High efficiency suspension spindle roving frame

Abstract

A kind of high-efficiency suspension spindle roving frame, including support, the rear side of support is provided with strip barrel, the top of support is provided with drafting device, the front side of the top of support is provided with upper dragon muscle, the upper dragon muscle is placed with flyer, the lower of upper dragon muscle is provided with lower dragon muscle, lower dragon muscle is provided with reel corresponding with flyer;The end of the thread wing bar of flyer is provided with automatic cutting device, the compression roller group of the automatic cutting device gradually moves back with the thickness of the roving winding of reel, and will quickly jump back after moving back to a certain distance, after jumping back, the cutting knife of the two sides of compression roller group is closed to cut the roving in front of compression roller group, so that a long section of roving is reserved in front of compression roller group after cutting, after the full winding reel is removed, the compression roller group will automatically push the roving to the farthest position (realize reset), the thread end of roving is pushed to the vicinity of empty reel, realize the automatic winding of subsequent reel, realize the automatic cutting and the lap joint operation of thread end before winding.

Description

Technical Field

[0001] This invention relates to a high-efficiency suspended spindle roving frame, belonging to the field of textile equipment technology. Background Technology

[0002] Existing suspended roving frames, as shown in Chinese invention patent "Authorization Announcement No.: CN103173896B; Authorization Announcement Date: June 8, 2016; Name: Roving Frame", include a support frame, a sliver drum at the rear of the support frame, a drafting device at the top of the support frame, and a suspended upper sliver rib at the front of the top of the support frame. A spindle is rotatably mounted on the upper sliver rib, and a lower sliver rib is located below the upper sliver rib. A spool corresponding to the spindle is mounted on the lower sliver rib, and a spool is mounted on the spool. During operation, the rotation of the spindle is driven by a drive device. The sliver in the sliver drum is processed into a sliver of a specified linear density by the drafting device, and finally twisted into roving by the spindle rib. When the spool on the spool is fully wound, the worker needs to manually break the roving. When the sliver is loaded and roving needs to be wound again, the worker needs to manually load the roving onto the spool. This results in high labor intensity and low production efficiency for the workers. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical deficiencies of existing roving frames by providing a novel suspended spindle roving frame. This roving frame innovatively incorporates an automatic roving cutter at the end of the lead-out wing of the spindle. The pressure roller assembly of this automatic cutter gradually moves backward as the roving on the bobbin is wound to a certain thickness. After moving backward a certain distance, it quickly jumps backward. After jumping, the cutters on both sides of the pressure roller assembly close to cut the roving in front of the pressure roller assembly, leaving a relatively long section of roving in front of the pressure roller assembly after cutting. After the fully wound bobbin is removed, the pressure roller assembly automatically pushes the roving to its furthest position (achieving reset), pushing the roving end to the vicinity of the empty bobbin, thus achieving automatic winding of subsequent bobbins. This realizes automatic cutting and overlap of the roving end before winding, greatly reducing the labor intensity of workers and improving production efficiency.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A high-efficiency suspended roving frame includes a support frame, a sliver can at the rear of the support frame, a drafting device at the top of the support frame, and a suspended upper roving rib at the front of the top of the support frame. A spindle blade is rotatably mounted on the upper roving rib. Below the upper roving rib is a lower roving rib that moves up and down with a lifting device, and a winding drum corresponding to the spindle blade is mounted on the lower roving rib. An automatic roving cutting device is located at the end of the lead-out wing rod of the spindle blade. The automatic roving cutting device includes a pressure roller assembly, a pressure roller assembly support frame, and a transverse lead-out rod at the end of the lead-out wing rod. The upper and lower longitudinal rods of the pressure roller assembly support frame are axially inserted into the transverse lead-out rod. The upper and lower axial insertion holes on the end face of the wire rod have yarn outlet channels located at their center, corresponding to the gap between the two pressure rollers of the pressure roller assembly. Both the upper and lower axial insertion holes include fine and coarse channels arranged sequentially from the outside to the inside. A first compression spring is placed within the fine channel via blocks at the inner ends of the upper and lower longitudinal rods. A slider and a second compression spring are arranged sequentially from the outside to the inside within the coarse channel. The first and second compression springs abut against the front and rear sides of the slider, respectively, with the first compression spring fixed to the block. The coarse and fine channels... A stop is provided at the transition point of the track for the slider. A positioning device is installed inside the slider, which can lock and position the slider within the coarse-hole track near the stop. A pressure rod corresponding to the switch of the positioning device is provided on the inner side of the stop. When the inner end of the pressure rod presses against the switch of the positioning device, the positioning device releases the slider from its locking position. At this time, the elastic force of the first compression spring is also greater than that of the second compression spring. The two pressure rollers of the pressure roller group can only rotate unidirectionally in a left-right symmetrical manner. The two pressure rollers have a transitional fit with the roving. When the two pressure rollers move towards the transverse yarn exit rod, the two pressure rollers rotate... It can achieve relative sliding with the roving. When the two pressure rollers move away from the transverse lead rod, since the two pressure rollers cannot rotate in opposite directions, the two pressure rollers will carry the roving away from the transverse lead rod in sync. Cutters are respectively set on the left and right sides of the pressure roller group support. The cutters are placed on both sides of the pressure roller group support through swing plates. The hinge end of the swing plate is equipped with gears that mesh with the axial racks on both sides of the pressure roller group support. When the pressure roller group support moves towards the transverse lead rod, the two cutters swing towards each other. When the pressure roller group support moves to the position closest to the transverse lead rod, the pressure roller group is located behind the cutters, and the two cutters close together to cut the roving.

