Chain guide and feed mechanism for a chain stitch machine

Abstract

This invention discloses a chain-guided feeding and conveying mechanism for a chain braiding machine, belonging to the field of chain braiding machine feeding and conveying technology. It includes a connecting frame and a mounting frame, and chain and sprocket assemblies installed at both ends within the connecting frame and the mounting frame respectively. A servo motor is mounted on the outer side of the mounting frame, and the bearing at the shaft end of the servo motor passes through the mounting frame and is connected to the sprocket of the chain and sprocket assembly within the mounting frame via a key. Both the connecting frame and the mounting frame are provided with two crossbars, with a screw fixedly connected between the upper crossbars and a limiting square rod fixedly connected between the lower crossbars. In use, this invention eliminates the need for frequent forward and reverse rotation of the servo motor to control the reciprocating movement of the push rod, thus avoiding the lifespan issues caused by frequent forward and reverse rotation of the servo motor. Furthermore, since the servo motor does not require forward and reverse rotation, the use of frequency converters and other equipment can be avoided, helping to reduce production costs.

Description

Technical Field

[0001] This invention relates to the field of feeding technology for chain braiding machines, specifically to a chain-guided feeding and conveying mechanism for a chain braiding machine. Background Technology

[0002] High-strength compact rings for mining have advantages such as high strength, high reliability, and high precision, and are therefore widely used in large mining equipment. During operation, the chain braiding machine that manufactures compact rings can push the bar stock to the stamping position through the feeding mechanism. Compared with manual feeding, it is more efficient and more stable. However, the horizontal thrust of the feeding mechanism of the chain braiding machine can become very large with the weight and quantity of the bar stock and the length of the pushing line. It cannot work stably according to the preset requirements. When the pushed bar stock is not in place, the machine needs to be stopped for correction before it can work normally, which affects the production progress and even affects the subsequent processes such as bar stock forming and welding.

[0003] To solve the above problems, in the prior art, a chain conveyor mechanism is used in conjunction with a motor that can rotate in both directions to achieve reciprocating material pushing. For example, CN211197552U discloses a chain-guided feeding and pushing mechanism for a fully automatic intelligent chain braiding machine. It drives the transmission chain to rotate in both directions by driving the motor to rotate in both directions. Then, through the connection between the transmission chain and the fixed frame, it drives the push rod installed on the fixed frame to move back and forth, so as to achieve the purpose of reciprocating material pushing.

[0004] However, in the above-mentioned existing technology, the forward and reverse rotation frequency of the drive motor needs to be adjusted according to the length of the bar stock. This often causes the drive motor to malfunction due to prolonged forward and reverse rotation during use. In addition, when adjusting the forward and reverse rotation of the drive motor, it is necessary to use equipment such as frequency converters, which will increase the cost.

[0005] Therefore, a chain-guided feeding and conveying mechanism for a chain braiding machine is needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a chain-guided feeding and conveying mechanism for a chain braiding machine, in order to solve the problems mentioned in the background art, that the existing chain-guided feeding and conveying mechanism of the chain braiding machine requires the drive motor to rotate frequently in both directions, which is not conducive to ensuring the service life of the drive motor, and that adjusting the frequency of the drive motor's rotation in both directions requires the use of frequency converters and other equipment, which leads to increased costs.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A chain-guided feeding and conveying mechanism for a chain braiding machine includes a connecting frame and a mounting frame, and a chain and sprocket assembly installed at both ends in the connecting frame and the mounting frame respectively. A servo motor is installed on the outer side of the mounting frame, and the bearing at the shaft end of the servo motor passes through the mounting frame and is connected to the sprocket key of the chain and sprocket assembly in the mounting frame. Two crossbars are provided on both the connecting frame and the mounting frame. A screw is fixedly connected between the upper crossbars, and a limiting square bar is fixedly connected between the lower crossbars. The limiting square bar and the screw are movably installed through the mounting block. Steering control mechanisms are installed on the inner sides of both the upper and lower ends of the mounting block, and a connecting block is fixedly connected to the lower end of the mounting block. A push rod for pushing bar stock is installed on the connecting block. Two sets of range adjustment mechanisms are installed on the limiting square bar, and the two sets of range adjustment mechanisms correspond to the two sides of the mounting block respectively.

