Groove drum for glass fiber direct yarn drawing machine

Abstract

The utility model relates to the technical field of glass processing, and discloses a groove drum for a glass fiber direct yarn drawing machine, when a servo motor rotates, a central shaft of a transmission case is driven, the central shaft drives a groove drum shaft to rotate through a coupler, and the rotating direction is the right-angle tooth direction of the coupler. The two rows of angular contact bearings are arranged on the central shaft of the transmission case in a back-to-back mode, the axial force of the groove drum shaft can be well borne, and the situation that the servo motor is damaged due to the axial force when the servo motor and the groove drum shaft are directly connected is avoided. The groove drum shaft is of a split type structure, after a groove body of the spiral cylindrical cam on the groove drum shaft is abraded, only the spiral cylindrical cam needs to be replaced, meanwhile, due to the fact that the spiral cylindrical cam is of the standard size and can be made into a standard part, stock-up of a glass fiber factory is facilitated, cost is reduced, and the machining period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of glass processing, in particular to a bobbin for a glass fiber direct yarn drawing machine. Background Technique

[0002] Glass fiber is an excellent inorganic non-metallic material, which is wound by a glass fiber drawing machine from molten glass liquid. At present, glass fiber drawing machines are divided into cake yarn drawing machines and direct yarn drawing machines according to the shape of the wound bobbins, and the difference lies in the shape of the bobbins. The bobbin drawn by the direct yarn drawing machine belongs to a non-twisted bobbin, and its characteristic is that each bobbin is formed by the bundled winding of multiple (generally several hundred to thousands) parallel single filaments, and the outer circle of the bobbin is a standard cylindrical shape. The key device for forming a cylindrical bobbin is the bobbin mechanism of the direct yarn drawing machine.

[0003] At present, there are two transmission methods for the bobbins of direct yarn drawing machines on the market: synchronous belt transmission and direct connection transmission with a plum coupling. The structural form of the bobbin is a reciprocating spiral cylindrical cam mechanism. The cylindrical cam is engraved with left-handed and right-handed helical grooves that cross each other, and the two helical grooves are connected by a smooth circular arc at the head and tail. The cylindrical cam is mostly processed from an alloy steel solid rod. The reciprocating spiral pitch is 62.5 mm, and each section of the reciprocating spiral is 4 pitches, with a total length of 250 mm. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a bobbin for a glass fiber direct yarn drawing machine, aiming to improve the problem that it is inconvenient to operate on-site when the couplings at both ends need to be aligned at an angle during replacement and maintenance in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a bobbin for a glass fiber direct yarn drawing machine, including a bobbin shell, a bobbin shaft coupling, and a transmission box.

[0006] The left side of the grooved drum shell is equipped with a front bearing chamber; the connecting plate of the grooved drum shell is connected to the front bearing chamber by screws and then connected to the grooved drum bracket; the locking ring is installed on the right side of the grooved drum bracket and is connected to the grooved drum bracket by screws; the water inlet pipe is installed above the grooved drum shell and is connected to the grooved drum shell by screws; the grooved drum shaft is installed inside the grooved drum shell. On the left side of the grooved drum shaft (with the shaft step facing left), a labyrinth ring one, an end face seal ring one, a bearing spacer, a rotary oil seal, and a deep groove ball bearing are installed in sequence, and finally fixed on the grooved drum shaft through the front bearing pressing plate. The bearing pressing plate is connected to the grooved drum shaft by screws; on the right side of the grooved drum shaft (with the shaft step facing right), the labyrinth ring two, the end face seal ring one, the bearing spacer, the rotary oil seal, the labyrinth ring three, and a cylindrical roller bearing are installed in sequence, and finally fixed inside the grooved drum shell through a bearing retaining ring. The bearing retaining ring is fixed axially by a snap ring installed inside the grooved drum shell; the left part of the coupling is fixed to the right side of the grooved drum shaft by screws, and the left end face of the coupling presses the cylindrical roller bearing. The right part of the coupling is on the central shaft inside the transmission box; the transmission box is installed on the grooved drum bracket through the transmission box fixing bracket, and the transmission box fixing bracket is connected to the grooved drum bracket by screws; a servo motor is installed on the right side of the transmission box, and the servo motor is connected to the transmission box by screws.

[0007] Further, the grooved drum shaft includes a grooved drum core shaft, a grooved drum shaft spiral cylindrical cam, and a key. The grooved drum core shaft and the grooved drum shaft spiral cylindrical cam are in sliding fit, and torque is transmitted through the key.

