Bottle cap inner plug assembling machine

Abstract

The invention relates to the technical field of bottle cap assembling equipment, and particularly discloses a bottle cap inner plug assembling machine which comprises a disc jig, a plurality of jig mold cores used for containing inner plugs are arranged on the disc jig in a surrounding mode, each jig mold core comprises a fixed outer cylinder and a sliding inner cylinder, and the inner diameter of each sliding inner cylinder is matched with the outer diameter of the lower section of the corresponding inner plug; the disc jig is further provided with a centralizing mechanism used for centralizing the semi-finished cover. A downward pressing mechanism is arranged above the disc jig, and an upward pushing mechanism opposite to the downward pressing mechanism is arranged below the disc jig; the upward pushing mechanism comprises an upward pushing assembly and a plurality of force transmission assemblies, the force transmission assemblies and the jig mold cores are arranged in a one-to-one mode, the output ends of the force transmission assemblies are connected with the sliding inner cylinder, and the upward pushing assembly is located below the force transmission assemblies. By the adoption of the technical scheme, the technical problem that in the prior art, in the process of putting and pressing an inner plug into a semi-finished cover, the inner plug is prone to position deviation or deflection, and the qualified rate of the finished cover is low can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of bottle cap assembly equipment, and in particular to a bottle cap inner plug assembly machine. Background Art

[0002] In the field of wine production, filling packaging is a common packaging method. After filling, the wine bottle needs to be sealed with a bottle cap. The structure of the bottle cap is shown in the following figure. Figure 1 As shown, it generally includes three parts, namely, an outer cover 100, a middle cover 200 and an inner plug 300, which are arranged in sequence from the outside to the inside. In the actual production process, when assembling the various parts of the bottle cap, the middle cover 200 is usually assembled into the outer cover 100 to form a semi-finished cover, and then the inner plug 300 is assembled into the semi-finished cover to obtain a finished cover. In the liquor industry, the outer cover 100 is mostly made of metal to improve the overall aesthetics, the middle cover 200 is made of metal or non-metallic material with certain sealing performance, and the inner plug 300 is often made of non-metallic material with good sealing effect. Therefore, assembling the semi-finished cover and the inner plug 300 completes the assembly of metal parts and non-metallic parts.

[0003] Traditional inner plug assembly methods mostly rely on manual operation, which is not only inefficient, but also prone to human errors, resulting in unstable product quality. In order to improve production efficiency, the industry has introduced a simple mechanical device to complete the pressing operation of the inner plug and the semi-finished cover, that is, to complete the simple assembly of non-metallic parts and metal parts. However, when using the above-mentioned mechanical device, it is still necessary to manually place the inner plug and the semi-finished cover to the corresponding position of the mechanical device, and then press the two together through the mechanical device. The combination of manual and mechanical assembly methods leads to low production efficiency and human errors still exist. In recent years, the development of industrial robot technology has provided new ideas for solving the above problems. Industrial robots have a high degree of precision and can be integrated into automated production lines to realize unmanned operation, thereby improving production efficiency and avoiding human errors.

[0004] For example, the utility model patent with the authorization announcement number CN219787330U discloses an automatic bottle cap assembly machine, which includes an automatic rotating table for transferring inner caps and outer caps to different stations, an outer cap input mechanism for sending outer caps to the automatic rotating table, an inner cap input mechanism for sending inner caps to the automatic rotating table, a multi-axis robot for putting inner caps into outer caps, a pressing mechanism for pressing inner caps into outer caps, and a bottle cap removal mechanism for removing bottle caps from the automatic rotating table. The above-mentioned prior art integrates the pressing mechanism (mechanical device) and the multi-axis robot (industrial robot) in the automated production line to realize unmanned operation, which not only saves manpower and avoids human errors, but also improves the assembly efficiency of bottle caps.

[0005] However, the above-mentioned prior art still has the following problems in practical application: As shown in the appendix Figure 1 As shown, the inner plug 300 includes an upper section 301, a middle section 302, and a lower section 303 arranged in sequence from top to bottom. The outer diameter of the middle section 302 > the outer diameter of the upper section 301 > the outer diameter of the lower section 303. Both the upper section 301 and the middle section 302 are in interference fit with the middle cover 200, and the outer diameter of the lower section 303 is smaller than the inner diameter of the corresponding position of the middle cover 200.

[0006] Therefore, when the multi-axis robot of the prior art places the inner plug 300 into the semi-finished cover, as shown in the appendix Figure 2 As shown, there is a gap between the upper section 301 of the inner plug 300 and the inner wall of the middle cover 200, and the positioning of the inner plug 300 cannot be achieved through the contact fit between the upper section 301 and the inner wall of the middle cover 200. As a result, during the process of placing the inner plug 300 into the semi-finished cover and when the automatic rotating table transfers the inner plug 300 and the semi-finished cover to the next working station, the position of the inner plug 300 is prone to deviation or skew, thereby affecting the quality of the finished cover and reducing the qualified rate of the finished cover.

[0007] Moreover, when the pressing mechanism of the prior art presses the inner plug 300 into the semi-finished cover, due to the gap between the upper section of the inner plug 300 and the inner wall of the middle cover 200, the guiding of the inner plug 300 cannot be achieved through the contact fit between the upper section 301 and the inner wall of the middle cover 200. As a result, the position of the inner plug 300 is prone to deviation or skew during the process of pressing it into the semi-finished cover, thereby further affecting the quality of the finished cover and further reducing the qualified rate of the finished cover. Summary of the Invention

[0008] The present invention aims to provide a bottle cap inner plug assembly machine to solve the technical problem that during the process of placing and pressing the inner plug into the semi-finished cover in the prior art, the inner plug is prone to position deviation or skew, resulting in a relatively low qualified rate of the finished cover.

[0009] To achieve the above object, the present invention adopts the following technical solutions: A bottle cap inner plug assembly machine includes a workbench, an inner plug feeding mechanism, a semi-finished cover feeding line, and a finished cover discharging line connected to the workbench. A disc fixture is arranged on the workbench, and an inner plug feeding station, a semi-finished cover feeding station, an inner plug assembly station, and a finished cover discharging station are sequentially distributed around the disc fixture. A multi-axis robot is arranged at the inner plug feeding station, and handling swing arms are arranged at both the semi-finished cover feeding station and the finished cover discharging station; a number of fixture die cores are arranged on the disc fixture corresponding to each station. The fixture die core includes a fixed outer cylinder and a sliding inner cylinder slidably connected in the fixed outer cylinder. The inner diameter of the sliding inner cylinder matches the outer diameter of the lower section of the inner plug; a straightening mechanism for straightening the semi-finished cover is also arranged on the disc fixture; a pressing mechanism and a pushing mechanism are arranged opposite to each other up and down at the inner plug assembly station. The pushing mechanism includes a pushing component and a number of force transmission components. The force transmission components are arranged one-to-one with the fixture die cores, and the output end of the force transmission component is connected to the sliding inner cylinder. The pushing component is located below the force transmission component.

