Capping and capping machine bottle cap tightening device

Abstract

The present invention relates to a bottle cap tightening device of a capping and capping integrated machine, comprising a pair of clamping plates that move close or far to hold or release the bottle, a pair of clamping claw heads that can clamp the bottle cap and rotate, a mounting seat is provided above the clamping claw head, a rotating shaft that drives the clamping claw head to rotate is provided at the lower part of the mounting seat, a displacement shaft that can push the clamping claw head to move downward synchronously when rotating is connected to the upper part of the mounting seat, a swing sleeve that pushes the displacement shaft to swing and realizes the clamping claw head to swing between the cap feeding device and the slot through the mounting seat is provided at the upper end of the displacement shaft, a tensioning and closing mechanism that realizes the opening and closing of the clamping claw head is provided between the lower end of the rotating shaft and the clamping claw head, and the tensioning and closing mechanism has a conical head that opens or tightens a pair of clamping claw heads by lifting and moving. The present invention realizes the whole process of tightening the bottle cap to the bottle mouth through a series of action processes of swinging and removing the cap, rotating and lifting and screwing the cap of a pair of clamping claw heads, and meets the requirements of automatic and continuous operation of the capping and capping integrated machine.

Description

Technical Field

[0001] The invention relates to a bottle cap tightening device used in a capping and capping integrated machine. Background Art

[0002] The capping and capping machine can be used to press the bottle cap onto the bottle mouth and tighten it. When the capping or pumping cap is conveyed to the capping station of the machine by the conveyor belt on the cap feeding device, the two sides of the capping body or pumping cap head are placed on the two conveyor belts. For the pumping cap, its straw part is placed vertically between the two conveyor belts. In order to ensure the continuity of the operation of the machine, a clamping head that can complete the action of taking the cap, pressing the cap and screwing the cap is usually set at the capping station. Therefore, it must be equipped with a corresponding driving device to complete a series of action processes of the clamping head and tighten the bottle cap, so as to realize the automatic and continuous operation of the machine. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, the present invention provides a bottle cap tightening device which can realize the automatic and continuous operation of a capping and capping integrated machine.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a bottle cap tightening device of a capping and screwing integrated machine, comprising a clamping part for straightening the bottle when screwing the cap, a cap screwing part for tightening the bottle cap, a cap feeding device for conveying the bottle cap is arranged beside the screwing device, and the bottle to be screwed is placed in a card slot evenly distributed around the rotating disk of the integrated machine;

[0005] The clamping part comprises a pair of clamping plates which move towards or away from each other to hold or release the bottle;

[0006] The screw-on cap part comprises a pair of clamping claw heads which can clamp the bottle cap and rotate, a mounting seat is provided above the clamping claw heads, a rotating shaft which drives the clamping claw heads to rotate is provided at the lower part of the mounting seat, a displacement shaft which can push the clamping claw heads to move downward synchronously when rotating is connected to the upper part of the mounting seat, a swing sleeve which pushes the displacement shaft to swing and realizes the swing of the clamping claw heads between the cap feeding device and the slot through the mounting seat is provided at the upper end of the displacement shaft, a tensioning and closing mechanism which realizes the opening and closing of the clamping claw heads is provided between the lower end of the rotating shaft and the clamping claw heads, and the tensioning and closing mechanism has a conical head which opens or tightens a pair of clamping claw heads by lifting and lowering.

[0007] Specifically, the clamping part includes a hollow column fixed on the base of the integrated machine, a sliding seat is provided on the back of the column, an L-shaped plate is installed on the sliding seat, a double-outlet cylinder is installed on the bottom surface of the front end of the L-shaped plate through a connecting block, and a pair of clamping plates are respectively connected to the piston rod of the double-outlet cylinder.

[0008] In order to meet the use of bottles of different heights, a lifting screw is arranged in the cavity of the column, the lifting screw is transmission-connected with a lifting nut fixedly connected with the slide seat, and the upper end of the lifting screw extends out of the column and is connected with a lifting hand wheel.

