Multi-head weighing filling machine

Abstract

The invention relates to the technical field of automatic filling machines, and discloses a multi-head weighing and filling machine which comprises a first flexible transmission line, a second flexible transmission line and a weighing and filling mechanism. The weighing and filling mechanism comprises a weighing module and a filling module which are arranged at a weighing and filling station; a bottle support is arranged on the first flexible transmission line, and a bottle body is arranged on the bottle support; the bottle bodies and the bottle supports on the first flexible conveying line are transferred to the weighing module of the weighing and filling station through a first transferring assembly, and the bottle bodies on the weighing and filling station are filled through the filling module; and after filling of the filling module is completed, the bottle bodies and the bottle supports are transferred to the second flexible conveying line through a second transferring assembly. Compared with the prior art, bottle bodies are conveyed on the first flexible conveying line and the second flexible conveying line, the weighing function is achieved while filling is achieved at the weighing and filling station, and detection errors caused by bottle body errors can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automatic filling machines, and in particular to a multi-head weighing filling machine. Background Art

[0002] In recent years, more and more high-end daily chemical products are packaged in colorful bottles, which greatly improves the packaging grade of the products and is more popular.

[0003] During the production process of bottled products, the filling operation needs to be completed. However, during the production process, the weight of the bottle body varies greatly, that is, the bottle body itself has a large error. Therefore, after the filling is completed, how to detect whether the filling material meets the requirements and whether the filling weight is qualified is very difficult. If the final bottle product weight is used as the measurement standard, the error in the bottle body itself will lead to inaccurate detection of the filling material. During the filling process, the overall weight needs to be measured in real time. The weight of the final filled product can be obtained by subtracting the weight of the empty bottle from the overall weight. The final weight of the filled product is used for detection, so that the qualified rate of the detection will not have errors.

[0004] Therefore, there is an urgent need to design a filling machine that can detect the filling weight in real time while filling. Summary of the invention

[0005] Purpose of the invention: In view of the problems existing in the prior art, the present invention provides a multi-head weighing and filling machine, which can reduce the detection error caused by the bottle body error by transmitting the bottle body on the first flexible transmission line and the second flexible transmission line and realizing the weighing function at the weighing and filling station.

[0006] Technical solution: The present invention provides a multi-head weighing and filling machine, comprising a first flexible transmission line, a second flexible transmission line and a weighing and filling mechanism; The weighing and filling mechanism comprises a weighing module and a filling module arranged at the weighing and filling station; The first flexible transmission line is provided with a bottle holder, and the bottle body is arranged on the bottle holder; the bottle body and the bottle holder on the first flexible transmission line are transferred to the weighing module of the weighing and filling station through the first transfer assembly, and the filling module fills the bottle body on the weighing and filling station; After the filling module completes the filling, the bottle body and the bottle holder are transferred to the second flexible transmission line through the second transfer assembly.

[0007] Furthermore, a bottle cleaning station is provided at the front end of the weighing and filling station. The bottle cleaning station is provided at the end of the first flexible transmission line, and a bottle blowing and suction mechanism is provided on one side thereof for blowing and sucking air on the bottle mouth of the bottle to complete the cleaning.

[0008] Furthermore, the bottle blowing and suction mechanism includes a blower and a vacuum pump filter. The blower and the vacuum pump filter are connected through a main air pipe. The main air pipe is connected to a plurality of bronchial tubes. The end of each bronchial tube is connected to a blowing and suction nozzle facing the bottle mouth of the bottle body at the bottle cleaning station.

[0009] Furthermore, each of the blowing and suction nozzles is arranged on a first connecting frame, and the first connecting frame is also arranged on a first longitudinal driving assembly.

[0010] Furthermore, the first transfer assembly includes a first receiving platform disposed on one side of the first flexible transmission line, the first receiving platform extends to the weighing and filling station, a plurality of pairs of first push plates are arranged on the first receiving platform at intervals, the pairs of the first push plates are arranged on the first transverse driving assembly, and the first transverse driving assembly drives the first push plates to move along the extension direction of the first receiving platform to the weighing and filling station; A second push plate is also provided on the other side of the first flexible transmission line, and a second transverse driving assembly is provided on the second push plate, and the second transverse driving assembly drives the second push plate to push the bottle holder to move horizontally to the first receiving platform in a direction perpendicular to the first flexible transmission line; The first transfer assembly also includes a third push plate arranged on one side of the first receiving platform opposite to the weighing and filling station, and a third transverse drive assembly is arranged on the third push plate. The third transverse drive assembly drives the third push plate to push the bottle holder to move toward the weighing and filling station.

[0011] Further, the first receiving platform is provided with a plurality of pairs of first push plates at intervals, and a bottle holder spacing adjustment assembly is also provided on the plurality of pairs of first push plates, and the bottle holder spacing adjustment assembly includes a fourth transverse slide rail and a spacing adjustment cylinder provided on the first transverse driving assembly, and each pair of first push plates slides on the fourth transverse slide rail through a ninth slider, and a first connecting rod is provided through the two first push plates provided between adjacent bottle molds, a first push plate base is fixed on one side of the first connecting rod, and another first push plate base is provided on the other side of the first connecting rod with a certain sliding spacing, and the first push plate bases are fixed on the corresponding fourth transverse slide rail; The spacing adjustment cylinder is arranged on the first transverse driving assembly and a fourth push plate is arranged at its execution end. The fourth push plate is arranged on the ninth slider inside the first first push plate at the end of the first receiving platform. The spacing adjustment cylinder drives the fourth push plate to drive the first push plate to move to one side.

[0012] Furthermore, the second transfer assembly includes a second receiving platform arranged on the other side of the weighing and filling station, the second receiving platform is arranged on a fifth transverse drive assembly, the fifth transverse drive assembly drives the second receiving platform to move away from the weighing and filling station, and a sixth transverse drive assembly is arranged on one side of the second receiving platform, the sixth transverse drive assembly is arranged on a fifth push plate, and the sixth transverse drive assembly drives the fifth push plate to push the bottle tray on the second receiving platform to the second flexible transmission line along the extension direction of the second receiving platform.