[0010] The principle and advantages of this solution are as follows: In actual application, the inner plug is conveyed to the inner plug feeding station on the workbench through the inner plug feeding mechanism. The multi-axis robot transports the inner plug at the discharging end of the inner plug feeding mechanism to the fixture die core corresponding to the inner plug feeding station on the disc fixture, so that the lower section of the inner plug is inserted into the sliding inner cylinder, and the middle section of the inner plug is supported on the tops of the fixed outer cylinder and the sliding inner cylinder. The disc fixture rotates, moving the inner plug to the semi-finished cover feeding station. At this time, the semi-finished cover is conveyed to the semi-finished cover feeding station on the workbench through the semi-finished cover feeding line. The handling swing arm at the semi-finished cover feeding station transports the semi-finished cover at the discharging end of the semi-finished cover feeding line onto the inner plug, so that the semi-finished cover covers the inner plug and the semi-finished cover is supported on the disc fixture. Then, the semi-finished cover is straightened by the straightening mechanism so that the semi-finished cover and the inner plug are coaxial. The disc fixture rotates again, moving the inner plug and the semi-finished cover to the inner plug assembly station. At this time, the pushing component of the upward pushing mechanism is directly below the force transmission component connected to the sliding inner cylinder with the inner plug placed therein. First, the semi-finished cover is pressed down and fixed on the disc fixture by the downward pressing mechanism, and then the force transmission component is pushed upward by the pushing component. The force transmission component drives the sliding inner cylinder and the inner plug placed in the sliding inner cylinder to move upward, so that the inner plug is assembled into the semi-finished cover to obtain the finished cover. The downward pressing mechanism and the upward pushing mechanism reset, driving the sliding inner cylinder to reset. The disc fixture continues to rotate, moving the finished cover to the finished cover discharging station. The handling swing arm at the finished cover discharging station transports the finished cover on the disc fixture to the finished cover discharging line, and the finished cover is sent out from the finished cover discharging station on the workbench through the finished cover discharging line.

[0011] In summary, this solution abandons the inner plug assembly method in the prior art of placing the semi-finished cover upside down and pressing the inner plug into the semi-finished cover upside down. Instead, it adopts the inner plug assembly method of first placing the inner plug upright in the fixture die core, then placing the semi-finished cover upright on the inner plug, and finally pushing the inner plug upward into the semi-finished cover. This inner plug assembly method itself is different from the inner plug assembly method in the prior art. The structural setting of this solution can not only achieve the above assembly method, but also solve the technical problems existing in the prior art and achieve the expected technical effects, which are specifically described as follows: 1. In this solution, the multi-axis robot places the inner plug into the sliding inner cylinder of the fixture die core. Since the inner diameter of the sliding inner cylinder matches the outer diameter of the lower section of the inner plug, the inner plug can be accurately positioned through the sliding inner cylinder. After the semi-finished cover is placed on the inner plug by the handling swing arm, the semi-finished cover is straightened by the straightening mechanism, and the semi-finished cover can be accurately positioned. In this way, by positioning the inner plug and the semi-finished cover separately, the positioning between the inner plug and the semi-finished cover can be effectively realized, thereby effectively ensuring the assembly accuracy of the inner plug and the semi-finished cover, being beneficial to improving the quality of the finished cover and reducing the defective rate of the finished cover.

[0012] 2. In this solution, a straightening mechanism is set on the disc fixture. It can not only straighten the semi-finished cover through the straightening mechanism to achieve the accurate positioning of the semi-finished cover, but also fix and limit the semi-finished cover through the straightening mechanism during the process of the disc fixture rotating to move the inner plug and the semi-finished cover to the inner plug assembly station, avoiding the displacement of the semi-finished cover during the rotation of the disc fixture, ensuring the relative position accuracy of the inner plug and the semi-finished cover, further ensuring the assembly accuracy of the inner plug and the semi-finished cover, thereby further improving the quality of the finished cover and reducing the defective rate of the finished cover.

[0013] 3. Before pushing the inner plug into the semi-finished cover in this solution, the semi-finished cover is first pressed down and fixed on the disc fixture by the pressing mechanism to limit the position of the semi-finished cover in the vertical direction; at this time, the straightening mechanism maintains the position limit of the semi-finished cover, that is, the straightening mechanism limits the position of the semi-finished cover in the horizontal direction; in this way, the movement of the semi-finished cover in both the horizontal and vertical directions is restricted, which can ensure the position stability of the semi-finished cover to the greatest extent during the process of pushing the inner plug into the semi-finished cover, thereby ensuring the assembly accuracy of the inner plug and the semi-finished cover to the greatest extent.

[0014] 4. In this solution, the upward pushing mechanism is set as an upper and lower split structure. A number of force transmission components located above are connected to the sliding inner cylinder of the fixture die core one by one. By pushing the force transmission component directly above it by the upward pushing component located below, the inner plug placed in the corresponding sliding inner cylinder can be pushed upward into the semi-finished cover to complete the assembly of the inner plug and the semi-finished cover; the split structure has enough space to increase the contact area between the force transmission component and the upward pushing component. Compared with the method of directly pushing the sliding inner cylinder with a smaller contact area through the upward pushing mechanism, it can improve the reliability of the upward pushing action and ensure the assembly accuracy.

[0015] 5. During the process of pushing the inner plug into the semi-finished cover by the upward pushing mechanism in this solution, the fixed outer cylinder of the fixture die core guides the sliding inner cylinder, and the sliding inner cylinder always limits the position of the inner plug, which can effectively avoid the position deviation or skew of the inner plug during the process of pushing it into the semi-finished cover, thereby further improving the quality of the finished cover and reducing the defective rate of the finished cover.

[0016] Preferably, as an improvement, the force transmission component includes a guide cylinder fixed on the disc fixture and a force transmission rod slidably inserted into the guide cylinder. The top of the force transmission rod is connected to the sliding inner cylinder, and a force transmission block is arranged at the bottom of the force transmission rod; a limiting ring is fixedly sleeved on the force transmission rod, and the limiting ring abuts against the top of the guide cylinder; a return spring is slidably sleeved on the force transmission rod, and the return spring abuts between the guide cylinder and the force transmission block.