[0009] Furthermore, the opening and closing mechanism includes a telescopic cylinder fixed on a mounting seat, the piston rod of the telescopic cylinder is connected to a push rod inserted into a rotating shaft, a conical head is fixed to the bottom end of the push rod, an adjusting sleeve is clamped at the lower end of the rotating shaft, the lower end of the adjusting sleeve has a central slot, the upper half of a pair of clamping claw heads are located in the central slot, the middle part of the clamping claw head is hinged to the side walls of the adjusting sleeve on both sides of the central slot, and an annular groove is provided in the middle part of the adjusting sleeve, a clamping ring clamped to the upper end of the clamping claw head is clamped in the annular groove.

[0010] A rotary servo motor is fixed on the mounting seat, and the rotary servo motor drives the rotating shaft to rotate through gear transmission, thereby driving the clamping jaw head to rotate.

[0011] In order to realize the swing and lifting of the clamping claw head, a top plate is provided above the rotary cover part, and a swing sleeve is rotatably arranged on the top plate. A swing servo motor for driving the swing sleeve to swing left and right is installed on the top plate beside the swing sleeve. The upper end of the displacement shaft passes through the outside of the upper end of the swing sleeve, and a slide rail is fixed to the side of the swing sleeve. A pulley seat and a lifting sleeve are fixed to the displacement shaft extending out of the swing sleeve, and pulleys clamped on both sides of the slide rail are installed on the side of the pulley seat for rolling and lifting. A lifting servo motor for driving the lifting sleeve to drive the displacement shaft to lift and lower is installed above the top plate through a vertical plate.

[0012] Furthermore, a swing arm is connected to the output shaft of the swing servo motor, and a connecting rod is provided between the swing arm and the swing sleeve. One end of the connecting rod is hinged to the swing arm, and the other end of the connecting rod is hinged to the swing sleeve to push the swing sleeve to swing left and right; a roller is clamped in the groove on the outer wall of the lifting sleeve, and a shift rod is transmission-connected to the output shaft of the lifting servo motor. The roller rotates at the lower end of the shift rod to push the lifting sleeve to drive the displacement shaft up and down.

[0013] When the bottle cap adopts a pump cap, in order to accurately place the straw part of the pump cap in the bottle, a vertical plate is fixedly connected to the back of the connecting block, a double-swing cylinder is installed at the lower end of the vertical plate, and two swing blocks pushed by the piston rod of the double-swing cylinder are respectively connected to clamping blocks that place the straw part in the bottle when the pump cap is tightened.

[0014] The beneficial effect of the present invention is that the present invention realizes the whole process of tightening the bottle cap to the bottle mouth through a series of action processes of swinging and removing the cap, rotating and lifting and screwing the cap by a pair of clamping claws, and meets the requirements of automatic and continuous operation of the capping and screwing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2It is an enlarged structural schematic diagram of the present invention after the adjustment sleeve and the rotating shaft are removed.

[0018] In the figure: 1. column, 2. slide seat, 3. L-shaped plate, 4. connecting block, 5. double-outlet cylinder, 6. clamping plate, 7. hand wheel, 8. vertical plate, 9. double-swing cylinder, 10. clamping block, 11. clamping claw head, 12. mounting seat, 13. rotating shaft, 14. rotating servo motor, 15. top plate, 16. displacement shaft, 17. swing sleeve, 18. swing servo motor, 19. swing arm, 20. connecting rod, 21. slide rail, 22. pulley seat, 23. lifting clamping sleeve 24. pulley, 25. vertical plate, 26. lifting servo motor, 27. roller, 28. lever, 29. telescopic cylinder 30. push rod, 31. conical head, 32. adjusting sleeve, 33. snap ring, 34. ring sleeve, 35. spring, 36. cover feeding device, 37. rotating disk DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] like Figure 1 , Figure 2 The bottle cap tightening device of the capping and screwing machine shown is suitable for tightening the screw cap or pump cap on the bottle mouth. It is installed in the capping station of the capping and screwing machine. The cap feeding device 36 for conveying the bottle cap is arranged beside the tightening device. The bottles to be screwed with caps are placed in the card slots evenly distributed around the rotating disk 37 of the integrated machine and rotated in sequence according to the station.

