Stepless distance adjustment linear filling machine and filling method

Abstract

The present invention provides a stepless pitch-adjustable linear filling machine and a filling method. The stepless pitch-adjustable linear filling machine includes a material storage device, a transport device, a filling device, a pitch-adjusting device, a lifting device, and a control device. The number of filling devices is multiple, and the multiple filling devices are all connected to the material storage device. The pitch-adjusting device includes a pitch-adjusting support seat, a pitch-adjusting servo drive unit, and a pitch-adjusting linkage assembly. The pitch-adjusting linkage assembly is disposed on the pitch-adjusting support seat. The multiple filling devices are all connected to the pitch-adjusting linkage assembly. The pitch-adjusting servo drive unit is connected to the pitch-adjusting linkage assembly to drive the multiple filling devices to move synchronously along a first direction. The lifting device is connected to the pitch-adjusting device. The control device is electrically connected to the material storage device, the transport device, the filling device, the pitch-adjusting device, and the lifting device, respectively. The stepless pitch-adjustable linear filling machine and the filling method of the present invention can steplessly adjust the spacing between the various filling devices, making adjustment more convenient and improving filling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of filling machines, and in particular to a stepless distance-adjustable linear filling machine and a filling method. Background Art

[0002] Filling machine is a kind of industrial packaging equipment. According to the different ways of feeding containers in the filling machine, filling machine can be divided into linear filling machine and rotary filling machine. Among them, linear filling machine has a wide range of technical applications and is therefore widely used in the industrial field.

[0003] In a linear filling machine, there are generally multiple filling valves, which are arranged linearly. Multiple containers can be filled simultaneously through a single filling action. Since multiple filling valves are usually fixedly connected to the machine body, the spacing between the multiple filling valves is usually fixed. Therefore, most current linear filling machines are only suitable for batch filling of containers of a certain specification, resulting in poor adaptability of the equipment when facing containers of different specifications and different filling requirements.

[0004] To address the problem of linear filling machines being unable to adjust the distance between filling valves, some linear filling devices capable of adjusting the distance between filling valves have emerged. For example, Chinese Patent Publication No. CN119284814A discloses an edible oil filling device. By integrating a plurality of fan-shaped adjustment slots on an adjustment plate with a plurality of filling valves, the horizontal spacing between the multiple filling valves can be adjusted by moving within the multiple adjustment slots. While this patent application can adjust the spacing between the filling valves, it also adjusts the position of the filling valves in a direction perpendicular to the conveying direction while adjusting the spacing of the filling valves in the conveying direction. This affects the positioning accuracy of the filling valves, easily affecting the filling effect of the filling valves, and also requires a larger adjustment space. Furthermore, this patent application can only adjust a fixed distance and cannot achieve stepless adjustment. If different distances are required, the adjustment plate must be replaced, which is inconvenient and cannot be applied to more efficient filling operations.

[0005] Therefore, how to more accurately and efficiently adjust the distance between the filling valves in a linear filling machine is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] A first object of the present invention is to provide a linear filling machine with stepless distance adjustment, which can more accurately and efficiently adjust the distance between each filling device in the linear filling machine.

[0007] The second object of the present invention is to provide a filling method, which adopts the above-mentioned stepless linear filling machine to achieve higher adjustment efficiency and higher filling efficiency.

[0008] In order to achieve the above first purpose, the present invention provides the following technical solutions:

[0009] Provided is a stepless linear filling machine comprising:

[0010] Storage device;

[0011] a transport device that transports the container in a first direction;

[0012] A filling device, wherein the number of the filling devices is multiple, and the multiple filling devices are all connected to the storage device;

[0013] a distance-adjusting device, the distance-adjusting device comprising a distance-adjusting support seat, a distance-adjusting servo drive unit, and a distance-adjusting linkage assembly, the distance-adjusting linkage assembly being disposed on the distance-adjusting support seat, the plurality of filling devices being connected to the distance-adjusting linkage assembly, the distance-adjusting servo drive unit being connected to the distance-adjusting linkage assembly to drive the plurality of filling devices to move synchronously along the first direction;

[0014] a lifting device connected to the distance adjusting device;

[0015] A control device is electrically connected to the storage device, the transport device, the filling device, the distance adjustment device and the lifting device respectively.

[0016] Through the above scheme, during filling, the staff fills the material into the storage device, and the transportation device transports the container to the bottom of the filling device along the first direction. The control device transmits the corresponding electrical signal to the distance adjusting device according to the different specifications of the containers. The distance adjusting device drives the multiple filling devices to move synchronously along the first direction, and keeps the same distance between each filling device to ensure that each filling device moves to the top of each container. The distance adjusting servo drive unit is used to drive the distance adjusting linkage component to drive the synchronous movement of each filling device, which can realize stepless adjustment of the distance between each filling device, and is more convenient to adjust. There is no need to replace different adjustment mechanisms according to containers of different specifications. Only one set of distance adjusting devices is needed to complete stepless adjustment, which can more accurately and efficiently adjust the distance between the filling devices in the linear filling machine.