[0006] By adopting the above technical solution, a new type of suspended roving frame is provided. This roving frame innovatively incorporates an automatic roving cutter at the end of the lead-out wing of the spindle. The pressure roller assembly of this automatic cutter gradually moves backward as the roving on the drum is wound to a certain thickness. After moving backward a certain distance, it quickly jumps backward. After jumping, the cutters on both sides of the pressure roller assembly close to cut the roving in front of the pressure roller assembly, leaving a relatively long section of roving in front of the pressure roller assembly after cutting. After the fully wound drum is removed, the pressure roller assembly automatically pushes the roving to its furthest position (achieving reset), pushing the roving end to the vicinity of the empty drum, realizing automatic winding of subsequent drums. This achieves automatic cutting and overlap of the roving end before winding, greatly reducing the labor intensity of workers and improving production efficiency.

[0007] A further feature of the present invention is that baffles are provided on both sides of the pressure roller assembly support, a rack is provided on the outside of the baffles, and an axial through hole for the baffles is provided on the end face of the lead wire wing rod.

[0008] By adopting the above technical solution, baffles are set on both sides of the pressure roller bracket, which facilitates the design of the rack. At the same time, the design of the baffles can also effectively block the cutter on the outside of the pressure roller bracket.

[0009] A further configuration of the present invention is that a first compression spring is fitted onto the pressure rod.

[0010] By adopting the above technical solution, the cooperation method between the first compression spring and the pressure rod is defined.

[0011] A further configuration of the present invention is as follows: the positioning device includes a pressure block serving as a switch, which is placed in the countersunk hole in the middle of the slider, and insert rods respectively placed in the upper and lower ports of the vertical hole of the slider. The insert rods are placed in the upper and lower ports of the vertical hole through the cooperation of a third compression spring with a cover plate, a retaining ring and an inner stop. The insert rods in the upper and lower ports of the vertical hole are connected by a flexible pull wire. On the side wall of the coarse channel, near the stop, there is a positioning recess corresponding to the outer end of the insert rod. The middle part of the flexible pull wire passes through the middle countersunk hole. The pressure block in the middle countersunk hole can retract the two insert rods by laterally squeezing the flexible pull wire. When the pressure block no longer squeezes the flexible pull wire, the two insert rods extend out and insert into the positioning recess under the rebound of their respective third compression springs.

