Double-cam single-drive machine head

Abstract

The invention relates to the technical field of driving machine heads, and discloses a double-cam single-driving machine head which comprises a main shaft, the main shaft is rotationally connected to the inner side of a shell, a first rotating ring is fixedly connected to the outer wall of the main shaft, a sleeve shaft is fixedly connected to the rear end of the main shaft, and a second rotating ring is rotationally connected to the outer wall of the sleeve shaft; a pause ring is fixedly connected to the front end of the sleeve shaft, a ring groove is formed in the front side of the pause ring, a first rotating rod is rotationally connected to the inner side of the shell, a first connecting rod is fixedly connected to the outer wall of the first rotating rod, and a cylinder is rotationally connected to the other end of the first connecting rod. The main shaft rotates to drive the first rotating ring and the sleeve shaft to rotate synchronously, the second rotating ring drives the pause ring to rotate accordingly, the cylinder slides in the ring groove, and when the ring groove rotates to the top, the cylinder is pushed to drive the first connecting rod to swing upwards around the first rotating rod, so that the pause ring is decelerated, stable deceleration of equipment when the equipment runs to a preset position is achieved, and high-speed collision of components is avoided; and mechanical loss and operation noise are reduced.

Description

Technical Field

[0001] This invention relates to the field of drive head technology, specifically a dual-cam single-drive drive head. Background Technology

[0002] A jump motor is a special drive device with periodic reciprocating jumping motion characteristics. It is used in small-scale automated assembly, precision parts pressing, and micro-material transfer scenarios. Its core is to convert the continuous rotational motion of the motor into high-frequency jumping linear displacement at the actuator through the reciprocating linkage of the mechanical structure. This can effectively improve the accuracy and efficiency of small component assembly and reduce the labor intensity of manual operation.

[0003] The jumping motor downward movement mechanism is the core execution component of the jumping motor and a key transmission structure connecting the motor's power output end and the terminal execution component. This mechanism receives the torque of the jumping motor and converts it into a vertical downward force, driving the needle bar and presser foot execution component to complete precise pressing and positioning operations. Its operating accuracy and stability directly determine the quality and efficiency of the jumping motor's terminal operation.

[0004] Although the existing jumping motor downward movement mechanism converts the rotational motion of the motor into the linear downward movement of the actuator through the linkage of the linkage assembly, thus avoiding the problem of insufficient displacement accuracy caused by direct drive, its linkage transmission structure lacks an effective buffer and deceleration design. During operation, the transmission assembly driving the needle bar and the linkage structure driving the presser foot are independently controlled, and their movement speeds cannot be synchronized. When the needle bar and the presser foot make contact and collide after completing the operation, the speed difference generates a large impact noise, which will aggravate the wear of the components due to high-frequency impact and reduce the service life of the mechanism. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a dual-cam single-drive head, which solves the problem of significant impact noise caused by the speed difference when the needle bar and presser foot come into contact and collide during the operation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-cam single-drive head, comprising; The outer casing is used to support the overall equipment; The connecting mechanism, located inside the housing, is used to generate a speed difference between the connecting rods inside the linkage device; The linkage mechanism, located in the middle of the housing, is used to transmit and convert power to achieve downward movement; The moving mechanism, located on the right side of the housing, is used to reduce noise when moving up and down.

[0007] Preferably, the connecting mechanism includes a main shaft rotatably connected to the inner side of the housing, a rotating ring 1 fixedly connected to the outer wall of the main shaft, a sleeve shaft fixedly connected to the rear end of the main shaft, a rotating ring 2 rotatably connected to the outer wall of the sleeve shaft, a stop ring fixedly connected to the front end of the sleeve shaft, an annular groove being formed on the front side of the stop ring, a rotating rod 1 rotatably connected to the inner side of the housing, a connecting rod 1 fixedly connected to the outer wall of the rotating rod 1, and a cylinder rotatably connected to the other end of the connecting rod 1.