[0013] Furthermore, the second receiving platform is rotatably connected to a flexible limiter on the side close to the weighing and filling station, and an elastic member is connected between the lower end of the flexible limiter and the second receiving platform. The height of the flexible limiter is higher than the surface of the second receiving platform and the side close to the weighing and filling station is an outer arc surface.

[0014] Further, the weighing module includes a weighing platform; the weighing and filling station is provided with a third receiving platform, and the third receiving platform is provided with a second longitudinal driving component to drive the third receiving platform to adjust the height up and down; The third receiving platform is provided with a plurality of baffles at intervals, and a plurality of through holes are provided on the third receiving platform between adjacent baffles. The weighing platform is provided between two adjacent baffles on the upper surface of the third receiving platform through a second connecting rod which passes through the through holes, and a weighing component is connected to the lower end of the second connecting rod; The height of the weighing platform is smaller than the height of the first receiving platform.

[0015] Furthermore, the filling module includes a main filling pipe, a plurality of filling heads and a barrel. The barrel is connected to the main filling pipe through a servo motor and a gear pump. The main filling pipe is connected to a plurality of filling heads through a plurality of connecting ports. The plurality of filling heads are directly opposite to the bottle mouth position on the weighing and filling station, and the filling head is also provided with a third longitudinal drive assembly through a second connecting frame, and the third longitudinal drive assembly drives the filling head to move up and down.

[0016] Furthermore, the second flexible transmission line is divided into an upper transmission line and a lower transmission line, which are flexibly connected. The upper transmission line receives the bottle body and its bottle tray transferred by the second transfer component, and cyclically transmits them to the lower transmission line. A third transfer component is also arranged between the lower transmission line and the first flexible transmission line, and the third transfer component transfers the empty bottle tray to the first flexible transmission line.

[0017] Further, the third transfer assembly includes a fourth receiving platform, the fourth receiving platform is arranged on one side of the lower transmission line, a sixth push plate is arranged on the other side of the lower transmission line and is directly opposite to the bottle holder on the lower transmission line, the sixth push plate is arranged with a seventh transverse drive assembly, and the seventh transverse drive assembly drives the sixth push plate to push the bottle holder from the lower transmission line to the fourth receiving platform; The third transfer assembly also includes a fourth longitudinal drive assembly that drives the fourth receiving platform up and down; The third transfer assembly also includes a seventh push plate disposed on one side of the first flexible transmission line, and an eighth transverse drive assembly is disposed on the seventh push plate to drive the seventh push plate to push the bottle tray on the fourth receiving platform to the first flexible transmission line.

[0018] Furthermore, a vertical side baffle is provided on the side of the fourth receiving platform facing the lower transmission line, and the vertical side baffle is controlled by a lifting cylinder.

[0019] Beneficial Effects

[0020] 1. The present invention designs a first flexible transmission line and a second flexible transmission line, and the bottle holder and the bottle body on the first flexible transmission line are transferred to the weighing and filling station through the first transfer component, so that filling and weighing can be achieved at the same time. Traditionally, filling on a flexible transmission line can achieve filling, but it is impossible to achieve weighing while filling. In this application, the weighing and filling station is separated from the first flexible transmission line and the second flexible transmission line, and the weighing and filling are not completed on the transmission line. The bottle holder and the bottle body are transferred by the first transfer component, and after the weighing and filling are completed, the transfer of the second flexible transmission line is completed by the second transfer component. Under the premise of not affecting the overall filling efficiency, the error rate of the filled product can be reduced.

[0021] 2. In order to improve the inspection pass rate, the present invention needs to keep the bottle clean before filling and weighing to prevent the dust in the bottle from affecting the quality of the filled product and the filling inspection pass rate. Therefore, a bottle cleaning station is designed before filling and weighing. After the vacuum pump filter is filtered by the blower, the bottle is blown up and sucked, so that the bottle can be preliminarily cleaned. And the blowing and suction nozzle is set on the first longitudinal drive assembly, which can drive the blowing and suction nozzle to move up and down to adapt to different bottle heights.

[0022] 3. The first transfer assembly designed in the present invention includes three stages. One stage is to transfer from the first flexible transmission line to the first receiving platform, which is achieved by driving the second push plate through the second transverse drive assembly; the second stage is to transfer from one end of the first receiving platform (facing the bottle cleaning station) to the other end of the first receiving platform (facing the weighing and filling station), which is achieved by driving the first transverse drive assembly to drive the first push plate; the third stage is to transfer from the first receiving platform (facing the weighing and filling station) to the weighing and filling station, which is achieved by driving the third push plate through the third transverse drive assembly. This process does not affect the cleaning of the bottle at the front end, nor does it affect the weighing and filling at the rear end. After the front bottle is cleaned, it is transferred to another station under the action of the first transfer assembly, and the cleaning station continues the next round of cleaning. During the transfer of the bottle by the first transfer assembly, the latter weighing and filling station is still weighing and filling, which does not affect the overall filling efficiency, and can also move the weighing and filling out of the transmission line.

[0023] 4. Because there cannot be any contact between adjacent bottle trays during the weighing and filling process, otherwise it will affect the weighing accuracy of the entire weighing module. During the transmission process of the first flexible transmission line, the bottle trays are in contact with each other. During the process of the first transfer component transferring the bottle tray to the first receiving platform, the bottle trays are still in contact with each other. After arriving at the weighing and filling station, it is necessary to ensure that there is a gap between adjacent bottle trays. After the bottle tray is transferred to the first receiving platform, the bottom end of the bottle tray is located between a pair of first push plates. At this time, there is no gap between adjacent bottle trays. The present invention designs a bottle holder spacing adjustment component, and the fourth push plate pushes the first push plate on one side to move to one side by telescoping the spacing adjustment cylinder. During the movement, because there is a sliding spacing between the first push plate base on one side and the first connecting rod, the fourth push plate drives the first push plate and the ninth slider to move to one side. The first ninth slider slides first, and the sliding drives the first connecting rod to slide to one side, so that the first push plate base of the sliding sleeve slides on the first connecting rod, so that the first and second pairs of first push plates are pulled apart by a certain distance, and so on, so that a certain length of gap is left between adjacent bottle holders. In this way, when the whole is transferred to the other side of the first receiving platform, there is a gap between adjacent bottle holders.

