CN115180573B

CN115180573B - Rotary filling production line

Info

Publication number: CN115180573B
Application number: CN202210874599.6A
Authority: CN
Inventors: 张飞宇; 赵思雯; 孙浩
Original assignee: Zhanyi Intelligent Technology Dongtai Co ltd
Current assignee: Zhanyi Intelligent Technology Dongtai Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-08-22
Anticipated expiration: 2042-07-25
Also published as: CN115180573A

Abstract

The invention provides a rotary filling production line which comprises a rotary filling machine, a barrel inlet roller way, a barrel outlet roller way, a rotary barrel inlet device, a rotary barrel outlet device and the like. According to the invention, the empty packaging barrels are conveyed by the barrel feeding roller way, the barrel feeding of the rotary filling machine is finished from the barrel feeding roller way through the rotary barrel feeding device, the M-3 packaging barrels can be filled simultaneously by the reciprocating filling mechanisms on M-2 stations, the filling of the packaging barrels is finished one by one, and the filled packaging barrels are conveyed to the barrel discharging roller way through the rotary barrel discharging device, so that the whole process is fast and efficient, and the filling time is shortened by more than half compared with that of a conventional filling machine.

Description

Rotary filling production line

Technical Field

The invention relates to the field of intelligent processing, in particular to a rotary filling production line.

Background

In the field of filling of large capacity (typically more than 100 litres) packaging barrels, the effect of the capacity of the packaging barrel on the filling efficiency is a major factor. Generally, more than 80% of the process time of a packaging barrel is used for the filling link, so that an insurmountable technical bottleneck exists for filling the high-capacity packaging barrel: under the prior art, the improvement on the flow speed and the flow quantity of the filling gun can only be improved, but the flow speed and the flow quantity of the filling gun are limited by the size of the barrel mouth and the material quality, and the improvement on the flow speed and the flow quantity of the filling gun is difficult to break through. Therefore, how to break through the filling technology of the prior art on the high-capacity packaging barrel and greatly improve the filling efficiency of the high-capacity packaging barrel is the technical problem to be solved by the invention.

Disclosure of Invention

The technical problem to be solved by the embodiment of the invention is to provide a rotary filling production line, which solves the problem of low filling efficiency of a high-capacity packaging barrel.

In order to solve the technical problems, the invention provides a rotary filling production line, which comprises:

the rotary filling machine (30) comprises a large turntable (31) and a rotary support (32) which is arranged in the center of the large turntable (31) and is vertically arranged, and M filling stations which are uniformly arranged around the large turntable (31) are arranged, wherein M is a natural number which is not less than 5;

a barrel feeding roller way (10) paved at a first filling station of the rotary filling machine (30), namely a barrel feeding station;

a barrel discharging roller way (50) paved at the last filling station of the rotary filling machine (30), namely a barrel discharging station;

the rotary barrel feeding device (20) is used for connecting the barrel feeding roller way (10) and a barrel feeding station of the rotary filling machine (30);

the rotary barrel discharging device (40) is used for connecting a barrel discharging station of the rotary filling machine (30) and a barrel discharging roller way (50);

wherein M-2 reciprocating filling stations are formed between the barrel inlet station and the barrel outlet station along the rotation direction of the large turntable (31); correspondingly, a reciprocating filling mechanism (33) is arranged on the rotating support (32), the reciprocating filling mechanism (33) can reciprocate in a reciprocating filling station area by taking the rotating support (32) as a rotating center, the reciprocating filling mechanism (33) is provided with M-3 filling guns (331), one filling station is arranged between every two adjacent filling guns (331), and each filling gun (331) reciprocates between two adjacent filling stations under the drive of the reciprocating filling mechanism.

And a packaging barrel identification device is arranged corresponding to each filling gun and is used for detecting whether the packaging barrel reaches a reciprocating filling station below the filling gun.

According to the rotary filling production line provided by the invention, empty packaging barrels are conveyed by the barrel feeding roller way, the barrel feeding of the rotary filling machine is finished from the barrel feeding roller way through the rotary barrel feeding device, the M-3 packaging barrels can be filled simultaneously by the reciprocating filling mechanisms on M-2 stations, the filling of the packaging barrels is finished one by one, the filled packaging barrels are transferred to the barrel discharging roller way through the rotary barrel discharging device, the whole process is rapid and efficient, and the filling time is shortened by more than half (determined by the quantity of M and the reciprocating movement time) compared with that of a conventional filling machine.

Further comprises:

the barrel rotating device (60) is arranged along the barrel feeding roller way (10) and is positioned at the upstream of the rotary barrel feeding device (20), so that the barrel opening of the packaging barrel on the barrel feeding roller way can be identified and rotated to a preset direction.

The barrel rotating device (60) can adopt automatic barrel rotating equipment and automatic barrel rotating equipment in a barrel rotating method disclosed by CN 113292032A.

In order to solve the above technical problems, the present invention provides a rotary filling system, including:

a rotary drum feeding device (20) for conveying the packaging drums to a drum feeding station, i.e. a first filling station, of the rotary filling machine (30);

a rotary barrel discharging device (40) for conveying away the packaging barrels of a barrel discharging station of the rotary filling machine (30), wherein the barrel discharging station is the last filling station;

wherein, the rotary filling machine (30) forms M-2 reciprocating filling stations between the barrel inlet station and the barrel outlet station along the rotation direction of the large turntable (31); correspondingly, a reciprocating filling mechanism (33) is arranged on the rotating support (32), the reciprocating filling mechanism (33) can reciprocate in a reciprocating filling station area by taking the rotating support (32) as a rotating center, the reciprocating filling mechanism (33) is provided with M-3 filling guns (331), one filling station is arranged between every two adjacent filling guns (331), and each filling gun (331) can reciprocate between two adjacent filling stations under the driving of the reciprocating filling mechanism (33).

According to the rotary filling system provided by the invention, the empty packaging barrels are transferred to the rotary filling machine through the rotary barrel feeding device, and the M-3 packaging barrels can be filled simultaneously by the reciprocating filling mechanisms on M-2 stations, the filling of the packaging barrels is finished one by one, and then the filled packaging barrels are transferred to the barrel discharging roller table through the rotary barrel discharging device, so that the whole process is rapid and efficient, and the filling time is shortened by more than half (determined by the number of M and the reciprocating movement time) compared with that of a conventional filling machine.

In order to solve the above technical problems, the present invention provides a rotary filling driving system, comprising:

a large turntable (31) surrounding M filling stations uniformly arranged on the large turntable (31), wherein M is a natural number not less than 5;

a driving unit (36) which is meshed with the large turntable (31) and provides power for the rotation of the large turntable (31);

a rotation support (32) vertically arranged at the center of the large turntable (31);

the barrel feeding rotary table (21) is meshed with the large rotary table (31), a barrel feeding rotary shaft (22) is arranged in the center of the barrel feeding rotary table (21), and the barrel feeding rotary table (21) drives the barrel feeding rotary shaft (22) to rotate so as to drive the rotary barrel feeding device (20) to rotate;

And the barrel discharging rotary table (41) is meshed with the large rotary table and is 1 filling station away from the barrel feeding rotary table (21), a barrel discharging rotary shaft is arranged in the center of the barrel discharging rotary table, and the barrel discharging rotary table drives the barrel discharging rotary shaft to rotate so as to drive the rotary barrel discharging device (40) to rotate.