[0008] Preferably, the linkage mechanism includes a first rotating shaft, which is rotatably connected to the front side of the outer casing. A first connecting rod is rotatably connected to the outer wall of the first rotating shaft. A second rotating shaft is fixedly connected to the middle of the first connecting rod. The second rotating shaft is rotatably connected to the bottom of the first rotating ring. A support frame is fixedly connected inside the outer casing. The rear end of the second rotating shaft passes through the support frame. The right end of the first connecting rod is rotatably connected to the second connecting rod. A second rotating rod is rotatably connected to the inner side of the outer casing. The rear end of the second rotating rod is fixedly connected to the first rotating shaft. Two first connecting plates are fixedly connected to the outer wall of the first rotating shaft. One of the first connecting plates is rotatably connected to the other end of the second connecting rod. A linkage assembly is provided on the rear side of the second rotating shaft.

[0009] Preferably, the moving mechanism includes a guide rod, which is fixedly connected to the right side of the housing. A sleeve rod is slidably connected to the outer wall of the guide rod. The two ends of the sleeve rod are fixedly connected to the same U-shaped frame. A fixing block is slidably connected to the outer wall of the sleeve rod. A spring is fixedly connected to the top of the fixing block. A downward moving component is provided on the right side of the fixing block.

[0010] Preferably, the linkage assembly includes a second connecting rod, which is rotatably connected to the outer wall of a second rotating shaft. The rear end of the second rotating shaft is fixedly connected to a second rotating shaft, which is rotatably connected to the inner wall of the outer casing. A connecting shaft is fixedly connected to the middle of the second connecting rod. A fixing rod is fixedly connected to the bottom of the second rotating ring, which is rotatably connected to the outer wall of the connecting shaft. A rotating plate is rotatably connected to the right end of the second connecting rod, and the other end of the rotating plate is rotatably connected to the rear side of the U-shaped frame.

[0011] Preferably, the downward moving component includes a fixing ring, which is fixedly connected to the right side of the fixing block. A syringe is fixedly connected to the middle of the fixing ring. A support block is rotatably connected to the rear end of another connecting plate. A connecting block is fixedly connected to the right side of the support block. A pressure foot is fixedly connected to the right side of the connecting block. The syringe is slidably connected to the middle of the connecting block and the pressure foot. A needle bar is fixedly connected to the bottom of the syringe.

[0012] Preferably, both ends of the sleeve are fixedly connected with washers, and the washers fit against the U-shaped frame.

[0013] Preferably, a locking ring is fixedly connected to the rear end of the spindle, and the locking ring is in contact with the outer wall of the housing.

[0014] Preferably, the annular groove is elliptical, and the cylinder is slidably connected in the middle of the annular groove.

[0015] Preferably, a positioning hook is fixedly connected to the bottom of the outer shell, and the positioning hook is slidably connected to the left side of the support block.

[0016] This invention provides a dual-cam single-drive headstock. It has the following advantages: 1. This invention connects the main shaft to an external motor. The rotation of the main shaft drives the first rotating ring and the sleeve shaft to rotate synchronously. The second rotating ring then drives the stop ring to rotate. The cylinder slides in the ring groove. When the ring groove rotates to the top, it pushes the cylinder to drive the connecting rod to swing upward around the rotating rod, causing the stop ring to decelerate. This achieves smooth deceleration of the equipment when it reaches the preset position, avoids high-speed collisions of parts, and reduces mechanical wear and operating noise.

[0017] 2. This invention uses the rotation of the first rotating ring to drive the rotation of the second rotating shaft, causing the first connecting rod to swing downward around the first rotating shaft. This pulls the second connecting rod, causing one of the connecting plates and the first rotating shaft to rotate to the left around the second rotating rod, thus moving the other connecting plate upward. At the same time, the rotation of the second rotating ring pushes the second connecting rod upward around the second rotating shaft through the fixed rod and connecting shaft, pulling the rotating plate upward. This achieves the power linkage between the connecting mechanism and the moving mechanism, transmitting torque and displacement, and ensuring that the connecting rod assembly moves in an orderly manner according to the preset trajectory.