[0009] Preferably, the mounting block is provided with a square slot that matches the limiting rod. The limiting rod passes through the mounting block through the square slot to limit the mounting block and ensure its stable axial movement along the limiting rod.

[0010] Preferably, the steering control mechanism includes limit sprockets provided on the inner sides of both the upper and lower ends of the mounting block, and the shaft end of the limit sprocket is connected to the bearing of the mounting block. The limit sprockets are engaged with the chain on the chain sprocket assembly to press against the chain on the chain sprocket assembly and ensure that the chain is in a taut state.

[0011] Preferably, the steering control mechanism further includes a brake disc coaxially fixedly connected to the rotating shaft of the limiting sprocket, and a brake cover is movably sleeved on the outer side of the rotating shaft of the limiting sprocket. Two brake discs and two brake covers are provided, respectively located on both sides of the limiting sprocket. Two fixed discs are also movably sleeved on the rotating shaft of the limiting sprocket, and the two fixed discs are also respectively located on both sides of the limiting sprocket. The fixed discs are connected to the inner side of the end of the mounting block through fixed rods connected at equal angles. The fixed discs have an annular cavity inside. The fixed discs have an air guide piston rod that communicates with the annular cavity at equal angles on the side facing the corresponding brake cover. The brake cover has a piston cavity at equal angles on the side facing the corresponding fixed disc. The piston end of the corresponding air guide piston rod is seamlessly slidably inserted into each piston cavity. A spring is provided between the fixed discs and the corresponding brake cover, movably sleeved on the outer side of the air guide piston rod.

[0012] Preferably, the brake disc is frustum-shaped, and the brake cover has a frustum-shaped groove that mates with the brake disc on the side facing the brake disc.

[0013] Preferably, the steering control mechanism further includes an inner cavity located in the middle of the mounting block, with piston tubes at both the upper and lower ends of the inner cavity. The upper and lower piston tubes are respectively connected to the corresponding annular cavity through corresponding air guides. The two ends of a double-ended piston rod are seamlessly slidably connected inside the two piston tubes. Two support rods are symmetrically arranged about the center of the axis of the double-ended piston rod in the middle. A through groove symmetrical about the center of the axis of the double-ended piston rod is provided in the middle of the mounting block. The through groove extends from the outside of the mounting block into the inner cavity. The support rods are movably arranged through the corresponding through grooves. The support rods are connected to the corresponding through grooves through a sliding block structure. An actuating block is connected to the end of each support rod extending to the outside of the mounting block.

[0014] Preferably, both of the actuating blocks are right-angled triangular prisms, and the inclined surfaces of the two actuating blocks face opposite directions and are arranged parallel to each other.

[0015] Preferably, the steering control mechanism further includes two limiting shafts connected at one end to the outer side of the middle of the double-ended piston rod, and the two limiting shafts are symmetrically arranged about the center of the axis of the double-ended piston rod. The inner cavity is provided with two limiting tubes connected at one end to its inner side, and the other end of the corresponding limiting shaft is movably inserted into each limiting tube. A disc coaxial with the limiting shaft is fixedly provided on the limiting shaft, and a spring II nested on the outer side of the limiting shaft is provided between the disc and the opening end of the corresponding limiting tube.

[0016] Preferably, the range adjustment mechanism includes a support frame through which a limiting rod moves, and a worm gear is connected to a bearing on the support frame. The worm gear is threaded to the lower side of a screw. A push block facing the corresponding actuating block is provided on the support frame, and an actuating disc coaxial with the worm gear is connected to one of the two shaft ends of the worm gear after the bearing passes through the support frame.

[0017] Preferably, the push block and the actuating disk are respectively disposed on both sides of the corresponding support frame, and the support frame is also provided with a square slot with a shape matching the limiting square rod. The limiting square rod moves through the support frame through the square slot to limit the support frame and ensure the stability of the worm gear.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the chain-guided feeding and conveying mechanism of the chain braiding machine does not require the frequent forward and reverse rotation of the servo motor to control the reciprocating movement of the push rod during use, thereby avoiding the service life problem caused by the frequent forward and reverse rotation of the servo motor. In addition, since the servo motor does not need to rotate forward and reverse, the use of frequency converters and other equipment can be avoided, which helps to reduce production costs.

