A tension adjustment device

Abstract

The utility model relates to a kind of tension adjusting device, comprising: mounting seat, mounting seat is equipped with containing cavity, the side wall of containing cavity is equipped with baffle;Shaft, shaft penetrates containing cavity and is rotatably connected with mounting seat;Adjusting part, adjusting part is engaged with mounting seat;Elastic member, the both ends of elastic member are respectively engaged with adjusting part and shaft;Transmission part, transmission part is set on shaft and is engaged with shaft, transmission part is located in containing cavity, baffle is abutted with transmission part, transmission part is equipped with lug, lug separates containing cavity into first cavity and second cavity, lug can be abutted with baffle, the side wall of mounting seat is equipped with respectively with the first through-hole and the second through-hole of first cavity and second cavity communication;Tension rod, tension rod is engaged with shaft.The utility model relates to a kind of tension adjusting device, can improve yarn joint efficiency.

Description

Technical Field

[0001] This utility model relates to the field of adjustment device technology, and in particular to a tension adjustment device. Background Technology

[0002] Tapered yarn in a cone rotor spinning machine has excellent unwinding properties, allowing for rapid yarn exit without excessive selvage, thus improving production efficiency. Tapered yarn tools need to be used in conjunction with a tension adjustment device. This device compensates for yarn tension variations caused by various factors during yarn feeding and winding, preventing insufficient yarn tension from affecting subsequent production. Currently, the tension adjustment device involves manually rotating a tension rod away from the yarn. After the yarn is spliced, the tension rod is rotated back to the tension adjustment position, bringing it against the yarn to provide tension. The splicing process requires manual movement of the tension rod, and after splicing, it must be released back to the working position, making the splicing operation cumbersome and impossible to automate with fully automatic splicing equipment. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a tension adjustment device that can improve yarn splicing efficiency and enhance the automation of equipment operation.

[0004] To solve the above-mentioned technical problems, this utility model provides a tension adjustment device, comprising: a mounting base, wherein the mounting base has a receiving cavity, and the side wall of the receiving cavity has a stop; a rotating shaft, the rotating shaft passing through the receiving cavity and rotatably connected to the mounting base; an adjusting member, the adjusting member being engaged with the mounting base; an elastic member, the two ends of the elastic member being engaged with the adjusting member and the rotating shaft respectively; a transmission member, the transmission member being sleeved on the rotating shaft and engaged with the rotating shaft, the transmission member being located inside the receiving cavity, the stop abutting against the transmission member, the transmission member having a protrusion, the protrusion dividing the receiving cavity into a first cavity and a second cavity, the protrusion being able to abut against the stop, the side wall of the mounting base having a first through hole and a second through hole communicating with the first cavity and the second cavity respectively; and a tension rod, the tension rod being engaged with the rotating shaft.

[0005] In one embodiment of the present invention, the first through hole and the second through hole are respectively located on both sides of the stop block, and both the first through hole and the second through hole are located at the connection position between the stop block and the mounting base.

[0006] In one embodiment of the present invention, the adjusting member includes a mounting cavity, the bottom of the mounting cavity is provided with a first slot, the end of the rotating shaft is provided with a second slot, the elastic member is located in the mounting cavity, and the two ends of the elastic member are respectively engaged with the first slot and the second slot.

[0007] In one embodiment of the present invention, a connecting seat is further included. The connecting seat is sleeved on the rotating shaft and engaged with the rotating shaft. The connecting seat is provided with a third slot. The center line of the third slot is collinear with that of the second slot. The end of the elastic member is engaged with both the second slot and the third slot.

[0008] In one embodiment of this utility model, the side wall of the adjusting member is provided with a bayonet, and the mounting base is connected to a fastener, the bayonet engaging with the fastener.

[0009] In one embodiment of this utility model, a support plate is further included. The side wall of the mounting base is provided with a groove. The support plate is sleeved on the mounting base and located in the groove. The support plate abuts against the side wall of the groove. A first retaining ring and an elastic ring are also provided in the groove and sleeved on the mounting base. The first retaining ring abuts against the side wall of the groove, and the elastic ring is clamped between the first retaining ring and the support plate.

