A bottle piece conveying device for a filling machine

Abstract

The present application belongs to the technical field of bottle conveying, and discloses a bottle conveying device for a filling machine, comprising: a conveying star wheel for conveying blow-molded bottles, and a plurality of arc-shaped sockets being evenly arranged on the edge of the conveying star wheel; and an arc-shaped blocking strip arranged on the side of the conveying star wheel for cooperating with the conveying star wheel to complete directional conveying of the bottles. The present application is provided with a stabilizing device, so that when the bottles enter the area between the conveying star wheel and the arc-shaped blocking strip, the bottom of the bottle can be subjected to the suction force of the suction cup and the pulling force generated by the gravity of the suction cup itself, so that the bottom of the bottle maintains a stable vertical state under the pulling force of the suction cup, and then the restriction of the sockets and the arc-shaped blocking strip on the bottle neck enables the bottle to maintain a stable vertical state when entering the filling unit, thereby reducing the probability of bottle jamming and ensuring the continuous operation of the production line.

Description

Technical Field

[0001] This invention belongs to the field of bottle conveying technology, and particularly relates to a bottle conveying device for a filling machine. Background Technology

[0002] In a PET bottle liquid filling machine production line, the conveying of bottles is the core link connecting key processes such as bottle blowing, filling, capping, and discharging. The stability and accuracy of its conveying directly affect the production efficiency and product quality of the entire production line.

[0003] Traditional equipment relies solely on the clamps of the conveyor star wheel and side baffles to limit the bottles, lacking effective fixation of the bottle bottom. Furthermore, during the conveying of blow-molded bottles to the filling unit under the action of the conveyor star wheel, the high conveying speed and the light weight of the bottles cause them to easily tilt and wobble. This unstable conveying state prevents the bottles from accurately entering the designated position in the filling unit, leading to bottle jamming. This not only interrupts the filling operation but may also cause bottle breakage, increase production costs, and seriously affect the continuous operation of the production line.

[0004] Therefore, it is necessary to invent a bottle conveying device for filling machines to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides a bottle conveying device for a filling machine, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bottle conveying device for a filling machine, comprising:

[0007] A conveyor star wheel is used to convey blow-molded bottles, and several arc-shaped notches are evenly distributed along the edge of the conveyor star wheel;

[0008] An arc-shaped baffle is provided on the side of the conveying star wheel to cooperate with the conveying star wheel to complete the directional conveying of the bottle;

[0009] A stabilizing device, located at the bottom of the conveying star wheel, is used to restrict the bottom of the bottle. The stabilizing device includes a conical suction cup, a floating ring, a spherical ring, an arcuate ring, and an air suction assembly. Multiple suction cups are distributed one-to-one at the bottom of multiple bayonets, and the suction cups are coaxial with their corresponding top bayonets. The floating ring is sleeved around the suction cup, with its top surface higher than the top of the suction cup. Several elastic connecting pieces are fixedly connected between the floating ring and the suction cup. Several annular protrusions made of soft rubber are evenly distributed on the top of the floating ring. The spherical ring is fixedly connected to the bottom of the suction cup, and is coaxial with the suction cup. The arcuate ring is rotatably sleeved on the outside of the spherical ring, and several connecting blocks are fixedly connected between the arcuate ring and the floating ring.

[0010] Furthermore, the suction assembly includes an annular tube, an air inlet tube, a connecting tube, a flexible tube, a suction tube, and a control mechanism. The annular tube is horizontally positioned at the bottom of the conveying star wheel and is coaxial with the conveying star wheel. The air inlet tube is vertically located at the axis of the annular tube, and a connector is provided between the top end of the air inlet tube and the conveying star wheel. There are multiple connecting tubes, which are evenly connected between the annular tube and the air inlet tube. The flexible tube is rotatably connected to the bottom end of the air inlet tube. The suction tube is horizontally connected to the outside of the annular tube, and the number of suction tubes corresponds one-to-one with the number of suction cups. The end of the suction tube away from the annular tube protrudes upward in a vertical shape. The multiple suction cups are slidably inserted into the ends of the multiple suction tubes away from the annular tube.