The large turntable is meshed with the barrel feeding turntable and the barrel discharging turntable to realize synchronous transmission among the three, and the arrangement positions of the barrel feeding turntable and the barrel discharging turntable realize continuity of barrel feeding, filling and barrel discharging processes, so that the large turntable can orderly carry out other processes as long as the large turntable keeps equal speed transmission, the process connection is accurate, and the process time arrangement can be reasonably controlled.

The automatic packaging machine further comprises a first gear ring (321) and a reciprocating switch cover mechanism (34), wherein the first gear ring (321) is arranged on the rotary support (32) and is coaxially arranged with the rotary support, and the first gear ring (321) is connected with the reciprocating switch cover mechanism (34) and drives the reciprocating switch cover mechanism (34) to move in a first reciprocating filling station, a barrel inlet station, a barrel outlet station and a last reciprocating filling station; or, the reciprocating cap opening and closing mechanism (34) is provided with two, wherein one reciprocating cap opening and closing mechanism reciprocates between a barrel inlet station and a first reciprocating filling station and is used for opening and placing the barrel cap of the packaging barrel on a cap storage structure synchronous with the packaging barrel or on a returning line reversely conveyed with the packaging barrel, and the other reciprocating cap opening and closing mechanism reciprocates between a last reciprocating filling station and a barrel outlet station and is used for removing the barrel cap from the cap storage structure or the returning line and connecting the barrel cap to the barrel mouth of the packaging barrel; the two reciprocating switch cover mechanisms (34) are commonly connected to the first gear ring (321), and the two reciprocating switch cover mechanisms (34) are driven by the first gear ring to synchronously move.

The return line is arranged coaxially with the large turntable but is turned in opposite directions, and typically the speed of revolution of the return line is smaller than the speed of revolution of the large turntable, the ratio of the speeds of revolution being between 3/M and 4/M.

The automatic filling machine further comprises a second gear ring (322) and a reciprocating filling mechanism (33), wherein the second gear ring (322) is arranged on the rotary support (32) and is coaxially arranged with the rotary support, and the second gear ring (322) is connected with the reciprocating filling mechanism (33) and drives the reciprocating filling mechanism (33) to reciprocate at a reciprocating filling station between a first reciprocating filling station and a last reciprocating filling station.

The reciprocating cap opening and closing mechanism and the reciprocating filling mechanism are respectively meshed with the gear ring through motor control gears, so that the gear ring is driven to rotate, and the reciprocating cap opening and closing mechanism and the reciprocating filling mechanism are driven to rotate.

The rotary barrel feeding device (20) comprises a barrel feeding rotary table (21), a barrel feeding rotary shaft (22) and a clamping rotary mechanism (23), wherein the barrel feeding rotary shaft (22) is arranged at the center of the barrel feeding rotary table (21), the clamping rotary mechanism (23) is connected to the top of the barrel feeding rotary shaft (22) so as to clamp a packaging barrel below, the barrel feeding rotary table (21) drives the barrel feeding rotary shaft (22) to rotate, the clamping rotary mechanism (23) surrounds the barrel feeding rotary shaft (22) is provided with N barrel rotating stations arranged on a rotary frame (230), N is a natural number not smaller than 2, N is smaller than M, N is a divisor of M, and the rotation path length of two adjacent barrel rotating stations is equal to that between two adjacent filling stations.

The rotary barrel feeding device can clamp and transport the packaging barrels, namely, the packaging barrels are transported to the large turntable from the barrel feeding roller table, and can realize non-stop rotation and barrel opening azimuth adjustment in the rotation process under the condition of being combined with the identification device, so that the subsequent process is convenient to smoothly carry out.

The barrel feeding rotary table (21) is meshed with the large rotary table (31) through gears; alternatively, when m=6 or 8, n=2, that is, the number of teeth of the large turntable (31) is 3 times or 4 times the number of teeth of the tub feeding turntable (21).

A first rotary driving mechanism (231), a first vertical driving mechanism (232), a recognition device (234) and a clamping mechanism (233) are arranged at each barrel rotating station, wherein the recognition device (234) is arranged on the clamping mechanism (233) and can recognize a barrel opening downwards; the first vertical driving mechanism (232) is used for driving the clamping mechanism (233) to move in the vertical direction; the first rotation driving mechanism (231) is used for driving the clamping mechanism (233) to rotate.

The identification device (234) is arranged on the adjusting mechanism (2341) so that the position and the identification angle of the identification device (234) can be adjusted.

The identification device (234) is arranged on one side of the clamping rotating mechanism (23) far away from the barrel feeding rotating shaft (22).

The clamping mechanism (233) comprises a top plate (2331), a second rotary driving mechanism (2332) and clamping jaws (2333) connected to two sides of the top plate (2331), wherein the second rotary driving mechanism is connected to the top plate (2331) and can drive the clamping jaws (2333) on two sides to move relatively, and the clamping jaws (2333) are connected to the top plate (2331) in a sliding connection mode.

The second rotary driving mechanism (2332) comprises a motor driving belt wheel transmission or a motor driving chain wheel transmission, and correspondingly, the clamping jaw (2333) is connected to a transmission belt or a transmission chain.

A method of transferring packaging barrels from the barrel intake roller way (10) to a barrel intake station of the rotary filling machine (30) using the rotary barrel intake device (20), comprising:

the clamping rotating mechanism (23) is driven to rotate around the barrel feeding rotating shaft (22) and the rotating speed is kept unchanged;

when the first vertical driving mechanism (232) rotates to the position above the packaging barrel of the barrel feeding roller way (10), the first vertical driving mechanism (232) is controlled to lower the clamping mechanism (233) while rotating;

When the clamping jaw (2333) of the clamping mechanism (233) is lowered below the top surface of the packaging barrel, the clamping jaw (2333) is controlled to shrink, and when the clamping jaw is shrunk to clamp the outer wall of the packaging barrel, the rotating shaft center of the clamping mechanism (233) is just rotated to the top surface center of the packaging barrel;

then immediately controlling the first vertical driving mechanism (232) to lift upwards, so that the packaging barrel is separated from the barrel feeding roller way (10), and continuously rotating the whole barrel feeding device (20) in the process;

the position of the bung is identified through the identification device (234), and when the position of the bung forms an angle A with the preset position, the first rotation driving mechanism (231) controls the clamping mechanism (233) to reversely rotate by the angle A, so that the position of the bung points to the preset position;

when the rotary barrel feeding device (20) drives the packaging barrel to rotate to a barrel feeding station which is about to reach the large rotary table (31), the packaging barrel is controlled to be put down through the first vertical driving mechanism (232), and when the packaging barrel is put down to be in contact with the barrel feeding station of the large rotary table (31), the clamping jaw (2333) is controlled to be opened quickly through the second rotary driving mechanism (2332), meanwhile, the clamping mechanism (233) is controlled to ascend through the first vertical driving mechanism (232), and then the packaging barrel is transferred from the barrel feeding roller way (10) to the barrel feeding station of the rotary filling machine (30).

