The expansion and contraction device for the head of glass fiber drawing machine

Abstract

The present invention relates to a forced expansion and contraction device for the head of a glass fiber drawing machine, which belongs to the technical field of glass fiber drawing machine equipment, including a head spindle, a plurality of expansion plates distributed in an annular shape are arranged on the head spindle, a rotating drum connected to the head spindle is arranged between the expansion plate and the head spindle, an upper wire ring fixed to the rotating drum is arranged at the front end of the rotating drum, the expansion plate and the rotating drum are movably engaged in a step-by-step manner, a head rear end cover fixed to the rotating drum and the head spindle is arranged at the rear end of the rotating drum, a disc-type cone sleeve movably engaged with the expansion plate is arranged between the rotating drum and the upper wire ring, and between the rotating drum and the head rear end cover, and expansion plate expansion and contraction inclined grooves movably engaged with the disc-type cone sleeve are arranged at both ends of the expansion plate. It has the characteristics of compact structure and good operation stability. The forced expansion and contraction are completed in a limited head interior, which solves the reliability problem of automatic unloading of the barrel, enables the manipulator or robot to unload the barrel normally, and realizes the rationalization of the structure and reliable performance of the wire drawing machine.

Description

Technical Field

[0001] The invention relates to the technical field of wire drawing machine equipment, and in particular to a sheet expansion forced telescopic device for a head of a glass fiber wire drawing machine. Background Art

[0002] In the production of glass fiber drawing, there are two main types of expansion plates for the head of the drawing machine. One is centrifugal expansion without shrinkage function, and the other is forced expansion but only slightly shrinkage that can overcome the self-weight function of the expansion plate, that is, the two ends of the head expansion plate are tightened by tension spring rings. However, in these two methods, when the sizing agent is relatively sticky, the expansion plate and the inner wall of the yarn tube are easily adhered together. Although the cone sleeves at both ends have left the taper of the expansion plate, the inability of the tension spring ring to shrink causes the entire circle of the expansion plate to be in a state of marriage with the inner wall of the yarn tube. It is difficult to unload the tube without a shrinkage effect. This seriously affects the implementation of glass fiber drawing production automation and restricts the development of the industry. At present, due to the demand for intelligent manufacturing automation upgrades, some glass fiber companies are also in urgent need of changing the traditional drawing tube unloading method and breaking through the drawing process to improve automated production efficiency and product quality. Summary of the invention

[0003] The present invention mainly solves the shortcomings of the prior art, such as complex structure and poor operation stability, and provides a forced expansion and contraction device for the head of a glass fiber drawing machine, which has the characteristics of compact structure and good operation stability. The forced expansion and contraction is completed within the limited head, so that automated production can be carried out, and the reliability problem of automatic unloading of the barrel is solved, so that the manipulator or robot can unload the barrel normally, and the structure of the drawing machine is rationalized and the performance is reliable.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] A device for forcing expansion and retraction of a sheet for a head of a glass fiber drawing machine comprises a head main shaft, on which a plurality of expansion sheets distributed in a ring are arranged, between which a rotating drum connected to the head main shaft is arranged, the front end of which is provided with an upper wire ring nested and fixed with the rotating drum, the expansion sheet is movably engaged with the rotating drum in a step-like manner, the rear end of which is provided with a head rear end cover nested and fixed with the rotating drum and the head main shaft, between which a disc-type cone sleeve movably engaged with the expansion sheet is arranged, and between which the rotating drum and the upper wire ring and between which the rotating drum and the head rear end cover are arranged, and both ends of the expansion sheet are provided with expansion sheet retractable inclined grooves movably engaged with the disc-type cone sleeve.

[0006] Preferably, a vent hole connected to the disc cone sleeve is provided in the rotating cylinder, a disc cone sleeve telescopic cavity connected to the vent hole is provided between the disc cone sleeve and the rotating cylinder, and an air inlet hole connected to the vent hole is provided in the main shaft of the machine head.

[0007] Preferably, a pair of sealing rings are provided between the rotating drum and the main shaft of the machine head at both sides of the connection between the air inlet and the air vent, and a plurality of sealing rings are provided between the disc cone sleeve and the rotating drum for sealing the upper and lower ends of the telescopic cavity of the disc cone sleeve.

[0008] Preferably, a plurality of cone sleeve springs distributed in an annular shape are provided between the upper wire ring and the disc-type cone sleeve, and the cone sleeve springs enable the disc-type cone sleeve to slide and lift the expansion plate in the disc-type cone sleeve telescopic cavity.

[0009] Preferably, the outer end of the upper thread ring is provided with a front end cover of the machine head which is bolted and fixed to the upper thread ring, and an upper thread hook which is screwed and fixed to the upper thread ring is provided between the front end cover of the machine head and the upper thread ring.

[0010] Preferably, the upper wire ring is provided with a wire cutting knife pad which is screw-fixed to the upper wire ring.