[0011] Furthermore, the connecting component includes a fixed shaft, a connecting rod, and a first adjusting screw. The fixed shaft is vertically fixed and inserted through the shaft of the conveying star wheel. The connecting rod is vertically slidably inserted into the bottom center of the fixed shaft, and the bottom end of the connecting rod is fixedly connected to the top end of the air inlet pipe. The first adjusting screw is vertically threaded into the top center of the fixed shaft, and the bottom end of the first adjusting screw is rotatably connected to the top end of the connecting rod.

[0012] Furthermore, the control mechanism includes a valve stem, a ball bearing, a return spring, and an actuating element. The valve stem is vertically inserted into the end of the intake pipe near the annular tube, and a sealing cap is connected to the top of the valve stem. A through hole that communicates with the intake pipe is horizontally opened on the side of the valve stem, and in the initial state, the through hole is located outside the intake pipe. The ball bearing is rotatably mounted on the bottom end of the valve stem. The return spring is sleeved on the bottom end of the valve stem, and its two ends are fixedly connected to the surface of the valve stem and the bottom of the intake pipe, respectively. The actuating element is located at the bottom of the intake pipe and is used to push the valve stem upward.

[0013] Furthermore, the bottle conveying device for the filling machine also includes a mounting component for mounting a fixed shaft and an actuating component. The mounting component includes a mounting plate and a base plate. The mounting plate is fixedly connected to the top of the base plate and is L-shaped. The fixed shaft is vertically rotatably inserted into the mounting plate. A motor is also connected to the top of the mounting plate. A gear is fixedly sleeved on the top output shaft of the motor. A gear ring meshes with one side of the gear. The gear ring is fixedly connected to the bottom of the conveying star wheel and is used to cooperate with the gear to drive the conveying star wheel to rotate around the fixed shaft. A circular hole for inserting a flexible tube is provided through the base plate.

[0014] Furthermore, the actuating component includes an arc-shaped top block, a limiting rod, and a second adjusting screw. The conveying star wheel areas corresponding to both ends of the top block are the same as the conveying star wheel areas corresponding to both ends of the arc-shaped baffle. The axis of the top block is located on the axis of the annular tube. Both ends of the top block are designed with inclined surfaces, and the top block is located on the annular motion trajectory of the valve stem. There are two limiting rods, which are symmetrically and vertically fixedly connected to the bottom of the top block. The bottom end of the limiting rod is vertically slidably inserted into the base plate. The second adjusting screw is vertically rotatably connected to the middle position of the bottom of the top block, and the second adjusting screw is vertically threaded through and inserted into the base plate.

[0015] Furthermore, the bottle conveying device of the filling machine also includes a bottle outlet star wheel, a blow molding unit, a filling unit, a capping unit, and a discharge unit used in conjunction with it. The bottle outlet star wheel is used to convey the blow-molded preforms to the bottle conveying device. The blow molding unit includes multiple blow molding machines arranged in a ring for blowing the preforms and conveying the blow-molded preforms to the bottle outlet star wheel. The filling unit has several filling machines arranged in a ring for filling the bottles conveyed by the bottle conveying device. The capping unit is used to cap the filled bottles. The discharge unit is used to convey the capped bottles to a designated position.

[0016] Furthermore, the bayonet of the conveying star wheel is connected to an arc-shaped pad that matches its shape, and the arc-shaped pad is made of wear-resistant rubber.