[0012] By adopting the above technical solution, the specific structure of the positioning device has been defined.

[0013] A further feature of the present invention is that the outer opening of the central countersunk hole is provided with a stop structure to prevent the pressure block from slipping off.

[0014] A further feature of the present invention is that a stop structure is provided at the outer opening of the fine channel to prevent the stop block from falling out.

[0015] By adopting the above technical solution, a stop structure to prevent slippage is set for the pressure block and the stop block, ensuring the stable operation of the device.

[0016] A further feature of the present invention is that a rotation drive device for the spindle is provided inside the upper rib, and the vertical movement of the lower rib is driven by a vertical cylinder.

[0017] By adopting the above technical solution, the driving method of the spindle and the lower rib is limited.

[0018] The main beneficial effects of this invention are:

[0019] 1. The present invention creatively sets an automatic roving cutting device at the end of the lead-out wing of the spindle. The pressure roller group of the automatic cutting device gradually moves backward as the thickness of the roving wound on the drum increases. After moving backward a certain distance, it jumps backward quickly. After jumping backward, the cutters on both sides of the pressure roller group close together to cut the roving in front of the pressure roller group, so that a relatively long section of roving is left in front of the pressure roller group after cutting. After the fully wound drum is removed, the pressure roller group automatically pushes the roving to the farthest position (achieving reset) and pushes the roving end to the vicinity of the empty drum, realizing the automatic winding of the subsequent drum. It realizes the automatic cutting and overlapping operation of the roving end before winding, which greatly reduces the labor intensity of workers and improves production efficiency.

[0020] 2. The roving frame of the present invention has baffles on both sides of the pressure roller support, which facilitates the design of the rack. At the same time, the design of the baffles can also effectively block the cutter on the outside of the pressure roller support. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged view at point A (side view of the automatic roving cutting device);

[0024] Figure 3 This is a top view of the automatic roving cutting device of the present invention;

[0025] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0026] Figure 5This is a side view of the automatic roving cutter in its retracted state;

[0027] Figure 6 This is a top view of the automatic roving cutter in its retracted state;

[0028] Figure 7 yes Figure 5 Enlarged view of point C in the middle.

[0029] In the diagram, 1. Sliver can; 2. Sliver; 3. Support; 4. Drafting device; 5. Upper spindle; 6. Spindle wing; 7. Roller; 8. Lower spindle; 9. Vertical cylinder; 10. Cylinder support plate; 11. Horizontal lead-out rod; 12. Pressure roller; 13. Upper longitudinal rod; 14. Lower longitudinal rod; 15. Stop block; 16. Pressure rod; 17. First compression spring; 18. Sliding block; 19. Second compression spring; 20. Fine channel; 21. Coarse channel; 22. Cutter; 23. Swing plate; 24. Baffle; 25. Yarn exit channel; 26. Roving; 27. Pressure block; 28. Flexible drawer; 29. ​​Insert rod; 30. Third compression spring; 31. Retaining ring; 32. Cover plate; 33. Positioning recess; 34. Central countersunk hole; 35. Vertical hole. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 7 As shown, a high-efficiency suspended roving frame includes a support 3, a sliver drum 1 is provided on the rear side of the support 3, a drafting device 4 is provided on the top of the support 3, an upper roving 5 is provided on the front side of the top of the support 3, a spindle 6 is rotatably mounted on the upper roving 5, a lower roving 8 is provided below the upper roving 5 and can move up and down with the lifting device, a winding drum 7 corresponding to the spindle 6 is provided on the lower roving 8, an automatic roving cutting device is provided at the end of the lead-out wing rod of the spindle 6, a rotation drive device for the spindle 6 is provided inside the upper roving 5, and the up and down movement of the lower roving 8 is driven by a vertical cylinder 9.

