Powder filling system

Abstract

The present invention provides a powder filling system, comprising: a frame installed with a chain plate conveyor line, on which a powder filling station and a water separation membrane punching and welding station are sequentially arranged along the conveying direction of the chain plate conveyor line; a filling device, installed on the frame and corresponding to the powder filling station to achieve precise filling of powder. The filling device includes a filling frame installed with a metering hopper, a filling head is arranged at the lower end of the metering hopper. The filling device further includes a driving component for driving the screw to rotate and an anti-hanging cup component arranged outside the filling pipe and used for separating the cup body from the filling pipe; a powder leveling and cleaning component for leveling the cup mouth and cleaning the cup edge is arranged on the frame between the powder filling station and the water separation membrane punching and welding station. The present invention solves the problems in the prior art that the capsule coffee filling device has a complex structure, and due to the uneven surface of the powder in the cup body and the presence of powder on the cup edge, the film sealing effect of the cup body filled with powder is affected, resulting in poor product quality.

Description

Technical Field

[0001] The present invention relates to the field of powder filling, and more particularly to a powder filling system. Background Art

[0002] Capsule coffee is a kind of capsule drink. It first grinds coffee beans into coffee powder and then fills them into aluminum capsules, which eliminates problems such as the souring and oxidation of ordinary coffee beans or coffee powder after contacting air.

[0003] When producing capsule coffee, it is necessary to fill the coffee powder into a pre-treated cup body and then perform encapsulation. However, the devices for filling and encapsulating capsule coffee on the existing market not only have a complex structure, but also affect the film sealing effect of the cup body filled with powder due to the uneven surface of the powder in the cup body and the presence of powder on the cup rim, resulting in poor product quality.

[0004] In view of this, it is necessary to improve the capsule coffee filling device in the prior art to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to disclose a powder filling system to solve the problems that the capsule coffee filling device in the prior art has a complex structure and affects the film sealing effect of the cup body filled with powder due to the uneven surface of the powder in the cup body and the presence of powder on the cup rim, resulting in poor product quality.

[0006] To achieve the above purpose, the present invention provides a powder filling system, including:

[0007] A rack installed with a chain plate conveyor line, and a powder filling station and a water separation film punching and welding station are sequentially arranged on the rack along the conveying direction of the chain plate conveyor line;

[0008] A filling device, installed on the rack and corresponding to the powder filling station, for realizing the precise filling of powder. The filling device includes a filling rack installed with a metering hopper, a filling head is arranged at the lower end of the metering hopper. The filling head includes a filling pipe and a screw rod arranged in the filling pipe. The filling device further includes a driving component for driving the screw rod to rotate and an anti-hanging cup component arranged outside the filling pipe and used for separating the cup body from the filling pipe;

[0009] A powder leveling and cleaning component for leveling the cup mouth and cleaning the cup rim is arranged on the rack between the powder filling station and the water separation film punching and welding station.

[0010] As a further improvement of the present invention, the powder leveling and cleaning component includes a leveling head, a leveling air cylinder for driving the leveling head to move up and down, a sealing cover, a pressing air cylinder for pressing the sealing cover against the chain plate of the chain conveyor line, and a suction fan.

[0011] As a further improvement of the present invention, a transmission rod connected to the leveling cylinder penetrates through the sealing cover. Part of the transmission rod penetrates through the leveling head. One end of the leveling head for the transmission rod to penetrate is embedded in the sealing cover, and the sealing cover is communicated with the pipeline of the suction fan.

[0012] As a further improvement of the present invention, the leveling head forms a receiving cavity for receiving the end of the transmission rod. The transmission rod forms a cavity communicated with the receiving cavity. The side wall of the leveling head forms a plurality of ventilation holes communicated with the receiving cavity. When the leveling head is located in the cup body, the ventilation holes are communicated with the sealed cavity of the sealing cover.

[0013] As a further improvement of the present invention, before leveling the cup mouth and cleaning the cup edge through the powder leveling and cleaning assembly on the frame, a full cup weighing assembly for weighing the cup body after powder filling is further provided. The full cup weighing assembly includes a separation frame, a weighing drive assembly for driving the separation frame to move up and down. A separation cup holder for fixing the cup body is fixedly installed on the separation frame, and a weighing sensor is installed on the separation cup holder.

