Sock packing machine

Abstract

The packaging machine comprises a sock conveying belt, weighing sensors, a box feeding conveying belt, a transferring unit, a plurality of clamping units and a triggering unit, the transferring unit comprises a base, a rotating disc and a plurality of containing grooves, the rotating disc is rotationally installed on the base, the containing grooves are formed in the rotating disc in the circumferential direction at intervals, and the weighing sensors are arranged at the bottoms of the containing grooves; the clamping units are arranged on the rotating disc at intervals and comprise fixed pipes, telescopic pipes, self-resetting contact pieces and rotating driving pieces, the telescopic pipes are slidably inserted into the fixed pipes, fixed clamping plates are arranged at the outer ends of the telescopic pipes, and the rotating driving pieces drive the overturning clamping plates and the fixed clamping plates to be opened and closed; during work, the rotating disc rotates to the position corresponding to the box feeding conveying belt, the triggering unit activates the clamping unit, the self-reset contact piece controls the telescopic pipe to stretch out, the rotating driving piece drives the overturning clamping plate and the fixed clamping plate to be closed to clamp an empty box, the empty box is transferred to the containing groove and then separated, and the weighing sensor weighs socks in the box. According to the structure, automatic transfer and accurate weighing of empty boxes are achieved, and the packaging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of socks production equipment, in particular to a socks packing machine. Background Art

[0002] In the sock production process, packaging is an indispensable link. Automating packaging can significantly improve production efficiency. In the prior art, authorized invention CN108725525A discloses an automatic sock packaging machine, which includes a feeding conveyor belt, a packaging table and a boxing mechanism. The feeding conveyor belt transports the socks to the packaging table, and the boxing mechanism packs the socks into packaging boxes. However, during the empty box transfer process, the packaging machine relies on manual assistance or a complex mechanical arm to grab and place the empty boxes, which not only increases labor costs or equipment costs, but also reduces the accuracy and efficiency of empty box transfer. At the same time, the weighing device and the boxing mechanism do not cooperate well, and weighing delays or inaccuracies often occur, affecting the overall packaging progress. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art.

[0004] The present application provides a sock packing machine, including a sock feeding conveyor belt and a weighing sensor, and also includes a box feeding conveyor belt, a transfer unit, a plurality of clamping units, and a trigger unit. The transfer unit includes a base, a rotating disk and a plurality of placement slots. The rotating disk is rotatably mounted on the base, and a plurality of placement slots are arranged at intervals on the circumference. A weighing sensor is arranged at the bottom of each placement slot. The clamping units are placed on the rotating disk at intervals. The trigger unit triggers the action of the clamping unit corresponding to the box feeding conveyor belt, so that the empty box is moved from the box feeding conveyor belt to the placement slot.

[0005] The clamping unit includes a pair of fixed tubes, a pair of telescopic tubes and a self-resetting contact piece. The fixed tube is fixed on the rotating disk, the telescopic tube is slidably inserted in the fixed tube, the inner end of the telescopic tube is fixedly connected to the self-resetting contact piece, and the outer end is fixed with a fixed splint. A flip splint that opens and closes relative to the fixed splint is also movably installed in the telescopic tube through a rotating drive piece. The rotating drive piece is used to make the flip splint and the fixed splint close and clamp the packaging box when the telescopic tube extends radially along the rotating disk until the packaging box is moved into the placement slot and the flip splint is separated from the fixed splint. The self-resetting contact piece is used to cooperate with the trigger unit to control the telescopic tube to slide in the fixed tube.

[0006] The rotary drive member includes a rotating shaft, a circumferential elastic member, a circular groove and a transmission block. The rotating shaft is rotatably installed in the telescopic tube, the transmission block is fixed at the inner end of the circumferential wall, and the flip splint is fixed at the outer end of the circumferential wall. The circumferential elastic member is used to apply torsional force to the rotating shaft. An arc groove is opened at the inner end of the rotating shaft, and the circular groove is arranged on the inner wall of the fixed cylinder. The transmission block slides with the arc groove and the circular groove.