[0024] 5. The purpose of the second transfer assembly designed in the present invention is to transfer the bottle holder and bottle body of the weighing and filling station to the second flexible transmission line. For this purpose, a second receiving platform is designed. After the weighing and filling station completes the weighing and filling, the bottle holder and bottle body on the first receiving platform are transferred to the weighing and filling station under the action of the third push plate driven by the third transverse drive assembly, so the bottle holder and bottle body of the weighing and filling station can be pushed to the second receiving platform, and the bottle body transfer can be achieved without additional power. Under the action of the fifth transverse drive assembly, the second receiving platform is away from the weighing and filling station, and the bottle holder on the second receiving platform is transferred to the second flexible transmission line under the action of the fifth push plate driven by the sixth transverse drive assembly.

[0025] 6. After the bottle holder and the bottle body of the weighing and filling station are transferred to the second receiving platform, the second receiving platform needs to be away from the weighing and filling station. During this process, it is necessary to ensure the stability of the bottle holder and the bottle body to prevent the bottle holder from falling from the second receiving platform. The applicant has designed a flexible limiter. Because of the design of the outer arc surface, it plays a guiding role in the transfer process. Under the squeezing action of the bottle holder, the flexible limiter rotates on the second receiving platform to achieve downward rotation. After the bottle holder is transferred to the second receiving platform, the flexible limiter returns to its original position under the action of the elastic member. At this time, the height of the flexible limiter is higher than the surface of the second receiving platform, and it plays a limiting role during the movement of the second receiving platform.

[0026] 7. The weighing platform designed by the present invention has no contact with the working surface of the frame, and is set by a through hole that runs through the third receiving platform. Such a setting of the weighing platform avoids the weighing influence caused by the vibration of the working surface of the frame. In addition, the third receiving platform is designed to be able to rise and fall, and the purpose is that when the bottle holder needs to be transferred to the weighing and filling station, the bottle holder should not contact the weighing platform during the transfer process, because if the bottle holder is in friction contact with the weighing platform during the transfer process, it will affect the stability of the weighing platform, and further affect the accuracy of the weighing platform. Therefore, in the process of transferring the bottle holder, the third receiving platform needs to be raised by the second longitudinal drive component. At this time, when the bottle holder is transferred to the third receiving platform, the entire bottle holder is supported by the adjacent baffle and will not contact the weighing platform below. When weighing and filling start, the third receiving platform is driven to descend by the second longitudinal drive component. At this time, the entire bottle holder falls on the weighing platform. After the filling and weighing are completed, the third receiving platform also needs to rise to lift the entire bottle holder, thereby realizing the following transfer.

[0027] 8. The filling head of the filling module designed in the present invention is designed on the third longitudinal drive assembly, which can realize the height adjustment of the filling head, so as to facilitate adaptation to products of different heights.

[0028] 9. In order to realize the recycling of bottle trays, the present invention completes the closed-loop docking of the first flexible transmission line and the second flexible transmission line, and designs the second flexible transmission line into two layers, the upper layer docking with the third receiving platform. After the filling is completed, the bottle body is manually taken out from the upper transmission line, and the bottle tray is cyclically transferred to the lower transmission line. A third transfer component is designed between the lower transmission line and the first flexible transmission line. The third transfer component first transfers the empty bottle tray on the lower transmission line to the fourth receiving platform, and completes the height transfer through the lifting of the fourth receiving platform. After the height transfer is completed, the seventh push plate is driven by the eighth horizontal drive component to push the empty bottle tray to the first flexible transmission line. In this way, the purpose of circular transmission can be achieved, which not only saves the site of the production line, but also improves the utilization rate of the bottle tray.

[0029] 10. During the lifting and lowering process of the fourth receiving platform, a vertical side baffle is set on one side of the fourth receiving platform. When the lower transmission line is transferred to the fourth receiving platform, the vertical side baffle is located below the fourth receiving platform. When the transfer is completed and lifting and lowering is required, the vertical side baffle is adjusted to rise, thereby providing a limit protection for one side of the fourth receiving platform.

[0030] 11. Finally, the weighing module designed in the present application has no contact or connection with the work surface of the rack when working. The weighing platform of the weighing module can be connected to the weighing elements through a second connecting rod, and the weighing elements are fixed to the ground through a bracket, etc. However, during transportation, the weighing elements at the lower end of the weighing platform of the weighing module of the present invention can be connected to the work surface of the rack with fasteners through a connecting piece, which is convenient for transportation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the weighing and filling station and the bottle washing station; Figure 3 This is a schematic diagram of the back structure of the bottle cleaning station of the present invention; Figure 4 It is a schematic diagram of the structure of the first transfer assembly of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of point A; Figure 6 It is a schematic structural diagram of the third lateral drive assembly of the first transfer assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the weighing module of the present invention; Figure 8 It is a schematic diagram of the structure of the second transfer assembly of the present invention; Fig. 9 for Figure 8 Enlarged view of point B in the middle; Fig.10 It is a schematic diagram of the structure of the third transfer assembly of the present invention; Fig.11 It is a schematic diagram of the vertical side baffle structure on one side of the fourth receiving platform of the present invention.