[0017] Optionally, the distance adjusting device further includes a distance adjusting guide rail, which is arranged on the distance adjusting support seat and extends along the first direction. The filling device includes a filling support seat and a filling valve, which is slidably connected to the distance adjusting guide rail. The filling valve is arranged on the filling support seat, and the filling valve is connected to the storage device.

[0018] Optionally, the distance adjustment linkage assembly includes a distance adjustment cam rod, the distance adjustment cam rod is rotatably connected to the distance adjustment support seat, the distance adjustment cam rod extends along the first direction, the distance adjustment servo drive unit is connected to the distance adjustment cam rod, the outer wall of the distance adjustment cam rod is provided with a plurality of distance adjustment guide grooves, and the plurality of distance adjustment guide grooves all extend along the axial spiral of the distance adjustment cam rod, the filling support seat is provided with a filling guide column, the filling guide column is inserted into the distance adjustment guide groove, and the filling guide column can slide along the distance adjustment guide groove.

[0019] Optionally, the pitch-adjusting linkage assembly includes a pitch-adjusting screw, a pitch-adjusting nut, a pitch-adjusting guide rod, a pitch-adjusting scissors frame and a plurality of pitch-adjusting sliding seats. The pitch-adjusting guide rod is arranged on the pitch-adjusting support seat and extends along the first direction. The plurality of pitch-adjusting sliding seats are all slidably connected to the pitch-adjusting guide rod. The plurality of pitch-adjusting sliding seats are connected through the pitch-adjusting scissors frame. The filling support seat is connected to the pitch-adjusting sliding seat. The pitch-adjusting screw is arranged on the pitch-adjusting support seat. The pitch-adjusting nut is arranged on one of the pitch-adjusting sliding seats. The pitch-adjusting nut is threadedly connected to the pitch-adjusting screw, and the pitch-adjusting servo drive unit is connected to the pitch-adjusting screw.

[0020] Optionally, the storage device includes a storage tank, a first feeding pipe, a second feeding pipe, a flexible corrugated pipe, a flow meter and a booster pump, one end of the first feeding pipe is connected to the storage tank, the other end of the first feeding pipe is connected to one end of the second feeding pipe through the booster pump, the other end of the second feeding pipe is connected to one end of the flexible corrugated pipe, the other end of the flexible corrugated pipe is connected to the filling device, and the flow meter is arranged on the second feeding pipe.

[0021] Optionally, the stepless distance adjustment linear filling machine also includes a piece feeding detection device, which includes a piece feeding detection support seat and a piece feeding detection unit. The piece feeding detection support seat is arranged on the distance adjustment device, and the piece feeding detection support seat is provided with a piece feeding detection channel. The piece feeding detection unit is arranged on the side of the piece feeding detection channel.

[0022] Optionally, the steplessly adjustable linear filling machine further includes a baffle device, and the number of the baffle devices is two. The two baffle devices are arranged at intervals on the transport device along the first direction, and the baffle device includes a baffle drive unit, a baffle support seat and a baffle plate. The baffle support seat is arranged on the transport device, and the baffle drive unit is arranged on the baffle support seat. The baffle drive unit is connected to the baffle plate to drive the baffle plate to move along the second direction, and the second direction is orthogonal to the first direction.

[0023] Optionally, the transport device includes a transport frame, a transport motor, a transport transmission assembly and a transport belt, the transport motor is arranged on the transport frame, the transport motor is connected to the transport transmission assembly, and the transport transmission assembly is connected to the transport belt.

[0024] Optionally, the lifting device includes a lifting frame, a lifting drive unit, a lifting transmission assembly and a lifting column, the lifting drive unit is arranged on the lifting frame, the lifting drive unit is connected to the lifting transmission assembly, the lifting transmission assembly is connected to the lifting column, and the lifting column is connected to the distance adjustment device.

[0025] In order to achieve the above second objective, the present invention provides the following technical solutions:

[0026] A filling method is provided, which uses the above-mentioned stepless linear filling machine, including the following steps:

[0027] S1. The staff fills the materials into the storage device;

[0028] S2, the transport device transports the container along the first direction to below the filling device;

[0029] S3. The control device transmits corresponding electrical signals to the distance adjusting device according to the different specifications of the containers. The distance adjusting device drives the multiple filling devices to move synchronously in the first direction and maintains the same distance between the filling devices to ensure that each filling device moves directly above each container.