[0017] Furthermore, the area of ​​the floating ring is larger than the bottom area of ​​the bottle, and there is a gap between the inner side of the floating ring and the top edge of the suction cup.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention incorporates a stabilizing device, so that when the bottle enters the area between the conveyor star wheel and the arc-shaped baffle, the bottom of the bottle is subjected to both the suction force of the suction cup and the pulling force generated by the gravity of the suction cup itself. This allows the bottom of the bottle to maintain a stable vertical state under the pulling force of the suction cup. In conjunction with the clamp and the arc-shaped baffle acting as a restriction at the bottle neck, the bottle maintains a stable vertical state when entering the filling unit, thereby reducing the probability of bottle jamming and ensuring the continuous operation of the production line.

[0020] 2. The present invention features a floating ring. If the bottom of the bottle is uneven, the floating ring can drive the arc ring to adaptively deflect around the center of the spherical ring via the connecting block. This allows the floating ring to stably adhere to the bottom of the bottle, thus ensuring the suction cup's restraining effect on the bottom of the bottle.

[0021] 3. By providing an annular protrusion, when the bottle moves out of the area of ​​the arc-shaped baffle under the drive of the conveyor star wheel, the control mechanism can close the suction pipe corresponding to the bottom of the bottle at this time, thereby releasing the suction force of the suction cup on the bottom of the bottle. However, since the annular protrusion can still adhere to the bottom of the bottle, as the suction force of the suction cup disappears, the floating ring can still generate a partial downward pulling force on the bottom of the bottle. Thus, at the moment when the bottle is transferred from the conveyor star wheel to the filling unit, the pulling force of the floating ring on the bottom of the bottle can still keep the bottle in a relatively stable vertical state, thereby ensuring the stability of the bottle during transfer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a top view of the overall structure of the invention;

[0024] Figure 3 This is a schematic diagram of the first overall structure of the bottle conveying device in this invention;

[0025] Figure 4 This is a schematic diagram of the second overall structure of the bottle conveying device in this invention;

[0026] Figure 5 This is a three-dimensional schematic diagram of the air intake component and some connecting parts in this invention;

[0027] Figure 6 This is a three-dimensional schematic diagram of the structure of the suction pipe, suction cup, floating ring and valve stem in this invention;

[0028] Figure 7 This is a three-dimensional sectional view of the suction tube, suction cup, and floating ring of the present invention.

[0029] In the diagram: 1. Conveying star wheel; 2. Arc-shaped baffle; 3. Suction cup; 4. Floating ring; 5. Spherical ring; 6. Arc-shaped ring; 7. Elastic connecting piece; 8. Annular protrusion; 9. Connecting block; 10. Annular tube; 11. Air inlet pipe; 12. Connecting pipe; 13. Hose; 14. Suction pipe; 15. Fixed shaft; 16. Connecting rod; 17. First adjusting screw; 18. Valve stem; 19. Ball bearing; 20. Return spring; 21. Sealing cap; 22. Through hole; 23. Mounting plate; 24. Base plate; 25. Motor; 26. Gear; 27. Top block; 28. Limiting rod; 29. ​​Second adjusting screw; 30. Bottle outlet star wheel; 31. Bottle blowing unit; 32. Filling unit; 33. Capping unit; 34. Discharge unit; 35. Arc-shaped pad. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] This invention provides, for example Figures 1 to 7 The illustrated bottle conveying device for a filling machine includes: a conveyor star wheel 1, arc-shaped baffles 2, and a stabilizing device. The conveyor star wheel 1 is used to convey blow-molded bottles, and several arc-shaped notches are evenly distributed along the edge of the conveyor star wheel 1. The arc-shaped baffles 2 are disposed on the side of the conveyor star wheel 1 to cooperate with the conveyor star wheel 1 to complete the directional conveying of the bottles. The stabilizing device is disposed at the bottom of the conveyor star wheel 1 to restrict the bottom of the bottles. The stabilizing device includes conical suction cups 3, floating rings 4, spherical rings 5, arc-shaped rings 6, and suction components. There are multiple suction cups 3, which are distributed one-to-one at the bottom of the multiple notches. The suction cup 3 and its corresponding top slot are coaxial. The floating ring 4 is sleeved around the suction cup 3. The top surface of the floating ring 4 is higher than the top of the suction cup 3. Several elastic connecting pieces 7 are fixedly connected between the floating ring 4 and the suction cup 3. Several soft rubber ring protrusions 8 are evenly distributed in a ring on the top of the floating ring 4. The spherical ring 5 is fixedly connected to the bottom of the suction cup 3. The spherical ring 5 and the suction cup 3 are coaxial. The arc ring 6 is rotatably sleeved on the outside of the spherical ring 5. Several connecting blocks 9 are fixedly connected between the arc ring 6 and the floating ring 4. The area of ​​the floating ring 4 is larger than the bottom area of ​​the bottle. There is a gap between the inner side of the floating ring 4 and the top edge of the suction cup 3.