[0019] 1. By pressing the two actuating blocks against the corresponding push blocks, the up-and-down movement of the double-headed piston rod can be controlled. The up-and-down movement of the double-headed piston rod can change the position of the brake cover in the upper and lower positions. When the upper brake cover is pressed against the corresponding brake disc, causing the corresponding limit sprocket to stop rotating, the upper limit sprocket can move together with the upper part of the chain on the chain sprocket assembly, and the lower brake cover moves away from the corresponding brake disc. This allows the lower limit sprocket to rotate when it moves to the lower part of the chain on the chain sprocket assembly. Conversely, the upper limit sprocket can rotate, and the lower limit sprocket moves together with the lower part of the chain on the chain sprocket assembly. This allows the push rod to reciprocate within different ranges by adjusting the position of the two push blocks. Compared with the previous method of relying on the forward and reverse rotation of the servo motor to achieve the reciprocating movement of the push rod, this method can greatly improve the service life of the servo motor and avoid the use of frequency converters and other equipment, thereby helping to reduce production costs.

[0020] 2. By setting the distance between the two limiting sprockets, the parts of the chain on the chain sprocket assembly that mesh with the two limiting sprockets can be squeezed close to each other. This prevents the upper and lower parts of the chain on the chain sprocket assembly from being parallel to each other, helps the chain to remain taut, and thus helps to ensure the stable reciprocating movement of the push rod. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention from a bottom view;

[0023] Figure 3 This is a partial cross-sectional view of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the side sectional structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged structural diagram of point B;

[0027] Figure 7 For the present invention Figure 5 A magnified structural diagram of point C.

[0028] In the diagram: 1. Chain and sprocket assembly; 2. Connecting frame; 3. Mounting frame; 4. Servo motor; 5. Limiting rod; 6. Screw; 7. Worm gear; 8. Support frame; 9. Push block; 10. Actuating disc; 11. Mounting block; 12. Connecting block; 13. Push rod; 14. Limiting sprocket; 15. Inner cavity; 16. Piston tube; 17. Double-ended piston rod; 18. Support rod; 19. Through groove; 20. Sliding slider structure; 21. Actuating block; 22. Brake disc; 23. Brake cover; 24. Piston chamber; 25. Air guide piston rod; 26. Spring one; 27. Annular cavity; 28. Fixed disc; 29. ​​Fixed rod; 30. Air guide tube; 31. Limiting tube; 32. Limiting shaft; 33. Spring two. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 The present invention provides the following technical solution:

[0031] Example 1: To address the problem that the chain-guided feeding and conveying mechanism of traditional chain braiding machines requires frequent forward and reverse rotation of the drive motor to achieve the reciprocating movement of the push rod, which significantly affects the service life of the drive motor and greatly increases the failure rate, the following technical solution is provided: a chain-guided feeding and conveying mechanism for a chain braiding machine, including a connecting frame 2 and a mounting frame 3, and a chain and sprocket assembly 1 installed at both ends in the connecting frame 2 and the mounting frame 3 respectively. A servo motor 4 is installed on the outside of the mounting frame 3, and the shaft bearing of the servo motor 4 passes through the mounting frame 3 and connects with the chain inside the mounting frame 3. The sprocket assembly 1 has a sprocket key connection. Both the connecting frame 2 and the mounting frame 3 are provided with two crossbars. The upper crossbar is fixedly connected with a screw 6, and the lower crossbar is fixedly connected with a limiting square bar 5. The limiting square bar 5 and the screw 6 are both movably connected through the mounting block 11. The upper and lower ends of the mounting block 11 are both equipped with steering control mechanisms. The lower end of the mounting block 11 is fixedly connected with a connecting block 12. The connecting block 12 is equipped with a push rod 13 for pushing the bar stock. The limiting square bar 5 is equipped with two sets of range adjustment mechanisms, and the two sets of range adjustment mechanisms correspond to the two sides of the mounting block 11 respectively.