In the transferring process, the large turntable (31) drives the barrel feeding turntable (21) to rotate at a constant speed.

The number of the clamping jaws (2333) can be two or more than three.

The invention realizes the transportation of the packaging barrel by utilizing the rotary barrel feeding device, and simultaneously adjusts the orientation of the barrel mouth of the packaging barrel, thereby facilitating the smooth proceeding of the subsequent cover opening and cover closing process.

The rotary barrel conveying method of the packaging barrel comprises the following steps:

the barrel opening at the top of the packaging barrel conveyed by the barrel feeding roller way (10) is identified by a barrel rotating device (60), the barrel opening is rotated to a preset direction, and then the packaging barrel is continuously conveyed forwards by the barrel feeding roller way (10);

clamping the packaging barrel by a clamping mechanism (233) in the rotating process by a clamping rotating mechanism (23) of the rotary barrel feeding device (20), and lifting the packaging barrel by a first vertical driving mechanism (232);

then, the identification device (234) of the clamping rotating mechanism (23) identifies the bung, and the orientation of the bung is adjusted through the first rotating driving mechanism (231) in the rotating process of the clamping rotating mechanism (23) so as to be aligned to the preset orientation;

when the packaging barrel is about to reach the barrel feeding station of the large turntable (31), the first vertical driving mechanism (232) is controlled to descend the packaging barrel to the barrel feeding station, and the clamping mechanism (233) releases the clamping of the packaging barrel.

According to the barrel rotating conveying method, the barrel opening is identified and adjusted twice, and the barrel opening is conveyed forwards continuously after being identified for the first time, so that the barrel opening is identified and accurately adjusted for the second time while the packaging barrel is clamped and rotated through the clamping rotating mechanism, deflection errors caused to the barrel opening in the roller way conveying process are overcome, and the fact that the packaging barrel is accurately placed at the operating position of the cover opening and closing mechanism when being conveyed to the barrel feeding station of the large turntable is ensured, and smooth proceeding of a subsequent process is ensured.

The rotary filling machine (30) further comprises:

the reciprocating switch cover mechanism (34) is connected to a first gear ring (321) of the rotary support (32), the first gear ring (321) and the rotary support (32) are coaxially arranged, and the reciprocating switch cover mechanism (34) can reciprocate between a first reciprocating filling station, a barrel inlet station, a barrel outlet station and a last reciprocating filling station by taking the rotary support (32) as a center.

The reciprocating cap opening and closing mechanism (34) includes:

a cap opening/closing device (341) capable of rotating to open and close the cap;

a second vertical driving mechanism (342) capable of driving the opening and closing cap (341) to move in a vertical direction;

A third rotary drive mechanism (343) in meshed transmission with the first gear ring for driving the first gear ring so as to drive the reciprocating switch cover mechanism (34) to reciprocate around the rotary support (32) as a whole;

the capping device (344) is arranged at the side of the capping device (341) and is provided with an elastic pressure head, and the height of the elastic pressure head is lower than that of the capping device (341), so that the elastic pressure head can contact with the top of the packaging barrel and press the packaging barrel before the capping device (341) contacts with the top of the packaging barrel.

The cap opening and closing device (341) uses a cap screwing and quick-changing structure and a cap opening and closing robot as disclosed in CN113998646A, or uses a gas claw and cap opening and closing robot with a three-claw structure as disclosed in CN113929033A, or uses a cap screwing device and a related cap opening and closing technical scheme in the cap opening and closing robot as disclosed in CN 113753816A.

A method of opening and closing a package utilizing a reciprocating cap opening and closing mechanism (34) in a rotary filling line, comprising:

when the barrel feeding rotary table (21) is used for placing the packaging barrel at a barrel feeding station, the reciprocating cover opening and closing mechanism (34) and the large rotary table (31) are controlled to synchronously rotate in the forward direction, and the barrel cover is opened before the packaging barrel reaches the next filling station;

Then judging whether the number of the packaging barrels on the large turntable (31) meets the cover storage condition or not:

if the cover storage condition is met, controlling the reciprocating cover opening and closing mechanism (34) to rapidly reversely rotate to the cover storage device (35), and placing a barrel cover on the cover storage device (35);

if the cap storage condition is not met, controlling the reciprocating cap opening and closing mechanism (34) to rapidly reversely rotate to a packaging barrel passing through the last reciprocating filling station, then controlling the reciprocating cap opening and closing mechanism (34) to synchronously rotate with the large turntable (31) in the forward direction, and covering a barrel cover on the packaging barrel before the packaging barrel reaches a barrel discharging station;

then judging whether the number of the packaging barrels on the large turntable (31) meets the cap taking condition or not:

if the condition is not met, continuing to execute the operation of opening and closing the cover on the next packaging barrel on the barrel feeding station;

and if the cover taking condition is met, controlling the reciprocating cover opening and closing mechanism (34) to take the cover from the cover storage device (35), then rapidly and reversely rotating to a packaging barrel passing through the last reciprocating filling station, controlling the reciprocating cover opening and closing mechanism (34) to synchronously rotate with the large turntable (31) in the forward direction, and covering the barrel cover on the packaging barrel before the packaging barrel reaches the barrel discharging station.

When the cover storage condition is not met, the cover storage device (35) is controlled to retract so as to avoid the reciprocating cover opening and closing mechanism (34).

The cover storage condition is as follows:

the number of the packing barrels on the large turntable is greater than the number of the barrel covers on the cover storage device, and the number of the barrel covers on the cover storage device is less than M-2.

The cover taking condition is as follows:

the loading station is empty and the number of packaging barrels on the large turntable = the number of barrels on the depositing device.

The no-load of the barrel feeding station means that when a preset time interval is reached, no new packaging barrel is located at the barrel feeding station.

The method for opening and closing the cover on the rotary filling production line provided by the invention can solve the problems of opening the cover, storing the cover, taking the cover and closing the cover on the rotary filling production line by only one cover opening and closing device, thereby enabling the rotary filling production line to run at high speed and stably.

A cover storage device (35) is arranged between the barrel inlet station and the barrel outlet station, and the cover storage device (35) is connected to the rotary support (32) and can move in a telescopic manner relative to the rotary support (32) seat so as to avoid the reciprocating cover opening and closing mechanism (34).

The cover storage device (35) is provided with the cover storage positions with the same number as that of the reciprocating filling stations, namely M-2 cover storage positions.

The cover storage device (35) is connected to the rotating support (32) through a telescopic mechanism (351), the telescopic mechanism comprises a telescopic bracket, a telescopic cylinder and a linear guide rail, the telescopic bracket is fixedly connected to the rotating support (32), the linear guide rail is arranged on the telescopic bracket, and the telescopic cylinder drives the cover storage device (35) to move along the linear guide rail.