[0032] Among them, 1-first flexible transmission line, 2-second flexible transmission line, 201-upper transmission line, 202-lower transmission line, 3-weighing and filling mechanism, 301-weighing platform, 302-third receiving platform, 303-baffle, 304-second connecting rod, 305-second cylinder, 306-main filling pipeline, 307-filling head, 308-second connecting frame, 309-third cylinder, 310-through hole, 311-weighing components, 4-bottle blowing and suction mechanism, 401-blower, 402-vacuum pump filter, 403-main air pipe, 404-bronchial tube, 405-blowing and suction nozzle, 4 ...6-filling head, 306-filling head, 306- 6-first connecting frame, 407-first longitudinal slide rail, 5-first transfer assembly, 501-first receiving platform, 502-first push plate, 503-second push plate, 504-third push plate, 505-first transverse slide rail, 506-first slider, 507-first drive motor, 508-first driving wheel, 509-first driven wheel, 510-first belt, 511-second transverse slide rail, 512-second slider, 513-second drive motor, 514-second driving wheel, 515-second driven wheel, 516-second belt, 517-first lead screw, 518-third transverse slide rail, 5 19-third slider, 520-third drive motor, 521-third driving wheel, 522-third driven wheel, 523-third belt, 524-second lead screw, 525-fourth transverse slide rail, 526-spacing adjustment cylinder, 527-ninth slider, 528-first connecting rod, 529-first push plate base, 530-block, 531-fourth push plate, 6-second transfer assembly, 601-second receiving platform, 602-fifth push plate, 603-fifth transverse slide rail, 604-fifth slider, 605-first cylinder, 606-sixth transverse slide rail, 607-sixth slider, 608- The sixth driving motor, 609-the sixth driving wheel, 610-the sixth driven wheel, 611-the sixth belt, 612-flexible limiter, 613-elastic member, 7-the third transfer assembly, 701-the fourth receiving platform, 702-the sixth push plate, 703-the seventh push plate, 704-the seventh transverse slide rail, 705-the fourth cylinder, 706-the fifth cylinder, 707-the linear guide rail, 708-the eighth transverse slide rail, 709-the eighth slider, 710-the sixth cylinder, 711-the vertical side baffle, 712-the lifting cylinder, 713-the protective shell, 8-the bottle holder, 9-the bottle body, 10-the rack work surface. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0034] See also Figure 1The present invention discloses a multi-head weighing and filling machine. This embodiment is described by taking a seven-head weighing and filling machine as an example, and includes a first flexible transmission line 1, a second flexible transmission line 2, and a weighing and filling mechanism 3. The weighing and filling mechanism 3 includes a weighing module and a filling module arranged at a weighing and filling station. A bottle holder 8 is arranged on the first flexible transmission line 1, and a bottle body 9 is arranged on the bottle holder 8; the bottle body 9 and the bottle holder 8 on the first flexible transmission line 1 are transferred to the weighing module of the weighing and filling station through a first transfer component 5, and the filling module fills the bottle body 9 on the weighing and filling station. After the filling module completes the filling, the bottle body 9 and its bottle holder 8 are transferred to the second flexible transmission line 2 through a second transfer component 6.

[0035] See also Figure 2 , Figure 3 A bottle cleaning station is also provided at the front end of the weighing and filling station. The bottle cleaning station is provided at the end of the first flexible transmission line 1, and a bottle blowing and suction mechanism 4 is provided on one side thereof, which is used to blow and suck air to the bottle mouth of the bottle body 9 to complete the cleaning. The bottle blowing and suction mechanism 4 includes a blower 401 and a vacuum pump filter 402. The blower 401 and the vacuum pump filter 402 are connected through a main air pipe 403. The main air pipe 403 is connected to a plurality of bronchial tubes 404. The end of each bronchial tube 404 is connected to a blowing and suction nozzle 405 facing the bottle mouth of the bottle body 9 of the bottle cleaning station. Each blowing and suction nozzle 405 is provided on a first connecting frame 406, and the first connecting frame 406 is also provided on a first longitudinal driving assembly.

[0036] In this embodiment, the first longitudinal driving assembly includes a first longitudinal slide rail 407 , and the first connecting frame 406 is slidably disposed on the first longitudinal slide rail 407 .

[0037] See also Figure 4~Figure 6 The first transfer component 5 includes a first receiving platform 501 arranged on one side of the first flexible transmission line 1, the first receiving platform 501 extends to the weighing and filling station, a first push plate 502 is arranged on the first receiving platform 501, and the first push plate 502 is arranged on the first transverse driving component. The first transverse driving component drives the first push plate 502 to move along the extension direction of the first receiving platform 501 to the weighing and filling station.

[0038] A second push plate 503 is also provided on the other side of the first flexible transmission line 1 , and a second transverse driving assembly is provided on the second push plate 503 . The second transverse driving assembly drives the second push plate 503 to push the bottle holder 9 to move horizontally to the first receiving platform 501 in a direction perpendicular to the first flexible transmission line 1 .

[0039] Note that in this embodiment, in order to improve the overall working efficiency, the first longitudinal driving assembly and the bottle blowing and suction mechanism 4 thereon are also arranged on the second transverse driving assembly as a whole. When the bottle blowing and washing mechanism is working, the second transverse driving assembly is turned on, and while blowing and suctioning, the second push plate 503 pushes the bottle holder 8 on the first flexible transmission line 1 to be transferred to the first receiving platform 501.

[0040] The first transfer assembly also includes a third push plate 504 disposed on one side of the first receiving platform 501 opposite to the weighing and filling station. The third push plate 504 is provided with a third transverse drive assembly, which drives the third push plate 504 to push the bottle holder 8 to move toward the weighing and filling station.

[0041] In this embodiment, a plurality of pairs of first push plates 502 are spaced apart on the first receiving platform 501. In this embodiment, the bottle holder 8 has a large width in the middle and a small width at the bottom. The spacing between the pair of first push plates 502 matches the width of the bottom of the bottle holder.

[0042] A bottle holder spacing adjustment assembly is also provided on several pairs of first push plates 502, and the bottle holder spacing adjustment assembly includes a fourth transverse slide rail 525 and a spacing adjustment cylinder 526 arranged on the first transverse driving assembly. Each pair of first push plates 502 slides on the fourth transverse slide rail 525 through a ninth slider 527. A first connecting rod 528 is penetrated through the two first push plates 502 arranged between adjacent bottle molds 8. A first push plate base 529 is fixed on one side of the first connecting rod 528, and another first push plate base 529 is slidably sleeved on the other side with a certain sliding spacing. The first push plate bases 529 are all fixed on the corresponding fourth transverse slide rail 525.