[0017] Beneficial effects: After the inner plug and the semi-finished cover are assembled in this solution, the upper pushing assembly resets. The force transmission block no longer receives the upward pushing force from the upper pushing assembly. Under the action of the gravity of the force transmission block and the force transmission rod itself and the elastic force of the return spring, the force transmission rod and the force transmission block reset, driving the sliding inner cylinder of the fixture die core to reset, so as to carry out the subsequent inner plug assembly work. By contacting the output end of the upper pushing assembly through the force transmission block, compared with directly contacting the output end of the upper pushing assembly through the force transmission rod, the contact area between the force transmission assembly and the upper pushing assembly can be effectively increased, thereby improving the reliability of the upward pushing action. The guiding cylinder can not only provide an installation position for the force transmission rod, but also guide the force transmission rod during the process of pushing the inner plug upward, ensuring that the inner plug receives a vertically upward force from the force transmission rod, thereby ensuring the assembly accuracy of the inner plug and the semi-finished cover. In addition, the setting of the return spring can also realize the elastic contact between the upper pushing assembly and the force transmission assembly, avoid the structural damage of the upper pushing mechanism caused by hard contact, and is beneficial to extending the service life.

[0018] Preferably, as an improvement, the upper pushing assembly includes an upper pushing cylinder fixed on the workbench, and an upper pushing block is arranged on the output shaft of the upper pushing cylinder. The upper pushing block is located directly below the force transmission block.

[0019] Beneficial effects: In this solution, the contact between the upper pushing block and the force transmission block realizes the contact between the output end of the upper pushing assembly and the input end of the force transmission assembly. Compared with the way of directly contacting the force transmission block through the output shaft of the upper pushing cylinder, the contact area between the upper pushing assembly and the force transmission assembly can be further increased, thereby further improving the reliability of the upward pushing action.

[0020] Preferably, as an improvement, the downward pressing mechanism includes a downward pressing bracket arranged on the workbench, a downward pressing cylinder is arranged on the downward pressing bracket, and a downward pressing block is arranged on the output shaft of the downward pressing cylinder. The downward pressing block is located directly above the fixture die core.

[0021] Beneficial effects: In this solution, the downward pressing cylinder drives the downward pressing block to move downward, so that the downward pressing block contacts the top of the semi-finished cover and presses and fixes the semi-finished cover on the disc fixture, which can effectively realize the position limitation of the semi-finished cover in the vertical direction and ensure the assembly accuracy of the inner plug and the semi-finished cover.

[0022] Preferably, as an improvement, the straightening mechanism includes a straightening bracket and a plurality of straightening jaws arranged on the straightening bracket. The straightening jaws are arranged in one-to-one correspondence with the fixture die core.

[0023] Beneficial effects: In this solution, a plurality of straightening jaws arranged in one-to-one correspondence with the fixture die core are used to straighten the semi-finished cover and limit the position in the horizontal direction. The structure is simple and the work is reliable.

[0024] Preferably, as an improvement, the handling swing arm includes a rotating component disposed on the workbench. An elevating component is provided at the output end of the rotating component, and a plurality of groups of handling grippers that are opposite to each other in pairs are provided at the output end of the elevating component.

[0025] Beneficial effects: A group of handling grippers located above the discharge end of the semi-finished cover loading line grabs the semi-finished cover. The elevating component drives the semi-finished cover to move upward to a preset height. Subsequently, the rotating component drives the semi-finished cover to rotate above the tooling die core corresponding to the semi-finished cover loading station. The elevating component drives the semi-finished cover to move downward until the bottom of the semi-finished cover contacts the disk fixture. At this time, the handling grippers release the semi-finished cover, enabling the semi-finished cover to be placed on the inner plug, completing the handling of the semi-finished cover.

[0026] Similarly, a group of handling grippers located above the tooling die core corresponding to the finished cover unloading station grabs the finished cover. The elevating component drives the finished cover to move upward to a preset height. Subsequently, the rotating component drives the finished cover to rotate above the feeding end of the finished cover unloading line. The elevating component drives the finished cover to move downward until the bottom of the finished cover contacts the finished cover unloading line. At this time, the handling grippers release the finished cover, enabling the finished cover to be placed on the finished cover unloading line, completing the handling of the finished cover.

[0027] In this solution, a plurality of groups of handling grippers that are opposite to each other in pairs are provided at the output end of the elevating component, which can realize the simultaneous grasping and placement of two opposite groups of handling grippers for the semi-finished cover or the finished cover. Compared with the method of grasping and placing the semi-finished cover or the finished cover by a single group of handling grippers, the handling waiting time between two groups of semi-finished covers or finished covers can be reduced, which is beneficial to improving the handling efficiency of the semi-finished cover and the finished cover, thereby improving the overall efficiency of the inner plug assembly.

[0028] Preferably, as an improvement, the rotating component includes a rotating motor and a support plate disposed on the output shaft of the rotating motor. A plurality of support rods are provided on the top of the support plate; the elevating component includes a cylinder mounting plate provided on the top of the support rods. An elevating cylinder is provided on the cylinder mounting plate, and a gripper mounting plate is provided on the output shaft of the elevating cylinder. The handling grippers are provided at the bottom of the gripper mounting plate.

[0029] Beneficial effects: In this solution, the rotating motor drives the support plate and the support rods to rotate, thereby driving the elevating component together with the handling grippers to rotate; the elevating cylinder drives the gripper mounting plate to move up and down, thereby driving the handling grippers to move up and down; the overall structure is simple, the movement is reliable, and it is convenient for installation and maintenance.

[0030] Preferably, as an improvement, the inner plug loading mechanism includes a vibrating bowl and a loading track communicated with the discharge port of the vibrating bowl; the disk fixture includes a driving motor and a rotating disk disposed on the output shaft of the driving motor; the multi-axis robot includes a multi-axis robotic arm and an inner plug gripper provided at the output end of the multi-axis robotic arm.