A method of opening and closing a package drum on a rotary filling line using two reciprocating lid opening and closing mechanisms (34), comprising:

when the barrel feeding rotary table (21) places the packaging barrel at a barrel feeding station, a reciprocating cap opening and closing mechanism (34) is controlled to synchronously rotate with the large rotary table (31) and the packaging barrel on the large rotary table in the forward direction, the barrel cover is opened before the packaging barrel reaches the next reciprocating filling station, the barrel cover is placed on a return line, and then the reciprocating cap opening and closing mechanism (34) returns to the barrel feeding station to wait for the next packaging barrel;

the return line is conveyed along the opposite direction of the large turntable and reaches the position point between the last reciprocating filling station and the barrel discharging station (including the position point of the last reciprocating filling station but not including the position point of the barrel discharging station) before the packaging barrel positively rotates on the large turntable (31) to the last reciprocating filling station;

The lid is then removed from the return line by another reciprocating lid opening and closing mechanism (34) and rotates in unison with the package and closes the lid before the package reaches the ejection station, and the reciprocating lid opening and closing mechanism returns to the lid removal position to await the next lid.

The number of stations on the large turntable is larger, and the rotating speed of the return line can be smaller.

when the barrel feeding rotary table (21) places the packaging barrel at a barrel feeding station, controlling a reciprocating cap opening and closing mechanism (34) to synchronously rotate with the large rotary table (31) and the packaging barrel on the large rotary table, opening a barrel cover before the packaging barrel reaches the next reciprocating filling station, placing the barrel cover on a cap storing structure synchronously transferred with the packaging barrel on the large rotary table, and returning the reciprocating cap opening and closing mechanism (34) to the barrel feeding station to wait for the next packaging barrel;

when the packaging barrel rotates to the last reciprocating filling station, another reciprocating cap opening and closing mechanism waiting at the last reciprocating filling station is controlled to synchronously rotate with the packaging barrel on the large turntable, the barrel cap is taken down from the cap storing structure, the barrel cap is covered back to the packaging barrel before the packaging barrel reaches the barrel discharging station, and then the reciprocating cap opening and closing mechanism returns to the last reciprocating filling station again to wait for the next barrel cap.

The invention provides two different solutions for solving the technical problems of uncovering, storing, taking and closing covers, wherein one solution is to design a return line independently, and the other solution is to design a cover storing structure which runs synchronously, namely, the cover opening, the cover storing, the cover taking and the cover closing actions of a packaging barrel are realized through two reciprocating cover opening and closing mechanisms in a mode of reverse rotation or synchronous rotation, so that the rotary filling production line can realize continuous and stable production.

Each filling gun on the reciprocating filling mechanism (33) is provided with a driving mechanism in the vertical direction; the reciprocating filling mechanism (33) is connected to a second gear ring (322) of the rotary support (32), the second gear ring (322) and the rotary support (32) are coaxially arranged, and the reciprocating filling mechanism (33) can reciprocate between a first reciprocating filling station and a last reciprocating filling station by taking the rotary support (32) as a center.

The rotary filling method of the six-station rotary filling machine comprises the following steps:

continuously conveying the packaging barrels by a barrel feeding roller way (10);

when the packaging barrel advances to the barrel rotating device (60), the barrel opening of the packaging barrel on the barrel feeding roller way (10) is rotated to a preset direction by utilizing the barrel rotating device (60), and the packaging barrel is conveyed to a barrel feeding station on a large turntable (31) of the rotary filling machine by utilizing the rotary barrel feeding device (20);

Opening the barrel cover of the packaging barrel by utilizing a reciprocating cover opening and closing mechanism (34), and placing the barrel cover on a cover storage device (35) or moving to the last reciprocating filling station;

after the packaging barrel rotates to a first reciprocating filling station under the drive of a large turntable (31), the packaging barrel is filled by a first filling gun of a reciprocating filling mechanism (33);

after the packaging barrel rotates to a second reciprocating filling station under the drive of the large turntable (31), the packaging barrel is filled by a second filling gun of the reciprocating filling mechanism (33), and at the moment, the first filling gun is reset to the first reciprocating filling station to fill the next packaging barrel;

after the packaging barrel rotates to a third reciprocating filling station under the drive of the large turntable (31), the packaging barrel is filled by a third filling gun of a reciprocating filling mechanism (33), and at the moment, the first filling gun and the second filling gun are reset to the first reciprocating filling station and the second reciprocating filling station respectively;

after the packaging barrel is transported to a fourth reciprocating filling station under the drive of the large turntable (31), the barrel cover is covered on the packaging barrel by a reciprocating cover opening and closing mechanism (34);

when the packaging barrel reaches a barrel discharging station under the drive of the large rotary table (31), the packaging barrel is transferred onto a barrel discharging roller way (50) from the large rotary table (31) by a rotary barrel discharging device (40), so that filling is completed.

The rotary filling method of the six-station rotary filling machine provided by the invention can be used for simultaneously filling three packaging barrels on the large turntable by utilizing the three filling guns of the reciprocating filling mechanism, and the working efficiency of the filling mode of one gun and one barrel in the prior art is improved by more than two times: according to the invention, the cover opening, filling, cover closing and barrel discharging of a packaging barrel can be completed only by 1/6 circumference of one large turntable; the filling time of each packaging barrel in the prior art is the process time of complete uncovering, filling and cover closing. So that

The rotary barrel discharging device (40) comprises a barrel discharging rotary table, a barrel discharging rotary shaft and a clamping rotary mechanism, wherein the clamping rotary mechanism is provided with N barrel rotating stations arranged on a rotary frame around the barrel discharging rotary shaft, N is a natural number not less than 2, N is less than M, and N is a divisor of M; the length of the rotating path of the two adjacent rotary barrel stations is equal to that of the rotating path between the two adjacent filling stations.

The barrel discharging turntable is meshed with the large turntable through a gear, and the ratio between the diameters of the barrel discharging turntable and the large turntable is N/M; alternatively, when m=6 or 8, n=2, that is, the number of teeth of the large turntable is 3 times or 4 times the number of teeth of the tub-out turntable.

A third rotary driving mechanism, a third vertical driving mechanism and a clamping mechanism are arranged at each barrel rotating station, and the third vertical driving mechanism is used for driving the clamping mechanism to move in the vertical direction; the third rotation driving mechanism is used for driving the clamping mechanism to rotate.

The rotary barrel ejection device (40) may be provided with fewer identification means than the rotary barrel ejection device (20).

Drawings

FIG. 1 is a schematic plan view of an overall structure in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the whole structure in an embodiment of the present invention;

fig. 3 and 4 are schematic structural views of a rotary filling driving system according to an embodiment of the present invention;

fig. 5 and fig. 6 are schematic perspective views of a clamping and rotating mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic plan layout of a clamping and rotating mechanism according to an embodiment of the present invention;

fig. 8 and 9 are schematic diagrams of connection structures of a first rotation driving mechanism and a first vertical driving mechanism in an embodiment of the present invention;

fig. 10 and 11 are schematic structural views of a clamping mechanism according to an embodiment of the invention;

fig. 12 and 13 are schematic structural views of a reciprocating filling mechanism according to an embodiment of the present invention;

fig. 14 and 15 are schematic structural views of a reciprocating cap opening and closing mechanism according to an embodiment of the present invention;

Fig. 16, 17 and 18 are schematic structural views of a storage cover device according to an embodiment of the invention.