[0014] As a further improvement of the present invention, an empty cup weighing assembly is further included before the powder filling station, and the empty cup weighing assembly has the same structure as the full cup weighing assembly.

[0015] As a further improvement of the present invention, the filling device further includes:

[0016] A buffer hopper, a horizontal conveying mechanism is communicated below the buffer hopper, the horizontal conveying mechanism is communicated with the metering cone hopper, and a first material level sensor is arranged on the buffer hopper;

[0017] The drive assembly is arranged in the power box. Among them, a second material level sensor for detecting the powder height in the metering cone hopper is arranged in the power box.

[0018] As a further improvement of the present invention, the anti - hanging cup assembly includes:

[0019] A fixed sleeve fixed to the outer part of the straight pipe of the filling pipe;

[0020] A movable sleeve sleeved outside the fixed sleeve and capable of moving up and down. A socket hole is arranged on the movable sleeve. The socket hole includes a first hole at the upper part and a second hole located below the first hole and communicated with the first hole. The aperture size of the second hole matches the outer diameter size of the fixed sleeve, and the aperture of the first hole is larger than the outer diameter of the fixed sleeve.

[0021] Wherein, the outer edge of the cup body abuts against the lower end of the movable sleeve when docked with the filling pipe. A sealing protrusion is provided on the outer wall of the fixed sleeve, and the sealing protrusion fits against the wall of the first hole. A cavity is formed below the sealing protrusion between the movable sleeve and the fixed sleeve, and an air hole communicating with the cavity is formed in the movable sleeve.

[0022] As a further improvement of the present invention, a limit fixing ring is sleeved on the fixed sleeve above the movable sleeve. The limit fixing ring forms an annular extension part extending longitudinally downward to extend into the first hole, and the annular extension part fits against the wall of the first hole and the outer wall of the fixed sleeve respectively.

[0023] As a further improvement of the present invention, a cup dropping station is further provided on the rack before the powder filling station. A cup dropping device corresponding to the cup dropping station is installed on the rack for separating the stacked cup bodies and making the separated single cup body fall into the hanging through hole. The cup dropping device includes:

[0024] A cup dropping rack;

[0025] A cup storage cylinder vertically arranged on the cup dropping rack, and a cup dropping through hole is opened at the lower end of the cup storage cylinder;

[0026] A cup separating assembly, the cup separating assembly includes a moving frame, a moving cylinder for driving the moving frame to perform reciprocating linear movement in a first direction, and a first cutting plate and a second cutting plate symmetrically arranged on the moving frame;

[0027] On one side of the first cutting plate adjacent to the second cutting plate in a second direction, a first cutting knife group is provided. The first cutting knife group includes two horizontally arranged first cutting knives, and the two first cutting knives are arranged in sequence along the first direction, and the two first cutting knives are staggeredly distributed in the vertical direction. On one side of the second cutting plate adjacent to the first cutting plate in the second direction, a second cutting knife group is provided. The second cutting knife group includes two horizontally arranged second cutting knives, and the two second cutting knives are distributed in one-to-one correspondence with the two first cutting knives. The second direction and the first direction are perpendicular to each other in the same plane.

[0028] As a further improvement of the present invention, a sealing film punching and welding station is further provided on the rack after the water separating film punching and welding station, and a first punching and welding device corresponding to the water separating film punching and welding station and a second punching and welding device corresponding to the sealing film punching and welding station are installed on the rack;

[0029] The first punching and welding device is used for punching the water separating film and completing the welding of the water separating film and the cup body, and the second punching and welding device is used for punching the sealing film and completing the welding of the sealing film and the cup body.

[0030] As a further improvement of the present invention, the first punching and welding device and the second punching and welding device have the same structure, and specifically include a punching and welding bracket, a punching and welding device located inside the punching and welding bracket, and a film guiding device for guiding the film. A bottom plate for limiting is arranged below the punching and welding device inside the punching and welding bracket.

[0031] The punching and welding device includes a film pressing assembly, a film cutting assembly, a welding assembly, a lifting seat, and a lifting driving mechanism for driving the lifting seat to move up and down;

[0032] Among them, the film pressing assembly includes a pressing plate and a first adjusting cylinder. The first adjusting cylinder is fixed on the lifting seat, and the piston rod of the first adjusting cylinder extends downward. The pressing plate is connected to the end of the piston rod of the first adjusting cylinder.