[0043] The spacing adjustment cylinder 526 is arranged on the first horizontal driving assembly and a fourth push plate 531 is arranged at its execution end. The fourth push plate 531 is arranged on the ninth slider 527 on the inner side of the first push plate 502 at the end of the first receiving platform 501. The spacing adjustment cylinder 526 drives the fourth push plate 531 to drive the first push plate 502 to move to one side.

[0044] The first transverse driving assembly includes a first transverse slide rail 505 disposed on the frame work surface 10, the extension direction of the first transverse slide rail 505 is consistent with the extension direction of the first receiving platform 501, and a plurality of first sliders 506 are arranged at intervals on the first transverse slide rail 505, and the first push plate 502 slides left and right on the first transverse slide rail 505 through the first sliders 506. In this embodiment, the first transverse driving assembly is provided with a first driving motor 507, a first driving wheel 508, a first driven wheel 509 and a first belt 510, the first driving motor 507 drives the first driving wheel 508 to rotate, and drives the first belt 510 to rotate between the first driving wheel 508 and the first driven wheel 509, and the first slider 506 is arranged on the first belt 510, so that under the action of the first driving motor 507, the first slider 506 slides on the first transverse slide rail 505.

[0045] In this embodiment, since bottle holder spacing adjustment components are also provided on the pairs of first push plates 502, a fourth transverse slide rail 525 is provided on the first transverse drive component, that is, a base of the fourth transverse slide rail 525 is fixed on the first slider 506, and the fourth transverse slide rail 525 can slide left and right on the first transverse slide rail 505.

[0046] The second transverse drive assembly includes a pair of second transverse rails 511, which are perpendicular to the first flexible transmission line 1, and a second slider 512 is arranged on the second transverse rail 511, and a second push plate 503 is connected to the second slider 512 through a base, and the second push plate 503 is directly opposite to the bottle holder 8 of the first flexible transmission line 1. The second transverse drive assembly also includes a second drive motor 513, a second driving wheel 514, a second driven wheel 515, a second belt 516 and a first lead screw 517. The second drive motor 513 realizes the rotation of the first lead screw 517 through the second driving wheel 514, the second driven wheel 515 and the second belt 516. The rotation of the first lead screw 517 drives the base arranged thereon to slide on the second transverse rail 511, and the sliding of the second transverse rail 511 drives the second push plate 503 to push the bottle holder 8 of the first flexible transmission line 1 to move horizontally to the first receiving platform 501.

[0047] The third transverse drive assembly includes a pair of third transverse rails 518 arranged at the end of the first receiving platform 501, a third slider 519 is arranged on the pair of third transverse rails 518, and a third push plate 504 is connected to the third slider 519. The third push plate 504 is directly opposite to the bottle holder 8 position of the first receiving platform 501. The third transverse drive assembly also includes a third drive motor 520, a third active wheel 521, a third driven wheel 522, a third belt 523 and a second lead screw 524. The third drive motor 520 realizes the rotation of the second lead screw 524 through the third active wheel 521, the third driven wheel 522 and the third belt 523. The rotation of the second lead screw 524 drives the third push plate 504 arranged thereon to slide on the third transverse rail 518. The sliding of the third transverse rail 518 drives the third push plate 504 to push the bottle holder 8 to move horizontally to the weighing and filling station.

[0048] A stopper 530 is also disposed on the ninth sliding block 527 between adjacent first push plates 502 , and the stopper 530 is disposed opposite to the first receiving platform 501 .

[0049] See also Figure 7 , Figure 8 and Fig. 9 The second transfer assembly 6 includes a second receiving platform 601 arranged on the other side of the weighing and filling station, the second receiving platform 601 is arranged on the fifth transverse driving assembly, the fifth transverse driving assembly drives the second receiving platform 601 to move away from the weighing and filling station, and a sixth transverse driving assembly is arranged on one side of the second receiving platform 601, and a fifth push plate 602 is arranged on the sixth transverse driving assembly. The sixth transverse driving assembly drives the fifth push plate 602 to push the bottle tray 8 on the second receiving platform 601 to the second flexible transmission line 2 along the extension direction of the second receiving platform 601.

[0050] The fifth transverse drive assembly includes a pair of fifth transverse rails 603 arranged on the other side of the weighing and filling station, a fifth slider 604 is arranged on the pair of fifth transverse rails 603, and the fifth slider 604 is connected to the second receiving platform 601. The fifth transverse drive assembly also includes a first cylinder 605, and the first cylinder 605 is telescopic to realize the second receiving platform 601 sliding back and forth on the fifth transverse rail 603.

[0051] The sixth transverse drive component includes a sixth transverse slide rail 606 arranged along the extension direction of the second receiving platform 601, a sixth slider 607 is arranged on the sixth transverse slide rail 606, and the sixth slider 607 is connected to the fifth push plate 602. The sixth transverse drive component also includes a sixth driving motor 608, a sixth driving wheel 609, a sixth driven wheel 610 and a sixth belt 611. The sixth slider 607 is arranged on the sixth belt 611, and the sixth driving motor drives the sixth slider 607 to drive the fifth push plate 602 to slide left and right.

[0052] The second receiving platform 601 is also rotatably connected to a flexible limit member 612 on the side close to the weighing and filling station, and an elastic member 613 is also connected between the lower end of the flexible limit member 612 and the second receiving platform 601. The flexible limit member 612 is higher than the surface of the second receiving platform 601 and its side close to the weighing and filling station is an outer arc surface.

[0053] See also Figure 7 The weighing module includes a weighing platform 301. In this embodiment, the weighing component 311 is a weighing sensor. The weighing and filling station is provided with a third receiving platform 302. The third receiving platform 302 is provided with a second longitudinal driving assembly to drive the third receiving platform 302 to adjust the height up and down. The second longitudinal driving assembly includes a second cylinder 305. The second cylinder 305 is vertically arranged, and its execution end is fixed on the third receiving platform 302.