In the figure:

10-a barrel feeding roller way;

20-rotating a barrel feeding device; 21-a barrel feeding rotary table; 22-a barrel feeding rotating shaft; 23-clamping rotating mechanism; 230-rotating frame; 231-a first rotary drive mechanism; 232-a first vertical drive mechanism; 233-a clamping mechanism; 2331-top plate; 2332-a second rotary drive mechanism; 2333-clamping jaw; 234-identification means; 2341-an adjustment mechanism;

30-rotating a filling machine; 31-a large turntable; 32-a rotary support; 321-a first gear ring; 322-a second ring gear; 33-a reciprocating filling mechanism; 331-filling gun; 34-a reciprocating cap opening and closing mechanism; 341-opening and closing the cap device; 342-a second vertical drive mechanism; 343-a third rotary drive mechanism; 344-a capping device; 35-a cap storage device; 351-telescoping mechanism; 36-a drive unit;

40-rotating the barrel discharging device;

50-discharging the barrel roller way;

60-barrel rotating device;

70-packaging barrel.

Description of the embodiments

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

It should be noted that, the filling stations in this embodiment refer to process reference points uniformly distributed on the circumference of the large turntable 31, which are related to the positions of the rotary barrel feeding device 20 and the rotary barrel discharging device 40, for example, the positions corresponding to and connected with the rotary barrel feeding device 20 and the rotary barrel discharging device are respectively a barrel feeding station and a barrel discharging station, and a filling station is arranged between the two stations. Taking a six-station filling production line as an example, besides a barrel inlet station and a barrel outlet station, four filling stations, namely four reciprocating filling stations, are also arranged on the circumference of the large turntable. The barrel rotating station in the embodiment refers to a station which rotates along with the barrel feeding rotating shaft on the rotary barrel feeding device.

As shown in fig. 1-18, the present invention provides a rotary filling line comprising:

the rotary filling machine 30 comprises a large turntable 31 and a rotary support 32 which is arranged in the center of the large turntable 31 and is vertically arranged, and M filling stations are uniformly arranged around the large turntable 31, wherein M is a natural number not less than 5;

a barrel feeding roller way 10 paved at a first filling station of the rotary filling machine 30, namely a barrel feeding station;

the barrel discharging roller way 50 is paved at the last filling station of the rotary filling machine 30, namely a barrel discharging station;

and, a rotary barrel feeding device 20 for connecting the barrel feeding roller way 10 and a barrel feeding station of the rotary filling machine 30;

The rotary barrel discharging device 40 is used for connecting a barrel discharging station of the rotary filling machine 30 and a barrel discharging roller way 50;

wherein, along the rotation direction of the large turntable 31, M-2 reciprocating filling stations are formed between the barrel inlet station and the barrel outlet station; correspondingly, a reciprocating filling mechanism 33 is arranged on the rotary support 32, the reciprocating filling mechanism 33 can reciprocate in the region of the reciprocating filling stations by taking the rotary support 32 as a rotation center, the reciprocating filling mechanism 33 is provided with M-3 filling guns 331, one filling station is arranged between every two adjacent filling guns 331, and each filling gun 331 reciprocates between the two adjacent filling stations under the driving of the reciprocating filling mechanism 33.

According to the rotary filling production line provided by the invention, empty packaging barrels are conveyed by the barrel feeding roller way, the barrel feeding of the rotary filling machine is finished from the barrel feeding roller way through the rotary barrel feeding device, M-3 packaging barrels can be filled simultaneously by the reciprocating filling mechanisms on M-2 stations, the filling of the packaging barrels is finished one by one, the filled packaging barrels are transferred to the barrel discharging roller way through the rotary barrel discharging device, the whole process is quick and efficient, and compared with the conventional filling machine, the filling time is shortened by more than half and is determined by the quantity of M and the reciprocating movement time.

Further comprises:

the barrel rotating device 60 is arranged along the barrel feeding roller way 10 and is positioned at the upstream of the rotary barrel feeding device 20, and can identify the barrel opening of the packaging barrel on the barrel feeding roller way and rotate the barrel opening of the packaging barrel to a preset orientation.

The barrel rotating device 60 can adopt an automatic barrel rotating device and an automatic barrel rotating device in a barrel rotating method disclosed in CN 113292032A.

a rotary drum feeding device 20 for conveying the packaging drums to a drum feeding station of a rotary filling machine 30, namely a first filling station;

the rotary barrel discharging device 40 is used for conveying the packaging barrels of the barrel discharging station of the rotary filling machine 30 away, and the barrel discharging station is the last filling station;

wherein, the rotary filling machine 30 forms M-2 reciprocating filling stations between the barrel inlet station and the barrel outlet station along the rotation direction of the large turntable 31; correspondingly, a reciprocating filling mechanism 33 is arranged on the rotary support 32, the reciprocating filling mechanism 33 can reciprocate in the region of the reciprocating filling stations by taking the rotary support 32 as a rotation center, the reciprocating filling mechanism 33 is provided with M-3 filling guns 331, one filling station is arranged between every two adjacent filling guns 331, and each filling gun 331 can reciprocate between the two adjacent filling stations under the driving of the reciprocating filling mechanism 33.

According to the rotary filling system provided by the invention, the empty packaging barrels are transferred to the rotary filling machine through the rotary barrel feeding device, and the M-3 packaging barrels can be filled simultaneously by the reciprocating filling mechanisms on M-2 stations, the filling of the packaging barrels is finished one by one, and then the filled packaging barrels are transferred to the barrel discharging roller table through the rotary barrel discharging device, so that the whole process is rapid and efficient, and the filling time of the whole filling machine is shortened by more than half compared with that of a conventional filling machine and is determined by the quantity of M and the reciprocating movement time.

a large turntable 31, M filling stations uniformly arranged around the large turntable 31, wherein M is a natural number not less than 5; the large turntable 31 is provided with platforms capable of bearing the packaging barrels 70, the number of the platforms is equal to that of the filling stations, and corresponding process steps (such as uncovering, filling, closing and the like) can be started according to the condition that the platforms rotate to corresponding stations along with the large turntable 31.

A driving unit 36 for engaging with the large turntable 31 and powering the rotation of the large turntable 31;

a rotation support 32 vertically arranged at the center of the large turntable 31; the rotary support 32 is used for providing support for each filling mechanism, such as a reciprocating filling mechanism 33, a reciprocating cap opening and closing mechanism 34 and the like;

The barrel feeding rotary table 21 is meshed with the large rotary table 31, a barrel feeding rotary shaft 22 is arranged in the center of the barrel feeding rotary table 21, and the barrel feeding rotary table 21 drives the barrel feeding rotary shaft 22 to rotate so as to drive the rotary barrel feeding device 20 to rotate;

the barrel discharging rotary table 41 is meshed with the large rotary table and is separated from the barrel feeding rotary table 21 by 1 filling station, a barrel discharging rotary shaft is arranged in the center of the barrel discharging rotary table, and the barrel discharging rotary table drives the barrel discharging rotary shaft to rotate so as to drive the rotary barrel discharging device 40 to rotate.