[0018] 3. In this invention, the rotating plate moves upward, causing the U-shaped frame to move upward along the guide rod. The sleeve rod then moves the fixed block synchronously. The spring buffers and dampens the shock when the mechanism folds up and down. The fixed block moves the fixed ring, syringe, and needle bar up and down. The support block moves upward with the connecting plate, causing the presser foot to rise synchronously. When the pause ring reaches the top, the needle bar decelerates and its speed becomes consistent with that of the presser foot. This achieves coordinated lifting and lowering of the needle bar and the presser foot, significantly reducing the noise generated by their collision. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a partial schematic diagram of the connection mechanism of the present invention; Figure 4 This is a partial schematic diagram of the linkage mechanism of the present invention; Figure 5 This is a partial schematic diagram of the linkage component of the present invention; Figure 6 This is a breakdown diagram of the linkage components of the present invention; Figure 7 This is an exploded view of the moving mechanism of the present invention; Figure 8 This is a schematic diagram of the downward displacement component of the present invention.

[0020] Among them, 1. Outer shell; 2. Connecting mechanism; 21. Main shaft; 22. Rotary ring one; 23. Sleeve shaft; 24. Rotary ring two; 25. Stop ring; 26. Ring groove; 27. Rotating rod one; 28. Connecting rod one; 29. ​​Cylinder; 3. Linkage mechanism; 31. Rotating shaft one; 32. Connecting rod one; 33. Rotating shaft two; 34. Connecting rod two; 35. Rotating rod two; 36. Rotating shaft one; 37. Connecting plate one; 38. Linkage assembly; 381. Connecting rod 2; 382, ​​Rotating shaft 2; 383, Connecting shaft; 384, Fixed rod; 385, Rotating plate; 4, Moving mechanism; 41, Guide rod; 42, Sleeve rod; 43, U-shaped frame; 44, Fixed block; 45, Spring; 46, Lowering assembly; 461, Fixed ring; 462, Support block; 463, Connecting block; 464, Presser foot; 465, Syringe; 466, Needle bar; 5, Support frame; 6, Gasket; 7, Locking ring; 8, Positioning hook. Detailed Implementation

[0021] The technical solutions in 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.

[0022] Reference Figure 1 This invention provides a dual-cam single-drive head, characterized in that it includes: a housing 1 for supporting the overall equipment; a connecting mechanism 2 located inside the housing 1 for generating a speed difference by linking the connecting rods inside the equipment; a connecting rod mechanism 3 located in the middle of the housing 1 for transmitting and converting power to achieve downward movement; and a moving mechanism 4 located on the right side of the housing 1 for reducing noise during vertical movement.

[0023] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6The connecting mechanism 2 includes a main shaft 21, which is rotatably connected to the inner side of the housing 1 to transmit the driving force input from the external motor. A rotating ring 22 is fixedly connected to the outer wall of the main shaft 21 and rotates synchronously with the main shaft 21 to drive the subsequent linkage mechanism 3. A sleeve shaft 23 is fixedly connected to the rear end of the main shaft 21 to receive the torque of the main shaft 21 and transmit it to the stop ring 25. A rotating ring 24 is rotatably connected to the outer wall of the sleeve shaft 23, which rotates relative to the sleeve shaft 23 and operates in conjunction with the drive linkage assembly 38. The front end of the sleeve shaft 23... A stop ring 25 is fixedly connected, which achieves the deceleration and stop action of the mechanism by rotating itself. A ring groove 26 is opened on the front side of the stop ring 25 to guide the cylinder 29 to slide along a preset trajectory. A rotating rod 27 is rotatably connected to the inner side of the outer shell 1, which serves as the rotation fulcrum of the connecting rod 28. The outer wall of the rotating rod 27 is fixedly connected to the connecting rod 28, which transmits the displacement of the cylinder 29 and converts it into its own swing. The other end of the connecting rod 28 is rotatably connected to the cylinder 29, which slides in the ring groove 26 and drives the connecting rod 28 to swing. Specifically, the main shaft 21 of the connecting mechanism 2 is used to connect to the output end of an external motor to obtain driving force. The rotating ring 22 fixed on its outer wall rotates synchronously with the main shaft 21. The sleeve shaft 23 fixed at the rear end of the main shaft 21 drives the rotating ring 24 connected to its outer wall and the stop ring 25 fixed at the front end to rotate synchronously. The annular groove 26 opened on the front side of the stop ring 25 can accommodate the cylinder 29 at the end of the connecting rod 28 on the outer wall of the inner rotating rod 27 of the outer shell 1 and guide its movement. When the annular groove 26 rotates to the top, the stop ring 25 pushes the cylinder 29 to drive the connecting rod 28 to rotate upward around the rotating rod 27, thereby causing the stop ring 25 to produce a deceleration effect when it rotates to the top.