[0054] A plurality of baffles 303 are arranged at intervals on the third receiving platform 302, and a plurality of through holes 310 are arranged on the third receiving platform 302 between adjacent baffles 303. The weighing platform 301 is arranged between two adjacent baffles 303 on the upper surface of the third receiving platform 302 through a second connecting rod 304 that passes through the through holes 310, and the weighing platform 301 and the third receiving platform 302 are always not in contact. The weighing element 311 is arranged at the lower end of the second connecting rod 304. In this embodiment, the weighing element 311 is a weighing sensor. The height of the weighing platform 301 is less than the height of the first receiving platform 501, and the spacing between adjacent baffles 303 matches the width of the bottom end of the bottle holder 8.

[0055] See also Figure 2 The filling module includes a main filling pipeline 306, a plurality of filling heads 307 and a barrel (not shown in the figure). The barrel is connected to the main filling pipeline 306 through a servo motor and a gear pump. The main filling pipeline 306 is connected to a plurality of filling heads 307 through a plurality of connecting ports. The plurality of filling heads 307 are located at the bottle mouth positions on the weighing and filling stations. The filling heads 307 are also provided with a third longitudinal drive assembly through a second connecting frame 308. The third longitudinal drive assembly drives the filling heads 307 to move up and down. The third longitudinal drive assembly includes a pair of third cylinders 309. The execution ends of the pair of third cylinders 309 are respectively provided at both ends of the second connecting frame 308.

[0056] In this embodiment, the second flexible transmission line 2 is designed to be divided into an upper transmission line 201 and a lower transmission line 202, which are flexibly connected. The upper transmission line 201 receives the bottle body 9 and the bottle tray 8 transferred by the second transfer component 6, and cyclically transmits them to the lower transmission line 202. A third transfer component 7 is also provided between the lower transmission line 202 and the first flexible transmission line 1, and the third transfer component 7 transfers the empty bottle tray 9 to the first flexible transmission line 1.

[0057] The third transfer assembly 7 includes a fourth receiving platform 701, which is arranged on one side of the lower transmission line 202, and a sixth push plate 702 is arranged on the other side of the lower transmission line 202, which is directly opposite to the bottle holder 8 on the lower transmission line 202. The sixth push plate 702 is provided with a seventh transverse driving assembly, and the seventh transverse driving assembly drives the sixth push plate 702 to push the bottle holder from the lower transmission line 202 to the fourth receiving platform 701. The seventh transverse driving assembly includes a pair of seventh transverse slide rails 704 arranged on the lower surface of the rack work surface 10, and also includes a fourth cylinder 705, the execution end of the fourth cylinder 705 is connected to the sixth push plate 702 through a bracket, the sixth push plate 702 is slidably connected to the pair of seventh transverse slide rails 704 through the bracket, the sixth push plate 702 is directly opposite to the bottle holder 8 on the lower transmission line 202, and the sixth push plate 702 is driven by the fourth cylinder 705 to push the bottle holder from the lower transmission line 202 to the fourth receiving platform 701 through telescopic movement.

[0058] The third transfer assembly 7 also includes a fourth longitudinal drive assembly for driving the fourth receiving platform 701 up and down. The fourth longitudinal drive assembly includes a fifth cylinder 706, the execution end of which is connected to the fourth receiving platform 701. A pair of linear guide rails 707 are also provided on both sides of the fourth receiving platform 701 for guiding.

[0059] The third transfer assembly 7 also includes a seventh push plate 703 disposed on one side of the first flexible transmission line 1, and an eighth transverse driving assembly is disposed on the seventh push plate 703, driving the seventh push plate 703 to push the bottle tray on the fourth receiving platform 701 to the first flexible transmission line 1. The eighth transverse driving assembly includes a pair of eighth transverse slide rails 708, which are disposed perpendicular to the fourth receiving platform 701, and an eighth slider 709 is disposed thereon. The eighth transverse driving assembly also includes a pair of sixth cylinders 710, and the execution end of the sixth cylinder 710 is connected to the eighth slider 709. The seventh push plate 703 slides on the eighth transverse slide rail 708 under the action of the sixth cylinder 710, so as to push the bottle tray 8 on the fourth receiving platform 701 to the first flexible transmission line 1.

[0060] A vertical side baffle 711 is also provided on the side of the fourth receiving platform 701 facing the lower transmission line 202. A lifting cylinder 712 is provided on both sides of the vertical side baffle 711, and the lifting cylinder 712 controls the lifting of the vertical side baffle 711.

[0061] A protective shell 713 is also provided on the path of the fourth receiving platform 701 moving up and down. The protective shell 713 is sleeved on the periphery of the path of the fourth receiving platform 701 moving up and down to protect the bottle holder 8 on the fourth receiving platform 701 from falling. The height of the protective shell 713 close to the first flexible transmission line 1 is less than or equal to the height of the first flexible transmission line 1.

[0062] Working principle:

[0063] 1. First, the empty bottle tray 8 is transferred from the lower conveyor line 202 to the first flexible conveyor line 1 under the action of the third transfer assembly 7. The first flexible conveyor line 1 transfers the bottle tray 8 to the bottle washing station. At the front end of the bottle washing station, the empty bottle 9 is placed in the bottle tray 8 manually or by a robot. The bottle tray 8 and its bottle 9 are transferred to the bottle washing station.

[0064] 2. Turn on the blower 401 and the vacuum pump filter 402, control the blowing and suction nozzle 405 to approach and align with the bottle mouth through the first longitudinal slide rail 407, and start the second drive motor 513 at the same time, control the second push plate 503 to push the bottle holder 8 of the first flexible transmission line 1 to move horizontally to the first receiving platform 501. After the bottle holder 8 is transferred, the blowing and suction are also completed, the first longitudinal slide rail 407 is controlled to move up, and the second drive motor 513 drives the second push plate 503 back to the original position to continue the next round of blowing and suction.