[0033] The film cutting assembly includes a film cutting tool holder, a film cutting tool, and a second adjusting cylinder. The second adjusting cylinder is fixed on the lifting seat, and the piston rod of the second adjusting cylinder extends downward. The film cutting tool is connected to the film cutting tool holder, and the film cutting tool holder is fixedly connected to the piston rod of the second adjusting cylinder; In the initial state, the pressing plate is located below the film cutting tool, and the film cutting tool is located below the welding head in the welding assembly.

[0034] As a further improvement of the present invention, a second sealing film welding station is further provided on the frame after the sealing film punching and welding station, and a second sealing film welding device corresponding to the second sealing film welding station is installed on the frame for performing supplementary welding on the sealed product to improve airtightness.

[0035] As a further improvement of the present invention, a sorting station is further provided on the frame after the second sealing film welding station, and a sorting device corresponding to the sorting station is installed on the frame for realizing the sorting of products.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] In the powder filling system of the present invention, the driving component in the filling device at the powder filling station drives the screw to rotate rapidly, and under the action of the rapid rotation of the screw, the powder in the metering hopper is effectively filled into the cup below the filling head to complete the filling of the powder. After the filled cup is weighed when full, the powder in the cup is leveled and the powder on the cup edge is cleaned by the powder leveling and cleaning component. With such a setting, the powder filling system of the present invention not only has a simple structure and a fast powder filling speed, but also can level the powder in the cup and clean the powder on the cup edge in time through the powder leveling and cleaning component, thereby preventing the uneven surface of the powder in the cup and the powder on the cup edge from affecting the film sealing effect of the cup filled with powder and resulting in poor product quality. Description of the Drawings

[0038] Figure 1 Schematic structural diagram of a powder filling system according to an embodiment of the present invention;

[0039] Figure 2 Schematic structural diagram of a cup support assembly;

[0040] Figure 3 Schematic front view of a cup dropping device according to an embodiment of the present invention;

[0041] Figure 4 Schematic side view of a cup dropping device according to an embodiment of the present invention;

[0042] Figure 5 Schematic bottom view of a cup dropping device according to an embodiment of the present invention;

[0043] Figure 6 Schematic structural diagram of a first cutting knife according to an embodiment of the present invention;

[0044] Figure 7 Schematic structural diagram of a filling device according to an embodiment of the present invention;

[0045] Figure 8 Schematic exploded view of a powder filling mechanism according to an embodiment of the present invention;

[0046] Figure 9 Schematic connection structural diagram of a filling head and an anti-hanging cup assembly;

[0047] Figure 10 For Figure 9 Schematic enlarged structural diagram at position A in

[0048] Figure 11 Schematic structural diagram of a powder leveling and cleaning assembly according to an embodiment of the present invention;

[0049] Figure 12 For Figure 11 Schematic cross-sectional view in the C-C direction in

[0050] Figure 13 For Figure 12 Schematic enlarged view at position D in

[0051] Figure 14 Schematic front view of a first punching, cutting and welding device according to an embodiment of the present invention;

[0052] Figure 15 Schematic side view of a first punching, cutting and welding device according to an embodiment of the present invention;

[0053] Figure 16 Schematic cross-sectional view of a first punching, cutting and welding device according to an embodiment of the present invention;

[0054] Figure 17 For Figure 14 The schematic enlarged structure diagram at position B in

[0055] Figure 18 The schematic structure diagram of the sorting device according to an embodiment of the present invention;

[0056] Figure 19 The schematic communication principle structure diagram of the sorting device according to an embodiment of the present invention. Detailed implementation manners

[0057] The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. It should be noted, however, that these embodiments are not intended to limit the present invention. Any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present invention.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "positive direction", "negative direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0059] Please refer to Figures 1 to 19 The specific implementation manner of a powder filling system of the present invention shown.

[0060] Please refer to Figure 1 As shown, in this embodiment, a powder filling system includes: a frame 1, on which a chain plate conveyor line is installed. Hanging through holes for hanging cup bodies are opened on the chain plates of the chain plate conveyor line. Six workstations can be arranged on the frame 1 along the conveying direction of the chain plate conveyor line, which are in sequence the cup dropping workstation, the powder filling workstation, the water separation film punching and welding workstation, the sealing film punching and welding workstation, the sealing film secondary welding workstation, and the sorting workstation.