The device further comprises a first gear ring 321 and a reciprocating cap opening and closing mechanism 34, wherein the first gear ring 321 is arranged on the rotary support 32 and is coaxially arranged with the rotary support, and the first gear ring 321 is connected with the reciprocating cap opening and closing mechanism 34 and drives the reciprocating cap opening and closing mechanism 34 to move in a first reciprocating filling station, a barrel inlet station, a barrel outlet station and a last reciprocating filling station; alternatively, the reciprocating cap opening and closing mechanism 34 is provided with two, one reciprocating between the cap inlet station and the first reciprocating filling station for opening and placing the cap of the packaging barrel on the cap storage structure synchronous with the packaging barrel or on the return line reversely conveying the packaging barrel, and the other reciprocating between the last reciprocating filling station and the cap outlet station for removing the cap from the cap storage structure or the return line and connecting the cap to the mouth of the packaging barrel; the two reciprocating cap opening and closing mechanisms 34 are commonly connected to the first gear ring 321, and the two reciprocating cap opening and closing mechanisms 34 are driven by the first gear ring to move synchronously.

The return line is arranged coaxially with the large turntable but is turned in the opposite direction, and typically the return line has a lower turning speed than the large turntable, the ratio of the turning speeds being between 3/M and 4/M.

The device further comprises a second gear ring 322 and a reciprocating filling mechanism 33, wherein the second gear ring 322 is arranged on the rotary support 32 and is coaxially arranged with the rotary support, and the second gear ring 322 is connected with the reciprocating filling mechanism 33 and drives the reciprocating filling mechanism 33 to reciprocate at a reciprocating filling station between a first reciprocating filling station and a last reciprocating filling station.

The reciprocating switch cover mechanism and the reciprocating filling mechanism are respectively meshed with the gear ring through motor control gears, so that the gear ring is driven to rotate, and the reciprocating switch cover mechanism and the reciprocating filling mechanism are driven to rotate.

The rotary barrel feeding device 20 provided in this embodiment includes a barrel feeding rotary table 21, a barrel feeding rotary shaft 22 and a clamping rotary mechanism 23, wherein the barrel feeding rotary shaft 22 is arranged at the center of the barrel feeding rotary table 21, the clamping rotary mechanism 23 is connected to the top of the barrel feeding rotary shaft 22 so as to clamp the packaging barrel 70 below, the barrel feeding rotary table 21 drives the barrel feeding rotary shaft 22 to rotate, the clamping rotary mechanism 23 is provided with N barrel rotating stations arranged on a rotating frame 230 around the barrel feeding rotary shaft 22, wherein N is a natural number not less than 2, N is less than M, N is a divisor of M, and the rotating path lengths of two adjacent barrel rotating stations are equal to the rotating path lengths between two adjacent filling stations.

The barrel feeding rotary table 21 and the large rotary table 31 are meshed through gears; alternatively, when m=6 or 8, n=2, that is, the number of teeth of the large turntable 31 is 3 times or 4 times the number of teeth of the tub feeding turntable 21.

A first rotary driving mechanism 231, a first vertical driving mechanism 232, a recognition device 234 and a clamping mechanism 233 are arranged at each rotary barrel station, wherein the recognition device 234 is arranged on the clamping mechanism 233 and can recognize the barrel mouth downwards; the first vertical driving mechanism 232 is used for driving the clamping mechanism 233 to move in the vertical direction; the first rotation driving mechanism 231 is used for driving the clamping mechanism 233 to rotate.

The recognition device 234 is provided on the adjusting mechanism 2341 so that the position and recognition angle of the recognition device 234 can be adjusted.

The identification device 234 is disposed on the side of the gripping rotation mechanism 23 remote from the tub feeding shaft 22.

The clamping mechanism 233 comprises a top plate 2331, a second rotation driving mechanism 2332 and clamping jaws 2333 connected to two sides of the top plate 2331, wherein the second rotation driving mechanism is connected to the top plate 2331 and can drive the clamping jaws 2333 on two sides to move relatively, and the clamping jaws 2333 are connected to the top plate 2331 in a sliding connection mode.

The second rotary drive mechanism 2332 includes a motor drive pulley drive or a motor drive sprocket drive, and correspondingly, the clamping jaw 2333 is connected to a drive belt or chain.

A method of transferring packaging barrels from a barrel roller table 10 to a barrel station of a rotary filling machine 30 using a rotary barrel feeder 20, comprising:

the clamping rotating mechanism 23 is driven to rotate around the barrel feeding rotating shaft 22, and the rotating speed is kept unchanged;

when the first vertical driving mechanism 232 rotates to the position above the packaging barrel of the barrel feeding roller way 10, the first vertical driving mechanism 232 is controlled to lower the clamping mechanism 233 while rotating;

when the clamping jaw 2333 of the clamping mechanism 233 is lowered below the top surface of the packaging barrel, the clamping jaw 2333 is controlled to shrink, and when the clamping jaw is shrunk to clamp the outer wall of the packaging barrel, the rotating shaft center of the clamping mechanism 233 is just rotated to the top surface center of the packaging barrel;

then immediately controlling the first vertical driving mechanism 232 to lift upwards, so that the packaging barrel is separated from the barrel feeding roller way 10, and the whole barrel feeding device 20 is rotated continuously in the process;

meanwhile, the position of the bung is identified through the identification device 234, and when the position of the bung is at an angle A with the preset position, the first rotation driving mechanism 231 is used for controlling the clamping mechanism 233 to reversely rotate by the angle A, so that the position of the bung points to the preset position;

When the rotary barrel feeding device 20 drives the packaging barrel to rotate to a barrel feeding station which is about to reach the large rotary table 31, the first vertical driving mechanism 232 controls the packaging barrel to be put down, and when the packaging barrel is put down to be in contact with the barrel feeding station of the large rotary table 31, the second rotary driving mechanism 2332 immediately controls the clamping jaw 2333 to be opened quickly, and meanwhile, the first vertical driving mechanism 232 controls the clamping mechanism 233 to ascend, so that the packaging barrel is transported from the barrel feeding roller table 10 to the barrel feeding station of the rotary filling machine 30.

During the transferring process, the large turntable 31 drives the barrel feeding turntable 21 to rotate at a constant speed.