[0010] In one embodiment of this utility model, a sealing ring is also sleeved on the rotating shaft and located in the receiving cavity, the sealing ring abutting against the ends of the protrusion and the stop.

[0011] In one embodiment of this utility model, a second retaining ring and a bearing are also sleeved on the rotating shaft and located inside the receiving cavity. The bearing abuts against the side wall of the receiving cavity and is located between the second retaining ring and the sealing ring.

[0012] In one embodiment of the present invention, the end of the transmission member is provided with a sealing block, the sealing block abuts against the side wall of the receiving cavity, and the ends of the protrusion and the stop block abut against the sealing block.

[0013] In one embodiment of the present invention, the tension bar includes a receiving portion located at the end of the tension bar away from the rotating shaft.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The tension adjustment device described in this utility model adopts a pneumatic control method. Under program control, during the yarn splicing process, air enters through the connecting valve, pushing the transmission component to rotate counterclockwise and press against the protrusion in the mounting base cavity. The rotating shaft and elastic component connected to the transmission component rotate synchronously. After the tension rod connected to the rotating shaft rotates synchronously, it completes the opening action, preparing for the yarn splicing. After the yarn is connected, the connecting valve stops entering air. Under the rebound of the elastic component, the tension rod connected to the rotating shaft rotates to the initial reset state, and the tension rod begins to automatically adjust the tension of the spinning process.

[0016] Furthermore, by utilizing the frictional resistance generated by the support plate and gasket clamping the elastic ring, the rotating tension rod can stop at any position, achieving stepless adjustment of yarn tension and simplifying the structure. This utility model's tension adjustment device has a simple structure and can be applied to both semi-automatic and fully automatic spinning machines, thus improving the automation level of the equipment. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a tension adjustment device according to the present invention;

[0019] Figure 2 yes Figure 1 Partial structural diagram;

[0020] Figure 3 This is a schematic diagram of the assembly structure of the rotating shaft;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the mounting base;

[0022] Figure 5 yes Figure 4 Partial front view of the structure;

[0023] Figure 6 yes Figure 5 Sectional view at point AA;

[0024] Figure 7 This is a structural schematic diagram of the adjusting component.

[0025] Explanation of reference numerals in the accompanying drawings: 1. Mounting base; 2. Rotating shaft; 3. Tension rod; 4. Adjusting component; 5. Support plate; 6. Bearing; 11. Connecting valve; 12. Fastener; 13. First retaining ring; 14. Washer; 15. Elastic ring; 16. Second through hole; 17. Stop block; 18. First through hole; 21. Second slot; 22. First nut; 23. Transmission component; 24. Protrusion; 25. Sealing block; 26. First washer; 31. Receiving part; 32. Connecting part; 33. Second washer; 34. Third washer; 35. Second nut; 41. Fourth slot; 42. Bayonet; 43. First slot; 44. Elastic component; 45. Connecting base; 46. Third slot; 61. Second retaining ring; 62. Sealing ring; 161. Second cavity; 181. First cavity. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1 to 6 As shown, a tension adjusting device of this utility model includes: a mounting base 1, wherein the mounting base 1 has a receiving cavity and a stop block 17 is provided on the side wall of the receiving cavity; a rotating shaft 2, which passes through the receiving cavity and is rotatably connected to the mounting base 1; an adjusting member 4, which is engaged with the mounting base 1; an elastic member 44, the two ends of which are engaged with the adjusting member 4 and the rotating shaft 2 respectively; and a transmission member 23, which is sleeved on the rotating shaft 2 and engaged with the rotating shaft 2. The transmission component 23 is located inside the receiving cavity, the stop block 17 abuts against the transmission component 23, the transmission component 23 is provided with a protrusion 24, the protrusion 24 divides the receiving cavity into a first cavity 181 and a second cavity 161, the protrusion 24 can abut against the stop block 17, the side wall of the mounting base 1 is provided with a first through hole 18 and a second through hole 16 respectively communicating with the first cavity 181 and the second cavity 161; tension rod 3, the tension rod 3 is engaged with the rotating shaft 2.