[0024] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6The linkage mechanism 3 includes a rotating shaft 31, which is rotatably connected to the front side of the outer casing 1, serving as a rotational support point for the connecting rod 32. The connecting rod 32 is rotatably connected to the outer wall of the rotating shaft 31, swinging around the rotating shaft 31 to transmit power. A rotating shaft 33 is fixedly connected to the middle of the connecting rod 32, receiving the torque of the rotating ring 22 and driving the connecting rod 32 to move. The rotating shaft 33 is rotatably connected to the bottom of the rotating ring 22, rotating with the rotating ring 22 and synchronously driving the connecting rod 32 to move. A support frame 5 is fixedly connected inside the outer casing 1, providing auxiliary support for the rotating shaft 33. The rear end of the rotating shaft 33 passes through the support frame 5, improving the stability of the rotating shaft 33 during rotation. A connecting rod 34 is rotatably connected to the right end of the first 32, transmitting the swing displacement of the connecting rod 32. A rotating rod 35 is rotatably connected to the inner side of the outer shell 1, serving as the mounting carrier and rotation fulcrum for the rotating shaft 36. The rear end of the rotating rod 35 is fixedly connected to the rotating shaft 36, which rotates around the rotating rod 35 and drives the connecting plate 37 to swing. Two connecting plates 37 are fixedly connected to the outer wall of the rotating shaft 36, rotating synchronously with the rotating shaft 36 and realizing the force transmission in different directions. One of the connecting plates 37 is rotatably connected to the other end of the connecting rod 34, bearing the tension of the connecting rod 34 and driving the rotating shaft 36 to rotate. A linkage component 38 is provided on the rear side of the rotating shaft 33, realizing the power linkage between the rotating ring 24 and the U-shaped frame 43. The linkage assembly 38 includes a second connecting rod 381, which serves as an intermediate carrier for power transmission. The second connecting rod 381 is rotatably connected to the outer wall of the second rotating shaft 33 and swings around the second rotating shaft 33 to transmit power. The rear end of the second rotating shaft 33 is fixedly connected to a second rotating shaft 382, ​​which further improves the rotational stability of the second rotating shaft 33. The second rotating shaft 382 is rotatably connected to the inner wall of the outer casing 1, which acts as a radial limit for the second rotating shaft 33. The middle part of the second connecting rod 381 is fixedly connected to a connecting shaft 383, which receives and transmits the thrust of the fixed rod 384. Connecting rod 281, the bottom of rotating ring 24 is fixedly connected to a fixed rod 384, which rotates with rotating ring 24 and pushes the connecting shaft 383 to move. The fixed rod 384 is rotatably connected to the outer wall of connecting shaft 383, realizing flexible rotation between fixed rod 384 and connecting rod 281. The right end of connecting rod 281 is rotatably connected to a rotating plate 385, which transmits the swing displacement of connecting rod 281 to U-shaped frame 43. The other end of rotating plate 385 is rotatably connected to the rear side of U-shaped frame 43, which pulls U-shaped frame 43 to realize up and down reciprocating movement. Specifically, the rotating shaft 31 of the linkage mechanism 3 is rotatably connected to the front side of the outer shell 1. A rotating shaft 33 is fixed in the middle of the connecting rod 32 rotatably connected to its outer wall. This rotating shaft 33 is rotatably connected to the bottom of the rotating ring 22 and its rear end passes through the support frame 5 inside the outer shell 1. The connecting rod 34 rotatably connected to the right end of the connecting rod 32 is rotatably connected to one of the connecting plates 37 on the outer wall of the rear end of the rotating shaft 36 of the rotating rod 35 inside the outer shell 1. In the linkage assembly 38 behind the rotating shaft 33, the connecting rod 381 is rotatably connected to the outer wall of the rotating shaft 33, and the rotating shaft 382 at the rear end of the rotating shaft 33 is rotatably connected to the inner wall of the outer shell 1. The connecting shaft 383 in the middle of 81 is rotatably connected to the fixed rod 384 at the bottom of the second rotating ring 24. The rotating plate 385 at the right end of the second connecting rod 381 is rotatably connected to the rear side of the U-shaped frame 43. When working, the rotation of the first rotating ring 22 drives the second rotating shaft 33 to rotate and causes the first connecting rod 32 to rotate downward around the first rotating shaft 31. This pulls the second connecting rod 34 to drive one of the first connecting plates 37 and the first rotating shaft 36 to rotate to the left around the second rotating rod 35, so that the other connecting plate 37 rotates upward. At the same time, the rotation of the second rotating ring 24 pushes the second connecting rod 381 to rotate upward around the second rotating shaft 33 through the fixed rod 384 and the connecting shaft 383, pulling the rotating plate 385 to move upward.

