Main swing arm locking mechanism

Abstract

The utility model provides a kind of main swing arm locking mechanism, belong to textile equipment technical field.It solves the technical problem of existing locking technology operation cumbersome etc..The main swing arm locking mechanism of the present application, including the lock post of axial limit being arranged on upper support, the lock hole is equipped on the main swing arm below lock post, at least one radial protruding locking pin is equipped on lock post and is distributed along circumference, at least one locking pin guide slot is equipped on the inner wall of lock hole and is distributed along circumference and extends axially, locking pin guide slot at least one side is equipped with the circumferential lock slot being communicated with locking pin guide slot, the circumferential lock slot and the outer end between lock hole form axial blocking pin block, the axial blocking pin block and / or lock post are connected with rotating assembly.The utility model has the advantages of reliable locking, simple locking operation, low maintenance cost etc..

Description

Technical Field

[0001] This utility model belongs to the field of textile equipment technology, and in particular relates to a main swing arm locking mechanism. Background Technology

[0002] Sock knitting machines are automated knitting devices in the textile industry. The function of their main swing arm locking mechanism is to reliably lock the main swing arm at specific process stages. Traditional main swing arm locking mechanisms often use pin-type, snap-on, or bolt-fixed structures, which suffer from cumbersome operation.

[0003] The locking mechanisms commonly used in existing technologies often rely on manual operation, which is cumbersome and not only leads to low overall production efficiency, but also makes them prone to loosening, misalignment or wear under high-speed operation or frequent start-stop conditions, affecting the overall operational stability of the equipment and product quality. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a main swing arm locking mechanism for a sock machine that can automatically lock and unlock with simple operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The main swing arm locking mechanism includes a locking post axially limited on the upper support, a locking hole on the main swing arm below the locking post, at least one locking pin distributed circumferentially and protruding radially on the locking post, at least one locking pin guide groove distributed circumferentially and extending axially on the inner wall of the locking hole, a circumferential locking groove communicating with the locking pin guide groove on at least one side, an axial stop pin block formed between the circumferential locking groove and the outer end of the locking hole, and a rotating component connected to the axial stop pin block and / or the locking post.

[0006] By driving the rotating assembly to rotate the locking pin, the locking pin slides into the circumferential locking groove that communicates with the locking pin guide groove, automatic locking can be completed. This is simple to operate and improves overall production efficiency. Furthermore, the axial stop pin provides mechanical stopping, avoiding the instability of locking based solely on friction or elastic elements, resulting in high locking reliability.

[0007] In the aforementioned main swing arm locking mechanism, the rotating component includes a linear actuator disposed between the locking pin and the upper support. One end of the linear actuator is hinged to the upper support, and the other end is hinged to the locking pin and offset from its rotation center. Utilizing the pushing / pulling force of the linear actuator, a torque is generated to drive the locking pin to rotate by creating a lever arm offset from the center. This transmission method features a short transmission chain, low energy loss, and rapid response.

[0008] In the aforementioned main swing arm locking mechanism, a rotating arm is fixed to the upper end of the locking pin. The other end of a linear actuator is hinged to the rotating arm, with the hinge point offset from the rotation center of the locking pin. This separately designed rotating arm allows for a longer lever arm during operation, resulting in a greater rotational torque. This prevents the mechanism from jamming and improves overall reliability.

[0009] In the aforementioned main swing arm locking mechanism, the locking pin is further equipped with a retaining spring located at the lower end of the locking pin hole in the upper bracket. The retaining spring engages within the retaining spring groove of the locking pin. Under continuous vibration, the retaining spring, relying on its elastic tension, remains firmly locked within the groove, effectively preventing the locking pin from shifting due to vibration. This avoids the risk of accidental disengagement and improves the stability and reliability of the locking mechanism under dynamic operating conditions.

[0010] In the aforementioned main swing arm locking mechanism, a wear-resistant sleeve is fitted onto the locking pin, located between the locking pin hole in the upper bracket and the rotating arm, and the height of the wear-resistant sleeve is higher than the top surface of the locking pin hole. The wear-resistant sleeve prevents wear between the locking pin hole and the rotating arm, protecting core components and extending the overall service life.