[0028] In this embodiment of the tension adjustment device, when yarn splicing is required, gas is introduced into the first cavity 181 through the first through hole 18, thereby increasing the gas pressure in the first cavity 181. The gas pushes the protrusion 24 to move, thereby causing the transmission component 23 to rotate. The gas in the second cavity 161 is discharged through the second through hole 16. The rotation of the transmission component 23 drives the rotating shaft 2 to rotate, which in turn drives the tension rod 3 to rotate until the protrusion 24 abuts against the stop block 17. At this time, the tension rod 3 is located away from the yarn. After the yarn splicing is completed, the air pressure applied to the first through hole 18 is stopped. At this time, the elastic element 44 drives the rotating shaft 2 to rotate until the tension rod 3 rotates to the adjustment position, where the tension rod 3 abuts against the yarn and provides tension to the yarn. The transmission component 23 is divided into a first cavity 181 and a second cavity 161 by the protrusion 24 on the transmission component 23. After gas is introduced into the first cavity 181, the transmission component 23 can drive the rotating shaft 2 to rotate, which in turn drives the tension rod 3 to rotate. The stop block 17 allows the tension rod 3 to rotate to a position away from the yarn, so that the tension rod 3 does not need to be manually rotated. Multiple tension adjustment devices can work at the same time, so that multiple yarns can be spliced ​​at the same time, improving the yarn splicing efficiency.

[0029] Mounting base 1 is tubular in shape and has a receiving cavity inside. The side wall of the receiving cavity is provided with a stop 17, which extends along the axial direction of mounting base 1.

[0030] Reference Figure 3 and Figure 6As shown, the rotating shaft 2 passes through the receiving cavity along the axial direction of the mounting base 1 and is rotatably connected to the mounting base 1. Specifically, the rotating shaft 2 is fitted with a second retaining ring 61 and a bearing 6 located in the receiving cavity. The bearing 6 is located near the top of the mounting base 1 and abuts against the side wall of the receiving cavity. The second retaining ring 61 abuts against the top of the bearing 6, thereby rotatably connecting the rotating shaft 2 and the mounting base 1.

[0031] The transmission component 23 is sleeved on and engaged with the rotating shaft 2. Specifically, the transmission component 23 has an axially oriented waist-shaped mating hole. The rotating shaft 2 passes through the transmission component 23 along the mating hole, and the mating position of the rotating shaft 2 and the transmission component 23 fits into the mating hole, thereby engaging the rotating component with the rotating shaft 2, and enabling the transmission component 23 to drive the rotating shaft 2 to rotate. The transmission component 23 is located within the receiving cavity, and the stop block 17 abuts against the side wall of the transmission component 23. The side of the stop block 17 that abuts against the transmission component 23 is arc-shaped and fits into the transmission component 23.

[0032] The transmission component 23 has a protrusion 24 on its side wall, which divides the receiving cavity into a first cavity 181 and a second cavity 161. Specifically, a sealing ring 62 is also fitted on the rotating shaft 2. The bottom side of the sealing ring 62 abuts against the ends of the protrusion 24 and the stop block 17, and the top side of the sealing ring 62 abuts against the bearing 6, thereby positioning the bearing 6 between the second stop ring 61 and the sealing ring 62, thus fixing the position of the bearing 6. A sealing block 25 is provided at the end of the transmission component 23 away from the sealing ring 62. The sealing block 25 abuts against the side wall of the sealing cavity, thereby forming a sealed cavity between the sealing ring 62 and the sealing block 25 in the receiving cavity. The bottom ends of the protrusion 24 and the stop block 17 abut against the sealing block 25, thereby forming the first cavity 181 and the second cavity 161 on both sides of the protrusion 24. Preferably, the protrusion 24, the transmission component 23, and the sealing block 25 are integrally formed, thereby improving the sealing performance of the first cavity 181 and the second cavity 161.