[0021] The tightening device comprises a clamping part for straightening the bottle when screwing the cap, and a capping part for tightening the bottle cap.

[0022] The clamping part: The clamping part includes a hollow column 1 fixed on the base of the integrated machine, a slide seat 2 is provided on the back of the column 1, an L-shaped plate 3 is installed on the slide seat 2, a connecting block 4 is fixedly connected to the bottom surface of the front end of the L-shaped plate 3, and a double-outlet cylinder 5 is installed on the back of the connecting block 4. The piston rods of the double-outlet cylinder 5 are respectively connected with a clamping plate 6. As the piston rods on both sides of the double-outlet cylinder 5 extend or contract, the clamping plates 6 move closer to support the bottle when screwing the cap, or move farther to release the clamping of the bottle after the cap is screwed.

[0023] Since bottles have different specifications and heights, in order to ensure that the bottles can be effectively straightened when screwing the caps, a lifting screw is provided in the cavity of the column 1, and the lifting screw is transmission-connected with a lifting nut fixedly connected to the slide 2. The upper end of the lifting screw extends out of the column 1 and is connected to a hand wheel 7. The slide 2 is raised and lowered by rotating the hand wheel 7 to achieve the purpose of adjusting the height of a pair of clamping plates 6.

[0024] When the bottle cap adopts a pump cap, since the pump cap has a longer straw part, in order to accurately place the straw part in the bottle, the back of the connecting block 4 is fixedly connected with a vertical plate 8, and a double pendulum cylinder 9 is installed at the lower end of the vertical plate 8. The two pendulum blocks pushed by the piston rod of the double pendulum cylinder 9 are respectively connected with clamping blocks 10 that place the straw part in the bottle when the pump cap is tightened.

[0025] The cap screwing part includes a pair of clamping jaws 11 that can clamp the bottle cap and rotate, a mounting seat 12 is provided above the clamping jaws 11, a rotating shaft 13 that drives the clamping jaws 11 to rotate is provided below the mounting seat 12, a rotating servo motor 14 is fixed on the mounting seat 12, and the rotating servo motor 14 drives the rotating shaft 13 to rotate through gear transmission.

[0026] A top plate 15 is provided above the capping portion, and a displacement shaft 16 is connected to the upper part of the mounting seat 12, which can push the clamping claw head 11 to move downward synchronously when rotating. A swing sleeve 17 is provided at the upper end of the displacement shaft 16, which pushes the displacement shaft 16 to swing and realizes the swing of the clamping claw head 11 between the cap feeding device and the card slot through the mounting seat 12. The swing sleeve 17 is rotatably arranged on the top plate 15, and a swing servo motor 18 is installed on the top plate 15 beside the swing sleeve 17. A swing arm 19 is connected to the output shaft of the swing servo motor 18. A connecting rod 20 is provided between the swing arm 19 and the swing sleeve 17, one end of the connecting rod 20 is hinged to the swing arm 19, and the other end of the connecting rod 20 is hinged to the swing sleeve 17. The swing servo motor 18 pushes the swing sleeve 17 to swing left and right through the swing arm 19 and the connecting rod 20.

[0027] The upper end of the displacement shaft 16 passes through the upper end of the swing sleeve 17, and a slide rail 21 is fixed on the side of the swing sleeve 17. The displacement shaft 16 extending out of the swing sleeve 17 is fixedly connected with a pulley seat 22 and a lifting sleeve 23. The pulley seat 22 is installed with a pulley 24 clamped on both sides of the slide rail 21 for rolling and lifting. The top plate 15 is installed with a lifting servo motor 26 through a vertical plate 25 to drive the lifting sleeve 23 to drive the displacement shaft 16 to move up and down. The outer wall groove of the lifting sleeve 23 is clamped with a roller 27, and the output shaft of the lifting servo motor 26 is connected with a lever 28. The roller 27 is rotated and arranged at the lower end of the lever 28 to push the lifting sleeve 23 to drive the displacement shaft 16 to move up and down.