[0030] S4, the lifting device drives each filling device to move downward;

[0031] S5. The filling device fills the container. After the filling is completed, the lifting device drives each filling device to move upward, and the transport device continues to transport the container along the first direction.

[0032] Compared with the prior art, the solution of the present invention has the following advantages:

[0033] 1. In the stepless distance-adjustable linear filling machine of the present invention, during filling, the worker fills the material into the storage device, and the transport device transports the container to the bottom of the filling device along the first direction. The control device transmits the corresponding electrical signal to the distance-adjusting device according to the different specifications of the containers. The distance-adjusting device drives the multiple filling devices to move synchronously along the first direction and maintains the same distance between the filling devices to ensure that each filling device is moved directly above each container. The distance-adjusting servo drive unit is used to drive the distance-adjusting linkage assembly to drive the synchronous movement of each filling device, thereby realizing stepless adjustment of the distance between each filling device. The adjustment is more convenient and there is no need to replace different adjustment mechanisms according to containers of different specifications. Only one set of distance-adjusting devices is needed to complete the stepless adjustment, which can more accurately and efficiently adjust the distance between the filling devices in the linear filling machine.

[0034] 2. In the filling method of the present invention, the above-mentioned stepless distance adjustment linear filling machine is used, which can more accurately and efficiently adjust the distance between the various filling devices in the linear filling machine, resulting in higher adjustment efficiency and higher filling efficiency.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the following description, will become apparent from the following description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0037] Figure 1 It is a structural schematic diagram of a stepless distance-adjustable linear filling machine in one embodiment of the present invention;

[0038] Figure 2 This is a schematic structural diagram of a stepless linear filling machine without a protective frame in one embodiment of the present invention;

[0039] Figure 3 A side view of a stepless linear filling machine with its protective frame removed in accordance with an embodiment of the present invention;

[0040] Figure 4 A schematic structural diagram of a transport device, a filling device, a distance adjustment device, and a lifting device in one embodiment of the present invention;

[0041] Figure 5 A schematic structural diagram of a distance-adjustable linkage assembly in one embodiment of the present invention;

[0042] Figure 6 A schematic structural diagram of a distance-adjustable linkage assembly in another embodiment of the present invention;

[0043] Figure 7A schematic structural diagram of a blocking device in one embodiment of the present invention;

[0044] Figure 8 It is a structural schematic diagram of a filling device in an embodiment of the present invention.

[0045] Figure numerals: 1, storage device; 11, storage tank; 12, first feeding pipe; 13, second feeding pipe; 14, flexible corrugated pipe; 15, flow meter; 16, booster pump; 2, transportation device; 21, transportation rack; 22, transportation motor; 23, transportation belt; 3, filling device; 31, filling support seat; 32, filling valve; 33, filling detection unit; 34, filling guide column; 35, filling feed pipe; 4, distance adjustment device; 41, distance adjustment support seat; 42, distance adjustment servo drive unit; 43, distance adjustment guide rail; 44, Pitch-adjusting cam rod; 441, pitch-adjusting guide groove; 45, pitch-adjusting screw rod; 46, pitch-adjusting nut; 47, pitch-adjusting guide rod; 48, pitch-adjusting scissors frame; 49, pitch-adjusting sliding seat; 5, lifting device; 51, lifting frame; 52, lifting column; 6, protective frame; 7, feed detection device; 71, feed detection support seat; 72, feed detection unit; 73, feed detection channel; 8, block device; 81, block drive unit; 82, block support seat; 83, block plate; 84, block guide rail; 85, block displacement unit; 9, container. DETAILED DESCRIPTION

[0046] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0047] like Figures 1 to 8 As shown, the present invention provides a stepless linear filling machine, which is mainly used for filling materials into a container 9. In this embodiment, a packaging bottle is described as the container 9. In some other embodiments, the container 9 can also be other bottle bodies, box bodies, etc. for containing materials.

[0048] For the sake of convenience of explanation, in this embodiment, Figure 1 As shown, the first direction is the left-right direction, and the second direction is the front-back direction.

[0049] Specifically, if Figures 1 to 3As shown, the stepless distance-adjustable linear filling machine of the present invention includes a storage device 1, a transport device 2, a filling device 3, a distance-adjusting device 4, a lifting device 5 and a control device. The transport device 2 transports the container 9 from left to right along a first direction. There are multiple filling devices 3, and the multiple filling devices 3 are all connected to the storage device 1. The lifting device 5 is connected to the distance-adjusting device 4. The control device is electrically connected to the storage device 1, the transport device 2, the filling device 3, the distance-adjusting device 4 and the lifting device 5 respectively.