[0025] Reference Figure 5 , Figure 7 and Figure 8The moving mechanism 4 includes a guide rod 41, which is fixedly connected to the right side of the outer casing 1 to precisely guide the sliding direction of the sleeve rod 42. The sleeve rod 42 is slidably connected to the outer wall of the guide rod 41, driving the U-shaped frame 43 to move up and down along the guide rod 41. The two ends of the sleeve rod 42 are fixedly connected to the same U-shaped frame 43, which receives the driving force of the rotating plate 385 and transmits it to the sleeve rod 42. The outer wall of the sleeve rod 42 is slidably connected to a fixing block 44, which drives the lowering component 46 to move up and down synchronously. A spring 45 is fixedly connected to the top of the fixing block 44, which plays a buffering and shock-absorbing role when the mechanism folds up and down. The lowering component 46 is provided on the right side of the fixing block 44 to realize the coordinated movement of the needle bar 466 and the presser foot 464. The lowering component 46 includes a fixing ring 461, which serves as the mounting and fixing carrier for the syringe 465. The fixing ring 461 is fixedly connected to the fixing block 4. On the right side of 4, the syringe 465 moves synchronously with the fixed block 44 and drives the syringe 465 to move. The syringe 465 is fixedly connected to the middle of the fixed ring 461, which guides and limits the movement of the needle bar 466. The rear end of another connecting plate 37 is rotatably connected to the support block 462, which receives the power of the connecting plate 37 and drives the connecting block 463 to move. The right side of the support block 462 is fixedly connected to the connecting block 463, which transmits the displacement of the support block 462 and drives the presser foot 464 to move. The right side of the connecting block 463 is fixedly connected to the presser foot 464, which works with the needle bar 466 to complete the target action. The syringe 465 is slidably connected in the middle of the connecting block 463 and the presser foot 464, realizing the relative sliding of the syringe 465 with the connecting block 463 and the presser foot 464. The bottom of the syringe 465 is fixedly connected to the needle bar 466, which moves synchronously with the syringe 465 and completes the core operation action. Specifically, the guide rod 41 of the moving mechanism 4 is fixedly connected to the right side of the outer casing 1. The sleeve rod 42, which is slidably connected to its outer wall, has the same U-shaped frame 43 fixed at both ends. A fixing block 44 is also slidably connected to the outer wall of the sleeve rod 42. The spring 45 at the top of the fixing block 44 acts as a buffer when the mechanism moves up and down, preventing the fixing block 44 from impacting and shaking at the reversing point. In the downward moving assembly 46 on the right side of the fixing block 44, a fixing ring 461 is fixed to the fixing block 44, and a syringe 465 is fixed in its middle. On the right side of the support block 462, which is rotatably connected to the rear end of another connecting plate 37, a connecting block 463 and a pressure plate are sequentially fixed. The foot 464 and syringe 465 are slidably connected in the middle of the connecting block 463 and the presser foot 464, and the needle bar 466 is fixed at the bottom. During operation, the rotating plate 385 moves upward, driving the U-shaped frame 43 to move upward along the guide rod 41. The sleeve rod 42 moves synchronously with the fixing block 44, and then drives the syringe 465 and the needle bar 466 to move up and down through the fixing ring 461. At the same time, the support block 462 moves upward with the connecting plate 37 and drives the connecting block 463 and the presser foot 464 to move upward. When the stop ring 25 rotates to the top, the needle bar 466 decelerates, so that its rising speed is close to that of the presser foot 464, reducing the noise generated when the two collide.