[0007] The serpentine groove includes an extending section, a rotating section, a retracting section, a reset section and a non-return component. The extending section is parallel to the retracting section. The rotating section extends circumferentially along the telescopic tube to connect the extending section and the front end of the retracting section. The reset section is obliquely connected to the inner end of the extending section and the retracting section, and is used to guide the transmission block from the retracting section into the extending section when the telescopic tube retracts. The non-return component is used to prevent the transmission block in the extending section from entering the retracting section via the reset section.

[0008] The anti-return component includes a limiting slide groove, a limiting block and a pre-tightening spring. The slide groove is opened on the inner wall of the fixed tube, and one end is connected to the reset section. The limiting block is slidably inserted in the limiting slide groove and the reset section, a pre-tightening spring is set at the inner end, and the outer end is inclined toward the retraction section.

[0009] The circumferential elastic part includes a mounting ring groove, a blocking plate, a rotating arc groove and a torsion spring. The mounting ring groove is arranged on the circumferential wall of the rotating shaft, the rotating arc groove is arranged on the inner wall of the telescopic tube, the blocking plate is fixed on the top of the mounting ring groove and one end is slidingly matched with the rotating arc groove. The torsion spring is sleeved in the mounting ring groove and the two ends are respectively abutted against the blocking plate and the rotating arc groove, and is used to apply torque to the rotating shaft, so that the transmission block at the outer end of the extended section passes through the rotating section and enters the retracted section, and the fixed splint and the flip splint are closed.

[0010] The free ends of the pair of flip splints face inwardly.

[0011] The self-resetting contact member includes a contact plate, a pair of connecting rods and a pair of reset springs. The two ends of the contact plate are fixedly connected to the connecting rods, and the other ends of the pair of connecting rods are fixedly connected to the inner end of the telescopic tube. The pair of reset springs are respectively sleeved on the outside of each connecting rod, and the two ends are abutted against the contact plate and the inner end of the fixed tube.

[0012] The trigger unit includes a rotating sleeve, a fixed shell, an upper gear and a rack. The rotating sleeve is fixed at the center of the rotating disk, the fixed shell is fixed on the base and rotates with the rotating sleeve. The rack is slidably installed on the top of the fixed shell. The gear is driven by a motor and engages with the rack.

[0013] It also includes a gear ring and a lower gear. The gear ring is arranged on the peripheral wall of the rotating sleeve, and the lower gear is driven by a motor to engage with the gear ring.

[0014] The beneficial effects of the present invention are as follows: 1. Empty box transfer: Existing technologies rely on manual assistance or complex robotic arms. This application realizes the automated transfer of empty boxes from the box infeed conveyor belt to the placement slot through the cooperation of the clamping unit, the triggering unit and the transfer unit. This does not require manual intervention, which reduces labor costs. The structure is relatively simple, which reduces equipment costs. At the same time, the precise movement of the clamping unit ensures high accuracy and efficiency in the transfer of empty boxes. 2. Coordination between weighing and packing: The existing weighing device and the packing mechanism do not cooperate well enough, and weighing delays or inaccuracies often occur. In this application, the weighing sensor at the bottom of the placement slot is directly set in the placement slot of the transfer unit. When the socks are loaded into the box, they can be weighed immediately, and the action of the clamping unit is coordinated to avoid weighing delays, improve weighing accuracy, and ensure the overall packaging progress. 3. Reliability of movement: This application ensures the stability and reliability of the opening and closing movement of the flipping splint and the fixed splint in the clamping unit through the coordination of the various sections of the circular groove, the setting of the anti-return parts and the action of the circumferential elastic parts, thereby further improving the stability of the equipment operation. 4. Self-resetting performance: The design of the self-resetting contact piece enables the telescopic tube to accurately return to its initial state after each clamping action is completed, ensuring the continuity and rhythm of the clamping unit action and improving the overall operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a sock packing machine in an embodiment of the present application; Figure 2 A three-dimensional diagram of a sock packing machine in an embodiment of the present application (cut vertically in half); Figure 3 This is a three-dimensional diagram of the trigger unit in the embodiment of the present application; Figure 4 This is a three-dimensional diagram of the clamping unit in the embodiment of the present application; Figure 5 A three-dimensional diagram of a clamping unit in an embodiment of the present application (cut along the axis); Figure 6 A three-dimensional diagram of a clamping unit in an embodiment of the present application (cut from the vertical axis); Figure 7 This is a three-dimensional diagram of the fixed cylinder in the embodiment of this community (cut along the axis).