[0011] In the aforementioned main swing arm locking mechanism, an annular retaining ring is fitted onto the wear-resistant sleeve above the locking pin hole. The top surface of the annular retaining ring is lower than the top surface of the wear-resistant sleeve, and the annular retaining ring is integrally connected to the wear-resistant sleeve. Setting the annular retaining ring lower than the top surface of the wear-resistant sleeve ensures the locking effect while also limiting the locking pin from excessively extending, thereby preventing interference between the end of the locking pin and other components, and ultimately avoiding jamming and structural damage.

[0012] In the aforementioned main swing arm locking mechanism, an adjusting plate is provided between one end of the linear actuator and the upper support. The adjusting plate has at least one strip-shaped adjusting hole. The adjusting plate is fixed to the upper support by bolts passing through the strip-shaped adjusting hole. One end of the linear actuator is hinged to the adjusting plate. The initial position of the linear actuator's thrust application point determines the starting and ending rotation angles of the locking pin. By moving the adjusting plate along the strip-shaped hole, the position of the actuator's fixed end can be adjusted, thereby adjusting the locking pin's rotation endpoint. This ensures that the locking pin can fall into the circumferential locking groove and be locked by the axial stop pin block, avoiding locking incompleteness due to angular deviation.

[0013] In the aforementioned main swing arm locking mechanism, the lower end of the locking pin is provided with an easy-entry annular guide surface, and the locking pin is provided above the easy-entry annular guide surface. When in contact, the easy-entry annular guide surface can generate a radial component force through its inclined surface, allowing the locking pin to slide smoothly into the entrance of the locking pin guide groove, which is more suitable for vibration environments and has higher stability.

[0014] In the aforementioned main swing arm locking mechanism, an axial stop pin block seat is detachably fixed to the outer end of the lock hole, and an axial stop pin block is formed between the circumferential lock groove and the outer end of the lock hole. The axial stop pin block directly bears the impact force during locking and is prone to wear. By using a detachable stop pin block seat, it can be replaced independently when worn, which reduces maintenance time and costs, thereby reducing the cycle maintenance cost of the equipment.

[0015] In the aforementioned main swing arm locking mechanism, the rotating component includes an axial stop pin block seat disposed at the outer end of the lock hole. The axial stop pin block seat is axially and circumferentially connected to the lock hole for axial limiting rotation, and a rotation drive module is connected to the axial stop pin block seat. After locking, there is no relative rotational tendency between the locking pin and the main swing arm, or between the locking pin and the upper support. The vibration load of the main swing arm is directly transmitted through static friction, resulting in stronger resistance to vibration-induced loosening.

[0016] Compared with existing technologies, the advantages of this main swing arm locking mechanism are: 1. Reliable locking with an anti-vibration structure, making it less prone to loosening. 2. Equipped with a driver for automated operation and a distance adjustment plate for calibration, making operation simple and precise. 3. Low maintenance cost with wear-resistant sleeves and removable stop pin blocks, resulting in low periodic maintenance costs and downtime. Attached Figure Description

[0017] Figure 1 This is a top view structural diagram of the present invention.

[0018] Figure 2 This utility model provides Figure 1 Schematic diagram of the cross-sectional structure at point AA.

[0019] Figure 3 This is a schematic diagram of the internal structure provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the locking pin structure provided by this utility model.

[0021] Figure 5 This is a schematic diagram of the bottom structure of the axial stop pin block provided by this utility model.

[0022] In the figure, the components are: upper bracket 1, locking pin hole 11, locking pin 2, locking pin 21, rotating arm 22, snap ring 23, snap ring groove 24, wear-resistant sleeve 25, annular retaining ring 26, easy-entry annular guide surface 27, main swing arm 3, locking hole 31, locking pin guide groove 32, circumferential locking groove 33, axial stop pin block 4, axial stop pin block seat 41, rotating assembly 5, linear actuator 51, adjusting plate 52, and strip-shaped adjusting hole 53. Detailed Implementation

[0023] Example 1 like Figures 1 to 5As shown, the main swing arm locking mechanism includes a locking post 2 axially limited on the upper bracket 1. The main swing arm 3 below the locking post 2 is provided with a locking hole 31. The locking post 2 is provided with two locking pins 21 that are distributed circumferentially and protrude radially. The inner wall of the locking hole 31 is provided with two locking pin guide grooves 32 that are distributed circumferentially and extend axially. One side of the locking pin guide groove 32 is provided with a circumferential locking groove 33 that communicates with the locking pin guide groove 32. An axial stop pin block 4 is formed between the circumferential locking groove 33 and the outer end of the locking hole 31. A rotating component 5 is connected to the locking post 2.

