Suspended spindle and roving bobbin combined device suitable for flax wet spinning process

Abstract

The bobbin hanger and roving bobbin combination device suitable for the flax wet spinning process comprises a bobbin hanger, the bobbin hanger comprises a bobbin hanger top cover, a bobbin hanger shell, a bobbin hanger body, a conical cup push rod and a supporting piece pair, the bobbin hanger shell is inserted into the bobbin hanger top cover from the lower portion of the bobbin hanger top cover and fixed, a cavity is formed in the bobbin hanger shell, the bobbin hanger body is arranged in the cavity of the bobbin hanger shell, and the conical cup push rod is arranged in the cavity of the bobbin hanger shell. The supporting piece pair is hinged to the lower end of the suspended spindle body through a second fixing pin, the upper end of the suspended spindle body is connected with a four-claw cam, a high-position beveled locking groove and a low-position beveled locking groove are formed in the side wall of the suspended spindle shell, the four-claw cam is arranged in the high-position beveled locking groove or the low-position beveled locking groove, and the suspended spindle shell is sleeved with the conical cup push rod. The bobbin hanger and roving bobbin combination device is small in number of parts, simple in structure and reliable in movement; the bearing capacity is high, and the application range to bobbins with different weights is wide; the cost is low, and mass production is easy to realize; the device is simple to operate and suitable for automatic production lines.

Description

Technical Field

[0001] The utility model relates to a combined device of a spindle and a roving bobbin, belonging to the technical field of textile machinery parts, and particularly relates to a combined device of a spindle and a roving bobbin suitable for the flax wet spinning process. Background Art

[0002] Currently, the roving bobbins used on flax wet spinning frames are suspended on the spindles by means of hooks passing through the upper holes of the bobbins, rather than directly hooked by the spindles, resulting in a relatively complex and cumbersome roving hanging operation. This not only increases the labor intensity of the operators, reduces the work efficiency, raises the labor and machine material costs, but also is not conducive to the realization of automatic hanging and removal of the roving bobbins.

[0003] Therefore, the utility model provides a combined device of a spindle and a roving bobbin suitable for the flax wet spinning process, enabling the spindle to directly hang the roving bobbin without using a hook, so as to reduce the labor intensity of the operators, improve the work efficiency, reduce the labor and machine material costs, and at the same time contribute to the problem of realizing the automatic hanging and removal of the roving bobbins. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that the roving hanging work is relatively complex and cumbersome, increasing the labor intensity of the operators and reducing the work efficiency.

[0005] To solve the above technical problem, the technical solution of the utility model is to provide a combined device of a spindle and a roving bobbin suitable for the flax wet spinning process, including a spindle and a roving bobbin. The spindle includes a spindle top cover, a spindle housing, a spindle body, a cone cup push rod and a pair of support pieces. The longitudinal section of the spindle top cover is an inverted U shape. The spindle housing is inserted into and fixed under the spindle top cover. The spindle housing is a stepped column shape with a cavity inside. The spindle body is arranged in the cavity of the spindle housing. The pair of support pieces is hinged to the lower end of the spindle body through a second fixing pin. A four-claw cam is connected to the upper end of the spindle body. An inclined cutting claw is arranged at the lower end of the four-claw cam. High-position inclined cutting locking grooves and low-position inclined cutting locking grooves which are inwardly convex, evenly distributed and arranged at intervals are arranged on the side wall of the spindle housing. The inclined cutting claw is arranged in the high-position inclined cutting locking groove. The cone cup push rod is sleeved outside the spindle housing. A second through hole is arranged inside the roving bobbin. The lower end of the spindle housing is inserted into the second through hole of the roving bobbin, and the roving bobbin can jack up the cone cup push rod to make the cone cup push rod slide along the spindle housing, and make the inclined cutting claw switch positions between the high-position inclined cutting locking groove and the low-position inclined cutting locking groove. The pair of support pieces can extend out of the stepped cavity of the spindle housing and be clamped in the second through hole of the roving bobbin.

[0006] Optionally, the diameter of the upper inlet portion of the second through hole of the roving bobbin is smaller than that of the main body of the second through hole. A circular stepped surface is formed at the connection between the upper inlet portion and the main body portion of the second through hole. The spindle housing is inserted into the roving bobbin from the upper inlet of the second through hole, and the support piece pair can be clamped on the stepped surface.