[0031] Beneficial effects: In this solution, the inner plug is vibrated and discharged by a vibrating disk, and then the inner plug output by the vibrating disk is conveyed to the inner plug feeding station through a feeding track, realizing the feeding of the inner plug. By driving the rotating disk to rotate with a driving motor, the movement of the fixture die core on the rotating disk is realized, so as to move the inner plug (and the semi-finished cover on the inner plug) in the fixture die core to the next station, realizing the conversion of stations. By driving the movement of the inner plug jaw with a multi-axis robotic arm, the grasping and placement of the inner plug by the inner plug jaw are realized, realizing the handling of the inner plug. The overall structure is simple and the actions are reliable.

[0032] Preferably, as an improvement, the fixed outer cylinder is detachably connected to the rotating disk, and the sliding inner cylinder is detachably connected to the force transmission rod.

[0033] Beneficial effects: In this solution, the fixed outer cylinder is detachably connected to the rotating disk, and the sliding inner cylinder is detachably connected to the force transmission rod, that is, the overall detachable connection of the fixture die core is realized, so as to conveniently replace the fixture die core with a corresponding size according to the size of the assembled inner plug, which is applicable to the assembly of inner plugs of various sizes and has better applicability.

[0034] Preferably, as an improvement, a plurality of positioning plates are arranged on the rotating disk corresponding to each station, positioning holes are opened on the positioning plates, and the fixture die core is arranged in the positioning holes.

[0035] Beneficial effects: In this solution, positioning plates are arranged on the rotating disk, and positioning holes are opened on the positioning plates. When it is necessary to replace the fixture die core with a corresponding size according to the size of the assembled inner plug, the new fixture die core can be installed into the positioning holes, realizing the rapid positioning of the fixture die core on the rotating disk, which is beneficial to improving the installation convenience and accuracy of the fixture die core. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of the wine bottle cap assembled by the present invention.

[0037] Figure 2 It is a schematic structural diagram of the wine bottle cap during the assembly process of the present invention.

[0038] Figure 3 It is a schematic overall structural diagram of an embodiment of the present invention.

[0039] Figure 4 It is Figure 3 the top view of

[0040] Figure 5 It is a schematic structural diagram of the disk fixture, multi-axis robot and pressing mechanism in an embodiment of the present invention.

[0041] Figure 6 It is Figure 5 the top view from another perspective.

[0042] Figure 7 It is a schematic diagram of the structure of the transport swing arm in an embodiment of the present invention.

[0043] Figure 8 for Figure 7 Front view of .

[0044] Figure 9 Schematic diagram of the structure of the righting mechanism in an embodiment of the present invention.

[0045] Figure 10 It is a left view of the pressing mechanism and the pushing mechanism in the embodiment of the present invention.

[0046] Figure 11 It is a front view of the pressing mechanism and the pushing mechanism in the embodiment of the present invention.

[0047] Figure 12 for Figure 10 and Figure 11 Schematic diagram of the structure of the middle push-up assembly.

[0048] Figure 13 for Figure 10 and Figure 11 Schematic diagram of the structure of the central force transmission component.

[0049] Figure 14 for Figure 13 Front view of .

[0050] Figure 15 for Figure 14 Cross-sectional view of section AA. DETAILED DESCRIPTION

[0051] The following is further described in detail through specific implementation methods: The reference numerals in the accompanying drawings of the specification include: outer cover 100, middle cover 200, inner plug 300, upper section 301, middle section 302, lower section 303; workbench 10, inner plug feeding mechanism 11, vibrating bowl 111, feeding track 112, semi-finished cover feeding line 12, finished cover discharging line 13, limit seat 14, circular fixture 20, rotating disc 21, fixture die core 22, fixed outer cylinder 221, sliding inner cylinder 222, connecting rod 223, connecting seat 23, positioning plate 24, multi-axis robot 30, multi-axis robotic arm 31, support frame 311, horizontal linear module 312, lifting linear module 313, inner plug gripper 32, handling swing arm 40, rotating assembly 41, rotating bracket 411, rotating motor 412, support plate 413, support rod 414, lifting assembly 42, cylinder mounting plate 421, lifting cylinder 422, gripper mounting plate 423, handling gripper 43, pressing mechanism 50, pressing bracket 51, pressing cylinder 52, lower pressing plate 53, pressing block 54, upward pushing mechanism 60, upward pushing assembly 61, mounting seat 611, upward pushing cylinder 612, upward pushing block 613, force transmission assembly 62, guiding cylinder 621, force transmission rod 622, force transmission block 623, limiting ring 624, return spring 625, centering mechanism 70, centering bracket 71, centering gripper 72.

[0052] The embodiment is basically as shown in the attached Figures 3 to 15 drawings: This embodiment provides a cap inner plug assembling machine for assembling the cap shown in the attached Figure 1 drawings. Specifically, the inner plug 300 is assembled into the semi-finished cap composed of the outer cover 100 and the middle cover 200 to obtain the finished cap.

[0053] A cap inner plug assembling machine, as shown in the attached Figure 3 and Figure 4 drawings, includes a workbench 10 and an inner plug feeding mechanism 11, a semi-finished cover feeding line 12, and a finished cover discharging line 13 connected to the workbench 10. A circular fixture 20 is arranged at the middle position on the top of the workbench 10. Inner plug 300 feeding stations, semi-finished cover feeding stations, inner plug 300 assembling stations, and finished cover discharging stations are evenly distributed around the circular fixture 20 on the workbench 10. The discharging end of the inner plug feeding mechanism 11 is aligned with the inner plug 300 feeding station, the discharging end of the semi-finished cover feeding line 12 is aligned with the semi-finished cover feeding station, and the feeding end of the finished cover discharging line 13 is aligned with the finished cover discharging station. A multi-axis robot 30 is arranged at the inner plug 300 feeding station, handling swing arms 40 are arranged at both the semi-finished cover feeding station and the finished cover discharging station, and a pressing mechanism 50 and an upward pushing mechanism 60 are arranged opposite to each other vertically at the inner plug 300 assembling station; a centering mechanism 70 is arranged on the top of the circular fixture 20.

[0054] The inner plug feeding mechanism 11 includes a vibrating disk 111 and a feeding track 112. The feeding end of the feeding track 112 is communicated with the discharging port of the vibrating disk 111, and the discharging end of the feeding track 112 is aligned with the feeding station of the inner plug 300. The vibrating disk 111 adopts the prior art, and its structure and working principle will not be described in detail in this embodiment. The semi-finished cover feeding line 12 and the finished cover discharging line 13 both adopt the chain plate conveyors of the prior art. Two limit seats 14 are fixedly connected to each chain plate of the chain plate conveyor by bolts. The semi-finished covers are placed on the limit seats 14 of the semi-finished cover feeding line 12 for conveying, and the finished covers are placed on the limit seats 14 of the finished cover discharging line 13 for conveying.

