A lid assembly machine with a lid precision assembly and pressing mechanism

Abstract

This invention relates to the field of cap assembly technology and discloses a precise cap assembly and pressing mechanism for a cap assembly machine. The mechanism includes a base, which is fixedly mounted on the container feeding mechanism of the cap assembly machine. A side plate A is fixedly mounted on the top of the base. A receiving component is rotatably disposed between the two side plates A. When the opening of the receiving component is tilted upwards, it aligns with the unloading plate to receive the cap body output from the unloading plate. When the receiving component rotates to a horizontal state, it drives the cap body to vertically align with the container below. This precise cap assembly and pressing mechanism for a cap assembly machine effectively solves the problem in the prior art that, for larger cap assembly tasks, uniform feeding and gripping of caps requires larger-sized feeding equipment and robotic arms, increasing production costs. Furthermore, larger caps have relatively higher weight, requiring greater stability from the robotic arms, making them unsuitable for assembling larger caps.

Description

Technical Field

[0001] This invention relates to the field of lid assembly technology, and more specifically to a lid precision assembly and pressing mechanism for a lid assembly machine. Background Technology

[0002] The main functions of a lid include shielding from dust and contaminants, sealing, preventing tampering, and providing security. A lid can cover the top of a container or open item to prevent dust and contaminants from entering and to keep the interior clean. In food and beverage packaging, bottle caps have the property of keeping the contents sealed to prevent contamination or spoilage, while also providing tamper-proof and security protection.

[0003] In the traditional cap assembly process, the caps need to be transported to the gripping position by a precise feeding device, and then the caps are gripped and transferred by a robotic arm for spin-forming installation. This assembly method is usually used for smaller bottle cap assembly work. For larger cap assembly work, the uniform feeding and gripping of caps requires larger feeding devices and robotic arms, which increases production costs. In addition, larger caps have relatively higher quality and require higher stability from the robotic arm, making it difficult to adapt to the assembly work of larger caps. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a precise cap assembly and pressing mechanism for a cap assembly machine. This mechanism effectively solves the problem that, for larger cap assembly tasks, uniform loading and gripping of caps requires larger-sized loading equipment and robotic arms, increasing production costs. Furthermore, larger caps have relatively higher weight, placing greater demands on the stability of robotic arms, making them unsuitable for assembling larger caps.

[0006] Technical Solution

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

[0008] This invention provides a cap precision assembly and pressing mechanism for a cap assembly machine, comprising:

[0009] The base is fixedly installed on the container feeding mechanism of the lid assembly machine, and a side plate A is fixedly provided on the top of the base;

[0010] A receiving component is rotatably disposed between two side plates A. When the opening of the receiving component is tilted upward, it is aligned with the feeding plate and is used to receive the lid body output by the feeding plate. When the receiving component is rotated to a horizontal state, it drives the lid body to be vertically aligned with the container below.

[0011] A spinning assembly, located at the top of side plate A, is used to spin the cover body inside the receiving assembly;

[0012] The spinning assembly includes a spinning head for spinning the cover body, a lifting plate for driving the spinning head to rise and fall, and a motor for driving the spinning head to rotate. The motor is fixedly mounted on the top of the lifting plate, and the lifting plate is slidably mounted on the top of the side plate A via a sliding column. The lifting plate is connected to the lifting drive device of the cover assembly machine.

[0013] Furthermore, it also includes a positioning clamp, which is symmetrically arranged inside the base. The positioning clamp is driven by an external force to clamp the container and is used to vertically align the container conveyed by the container feeding mechanism with the spinning head.

[0014] Furthermore, it also includes a support plate, which is fixed to the outside of the ring. The ring is located above the container positioned by the positioning clamp and is coaxial with the container. The ring moves downward under the downward rotational force of the lid body and automatically resets after assembly due to the bottom elastic force.

[0015] Furthermore, the receiving component includes a top plate rotatably disposed between the side plates A, a V-shaped plate fixedly disposed at the bottom of the top plate for positioning the cover body, and a bottom plate slidably disposed at the bottom of the V-shaped plate;

[0016] The bottom plate slides as the top plate rotates, allowing the bottom of the receiving component to be closed and opened in both receiving and spinning states.