[0024] In this embodiment, by aligning the locking pin 21 at the lower end of the locking pin 2 with and inserting it into the locking pin guide groove 32 on the inner wall of the locking hole 31 on the main swing arm 3, and sliding it along the guide groove, the rotating assembly 5 drives the locking pin 2 to rotate. The locking pin 21 then rotates from the locking pin guide groove 32 into the circumferential locking groove 33 that communicates with it. The axial stop pin block 4 prevents the locking pin 21 from locking, achieving a reliable fixing effect.

[0025] More specifically, the rotating assembly 5 includes a linear actuator 51 disposed between the locking pin 2 and the upper bracket 1. One end of the linear actuator 51 is hinged to the upper bracket 1, and the other end is hinged to the locking pin 2 and offset from its rotation center.

[0026] In this embodiment, the linear actuator 51 is a linear cylinder.

[0027] like Figure 1 As shown, a rotating arm 22 is fixed to the upper end of the locking pin 2, and the other end of the linear actuator 51 is hinged to the rotating arm 22, with the hinge point offset from the rotation center of the locking pin 2.

[0028] like Figure 2 and 5 As shown, the locking pin 2 is also provided with a retaining ring 23 located at the lower end of the locking pin hole 11 of the upper bracket 1, and the retaining ring 23 is engaged in the retaining ring groove 24 of the locking pin 2.

[0029] More specifically, a wear-resistant sleeve 25 is fitted on the locking pin 2 between the locking pin hole 11 of the upper bracket 1 and the rotating arm 22, and the height of the wear-resistant sleeve 25 is higher than the top surface of the locking pin hole 11.

[0030] More specifically, the wear-resistant sleeve 25 is fitted with an annular retaining ring 26 located above the locking pin hole 11. The top surface of the annular retaining ring 26 is lower than the top surface of the wear-resistant sleeve 25, and the annular retaining ring 26 is integrated with the wear-resistant sleeve 25.

[0031] like Figure 1 As shown, a distance adjustment plate 52 is provided between one end of the linear actuator 51 and the upper bracket 1. The distance adjustment plate 52 is provided with two strip-shaped distance adjustment holes 53. The distance adjustment plate 52 is fixed to the upper bracket 1 by bolts passing through the strip-shaped distance adjustment holes 53. One end of the linear actuator 51 is hinged to the distance adjustment plate 52.

[0032] More specifically, the lower end of the locking pin 2 is provided with an easy-entry annular guide surface 27, and a locking pin 21 is provided above the easy-entry annular guide surface 27.

[0033] More specifically, an axial stop pin block seat 41 is detachably fixed on the outer end of the lock hole 31, and an axial stop pin block 4 is formed between the circumferential lock groove 33 and the outer end of the lock hole 31.

[0034] In this embodiment, the axial stop pin block seat 41 is detachably connected to the outer end of the lock hole 31 by four detachable bolts.

[0035] Example 2 This embodiment is basically the same as the first embodiment, except that the rotating component 5 includes an axial stop pin block seat 41 disposed at the outer end of the lock hole 31. The axial stop pin block seat 41 is axially limited and circumferentially rotated with the lock hole 31, and a rotation drive module is connected to the axial stop pin block seat 41.

[0036] In this embodiment, the rotation drive module may include a swing cylinder or a stepper motor, and may include a gear and rack structure to achieve rotation output at a limited angle.

[0037] The working principle of the above embodiment is as follows: the rotation and lifting of the main swing arm 3 allows the locking pin 21 at the lower end of the locking pin 2 to smoothly enter the locking pin guide groove 32 on the inner wall of the locking hole 31 of the main swing arm 3 under the guidance of the easy-entry annular guide surface 27. The lifting and lowering of the main swing arm 3 is common knowledge.

[0038] Once the locking pin 21 reaches the bottom of the guide groove, the rotating assembly 5 begins to operate, and the linear driver 51 pushes the rotating arm 22, thereby driving the locking pin 2 to rotate. Alternatively, the rotating drive module drives the axial stop pin block seat 41 to rotate.