[0026] Reference Figure 3 , Figure 4 and Figure 7 Both ends of the sleeve rod 42 are fixedly connected with gaskets 6 to reduce frictional loss at the contact point between the sleeve rod 42 and the U-shaped frame 43. The gaskets 6 are in contact with the U-shaped frame 43 to improve the structural sealing of the connection between the sleeve rod 42 and the U-shaped frame 43. The rear end of the main shaft 21 is fixedly connected with a locking ring 7 to limit the axial position of the main shaft 21. The locking ring 7 is in contact with the outer wall of the outer shell 1 to prevent axial movement when the main shaft 21 rotates. The annular groove 26 is elliptical and guides the cylinder 29 to slide along a preset path through a curved trajectory. The cylinder 29 is slidably connected in the middle of the annular groove 26 to convert the rotational displacement of the annular groove 26 into the swinging power of the connecting rod 28. The bottom of the outer shell 1 is fixedly connected with a positioning hook 8 to precisely limit the movement direction of the support block 462. The positioning hook 8 is slidably connected to the left side of the support block 462 to prevent lateral displacement of the support block 462 during movement. Specifically, the gaskets 6 fixed at both ends of the sleeve rod 42 fit into the U-shaped frame 43, which can reduce the direct friction between the sleeve rod 42 and the U-shaped frame 43 and improve the stability of the connection. The locking ring 7 fixed at the rear end of the main shaft 21 fits into the outer wall of the outer shell 1, which can limit the axial position of the main shaft 21 and prevent it from moving during rotation. The elliptical annular groove 26 allows the cylinder 29 to slide in its middle, and can guide the cylinder 29 to move along a preset path through its own curved trajectory, which in turn realizes the deceleration function of the stop ring 25. The positioning hook 8 fixed at the bottom of the outer shell 1 slides on the left side of the support block 462, which can guide and limit the movement direction of the support block 462 and prevent it from deviating during movement.

[0027] Working principle: When using this equipment, the main shaft 21 must first be connected to the output end of the external motor. At this time, the rotation of the main shaft 21 drives the rotating ring 22 and the sleeve shaft 23 to rotate, so that the rotating ring 24 drives the stop ring 25 to rotate. At the same time, the cylinder 29 moves inside the ring groove 26. When the ring groove 26 rotates to the top, the stop ring 25 pushes the cylinder 29 to drive the connecting rod 28 to rotate upward around the rotating rod 27, so that the stop ring 25 decelerates when it reaches the top. Furthermore, when the rotating ring 22 rotates, it drives the bottom rotating shaft 33 to rotate, thereby causing the connecting rod 32 to rotate downward around the rotating shaft 31. At this time, it pulls the right connecting rod 34 to rotate downward, causing the connecting rod 34 to pull one of the connecting plates 37 to drive the rotating shaft 36 to rotate to the left around the rotating rod 35, and the other connecting plate 37 to rotate upward. At the same time, the rotation of the rotating ring 24 drives the fixed rod 384 to push the connecting rod 381 upward around the rotating shaft 33 through the connecting shaft 383, pulling the rotating plate 385 to move upward. Finally, when the pull plate 385 moves upward, it drives the U-shaped frame 43 to move upward on the outer wall of the guide rod 41. The sleeve rod 42 moves upward with the fixing block 44. When it moves back and forth, the spring 45 acts as a buffer to prevent the fixing block 44 from impacting and shaking at the turning point. The fixing ring 461 moves with it, driving the syringe 465 and the needle bar 466 to move up and down. The support block 462 moves upward with the connecting plate 37, causing the connecting block 463 to drive the presser foot 464 to move upward. When the stop ring 25 rotates to the top, the needle bar 466 decelerates and its rising speed is close to that of the presser foot 464, which reduces the noise when the needle bar 466 and the presser foot 464 collide.

[0028] 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 dual-cam single-drive head, characterized in that, include; The outer casing (1) is used to support the overall equipment; The connecting mechanism (2) is located inside the housing (1) and is used to generate a speed difference in the linkage within the device; The linkage mechanism (3), located in the middle of the housing (1), is used to convert the rotational force into the kinetic force; The moving mechanism (4), located on the right side of the housing (1), is used to reduce noise when moving up and down.