[0007] Optionally, a first bolt extending outward from the inside is provided on the spindle top cover. The first bolt is fixed to the spindle top cover by a first nut. A dust-proof cover is provided outside the spindle top cover. The dust-proof cover is sleeved on the first bolt, and a first spring is provided between the dust-proof cover and the spindle top cover.

[0008] Optionally, a first pin hole is provided at the upper end of the spindle housing, and a first fixing pin for connecting the spindle housing and the spindle top cover is provided in the first pin hole.

[0009] Optionally, a cylindrical stepped protrusion is provided at the top of the four-jaw cam. A second spring is provided on the cylindrical stepped protrusion, and the other end of the second spring is connected to the first fixing pin.

[0010] Optionally, the four-jaw cam includes a cylindrical section. The beveled claws are evenly distributed along the circumferential direction on the edge of the cylindrical section. A first through hole is provided in the cylindrical section, and a second bolt is provided in the first through hole. A bolt hole for installing the second bolt is provided at the upper end of the spindle body. A through hole groove is provided on the side of the upper end of the spindle body, and a second nut is provided in the through hole groove. The second bolt is connected to the second nut to axially connect and fix the four-jaw cam and the spindle body, and the four-jaw cam can rotate circumferentially.

[0011] Optionally, a limiting groove is provided on the outer side wall of the spindle housing. Part of the limiting groove communicates with the high-position beveled locking groove and the low-position beveled locking groove. The conical cup push rod includes a conical cup with a larger upper diameter than the lower diameter, a cup shoulder located at the upper end of the conical cup, and evenly distributed push rods located at the upper end of the cup shoulder. The push rods are arranged in the limiting groove, and the push rods in the limiting groove communicating with the high-position beveled locking groove and the low-position beveled locking groove can contact the beveled claws.

[0012] Optionally, there are four groups of both the high-position beveled locking grooves and the low-position beveled locking grooves. The high-position beveled locking grooves and the low-position beveled locking grooves limit the four-jaw cam, and the four-jaw cam can perform axial position switching and circumferential rotation around the axis of the spindle housing through the push rods and the second spring in the high-position beveled locking grooves and the low-position beveled locking grooves.

[0013] Optionally, a second pin hole is provided at the lower end of the spindle housing, and a third fixing pin is provided in the second pin hole. The lower segments of the two support pieces of the support piece pair are bent outward, and an arc-shaped notch is provided on the outer side of the bending part. The two support pieces of the support piece pair can slide along the third fixing pin and open to both sides, and can be clamped on the third fixing pin by contacting the arc-shaped notch.

[0014] Optionally, a retracting groove for extending the support piece pair is provided at the bottom of the side surface of the spindle housing corresponding to the low-position bevel locking groove.

[0015] In summary, the combined device of the spindle and the roving bobbin of the present utility model has few parts, a simple structure and reliable movement, without an additional power source; it has a strong load-bearing capacity and a wide range of applicability to roving bobbins of different weights; it has a low cost and is easy to achieve mass production; it is simple to operate and applicable to an automated production line. Description of the Drawings

[0016] Figure 1 It is the front view of the combined device of the spindle and the roving bobbin of the present utility model;

[0017] Figure 2 It is the longitudinal sectional view of the combined device of the spindle and the roving bobbin of the present utility model in the unfolded state of the support piece pair;

[0018] Figure 3 It is the longitudinal sectional view of the spindle of the present utility model in the retracted state of the support piece pair;

[0019] Figure 4 It is the front view of the spindle housing of the present utility model;

[0020] Figure 5 It is along the Figure 4 A-A sectional view of the present utility model;

[0021] Figure 6 It is the schematic diagram of the main features of the spindle housing of the present utility model;

[0022] Figure 7 It is the front view of the taper cup push rod of the present utility model;

[0023] Figure 8 It is the connection schematic diagram of the spindle body, the four-jaw cam and the support piece pair of the present utility model;