[0033] The automatic roving cutting device includes a pressure roller assembly, a pressure roller assembly support, and a transverse yarn exit rod 11 at the end of the yarn exit wing rod. The upper longitudinal rod 13 and lower longitudinal rod 14 of the pressure roller assembly support are axially inserted into the upper and lower axial insertion holes on the end face of the transverse yarn exit rod 11, respectively. A yarn exit channel 25 is located at the center of the upper and lower axial insertion holes, corresponding to the gap between the two pressure rollers 12 of the pressure roller assembly. Both the upper and lower axial insertion holes include a fine channel 20 and a coarse channel 21 arranged sequentially from the outside to the inside. A first compression spring 17 is installed in the fine channel 20 through a stop block 15 at the inner end of the upper longitudinal rod 13 and lower longitudinal rod 14. A stop structure is provided at the outer opening of the channel 20 to prevent the stop block 15 from falling out. Inside the coarse channel 21, a slider 18 and a second compression spring 19 are arranged sequentially from the outside to the inside. The first compression spring 17 and the second compression spring 19 abut against the front and rear sides of the slider 18, respectively. The first compression spring 17 is fixed to the stop block 15. A stop platform is provided at the transition between the coarse channel 21 and the fine channel 20 for the slider 18. A positioning device is provided inside the slider 18, which can lock and position the slider 18 within the coarse channel 21 near the stop platform. A pressure rod 16 corresponding to the switch of the positioning device is provided on the inner side of the stop block 15. The first compression spring... The first compression spring 17 is mounted on the pressure rod 16, and the stop block 15 is fixed to the first compression spring 17. When the inner end of the pressure rod 16 presses the switch of the positioning device, the positioning device releases the locking position of the slider 18. At this time, the elastic force of the first compression spring 17 is also greater than the elastic force of the second compression spring 19. The two pressure rollers 12 of the pressure roller group can only rotate unidirectionally in a left-right symmetrical manner. The two pressure rollers 12 and the roving 26 have a transitional fit relationship. When the two pressure rollers 12 move toward the transverse yarn outlet rod 11, the two pressure rollers 12 can achieve relative sliding with the roving 26 through rotation. When the two pressure rollers 12 move away from the transverse yarn outlet rod 11, since the two pressure rollers 12 have no... When the rollers rotate in the opposite direction, the two pressure rollers 12 will carry the roving 26 away from the transverse lead-out rod 11 in a synchronized manner. Cutters 22 are respectively provided on the left and right sides of the pressure roller group support. The cutters 22 are placed on both sides of the pressure roller group support through the swing plate 23. The hinge end of the swing plate 23 is provided with a gear that meshes with the axial rack on both sides of the pressure roller group support. The rack is located on the outside of the baffle 24 on both sides of the pressure roller group support. When the pressure roller group support moves towards the transverse lead-out rod 11, the two cutters 22 swing towards each other. When the pressure roller group support moves to the position closest to the transverse lead-out rod 11, the pressure roller group is located behind the cutter 22, and the two cutters 22 close together to cut the roving 26.

[0034] The positioning device includes a pressure block 27, which serves as a switch, installed in the central countersunk hole 34 of the slider 18, and insertion rods 29 respectively installed in the upper and lower ports of the vertical hole 35 of the slider 18. The insertion rods 29 are installed in the upper and lower ports of the vertical hole 35 through the cooperation of the cover plate 32, the retaining ring 31, and the inner stop via the third compression spring 30. The insertion rods 29 in the upper and lower ports of the vertical hole 35 are connected by a flexible pull wire 28. On the side wall of the coarse channel 21, near the stop, there is a positioning recess 33 corresponding to the outer end of the insertion rod 29. The middle part of the flexible pull wire 28 passes through the central countersunk hole 34. The pressure block 27 in the central countersunk hole 34 can retract the two insertion rods 29 by laterally pressing the flexible pull wire 28. When the pressure block 27 no longer presses the flexible pull wire 28, the two insertion rods 29 extend out of the upper and lower ports of the vertical hole 35 and insert into the positioning recess 33 under the rebound of their respective third compression springs 30. The outer opening of the central countersunk hole 34 is equipped with a stop structure to prevent the pressure block 27 from slipping off.