[0017] Furthermore, a sliding shaft A is fixedly provided at the bottom of the base plate, and both ends of the sliding shaft A are slidably disposed inside the side plate A. A limiting hole for slidingly installing the sliding shaft A is provided inside the side plate A, and the sliding shaft A is driven by an external force to slide along the limiting hole.

[0018] Furthermore, the receiving component also includes a cover sleeve that cooperates with the top of the cover body. A sliding shaft B is fixedly provided on the top of the cover sleeve. The sliding shaft B is slidably disposed inside the top plate. A connecting post is fixedly provided on the top of the sliding shaft B. The connecting post cooperates with the spinning head. The connecting post rotates and presses down under the drive of the spinning head.

[0019] Furthermore, a cover plate is fixedly installed on the outer side of the side plate A, and a magnet is fixedly installed on the inner side of the cover plate for adsorbing the connecting column in the material receiving state.

[0020] Furthermore, the bottom of the cover sleeve is provided with a mating groove that matches the cover body, and the inner side of the mating groove is provided with an inclined surface; a boss is fixedly provided on the outer side of the cover sleeve, and a stop is slidably provided on the inner side of the boss. The stop is distributed in a ring array and is used to cooperate with the protruding structure on the outer side of the cover body during spinning.

[0021] Furthermore, it also includes positioning posts, which are rotatably disposed on the outside of the V-shaped plate. Side holes are provided on both sides of the V-shaped plate corresponding to the positioning posts, and the outside of the positioning posts is provided with cut surfaces.

[0022] The positioning post is used to position the cover body inside the V-shaped plate. The cut surface is located at the top of the positioning post in the receiving state, and is driven by external force to rotate to the outside of the cover body in the spinning state.

[0023] Furthermore, it also includes a clamping assembly for clamping the cover body inside the V-shaped plate. The clamping assembly includes a rotating shaft rotatably connected to the outside of the top plate and a vertical rod for driving the rotating shaft to rotate. The vertical rod is slidably disposed on the outside of the top plate along the axial direction, and a clamping rod is fixedly disposed on the outside of the rotating shaft.

[0024] The vertical rod is driven to rotate by the pressure plate, and the shaft is automatically reset by the torque.

[0025] Beneficial effects

[0026] The technical solution provided by this invention has the following advantages compared with the prior art:

[0027] This invention features a receiving component that receives the lid body. The receiving component, via a V-shaped plate, limits the lid body's position, automatically horizontally positioning it when the lid body rotates to a horizontal state. At this point, the lid body is coaxially aligned with the container below, ensuring accurate subsequent assembly. This eliminates the need for a precise lid loading device and a robotic arm, reducing production costs. Furthermore, taking advantage of the lid body's large size and mass, during the receiving process, the tilted receiving component moves the connecting post closer to the magnet, causing the magnet to attract the connecting post and move the lid away from the bottom. The plate prevents interference with the entry of the cover body. After receiving the material and adjusting it to a horizontal position, the receiving component drives the connecting column to disengage from the magnet. At this time, the connecting column drives the cover sleeve to automatically fall on the top of the cover body to achieve automatic alignment. The cover body is positioned horizontally and vertically by the V-shaped plate and the cover sleeve, ensuring the accuracy of the pressing assembly. Furthermore, the stop on the outside of the cover sleeve cooperates with the protruding structure on the outside of the cover body to apply a stable torque to the cover body during the spinning process. In the vertical direction, the positioning of the cover sleeve and the support of the ring ensure stability during the pressing process, which is convenient for assembling larger covers. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the material receiving state according to an embodiment of the present invention;

[0030] Figure 2 This is a front view structural diagram of the material receiving state according to an embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of the material receiving state in an embodiment of the present invention;

[0032] Figure 4 This is a three-dimensional structural diagram of the spinning state according to an embodiment of the present invention;

[0033] Figure 5 This is a front view schematic diagram of the spun state according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the receiving component in a spinning state according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the cover sleeve according to an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the receiving component receiving state according to an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the spinning assembly according to an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the clamping assembly according to an embodiment of the present invention;

[0039] Figure 11 This is a schematic diagram of the support plate in an embodiment of the present invention.