[0024] In the figure: 1. First bolt; 2. Dust-proof shell; 3. Spindle top cover; 4. Spindle housing; 5. Second bolt; 6. Spindle body; 7. Taper cup push rod; 8. Support piece pair; 9. First spring; 10. First nut; 11. First fixing pin; 12. Second spring; 13. Four-jaw cam; 14. Second nut; 15. Second fixing pin; 16. Third fixing pin; 17. Roving bobbin; 18. Spindle; 19. Step surface; 20. High-position bevel locking groove; 21. Low-position bevel locking groove; 22. First pin hole; 23. Second pin hole; 24. Retracting groove; 25. Limiting groove; 26. Taper cup; 27. Cup shoulder; 28. Push rod; 29. Shoulder; 30. Cylindrical section; 31. Bevel cutting claw; 32. First through hole; 33. Cylindrical step protrusion; 34. Through hole groove; 35. Bolt hole; 36. Bevel surface; 37. Second through hole. Detailed implementation manners

[0025] The following will further describe in detail Figure 1-8 this utility model.

[0026] This utility model discloses a combination device of a flyer and a roving bobbin applicable to the flax wet spinning process. Referring to Figures 1 to 3 , it includes a flyer 18 and a roving bobbin 17. The flyer 18 includes a flyer top cover 3, a flyer housing 4, a flyer body 6, a cone cup push rod 7 and a pair of support pieces 8. The longitudinal section of the flyer top cover 3 is an inverted U shape. The flyer housing 4 is inserted into the flyer top cover 3 from below the flyer top cover 3 and fixed by a first fixing pin 11. The flyer housing 4 is a stepped cylindrical shape with a cavity inside. The flyer body 6 is arranged in the cavity of the flyer housing 4. The pair of support pieces 8 is hinged to the lower end of the flyer body 6 by a second fixing pin 15. A four-claw cam 13 is connected to the upper end of the flyer body 6. An inclined cutting claw 31 is arranged at the lower end of the four-claw cam 13. High-position inclined cutting locking grooves 20 and low-position inclined cutting locking grooves 21 which are inwardly convex, evenly distributed and arranged at intervals are arranged on the side wall of the flyer housing 4. The inclined cutting claw 31 is arranged in the high-position inclined cutting locking groove 20. The cone cup push rod 7 is sleeved outside the flyer housing 4. A second through hole 37 is arranged in the roving bobbin 17. The lower end of the flyer housing 4 is inserted into the second through hole 37 of the roving bobbin 17, and the roving bobbin 17 can jack up the cone cup push rod 7 to make the cone cup push rod 7 slide along the flyer housing 4 and make the inclined cutting claw 31 switch positions between the high-position inclined cutting locking groove 20 and the low-position inclined cutting locking groove 21. The pair of support pieces 8 can extend out of the stepped cavity of the flyer housing 4 and be clamped in the second through hole 37 of the roving bobbin 17.

[0027] Specifically, the diameter of the upper end inlet part of the second through hole 37 of the roving bobbin 17 is smaller than the diameter of the main body of the second through hole 37. A circular stepped surface 19 is formed at the connection between the upper end inlet part and the main body part of the second through hole 37. The flyer housing 4 is inserted into the roving bobbin 17 from the upper end inlet of the second through hole 37, and the pair of support pieces 8 can be clamped on the stepped surface 19. The diameter of the upper end inlet of the second through hole 37 is slightly larger than the diameter of the lower end of the flyer housing 4. The bottom of the flyer housing 4 is a closed structure.

[0028] In a further implementation manner, referring to Figure 3 , a first bolt 1 extending from the inside to the outside is arranged on the flyer top cover 3. The first bolt 1 is fixed on the flyer top cover 3 by a first nut 10. A dust-proof shell 2 is arranged outside the flyer top cover 3. The dust-proof shell 2 is sleeved on the first bolt 1, and a first spring 9 is arranged between the dust-proof shell 2 and the flyer top cover 3 to ensure that the dust-proof shell 2 and the flyer top cover 3 can rotate relatively. A rotating pair is formed between the flyer top cover 3 and the first bolt 1 and limited by the first nut 10, so that the combination device of the flyer 18 and the roving bobbin 17 can rotate relative to an external frame. The flyer top cover 3 and the flyer housing 4 are fixedly connected by a first fixing pin 11.

[0029] In a further embodiment, a first pin hole 22 is provided at the upper end of the ingot carrier housing 4. A first fixing pin 11 for connecting the ingot carrier housing 4 and the ingot carrier top cover 3 is provided in the first pin hole 22. A cylindrical stepped projection 33 is provided at the top of the four-jaw cam 13. A second spring 12 is provided on the cylindrical stepped projection 33, and the other end of the second spring 12 is connected to the first fixing pin 11.