[0032] The mounting block 11 is provided with a square slot that matches the limiting rod 5. The limiting rod 5 passes through the square slot and moves through the mounting block 11 to limit the mounting block 11 and ensure its stable axial movement along the limiting rod 5.

[0033] The steering control mechanism includes limit sprockets 14 located on the inner sides of both the upper and lower ends of the mounting block 11. The shaft ends of the limit sprockets 14 are connected to the bearings of the mounting block 11. The limit sprockets 14 are engaged with the chain on the chain sprocket assembly 1 to press against the chain on the chain sprocket assembly 1, ensuring that the chain is taut. The steering control mechanism also includes a brake disc 22 coaxially fixedly connected to the rotating shaft of the limit sprockets 14. A brake cover 23 is movably fitted on the outer side of the rotating shaft of the limit sprockets 14. There are two brake discs 22 and two brake covers 23, respectively located on both sides of the limit sprockets 14. Two fixed discs 28 are movably fitted on the rotating shaft of the limit sprockets 14, and the two fixed discs 28 are also respectively located on the limit sprockets 14. On both sides, the fixed plate 28 is connected to the inner side of the end of the mounting block 11 via a fixed rod 29 connected at equal angles. The fixed plate 28 has an annular cavity 27 inside. A guide piston rod 25, communicating with the annular cavity 27, is provided at equal angles on the side of the fixed plate 28 facing the corresponding brake cover 23. A piston cavity 24 is provided at equal angles on the side of the brake cover 23 facing the corresponding fixed plate 28, and the piston end of the corresponding guide piston rod 25 slides seamlessly into each piston cavity 24. A spring 26, movably sleeved on the outside of the guide piston rod 25, is provided between the fixed plate 28 and the corresponding brake cover 23. The steering control mechanism also includes an inner cavity 15 located in the middle of the mounting block 11, with piston tubes 16 at both the upper and lower ends of the inner cavity 15. The two piston tubes 16 are respectively connected to the corresponding annular cavity 27 through the corresponding air guide tubes 30. The two ends of the double-ended piston rod 17 are seamlessly slidably connected inside the two piston tubes 16. Two support rods 18 are symmetrically arranged about the center of the axis of the double-ended piston rod 17 in the middle. The middle of the mounting block 11 is provided with a through groove 19 symmetrical about the center of the axis of the double-ended piston rod 17. The through groove 19 extends from the outside of the mounting block 11 into the inner cavity 15. The support rods 18 are movably arranged through the corresponding through grooves 19. The support rods 18 are connected to the corresponding through grooves 19 through the sliding block structure 20. Each support rod 18 is connected to a toggle block 21 at the end extending to the outside of the mounting block 11. The steering control mechanism also includes a shaft connected to the double-ended piston rod 17 at one end. Two limiting shafts 32 are located on the outer side of the middle part of the piston rod 17, and the two limiting shafts 32 are symmetrically arranged about the center of the axis of the double-ended piston rod 17. An inner cavity 15 is provided with a shaft connecting one end to two limiting tubes 31 on its inner side, and the other end of the corresponding limiting shaft 32 extends movably into each limiting tube 31. A coaxial disc is fixedly mounted on the limiting shaft 32, and a spring 33 is nested on the outer side of the limiting shaft 32 between the disc and the opening end of the corresponding limiting tube 31. In use, by contacting and being squeezed by the actuating block 21 with the corresponding push block 9, the double-ended piston rod 17 moves vertically. At this time, positive and negative pressures are generated in the two piston tubes 16 respectively, thereby generating positive and negative pressures in the annular cavities 27 at the upper and lower positions respectively.This arrangement allows the brake discs 22 and brake covers 23 at the upper and lower positions to move closer and further apart, respectively. This restricts the rotation of the upper limit sprocket 14, allowing it to move synchronously with the chain on the chain sprocket assembly 1. The lower limit sprocket 14 can rotate as the chain on the chain sprocket assembly 1 moves. Conversely, the lower annular cavity 27 generates positive pressure, and the upper annular cavity 27 generates negative pressure, causing the brake discs 22 and brake covers 23 at the upper and lower positions to move further apart and closer together, respectively. Since the upper and lower parts of the chain on the chain sprocket assembly 1 move in opposite directions, the limit sprockets 14 at different positions are fixed to different positions on the chain on the chain sprocket assembly 1, allowing the mounting block 11 to reciprocate. This prevents the servo motor 4 from frequently reversing, which would increase its failure rate and reduce its service life.