[0016] Reference numerals 1-sock feeding conveyor belt, 2-weighing sensor, 3-box feeding conveyor belt, 4-transfer unit, 41-base, 42-rotating disk, 43-placement slot, 5-clamping unit, 51-fixed tube, 52-telescopic tube, 53-self-resetting contact, 531-contact plate, 532-connecting rod, 533-resetting spring, 54-fixed splint, 55-flip splint, 6-trigger unit, 61-rotating sleeve, 62-fixed shell, 63-upper gear , 64- rack, 7- rotation drive member, 71- rotating shaft, 72- circumferential elastic member, 721- mounting ring groove, 722- blocking plate, 723- rotating arc groove, 724- torsion spring, 73- circular groove, 731- extension section, 732- rotation section, 733- retraction section, 734- reset section, 74- transmission block, 8- anti-return member, 81- limiting slide groove, 82- limiting block, 83- preload spring, 9- gear ring, 10- lower gear. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0018] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0019] The sock packing machine provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0020] Example 1: An embodiment of the present application provides a sock packing machine, including a sock feeding conveyor belt 1 and a weighing sensor 2, and also includes a box feeding conveyor belt 3, a transfer unit 4, a plurality of clamping units 5, and a trigger unit 6. The transfer unit 4 includes a base 41, a rotating disk 42 and a plurality of placement slots 43. The rotating disk 42 is rotatably mounted on the base 41, and a plurality of placement slots 43 are arranged at intervals on the circumference. A weighing sensor 2 is arranged at the bottom of each placement slot 43. The clamping units 5 are placed at intervals on the rotating disk 42. The trigger unit 6 triggers the action of the clamping unit 5 corresponding to the box feeding conveyor belt 3, so that the empty box is moved from the box feeding conveyor belt 3 to the placement slot 43.

[0021] In this embodiment of the present application, the clamping unit 5 includes a pair of fixed tubes 51, a pair of telescopic tubes 52 and a self-resetting contact piece 53. The fixed tube 51 is fixed on the rotating disk 42, the telescopic tube 52 is slidably inserted in the fixed tube 51, the inner end is fixedly connected to the self-resetting contact piece 53, and the outer end is fixed with a fixed splint 54. The telescopic tube 52 is also movably installed with a flip splint 55 that opens and closes relative to the fixed splint 54 through a rotating drive member 7. The rotating drive member 7 is used to make the flip splint 55 and the fixed splint 54 close and clamp the packaging box when the telescopic tube 52 extends radially along the rotating disk 42 until the packaging box moves into the placement slot 43, and the flip splint 55 is separated from the fixed splint 54. The self-resetting contact piece 53 is used to cooperate with the trigger unit 6 to control the telescopic tube 52 to slide in the fixed tube 51.

[0022] In this embodiment of the present application, the rotating drive member 7 includes a rotating shaft 71, a circumferential elastic member 72, a circular groove 73 and a transmission block 74. The rotating shaft 71 is rotatably installed in the telescopic tube 52, the transmission block 74 is fixed at the inner end of the circumferential wall, and the flip splint 55 is fixed at the outer end of the circumferential wall. The circumferential elastic member 72 is used to apply a torsional force to the rotating shaft 71. An arc groove is opened at the inner end of the rotating shaft 71, and the circular groove 73 is arranged on the inner wall of the fixed cylinder. The transmission block 74 slides with the arc groove and the circular groove 73.

[0023] In this embodiment of the present application, the free ends of the pair of flip clamps 55 face inwardly.