[0061] The powder filling system includes: a cup dropping device 2, installed on the frame 1 and corresponding to the cup dropping station, for separating the stacked cups and dropping the separated single cups into the hanging through holes; a filling device 3, installed on the frame 1 and corresponding to the powder filling station, for achieving precise filling of the powder; a first punching, cutting and welding device 4, installed on the frame 1 and corresponding to the water separation film punching and welding station, for punching the water separation film and completing the welding of the water separation film to the cup; a second punching, cutting and welding device 5, installed on the frame 1 and corresponding to the sealing film punching and welding station, for punching the sealing film and completing the welding of the sealing film to the cup; a sealing film secondary welding device 6, installed on the frame 1 and corresponding to the sealing film secondary welding station, for performing supplementary welding on the sealed product to improve airtightness; and a sorting device 7, installed on the frame 1 and corresponding to the sorting station, for sorting the products.

[0062] Tray components are provided at the cup dropping station, the powder filling station, the water separation film punching and welding station, the sealing film punching and welding station, and the sealing film secondary welding station. As Figure 2 shown, the tray component involved in this embodiment includes a tray frame 101, a cup tray fixing plate 102, and a cup tray 103 for positioning and fixing the cup. An elevating cylinder 104 for driving the cup tray fixing plate 102 to move up and down is installed on the tray frame 101, and the cup tray 103 is fixed to the cup tray fixing plate 102.

[0063] An optoelectronic sensor for detecting whether the cup has fallen into the hanging cup through hole, an electrostatic eliminator for eliminating the static electricity on the cup, an ultraviolet lamp for disinfecting the cup, and an empty cup weighing assembly for weighing the weight of the cup are sequentially arranged on the frame 1 between the cup dropping station and the powder filling station. A full cup weighing assembly and a powder leveling and cleaning assembly for leveling the cup mouth and cleaning the cup edge are sequentially arranged on the frame 1 between the powder filling station and the water separation film punching and welding station. The full cup weighing assembly 8 includes a separating frame, a weighing drive assembly for driving the separating frame to move up and down. A separating cup tray for fixing the cup is fixedly installed on the separating frame, and a weighing sensor is installed on the separating cup tray. Before the powder filling station, there is also an empty cup weighing assembly 10, and the empty cup weighing assembly 10 has the same structure as the full cup weighing assembly 8. The empty cup weighing assembly and the full cup weighing assembly have the same structure, and specifically include a separating frame, a weighing drive assembly for driving the separating frame to move up and down. A separating cup tray for fixing the cup is fixedly installed on the separating frame, and a weighing sensor is installed on the separating cup tray. The weighing drive assembly includes a weighing motor and a crank and connecting rod mechanism.

[0064] Please refer to Figures 3 to 6As shown in the figure, in this embodiment, the cup dropping device 2 includes: a cup dropping frame 201; a cup storage cylinder 202 vertically arranged on the cup dropping frame 201. A feed slot 203 for the cup body to enter may be opened on the side wall of the cup storage cylinder 202, and a cup dropping through hole 2021 is opened at the lower end of the cup storage cylinder 202; a cup separating assembly, which includes a moving frame 207, a moving cylinder 206 for driving the moving frame 207 to perform reciprocating linear movement in a first direction, and a first cutting plate 208 and a second cutting plate 209 symmetrically arranged on the moving frame 207. The cup dropping device further includes: an upper cup cylinder 204 inclinedly arranged on the cup dropping frame, and the upper end of the upper cup cylinder 204 is communicated with the feed slot 203. In order to facilitate pushing the cup body in the upper cup cylinder 204 into the cup storage cylinder 202 through the feed slot 203, the inclination angle of the upper cup cylinder 204 can be configured to be 50° - 70°. A baffle 205 is provided at the lower end of the upper cup cylinder 204. Among them, the moving direction of the moving frame 207 is defined as the first direction, and the direction perpendicular to the first direction in the same plane is defined as the second direction.