[0065] 3. The bottle holders 8 on the first receiving platform 501 are inserted between the two first push plates 502, and the first drive motor 507 is started to transfer the bottle holders 8 and the bottle bodies 9 to the other side of the first receiving platform 501. At this time, the spacing adjustment cylinder 526 is turned on to drive the fourth push plate 531 to drive the first push plate 502 to move a certain distance to the left, so that a gap is generated between each bottle holder 8.

[0066] 4. Start the third driving motor 520, and the third push plate 504 pushes the bottle holder 8 to move horizontally from the first receiving platform 501 to the weighing and filling station. Before starting the third driving motor 520, first start the second cylinder 305, and the second cylinder 305 drives the third receiving platform 302 on it to move upward a certain distance, and the third receiving platform 302 and the weighing platform 301 are not in contact after the movement distance. When the third push plate 504 pushes the bottle holder 8 to move horizontally from the first receiving platform 501 to the weighing and filling station, the bottle holder 8 and the bottle body 9 are carried between the two baffles 303 of the third receiving platform 302, and the bottle holder 8 is not in contact with the weighing platform 301 below. After the transfer is completed, the second cylinder 305 shrinks, and the third receiving platform 302 descends. The bottle holder 8 after the descent is just located on the weighing platform 301, and the bottle holder 8 after the descent is not in contact with the third receiving platform 302 below.

[0067] 5. Start weighing and filling, start the servo motor and gear pump, and fill the product in the barrel into the bottle body 9 through the main filling pipe. After filling and weighing are completed, turn on the second cylinder 305 to raise the third receiving platform 302, lift the bottle holder and the bottle body 9, and wait for the next round of the third push plate 504 to push the bottle holder 8 from the first receiving platform 501 to the weighing and filling station. In the process of the third push plate 504 pushing the bottle holder 8 from the first receiving platform 501 to the weighing and filling station, the bottle holder 8 on the third receiving platform 302 is squeezed and pushed to the second receiving platform 601 on one side.

[0068] 6. After the bottle holder 8 is transferred to the second receiving platform 601, the first cylinder 605 is started to pull the second receiving platform 601 away from the third receiving platform 302. After it is moved into place, the sixth drive motor 608 is turned on to drive the sixth slider 607 to drive the fifth push plate 602 to slide left and right. The fifth push plate 602 pushes the bottle holder 8 on the second receiving platform 601 left and right onto the second flexible transmission line 2.

[0069] 7. Bottle trays 8 and bottles 9 on the second flexible transmission line 2 can be unloaded manually or by a robot after passing through other stations. After unloading, the empty bottle trays are circulated and transferred to the bottom of the first flexible transmission line 1 under the action of the second flexible transmission line 2. The upper transmission line 201 designed in this embodiment is transmitted to the lower transmission line 202 through a flexible transmission.

[0070] 8. At the position of the lower conveyor line 202, the fourth cylinder 705 is started to drive the sixth push plate 702 to push the empty bottle tray 8 from the lower conveyor line 202 to the fourth receiving platform 701, and then the lifting cylinder 712 is started to raise the vertical side baffle 711 to block the side of the fourth receiving platform 701. At this time, the fifth cylinder 706 is turned on to move the fourth receiving platform 701 upward to the side of the first flexible conveyor line 1.

[0071] 9. Start the sixth cylinder 710, push the bottle tray 8 on the fourth receiving platform 701 to the first flexible transmission line 1 through the seventh push plate 703, and the first flexible transmission line 1 cyclically transfers the empty bottle tray to the starting station, and continues to perform the above steps 1 to 9.

[0072] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-head weighing filling machine, characterized in that: It comprises a first flexible transmission line (1), a second flexible transmission line (2) and a weighing and filling mechanism (3); The weighing and filling mechanism (3) comprises a weighing module and a filling module which are arranged at the weighing and filling station; A bottle holder (8) is provided on the first flexible transmission line (1), and a bottle body (9) is provided on the bottle holder (8); the bottle body (9) and the bottle holder (8) on the first flexible transmission line (1) are transferred to the weighing module of the weighing and filling station by a first transfer assembly (5), and the filling module fills the bottle body (9) on the weighing and filling station; After the filling module completes the filling, the bottle body (9) and the bottle holder (8) are transferred to the second flexible transmission line (2) via a second transfer assembly (6).

2. A multi-head weighing filling machine according to claim 1, characterized in that: A bottle cleaning station is also provided at the front end of the weighing and filling station. The bottle cleaning station is provided at the end of the first flexible transmission line (1), and a bottle blowing and suction mechanism (4) is provided on one side thereof for blowing and suctioning air at the mouth of the bottle (9) to complete the cleaning.

3. A multi-head weighing filling machine according to claim 2, characterized in that: The bottle blowing and suction mechanism (4) comprises a blower (401) and a vacuum pump filter (402); the blower (401) and the vacuum pump filter (402) are connected via a main air pipe (403); the main air pipe (403) is connected to a plurality of bronchial tubes (404); the end of each bronchial tube (404) is connected to a blowing and suction nozzle (405) facing the bottle mouth of the bottle body (9) at the bottle cleaning station.

4. A multi-head weighing filling machine according to claim 3, characterized in that: Each of the blowing and suction nozzles (405) is arranged on a first connecting frame (406), and the first connecting frame (406) is also arranged on a first longitudinal driving assembly.

5. The multi-head weighing filling machine according to claim 1, characterized in that: The first transfer assembly (5) comprises a first receiving platform (501) arranged on one side of the first flexible transmission line (1), the first receiving platform (501) extending to the weighing and filling station, a first push plate (502) being arranged on the first receiving platform (501), the first push plate (502) being arranged on a first transverse driving assembly, and the first transverse driving assembly driving the first push plate (502) to move along the extension direction of the first receiving platform (501) to the weighing and filling station; A second push plate (503) is further provided on the other side of the first flexible transmission line (1), and a second transverse driving assembly is provided on the second push plate (503), and the second transverse driving assembly drives the second push plate (503) to push the bottle holder (9) to move horizontally to the first receiving platform (501) in a direction perpendicular to the first flexible transmission line (1); The first transfer assembly further comprises a third push plate (504) arranged on a side of the first receiving platform (501) directly opposite to the weighing and filling station, and a third transverse drive assembly is arranged on the third push plate (504), and the third transverse drive assembly drives the third push plate (504) to push the bottle holder (8) to move towards the weighing and filling station.

