, so that the problem that the cut tobacco bundle is loose due to insufficient protection of the channel when being trimmed due to the fact that a proper channel cannot be formed at the trimmer in the related art and the hollow rate of the cigarettes rises is solved.

A negative pressure chamber is arranged above the shred suction belt 10, a tobacco shred bundle channel is arranged below the shred suction belt 10, and the tobacco shreds are attached to the shred suction belt 10 by negative pressure in the negative pressure chamber.

In some embodiments, the heights of the first stop member 5 and the second stop member 6 are synchronously adjustable.

The wire supply device further comprises a screw drive member 4 and a stationary base 3. The screw driving part 4 is connected with the first stopping part 5 to drive the first stopping part 5 to adjust the height. The fixed base 3 is fixedly connected with the first breast plate 1a and is used for mounting a screw driving part 4 thereon.

As shown in fig. 5 and 8 to 10, the fixing base 3 includes a mounting hole 31 for mounting the screw driving member 4, a screw hole 51 is provided on the first stopper member 5, and the screw driving member 4 is rotatably provided in the mounting hole 31 and screw-engaged with the screw hole 51. The screw drive member 4 is restricted from moving in its axial direction, the first stop member 5 is restricted from rotating in the circumferential direction of the threaded bore 51, the threaded section 41 of the screw drive member 4 constitutes a screw, and the first stop member 5 constitutes a slide which moves along the screw.

As shown in fig. 12, the screw driving member 4 further includes a cylindrical section 42 coaxial with and connected to the threaded section 41, and a nut 43 connected to an end of the cylindrical section 42 remote from the threaded section 41.

As shown in fig. 9, the mounting hole 31 includes a first hole section 311 at a lower portion thereof to fit the size of the cylindrical section 42 and a second hole section 312 above the first hole section 311 to fit the nut 43.

As shown in fig. 10 and 11, the first stopping member 5 further includes a light hole section 52 disposed above the threaded hole 51 and adapted to the cylindrical section 42 of the screw driving member 4, and the diameter of the light hole section 52 is larger than that of the threaded hole 51.

The threaded section 41 of the threaded driving member 4 is threaded to the threaded hole 51 after passing through the second hole section 312, the first hole section 311 of the fixed base 3 and the unthreaded hole section 52 of the first stopper member 5. The cylindrical section 42 of the screw drive part 4 is located in the first bore section 311 of the mounting bore 31 and the unthreaded bore section 52 of the first stop part 5. The fixed base 3 is provided with a fixed base mounting hole 32 for mounting it on the first breast board 1 a. Alternatively, the fixed base mounting hole 32 is a stepped hole. The fixed base 3 is mounted on the first breast board 1a by screws inserted into the fixed base mounting holes 32.

In other embodiments, the fixing base 3 includes a mounting hole 31 for mounting the screw driving part 4, the mounting hole 31 is a threaded hole, the screw driving part 4 is in threaded fit with the mounting hole 31, and the screw driving part 4 is fixedly connected with the first stopping part 5.

The fixing base 3 is provided with a locking screw hole 33 communicated with the mounting hole 31, and a locking screw for limiting the movement of the thread driving part 4 is arranged in the locking screw hole 33. The locking screw is screwed into the locking screw hole 33 and abuts against the screw drive member 4 to restrict the movement of the screw drive member 4.

As shown in fig. 5 and fig. 13 to 14, the yarn feeding device further includes a connecting member 8, one end of the connecting member 8 in the width direction of the yarn suction belt 10 is connected to the first stopper member 5, and the other end of the connecting member 8 in the width direction of the yarn suction belt 10 is connected to the second stopper member 6.

As shown in fig. 10, the first stopping member 5 is provided with a first connecting structure 53 for connecting with the connecting member 8, and as shown in fig. 15, the second stopping member 6 is provided with a second connecting structure 61 for connecting with the connecting member 8.

As shown in fig. 5 and 6, the yarn feeding device further includes a support member 9, the support member 9 being located at the notch, the support member 9 serving to support the yarn suction belt 10, so as to improve the problem of the related art that the yarn suction belt 10 near the dresser mounting portion 2 is easily bent. Specifically, the support member 9 is located above the suction belt 10 and between two adjacent carrier rollers in the vicinity of the dresser.

The yarn supply device also comprises a bearing roller for bearing the yarn suction belt 10, and the bearing surface and the bearing roller of the support component 9 close to the yarn suction belt 10 are flush with the contact part of the yarn suction belt 10.

As shown in fig. 16 and 17, the yarn feeding device further includes a bearing member 7, the bearing member 7 includes a connecting portion 71 connected to the first breast plate 1a and/or the second breast plate 1b and a bearing portion 72 located above the yarn suction belt 10, and the supporting member 9 is mounted on the bearing portion 72.

The connecting portion 71 of the bearing member 7 is provided with a bearing member mounting hole 75, and the bearing member 7 is mounted on the first breast board 1a and/or the second breast board 1b through a screw inserted into the bearing member mounting hole 75. The carrier member 72 is provided with a support member mounting hole 74 for mounting the support member 9, as shown in fig. 18 and 19, the support member 9 is provided with a connection screw hole 92, and the support member 9 is mounted on the carrier member 7 by screws inserted through the support member mounting hole 74 and the connection screw hole 92.