[0033] Reference Figure 4 and Figure 6As shown, the side wall of the mounting base 1 is provided with a first through hole 18 and a second through hole 16, which are respectively connected to the first cavity 181 and the second cavity 161. Specifically, the first through hole 18 is connected to the first cavity 181, and the second through hole 16 is connected to the second cavity 161. A connecting valve 11 is sealed to the first through hole 18, and the connecting valve 11 is connected to an external air supply device. Gas is introduced into the first cavity 181 through the air supply device, thereby increasing the air pressure inside the first cavity 181. This air pressure causes the protrusion 24 to move, which in turn causes the transmission component 23 to drive the rotating shaft 2 to rotate. During its movement, the protrusion 24 can abut against the stop block 17, thus stopping its movement. By controlling the air pressure in the first cavity 181, the protrusion 24 can be moved to different positions, causing the rotating shaft 2 to rotate at different angles, which in turn causes the tension rod 3 to rotate to different positions, providing different tensions to the yarn. When the protrusion 24 moves, the volume of the second cavity 161 decreases, and the gas is discharged through the second through hole 16. Preferably, the first through hole 18 and the second through hole 16 are located on both sides of the stop block 17, and both the first through hole 18 and the second through hole 16 are located at the connection position between the stop block 17 and the mounting base 1, so that part of the first through hole 18 and the second through hole 16 passes through the stop block 17, forming an air passage on the stop block 17. Thus, when the protrusion 24 is in contact with the stop block 17, air can be supplied to the first through hole 18 to make the protrusion 24 move. In another embodiment, the connecting valve 11 can also be connected to an external liquid supply device, so that the rotating shaft 2 can be rotated by introducing liquid into the first cavity 181.

[0034] Reference Figure 4 and Figure 7 As shown, the adjusting member 4 is cylindrical in shape, and the two ends of the elastic member 44 are respectively engaged with the adjusting member 4 and the rotating shaft 2. Specifically, the elastic member 44 can be regarded as a torsion spring. The adjusting member 4 includes a mounting cavity, and the bottom of the mounting cavity is provided with a first slot 43, which is arranged radially along the adjusting member 4. The top of the rotating shaft 2 is provided with a second slot 21. The elastic member 44 is located in the mounting cavity, and both ends of the elastic member 44 are provided with bent portions. The two bent portions extend into the first slot 43 and the second slot 21 respectively, so that the two ends of the elastic member 44 are respectively engaged with the adjusting member 4 and the rotating shaft 2. By rotating the adjusting member 4, the rotating shaft 2 can be rotated. Preferably, the outer top of the adjusting member 4 is also provided with two symmetrically arranged fourth slots 41. The fourth slots 41 are provided to facilitate the fixation of the adjusting member 4 by hand, thereby facilitating the rotation of the adjusting member 4 by personnel.

[0035] The tension adjustment device also includes a connecting seat 45, which is sleeved on and engaged with the rotating shaft 2, allowing the rotating shaft 2 to drive the connecting seat 45 to rotate. The bottom side of the connecting seat 45 abuts against the second retaining ring 61. The top of the connecting seat 45 is provided with a third retaining groove 46, through which the rotating shaft 2 passes, and the top of the rotating shaft 2 is coplanar with the top of the connecting seat 45. The center lines of the third retaining groove 46 and the second retaining groove 21 are collinear, meaning that the third retaining groove 46 and the second retaining groove 21 are located on the same straight line, thereby allowing the bent portion at the end of the elastic member 44 to engage with both the second retaining groove 21 and the third retaining groove 46 simultaneously, making the engagement between the elastic member 44 and the rotating shaft 2 more stable. Preferably, the top of the connecting seat 45 is also provided with a receiving groove arranged circumferentially around the connecting seat 45. The receiving groove is generally annular and is used to receive the end of the elastic member 44, thereby making the engagement between the elastic member 44 and the connecting seat 45 more stable.