[0008] Further, the transmission box includes a central shaft, a bearing cover, a locking nut, angular contact bearings, a box body, an inner spacer, and an outer spacer; the locking nut, angular contact bearings, and inner spacer are installed on the central shaft in sequence. The bearing cover is connected to the box body by screws, and the outer spacer is installed between two columns of angular contact bearings inside the box body. The right side of the central shaft is a keyway hole, and torque is transmitted through a key with the shaft of the servo motor.

[0009] Further, the coupling is divided into left and right parts, and the meshing method is end face combined tooth meshing.

[0010] The utility model has the following beneficial effects:

[0011] 1. The grooved drum shaft is of a split structure. After the groove of the spiral cylindrical cam on the grooved drum shaft is worn, only the spiral cylindrical cam needs to be replaced. At the same time, because the spiral cylindrical cam is of standard size, it can be made into a standard part, which is convenient for fiberglass factories to stock up, reducing costs and shortening the processing cycle.

[0012] 2. The non-standard designed end face combined tooth coupling with a guiding angle can be automatically aligned and meshed at any angle when the user replaces the grooved drum. At the same time, the concentricity requirements of the two side box bodies are reduced, and the installation is convenient. Brief Description of the Drawings

[0013] Figure 1 This is a schematic diagram of the present utility model;

[0014] Figure 2 This is a schematic diagram of the present utility model;

[0015] Figure 3 This is a schematic diagram of the present utility model;

[0016] Figure 4 This is a schematic diagram of the present utility model;

[0017] Figure 5 This is a schematic diagram of the present utility model;

[0018] Legend Explanation:

[0019] Groove drum shell connecting plate 1, front bearing housing 2, groove drum shell 3, water inlet pipe 4, groove drum shaft 5, groove drum bracket 6, locking ring 7, coupling 8, transmission box 9, transmission box fixing frame 10, servo motor 11, front bearing pressing plate 12, deep groove ball bearing 13, rotary oil seal 14, bearing spacer 15, labyrinth ring one 16, end face sealing ring one 17, labyrinth ring two 18, labyrinth ring three 19, cylindrical roller bearing 20, bearing pressing ring 21. Detailed Description of the Preferred Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Referring to Figures 1-5 , an embodiment provided by the present utility model: A groove drum of a glass fiber direct yarn drawing machine includes: a groove drum shell 3, a groove drum shaft 5, a coupling 8, and a transmission box 9.

[0022] The front bearing housing 2 is installed on the left side of the grooved drum shell 3; the grooved drum shell connecting plate 1 is connected to the front bearing housing 2 by screws and then connected to the grooved drum bracket 6; the locking ring 7 is installed on the right side of the grooved drum bracket 6 and is screwed to the grooved drum bracket 6 for clamping the grooved drum shell 3; the water inlet pipe 4 is installed above the grooved drum shell 3 and is screwed to the grooved drum shell 3; the grooved drum shaft 5 is installed inside the grooved drum shell 3. On the left side of the grooved drum shaft, a labyrinth ring one 16, an end face sealing ring one 17, a bearing spacer 15, a rotary oil seal 14, and a deep groove ball bearing 13 are sequentially installed from left to right along the shaft step, and finally fixed on the grooved drum shaft 5 through the front bearing pressing plate 12. The bearing pressing plate 12 is screwed to the grooved drum shaft 5; on the right side of the grooved drum shaft 5, the labyrinth ring two 18, the end face sealing ring one 17, the bearing spacer 15, the rotary oil seal 14, the labyrinth ring three 19, and a cylindrical roller bearing 20 are sequentially installed from right to left along the shaft step, and finally fixed inside the grooved drum shell through the bearing retaining ring 21. The bearing retaining ring 21 is axially positioned by a snap ring installed inside the grooved drum shell 3; the left part of the coupling 8 is fixed to the right side of the grooved drum shaft 5 by screws, and the left end face of the coupling presses the cylindrical roller bearing 20. The right part of the coupling 8 is on the central shaft inside the transmission box 9; the transmission box 9 is installed on the grooved drum bracket 6 through the transmission box fixing bracket 10, and the transmission box fixing bracket 10 is screwed to the grooved drum bracket 6; a servo motor 11 is installed on the right side of the transmission box 9, and the servo motor 11 is screwed to the transmission box 9. See Figure 1 。

[0023] The grooved drum shaft 5 includes a grooved drum core shaft 5-1, a grooved drum shaft spiral cylindrical cam 5-2, and a key 5-3. The grooved drum core shaft 5-1 and the grooved drum shaft spiral cylindrical cam 5-2 are in sliding fit, and torque is transmitted through the key 5-3. See Figure 2 。