[0065] Among them, on the side of the first cutting plate 208 adjacent to the second cutting plate 209 in the second direction, a first cutting knife group is provided. The first cutting knife group includes two horizontally arranged first cutting knives 210. The two first cutting knives 210 are arranged in sequence along the first direction, and the two first cutting knives 210 are staggeredly distributed in the vertical direction. On the side of the second cutting plate 209 adjacent to the first cutting plate 208 in the second direction, a second cutting knife group is provided. The second cutting knife group includes two horizontally arranged second cutting knives 211. The two second cutting knives 211 are distributed in one-to-one correspondence with the two first cutting knives 210. The second direction and the first direction are perpendicular in the same plane.

[0066] The first direction involved in this embodiment is Figure 3 or Figure 5 the x-axis direction in, and the second direction is the z-axis direction in Figure 3 or Figure 5 in, and the vertical direction is Figure 3 or Figure 5 the y-axis direction in.

[0067] After the cup dropping device of this embodiment pushes the cups in the upper cup cylinder 204 into the storage cup cylinder 202, the stacked cups fall through the cup dropping through hole 2021 at the lower end of the storage cup cylinder 202, and are supported by the first cutter 210 above the first cutter plate 209 and the second cutter 211 above the second cutter plate 209. When the moving cylinder drives the moving frame 207 to drive the first cutter plate 208 and the second cutter plate 209 to move to the right, the stacked cups will continue to fall and be supported by the first cutter 210 below the first cutter plate 208 and the second cutter 211 below the second cutter plate 209. When the moving cylinder 206 drives the moving frame 207 to move leftward to reset, the first cutter 210 above the first cutter plate 208 and the second cutter 211 above the second cutter plate 209 are inserted into the gap between adjacent stacked cups to support the stacked cups above the lowermost cup. At the same time, since the first cutter 210 below the first cutter plate 208 and the second cutter 211 below the second cutter plate 209 move leftward, the lowermost cup has no support and thus freely falls under the action of its own gravity, thereby achieving the separation of the stacked cups and the purpose of cup dropping. Thus, the problem in the prior art that it is difficult to separate stacked cups and resulting in low cup dropping efficiency is solved.

[0068] To improve the cup dropping efficiency, multiple storage cup cylinders 202 can be configured, and the multiple storage cup cylinders 202 are arranged side by side in the horizontal direction on the cup dropping frame 201. The number of the first cutter groups and the second cutter groups both matches the number of the storage cup cylinders 202, and each first cutter group and each second cutter group are respectively opposite to the position of the corresponding storage cup cylinder 202. The number of the upper cup cylinders 204 matches the number of the storage cup cylinders 202, and the upper ends of each upper cup cylinder 204 are respectively communicated with the feeding trough openings 203 of the corresponding storage cup cylinders 202. In this way, the stacked cups in the multiple storage cup cylinders 202 fall through the cup dropping through holes 2021 to the corresponding first cutter groups and second cutter groups to support the cups, and the free fall of the lowermost cup in the stacked cups is achieved through the support and displacement of two of the first cutters 210 and two of the second cutters 211, thereby achieving the purpose of rapid cup separation and cup dropping. In Figure 3 the embodiment, two storage cup cylinders 202 are configured. Of course, the number of the storage cup cylinders 202 can be set according to the requirements of the actual working conditions, and is not limited to the scope defined in this embodiment.

[0069] To ensure smooth cup separation, as Figure 6 shown, guiding inclined portions 2100 are provided at the ends of the first cutter 210 and the ends of the second cutter 211 to facilitate insertion into the gap between adjacent cups. It should be noted that the structure and shape of the second cutter 211 formed in the second cutter plate 209 are both the same as Figure 6The structure and shape of the first cutter 210 formed in the first cutter plate 208 are the same.

[0070] Furthermore, the number of the cup holders 103 in the cup holder assembly arranged below the cup separating assembly matches the number of the cup storage cylinders 202, so that each cup holder can respectively receive the cup bodies that fall from the cup dropping through holes 2021 of the cup storage cylinders 202 and are separated and dropped by the cup separating assembly. With such a setting, when the lowermost cup body in the stacked cup bodies freely falls under its own gravity through the cup separating assembly, by activating the lifting cylinder 104 of the cup holder assembly, the cup holder 103 is driven to move upward to catch the falling cup body. The cup body falls into the cup holder 103 and is tightly adsorbed by the suction head for subsequent use. Thereby ensuring that the falling cup body reliably falls into the cup holder 103 in the cup holder assembly.