[0055] Combined with the attached Figure 5 and Figure 6 As shown, the disk fixture 20 includes a driving motor (not shown in the figure) and a horizontally arranged rotating disk 21. The rotating disk 21 is coaxially and fixedly connected to the output shaft of the driving motor through a coupling. In other embodiments, a cam divider is connected between the driving motor and the rotating disk 21. Specifically, the output shaft of the driving motor is coaxially and fixedly connected to the input shaft of the cam divider through a coupling, and the output shaft of the cam divider is coaxially and fixedly connected to the rotating disk 21 through a flange; the cam divider can convert the continuous rotational motion into an accurate indexing motion, so that the rotating disk 21 realizes the station conversion every time it rotates.

[0056] Four groups of fixture die cores 22 are evenly arranged around the axis on the rotating disk 21. The four groups of fixture die cores 22 correspond to the above four stations one by one, and each group of fixture die cores 22 includes two fixture die cores 22. The fixture die core 22 is detachably connected to the rotating disk 21. Specifically, a connecting seat 23 is sleeved on the fixture die core 22, and the fixture die core 22 is fixedly connected to the connecting seat 23 by welding or interference fit; the connecting seat 23 is fixedly connected to the top of the rotating disk 21 by bolts. In this embodiment, a positioning plate 24 is also arranged at the position corresponding to each group of fixture die cores 22 on the rotating disk 21. The positioning plate 24 is fixedly connected to the top of the rotating disk 21 by bolts; positioning holes are opened at the positions corresponding to the fixture die cores 22 on the positioning plate 24. The size of the positioning holes is equal to the size of the connecting seat 23, and the connecting seat 23 is inserted into the positioning holes, which can realize the quick positioning of the connecting seat 23 on the rotating disk 21, so as to realize the quick positioning of the fixture die core 22 on the rotating disk 21.

[0057] The multi-axis robot 30 includes a multi-axis robotic arm 31 and an inner plug gripper 32 disposed at the output end of the multi-axis robotic arm 31. The multi-axis robotic arm 31 includes a support frame 311, a horizontal linear module 312, and a lifting linear module 313. The support frame 311 is fixedly connected to the ground by bolts. The horizontal linear module 312 is fixedly connected to the support frame 311 by bolts. The lifting linear module 313 is fixedly connected to the output end of the horizontal linear module 312 by bolts. The inner plug gripper 32 is fixedly connected to the output end of the lifting linear module 313 by bolts. The horizontal main module drives the inner plug gripper 32 to move horizontally between the discharge end of the loading track 112 and the rotating disk 21, and the lifting linear module 313 drives the inner plug gripper 32 to move up and down. Both the horizontal linear module 312 and the lifting linear module 313 adopt existing technologies, as long as they can drive the inner plug gripper 32 to move horizontally and up and down, and no specific limitations are made in this embodiment.

[0058] Combined with the attached Figure 7 and Figure 8 As shown, the handling swing arm 40 includes a rotating assembly 41 disposed on the workbench 10. An output end of the rotating assembly 41 is provided with a lifting assembly 42, and an output end of the lifting assembly 42 is provided with several groups of handling grippers 43 that are opposite to each other in pairs. In this embodiment, the output end of the lifting assembly 42 is provided with two groups of handling grippers 43 that are opposite to each other, and each group of handling grippers 43 includes two handling grippers 43. Combined with the attached Figure 3 As shown, for the handling swing arm 40 at the semi-finished product cover loading station, one group of handling grippers 43 is located above the discharge end of the semi-finished product cover loading line 12, and the other group of handling grippers 43 is located above the fixture die core 22 corresponding to the semi-finished product cover loading station; for the handling grippers 43 at the finished product cover unloading station, one group of handling grippers 43 is located above the fixture die core 22 corresponding to the finished product cover unloading station, and the other group of handling grippers 43 is located above the feed end of the finished product cover unloading line 13.

[0059] Specifically, the rotating assembly 41 includes a rotating bracket 411, a rotating motor 412, a support plate 413, and several support rods 414. The rotating bracket 411 is fixedly connected to the top of the workbench 10 by bolts. The rotating motor 412 is fixedly connected to the rotating bracket 411 vertically by bolts. The support plate 413 is coaxially fixedly connected to the output shaft of the rotating motor 412 through a coupling. The several support rods 414 are evenly and vertically fixedly connected to the top of the support plate 413 by bolts. In other embodiments, a cam divider is connected between the rotating motor 412 and the support plate 413. Specifically, the output shaft of the rotating motor 412 is coaxially fixedly connected to the input shaft of the cam divider through a coupling, and the output shaft of the cam divider is coaxially fixedly connected to the support plate 413 through a flange; the cam divider can convert continuous rotational motion into precise indexing motion, so that the support plate 413 rotates once to achieve the position exchange of the two groups of handling grippers 43.

[0060] The lifting assembly 42 includes a cylinder mounting plate 421, a lifting cylinder 422, and a jaw mounting plate 423. The cylinder mounting plate 421 is fixedly connected to the tops of a number of support rods 414 by bolts. The lifting cylinder 422 is vertically and fixedly connected to the top of the cylinder mounting plate 421 by bolts. The output shaft of the lifting cylinder 422 passes downward through the cylinder mounting plate 421. The jaw mounting plate 423 is fixedly connected to the output shaft of the lifting cylinder 422 by bolts. Two sets of handling jaws 43 are fixedly connected to the bottom of the jaw mounting plate 423 by bolts. The jaw mounting plate 423 is located between the support plate 413 and the cylinder mounting plate 421. The jaw mounting plate 423 is provided with through holes corresponding to the positions of the support rods 414, and the support rods 414 pass through the through holes of the jaw mounting plate 423. The jaw mounting plate 423 and the support rods 414 are slidably connected through linear bearings.

[0061] Combined with the attached Figure 3 and Figure 9 As shown, the aligning mechanism 70 includes an aligning bracket 71 and a number of aligning jaws 72 provided on the aligning bracket 71. The aligning jaws 72 are arranged one-to-one with the fixture die cores 22. The aligning bracket 71 is fixedly connected to the top of the rotating disc 21 by bolts. The aligning jaws 72 are fixedly connected to the aligning bracket 71 by bolts.

[0062] In this embodiment, the inner plug jaws 32, the handling jaws 43, and the aligning jaws 72 all adopt pneumatic jaws. The pneumatic jaws are a very mature existing technology, and their structures and working principles will not be elaborated in this embodiment.