[0050] More specifically, the transport device 2 transports the container 9 in the left and right directions, the lifting device 5 is located on the rear side of the transport device 2, the filling device 3 is located in front of the distance adjusting device 4, the filling device 3 is located on the upper side of the transport device 2, and the area below the filling device 3 is the filling area.

[0051] In some embodiments, the control device is a PLC (Programmable Logic Controller). In some other embodiments, the control device may also be a control device such as an industrial computer.

[0052] In some embodiments, there are multiple filling devices 3, which can be two, three or more. In this embodiment, there are six filling devices 3. In some other embodiments, the number of filling devices 3 can be changed according to actual conditions.

[0053] In some embodiments, as Figure 1 As shown, the stepless distance-adjustable linear filling machine further includes a protective frame 6 , and the storage device 1 , the transport device 2 and the lifting device 5 are all arranged on the protective frame 6 , which has a certain protective function.

[0054] In some embodiments, as Figure 2 As shown, the distance adjusting device 4 includes a distance adjusting support seat 41, a distance adjusting servo drive unit 42 and a distance adjusting linkage assembly. The distance adjusting linkage assembly is arranged on the distance adjusting support seat 41. Multiple filling devices 3 are connected to the distance adjusting linkage assembly. The distance adjusting servo drive unit 42 is connected to the distance adjusting linkage assembly to drive multiple filling devices 3 to move synchronously along the first direction.

[0055] In some embodiments, the distance adjustment servo drive unit 42 is a servo motor, which can achieve stepless adjustment through servo drive and drive the distance adjustment linkage component to steplessly adjust the distance between each filling device 3.

[0056] In the actual filling process, it is usually necessary to fill containers 9 of different specifications. It is understandable that when filling containers 9 of different specifications and different batches, the distance between the bottle mouths of two adjacent containers 9 is different. By setting the distance adjusting device 4, the distance between each filling device 3 can be adjusted, so that it can adapt to containers 9 of different specifications and have better adaptability.

[0057] Specifically, during filling, the staff fills the material into the storage device 1, and the transport device 2 transports the container 9 from left to right along the first direction to the bottom of the filling device 3. The control device transmits the corresponding electrical signal to the distance adjusting device 4 according to the different specifications of the containers 9. The distance adjusting device 4 drives multiple filling devices 3 to move synchronously along the first direction, and keeps the same distance between each filling device 3 to ensure that each filling device 3 moves to the top of each container 9. The distance adjusting servo drive unit 42 is used to drive the distance adjusting linkage component to drive each filling device 3 to move synchronously, which can realize stepless adjustment of the distance between each filling device 3, and is more convenient to adjust. There is no need to replace different adjustment mechanisms according to different specifications of containers 9. Only one set of distance adjusting devices 4 is needed to complete stepless adjustment, which can more accurately and efficiently adjust the distance between the filling devices 3 in the linear filling machine.

[0058] In some embodiments, as Figure 2 、 Figure 3 and Figure 8 As shown, the distance adjusting device 4 also includes a distance adjusting guide rail 43, which is arranged on the distance adjusting support seat 41 and extends along the first direction. The filling device 3 includes a filling support seat 31 and a filling valve 32, the filling support seat 31 is slidably connected to the distance adjusting guide rail 43, the filling valve 32 is arranged on the filling support seat 31, and the filling valve 32 is connected to the storage device 1.

[0059] Specifically, there are two distance-adjusting guide rails 43, and both distance-adjusting guide rails 43 are fixedly connected to the distance-adjusting support seat 41. Both ends of the two distance-adjusting guide rails 43 extend in the left-right direction. The two distance-adjusting guide rails 43 are arranged at intervals on the distance-adjusting support seat 41 in the vertical direction. The filling support seat 31 is slidably connected to the distance-adjusting guide rails 43, and the filling support seat 31 slides more smoothly, thereby improving the stability during distance adjustment.

[0060] In some embodiments, as Figure 8 As shown, the filling device 3 also includes a filling detection unit 33, which is arranged at the bottom of the filling support seat 31. The filling detection unit 33 is used to detect whether there is a container 9 under the filling valve 32. If there is no container 9, the control device will not control the corresponding filling valve 32 to fill, so as to avoid wasting materials and causing pollution.

[0061] In some embodiments, the filling detection unit 33 is a photoelectric switch, which has a faster sensing speed.