[0036] The bottom edge of the side wall of the adjusting member 4 is provided with opposing slots 42, and the adjusting member 4 is sleeved on the top of the mounting base 1. The top side wall of the mounting base 1 is connected to a fastener 12, which can be regarded as a bolt. After the elastic member 44 is installed, the adjusting member 4 is rotated to a certain angle and then pressed down. Then the mounting base 1 is connected to the fastener 12, and the fastener 12 passes through the slot 42, so that the slot 42 is engaged with the fastener 12, thereby fixing the position of the adjusting member 4. Preferably, multiple slots 42 can be provided on the adjusting member 4, so that the adjusting member 4 can rotate at different angles, thereby allowing the rotating shaft 2 to rotate at different angles, which facilitates the adjustment of the position of the tension rod 3.

[0037] The tension adjustment device also includes a support plate 5. The outer sidewall of the mounting base 1 has a circumferentially oriented groove. The support plate 5 is fitted onto the mounting base 1 and located within the groove, with a gap between the support plate 5 and the bottom of the groove. The end face of the support plate 5 abuts against the sidewall of the groove. A first retaining ring 13 and an elastic ring 15 are also fitted onto the mounting base 1 within the groove. The first retaining ring 13 abuts against the sidewall of the groove away from the support plate 5. The elastic ring 15 is clamped between the first retaining ring 13 and the support plate 5, applying a certain pressure to the elastic ring 15. The support plate 5 is connected to the outside. By rotating the mounting base 1, the position of the tension rod 3 can be adjusted. Due to the friction between the elastic ring 15 and the support plate 5, the mounting base 1 can only rotate after a certain force is applied, preventing the mounting base 1 from shaking during operation and allowing for stepless adjustment of the tension rod 3's position. Preferably, a gasket 14 is provided between the elastic ring 15 and the first retaining ring 13. By utilizing the frictional resistance generated by the support plate 5 and the gasket 14 clamping the elastic ring 15, the rotating tension rod 3 can stop at any position, realizing stepless adjustment of yarn tension and simplifying the structure.

[0038] Reference Figure 1As shown, the tension bar 3 includes a receiving portion 31, which is arc-shaped and located at the end of the tension bar 3 away from the rotating shaft 2. The receiving portion 31 is used to receive and abut against the yarn. A first washer 26 is also fitted on the rotating shaft 2. The first washer 26 can be considered as a flat washer. The rotating shaft 2 is also threadedly connected to a first nut 22. The first washer 26 abuts against the sealing block 25, and the first nut 22 abuts against the first washer 26, thereby fixing the position of the transmission component 23. A second washer 33 and a third washer 34 are also fitted on the rotating shaft 2. The second washer 33 can be considered as a flat washer, and the third washer 34 can be considered as a spring washer. The rotating shaft 2 is also threadedly connected to a second nut 35, and the third washer 34 is located between the second washer 33 and the second nut 35. The tension rod 3 has a connecting part 32 at the end away from the receiving part 31. The connecting part 32 is bent and sleeved on the rotating shaft 2. The connecting part 32 is located between the second washer 33 and the first nut 22. By rotating the second nut 35, the connecting part 32 is clamped between the second washer 33 and the first nut 22, thereby fixing the position of the tension rod 3.

[0039] When yarn splicing is required, under program control, an external air supply device introduces gas into the first cavity 181 through the first through hole 18, thereby increasing the gas pressure in the first cavity 181. The gas pushes the protrusion 24 to move, causing the transmission component 23 to rotate. During the movement of the protrusion 24, the volume of the second cavity 161 decreases, and the gas in the second cavity 161 is discharged through the second through hole 16. The rotation of the transmission component 23 synchronously drives the rotating shaft 2 and the elastic component 44 to rotate, which in turn drives the tension rod 3 to rotate synchronously until the protrusion 24 abuts against the stop block 17. At this time, the tension rod 3 is located away from the yarn and has completed the opening action, preparing for yarn splicing. After the yarn splicing is completed, the air supply to the first through hole 18 is stopped, and the air pressure in the first cavity 181 decreases. At this time, under the rebound of the elastic component 44, the elastic component 44 drives the rotating shaft 2 to rotate until the tension rod 3 rotates to the initial reset state. The receiving part 31 of the tension rod 3 abuts against the yarn and provides tension to the yarn. The tension rod 3 begins to automatically adjust the tension of the spinning state. By controlling the air pressure in the first cavity 181, the tension rod 3 is rotated to different positions, thereby providing different tensions to the yarn.