[0030] In a further embodiment, referring to Figure 8 , the four-jaw cam 13 includes a cylindrical section 30 with a diameter slightly smaller than the inner diameter of the upper part of the ingot carrier housing 4. The inclined cutting claws 31 are evenly distributed along the circumference at the edge of the cylindrical section 30. A first through hole 32 is provided in the cylindrical section 30. A second bolt 5 is provided in the first through hole 32. The diameter of the first through hole 32 is slightly larger than the diameter of the second bolt 5, so that the four-jaw cam 13 can rotate circumferentially. A bolt hole 35 for installing the second bolt 5 is provided at the upper end of the ingot body 6. A through hole groove 34 is provided on the side of the upper end of the ingot body 6. A second nut 14 is provided in the through hole groove 34. The second bolt 5 is connected to the second nut 14 to axially connect and fix the four-jaw cam 13 and the ingot body 6.

[0031] In a further embodiment, referring to Figures 4 to 7 , the ingot carrier housing 4 is a cylindrical housing structure with a step, a large-diameter section at the upper end and a small-diameter section at the lower end. A shoulder 29 is provided between the two parts. A limiting groove 25 is provided on the outer side wall of the ingot carrier housing 4 to limit the circumferential rotation of the taper cup push rod 7 and ensure the axial transmission of the thrust. Part of the limiting groove 25 communicates with the high-position inclined cutting locking groove 20 and the low-position inclined cutting locking groove 21. The taper cup push rod 7 includes a taper cup 26 with a diameter larger at the upper end than at the lower end, a cup shoulder 27 located at the upper end of the taper cup 26, and evenly distributed push rods 28 located at the upper end of the cup shoulder 27. The push rods 28 are arranged in the limiting groove 25, and the push rods 28 in the limiting groove 25 communicating with the high-position inclined cutting locking groove 20 and the low-position inclined cutting locking groove 21 can contact the inclined cutting claws 31. Four groups of high-position inclined cutting locking grooves 20 and low-position inclined cutting locking grooves 21 are provided. The high-position inclined cutting locking groove 20 and the low-position inclined cutting locking groove 21 limit the four-jaw cam 13 and enable the four-jaw cam 13 to perform axial position switching and circumferential rotation around the axis of the ingot carrier housing 4 through the push rods 28.

[0032] In a further embodiment, a second pin hole 23 is provided at the lower end of the ingot carrier housing 4. A third fixing pin 16 is provided in the second pin hole 23. The lower segments of the two pieces of the piece pair 8 are bent outward. An arc-shaped notch is provided on the outer side of the bending part. The two pieces of the piece pair 8 can slide along the third fixing pin 16 and open to both sides. When contacting the arc-shaped notch, they can be clamped on the third fixing pin 16. The third fixing pin 16 limits the retracting and extending movement of the piece pair 8 and limits the stroke of the taper cup push rod 7. A retracting and extending groove 24 for the piece pair 8 to extend out is provided at the bottom of the side of the ingot carrier housing 4 corresponding to the low-position inclined cutting locking groove 21.

[0033] In the present invention, when the beveled claw 31 of the four-claw cam 13 is located in the low-position beveled locking groove 21, the support piece pair 8 is in the unfolded state and extends outward. Under the action of the third fixing pin 16, the extension length of the support piece pair 8 is greater than the diameter of the upper entrance part of the roving tube 17, so that the extended part of the support piece pair 8 contacts the stepped surface 19 of the roving tube 17. The support piece pair 8 is subjected to the gravity of the roving tube 17. Through the lever action of the third fixing pin 16, the force applied by the support piece pair 8 to the hanging ingot body 6 is radially along the hanging ingot shell 4, and the hanging ingot body 6 will not move upward, and the support piece pair 8 will not be retracted. The support piece pair 8 in the unfolded state hangs the roving tube 17, and the second bolt 5 is an M5 bolt.

[0034] In the unloaded state, the hanging ingot body 6 is located in the high-position oblique locking groove 20 of the hanging ingot housing 4, and the support piece pair 8 is retracted at this time.