[0024] like Figures 1 to 7As shown, due to the adoption of the above-mentioned structure, when the sock packing machine starts working, the sock feeding conveyor belt 1 conveys the socks to the designated position, and the box feeding conveyor belt 3 conveys the empty packaging boxes. The rotating disk 42 rotates on the base 41, and the plurality of placement slots 43 on its circumference rotate synchronously with the rotating disk 42. When a placement slot 43 rotates to a position corresponding to the box feeding conveyor belt 3, the trigger unit 6 is activated, thereby triggering the clamping unit 5 at the corresponding position to start the action. Under the action of the trigger unit 6, the self-resetting contact member 53 of the clamping unit 5 controls the telescopic tube 52 to slide radially outward along the rotating disk 42 in the fixed tube 51. During the sliding process of the telescopic tube 52, the rotary drive member 7 starts to work: the rotating shaft 71 is rotated due to the transmission block 74 in the circular groove 73 and the arc groove The rotating shaft 71 is rotated by sliding, and the circumferential elastic member 72 applies a torsional force to the rotating shaft 71. When the telescopic tube 52 extends outward to a certain extent, under the action of the rotating drive member 7, the flipping splint 55 fixed to the outer end of the rotating shaft 71 rotates toward the fixed splint 54, and finally the two are closed to clamp the empty box on the box feeding conveyor 3. Subsequently, with the continued rotation of the rotating disk 42 and the appropriate movement of the telescopic tube 52, the clamped empty box is smoothly transferred from the box feeding conveyor 3 to the corresponding placement slot 43. When the empty box arrives in the placement slot 43, the rotating drive member 7 separates the flipping splint 55 from the fixed splint 54, and releases the empty box. At this time, the weighing sensor 2 at the bottom of the placement slot 43 starts to work, and can weigh and measure the socks subsequently loaded into the box.

[0025] Example 2: The difference from Example 1 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, the toggle groove 73 includes an extending section 731, a rotating section 732, a retracting section 733, a reset section 734 and a non-return member 8. The extending section 731 is parallel to the retracting section 733. The rotating section 732 extends circumferentially along the telescopic tube 52 to connect the extending section 731 and the front end of the retracting section 733. The reset section 734 is obliquely connected to the inner ends of the extending section 731 and the retracting section 733, and is used to guide the transmission block 74 from the retracting section 733 to enter the extending section 731 when the telescopic tube 52 retracts. The non-return assembly is used to prevent the transmission block 74 in the extending section 731 from entering the retracting section 733 via the reset section 734.

[0026] In this embodiment of the present application, the anti-return member 8 includes a limiting groove 81, a limiting block 82 and a pre-tightening spring 83. The groove is opened on the inner wall of the fixed tube 51, and one end is connected to the reset section 734. The limiting block 82 is slidably inserted in the limiting groove 81 and the reset section 734, the pre-tightening spring 83 is set at the inner end, and the outer end is inclined toward the retraction section 733.

[0027] In this embodiment of the present application, the circumferential elastic member 72 includes an installation ring groove 721, a blocking plate 722, a rotation arc groove 723 and a torsion spring 724. The installation ring groove 721 is set on the circumferential wall of the rotating shaft 71, and the rotation arc groove 723 is set on the inner wall of the telescopic tube 52. The blocking plate 722 is fixed to the top of the installation ring groove 721 and one end slides with the rotation arc groove 723. The torsion spring 724 is sleeved in the installation ring groove 721, and its two ends respectively abut against the blocking plate 722 and the rotation arc groove 723, which is used to apply torque to the rotating shaft 71, so that the transmission block 74 at the outer end of the extending section 731 passes through the rotating section 732 and enters the retracting section 733, and the fixed splint 54 and the flip splint 55 are closed.

[0028] like Figure 7 When the locking cam 731 is unlocked, the locking cam 732 is unlocked and the locking cam 733 is unlocked, so that the locking cam 733 can be unlocked, and the winch 72 can be unlocked when the winch 72 is unlocked. After the cam 731 is in the state of rotation, the stopper 82 is in the state of rotation again, so that the cam 732 can be rotated to move relative to the stopper 82, thereby preventing the cam 732 from rotating.

[0029] Example 3: The difference from Example 2 is that, in this embodiment, in addition to the structural features of the aforementioned embodiment, the self-resetting contact member 53 includes a contact plate 531, a pair of connecting rods 532 and a pair of reset springs 533, the two ends of the contact plate 531 are fixedly connected to each connecting rod 532, the other ends of the pair of connecting rods 532 are fixedly connected to the inner end of the telescopic tube 52, and the pair of reset springs 533 are respectively sleeved on the outside of each connecting rod 532, and the two ends are abutted against the contact plate 531 and the inner end of the fixed tube 51.