[0040] This utility model discloses a tension adjustment device. The receiving cavity is divided into a first cavity 181 and a second cavity 161 by a protrusion 24 on the transmission component 23. When gas is introduced into the first cavity 181, the transmission component 23 drives the rotating shaft 2 to rotate, which in turn drives the tension rod 3 to rotate. A stop block 17 allows the tension rod 3 to rotate to a position away from the yarn, eliminating the need for manual rotation. Multiple tension adjustment devices can operate simultaneously, enabling simultaneous splicing of multiple yarns and improving splicing efficiency. The elastic ring 15 and support plate 5 utilize the frictional resistance generated by the support plate 5 and gasket 14 clamping the elastic ring 15 to apply a certain force to the mounting base 1 before it can rotate. This prevents the mounting base 1 from shaking during operation, while allowing the tension rod 3 to stop at any position, achieving stepless adjustment of yarn tension and simplifying the structure. This tension adjustment device has a simple structure and can be applied to semi-automatic and fully automatic spinning machines, contributing to improved equipment automation.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A tension adjusting device, characterized in that, include: The mounting base has a receiving cavity inside, and the side wall of the receiving cavity is provided with a stop block; A rotating shaft passes through the receiving cavity and is rotatably connected to the mounting base; Adjustment component, which engages with the mounting base; An elastic element, the two ends of which are respectively engaged with the adjusting element and the rotating shaft; A transmission component is sleeved on and engaged with the rotating shaft. The transmission component is located within the receiving cavity. The stop block abuts against the transmission component. The transmission component is provided with a protrusion that divides the receiving cavity into a first cavity and a second cavity. The protrusion abuts against the stop block. The side wall of the mounting base is provided with a first through hole and a second through hole that communicate with the first cavity and the second cavity, respectively. A tension rod, which is engaged with the rotating shaft.

2. The tension adjusting device according to claim 1, characterized in that: The first through hole and the second through hole are located on both sides of the stop block, and both the first through hole and the second through hole are located at the connection position between the stop block and the mounting base.

3. The tension adjusting device according to claim 1, characterized in that: The adjusting component includes a mounting cavity, the bottom of which is provided with a first slot, and the end of the rotating shaft is provided with a second slot. The elastic element is located inside the mounting cavity, and both ends of the elastic element are respectively engaged with the first slot and the second slot.

4. The tension adjusting device according to claim 3, characterized in that: It also includes a connecting seat, which is sleeved on the rotating shaft and engaged with the rotating shaft. The connecting seat has a third slot, which is collinear with the center line of the second slot. The end of the elastic member is engaged with both the second slot and the third slot.

5. The tension adjusting device according to claim 1, characterized in that: The side wall of the adjusting component is provided with a bayonet, and the mounting base is connected to a fastener, with the bayonet engaging with the fastener.

6. The tension adjusting device according to claim 1, characterized in that: It also includes a support plate. The side wall of the mounting base is provided with a groove. The support plate is sleeved on the mounting base and located in the groove. The support plate abuts against the side wall of the groove. The groove is also provided with a first retaining ring and an elastic ring sleeved on the mounting base. The first retaining ring abuts against the side wall of the groove. The elastic ring is clamped between the first retaining ring and the support plate.

7. The tension adjusting device according to claim 1, characterized in that: A sealing ring is also fitted on the rotating shaft and located inside the receiving cavity. The sealing ring abuts against the ends of the protrusion and the stop.

8. The tension adjusting device according to claim 7, characterized in that: The rotating shaft is also fitted with a second retaining ring and a bearing located inside the receiving cavity. The bearing abuts against the side wall of the receiving cavity and is located between the second retaining ring and the sealing ring.

9. The tension adjusting device according to claim 1, characterized in that: The end of the transmission component is provided with a sealing block, which abuts against the side wall of the receiving cavity, and the ends of the protrusion and the stop block abut against the sealing block.

10. The tension adjusting device according to claim 1, characterized in that: The tension bar includes a receiving portion located at the end of the tension bar away from the pivot.

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