[0035] When in use, the roving tube 17 is placed vertically, and the upper end of the roving tube 17 is aligned with the lower end of the hanging spindle 18, so that the roving tube 17 moves upward relative to the hanging spindle 18, and the roving tube 17 first contacts the cone cup push rod 7, and pushes the cone cup push rod 7 to move upward, and the push rod 28 of the cone cup push rod 7 moves vertically upward along the limit groove 25 on the outer wall of the hanging spindle shell 4, and pushes the hanging spindle body 6 and the four-claw cam 13 to move upward to the highest point of the beveled surface 36 of the hanging spindle shell 4, so that they are pushed out from the high-position beveled locking groove 20 on the inner wall of the hanging spindle shell 4, and compresses the second spring 12 to accumulate elastic potential energy; the cone cup push rod 7 moves to the hanging spindle shell 4 stops moving, at this time, the four-claw cam 13 will rotate circumferentially along the chamfered surface on the spindle housing 4 and the push rod 28 of the cone cup push rod 7, when the roving tube 17 and the cone cup push rod 7 move downward under gravity after the external force is removed, the four-claw cam 13 slides into the adjacent low-position chamfered locking groove 21 along the chamfered surface 36 under the action of the elastic force of the second spring 12, the spindle body 6 and the support piece pair 8 both move downward, and the support piece pair 8 extends to both sides outside the spindle housing 4 under the action of the third fixing pin 16 and is stuck on the annular stepped surface 19 of the roving tube 17, thereby clamping the roving tube 17 on the spindle 18. That is, the roving tube 17 is hoisted by the spindle 18, and the stable rotation of the entire assembly relative to the external frame is realized.

[0036] Make the roving tube 17 move upward relative to the hanging spindle 18 again, the roving tube 17 first contacts the cone cup push rod 7, and pushes the cone cup push rod 7 to move upward, the push rod 28 of the cone cup push rod 7 will move upward along the limit groove 25 on the outer wall of the hanging spindle shell 4, and push the four-claw cam 13 to move upward along the low-position oblique locking groove 21 on the inner wall of the hanging spindle shell 4, and compress the second spring 12 to accumulate elastic potential energy, the hanging spindle body 6 and the support piece pair 8 also move upward, and the support piece pair 8 is retracted; the cone cup push rod 7 moves to the hanging spindle body The four-claw cam 13 will rotate circumferentially along the beveled surfaces on the spindle housing 4 and the push rod 28 of the cone cup push rod 7. When the roving tube 17 and the cone cup push rod 7 move downward under the force of gravity after the external force is removed, the four-claw cam 13 slides into the high-position beveled locking groove 20 under the action of the elastic force of the second spring 12, and the spindle body 6 and the support plate pair 8 both move downward, and the support plate pair 8 is retracted inside the spindle housing 4, thereby realizing the separation of the roving tube 17 and the spindle 18.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A combined device of a hanging spindle and a roving tube for a flax wet spinning process, comprising a hanging spindle (18) and a roving tube (17), characterized in that: The hanging ingot (18) comprises a hanging ingot top cover (3), a hanging ingot shell (4), a hanging ingot body (6), a cone cup push rod (7) and a pair of support pieces (8); the hanging ingot top cover (3) has an inverted U-shaped longitudinal section; the hanging ingot shell (4) is inserted into the hanging ingot top cover (3) from below and fixed; the hanging ingot shell (4) is a stepped column type with a cavity provided therein; the hanging ingot body (6) is provided in the cavity of the hanging ingot shell (4); the pair of support pieces (8) is hinged to the lower end of the hanging ingot body (6) through a second fixing pin (15); the upper end of the hanging ingot body (6) is connected to a four-claw cam (13); the lower end of the four-claw cam (13) is provided with a beveled claw (31); the side wall of the hanging ingot shell (4) is provided with inwardly protruding, evenly distributed and spaced apart A high-position bevel locking groove (20) and a low-position bevel locking groove (21), the bevel claw (31) is arranged in the high-position bevel locking groove (20), the cone cup push rod (7) is sleeved on the outside of the hanging spindle shell (4), the roving tube (17) is provided with a second through hole (37), the lower end of the hanging spindle shell (4) is inserted into the second through hole (37) of the roving tube (17), and the roving tube (17) can lift the cone cup push rod (7) to make the cone cup push rod (7) slide along the hanging spindle shell (4), and make the bevel claw (31) switch between the high-position bevel locking groove (20) and the low-position bevel locking groove (21), and the support piece pair (8) can extend out of the stepped cavity of the hanging spindle shell (4) and be clamped in the second through hole (37) of the roving tube (17).

2. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 1, characterized in that: The diameter of the upper entrance portion of the second through hole (37) of the roving tube (17) is smaller than the diameter of the main body of the second through hole (37), and a circular stepped surface (19) is formed at the connection between the upper entrance portion of the second through hole (37) and the main body. The spindle housing (4) is inserted into the roving tube (17) from the upper entrance of the second through hole (37), and the support plate pair (8) can be clamped on the stepped surface (19).

3. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 1, characterized in that: The hanging ingot top cover (3) is provided with a first bolt (1) extending from the inside to the outside, and the first bolt (1) is fixed to the hanging ingot top cover (3) through a first nut (10). The hanging ingot top cover (3) is provided with a dustproof shell (2) outside, and the dustproof shell (2) is sleeved on the first bolt (1), and a first spring (9) is provided between the dustproof shell (2) and the hanging ingot top cover (3).

4. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 1, characterized in that: A first pin hole (22) is provided at the upper end of the hanging ingot shell (4), and a first fixing pin (11) for connecting the hanging ingot shell (4) and the hanging ingot top cover (3) is provided in the first pin hole (22).

5. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 4, characterized in that: A cylindrical step protrusion (33) is provided on the top of the four-claw cam (13), a second spring (12) is provided on the cylindrical step protrusion (33), and the other end of the second spring (12) is connected to the first fixing pin (11).

6. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 5, characterized in that: The four-claw cam (13) comprises a cylindrical section (30), the beveled claws (31) are evenly distributed along the circumferential direction on the edge of the cylindrical section (30), a first through hole (32) is provided on the cylindrical section (30), a second bolt (5) is provided in the first through hole (32), a bolt hole (35) for installing the second bolt (5) is provided at the upper end of the hanging ingot body (6), a through hole groove (34) is provided on the side surface of the upper end of the hanging ingot body (6), a second nut (14) is provided in the through hole groove (34), the second bolt (5) is connected to the second nut (14), the four-claw cam (13) is axially connected and fixed to the hanging ingot body (6), and the four-claw cam (13) can rotate circumferentially.

7. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 6, characterized in that: The outer wall of the hanging ingot shell (4) is provided with a limiting groove (25), wherein a part of the limiting groove (25) is connected with the high-position bevel locking groove (20) and the low-position bevel locking groove (21); the cone cup push rod (7) comprises a cone cup (26) whose upper end diameter is larger than the lower end diameter, a cup shoulder (27) located at the upper end of the cone cup (26) and a push rod (28) evenly distributed at the upper end of the cup shoulder (27); the push rod (28) is arranged in the limiting groove (25), and the push rod (28) in the limiting groove (25) connected with the high-position bevel locking groove (20) and the low-position bevel locking groove (21) can contact the bevel claw (31).

8. The spindle-roving tube assembly device suitable for flax wet spinning process according to claim 7, characterized in that: The high-position bevel locking groove (20) and the low-position bevel locking groove (21) are each provided with four groups. The high-position bevel locking groove (20) and the low-position bevel locking groove (21) limit the four-claw cam (13), and through the push rod (28) and the second spring (12), the four-claw cam (13) is switched in axial position in the high-position bevel locking groove (20) and the low-position bevel locking groove (21) and rotates circumferentially around the axis of the hanging ingot shell (4).

9. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 2, characterized in that: A second pin hole (23) is provided at the lower end of the hanging ingot shell (4), and a third fixing pin (16) is provided in the second pin hole (23). The lower sections of the two supporting plates of the supporting plate pair (8) are bent outwards, and an arc-shaped notch is provided on the outer side of the bending part. The two supporting plates of the supporting plate pair (8) can slide along the third fixing pin (16) and open to both sides, and the contact arc-shaped notch can be clamped on the third fixing pin (16).

10. The spindle and roving bobbin assembly device suitable for flax wet spinning process according to claim 9, characterized in that: A receiving and releasing groove (24) for extending the pair of supporting pieces (8) is provided at the bottom of the side surface of the hanging ingot housing (4) corresponding to the low-position oblique locking groove (21).

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