[0040] The numbers in the diagram represent: 100, the lid body; 200, the material feed plate;

[0041] 1. Base; 11. Side plate A; 12. Cover plate; 13. Magnet; 14. Support platform; 15. Pressure plate; 16. Limiting hole; 17. Limiting plate;

[0042] 2. Receiving assembly; 21. Top plate; 22. V-shaped plate; 221. Side hole; 23. Side plate B; 24. Base frame; 25. Rotating component; 26. Base plate; 27. Sliding shaft A; 271. Pneumatic push rod; 28. Sliding shaft B; 29. ​​Cover sleeve; 291. Mating groove; 292. Inclined surface; 293. Boss; 210. Connecting column; 211. V-groove; 212. Stop;

[0043] 3. Spinning assembly; 31. Spinning head; 311. Slot; 312. V-block; 32. Lifting plate; 33. Motor; 34. Sliding column; 35. Spindle; 36. Spring;

[0044] 4. Clamping assembly; 41. Rotary shaft; 42. Bushing; 43. Clamping rod; 44. Clamping head; 45. Torsion spring; 46. Arc block; 47. Vertical rod; 48. Ball A; 49. Ball B;

[0045] 5. Positioning clamp; 51. Electric push rod;

[0046] 6. Support plate; 61. Ring; 62. Slide rod; 63. Spring;

[0047] 7. Positioning pin; 71. Cut surface; 72. Drive shaft; 73. Motor; 74. Gear transmission box. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0049] The present invention will be further described below with reference to the embodiments.

[0050] Example:

[0051] Please see Figures 1-11 This invention provides a technical solution: a cap precision assembly and pressing mechanism for a cap assembly machine, comprising:

[0052] Base 1 is fixedly installed on the container feeding mechanism of the lid assembly machine, and a side plate A11 is fixedly installed on the top of the base 1;

[0053] The receiving component 2 is rotatably disposed between the side plates A11 on both sides. When the opening of the receiving component 2 is tilted upward, it is aligned with the feeding plate 200 and is used to receive the lid body 100 output by the feeding plate 200. When the receiving component 2 is rotated to the horizontal state, it drives the lid body 100 to be vertically aligned with the container below.

[0054] The spinning assembly 3, located on top of the side plate A11, is used to spin the cover body 100 inside the receiving assembly 2;

[0055] The spinning assembly 3 includes a spinning head 31 for spinning the cover body 100, a lifting plate 32 for driving the spinning head 31 to rise and fall, and a motor 33 for driving the spinning head 31 to rotate. The motor 33 is fixedly mounted on the top of the lifting plate 32. The lifting plate 32 is slidably mounted on the top of the side plate A11 via a sliding column 34. The lifting plate 32 is connected to the lifting drive device of the cover assembly machine.

[0056] It also includes a positioning clamp 5, which is symmetrically arranged inside the base 1. An electric push rod 51 for driving the positioning clamp 5 to move is fixedly arranged on the outside of the base 1, which is used to vertically align the container conveyed by the container feeding mechanism with the spinning head 31.

[0057] It also includes a support plate 6, which is fixed to the outside of a ring 61. The ring 61 is located above the container positioned by the positioning clamp 5 and is coaxial with the container. A sliding rod 62 is symmetrically fixed at the bottom of the support plate 6. The sliding rod 62 is slidably disposed on the outside of the base 1 through a limiting plate 17. A spring 63 is disposed on the outside of the sliding rod 62 between the support plate 6 and the limiting plate 17.

[0058] The receiving component 2 includes a top plate 21, a V-shaped plate 22 fixedly disposed at the bottom of the top plate 21 for positioning the cover body 100, a side plate B23 fixedly disposed on the outer side of the top plate 21, a bottom frame 24 fixedly disposed at the bottom of the side plate B23, a rotating component 25 fixedly disposed on the side of the bottom frame 24 away from the opening of the V-shaped plate 22, the rotating component 25 is rotatably disposed between the side plates A11, a bottom plate 26 is slidably disposed between the bottom frame 24 and the V-shaped plate 22, and a support platform 14 for supporting the bottom frame 24 in a horizontal state is fixedly disposed on the side of the side plates A11 that are close to each other; wherein, the bottom plate 26 slides as the bottom frame 24 rotates, and the bottom of the receiving component 2 can be closed and opened in the two states of receiving material and spinning respectively.