[0030] like Figures 1 to 2 As shown, due to the adoption of the above structure, the structural design of the self-resetting contact member 53 makes the telescopic action of the clamping unit 5 smoother and has good reset performance. When the trigger unit 6 applies a force to the self-resetting contact member 53, the contact plate 531 is pushed by the external force, and the connecting rod 532 fixed at both ends drives the telescopic tube 52 to slide toward the outside of the rotating disk 42 in the fixed tube 51. At this time, the reset spring 533 sleeved on the outside of the connecting rod 532 is squeezed by the contact plate 531 and the inner end of the fixed tube 51 and is compressed. When the trigger unit 6 is actuated After the force disappears, the return spring 533 is no longer squeezed and begins to rebound. Its elastic force pushes the contact plate 531 to move away from the inner end of the fixed tube 51. The contact plate 531 then drives the telescopic tube 52 to slide toward the inside of the rotating disk 42 in the fixed tube 51 through the connecting rod 532 until it returns to its initial position. This self-resetting function ensures that the telescopic tube 52 can accurately return to its initial state after each clamping action is completed, providing a guarantee for the smooth progress of the next clamping action, and effectively cooperating with the trigger unit 6 to control the action rhythm of the clamping unit 5.

[0031] Example 4: The difference from Example 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the trigger unit 6 includes a rotating sleeve 61, a fixed shell 62, an upper gear 63 and a rack 64. The rotating sleeve 61 is fixed at the center of the rotating disk 42, the fixed shell 62 is fixed to the base 41 and rotates with the rotating sleeve 61, and the rack 64 is slidably installed on the top of the fixed shell 62. The gear is driven by a motor and engages with the rack 64.

[0032] In this embodiment of the present application, a ring gear 9 and a lower gear 10 are further included. The ring gear 9 is arranged on the peripheral wall of the rotating sleeve 61, and the lower gear 10 is driven by a motor to engage with the ring gear 9.

[0033] like Figures 1 to 2As shown, due to the adoption of the above structure, the driving cooperation of the trigger unit 6 and the rotating disc 42 is more coordinated, ensuring the efficient operation of the entire packing machine. When the trigger unit 6 works, the motor drives the upper gear 63 to rotate, the upper gear 63 meshes with the rack 64, thereby driving the rack 64 to slide on the top of the fixed shell 62. The sliding of the rack 64 will trigger the self-resetting contact 53 of the clamping unit 5, thereby controlling the action of the clamping unit 5. At the same time, the motor drives the lower gear 10 to rotate, the lower gear 10 meshes with the gear ring 9 fixed on the peripheral wall of the rotating sleeve 61. Since the rotating sleeve 61 is fixed on the center of the rotating disc 42 and rotates with the fixed shell 62, the rotation of the lower gear 10 will drive the rotating sleeve 61 and the rotating disc 42 to stably rotate on the base 41. Through this design, the rotation of the rotating disc 42 and the action of the clamping unit 5 can be precisely coordinated: when the rotating disc 42 rotates to make a certain placement groove 43 reach the position of the box conveying belt 3, the trigger unit 6 controls the corresponding clamping unit 5 to act to grab the empty box; when the rotating disc 42 transfers the packaging box containing socks to the next process position, the clamping unit 5 can also act in time to complete the subsequent operation, ensuring the orderly progress of the entire packing process such as empty box transfer, sock packaging, weighing, etc.

[0034] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0035] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A sock packing machine, comprising a sock feeding conveyor belt and a weighing sensor, characterized in that: It also includes a box-feeding conveyor belt, a transfer unit, several clamping units, and a trigger unit. The transfer unit includes a base, a rotating disk and several placement slots. The rotating disk is rotatably installed on the base, and several placement slots are arranged at intervals on the circumference. A weighing sensor is arranged at the bottom of each placement slot. Each clamping unit is placed on the rotating disk at intervals. The trigger unit triggers the action of the clamping unit corresponding to the box-feeding conveyor belt, so that the empty box is moved from the box-feeding conveyor belt to the placement slot.