[0062] In a specific embodiment, Figure 4 and Figure 5As shown, the distance adjustment linkage assembly includes a distance adjustment cam rod 44, which is rotatably connected to the distance adjustment support seat 41, and the distance adjustment cam rod 44 extends along the first direction. The distance adjustment servo drive unit 42 is connected to the distance adjustment cam rod 44, and the outer wall of the distance adjustment cam rod 44 is provided with a plurality of distance adjustment guide grooves 441, and the plurality of distance adjustment guide grooves 441 all extend spirally along the axial direction of the distance adjustment cam rod 44. The filling support seat 31 is provided with a filling guide column 34, and the filling guide column 34 is inserted into the distance adjustment guide groove 441, and the filling guide column 34 can slide along the distance adjustment guide groove 441. Specifically, the distance-adjusting cam rod 44 extends in the left-right direction. When the distance between the filling devices 3 needs to be adjusted, the distance-adjusting servo drive unit 42 is started and drives the distance-adjusting cam rod 44 to rotate. The outer wall of the distance-adjusting cam rod 44 is provided with a plurality of spirally extending distance-adjusting guide grooves 441. The plurality of filling support seats 31 are provided with filling guide columns 34. The plurality of filling guide columns 34 are respectively plugged into the plurality of distance-adjusting guide grooves 441. It can be understood that when the distance-adjusting cam rod 44 rotates, the filling guide columns 34 will move along the distance-adjusting guide grooves 441, that is, the filling support seat 31 will move on the distance-adjusting guide rail 43, thereby realizing the distance-adjusting function. By driving the distance-adjusting cam rod 44 to rotate, all the filling devices 3 can be driven to move together. The distance adjustment is very convenient, and the synchronous distance adjustment of all the filling devices 3 can be realized. In addition, a servo motor is used as the distance-adjusting servo drive unit 42. Through the servo drive, stepless adjustment can be realized, and the distance-adjusting linkage component can be driven to steplessly adjust the distance between each filling device 3.

[0063] In another specific embodiment, Figure 6As shown, the distance adjustment linkage assembly includes a distance adjustment screw 45, a distance adjustment nut 46, a distance adjustment guide rod 47, a distance adjustment scissors frame 48 and a plurality of distance adjustment sliding seats 49. The distance adjustment guide rod 47 is arranged on the distance adjustment support seat 41 and extends along the first direction. The plurality of distance adjustment sliding seats 49 are all slidably connected to the distance adjustment guide rod 47. The plurality of distance adjustment sliding seats 49 are connected through the distance adjustment scissors frame 48. The filling support seat 31 is connected to the distance adjustment sliding seat 49. The distance adjustment screw 45 is arranged on the distance adjustment support seat 41. The distance adjustment nut 46 is arranged on one of the distance adjustment sliding seats 49. The distance adjustment nut 46 is threadedly connected to the distance adjustment screw 45. The distance adjustment servo drive unit 42 is connected to the distance adjustment screw 45. Specifically, the distance-adjusting guide rod 47 extends in the left-right direction, and the distance-adjusting nut 46 is provided on the distance-adjusting sliding seat 49 on the far left. When the distance between the filling devices 3 needs to be adjusted, the distance-adjusting servo drive unit 42 is started and drives the distance-adjusting screw rod 45 to rotate. The distance-adjusting screw rod 45 drives the distance-adjusting sliding seat 49 on the far left to move. When the distance-adjusting sliding seat 49 on the far left slides on the distance-adjusting guide rod 47, the remaining distance-adjusting sliding seats 49 can be driven to move through the distance-adjusting scissors rack 48. It can be understood that if the distance between the filling devices 3 is to be increased, the remaining distance-adjusting sliding seats 49 can be driven to move to the right. If the distance between the filling devices 3 is to be reduced, the remaining distance-adjusting sliding seats 49 can be driven to move to the left. The adjustment is very convenient, and the synchronous distance adjustment of all filling devices 3 can be realized. In addition, a servo motor is used as the distance-adjusting servo drive unit 42. Through the servo drive, stepless adjustment can be realized, and the distance-adjusting linkage assembly can be driven to steplessly adjust the distance between each filling device 3.

[0064] In some embodiments, as Figure 2 、 Figure 3 and Figure 8 As shown, the filling device 3 also includes a filling feed pipe 35, one end of which is connected to the filling valve 32, and the other end of which is connected to the storage device 1, which can better guide the material in the storage device 1 to the filling valve 32.

[0065] In some embodiments, as Figure 2 and Figure 3 As shown, the storage device 1 includes a storage tank 11, a first feeding pipe 12, a second feeding pipe 13, a flexible corrugated pipe 14, a flow meter 15 and a booster pump 16. One end of the first feeding pipe 12 is connected to the storage tank 11, and the other end of the first feeding pipe 12 is connected to one end of the second feeding pipe 13 through the booster pump 16. The other end of the second feeding pipe 13 is connected to one end of the flexible corrugated pipe 14, and the other end of the flexible corrugated pipe 14 is connected to the filling device 3. The flow meter 15 is arranged on the second feeding pipe 13.