[0059] A sliding shaft A27 is fixedly installed at the bottom of the base plate 26. Pneumatic push rods 271 are rotatably installed at both ends of the sliding shaft A27. The other end of the pneumatic push rod 271 is rotatably installed on the outside of the side plate A11. A limiting hole 16 for sliding installation of the sliding shaft A27 is opened on the inside of the side plate A11.

[0060] The receiving component 2 also includes a cover sleeve 29 that cooperates with the top of the cover body 100. A sliding shaft B28 is fixedly provided on the top of the cover sleeve 29. The sliding shaft B28 is slidably provided on the inner side of the top plate 21. A connecting post 210 is fixedly provided on the top of the sliding shaft B28. The connecting post 210 cooperates with the spinning head 31.

[0061] Among them, the outer side of the connecting column 210 is provided with a V-shaped groove 211, and several V-shaped grooves 211 are arranged in a circular array. The inner side of the spinning head 31 is provided with a slot 311, and a V-shaped block 312 is fixedly arranged on the inner side of the slot 311 corresponding to the V-shaped groove 211. The spinning head 31 is slidably arranged on the outer side of the spindle 35. The spindle 35 is linked with the drive end of the motor 33. The outer side of the spindle 35 is provided with a 36 for applying pressure to the spinning head 31.

[0062] A cover plate 12 is fixedly installed on the outer side of the side plate A11, and a magnet 13 is fixedly installed on the inner side of the cover plate 12 for adsorbing the connecting column 210 in the material receiving state.

[0063] The bottom of the cover 29 is provided with a mating groove 291 that matches the cover body 100. The inner side of the mating groove 291 is provided with a slope 292. The outer side of the cover 29 is fixedly provided with a boss 293. The inner side of the boss 293 is slidably provided with a stop 212. The stop 212 is distributed in a ring array and is used to cooperate with the protruding structure on the outer side of the cover body 100 during spinning.

[0064] It also includes positioning posts 7, which are rotatably disposed on the outside of the V-shaped plate 22. Side holes 221 are provided on both sides of the V-shaped plate 22 corresponding to the positioning posts 7. A cut surface 71 is provided on the outside of the positioning posts 7. A drive shaft 72 is fixedly disposed at one end of each positioning post 7. A motor 73 for driving the positioning posts 7 to rotate is fixedly disposed on the outside of the V-shaped plate 22. The motor 73 drives the positioning posts 7 on both sides to rotate synchronously through the gear transmission box 74. In the receiving state, the cut surface 71 is located at the top of the positioning post 7, and in the spinning state, the cut surface 71 is driven to rotate to the outside of the cover body 100.

[0065] It also includes a clamping assembly 4 for clamping the cover body 100 inside the V-shaped plate 22. The clamping assembly 4 includes a rotating shaft 41 rotatably connected to the outside of the top plate 21 and a vertical rod 47 for driving the rotating shaft 41 to rotate. A bushing 42 is fixedly provided on the outside of the rotating shaft 41. A clamping rod 43 is fixedly provided at the bottom of the bushing 42. A clamping head 44 is fixedly provided at the end of the clamping rod 43 away from the bushing 42. A torsion spring 45 is provided on the top of the bushing 42 outside the rotating shaft 41. An arc-shaped block 46 is fixedly provided on the outside of the bushing 42. The top of the arc-shaped block 46 is an inclined arc surface. The vertical rod 47 is slidably provided on the outside of the top plate 21. A ball A48 is provided at the bottom of the vertical rod 47. The ball A48 is located on the inclined arc surface at the top of the arc-shaped block 46. A ball B49 is provided on the top of the vertical rod 47. The ball B49 is pushed by the pressure plate 15 to slide the vertical rod 47. The pressure plate 15 is fixedly provided on the outside of the side plate A11.