[0034] The brake disc 22 is frustum-shaped, and the brake cover 23 has a frustum-shaped groove that mates with the brake disc 22 on the side facing the brake disc 22. Both actuating blocks 21 are right-angled triangular prisms, and the inclined surfaces of the two actuating blocks 21 face opposite directions and are parallel to each other.

[0035] Example 2: To address the issue that adjusting the reciprocating movement range of the push rod in the chain-guided feeding and conveying mechanism of the previous chain braiding machine required the use of frequency converters and other equipment, leading to increased production costs, the following technical solution is provided: Specifically, the range adjustment mechanism includes a support frame 8 through which the limiting square rod 5 is movably passed, and a worm gear 7 is connected to the bearing on the support frame 8. The worm gear 7 is threadedly connected to the lower side of the screw 6. A push block 9 facing the corresponding actuating block 21 is provided on the support frame 8, and an actuating disc 10 coaxial with the worm gear 7 is connected after the bearing of one of the two shaft ends of the worm gear 7 passes through the support frame 8.

[0036] The push block 9 and the actuating disk 10 are respectively set on both sides of the corresponding support frame 8, and the support frame 8 is also provided with a square slot hole whose shape matches the limiting square rod 5. The limiting square rod 5 passes through the square slot hole and moves through the support frame 8 to limit the support frame 8 and ensure the stability of the worm gear 7. In use, by rotating the actuating disk 10, the worm gear 7 can be driven to rotate, which in turn allows the worm gear 7 to move along the axial direction of the screw 6. By changing the position of the worm gear 7, the range of reciprocating movement of the mounting block 11 can be adjusted, avoiding the problem of increased production costs caused by using frequency converters and other equipment to change the forward and reverse rotation frequency of the servo motor 4.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chain-type guiding feeding and conveying mechanism for a chain braiding machine, comprising a connecting frame (2) and a mounting frame (3), and a chain and sprocket assembly (1) with its two ends respectively mounted in the connecting frame (2) and the mounting frame (3), characterized in that: A servo motor (4) is installed on the outside of the mounting frame (3), and the shaft end bearing of the servo motor (4) passes through the mounting frame (3) and is connected to the sprocket key of the chain sprocket assembly (1) inside the mounting frame (3). Two crossbars are provided on both the connecting frame (2) and the mounting frame (3), and a screw (6) is fixedly connected between the upper crossbars, and a limiting square rod (5) is fixedly connected between the lower crossbars. The limiting square rod (5) and the screw (6) are both movably connected through the mounting block (11). Steering control mechanisms are installed on the inner sides of both the upper and lower ends of the mounting block (11), and a connecting block (12) is fixedly connected to the lower end of the mounting block (11). A push rod (13) for pushing the bar is installed on the connecting block (12), and two sets of range adjustment mechanisms are installed on the limiting square rod (5), and the two sets of range adjustment mechanisms correspond to the two sides of the mounting block (11). The steering control mechanism also includes an inner cavity (15) located in the middle of the mounting block (11), and piston tubes (16) are provided at both the upper and lower ends of the inner cavity (15). The upper and lower piston tubes (16) are respectively connected to the corresponding annular cavity (27) through corresponding air guides (30). The two piston tubes (16) are seamlessly slidably connected to the two ends of a double-ended piston rod (17), and two support rods (18) are symmetrically arranged about the center of the axis of the double-ended piston rod (17). The mounting block (11) is provided with a through groove (19) symmetrical about the axis of the double-headed piston rod (17) in the middle. The through groove (19) extends from the outside of the mounting block (11) into the inner cavity (15). The support rod (18) is provided to movably pass through the corresponding through groove (19). The support rod (18) is connected to the corresponding through groove (19) through the sliding block structure (20). Each of the support rods (18) is connected to a toggle block (21) at the end that extends out to the outside of the mounting block (11).

2. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 1, characterized in that: The mounting block (11) is provided with a square slot that matches the limiting rod (5). The limiting rod (5) passes through the mounting block (11) through the square slot to limit the mounting block (11) and ensure that it moves stably along the axial direction of the limiting rod (5).

3. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 2, characterized in that: The steering control mechanism includes a limiting sprocket (14) provided on the inner side of both the upper and lower ends of the mounting block (11), and the shaft end of the limiting sprocket (14) is connected to the bearing of the mounting block (11). The limiting sprocket (14) is engaged with the chain on the chain sprocket assembly (1) and is used to press against the chain on the chain sprocket assembly (1) to ensure that the chain is in a taut state.

4. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 3, characterized in that: The steering control mechanism also includes a brake disc (22) coaxially fixedly connected to the rotating shaft of the limiting sprocket (14), and a brake cover (23) is movably sleeved on the outer side of the rotating shaft of the limiting sprocket (14). There are two brake discs (22) and two brake covers (23), which are respectively located on both sides of the limiting sprocket (14). Two fixing discs (28) are also movably sleeved on the rotating shaft of the limiting sprocket (14), and the two fixing discs (28) are also respectively located on both sides of the limiting sprocket (14). The fixing discs (28) are connected to the mounting plate by fixing rods (29) at equal angles. The inner side of the end of the block (11) is connected, and the inside of the fixed plate (28) is provided with an annular cavity (27). The fixed plate (28) is provided with a guide piston rod (25) that communicates with the annular cavity (27) at an equal angle to the side facing the corresponding brake cover (23). The brake cover (23) is provided with a piston cavity (24) at an equal angle to the side facing the corresponding fixed plate (28). The piston end of the corresponding guide piston rod (25) is seamlessly slidably inserted into each piston cavity (24). A spring (26) is provided between the fixed plate (28) and the corresponding brake cover (23) and is movably sleeved on the outside of the guide piston rod (25).

5. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 4, characterized in that: The brake disc (22) is frustum-shaped, and the brake cover (23) is provided with a frustum-shaped groove that mates with the brake disc (22) on the side facing the brake disc (22).

6. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 5, characterized in that: Both of the aforementioned toggle blocks (21) are right-angled triangular prisms, and the inclined surfaces of the two toggle blocks (21) face opposite directions, and the inclined surfaces of the two toggle blocks (21) are arranged parallel to each other.

7. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 6, characterized in that: The steering control mechanism also includes two limiting shafts (32) with one end shaft connected to the outer side of the middle part of the double-ended piston rod (17), and the two limiting shafts (32) are symmetrically arranged about the axis of the double-ended piston rod (17). The inner cavity (15) is provided with two limiting tubes (31) with one end shaft connected to its inner side, and the other end of the corresponding limiting shaft (32) is movably inserted into each limiting tube (31). A disc coaxial with it is fixedly provided on the limiting shaft (32), and a spring (33) nested on the outer side of the limiting shaft (32) is provided between the disc and the opening end of the corresponding limiting tube (31).

8. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 7, characterized in that: The range adjustment mechanism includes a support frame (8) through which the limiting square rod (5) moves, and a worm gear (7) is connected to the bearing on the support frame (8). The worm gear (7) is threaded to the lower side of the screw (6). A push block (9) facing the corresponding actuating block (21) is provided on the support frame (8). After the bearing of one of the two shaft ends of the worm gear (7) passes through the support frame (8), an actuating disc (10) coaxial with the worm gear (7) is connected.

9. The chain-type guiding feeding and conveying mechanism of a chain braiding machine according to claim 8, characterized in that: The push block (9) and the actuating disk (10) are respectively set on both sides of the corresponding support frame (8), and the support frame (8) is also provided with a square slot hole whose shape matches the limiting square rod (5). The limiting square rod (5) passes through the support frame (8) through the square slot hole to limit the support frame (8) and ensure the stability of the worm gear (7).

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