[0066] Specifically, materials are stored in the storage tank 11 before use. When the filling valve 32 is not opened, the circulation valve of the booster pump 16 is opened and circulation pressurization is performed. When the filling valve 32 is filling, the circulation valve of the booster pump 16 is closed and circulation pressurization is not performed, thereby ensuring the normal transportation of materials.

[0067] Furthermore, the flexible corrugated pipe 14 is a stainless steel bellows. In order not to affect other parts of the drawings, only part of the flexible corrugated pipe 14 is shown in the drawings. One end of the flexible corrugated pipe 14 is connected to the second feeding pipe 13, and the other end of the flexible corrugated pipe 14 is connected to the filling feed pipe 35. The stainless steel bellows has deformation ability, and when the filling valve 32 moves, it can still achieve normal filling work, and has better adaptability.

[0068] In some embodiments, as Figure 2 and Figure 3 As shown, the stepless distance adjustment linear filling machine also includes a piece-feeding detection device 7, which includes a piece-feeding detection support seat 71 and a piece-feeding detection unit 72. The piece-feeding detection support seat 71 is arranged on the distance adjustment device 4, and the piece-feeding detection support seat 71 is provided with a piece-feeding detection channel 73. The piece-feeding detection unit 72 is arranged on the side of the piece-feeding detection channel 73.

[0069] Specifically, when a container 9 is about to enter the filling area, it will first pass through the incoming inspection channel 73, which will trigger the incoming inspection unit 72. The control device will count the containers 9 entering the filling area. When a certain number of containers 9 enter the filling area, the control device will control the transport device 2 to pause transporting the containers 9, which is more intelligent.

[0070] In some embodiments, the incoming article detection unit 72 is a photoelectric switch, which has a faster sensing speed.

[0071] In some embodiments, as Figure 2 and Figure 7 As shown, the stepless distance adjustment linear filling machine also includes a baffle device 8, and the number of the baffle devices 8 is two. The two baffle devices 8 are arranged on the transport device 2 at intervals along the first direction. The baffle device 8 includes a baffle driving unit 81, a baffle support seat 82 and a baffle plate 83. The baffle support seat 82 is arranged on the transport device 2, and the baffle driving unit 81 is arranged on the baffle support seat 82. The baffle driving unit 81 is connected to the baffle plate 83 to drive the baffle plate 83 to move along the second direction, and the second direction is orthogonal to the first direction.

[0072] Specifically, the control device will count the containers 9 entering the filling area. When a certain number of containers 9 enter the filling area, the control device will control the transport device 2 to pause transporting the containers 9. At this time, the control device will transmit the corresponding electrical signal to the two baffle devices 8. The baffle drive unit 81 drives the baffle plate 83 to move toward the rear side and enter the transport path of the transport device 2. One of the baffle plates 83 is used to prevent the remaining containers 9 from entering the filling area, and the other baffle plate 83 is used to prevent the containers 9 in the filling area from leaving the filling area, which is more intelligent.

[0073] In some embodiments, the stopper driving unit 81 is a linear cylinder. In some other embodiments, the stopper driving unit 81 may also be a linear motor or other component having a linear driving function.

[0074] In some embodiments, as Figure 2 and Figure 7 As shown, the blocking device 8 also includes a blocking guide rail 84 and a blocking displacement unit 85. The blocking guide rail 84 and the blocking displacement unit 85 are both arranged on the transport device 2. The two ends of the blocking guide rail 84 extend in the left and right directions. The blocking support seat 82 is slidably connected to the blocking guide rail 84. The blocking displacement unit 85 is connected to the blocking support seat 82 to drive the blocking support seat 82 to move left and right. It can be understood that the space occupied by containers 9 of different specifications in the filling area is different. By setting the blocking guide rail 84 and the blocking displacement unit 85, the position of the blocking support seat 82 can be adjusted, that is, the position of the blocking plate 83 can be adjusted to adapt to containers 9 of different specifications, and the adaptability is better.

[0075] In some embodiments, the stopper displacement unit 85 is a servo cylinder. In some other embodiments, the stopper displacement unit 85 may also be a component with a linear drive function, such as a servo motor.

[0076] In some embodiments, as Figure 2 As shown, the transport device 2 includes a transport frame 21, a transport motor 22, a transport transmission assembly and a transport belt 23. The transport motor 22 is arranged on the transport frame 21, the transport motor 22 is connected to the transport transmission assembly, and the transport transmission assembly is connected to the transport belt 23. Specifically, the transport transmission assembly is a chain sprocket transmission component, and the transport is carried out by the transport belt 23, which makes the transport more stable.

[0077] In some embodiments, as Figure 3 and Figure 4As shown, the lifting device 5 includes a lifting frame 51, a lifting drive unit, a lifting transmission assembly and a lifting column 52. The lifting drive unit is arranged on the lifting frame 51, the lifting drive unit is connected to the lifting transmission assembly, the lifting transmission assembly is connected to the lifting column 52, and the lifting column 52 is connected to the distance adjusting device 4. Specifically, the lifting transmission assembly is a screw transmission component, which makes the lifting process of the lifting column 52 smoother.