[0063] Combined with the attached Figure 3 、 Figure 5 and Figure 10 As shown, the pressing mechanism 50 includes a pressing bracket 51, a pressing cylinder 52, a pressing plate 53, and two pressing blocks 54. The pressing bracket 51 is fixedly connected to the top of the workbench 10 by bolts. The pressing cylinder 52 is vertically and fixedly connected to the pressing bracket 51 by bolts, and the output shaft of the pressing cylinder 52 faces downward. The pressing plate 53 is fixedly connected to the bottom end of the output shaft of the pressing cylinder 52 by bolts. Two pressing blocks 54 are fixedly connected to the bottom of the pressing plate 53 by bolts, and the two pressing blocks 54 are located directly above the two fixture die cores 22 corresponding to the inner plug 300 assembly station.

[0064] Combined with the attached Figure 5 and Figure 11 As shown, the upward pushing mechanism 60 includes an upward pushing assembly 61 and four sets of force transmission components 62. Each set of force transmission components 62 includes two force transmission components 62. The force transmission components 62 are arranged one-to-one with the fixture die cores 22. The upward pushing assembly 61 is located directly below the two fixture die cores 22 corresponding to the inner plug 300 assembly station, that is, the upward pushing assembly 61 is located directly below the two force transmission components 62 corresponding to the inner plug 300 assembly station. As shown in the attachedFigure 12 As shown in the figure, the upward pushing component 61 includes a mounting base 611, two upward pushing cylinders 612 and two upward pushing blocks 613. The mounting base 611 is fixedly connected to the bottom of the tabletop of the workbench 10 by bolts. The two upward pushing cylinders 612 are vertically and fixedly connected to the mounting base 611 by bolts. The output shaft of the upward pushing cylinder 612 extends upward out of the mounting base 611. The upward pushing block 613 is fixedly connected to the top end of the output shaft of the upward pushing cylinder 612 by bolts. A through hole is opened in the tabletop of the workbench 10 corresponding to the position of the upward pushing block 613, and the upward pushing block 613 is located in the through hole.

[0065] Combined with the attached Figure 13 、 Figure 14 and Figure 15 As shown in the figure, a connecting plate is vertically and fixedly connected to the bottom of the positioning plate 24 by bolts, and the connecting plate passes downward through the rotating disc 21. The fixture die core 22 includes a fixed outer cylinder 221 and a sliding inner cylinder 222 slidably connected in the fixed outer cylinder 221. The connecting seat 23 is fixedly sleeved on the fixed outer cylinder 221, that is, the fixed outer cylinder 221 is detachably connected to the rotating disc 21. The inner diameter of the sliding inner cylinder 222 is the same as the outer diameter of the lower section of the inner plug 300.

[0066] The force transmission component 62 includes a guide cylinder 621 fixedly connected to the connecting plate by bolts. A force transmission rod 622 is slidably inserted into the guide cylinder 621. Both the top and bottom of the force transmission rod 622 are located outside the guide cylinder 621. A force transmission block 623 is fixedly connected to the bottom of the force transmission rod 622 by bolts. The force transmission block 623 corresponding to the assembly station of the inner plug 300 is located directly above the upward pushing block 613. A limiting ring 624 is fixedly sleeved on the force transmission rod 622. The limiting ring 624 is fixedly connected to the force transmission rod 622 by welding or interference fit. The bottom of the limiting ring 624 abuts against the top of the guide cylinder 621. A return spring 625 is slidably sleeved on the force transmission rod 622, and the return spring 625 abuts between the guide cylinder 621 and the force transmission block 623.

[0067] The top of the force transmission rod 622 is detachably connected to the bottom of the sliding inner cylinder 222. Specifically, a connection hole is opened at the top of the force transmission rod 622. The bottom of the sliding inner cylinder 222 is closed, and a connecting rod 223 is integrally formed or welded and fixed at the position corresponding to the connection hole at the bottom of the sliding inner cylinder 222. The connecting rod 223 is inserted into the connection hole and has an interference fit with the connection hole.

[0068] This embodiment also provides a method for assembling the inner plug of a bottle cap, including the following steps: S1. Feeding the inner plug 300: The inner plug feeding mechanism 11 transports the inner plug 300 to the inner plug 300 feeding station. The multi-axis robot 30 transports the inner plug 300 at the discharge end of the inner plug feeding mechanism 11 into the fixture die core 22 corresponding to the inner plug 300 feeding station, and the disc fixture 20 moves the inner plug 300 to the semi-finished cap feeding station.

[0069] S11. Feeding of the inner plug 300: The vibrating disk 111 conveys the inner plug 300 therein to the discharge port through vibration. The inner plug 300 enters the feeding track 112 through the discharge port of the vibrating disk 111 and is conveyed along the feeding track 112 to the inner plug 300 feeding station.

[0070] S12. Handling of the inner plug 300: The horizontal linear module 312 of the multi-axis robotic arm 31 drives the inner plug gripper 32 to move horizontally above the discharge end of the feeding track 112. Then the lifting linear module 313 drives the inner plug gripper 32 to move downward until the inner plug gripper 32 contacts and grabs the inner plug 300 at the discharge end of the feeding track 112. The lifting linear module 313 drives the inner plug gripper 32 to move upward to reset. Then the horizontal linear module 312 drives the inner plug gripper 32 to move horizontally above the fixture die core 22 corresponding to the inner plug 300 feeding station. The lifting linear module 313 drives the inner plug gripper 32 to move downward and places the inner plug 300 into the corresponding fixture die core 22, so that the lower section of the inner plug 300 is inserted into the sliding inner cylinder 222, and the middle section 302 of the inner plug 300 is supported on the tops of the fixed outer cylinder 221 and the sliding inner cylinder 222. Then the lifting linear module 313 drives the inner plug gripper 32 to move upward to reset.

[0071] S13. Movement of the inner plug 300: The driving motor drives the rotating disk 21 to rotate counterclockwise by 90 degrees (based on Figure 4 the perspective), so that the inner plug 300 moves from the inner plug 300 feeding station to the semi-finished cover feeding station.

[0072] S2. Feeding of the semi-finished cover: The semi-finished cover feeding line 12 conveys the semi-finished cover to the semi-finished cover feeding station. The handling swing arm 40 at the semi-finished cover feeding station transports the semi-finished cover at the discharge end of the semi-finished cover feeding line 12 onto the inner plug 300. The straightening mechanism 70 straightens the semi-finished cover, and the disk fixture 20 moves the inner plug 300 and the semi-finished cover to the inner plug 300 assembly station.