[0032] The bottle conveying device for the filling machine also includes a mounting component for mounting the fixed shaft 15 and the top moving component. The mounting component includes a mounting plate 23 and a base plate 24. The mounting plate 23 is fixedly connected to the top of the base plate 24 and is L-shaped. The fixed shaft 15 is vertically rotatably inserted into the mounting plate 23. The top of the mounting plate 23 is also connected to a motor 25. A gear 26 is fixedly sleeved on the top output shaft of the motor 25. A gear ring meshes on one side of the gear 26. The gear ring is fixedly connected to the bottom of the conveying star wheel 1 and is used to cooperate with the gear 26 to drive the conveying star wheel 1 to rotate around the fixed shaft 15. A circular hole for inserting a flexible tube 13 is opened through the base plate 24. The arc-shaped baffle 2 is fixedly connected to the base plate 24 by several support rods.

[0033] The bottle conveying device of the filling machine also includes a bottle outlet star wheel 30, a blow molding unit 31, a filling unit 32, a capping unit 33, and a discharge unit 34 used in conjunction with it. The bottle outlet star wheel 30 is used to convey the blow-molded preforms to the bottle conveying device. The blow molding unit 31 includes multiple blow molding machines arranged in a ring, which are used to blow mold the preforms and convey the blow-molded preforms to the bottle outlet star wheel 30. The filling unit 32 has several filling machines arranged in a ring inside, which are used to perform filling operations on the bottles conveyed by the bottle conveying device. The capping unit 33 is used to cap the filled bottles. The discharge unit 34 is used to convey the capped bottles to a designated position.

[0034] The suction assembly includes an annular tube 10, an intake pipe 11, a connecting pipe 12, a flexible hose 13, a suction pipe 14, and a control mechanism. The annular tube 10 is horizontally positioned at the bottom of the conveying star wheel 1 and is coaxial with the conveying star wheel 1. The intake pipe 11 is vertically located at the axis of the annular tube 10, and a connector is provided between the top end of the intake pipe 11 and the conveying star wheel 1. The connector includes a fixed shaft 15, a connecting rod 16, and a first adjusting screw 17. The fixed shaft 15 is vertically fixed and inserted through the axis of the conveying star wheel 1. The connecting rod 16 is vertically slidably inserted into the bottom center of the fixed shaft 15, and the bottom end of the connecting rod 16 is fixedly connected to the top end of the intake pipe 11. The first adjusting screw 17 is vertically threaded into the top center of the fixed shaft 15. The bottom end of 17 is rotatably connected to the top end of the connecting rod 16. There are multiple connecting tubes 12, which are evenly connected between the annular tube 10 and the air inlet tube 11. The hose 13 is rotatably connected to the bottom end of the air inlet tube 11. In use, the hose 13 is connected to the suction device such as a suction pump. As the suction pump connected to the bottom of the hose 13 is started, the suction pump can sequentially generate suction force on the suction cup 3 through the air inlet tube 11, the annular tube 10 and the suction tube 14. The suction tube 14 is horizontally connected to the outside of the annular tube 10, and the number of suction tubes 14 corresponds one-to-one with the number of suction cups 3. The end of the suction tube 14 away from the annular tube 10 protrudes upward and is vertical. Multiple suction cups 3 are slidably inserted into the ends of multiple suction tubes 14 away from the annular tube 10.