[0071] Combined with Figures 7 to 10 For illustration, in this embodiment, the filling device 3 includes a vacuum feeding machine 301, a buffer hopper 302, a horizontal conveying mechanism 303, and a powder filling mechanism 304 that are connected in sequence. Among them, the horizontal conveying mechanism 303 is a screw conveyor, which can be arranged below the buffer hopper 302. A first level sensor 305 is provided on the buffer hopper 302.

[0072] Combined with Figure 7 and Figure 8 For illustration, the powder filling mechanism 304 includes a filling frame 3041, a metering hopper 306, a power box 3042, and a filling head 3043. The metering hopper 306 is installed on the filling frame 3041, and the horizontal conveying mechanism 303 is communicated with the metering hopper 306. The filling head 3043 is arranged at the lower end of the metering hopper 306. The filling head 3043 includes a filling pipe 307 and a screw 315 arranged in the filling pipe 307. The power box 3042 is installed on the upper part of the metering hopper 306, and a driving assembly for driving the screw 315 to rotate is installed in the power box 3042. A second level sensor 314 is also provided on the powder filling mechanism 304, which can be arranged in the power box 3042 to detect the height of the powder in the metering hopper 306 and replenish the powder in real time to ensure the relative stability of the powder level height in the metering hopper 306, thereby ensuring the filling accuracy and improving the filling effect of the powder. The powder filling mechanism 304 further includes an anti-hanging cup assembly 316 arranged outside the filling pipe 307 and used for separating the cup body from the filling pipe 307.

[0073] Among them, two or more filling heads 3043 are configured, and the two or more filling heads 3043 are arranged side by side in the horizontal direction at the lower end of the metering hopper 306; the number of the driving assemblies matches the number of the filling heads 3043. In Figure 8 or Figure 9In the embodiment, two filling heads 3043 are configured, and correspondingly two driving components are also configured. The two driving components are respectively connected to the two filling heads 3043. It should be noted that the number of filling heads 3043 can be set according to the actual working conditions. For example, the filling heads 3043 can be set to one, three, four, five, etc., and are not limited to the scope defined in this embodiment.

[0074] To improve the installation stability of the horizontal conveying mechanism 303, the filling rack 3041 is configured with a mounting plate 3044, and the mounting plate 3044 is configured with a support frame 3045. The horizontal conveying mechanism 303 is horizontally placed on the support frame 3045, and the discharge end of the horizontal conveying mechanism 303 is communicated with the feed end 3061 of the metering hopper 306 located on the mounting plate 3044. Further, a conical mounting portion 3046 is arranged at the end of the support frame 3045, and a fixing ring 3047 for fixing the horizontal conveying mechanism 303 is formed on the mounting surface of the conical mounting portion 3046, so as to quickly realize the fixed connection of the horizontal conveying mechanism 303 through the fixing ring 3047 and further improve the stability of the horizontal conveying mechanism 303 during the working process. Among them, the mounting plate 3044 is arranged on the opening surface 3062 of the metering hopper 306, and the mounting plate 3044 is detachably connected to the metering hopper 306.

[0075] The driving component includes a filling servo motor 309, a filling speed reducer 310 and a driving rod 308 arranged in the metering hopper 306. The output end of the filling servo motor 309 is drivingly connected to the input end of the filling speed reducer 310, and the output end of the filling speed reducer 310 is drivingly connected to the upper end of the driving rod 308. The upper end of the screw 315 extends into the metering hopper 306, and the upper end of the screw 315 is fixedly connected to the lower end of the driving rod 308. In this way, the filling servo motor 309 drives the filling speed reducer 310 to drive the driving rod 308 to rotate, so as to drive the screw 315 to rotate at a high speed through the driving rod 308, and quickly realize the process of filling the powder.

[0076] The powder filling mechanism 304 further includes a stirring component. The stirring component includes a stirring motor 311, a stirring shaft 312 and stirring blades 313. The stirring motor 311 is installed in the power box 3042. The stirring shaft 312 is drivingly connected to the output shaft of the stirring motor 311 through a gear component. The stirring blades 313 are installed on the stirring shaft 312, and the stirring blades 313 are located in the metering hopper 306. It can be seen that during the process of the driving component driving the screw 315 to rotate, the stirring motor 311 drives the stirring shaft 312 to rotate to drive the stirring blades 313 to rotate in the metering hopper 306, which can avoid the powder sticking to the inner wall of the metering hopper 306 during the filling process and effectively ensure the stability and reliability of the powder filling.