[0073] S21. Conveying of the semi-finished cover: The semi-finished cover is buckled on the limit seat 14 of the semi-finished cover feeding line 12 and is conveyed to the semi-finished cover feeding station by the semi-finished cover feeding line 12.

[0074] S22. Semi-finished cover handling: The lifting assembly 42 drives the handling gripper 43 to move downward until the handling gripper 43 contacts the semi-finished cover at the discharge end of the semi-finished cover feeding line 12 and grabs it. Then, the lifting assembly 42 drives the handling gripper 43 to move upward and reset. The rotating assembly 41 drives the lifting assembly 42 to rotate 180 degrees, causing the positions of the two groups of handling grippers 43 to be interchanged. At this time, the semi-finished cover is located above the fixture die core 22 at the corresponding semi-finished cover feeding station, that is, the semi-finished cover is located above the inner plug 300. The lifting assembly 42 drives the handling gripper 43 to move downward until the handling gripper 43 places the semi-finished cover on the inner plug 300. Subsequently, the lifting assembly 42 drives the handling gripper 43 to move upward and reset.

[0075] Specifically, the lifting cylinder 422 drives the gripper mounting plate 423 to move downward, thereby driving the handling gripper 43 to move downward until the handling gripper 43 contacts the semi-finished cover at the discharge end of the semi-finished cover feeding line 12 and grabs it. Then, the lifting cylinder 422 drives the gripper mounting plate 423 to move upward and reset, thereby driving the handling gripper 43 to move upward and reset. The rotating motor 412 drives the support plate 413 to rotate 180 degrees, thereby driving the cylinder mounting plate 421 to rotate 180 degrees through the support rod 414, causing the lifting cylinder 422 mounted on the cylinder mounting plate 421 and the gripper mounting plate 423 connected to the lifting cylinder 422 to both rotate 180 degrees. Then, the two groups of handling grippers 43 connected to the gripper mounting plate 423 interchange positions, and the handling gripper 43 holding the semi-finished cover moves above the fixture die core 22 at the corresponding semi-finished cover feeding station, that is, the semi-finished cover moves above the inner plug 300. The lifting cylinder 422 drives the gripper mounting plate 423 to move downward, thereby driving the handling gripper 43 to move downward until the handling gripper 43 places the semi-finished cover on the inner plug 300. Subsequently, the lifting cylinder 422 drives the gripper mounting plate 423 to move upward and reset, thereby driving the handling gripper 43 to move upward and reset.

[0076] S23. Semi-finished cover straightening: All the straightening grippers 72 of the straightening mechanism 70 are in the open state. After the handling swing arm 40 at the semi-finished cover feeding station transports the semi-finished cover to the inner plug 300, the semi-finished cover is located between the two open fingers of the corresponding straightening gripper 72. The corresponding straightening gripper 72 closes to clamp and straighten the semi-finished cover.

[0077] S24. Movement of the inner plug 300 and the semi-finished cover: The drive motor drives the rotating disc 21 to rotate counterclockwise by 90 degrees (based on Figure 4 the perspective), causing the inner plug 300 and the semi-finished cover to move from the semi-finished cover feeding station to the inner plug 300 assembly station.

[0078] S3. Assembly of the inner plug 300: The pressing-down mechanism 50 presses the semi-finished cover downward and fixes it firmly on the disk fixture 20. The upward-pushing mechanism 60 pushes the inner plug 300 upward into the semi-finished cover to obtain the finished cover, and the disk fixture 20 moves the finished cover to the finished-cover discharging station.

[0079] S31. Pressing down the semi-finished cover: The pressing-down air cylinder 52 drives the pressing-down plate 53 to move downward, thereby driving the pressing-down block 54 to move downward until the bottom of the pressing-down block 54 contacts the top of the semi-finished cover and presses and fixes the semi-finished cover on the rotating disk 21.

[0080] S32. Pushing up the inner plug 300: The upward-pushing assembly 61 pushes the force-transmitting assembly 62 directly above it upward. The force-transmitting assembly 62 drives the sliding inner cylinder 222 of the fixture die core 22 to move upward, thereby driving the inner plug 300 to move upward into the semi-finished cover to obtain the finished cover. Subsequently, the upward-pushing assembly 61 resets, the force-transmitting assembly 62 and the sliding inner cylinder 222 reset, and the pressing-down mechanism 50 resets.

[0081] Specifically, the upward-pushing air cylinder 612 drives the upward-pushing block 613 to move upward. After the upward-pushing block 613 moves a certain distance, it contacts the force-transmitting block 623 and pushes the force-transmitting block 623 upward, thereby driving the force-transmitting rod 622, the sliding inner cylinder 222 connected to the force-transmitting rod 622, and the inner plug 300 inserted in the sliding inner cylinder 222 to move upward. At this time, the reset spring 625 is compressed, and the bottom of the limit ring 624 no longer abuts against the top of the guiding cylinder 621 until the inner plug 300 is pushed into the semi-finished cover to obtain the finished cover. Subsequently, the upward-pushing air cylinder 612 drives the upward-pushing block 613 to move downward to reset. The force-transmitting block 623 and the force-transmitting rod 622 also move downward to reset under the action of their own gravity and the elastic force of the reset spring 625, thereby driving the sliding inner cylinder 222 to reset until the bottom of the limit ring 624 abuts against the top of the guiding cylinder 621. The pressing-down air cylinder 52 drives the pressing-down plate 53 to move upward to reset, thereby driving the pressing-down block 54 to move upward to reset.

[0082] S33. Moving the finished cover: The driving motor drives the rotating disk 21 to rotate counterclockwise by 90 degrees (based on Figure 4 the perspective), so that the finished cover moves from the inner-plug 300 assembly station to the finished-cover discharging station.

[0083] S4. Discharging the finished cover: The straightening mechanism 70 releases the finished cover. The handling swing arm 40 located at the finished-cover discharging station transports the finished cover on the disk fixture 20 to the feeding end of the finished-cover discharging line 13, and the finished-cover discharging line 13 transports the finished cover to the subsequent processes.

[0084] S41. Releasing the finished cover: The straightening clamp claws 72 corresponding to the finished-cover discharging station return to the open state and release the finished cover they hold.