[0035] When conveying bottles, due to the difference in bottle height, when it is necessary to convey bottles of different heights, the first adjusting screw 17 can be turned so that the connecting rod 16 can pull the air inlet pipe 11 to move vertically under the action of the first adjusting screw 17, thereby adjusting the distance between the top of the suction cup 3 and the top of the conveying star wheel 1, so as to meet the adsorption and fixing requirements of bottles of different heights. After the adjustment is completed, it is ensured that in the initial state, the top of the floating ring 4 is slightly lower than the bottom height of the bottle when it is stuck in the slot.

[0036] After adjustment, as the blow-molded bottle is placed into the slot of the conveyor star wheel 1 by the blow unit 31, the motor 25 is started. The motor 25 can drive the conveyor star wheel 1 to rotate through the transmission action of the gear 26 to the gear ring, so that the bottle enters the area between the arc-shaped baffle 2 and the conveyor star wheel 1 under the drive of the conveyor star wheel 1. At the same time, the control mechanism can control the corresponding suction pipe 14 at the bottom of the bottle to open, so as to generate suction force on the suction cup 3 at the bottom of the bottle. Since the bottom of the bottle has not yet contacted the floating ring 4 and the suction cup 3 in the initial state, when the bottom of the bottle is subjected to the suction force from the suction cup 3, if the bottom of the bottle is tilted at this time, the bottom of the bottle can be deflected first under the action of the vertical suction force of the suction cup 3, so that the bottle first returns to the vertical state, thereby reducing the probability of bottle jamming when the bottle enters the filling unit 32 later.

[0037] When the bottle returns to an upright position under the suction of the suction cup 3, the bottom of the bottle is close to both the floating ring 4 and the suction cup 3, which causes the top air inlet of the suction cup 3 to be blocked by the bottom of the bottle. This results in a higher air velocity and lower pressure at the bottom of the bottle. At this time, the suction cup 3 can move upward under atmospheric pressure. During this process, due to the presence of the floating ring 4, the floating ring 4 can first contact the bottom of the bottle and maintain contact with it as the suction cup 3 moves upward.

[0038] During the process of the floating ring 4 fitting with the bottom of the bottle, if there is an uneven bottom, the floating ring 4 can drive the arc ring 6 to adaptively deflect around the center of the spherical ring 5 through the connecting block 9, so that the floating ring 4 can stably fit with the bottom of the bottle. During the deflection of the floating ring 4, the elastic connecting piece 7 can adaptively extend and retract to meet the deflection requirements of the floating ring 4.

[0039] Since the top of the suction cup 3 is lower than the top of the floating ring 4, when the floating ring 4 is completely attached to the bottom of the bottle, the suction cup 3 still maintains a gap with the bottom of the bottle. The suction cup 3 is slidably inserted into the end of the suction tube 14, so that while the bottom of the bottle is subjected to the suction force of the suction cup 3, the bottom of the bottle is also subjected to the pulling force generated by the gravity of the suction cup 3 itself. This allows the bottom of the bottle to maintain a stable vertical state under the pulling force of the suction cup 3. In addition, the bayonet and the arc-shaped baffle 2 restrict the bottle neck, so that the bottle maintains a stable vertical state when entering the filling unit 32, thereby reducing the probability of bottle jamming and ensuring the continuous operation of the production line.