[0078] An embodiment of the present invention further provides a filling method, which uses the above-mentioned stepless distance adjustment linear filling machine to more accurately and efficiently adjust the distance between each filling device 3 in the linear filling machine, thereby achieving higher adjustment efficiency and higher filling efficiency.

[0079] An embodiment of the present invention provides a filling method comprising the following steps:

[0080] S1. The staff fills the material into the storage device 1. Specifically, the staff will fill the material into the storage tank 11 in advance;

[0081] S2, the transport device 2 transports the container 9 from left to right along the first direction to the bottom of the filling device 3;

[0082] S3. The control device transmits corresponding electrical signals to the distance adjusting device 4 according to the different specifications of the containers 9. The distance adjusting device 4 drives the multiple filling devices 3 to move synchronously in the first direction, that is, to the left or to the right at the same time, and keeps the same distance between the filling devices 3 to ensure that each filling device 3 moves directly above each container 9.

[0083] S4, the lifting device 5 drives each filling device 3 to move downward;

[0084] S5, the filling device 3 fills the container 9. After the filling is completed, the lifting device 5 drives each filling device 3 to move upward, and the transport device 2 continues to transport the container 9 along the first direction, that is, while sending away the filled container 9, it transports the container 9 to be filled to the filling area.

[0085] In some embodiments, in step S2, the transport device 2 transports multiple containers 9 from left to right, and allows the multiple containers 9 to pass through the incoming inspection channel 73 in sequence. When the container 9 passes through the incoming inspection channel 73, it will trigger the incoming inspection unit 72, and the control device will count the containers 9 entering the filling area. When a certain number of containers 9 enter the filling area, the control device will control the transport device 2 to pause transporting the containers 9, which is more intelligent.

[0086] Furthermore, in step S2, when a certain number of containers 9 enter the filling area, the control device will control the transport device 2 to pause transporting the containers 9. At this time, the control device will transmit the corresponding electrical signal to the two block devices 8, and the block drive unit 81 will drive the block plate 83 to move toward the rear side and enter the transport path of the transport device 2. One of the block plates 83 is used to prevent the remaining containers 9 from entering the filling area, and the other block plate 83 is used to prevent the containers 9 in the filling area from leaving the filling area, which is more intelligent.

[0087] In some embodiments, in step S4, the lifting device 5 drives each filling device 3 to move downward, so that the filling port of the filling valve 32 moves to the top of the container 9 or extends into the container 9. Specifically, in some cases, the filling port only needs to be moved to the top of the container 9 for filling, and in some cases, the filling port needs to be extended into the interior of the container 9 for filling. The selection can be made according to actual needs.

[0088] In some embodiments, in step S5, if in step S4, the filling port is only moved to the top of the container 9, the lifting device 5 will no longer drive each filling device 3 to move upward; if the filling port has been extended into the container 9, the lifting device 5 will drive each filling device 3 to move upward so that the filling port leaves the container 9 workpiece; it can be understood that in step S4, if the filling port is only moved to the top of the container 9, it will not affect the transportation of the container 9 by the transportation device 2, and the lifting device 5 will not need to drive each filling device 3 to move upward.

[0089] In some embodiments, in step S5, the flow meter 15 is used to detect the amount of material being filled. After detecting the rated amount of material being filled, the flow meter 15 transmits the corresponding electrical signal to the control device, and the control device controls the filling valve 32 to stop filling, which is more intelligent.