6. A multi-head weighing filling machine according to claim 5, characterized in that: A plurality of pairs of first push plates (502) are arranged at intervals on the first receiving platform (501), and a bottle holder spacing adjustment assembly is also arranged on the plurality of pairs of first push plates (502), and the bottle holder spacing adjustment assembly comprises a fourth transverse slide rail (525) and a spacing adjustment cylinder (526) arranged on the first transverse driving assembly, and each pair of first push plates (502) slides on the fourth transverse slide rail (525) through a ninth slide block (527), and a first connecting rod (528) is arranged through two first push plates (502) arranged between adjacent bottle molds (8), a first push plate base (529) is fixed on one side of the first connecting rod (528), and another first push plate base (529) is slidably sleeved on the other side and has a certain sliding spacing, and the first push plate bases (529) are fixed on the corresponding fourth transverse slide rail (525); The spacing adjustment cylinder (526) is arranged on the first transverse driving assembly and a fourth push plate (531) is arranged at its execution end. The fourth push plate (531) is arranged on a ninth slider (527) on the inner side of the first push plate (502) at the end of the first receiving platform (501). The spacing adjustment cylinder (526) drives the fourth push plate (531) to drive the first push plate (502) to move to one side.

7. The multi-head weighing filling machine according to claim 1, characterized in that: The second transfer assembly (6) comprises a second receiving platform (601) arranged on the other side of the weighing and filling station, the second receiving platform (601) being arranged on a fifth transverse drive assembly, the fifth transverse drive assembly driving the second receiving platform (601) to move in a direction away from the weighing and filling station, and a sixth transverse drive assembly is arranged on one side of the second receiving platform (601), the sixth transverse drive assembly being arranged on a fifth push plate (602), the sixth transverse drive assembly driving the fifth push plate (602) to push the bottle holder (8) on the second receiving platform (601) to the second flexible transmission line (2) along the extension direction of the second receiving platform (601).

8. The multi-head weighing filling machine according to claim 7, characterized in that: The second receiving platform (601) is also rotatably connected to a flexible limiting member (612) on the side close to the weighing and filling station, and an elastic member (613) is also connected between the lower end of the flexible limiting member (612) and the second receiving platform (601). The height of the flexible limiting member (612) is higher than the surface of the second receiving platform (601) and the side close to the weighing and filling station is an outer arc surface.

9. The multi-head weighing filling machine according to claim 5, characterized in that: The weighing module comprises a weighing platform (301); the weighing and filling station is provided with a third receiving platform (302), and the third receiving platform (302) is provided with a second longitudinal driving component for driving the third receiving platform (302) to adjust its height up and down; A plurality of baffles (303) are arranged at intervals on the third receiving platform (302); a plurality of through holes (310) are arranged on the third receiving platform (302) between adjacent baffles (303); the weighing platform (301) is arranged between two adjacent baffles (303) on the upper surface of the third receiving platform (302) via a second connecting rod (304) that passes through the through holes (310); the weighing platform (301) and the third receiving platform (302) are always not in contact; and a weighing component (311) is connected to the lower end of the second connecting rod (304); The height of the weighing platform (301) is smaller than the height of the first receiving platform (501).

10. The multi-head weighing filling machine according to claim 1, characterized in that: The filling module comprises a main filling pipeline (306), a plurality of filling heads (307) and a barrel. The barrel is connected to the main filling pipeline (306) via a servo motor and a gear pump. The main filling pipeline (306) is connected to a plurality of filling heads (307) via a plurality of connecting ports. The plurality of filling heads (307) are directly opposite to the bottle mouth position on the weighing and filling station. The filling heads (307) are also provided with a third longitudinal drive assembly via a second connecting frame (308). The third longitudinal drive assembly drives the filling heads (307) to move up and down.

11. The multi-head weighing filling machine according to claim 1, characterized in that: The second flexible transmission line (2) is divided into an upper transmission line (201) and a lower transmission line (202), which are flexibly connected. The upper transmission line (201) receives the bottle bodies (9) and bottle trays (8) transferred by the second transfer component (6), and cyclically transfers them to the lower transmission line (202). A third transfer component (7) is also provided between the lower transmission line (202) and the first flexible transmission line (1), and the third transfer component (7) transfers the empty bottle trays (9) to the first flexible transmission line (1).

12. A multi-head weighing filling machine according to claim 11, characterized in that: The third transfer assembly (7) comprises a fourth receiving platform (701), the fourth receiving platform (701) being arranged on one side of the lower transmission line (202), a sixth push plate (702) being arranged on the other side of the lower transmission line (202) and being directly opposite to the bottle holder (8) on the lower transmission line (202), the sixth push plate (702) being arranged with a seventh transverse drive assembly, the seventh transverse drive assembly driving the sixth push plate (702) to push the bottle holder from the lower transmission line (202) to the fourth receiving platform (701); The third transfer assembly (7) further comprises a fourth longitudinal drive assembly for driving the fourth receiving platform (701) up and down; The third transfer assembly (7) further comprises a seventh push plate (703) arranged on one side of the first flexible transmission line (1), and an eighth transverse drive assembly is arranged on the seventh push plate (703) to drive the seventh push plate (703) to push the bottle tray on the fourth receiving platform (701) to the first flexible transmission line (1).

13. A multi-head weighing filling machine according to claim 12, characterized in that: A vertical side baffle (711) is also provided on the side of the fourth receiving platform (701) facing the lower transmission line (202), and the vertical side baffle (711) is controlled by a lifting cylinder (712).

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