[0011] Preferably, a bearing seat sleeved with the machine head main shaft is provided at the rear end of the machine head main shaft, a plurality of bearings are provided between the bearing seat and the machine head main shaft, and a bearing end cover sealed and snap-fitted with the bearing seat is provided between the bearing seat and the rear end cover of the machine head.

[0012] Preferably, a stop nut threadedly sleeved with the machine head main shaft is provided at the front end of the machine head main shaft, a limit pressure ring sleeved with the machine head main shaft is provided between the stop nut and the inner wall of the rotating drum, and the limit pressure ring is snap-fitted with the inner wall of the rotating drum.

[0013] Preferably, a locking nut threadably sleeved with the machine head main shaft is provided between the limit pressure ring and the stop nut.

[0014] The present invention can achieve the following effects:

[0015] The present invention provides a sheet expansion forced expansion and contraction device for the head of a glass fiber drawing machine, which has the characteristics of compact structure and good operation stability compared with the prior art. The forced expansion and contraction is completed in a limited head, so that the automated production can be carried out, the reliability problem of automatic unloading of the barrel is solved, and the manipulator or robot can unload the barrel normally, so as to realize the rationalization of the structure of the drawing machine and the reliability of its performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural cross-sectional view of the present invention.

[0017] In the figure: the front end cover 1 of the machine head, the upper wire hook 2, the upper wire ring 3, the disc cone sleeve 4, the expansion plate 5, the rotating drum 6, the vent 7, the expansion plate telescopic inclined groove 8, the cone sleeve spring 9, the rear end cover 10 of the machine head, the bearing end cover 11, the bearing seat 12, the machine head main shaft 13, the air inlet 14, the bearing 15, the sealing ring 16, the limit pressure ring 17, the locking nut 18, the stop nut 19, the wire cutting knife pad 20, and the disc cone sleeve telescopic cavity 21. DETAILED DESCRIPTION

[0018] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] Example: Figure 1 As shown, a device for forcing expansion and contraction of a sheet for a fiberglass drawing machine head includes a head spindle 13, on which more than 10 expansion sheets 5 are arranged in an annular pattern, a rotating drum 6 connected to the head spindle 13 and nested therebetween is arranged between the expansion sheet 5 and the head spindle 13, an upper wire ring 3 nested and fixed thereto is arranged at the front end of the rotating drum 6, a head front end cover 1 fixed to the upper wire ring 3 with bolts is arranged at the outer end of the upper wire ring 3, and an upper wire hook 2 fixed to the upper wire ring 3 with screws is arranged between the head front end cover 1 and the upper wire ring 3. The upper wire ring 3 is provided with a wire cutting knife pad 20 fixed to the upper wire ring 3 with screws. The expansion piece 5 is movably embedded in the rotating drum 6 in a step-like manner. The rear end of the rotating drum 6 is provided with a machine head rear end cover 10 which is nested and fixed with the rotating drum 6 and the machine head main shaft 13. A disc-type cone sleeve 4 which is movably inserted with the expansion piece 5 is provided between the rotating drum 6 and the upper wire ring 3, and between the rotating drum 6 and the machine head rear end cover 10. Twelve cone sleeve springs 9 distributed in a ring shape are provided between the upper wire ring 3 and the disc-type cone sleeve 4. The cone sleeve springs 9 enable the disc-type cone sleeve 4 to slide in the disc-type cone sleeve telescopic cavity 21 to lift the expansion piece 5. The rotating drum 6 is provided with a vent hole 7 connected to the disc cone sleeve 4, the head spindle 13 is provided with an air inlet hole 14 connected to the vent hole 7, the disc cone sleeve 4 and the rotating drum 6 are provided with a cone sleeve telescopic cavity 21 connected to the vent hole 7, both ends of the expansion sheet 5 are provided with expansion sheet telescopic inclined grooves 8 that are movably inserted with the disc cone sleeve 4, and the cone sleeve telescopic cavity 21 is inflated through the vent holes 7 and 14 to make the disc cone sleeve 4 slide to both sides and pull down the expansion sheet telescopic inclined grooves 8. The rear end of the head spindle 13 is provided with a bearing seat 12 that is sleeved with the head spindle 13, and two bearings 15 are provided between the front of the bearing seat 12 and the head spindle 13, and a bearing end cover 11 that is sealed and inserted with the bearing seat 12 is provided between the bearing seat 12 and the head rear end cover 10. A stop nut 19 is provided at the front end of the machine head spindle 13 and is threadedly sleeved with the machine head spindle 13. A limit pressure ring 17 is provided between the stop nut 19 and the inner wall of the rotating drum 6 and is sleeved with the machine head spindle 13. The limit pressure ring 17 is sleeved with the inner wall of the rotating drum 6. A locking nut 18 is provided between the limit pressure ring 17 and the stop nut 19 and is threadedly sleeved with the machine head spindle 13.