[0028] A tensioning mechanism for opening and closing the clamping head 11 is provided between the lower end of the rotating shaft 13 and the clamping head 11, and the tensioning mechanism includes a telescopic cylinder 29 fixed on the mounting seat 12, and the piston rod of the telescopic cylinder 29 is connected to a push rod 30 inserted in the rotating shaft 13, and a conical head 31 is fixed to the bottom end of the push rod 30 for opening or tightening a pair of clamping heads 11 by lifting and moving. An adjusting sleeve 32 is clamped at the lower end of the rotating shaft 13, and the lower end of the adjusting sleeve 32 has a central groove, and the upper half of the clamping head 11 is located in the central groove, and the middle part of the clamping head 11 is hinged to the side walls of the adjusting sleeve 32 on both sides of the central groove, and an annular groove is provided in the middle part of the adjusting sleeve 32, and a clamping ring 33 clamped to the upper end of the clamping head 11 is clamped in the annular groove.

[0029] A ring sleeve 34 mounted on the rotating shaft 13 is connected to the bottom surface of the mounting seat 12. A spring 35 is mounted on the rotating shaft 13 between the ring sleeve 34 and the upper end of the adjusting sleeve 32 to provide a buffering effect when the clamping jaw head 11 is raised or lowered. The adjusting sleeve 32 is fixedly connected to the rotating shaft 13 by a latch-type connecting device.

[0030] When the bottle cap is tightened by screwing, the servo motor 18 is first swung to the right (in the top view) through the swing arm 19 and the connecting rod 20. Since the pulley 24 on the pulley seat 22 is clamped on both sides of the slide rail 21, the displacement shaft 16 drives the mounting seat 12 to swing synchronously, so that a pair of clamping claw heads 11 located above the bottle swing to the cap feeding device, and the telescopic cylinder 29 is actuated to push the push rod 30 downward. The downward movement of the push rod 30 causes the conical head 31 to open the upper ends of the pair of clamping claw heads 11, and the pair of clamping claw heads 11 rotate around the hinge point on the side wall of the adjusting sleeve 32, and the lower ends of the pair of clamping claw heads 11 contract inward to clamp the cap feeding device. The bottle cap is placed on the bottle, and then the swing servo motor 18 reverses to pull the swing sleeve 17 to swing to the left to reset, and the clamping claw head 11 holding the bottle cap swings back to the top of the bottle; the piston rods on both sides of the double-outlet cylinder 5 shrink, pushing a pair of clamping plates 6 to move close to each other and straighten the bottle; then the rotating servo motor 14 drives the rotating shaft 13 to rotate through the gear transmission, so that the pair of clamping claw heads 11 rotate and screw the bottle cap into the bottle opening, and at the same time, the lifting servo motor 26 drives the lifting clamping sleeve 23 to drive the displacement shaft 16 to descend, and the transition through the mounting seat 12 makes the clamping claw head 11 rotate and descend synchronously, and finally tighten the bottle cap on the bottle mouth. After the bottle cap is tightened, the piston rods on both sides of the double-outlet cylinder 5 extend, and the pair of clamping plates 6 move far away from each other to loosen the clamping of the bottle, and the bottle with the cap screwed is rotated and transferred to the next station by the rotating disk.

[0031] If the bottle cap is a pump cap, when the clamping claw head 11 holding the bottle cap returns to the position above the bottle, the clamping plate 6 still moves similarly to straighten the bottle. At this time, the piston rod of the double-swinging cylinder 9 moves first, pushing the two clamping blocks 10 to shrink inward to clamp the upper end of the pump cover, ensuring that the pump cover is vertical and the straw part of the pump cover is placed in the bottle. Then the double-swinging cylinder 9 pushes the two clamping blocks 10 outward to separate in an "eight" shape to loosen the clamping of the pump cover head, and then starts the same tightening process as the above-mentioned screwing cap.