[0085] S42. Handling of the finished lid: The lifting assembly 42 drives the handling gripper 43 to move downward until the handling gripper 43 contacts the finished lid on the fixture die core 22 at the corresponding finished lid blanking station and grabs it. Then, the lifting assembly 42 drives the handling gripper 43 to move upward and reset; the rotating assembly 41 drives the lifting assembly 42 to rotate 180 degrees, causing the positions of the two sets of handling grippers 43 to be interchanged. At this time, the finished lid is located above the feeding end of the finished lid blanking line 13; the lifting assembly 42 drives the handling gripper 43 to move downward until the handling gripper 43 places the finished lid on the feeding end of the finished lid blanking line 13. Subsequently, the lifting assembly 42 drives the handling gripper 43 to move upward and reset.

[0086] Specifically, the lifting cylinder 422 drives the gripper mounting plate 423 to move downward, thereby driving the handling gripper 43 to move downward until the handling gripper 43 contacts the finished lid on the fixture die core 22 at the corresponding finished lid blanking station and grabs it. Then, the lifting cylinder 422 drives the gripper mounting plate 423 to move upward and reset, thereby driving the handling gripper 43 to move upward and reset; the rotating motor 412 drives the support plate 413 to rotate 180 degrees, thereby driving the cylinder mounting plate 421 to rotate 180 degrees through the support rod 414, causing the lifting cylinder 422 mounted on the cylinder mounting plate 421 and the gripper mounting plate 423 connected to the lifting cylinder 422 to both rotate 180 degrees. Then, the two sets of handling grippers 43 connected to the gripper mounting plate 423 interchange positions, and the handling gripper 43 holding the finished lid moves above the feeding end of the finished lid blanking line 13, that is, the finished lid moves above the feeding end of the finished lid blanking line 13; the lifting cylinder 422 drives the gripper mounting plate 423 to move downward, thereby driving the handling gripper 43 to move downward until the handling gripper 43 buckles the finished lid onto the limit seat 14 at the feeding end of the finished lid blanking line 13. Subsequently, the lifting cylinder 422 drives the gripper mounting plate 423 to move upward and reset, thereby driving the handling gripper 43 to move upward and reset.

[0087] S43. Conveying of the finished lid: The finished lid is buckled on the limit seat 14 of the finished lid blanking line 13 and is conveyed by the finished lid blanking line 13 to the subsequent processes.

[0088] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A cap inner plug assembling machine, characterized in that: It includes a workbench and an inner plug feeding mechanism, a semi-finished cover feeding line, and a finished cover discharging line connected to the workbench. A disk fixture and inner plug feeding stations, semi-finished cover feeding stations, inner plug assembly stations, and finished cover discharging stations sequentially distributed around the disk fixture are arranged on the workbench. A multi-axis robot is arranged at the inner plug feeding station, and handling swing arms are arranged at both the semi-finished cover feeding station and the finished cover discharging station. A number of fixture die cores corresponding to each station are arranged on the disk fixture. The fixture die core includes a fixed outer cylinder and a sliding inner cylinder slidably connected in the fixed outer cylinder. The inner diameter of the sliding inner cylinder matches the outer diameter of the lower section of the inner plug. A straightening mechanism for straightening the semi-finished cover is also arranged on the disk fixture. An upper pressing mechanism and an upper pushing mechanism are arranged opposite to each other up and down at the inner plug assembly station. The upper pushing mechanism includes an upper pushing component and a number of force transmission components. The force transmission components are arranged in one-to-one correspondence with the fixture die cores, and the output end of the force transmission component is connected to the sliding inner cylinder. The upper pushing component is located below the force transmission component.

2. The inner plug assembling machine for bottle caps according to claim 1, characterized in that: The force transmission component includes a guide cylinder fixed on the disk fixture and a force transmission rod slidably inserted into the guide cylinder. The top of the force transmission rod is connected to the sliding inner cylinder, and a force transmission block is arranged at the bottom of the force transmission rod. A limiting ring is fixedly sleeved on the force transmission rod, and the limiting ring abuts against the top of the guide cylinder. A return spring is slidably sleeved on the force transmission rod, and the return spring abuts between the guide cylinder and the force transmission block.

3. The inner plug assembling machine for bottle caps according to claim 2, characterized in that: The upper pushing component includes an upper pushing cylinder fixed on the workbench. An upper pushing block is arranged on the output shaft of the upper pushing cylinder, and the upper pushing block is located directly below the force transmission block.

4. The inner plug assembling machine for bottle caps according to claim 3, characterized in that: The upper pressing mechanism includes a lower pressing support arranged on the workbench. A lower pressing cylinder is arranged on the lower pressing support, and a lower pressing block is arranged on the output shaft of the lower pressing cylinder. The lower pressing block is located directly above the fixture die core.

5. A cap inner plug assembling machine according to claim 4, characterized in that: The straightening mechanism includes a straightening support and a number of straightening jaws arranged on the straightening support. The straightening jaws are arranged in one-to-one correspondence with the fixture die cores.

6. The inner plug assembling machine for bottle caps according to claim 5, characterized in that: The handling swing arm includes a rotating component arranged on the workbench. The output end of the rotating component is provided with a lifting component, and the output end of the lifting component is provided with a number of groups of handling jaws arranged in pairs.

7. The inner plug assembling machine for bottle caps according to claim 6, characterized in that: The rotating component includes a rotating motor and a support plate arranged on the output shaft of the rotating motor. A number of support rods are arranged on the top of the support plate. The lifting component includes a cylinder mounting plate arranged on the top of the support rod. A lifting cylinder is arranged on the cylinder mounting plate, and a jaw mounting plate is arranged on the output shaft of the lifting cylinder. The handling jaws are arranged at the bottom of the jaw mounting plate.

8. The inner plug assembling machine for bottle caps according to claim 7, characterized in that: The inner plug feeding mechanism includes a vibrating disk and a feeding track communicated with the discharging port of the vibrating disk. The disk fixture includes a driving motor and a rotating disk arranged on the output shaft of the driving motor. The multi-axis robot includes a multi-axis robotic arm and inner plug jaws arranged at the output end of the multi-axis robotic arm.

9. A bottle cap inner plug assembling machine according to claim 8, characterized in that: The fixed outer cylinder is detachably connected to the rotating disk, and the sliding inner cylinder is detachably connected to the force transmission rod.

10. A bottle cap inner plug assembling machine according to claim 9, characterized in that: A number of positioning plates corresponding to each station are arranged on the rotating disk. Positioning holes are opened on the positioning plates, and the fixture die cores are arranged in the positioning holes.

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