2. A socks packing machine according to claim 1, characterized in that: The clamping unit includes a pair of fixed tubes, a pair of telescopic tubes and a self-resetting contact piece. The fixed tube is fixed on the rotating disk. The telescopic tube is slidably inserted in the fixed tube, the inner end of the telescopic tube is fixedly connected to the self-resetting contact piece, and the outer end is fixed with a fixed splint. The telescopic tube is also movably installed with a flip splint that opens and closes relative to the fixed splint through a rotating drive piece. The rotating drive piece is used to make the flip splint and the fixed splint close and clamp the packaging box when the telescopic tube is extended radially along the rotating disk until the packaging box is moved into the placement slot and the flip splint is separated from the fixed splint. The self-resetting contact piece is used to cooperate with the trigger unit to control the telescopic tube to slide in the fixed tube.

3. A socks packing machine according to claim 2, characterized in that: The rotary drive member includes a rotating shaft, a circumferential elastic member, a circular groove and a transmission block. The rotating shaft is rotatably installed in the telescopic tube, the transmission block is fixed at the inner end of the circumferential wall, and the flip splint is fixed at the outer end of the circumferential wall. The circumferential elastic member is used to apply a torsional force to the rotating shaft. An arc-shaped groove is opened at the inner end of the rotating shaft, and the circular groove is arranged on the inner wall of the fixed cylinder. The transmission block slides with the arc-shaped groove and the circular groove.

4. A socks packing machine according to claim 3, characterized in that: The serpentine groove includes an extending section, a rotating section, a retracting section, a reset section and a non-return member. The extending section is parallel to the retracting section. The rotating section extends circumferentially along the telescopic tube to connect the extending section and the front end of the retracting section. The reset section is obliquely connected to the inner end of the extending section and the retracting section, and is used to guide the transmission block from the retracting section into the extending section when the telescopic tube retracts. The non-return member is used to prevent the transmission block in the extending section from entering the retracting section via the reset section.

5. A socks packing machine according to claim 4, characterized in that: The anti-return component includes a limiting slide groove, a limiting block and a pre-tightening spring. The slide groove is opened on the inner wall of the fixed tube, and one end is connected to the reset section. The limiting block is slidably inserted in the limiting slide groove and the reset section, a pre-tightening spring is set at the inner end, and the outer end face is inclined toward the retraction section.

6. The socks packing machine according to claim 4, characterized in that: The circumferential elastic member includes a mounting ring groove, a blocking plate, a rotating arc groove and a torsion spring. The mounting ring groove is arranged on the circumferential wall of the rotating shaft, and the rotating arc groove is arranged on the inner wall of the telescopic tube. The blocking plate is fixed to the top of the mounting ring groove and one end is slidingly matched with the rotating arc groove. The torsion spring is sleeved in the mounting ring groove and its two ends are respectively in contact with the blocking plate and the rotating arc groove, and is used to apply torque to the rotating shaft, so that the transmission block at the outer end of the extended section passes through the rotating section and enters the retracted section, and the fixed splint and the flip splint are closed.

7. The socks packing machine according to claim 2, characterized in that: The free ends of the pair of flip clamps face inwardly and are opposite to each other.

8. The socks packing machine according to claim 2, characterized in that: The self-resetting contact member includes a contact plate, a pair of connecting rods and a pair of reset springs. The two ends of the contact plate are fixedly connected to each connecting rod, and the other ends of the pair of connecting rods are fixedly connected to the inner end of the telescopic tube. The pair of reset springs are respectively sleeved on the outside of each connecting rod, and the two ends are abutted against the contact plate and the inner end of the fixed tube.

9. The socks packing machine according to claim 2, characterized in that: The trigger unit includes a rotating sleeve, a fixed shell, an upper gear and a rack. The rotating sleeve is fixed at the center of the rotating disk, the fixed shell is fixed on the base and rotates with the rotating sleeve, and the rack is slidably installed on the top of the fixed shell. The gear is driven by a motor and engages with the rack.

10. The sock packing machine according to claim 9, characterized in that: It also includes a gear ring and a lower gear. The gear ring is arranged on the peripheral wall of the rotating sleeve, and the lower gear is driven by a motor to engage with the gear ring.

Images