[0090] The above descriptions are only partial embodiments of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A stepless linear filling machine, characterized in that: include: Storage device (1); A transport device (2), wherein the transport device (2) transports the container (9) along a first direction; A filling device (3), wherein the number of the filling devices (3) is multiple, and the multiple filling devices (3) are all connected to the storage device (1); a distance adjustment device (4), the distance adjustment device (4) comprising a distance adjustment support seat (41), a distance adjustment servo drive unit (42) and a distance adjustment linkage assembly, the distance adjustment linkage assembly being arranged on the distance adjustment support seat (41), the plurality of filling devices (3) being connected to the distance adjustment linkage assembly, the distance adjustment servo drive unit (42) being connected to the distance adjustment linkage assembly to drive the plurality of filling devices (3) to move synchronously along the first direction; A lifting device (5), the lifting device (5) being connected to the distance adjusting device (4); A control device, the control device being electrically connected to the storage device (1), the transport device (2), the filling device (3), the distance adjustment device (4), and the lifting device (5); The distance adjustment device (4) further comprises a distance adjustment guide rail (43), the distance adjustment guide rail (43) being arranged on the distance adjustment support seat (41) and extending along the first direction, the filling device (3) comprising a filling support seat (31) and a filling valve (32), the filling support seat (31) being slidably connected to the distance adjustment guide rail (43), the filling valve (32) being arranged on the filling support seat (31), and the filling valve (32) being connected to the storage device (1); The pitch-adjusting linkage assembly comprises a pitch-adjusting screw (45), a pitch-adjusting nut (46), a pitch-adjusting guide rod (47), a pitch-adjusting scissors frame (48) and a plurality of pitch-adjusting sliding seats (49). The pitch-adjusting guide rod (47) is arranged on the pitch-adjusting support seat (41) and extends along the first direction. The plurality of pitch-adjusting sliding seats (49) are all slidably connected to the pitch-adjusting guide rod (47). The plurality of pitch-adjusting sliding seats (49) are connected via the pitch-adjusting scissors frame (48). The filling support seat (31) is connected to the pitch-adjusting sliding seat (49). The pitch-adjusting screw (45) is arranged on the pitch-adjusting support seat (41). The pitch-adjusting nut (46) is arranged on one of the pitch-adjusting sliding seats (49). The pitch-adjusting nut (46) is threadedly connected to the pitch-adjusting screw (45). The pitch-adjusting servo drive unit (42) is connected to the pitch-adjusting screw (45).

2. The stepless linear filling machine according to claim 1, characterized in that: The storage device (1) comprises a storage tank (11), a first feeding pipe (12), a second feeding pipe (13), a flexible corrugated pipe (14), a flow meter (15) and a booster pump (16), one end of the first feeding pipe (12) is connected to the storage tank (11), the other end of the first feeding pipe (12) is connected to one end of the second feeding pipe (13) through the booster pump (16), the other end of the second feeding pipe (13) is connected to one end of the flexible corrugated pipe (14), the other end of the flexible corrugated pipe (14) is connected to the filling device (3), and the flow meter (15) is provided on the second feeding pipe (13).

3. The stepless linear filling machine according to claim 1, characterized in that: The stepless distance-adjustable linear filling machine further comprises a piece-feeding detection device (7), the piece-feeding detection device (7) comprising a piece-feeding detection support seat (71) and a piece-feeding detection unit (72), the piece-feeding detection support seat (71) being arranged on the distance-adjusting device (4), the piece-feeding detection support seat (71) being provided with a piece-feeding detection channel (73), and the piece-feeding detection unit (72) being arranged on the side of the piece-feeding detection channel (73).

4. The stepless linear filling machine according to claim 1, characterized in that: The stepless linear filling machine further comprises a stopper device (8), wherein the number of the stopper devices (8) is two, and the two stopper devices (8) are arranged on the transport device (2) at intervals along the first direction, and the stopper device (8) comprises a stopper driving unit (81), a stopper support seat (82) and a stopper plate (83), wherein the stopper support seat (82) is arranged on the transport device (2), the stopper driving unit (81) is arranged on the stopper support seat (82), and the stopper driving unit (81) is connected to the stopper plate (83) to drive the stopper plate (83) to move along a second direction, wherein the second direction is orthogonal to the first direction.

5. The stepless linear filling machine according to claim 1, characterized in that: The transport device (2) comprises a transport frame (21), a transport motor (22), a transport transmission assembly and a transport belt (23); the transport motor (22) is arranged on the transport frame (21); the transport motor (22) is connected to the transport transmission assembly; and the transport transmission assembly is connected to the transport belt (23).

6. The stepless linear filling machine according to claim 1, characterized in that: The lifting device (5) comprises a lifting frame (51), a lifting drive unit, a lifting transmission assembly, and a lifting column (52); the lifting drive unit is arranged on the lifting frame (51); the lifting drive unit is connected to the lifting transmission assembly; the lifting transmission assembly is connected to the lifting column (52); and the lifting column (52) is connected to the distance adjustment device (4).

7. A filling method, characterized in that: The stepless linear filling machine according to claim 1 comprises the following steps: S1. The staff fills the material into the storage device (1); S2, the transport device (2) transports the container (9) along a first direction to below the filling device (3); S3, the control device transmits corresponding electrical signals to the distance adjusting device (4) according to the different specifications of the containers (9), and the distance adjusting device (4) drives the multiple filling devices (3) to move synchronously along the first direction and keeps the same distance between the filling devices (3), ensuring that each filling device (3) moves to the top of each container (9); S4, the lifting device (5) drives each filling device (3) to move downward; S5, the filling device (3) fills the container (9). After the filling is completed, the lifting device (5) drives each filling device (3) to move upward, and the transport device (2) continues to transport the container (9) along the first direction.

Images