The support member 9 is provided with a through hole 91 communicating the yarn suction belt 10 and a negative pressure chamber on one side of the yarn suction belt 10. The carrier member 7 is provided with a communication hole 73 communicating with the through hole 91 to connect the negative pressure chamber and the through hole 91.

The support member 9 is located between two carrier rollers closest to the dresser, and the lower surface thereof is a working surface which is horizontal and flush with the lower edge of the carrier roller. The cut tobacco suction belt 10 is effectively supported by the supporting part 9 in the whole process of trimming cut tobacco by the trimmer, and is not bent and deformed upwards any more, and the vibration amplitude is greatly reduced. Thereby ensuring that the cut tobacco quantity trimmed by the trimmer is kept stable. The supporting component 9 is fixedly connected with the supporting component 7 through screws, and the supporting component 7 is fixed on the cigarette making machine equipment through screws. The first stop member 5 and the second stop member 6 are connected by a connecting block to form a suitable tow channel. The first stop component 5 is connected with the fixed base 3 through the thread driving component 4, and the fixed base 3 is fixed on the cigarette making machine equipment through screw connection. The first stopping component 5 and the second stopping component 6 can be lifted in a certain range by rotating the thread driving component 4, the upper and lower positions of a cigarette bundle baffle channel formed by the thread driving component are further adjusted, the position of the thread driving component 4 is fixed by the fastening screw, and the problem that the stress of cigarette bundles is loose when the cigarette bundles are trimmed by the trimmer is solved

According to another aspect of the present invention, there is provided a wire feeding system, which includes the above wire feeding device.

According to another aspect of the present invention, there is provided a yarn feeding system for a cigarette making and plug assembling machine.

The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A wire supply apparatus, comprising:

a suction belt (10);

the tobacco shred sucking belt comprises a baffle plate assembly (1) and a guide rail assembly (2), wherein the baffle plate assembly (1) comprises a first baffle plate (1 a) and a second baffle plate (1 b) which are respectively arranged on two sides of the shred sucking belt (10), and a tobacco shred bundle channel is formed between the first baffle plate (1 a) and the second baffle plate (1 b);

the trimmer is positioned in the gap below the breast board assembly (1) and used for trimming the cut tobacco adsorbed on the cut tobacco adsorption belt (10);

the bearing rollers are arranged side by side along the silk suction belt (10) and are used for bearing the silk suction belt (10);

and the supporting component (9) is positioned between two bearing rollers adjacent to the trimmer and used for supporting the silk suction belt.

2. The wire supply apparatus according to claim 1, further comprising:

the first stopping component (5) is arranged at the notch and is positioned on one side of the silk suction belt (10); and

and the second stopping component (6) is arranged at the notch and is positioned on the other side of the silk suction belt (10).

3. A wire supply device according to claim 2, characterized in that the heights of the first stop member (5) and the second stop member (6) are synchronously adjustable.

4. A wire supply apparatus according to claim 3, further comprising:

the thread driving part (4) is connected with the first stopping part (5) to drive the first stopping part (5) to adjust the height;

and the fixed base (3) is fixedly connected with the first breast board (1 a) and is used for mounting the thread driving component (4) on the fixed base.

5. A wire supply device according to claim 4, wherein the fixing base (3) comprises a mounting hole (31) for mounting the screw driving member (4), a threaded hole (51) is provided on the first stop member (5), and the screw driving member (4) is rotatably provided in the mounting hole (31) and is in threaded engagement with the threaded hole (51).

6. The wire supply device according to claim 4, wherein the fixing base (3) comprises a mounting hole (31) for mounting the screw driving part (4), the mounting hole (31) is a threaded hole, the screw driving part (4) is in threaded fit with the mounting hole (31), and the screw driving part (4) is fixedly connected with the first stopping part (5).

7. The wire supply device according to claim 6, wherein the fixing base (3) is provided with a locking screw hole (33) communicated with the mounting hole (31), and a locking screw for limiting the movement of the screw driving part (4) is arranged in the locking screw hole (33).

8. The yarn supply device according to claim 2, further comprising a connecting member (8), one end of the connecting member (8) in the width direction of the yarn suction tape (10) being connected to the first stopper member (5), and the other end of the connecting member (8) in the width direction of the yarn suction tape (10) being connected to the second stopper member (6).

9. The yarn feeding device according to claim 1, further comprising a supporting roller for supporting the yarn suction belt (10), wherein a supporting surface of the supporting member (9) adjacent to the yarn suction belt (10) and a contact portion of the supporting roller with the yarn suction belt (10) are flush.

10. The yarn supply device according to claim 1, further comprising a bearing member (7), wherein the bearing member (7) comprises a connecting portion (71) connected with the first breast plate (1 a) and/or the second breast plate (1 b) and a bearing portion (72) located above the yarn suction belt (10), and the support member (9) is mounted on the bearing portion (72).

11. A yarn feeding device according to claim 1, wherein the supporting member (9) is provided with a through hole communicating the yarn suction belt (10) and a negative pressure chamber at one side of the yarn suction belt (10).

12. A wire supply system comprising a wire supply device according to any one of claims 1 to 10.

13. A cigarette making and plug assembling machine comprising the filament supply system of claim 12.

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