2. The dual-cam single-drive head according to claim 1, characterized in that, The connecting mechanism (2) includes a main shaft (21), which is rotatably connected to the inner side of the outer shell (1). A rotating ring (22) is fixedly connected to the outer wall of the main shaft (21). A sleeve shaft (23) is fixedly connected to the rear end of the main shaft (21). A rotating ring (24) is rotatably connected to the outer wall of the sleeve shaft (23). A stop ring (25) is fixedly connected to the front end of the sleeve shaft (23). A ring groove (26) is opened on the front side of the stop ring (25). A rotating rod (27) is rotatably connected to the inner side of the outer shell (1). A connecting rod (28) is fixedly connected to the outer wall of the rotating rod (27). A cylinder (29) is rotatably connected to the other end of the connecting rod (28).

3. The dual-cam single-drive head according to claim 2, characterized in that, The linkage mechanism (3) includes a rotating shaft (31), which is rotatably connected to the front side of the outer shell (1). A connecting rod (32) is rotatably connected to the outer wall of the rotating shaft (31). A rotating shaft (33) is fixedly connected to the middle of the connecting rod (32). The rotating shaft (33) is rotatably connected to the bottom of the rotating ring (22). A support frame (5) is fixedly connected inside the outer shell (1). The rear end of the rotating shaft (33) passes through the support frame (5). A connecting rod (34) is rotatably connected to the right end of the connecting rod (32). A rotating rod (35) is rotatably connected to the inner side of the outer shell (1). A rotating shaft (36) is fixedly connected to the rear end of the rotating rod (35). Two connecting plates (37) are fixedly connected to the outer wall of the rotating shaft (36). One of the connecting plates (37) is rotatably connected to the other end of the connecting rod (34). A linkage component (38) is provided on the rear side of the rotating shaft (33).

4. A dual-cam single-drive head according to claim 3, characterized in that, The moving mechanism (4) includes a guide rod (41), which is fixedly connected to the right side of the outer shell (1). A sleeve rod (42) is slidably connected to the outer wall of the guide rod (41). The two ends of the sleeve rod (42) are fixedly connected to the same U-shaped frame (43). A fixing block (44) is slidably connected to the outer wall of the sleeve rod (42). A spring (45) is fixedly connected to the top of the fixing block (44). A downward moving component (46) is provided on the right side of the fixing block (44).

5. A dual-cam single-drive head according to claim 3, characterized in that, The linkage component (38) includes a second connecting rod (381), which is rotatably connected to the outer wall of a second rotating shaft (33). The rear end of the second rotating shaft (33) is fixedly connected to a second rotating shaft (382), which is rotatably connected to the inner wall of the outer shell (1). The middle part of the second connecting rod (381) is fixedly connected to a connecting shaft (383). The bottom of the second rotating ring (24) is fixedly connected to a fixing rod (384), which is rotatably connected to the outer wall of the connecting shaft (383). The right end of the second connecting rod (381) is rotatably connected to a rotating plate (385), and the other end of the rotating plate (385) is rotatably connected to the rear side of the U-shaped frame (43).

6. A dual-cam single-drive head according to claim 4, characterized in that, The lowering assembly (46) includes a fixing ring (461) which is fixedly connected to the right side of the fixing block (44). A syringe (465) is fixedly connected to the middle of the fixing ring (461). A support block (462) is rotatably connected to the rear end of another connecting plate (37). A connecting block (463) is fixedly connected to the right side of the support block (462). A pressure foot (464) is fixedly connected to the right side of the connecting block (463). The syringe (465) is slidably connected to the middle of the connecting block (463) and the pressure foot (464). A needle bar (466) is fixedly connected to the bottom of the syringe (465).

7. A dual-cam single-drive head according to claim 4, characterized in that, Both ends of the sleeve rod (42) are fixedly connected with gaskets (6), and the gaskets (6) are in contact with the U-shaped frame (43).

8. A dual-cam single-drive head according to claim 2, characterized in that, A locking ring (7) is fixedly connected to the rear end of the main shaft (21), and the locking ring (7) is in contact with the outer wall of the outer shell (1).

9. A dual-cam single-drive head according to claim 2, characterized in that, The annular groove (26) is elliptical, and the cylinder (29) is slidably connected to the middle of the annular groove (26).

10. A dual-cam single-drive head according to claim 1, characterized in that, The bottom of the outer shell (1) is fixedly connected to a positioning hook (8), which is slidably connected to the left side of the support block (462).

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