[0032] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bottle cap tightening device for a capping and screwing machine, comprising a clamping part for straightening the bottle when screwing the cap, a cap screwing part for tightening the bottle cap, a cap feeding device for conveying the bottle cap is arranged beside the screwing device, and the bottle to be screwed is placed in a slot evenly distributed around the rotating disk of the machine, characterized in that: Clamping part: It has a pair of clamping plates that move closer or farther to hold or release the bottle. The capping part comprises a pair of clamping claw heads which can clamp the bottle caps and rotate, a mounting seat is provided above the clamping claw heads, a rotating shaft which drives the clamping claw heads to rotate is provided at the lower part of the mounting seat, a displacement shaft which can push the clamping claw heads to move downward synchronously when rotating is connected to the upper part of the mounting seat, a swing sleeve which drives the displacement shaft to swing and realizes the clamping claw heads to swing between the cap feeding device and the card slot through the mounting seat is provided at the upper end of the displacement shaft, an opening and closing mechanism which realizes the opening and closing of the clamping claw heads is provided between the lower end of the rotating shaft and the clamping claw heads, and the opening and closing mechanism has a conical head which opens or tightens a pair of clamping claw heads by lifting and lowering; A top plate is provided above the rotary cover part, and a swing sleeve is rotatably arranged on the top plate. A swing servo motor driving the swing sleeve to swing left and right is installed on the top plate beside the swing sleeve. The upper end of the displacement shaft passes through the upper end of the swing sleeve, and a slide rail is fixed on the side of the swing sleeve. A pulley seat and a lifting sleeve are fixed on the displacement shaft extending out of the swing sleeve. A pulley clamped on both sides of the slide rail is installed on the side of the pulley seat to roll and lift. A lifting servo motor driving the lifting sleeve to drive the displacement shaft to lift is installed above the top plate through a vertical plate; The swing servo motor output shaft is connected with a swing arm, a connecting rod is arranged between the swing arm and the swing sleeve, one end of the connecting rod is hinged to the swing arm, and the other end of the connecting rod is hinged to the swing sleeve to drive the swing sleeve to swing left and right; A roller is clamped in the groove of the outer wall of the lifting jacket, and a lever is transmission-connected on the output shaft of the lifting servo motor. The roller rotates at the lower end of the lever to push the lifting jacket to drive the displacement shaft up and down.

2. The bottle cap tightening device of the capping and capping integrated machine as claimed in claim 1, characterized in that: The clamping part includes a hollow column fixed on the integrated machine base, a sliding seat is provided on the back of the column, an L-shaped plate is installed on the sliding seat, a double-outlet cylinder is installed on the bottom surface of the front end of the L-shaped plate through a connecting block, and a pair of clamping plates are respectively connected to the piston rod of the double-outlet cylinder.

3. The bottle cap tightening device of the capping and capping integrated machine as claimed in claim 2, characterized in that: A lifting screw is arranged in the cavity of the column, the lifting screw is transmission-connected with a lifting nut fixedly connected with the slide seat, and the upper end of the lifting screw extends out of the column and is connected with a lifting hand wheel.

4. The bottle cap tightening device of the capping and capping integrated machine as claimed in claim 1, characterized in that: The opening and closing mechanism includes a telescopic cylinder fixed on a mounting seat, the piston rod of the telescopic cylinder is connected to a push rod inserted into a rotating shaft, a conical head is fixed to the bottom end of the push rod, an adjusting sleeve is clamped at the lower end of the rotating shaft, the lower end of the adjusting sleeve has a central slot, the upper half of a pair of clamping claw heads are located in the central slot, the middle part of the clamping claw head is hinged to the side walls of the adjusting sleeve on both sides of the central slot, and an annular groove is provided in the middle part of the adjusting sleeve, a clamping ring clamped to the upper end of the clamping claw head is clamped in the annular groove.

5. The bottle cap tightening device of the capping and capping integrated machine as claimed in claim 1, characterized in that: A rotary servo motor is fixed on the mounting seat, and the rotary servo motor drives the rotating shaft to rotate through gear transmission.

6. The bottle cap tightening device of the capping and capping integrated machine as claimed in claim 2, characterized in that: The back of the connecting block is fixedly connected with a vertical plate, the lower end of which is provided with a double-swing cylinder, and the two swing blocks pushed by the piston rod of the double-swing cylinder are respectively connected with clamping blocks for placing the straw part in the bottle when the pump cover is tightened.

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