The number of the clamping jaws 2333 can be two or three.

the barrel opening at the top of the packaging barrel conveyed by the barrel feeding roller way 10 is identified by the barrel rotating device 60, the barrel opening is rotated to a preset direction, and then the packaging barrel is continuously conveyed forwards by the barrel feeding roller way 10;

clamping the packaging barrel by a clamping mechanism 233 in the process of rotation by a clamping rotating mechanism 23 of the rotary barrel feeding device 20, and lifting the packaging barrel by a first vertical driving mechanism 232;

The recognition device 234 of the clamping and rotating mechanism 23 recognizes the bung hole, and the orientation of the bung hole is adjusted through the first rotating driving mechanism 231 in the process of rotating the clamping and rotating mechanism 23 so as to be aligned to the preset orientation;

when the packaging barrel is about to reach the barrel feeding station of the large turntable 31, the first vertical driving mechanism 232 is controlled to descend the packaging barrel to the barrel feeding station, and the clamping mechanism 233 releases the clamping of the packaging barrel.

The rotary filling machine 30 further includes:

the reciprocating cap opening and closing mechanism 34 is connected to the first gear ring 321 of the rotary support 32, the first gear ring 321 and the rotary support 32 are coaxially arranged, and the reciprocating cap opening and closing mechanism 34 can reciprocate between the first reciprocating filling station, the barrel inlet station, the barrel outlet station and the last reciprocating filling station by taking the rotary support 32 as a center.

The reciprocating switch cover mechanism 34 includes:

a cap opening and closing device 341 capable of rotating to open and close the cap;

a second vertical driving mechanism 342 capable of driving the opening and closing cap 341 to move in a vertical direction;

a third rotation driving mechanism 343, which is meshed with the first gear ring for driving the first gear ring and can drive the reciprocating switch cover mechanism 34 to reciprocate around the rotation support 32 as a whole;

the capping device 344 is disposed at a side of the cap opening and closing device 341 and has an elastic pressing head, and the elastic pressing head has a lower height than the cap opening and closing device 341 so that the elastic pressing head can contact with the top of the packaging barrel and press the packaging barrel before the cap opening and closing device 341.

The cap opening and closing device 341 uses a cap screwing and quick-changing structure and a cap opening and closing robot as disclosed in CN113998646a, or uses a gas claw and cap opening and closing robot with a three-claw structure as disclosed in CN113929033a, or uses a cap screwing device and a related cap opening and closing technical scheme in the cap opening and closing robot as disclosed in CN113753816 a.

In a rotary filling line, a method of opening and closing a package utilizing a reciprocating lid opening and closing mechanism 34, comprising:

when the barrel feeding rotary table 21 places the packaging barrel at a barrel feeding station, the reciprocating cap opening and closing mechanism 34 and the large rotary table 31 are controlled to synchronously rotate in the forward direction, and the barrel cover is opened before the packaging barrel reaches the next filling station;

Then, it is judged whether the number of the packaging barrels on the large turntable 31 satisfies the cap storage condition:

if the cap storage condition is met, controlling the reciprocating cap opening and closing mechanism 34 to rapidly reversely rotate to the cap storage device 35, and placing the barrel cap on the cap storage device 35;

if the cap storage condition is not met, controlling the reciprocating cap opening and closing mechanism 34 to rapidly reversely rotate to a packaging barrel passing through the last reciprocating filling station, then controlling the reciprocating cap opening and closing mechanism 34 and the large turntable 31 to synchronously rotate in the forward direction, and covering the barrel cap on the packaging barrel before the packaging barrel reaches the barrel discharging station;

then, it is judged whether the number of the packaging barrels on the large turntable 31 satisfies the cap taking condition:

if the cap taking condition is satisfied, the reciprocating cap opening and closing mechanism 34 is controlled to take a cap from the cap storing device 35, then the cap is quickly reversely rotated to a packaging barrel passing through the last reciprocating filling station, the reciprocating cap opening and closing mechanism 34 and the large turntable 31 are controlled to synchronously rotate in the forward direction, and the barrel cap is covered on the packaging barrel before the packaging barrel reaches the barrel discharging station.

When the cap storage condition is not satisfied, the cap storage device 35 is controlled to retract to avoid the reciprocating cap opening and closing mechanism 34.

The cover storage conditions are as follows:

The cover taking conditions are as follows:

No load at the infeed station means that no new packaging containers are located at the infeed station when a predetermined time interval is reached.

A cover storage device 35 is arranged between the barrel inlet station and the barrel outlet station, and the cover storage device 35 is connected to the rotary support 32 and can move in a telescopic manner relative to the rotary support 32 so as to avoid the reciprocating cover opening and closing mechanism 34.

The cap storage device 35 is provided with the same number of cap storage positions as the reciprocating filling stations, namely M-2 cap storage positions.

The cover storage device 35 is connected to the rotating support 32 through a telescopic mechanism 351, the telescopic mechanism comprises a telescopic bracket, a telescopic cylinder and a linear guide rail, the telescopic bracket is fixedly connected to the rotating support 32, the linear guide rail is arranged on the telescopic bracket, and the telescopic cylinder drives the cover storage device 35 to move along the linear guide rail.

A method of opening and closing a package utilizing two reciprocating lid opening and closing mechanisms 34 on a rotary filling line, comprising:

when the barrel feeding rotary table 21 places the packaging barrel at the barrel feeding station, controlling a reciprocating cap opening and closing mechanism 34 to synchronously rotate with the large rotary table 31 and the packaging barrel on the large rotary table, opening the barrel cover before the packaging barrel reaches the next reciprocating filling station, placing the barrel cover on a return line, and returning the reciprocating cap opening and closing mechanism 34 to the barrel feeding station again to wait for the next packaging barrel;

the return line is conveyed along the opposite direction of the large turntable and reaches the position point of the last reciprocating filling station between the last reciprocating filling station and the barrel discharging station, but does not include the position point of the barrel discharging station before the packaging barrel positively rotates on the large turntable 31 to the last reciprocating filling station;

the lid is then removed from the return line by another reciprocating lid opening and closing mechanism 34 and rotates in unison with the package and closes the lid before the package reaches the ejection station, and the reciprocating lid opening and closing mechanism returns to the lid removal position to await the next lid.

when the barrel feeding rotary table 21 places the packaging barrel at the barrel feeding station, controlling a reciprocating cap opening and closing mechanism 34 to synchronously rotate with the large rotary table 31 and the packaging barrel on the large rotary table 31 in the forward direction, opening the barrel cover before the packaging barrel reaches the next reciprocating filling station, placing the barrel cover on a cap storing structure on the large rotary table and synchronously transferring the packaging barrel, and returning the reciprocating cap opening and closing mechanism 34 to the barrel feeding station again to wait for the next packaging barrel;

Each filling gun on the reciprocating filling mechanism 33 is provided with a driving mechanism in the vertical direction; the reciprocating filling mechanism 33 is connected to a second gear ring 322 of the rotary support 32, the second gear ring 322 is coaxially arranged with the rotary support 32, and the reciprocating filling mechanism 33 can reciprocate between the first and last reciprocating filling stations with the rotary support 32 as a center.