[0039] The locking pin 21 then rotates from the locking pin guide groove 32 into the circumferential locking groove 33 that communicates with it. After rotating into place, the locking pin 21 is mechanically blocked by the axial stop block 4 formed by the outer end of the locking hole 31 and the end of the circumferential locking groove 33, thereby achieving locking.

[0040] During this process, the snap ring 23 prevents the locking pin 2 from moving axially, the wear-resistant sleeve 25 protects the rotating mating surface, and the adjusting plate 52 can be used to fine-tune the installation position of the linear actuator 51, ensuring that the locking pin 21 can accurately fall into the circumferential locking groove 33 and be reliably locked by the axial stop pin block 4.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0042] Although this document frequently uses terms such as upper support, locking pin hole, locking pin, locking pin, rotating arm, snap ring, snap ring groove, wear-resistant sleeve, annular retaining ring, easy-entry annular guide surface, main swing arm, locking hole, locking pin guide groove, circumferential locking groove, axial stop pin block, axial stop pin block seat, rotating assembly, linear actuator, adjusting plate, and strip adjusting hole, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A main swing arm locking mechanism, characterized in that, The device includes a locking post (2) axially limited on the upper support (1), a locking hole (31) on the main swing arm (3) below the locking post (2), at least one locking pin (21) distributed circumferentially and protruding radially on the locking post (2), at least one locking pin guide groove (32) distributed circumferentially and extending axially on the inner wall of the locking hole (31), a circumferential locking groove (33) communicating with the locking pin guide groove (32) on at least one side, an axial stop pin block (4) is formed between the circumferential locking groove (33) and the outer end of the locking hole (31), and a rotating component (5) is connected to the axial stop pin block (4) and / or the locking post (2).

2. The main swing arm locking mechanism according to claim 1, characterized in that, The rotating assembly (5) includes a linear actuator (51) disposed between the locking post (2) and the upper bracket (1), one end of which is hinged to the upper bracket (1) and the other end is hinged to the locking post (2) and offset from its rotation center.

3. The main swing arm locking mechanism according to claim 2, characterized in that, The upper end of the locking post (2) is fixed with a rotating arm (22), and the other end of the linear actuator (51) is hinged to the rotating arm (22) and the hinge is offset from the rotation center of the locking post (2).

4. The main swing arm locking mechanism according to claim 3, characterized in that, The locking post (2) is also provided with a retaining ring (23) located at the lower end of the locking post hole (11) of the upper bracket (1), and the retaining ring (23) is engaged in the retaining ring groove (24) of the locking post (2).

5. The main swing arm locking mechanism according to claim 3, characterized in that, The lock pin (2) is fitted with a wear-resistant sleeve (25) located between the lock pin hole (11) of the upper bracket (1) and the rotating arm (22), and the height of the wear-resistant sleeve (25) is higher than the top surface of the lock pin hole (11).

6. The main swing arm locking mechanism according to claim 5, characterized in that, The wear-resistant sleeve (25) is fitted with an annular retaining ring (26) located above the locking pin hole (11). The top surface of the annular retaining ring (26) is lower than the top surface of the wear-resistant sleeve (25). The annular retaining ring (26) and the wear-resistant sleeve (25) are integrated.

7. The main swing arm locking mechanism according to any one of claims 2-6, characterized in that, An adjustment plate (52) is provided between one end of the linear actuator (51) and the upper bracket (1). The adjustment plate (52) is provided with at least one strip-shaped adjustment hole (53). The adjustment plate (52) is fixed to the upper bracket (1) by bolts passing through the strip-shaped adjustment hole (53). One end of the linear actuator (51) is hinged to the adjustment plate (52).

8. The main swing arm locking mechanism according to any one of claims 1-6, characterized in that, The lower end of the locking pin (2) is provided with an easy-entry annular guide surface (27), and the locking pin (21) is provided above the easy-entry annular guide surface (27).

9. The main swing arm locking mechanism according to any one of claims 1-6, characterized in that, An axial stop pin block seat (41) is detachably fixed on the outer end of the lock hole (31), and an axial stop pin block (4) is formed between the circumferential lock groove (33) and the outer end of the lock hole (31).

10. The main swing arm locking mechanism according to claim 1, characterized in that, The rotating component (5) includes an axial stop pin block seat (41) disposed at the outer end of the lock hole (31). The axial stop pin block seat (41) is axially limited and circumferentially rotated with the lock hole (31). A rotation drive module is connected to the axial stop pin block seat (41).

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