[0020] In the non-ventilated state, the cone sleeve spring 9 presses against the disc cone sleeve 4 and the end surface of the drum 6 to fit the disc cone sleeve 4 in a gap-type manner. At this time, the disc cone sleeve 4 presses the expansion sheet 5 tightly, and the expansion sheet 5 is in a jacking state. Then, the gas enters the disc cone sleeve telescopic cavity 21 through the air inlet 14 of the head spindle 13 through the air vent 7, pushing the disc cone sleeve 4 to compress the cone sleeve spring 9, so that the disc cone sleeve 4 completes the contraction process of the expansion sheet 5 along the expansion sheet telescopic inclined groove 8, realizing the head expansion sheet forced telescopic function, so that the expansion sheet is completely separated from the inner wall of the yarn tube.

[0021] In summary, the sheet expansion forced expansion and contraction device for the head of the glass fiber drawing machine has the characteristics of compact structure and good operation stability. The forced expansion and contraction is completed in the limited head, so that the automated production can be carried out, the reliability problem of automatic unloading of the barrel is solved, and the manipulator or robot can unload the barrel normally, realizing the rationalization of the structure of the drawing machine and the reliability of its performance.

[0022] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A sheet expansion forced expansion device for a glass fiber drawing machine head, characterized in that: The machine head main shaft (13) comprises a plurality of expansion plates (5) distributed in an annular shape, a rotating drum (6) nested and connected with the machine head main shaft (13) is provided between the expansion plates (5) and the machine head main shaft (13), a front end of the rotating drum (6) is provided with an upper wire ring (3) nested and fixed with the rotating drum (6), the expansion plates (5) and the rotating drum (6) are step-shaped and movably engaged with each other, and a rear end of the rotating drum (6) is provided with a machine head nested and fixed with the rotating drum (6) and the machine head main shaft (13). The rear end cover (10) is provided with a disc-type cone sleeve (4) movably inserted with the expansion piece (5) between the rotating drum (6) and the upper wire ring (3) and between the rotating drum (6) and the rear end cover (10) of the machine head. Both ends of the expansion piece (5) are provided with expansion piece telescopic inclined grooves (8) movably inserted with the disc-type cone sleeve (4). The rotating drum (6) is provided with a plurality of vents (7) connected with the disc-type cone sleeve (4). The disc-type cone sleeve (4) and the rotating drum (6) are provided with disc-type cone sleeve extension grooves (8) connected with the vents (7). The machine head spindle (13) is provided with an air inlet (14) connected to the air vent (7), a pair of sealing rings (16) are provided between the rotating drum (6) and the machine head spindle (13) at both ends of the connection between the air inlet (14) and the air vent (7), a plurality of sealing rings (16) are provided between the disc-type cone sleeve (4) and the rotating drum (6) for sealing the upper and lower ends of the disc-type cone sleeve telescopic cavity (21); a plurality of annularly divided sealing rings (16) are provided between the upper wire ring (3) and the disc-type cone sleeve (4). The cone sleeve spring (9) is provided with a cloth, and the cone sleeve spring (9) enables the disc cone sleeve (4) to slide in the disc cone sleeve telescopic cavity (21) to lift the lifting plate (5); the rear end of the machine head main shaft (13) is provided with a bearing seat (12) sleeved with the machine head main shaft (13), a plurality of bearings (15) are provided between the bearing seat (12) and the machine head main shaft (13), and a bearing end cover (11) is provided between the bearing seat (12) and the rear end cover (10) of the machine head and is sealed and card-engaged with the bearing seat (12).

2. The sheet expansion forced expansion device for the head of a glass fiber drawing machine according to claim 1, characterized in that: The outer end of the upper thread ring (3) is provided with a machine head front end cover (1) which is bolted and fixed to the upper thread ring (3), and an upper thread hook (2) which is screwed and fixed to the upper thread ring (3) is provided between the machine head front end cover (1) and the upper thread ring (3).

3. The sheet expansion forced expansion and contraction device for the head of a glass fiber drawing machine according to claim 1, characterized in that: The upper wire ring (3) is provided with a wire cutting knife pad (20) which is screw-connected and fixed to the upper wire ring (3).

4. The expansion and forced expansion device for the head of a glass fiber drawing machine according to claim 1, characterized in that: A stop nut (19) threadedly sleeved with the machine head main shaft (13) is provided at the front end of the machine head main shaft (13); a limit pressure ring (17) sleeved with the machine head main shaft (13) is provided between the stop nut (19) and the inner wall of the rotating drum (6); the limit pressure ring (17) is sleeved with the inner wall of the rotating drum (6) in an insert-type manner.

5. The sheet expansion forced expansion and contraction device for the head of a glass fiber drawing machine according to claim 4, characterized in that: A locking nut (18) threadedly sleeved with the machine head spindle (13) is provided between the limiting pressure ring (17) and the stop nut (19).

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