continuously conveying the packaging barrels by a barrel feeding roller way 10;

when the packaging barrel advances to the barrel rotating device 60, the barrel opening of the packaging barrel on the barrel feeding roller way 10 is rotated to a preset direction by the barrel rotating device 60, and is conveyed to a barrel feeding station on the large turntable 31 of the rotary filling machine by the rotary barrel feeding device 20;

opening the barrel cover of the packaging barrel by utilizing a reciprocating cover opening and closing mechanism 34, and placing the barrel cover on a cover storing device 35 or moving the barrel cover to the last reciprocating filling station;

after the packaging barrel rotates to a first reciprocating filling station under the drive of the large turntable 31, the packaging barrel is filled by a first filling gun of a reciprocating filling mechanism 33;

after the packaging barrel is driven by the large turntable 31 to rotate to a second reciprocating filling station, the packaging barrel is filled by a second filling gun of the reciprocating filling mechanism 33, and at the moment, the first filling gun is reset to the first reciprocating filling station to fill the next packaging barrel;

After the packaging barrel is driven by the large turntable 31 to rotate to a third reciprocating filling station, the packaging barrel is filled by a third filling gun of the reciprocating filling mechanism 33, and at the moment, the first filling gun and the second filling gun are respectively reset to the first reciprocating filling station and the second reciprocating filling station;

after the packaging barrel is transported to a fourth reciprocating filling station under the drive of the large turntable 31, the barrel cover is covered on the packaging barrel by a reciprocating cover opening and closing mechanism 34;

when the packaging barrel reaches the barrel discharging station under the drive of the large rotary table 31, the rotary barrel discharging device 40 transfers the packaging barrel from the large rotary table 31 to the barrel discharging roller way 50, so that filling is completed.

The rotary barrel discharging device 40 comprises a barrel discharging rotary table, a barrel discharging rotary shaft and a clamping rotary mechanism, wherein the clamping rotary mechanism is provided with N barrel rotating stations arranged on a rotary frame around the barrel discharging rotary shaft, N is a natural number not less than 2, N is less than M, and N is a divisor of M; the length of the rotating path of the two adjacent rotary barrel stations is equal to that of the rotating path between the two adjacent filling stations.

The barrel discharging turntable and the large turntable are meshed through gears, and the ratio between the diameters of the barrel discharging turntable and the large turntable is N/M; alternatively, when m=6 or 8, n=2, i.e., the number of teeth of the large turntable is 3 times or 4 times the number of teeth of the tub exit turntable.

A third rotary driving mechanism, a third vertical driving mechanism and a clamping mechanism are arranged at each rotary barrel station, and the third vertical driving mechanism is used for driving the clamping mechanism to move in the vertical direction; the third rotation driving mechanism is used for driving the clamping mechanism to rotate.

The rotary barrel device 40 may be provided with fewer identification means than the rotary barrel device 20.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A rotary filling line, comprising:

wherein M-2 reciprocating filling stations are formed between the barrel inlet station and the barrel outlet station along the rotation direction of the large turntable (31); correspondingly, a reciprocating filling mechanism (33) is arranged on the rotary support (32), the reciprocating filling mechanism (33) can reciprocate in a reciprocating filling station area by taking the rotary support (32) as a rotation center, the reciprocating filling mechanism (33) is provided with M-3 filling guns (331), one filling station is arranged between every two adjacent filling guns (331), and each filling gun (331) reciprocates between two adjacent filling stations under the driving of the reciprocating filling mechanism (33);

the rotary filling machine (30) further comprises:

the reciprocating switch cover mechanism (34) is connected to a first gear ring (321) of the rotary support (32), the first gear ring (321) and the rotary support (32) are coaxially arranged, and the reciprocating switch cover mechanism (34) can reciprocate between a first reciprocating filling station, a barrel inlet station, a barrel outlet station and a last reciprocating filling station by taking the rotary support (32) as a center;

The reciprocating cap opening and closing mechanism (34) includes:

the third rotary driving mechanism (343) is in meshed transmission with the first gear ring, and the third rotary driving mechanism (343) drives the first gear ring so as to drive the reciprocating switch cover mechanism (34) to reciprocate around the rotary support (32) as a whole;

the capping device (344) is arranged at the side of the cap opening and closing device (341) and is provided with an elastic pressure head, and the height of the elastic pressure head is lower than that of the cap opening and closing device (341) so that the elastic pressure head can contact with the top of the packaging barrel and press the packaging barrel before the cap opening and closing device (341);

a cover storage device (35) is arranged between the barrel inlet station and the barrel outlet station, and the cover storage device (35) is connected to the rotary support (32) and can move in a telescopic manner relative to the rotary support (32) seat so as to avoid the reciprocating cover opening and closing mechanism (34);

2. The rotary filling line according to claim 1, wherein,

further comprises:

3. The rotary filling line according to claim 1, wherein,

4. A rotary filling line according to claim 3, wherein,

the barrel feeding rotary table (21) is meshed with the large rotary table (31) through gears;

a first rotary driving mechanism (231), a first vertical driving mechanism (232), a recognition device (234) and a clamping mechanism (233) are arranged at each barrel rotating station, wherein the recognition device (234) is arranged on the clamping mechanism (233) and can recognize a barrel opening downwards; the first vertical driving mechanism (232) is used for driving the clamping mechanism (233) to move in the vertical direction; the first rotation driving mechanism (231) is used for driving the clamping mechanism (233) to rotate;

the identification device (234) is arranged on the adjusting mechanism (2341) so that the position and the identification angle of the identification device (234) can be adjusted;

the identification device (234) is arranged on one side of the clamping rotating mechanism (23) far away from the barrel feeding rotating shaft (22);

the clamping mechanism (233) comprises a top plate (2331), a second rotary driving mechanism (2332) and clamping jaws (2333) connected to two sides of the top plate (2331), wherein the second rotary driving mechanism is connected to the top plate (2331) and can drive the clamping jaws (2333) on two sides to move relatively, and the clamping jaws (2333) are connected to the top plate (2331) in a sliding connection mode;

5. The rotary filling line according to claim 4, wherein,

when m=6 or 8, n=2, that is, the number of teeth of the large turntable (31) is 3 times or 4 times the number of teeth of the tub feeding turntable (21).

6. The rotary filling line according to claim 1, wherein,

the cover storage device (35) is provided with the cover storage positions with the same number as that of the reciprocating filling stations, namely M-2 cover storage positions;

7. The rotary filling line according to claim 1, wherein,

the rotary barrel discharging device (40) comprises a barrel discharging rotary table, a barrel discharging rotary shaft and a clamping rotary mechanism, wherein the clamping rotary mechanism is provided with N barrel rotating stations arranged on a rotary frame around the barrel discharging rotary shaft, N is a natural number not less than 2, N is less than M, and N is a divisor of M; the length of the rotating path of the two adjacent rotating barrel stations is equal to that of the rotating path between the two adjacent filling stations;

The barrel discharging turntable and the large turntable are meshed through gears, and the ratio between the diameters of the barrel discharging turntable and the large turntable is N/M.

8. The rotary filling line according to claim 7, wherein,

when m=6 or 8, n=2, that is, the number of teeth of the large turntable is 3 times or 4 times the number of teeth of the tub-out turntable.