[0040] Furthermore, since the floating ring 4 is provided with a ring-shaped protrusion 8 made of soft rubber, when the floating ring 4 is attached to the bottom of the bottle under the suction force of the suction cup 3, the air inside the ring-shaped protrusion 8 can be expelled under the squeezing action, so that the floating ring 4 can be attached to the bottom of the bottle through the ring-shaped protrusion 8. When the bottle moves out of the area where the arc-shaped baffle 2 is located under the drive of the conveying star wheel 1, the control mechanism can close the suction pipe 14 corresponding to the bottom of the bottle at this time, thereby releasing the suction force of the suction cup 3 on the bottom of the bottle, making it easier for the bottle to be transferred to the filling unit 32. However, since the ring-shaped protrusion 8 can still be attached to the bottom of the bottle, the floating ring 4 can still generate a partial downward pull on the bottom of the bottle as the suction force of the suction cup 3 disappears. Thus, at the moment when the bottle is transferred from the conveying star wheel 1 to the filling unit 32, the pull of the floating ring 4 on the bottom of the bottle can still keep the bottle in a relatively stable vertical state, thereby ensuring the stability of the bottle during transfer.

[0041] like Figures 5 to 7 As shown, the control mechanism includes a valve stem 18, a ball bearing 19, a return spring 20, and an actuating component. The valve stem 18 is vertically inserted into the end of the suction pipe 14 near the annular pipe 10, and a sealing cap 21 is connected to the top of the valve stem 18. A through hole 22 that can communicate with the suction pipe 14 is horizontally opened on the side of the valve stem 18. In the initial state, the through hole 22 is located outside the suction pipe 14. The ball bearing 19 is rotatably installed at the bottom of the valve stem 18. The return spring 20 is sleeved at the bottom of the valve stem 18. The two ends of the return spring 20 are fixedly connected to the surface of the valve stem 18 and the bottom of the suction pipe 14, respectively. The actuating component is set at the bottom of the suction pipe 14 and is used to push the valve stem 18 upward.

[0042] The actuating component includes an arc-shaped top block 27, a limiting rod 28, and a second adjusting screw 29. The conveying star wheel 1 areas corresponding to both ends of the top block 27 are the same as the conveying star wheel 1 areas corresponding to both ends of the arc-shaped baffle 2. The axis of the top block 27 is located on the axis of the annular tube 10. Both ends of the top block 27 are designed with inclined surfaces. The top block 27 is located on the annular motion trajectory of the valve stem 18. There are two limiting rods 28. The two limiting rods 28 are symmetrically and vertically fixedly connected to the bottom of the top block 27. The bottom end of the limiting rod 28 is vertically slidably inserted into the base plate 24. The second adjusting screw 29 is vertically rotatably connected to the middle position of the bottom of the top block 27. The second adjusting screw 29 is vertically threaded through and inserted into the base plate 24.

[0043] With the second adjusting screw 29 provided, when the height of the suction pipe 14 and the suction cup 3 is adjusted by the first adjusting screw 17 according to the height of the bottle, the top block 27 can be adjusted in height along the length direction of the limiting rod 28 by turning the second adjusting screw 29, so that the top block 27 can make adaptive adjustments according to the change in the position of the valve rod 18.

[0044] By setting a controlled mechanism, during the rotation of the annular tube 10, when the suction pipe 14 on the annular tube 10 moves closer to the top block 27, as the bottom end of the valve stem 18 on the suction pipe 14 contacts the inclined surface at the end of the top block 27, the ball bearing 19 at the bottom end of the valve stem 18 can roll along the inclined surface at the end of the top block 27. Furthermore, as the suction pipe 14 moves closer to the middle position of the top block 27, the ball bearing 19 can drive the valve stem 18 upward under the pushing action of the inclined surface at the end of the top block 27. As the valve stem 18 moves upward, the return spring 20 can be gradually compressed, and the through hole 22 on the valve stem 18 can gradually enter the suction pipe 14. When the ball bearing 19 at the bottom end of the valve stem 18... When bead 19 moves completely along the inclined surface at the end of top block 27 to the top of top block 27, the sealing cap 21 at the top of valve stem 18 can seal the connection between the top of valve stem 18 and air inlet pipe 11. At this time, the through hole 22 on valve stem 18 can completely enter the suction pipe 14. At this time, the suction pipe 14 is in communication with the annular pipe 10, so that the suction cup 3 corresponding to the current suction pipe 14 can generate suction on the bottom of the bottle. The other suction pipes 14 that are not connected to the annular pipe 10 cannot generate suction through the corresponding suction cup 3, thus avoiding the waste of suction and ensuring that the bottom of the bottle between the arc-shaped baffle 2 and the conveying star wheel 1 can be stably adsorbed by the corresponding suction cup 3.