[0066] The principle and advantages of the cap precision assembly and pressing mechanism in a cap assembly machine:

[0067] First, in the receiving state, the pneumatic push rod 271 pushes the sliding shaft A27 to slide along the limiting hole 16, causing the sliding shaft A27 to drive the base plate 26 to slide between the base frame 24 and the V-shaped plate 22. Simultaneously, as the angle of the limiting hole 16 changes, the sliding shaft A27 drives the base frame 24 to rotate via the bottom rotating component 25, facilitating the alignment of the opening of the receiving assembly 2 with the unloading plate 200. Then, each cover body 100 is individually unloaded through the unloading plate 200. The output cover body 100 falls into the interior of the receiving assembly 2 in a downward inclined direction. At this time, the V-shaped plate 22 inside the receiving assembly 2 corrects and positions the cover body 100. Meanwhile, the connecting post 210 at the top of the receiving assembly 2 is aligned with the magnet 13. Under the adsorption effect, the cover sleeve 29 is moved away from the bottom plate 26, preventing the cover sleeve 29 from obstructing the cover body 100 from entering the inner side of the V-shaped plate 22. It is worth noting that during the receiving process, the vertical rod 47 in the pressing assembly 4 is pressed by the pressure plate 15 and is in a downward sliding state, so that the vertical rod 47 is pressed by the ball A48 to rotate the arc block 46, thereby causing the arc block 46 to drive the pressing rod 43 on the outside of the bushing 42 to be located at the opening of the receiving assembly 2. At this time, the torsion spring 45 forms a torque on the bushing 42, preventing the pressing rod 43 from being in a clamped state and obstructing the cover body 100 from entering the inner side of the V-shaped plate 22. Furthermore, the positioning post 7 on the outside of the V-shaped plate 22 positions the cover body 100 to prevent friction with the V-shaped plate 22 during subsequent pressing.

[0068] After receiving the material, the pneumatic push rod 271 drives the bottom frame 24 to rotate downwards to a horizontal position, and simultaneously drives the bottom plate 26 to slide to one side, so that when the receiving component 2 is in a horizontal position, the bottom plate 26 is in an open position relative to the bottom of the receiving component 2. When the receiving component 2 rotates downwards and causes the connecting post 210 to disengage from the magnet 13, the cover 29 automatically falls onto the top of the cover body 100. At this time, the matching groove 291 at the bottom of the cover 29 cooperates with the cover body 100 to vertically position the cover body 100. Furthermore, because the cover body 100 is relatively large, its outer protruding structure is quite prominent. When the cover 29 falls, it causes the outer stop 212 to be positioned on the cover body 100. On the outside of 0, and so that the stop 212 is located between two adjacent protruding structures on the outside of the cover body 100. In order to better match the stop 212 with the protruding structure, the stop 212 is selected as a plate or rod with a V-shaped bottom; and the receiving component 2 drives the vertical rod 47 away from the pressure plate 15, releases the pressure on the vertical rod 47, and releases the pressure on the arc block 46 by the vertical rod 47. At this time, the bushing 42 is rotated by the torque applied by the torsion spring 45, which drives the outer clamping rod 43 to automatically rotate from the opening of the receiving component 2 to the inside, thereby clamping the cover body 100, improving the stability of the cover body 100 after positioning, and preventing the cover body 100 from falling off after the bottom plate 26 is opened.

[0069] It is worth noting that the above-mentioned receiving method has the following advantages:

[0070] Advantage 1: The receiving component 2, which is set at an angle, receives the lid body 100. The receiving component 2 limits the lid body 100 through the V-shaped plate 22. When the receiving component 2 drives the lid body 100 to rotate to a horizontal state, it automatically positions the lid body 100 horizontally. At this time, the lid body 100 is coaxially aligned with the container below to ensure the accuracy of subsequent assembly.

[0071] Secondly, during the receiving process, the bottom plate 26 located at the bottom of the V-shaped plate 22 is in a closed state to ensure that the cover body 100 can smoothly enter the inner side of the V-shaped plate 22. When the V-shaped plate 22 and the cover body 100 rotate to a horizontal state, the bottom plate 26 automatically slides to one side during the rotation to open the bottom of the V-shaped plate 22, so as to facilitate the subsequent pressing and assembly work.

[0072] Thirdly, when adjusting the receiving state, the tilted receiving component 2 drives the connecting column 210 to move closer to the magnet 13, so that the magnet 13 attracts the connecting column 210, and keeps the cover 29 away from the base plate 26, preventing it from affecting the entry of the cover body 100. After receiving the material, when the receiving component is adjusted to a horizontal state, the receiving component 2 drives the connecting column 210 to disengage from the magnet 13. At this time, the connecting column 210 drives the cover 29 to automatically fall on the top of the cover body 100 to achieve automatic alignment, so that the cover body 100 is positioned horizontally and vertically by the V-shaped plate 22 and the cover 29, ensuring the accuracy of the press-in assembly.