[0024] The transmission box 9 includes a central shaft 9-1, a bearing gland 9-2, a locking nut 9-3, an angular contact bearing 9-4, a box body 9-5, an inner spacer 9-6, and an outer spacer 9-7; the locking nut 9-3, the angular contact bearing 9-4, and the inner spacer 9-6 are sequentially installed on the central shaft 9-1. The bearing gland 9-2 is screwed to the box body 9-5, and the outer spacer 9-7 is installed between two columns of angular contact bearings inside the box body 9-5. The right side of the central shaft 9-1 is a keyway hole, and torque is transmitted to the shaft of the servo motor 11 through a key. See Figure 3 。

[0025] The coupling 8 is divided into left and right parts, and the meshing method is end face combined tooth meshing; for easy alignment during installation, it is designed as an asymmetric combined tooth with a guiding angle. See Figure 4 、 Figure 5 。

[0026] Working principle: When the servo motor (11) rotates, it drives the central shaft (9-1) of the transmission box (9). The central shaft (9-1) drives the grooved drum shaft (5) to rotate through the coupling (8), and the rotation direction is along the right-angle tooth direction of the coupling (8) (see Figure 4 as shown). Two rows of angular contact bearings are arranged back-to-back on the central shaft (9-1) of the transmission box (9), which can well bear the axial force of the grooved drum shaft and avoid the damage of the servo motor caused by the axial force due to the direct connection between the servo motor and the grooved drum shaft.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A grooved drum for a glass fiber direct yarn drawing machine, characterized in that: include: The grooved drum shell (3), the water inlet pipe (4), the grooved drum shaft (5), the locking ring (7), the coupling (8), the transmission box (9), the transmission box fixing frame (10), the front bearing pressure plate (12) and the second labyrinth ring (18), The front bearing chamber (2) is installed on the left side of the groove drum shell (3); the groove drum shell connecting plate (1) is connected to the front bearing chamber (2) by screws and then connected to the groove drum bracket (6); the locking ring (7) is installed on the right side of the groove drum bracket (6) and is screwed to the groove drum bracket (6); the water inlet pipe (4) is installed above the groove drum shell (3) and is screwed to the groove drum shell (3); the groove drum shaft (5) is installed in the groove drum shell (3), and the left side of the groove drum shaft is installed with a labyrinth ring 1 (16), an end face sealing ring 1 (17), a bearing spacer (15), a rotary oil seal (14), and a deep groove ball bearing (13) in sequence, and finally fixed to the groove drum shaft (5) through the front bearing pressure plate (12), and the bearing pressure plate (12) is screwed to the groove drum shaft (5); the right side of the groove drum shaft (5) is installed with the labyrinth ring 2 (18), The end face sealing ring (17), the bearing spacer (15), the rotary oil seal (14), the labyrinth ring (19), and the cylindrical roller bearing (20) are finally fixed in the groove drum shell by a bearing pressure ring (21), and the bearing pressure ring (21) is fixed in axial position by a retaining ring through a hole installed in the groove drum shell (3); the left side part of the coupling (8) is fixed to the right side of the groove drum shaft (5) by screws, and the left end face of the coupling presses the cylindrical roller bearing (20), and the right side part of the coupling (8) is on the central axis in the transmission box (9); the transmission box (9) is installed on the groove drum bracket (6) through the transmission box fixing frame (10), and the transmission box fixing frame (10) is connected to the groove drum bracket (6) by screws; a servo motor (11) is installed on the right side of the transmission box (9), and the servo motor (11) is connected to the transmission box (9) by screws.

2. The grooved drum for a glass fiber direct yarn drawing machine according to claim 1, characterized in that: The grooved barrel shaft (5) comprises a grooved barrel core shaft (5-1), a grooved barrel shaft spiral cylindrical cam (5-2), and a key (5-3); the grooved barrel core shaft (5-1) and the grooved barrel shaft spiral cylindrical cam (5-2) are slidably matched, and torque is transmitted via the key (5-3).

3. The grooved drum for a glass fiber direct yarn drawing machine according to claim 1, characterized in that: The transmission box (9) comprises a central shaft (9-1), a bearing cover (9-2), a locking nut (9-3), an angular contact bearing (9-4), a housing (9-5), an inner spacer (9-6), and an outer spacer (9-7); the locking nut (9-3), the angular contact bearing (9-4), and the inner spacer (9-6) are sequentially mounted on the central shaft (9-1); the bearing cover (9-2) and the housing (9-5) are connected by screws; the outer spacer (9-7) is mounted between two rows of angular contact bearings inside the housing (9-5); the right side of the central shaft (9-1) is a hole with a keyway, and torque is transmitted to the shaft of the servo motor (11) via a key.

4. The grooved drum for a glass fiber direct yarn drawing machine according to claim 1, characterized in that: The coupling (8) is divided into two parts, the left and the right, and the meshing method is end face combined tooth meshing.

Images