[0045] like Figure 3 As shown, the bayonet of the conveyor star wheel 1 is connected to an arc-shaped pad 35 that matches its shape. The arc-shaped pad 35 is made of wear-resistant rubber.

[0046] By setting a rubber arc-shaped pad 35 in the bayonet, when the bottle neck is jammed by the arc-shaped pad 35, the arc-shaped pad 35 can increase the friction between the bayonet and the bottle neck, and thus work with the arc-shaped baffle 2 to more stably restrict the upper part of the bottle.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A bottle conveying device for a filling machine, characterized in that, include: The conveyor star wheel (1) is used to convey blow-molded bottles, and several arc-shaped slots are evenly opened on the edge of the conveyor star wheel (1); Arc-shaped baffle (2) is provided on the side of the conveying star wheel (1) to cooperate with the conveying star wheel (1) to complete the directional conveying of the bottle; A stabilizing device is installed at the bottom of the conveying star wheel (1) to restrict the bottom of the bottle. The stabilizing device includes a conical suction cup (3), a floating ring (4), a spherical ring (5), an arc-shaped ring (6), and a suction assembly. There are multiple suction cups (3), which are distributed one-to-one at the bottom of multiple bayonets, and the suction cups (3) are coaxial with the bayonets corresponding to their tops. The floating ring (4) is sleeved around the suction cups (3), and the top surface of the floating ring (4) is... The top of the floating ring (4) is higher than the top of the suction cup (3), and several elastic connecting pieces (7) are fixedly connected between the floating ring (4) and the suction cup (3). Several soft rubber ring protrusions (8) are evenly distributed on the top of the floating ring (4). The spherical ring (5) is fixedly connected to the bottom of the suction cup (3), and the spherical ring (5) is coaxial with the suction cup (3). The arc ring (6) is rotated and sleeved on the outside of the spherical ring (5), and several connecting blocks (9) are fixedly connected between the arc ring (6) and the floating ring (4).

2. The bottle conveying device for a filling machine according to claim 1, characterized in that: The air intake assembly includes an annular pipe (10), an air intake pipe (11), a connecting pipe (12), a flexible hose (13), an air intake pipe (14), and a control mechanism. The annular pipe (10) is horizontally positioned at the bottom of the conveying star wheel (1) and is coaxial with the conveying star wheel (1). The air intake pipe (11) is vertically located at the axis of the annular pipe (10), and a connector is provided between the top end of the air intake pipe (11) and the conveying star wheel (1). There are multiple connecting pipes (12). The tube (12) is evenly connected between the annular tube (10) and the air inlet tube (11). The flexible tube (13) is rotatably connected to the bottom end of the air inlet tube (11). The suction tube (14) is horizontally connected to the outside of the annular tube (10). The number of suction tubes (14) corresponds one-to-one with the number of suction cups (3). The end of the suction tube (14) away from the annular tube (10) protrudes upward in a vertical shape. Multiple suction cups (3) are slidably inserted into the ends of multiple suction tubes (14) away from the annular tube (10).

3. The bottle conveying device for a filling machine according to claim 2, characterized in that: The connector includes a fixed shaft (15), a connecting rod (16), and a first adjusting screw (17). The fixed shaft (15) is vertically fixed and inserted through the shaft of the conveying star wheel (1). The connecting rod (16) is vertically slidably inserted into the bottom center of the fixed shaft (15), and the bottom end of the connecting rod (16) is fixedly connected to the top end of the air inlet pipe (11). The first adjusting screw (17) is vertically threaded into the top center of the fixed shaft (15), and the bottom end of the first adjusting screw (17) is rotatably connected to the top end of the connecting rod (16).