[0073] Fourthly, in order to ensure the fitting accuracy between the cover sleeve 29 and the cover body 100, and to enable the connecting post 210 to move the cover sleeve 29 under the attraction of the magnet 13, a ball bearing is provided between the sliding shaft B28 and the top plate 21 for sliding assembly. This reduces the resistance of the sliding shaft B28 in axial and circumferential movement, and achieves a precise fit between the cover sleeve 29 and the cover body 100.

[0074] Fifthly, by setting the clamping rod 43, it can automatically be positioned at the opening of the receiving component 2 when receiving materials, preventing it from affecting the feeding of the cover body 100. During the process of adjusting to a horizontal state after receiving materials, the clamping rod 43 is subjected to torque and automatically clamps the cover body 100 on the inner side of the V-shaped plate 22 to ensure the stability of the cover body 100 after horizontal positioning.

[0075] In this application, the spinning component 3 in the cap assembly machine's precise cap assembly pressing mechanism, when pressing into the cap body 100, drives the lifting plate 32 downward via the lifting drive mechanism of the cap assembly machine. Simultaneously, the motor 33 at the top of the lifting plate 32 drives the spinning head 31 to rotate, causing the spinning head 31 to gradually approach the connecting post 210. When the V-shaped block 312 on the inner side of the spinning head 31 engages with the V-shaped groove 211 on the outer side of the connecting post 210, the spinning head 31, driven by the motor 33, drives the connecting post 210 to rotate, causing the connecting post 210 to move downward. The connecting post 210 drives the cover body 100 to rotate through the cover sleeve 29. When the stop 212 on the outside of the cover sleeve 29 does not contact the protruding structure on the outside of the cover body 100 during circumferential rotation, relative sliding may occur between the cover sleeve 29 and the cover body 100. Since the cover body 100 is always located inside the cover sleeve 29, it does not affect the positioning accuracy of the cover body 100. When the stop 212 falls between two adjacent protruding structures and abuts against the outside of the protruding structure, it begins to drive the cover body 100 to rotate stably.

[0076] It is worth noting that before the spinning head 31 engages with the connecting post 210, the motor 73 drives the positioning posts 7 on both sides of the V-shaped plate 22 to rotate through the gear transmission box 74. This causes the positioning posts 7 to move the cover body 100 downwards and onto the top of the support plate 6. During the descent, the cover sleeve 29 remains attached to the top of the cover body 100 by gravity. The clamping force generated by the clamping rod 43 located on the outside of the cover body 100 is insufficient to push the cover body 100 at the bottom of the cover sleeve 29 horizontally. Consequently, the support plate 6 provides vertical support to the cover body 100 through the ring 61. At this time, the positioning post 7 drives the outer tangent 71 to rotate from a horizontal state to a vertical state, releasing the positioning effect on the cover body 100 and preventing friction between the cover body 100 and the V-shaped plate 22 and positioning posts 7 during the subsequent spinning process, which would affect stability.

[0077] It is worth noting that the above-mentioned spinning method has the following advantages:

[0078] Advantage 1: Before spinning, the lid body 100 is horizontally positioned by the positioning posts 7 on both sides of the V-shaped plate 22. When spinning begins, the lid body 100 is moved downward by rotating the positioning posts 7. Without affecting the positioning accuracy of the lid body 100, the outer surface 71 of the positioning posts 7 is rotated to the outer side of the lid body 100, releasing the horizontal positioning of the lid body 100 and preventing friction between the lid body 100 and the positioning posts 7 during spinning.

[0079] Secondly, the clamping rod 43 located on the outside of the lid body 100 ensures the horizontal stability of the lid body 100 before screwing. Although it is close to the outside of the lid body 100 during screwing, the clamping rod 43 can rotate under the force of the lid body 100, which will not affect the assembly of the lid body 100.