[0035] Operating principle:

[0036] The sliver 2 inside the sliver drum 1 is rotated and pulled by the spindle 6, and then processed by the drafting device 4 into a sliver with a specified linear density. It is then twisted into roving 26 by the spindle 5.

[0037] As the roving on the spool 7 is gradually wound to full, the pressure roller assembly support will be pushed towards the transverse lead-out rod 11. When the pressure roller assembly support moves to the position closest to the transverse lead-out rod 11, the inner end of the pressure rod 16 presses against the switch (pressure block 27) of the positioning device. At this time, the positioning device suddenly releases the locking position of the slider 18. At this time, the elastic force of the first compression spring 17 is also greater than the elastic force of the second compression spring 19. The first compression spring 17 drives the entire pressure roller assembly to move a distance towards the transverse lead-out rod 11 until the pressure roller assembly moves to the position closest to the transverse lead-out rod 11, so that the pressure roller assembly is located behind the cutter 22, which makes it convenient for the two cutters 22 to close together and cut the roving 26.

[0038] Since the two pressure rollers 12 of the pressure roller assembly can only rotate unidirectionally in a left-right symmetrical manner, the two pressure rollers 12 and the roving 26 have a transitional fit relationship. When the two pressure rollers 12 move toward the transverse yarn exit rod 11, the two pressure rollers 12 can achieve relative sliding with the roving 26 by rotating. When the two pressure rollers 12 move away from the transverse yarn exit rod 11, since the two pressure rollers 12 cannot rotate in the opposite direction, the two pressure rollers 12 will carry the roving 26 away from the transverse yarn exit rod 11 in sync.

[0039] When the pressure roller assembly support moves toward the transverse lead-out rod 11, the two cutters 22 swing toward each other. When the pressure roller assembly support moves to the position closest to the transverse lead-out rod 11, the pressure roller assembly is located behind the cutter 22, and the two cutters 22 close together to cut the roving 26.

[0040] When the pressure block 27 stops pressing the flexible wire 28, the two insertion rods 29 extend out of the upper and lower ends of the vertical hole 35 and insert into the positioning recess 33 under the rebound of their respective third compression springs 30.