4. The bottle conveying device for a filling machine according to claim 3, characterized in that: The control mechanism includes a valve stem (18), a ball bearing (19), a return spring (20), and a pusher. The valve stem (18) is vertically inserted into one end of the suction pipe (14) near the annular pipe (10), and a sealing cap (21) is connected to the top of the valve stem (18). A through hole (22) is horizontally opened on the side of the valve stem (18) to communicate with the suction pipe (14). In the initial state, the through hole (22) is located outside the suction pipe (14). The ball bearing (19) is rotatably installed at the bottom of the valve stem (18). The return spring (20) is sleeved at the bottom of the valve stem (18). The two ends of the return spring (20) are fixedly connected to the surface of the valve stem (18) and the bottom of the suction pipe (14), respectively. The pusher is set at the bottom of the suction pipe (14) and is used to push the valve stem (18) upward.

5. The bottle conveying device for a filling machine according to claim 4, characterized in that: The bottle conveying device for the filling machine also includes a mounting component for mounting a fixed shaft (15) and an actuating component. The mounting component includes a mounting plate (23) and a base plate (24). The mounting plate (23) is fixedly connected to the top of the base plate (24) and is L-shaped. The fixed shaft (15) is vertically rotatably inserted into the mounting plate (23). A motor (25) is also connected to the top of the mounting plate (23). A gear (26) is fixedly sleeved on the top output shaft of the motor (25). A gear ring meshes on one side of the gear (26). The gear ring is fixedly connected to the bottom of the conveying star wheel (1) and is used to cooperate with the gear (26) to drive the conveying star wheel (1) to rotate around the fixed shaft (15). A circular hole for inserting a flexible tube (13) is provided through the base plate (24).

6. The bottle conveying device for a filling machine according to claim 5, characterized in that: The actuating component includes an arc-shaped top block (27), a limiting rod (28), and a second adjusting screw (29). The conveying star wheel (1) area corresponding to both ends of the top block (27) is the same as the conveying star wheel (1) area corresponding to both ends of the arc-shaped baffle (2). The axis of the top block (27) is located on the axis of the annular tube (10). Both ends of the top block (27) are designed with inclined surfaces. The top block (27) is located on the annular motion trajectory of the valve stem (18). There are two limiting rods (28). The two limiting rods (28) are symmetrically and vertically fixedly connected to the bottom of the top block (27). The bottom end of the limiting rod (28) is vertically slidably inserted into the bottom plate (24). The second adjusting screw (29) is vertically rotatably connected to the middle position of the bottom of the top block (27). The second adjusting screw (29) is vertically threaded through and inserted into the bottom plate (24).

7. The bottle conveying device for a filling machine according to claim 6, characterized in that: The bottle conveying device of the filling machine also includes a bottle outlet star wheel (30), a blow molding unit (31), a filling unit (32), a capping unit (33), and a discharge unit (34) used in conjunction with it. The bottle outlet star wheel (30) is used to convey the blow-molded preform to the bottle conveying device. The blow molding unit (31) includes multiple blow molding machines arranged in a ring, which are used to blow mold the preform and convey the blow-molded preform to the bottle outlet star wheel (30). The filling unit (32) has several filling machines arranged in a ring inside, which are used to perform filling operations on the bottles conveyed by the bottle conveying device. The capping unit (33) is used to cap the filled bottles. The discharge unit (34) is used to convey the capped bottles to a designated position.

8. The bottle conveying device for a filling machine according to claim 7, characterized in that: The conveying star wheel (1) has an arc-shaped pad (35) that matches its shape in the bayonet, and the arc-shaped pad (35) is made of wear-resistant rubber.

9. The bottle conveying device for a filling machine according to claim 8, characterized in that: The area of ​​the floating ring (4) is larger than the bottom area of ​​the bottle, and there is a gap between the inner side of the floating ring (4) and the top edge of the suction cup (3).

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