[0080] Thirdly, when the positioning post 7 moves the cover body 100 downward, the cover body 100 can be placed on top of the ring 61 for support. The ring 61 and the cover sleeve 29 achieve precise positioning of the cover body 100. Based on this, the cover body 100 is spun and assembled, ensuring the assembly accuracy of the cover body 100.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cap precision assembly and pressing mechanism for a cap assembly machine, characterized in that, include: The base is fixedly installed on the container feeding mechanism of the lid assembly machine, and a side plate A is fixedly provided on the top of the base; A receiving component is rotatably disposed between two side plates A. When the opening of the receiving component is tilted upward, it is aligned with the feeding plate and is used to receive the lid body output by the feeding plate. When the receiving component is rotated to a horizontal state, it drives the lid body to be vertically aligned with the container below. A spinning assembly, located at the top of side plate A, is used to spin the cover body inside the receiving assembly; The spinning assembly includes a spinning head for spinning the cover body, a lifting plate for driving the spinning head to rise and fall, and a motor for driving the spinning head to rotate. The motor is fixedly mounted on the top of the lifting plate, and the lifting plate is slidably mounted on the top of the side plate A via a sliding column. The lifting plate is connected to the lifting drive device of the cover assembly machine. The receiving component includes a top plate rotatably disposed between the side plates A, a V-shaped plate fixedly disposed at the bottom of the top plate for positioning the cover body, and a bottom plate slidably disposed at the bottom of the V-shaped plate; The bottom plate slides as the top plate rotates, allowing the bottom of the receiving component to be closed and opened in both receiving and spinning states. It also includes a clamping assembly for clamping the cover body inside the V-shaped plate. The clamping assembly includes a rotating shaft rotatably connected to the outside of the top plate and a vertical rod for driving the rotating shaft to rotate. The vertical rod is slidably disposed on the outside of the top plate along the axial direction, and a clamping rod is fixedly disposed on the outside of the rotating shaft. The vertical rod is driven to rotate by the pressure plate, and the shaft is automatically reset by the torque.

2. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 1, characterized in that: It also includes a positioning clamp, which is symmetrically arranged inside the base. The positioning clamp is driven by an external force to clamp the container and is used to vertically align the container conveyed by the container feeding mechanism with the spinning head.

3. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 2, characterized in that: It also includes a support plate, which is fixed to the outside of the ring. The ring is located above the container positioned by the positioning clamp and is coaxial with the container. The ring moves downward under the downward rotational force of the lid body and automatically resets after assembly due to the bottom elastic force.

4. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 1, characterized in that: A sliding shaft A is fixedly installed at the bottom of the base plate. Both ends of the sliding shaft A are slidably installed inside the side plate A. A limiting hole for sliding installation of the sliding shaft A is opened on the inner side of the side plate A. The sliding shaft A is driven by an external force to slide along the limiting hole.

5. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 3, characterized in that: The receiving component also includes a cover sleeve that cooperates with the top of the cover body. A sliding shaft B is fixedly provided on the top of the cover sleeve. The sliding shaft B is slidably disposed on the inner side of the top plate. A connecting post is fixedly provided on the top of the sliding shaft B. The connecting post cooperates with the spinning head. The connecting post rotates and presses down under the drive of the spinning head.

6. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 4, characterized in that: A cover plate is fixedly installed on the outer side of the side plate A, and a magnet is fixedly installed on the inner side of the cover plate for adsorbing the connecting column in the material receiving state.

7. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 5, characterized in that: The bottom of the cover sleeve has a matching groove that matches the cover body, and the inner side of the matching groove has an inclined surface; a boss is fixedly provided on the outer side of the cover sleeve, and a stop is slidably provided on the inner side of the boss. The stop is arranged in a ring array and is used to cooperate with the protruding structure on the outer side of the cover body during spinning.

8. The cap precision assembly and pressing mechanism for a cap assembly machine according to claim 1, characterized in that: It also includes positioning posts, which are rotatably disposed on the outside of the V-shaped plate. Side holes are provided on both sides of the V-shaped plate corresponding to the positioning posts, and the outside of the positioning posts is provided with a cut surface. The positioning post is used to position the cover body inside the V-shaped plate. The cut surface is located at the top of the positioning post in the receiving state, and is driven by external force to rotate to the outside of the cover body in the spinning state.

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