Claims

1. A high-efficiency suspended roving frame, comprising a support (3), a sliver drum (1) provided on the rear side of the support (3), a drafting device (4) provided on the top of the support (3), a suspended upper roving (5) provided on the front side of the top of the support (3), a spindle wing (6) rotatably mounted on the upper roving (5), a lower roving (8) movable up and down with a lifting device provided below the upper roving (5), and a winding drum (7) corresponding to the spindle wing (6) provided on the lower roving (8); characterized in that: The spindle (6) has an automatic roving cutting device at the end of its lead-out wing rod. The automatic roving cutting device includes a pressure roller group, a pressure roller group support, and a transverse lead-out rod (11) at the end of the lead-out wing rod. The upper longitudinal rod (13) and lower longitudinal rod (14) of the pressure roller group support are respectively inserted into the upper axial insertion hole and the lower axial insertion hole on the end face of the transverse lead-out rod (11). A yarn outlet channel (25) is provided at the center of the upper axial insertion hole and the lower axial insertion hole. The yarn outlet channel (25) corresponds to the gap between the two pressure rollers (12) of the pressure roller group. The upper axial insertion hole and the lower axial insertion hole each include a fine channel (20) and a coarse channel (21) arranged sequentially from the outside to the inside. The fine channel (20) A first compression spring (17) is mounted on a stop (15) at the inner end of the upper vertical rod (13) and the lower vertical rod (14). A slider (18) and a second compression spring (19) are sequentially mounted from the outside to the inside of the coarse channel (21). The first compression spring (17) and the second compression spring (19) abut against the front and rear sides of the slider (18), respectively. The first compression spring (17) is fixed to the stop (15). A stop is provided at the transition point between the coarse channel (21) and the fine channel (20) for the slider (18). A positioning device is provided inside the slider (18) to position the slider (18) within the coarse channel (21) near the stop. The inner side of the stop block (15) is provided with a pressure rod (16) corresponding to the switch of the positioning device; when the inner end of the pressure rod (16) presses the switch of the positioning device, the positioning device releases the locking and positioning of the slider (18). At this time, the elastic force of the first compression spring (17) is also greater than the elastic force of the second compression spring (19); the two pressure rollers (12) of the pressure roller group can only rotate unidirectionally in a left-right symmetrical manner. The two pressure rollers (12) and the roving (26) have a transitional fit relationship. When the two pressure rollers (12) move toward the transverse yarn exit rod (11), the two pressure rollers (12) can achieve relative sliding with the roving (26) by rotation. When the two pressure rollers (12) move away from the transverse yarn exit rod (11), Since the two pressure rollers (12) cannot rotate in opposite directions, the two pressure rollers (12) will carry the roving (26) away from the transverse lead rod (11) in a synchronized manner; the left and right sides of the pressure roller group support are respectively provided with cutters (22), and the cutters (22) are placed on both sides of the pressure roller group support through the swing plate (23). The hinge end of the swing plate (23) is provided with a gear that meshes with the axial rack on both sides of the pressure roller group support; when the pressure roller group support moves toward the transverse lead rod (11), the two cutters (22) swing toward each other. When the pressure roller group support moves to the position closest to the transverse lead rod (11), the pressure roller group is located behind the cutter (22), and the two cutters (22) close together to cut the roving (26).

2. The high-efficiency suspension roving frame according to claim 1, characterized in that: The pressure roller assembly support is provided with baffles (24) on both sides, and the rack is provided on the outside of the baffles (24).

3. The high-efficiency suspension roving frame according to claim 1, characterized in that: The first compression spring (17) is fitted onto the pressure rod (16).

4. The high-efficiency suspension roving frame according to claim 1, characterized in that: The positioning device includes a pressure block (27) serving as a switch, which is placed in the countersunk hole (34) in the middle of the slider (18), and insert rods (29) respectively placed in the upper and lower ports of the vertical hole (35) of the slider (18). The insert rods (29) are placed in the upper and lower ports of the vertical hole (35) through the cooperation of a third compression spring (30) with a cover plate (32), a retaining ring (31) and an inner stop. The insert rods (29) in the upper and lower ports of the vertical hole (35) are connected by a flexible draw wire (28). The side wall of the coarse channel (21) A positioning recess (33) corresponding to the outer end of the insertion rod (29) is provided near the baffle. The middle part of the flexible pull wire (28) passes through the central countersunk hole (34). The pressure block (27) in the central countersunk hole (34) can retract the two insertion rods (29) by laterally squeezing the flexible pull wire (28). When the pressure block (27) no longer squeezes the flexible pull wire (28), the two insertion rods (29) extend out of the upper and lower ends of the vertical hole (35) and insert into the positioning recess (33) under the rebound of their respective third compression springs (30).

5. The high-efficiency suspension roving frame according to claim 4, characterized in that: The outer opening of the central countersunk hole (34) is provided with a stop structure to prevent the pressure block (27) from slipping.

6. The high-efficiency suspension roving frame according to claim 5, characterized in that: The outer opening of the fine channel (20) is provided with a stop structure to prevent the stop block (15) from falling out.

7. The high-efficiency suspension roving frame according to claim 1, characterized in that: The upper rib (5) is equipped with a rotation drive device for the spindle wing (6), and the lower rib (8) is driven to move up and down by a vertical cylinder (9).

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