[0077] It should be understood that the filling device 3 of this embodiment stably and effectively conveys the powder in the buffer hopper 302 to the metering cone hopper 306 through the horizontally arranged conveying mechanism 303, and drives the screw 315 in the filling head 3043 to rotate rapidly through the driving assembly in the power box 3042. Under the action of the rapid rotation of the screw 315, the powder is effectively filled into the cup body below the filling head 3043. It can be seen that the filling system of this embodiment not only has a simple structure, but also has a fast filling speed for the powder and a high filling quality for the powder, thus solving the problems of the complex structure and low filling efficiency of the existing capsule coffee filling device.

[0078] As Figure 9 shown, the filling pipe 307 includes a conical pipe 3071 in the upper part and a straight pipe 3072 in the lower part. The inner diameter of the conical pipe 3071 decreases sequentially from top to bottom, and the upper end of the conical pipe 3071 is connected to the discharge port of the metering cone hopper 306, and the lower end of the conical pipe 3071 is connected to the upper end of the straight pipe 3072. With such a setting, when filling the cup body with powder, the powder entering the filling pipe 307 passes through the conical pipe 3071 and the straight pipe 3072 in sequence, so that the density of the powder entering the cup body is increased. Thus, the compactness of the filled powder is increased.

[0079] In the above embodiment, in combination with Figure 9 and Figure 10 it is described that an anti-cup-hanging component 316 is installed at the lower part of the filling pipe 307. Among them, the anti-cup-hanging component 316 includes: a fixed sleeve 317 fixed to the outer part of the straight pipe of the filling pipe 307; a movable sleeve 318 sleeved on the outer part of the fixed sleeve 317 and capable of moving up and down. A socket hole is provided on the movable sleeve 318. The socket hole includes a first hole 3181 in the upper part and a second hole 3182 located below the first hole 3181 and communicating with the first hole 3181. The aperture size of the second hole 3182 matches the outer diameter size of the fixed sleeve 317, so that the hole wall of the second hole 3182 is arranged in fit with the outer wall of the fixed sleeve 317. And, the aperture of the first hole 3181 is larger than the outer diameter of the fixed sleeve 317. The hole wall of the second hole 3182 is connected in fit with the outer wall of the fixed sleeve 317 through at least one sealing ring 3183. Among them, the outer edge 1032 of the cup body 1031 when docked with the filling pipe 307 abuts against the lower end of the movable sleeve 318. A sealing convex part 321 is provided on the outer wall of the fixed sleeve 317, and the sealing convex part 321 fits on the hole wall of the first hole 3181. A cavity 322 is formed below the sealing convex part 321 between the movable sleeve 318 and the fixed sleeve 317. An air hole 3191 communicating with the cavity 322 is opened on the movable sleeve 318. The air hole 3191 is provided with an inflation joint 319. The number of the air holes 3191 is configured to be one.

[0080] Among them, a plurality of sealing protrusions 321 are arranged, and a seal 3211 is arranged in the cavity formed between the adjacent sealing protrusions 321 and the hole wall of the first hole 3181. A cavity 322 is formed between the lowermost sealing protrusion 321, the movable sleeve 318, and the fixed sleeve 317.

[0081] It should be noted that the outer wall diameter of the fixed sleeve 317 is smaller than the flaring size of the flared portion of the cup body, and the outer wall diameter of the movable sleeve 318 is not smaller than the outer edge diameter of the cup body 1031.

[0082] It can be understood that air pressure can be input into the cavity 322 through the air hole 3191 (for example, connecting 0.1 MPa of air pressure at the air filling joint 319), and then the lifting cylinder 104 of the cup support assembly at the powder filling station is used to drive the cup support 103 to rise, so that the cup body in the cup support 103 is docked with the filling pipe 307. During the continuous upward movement of the cup body, since the outer edge 1032 of the cup body abuts against the lower end of the movable sleeve 318, the upward movement of the cup body will drive the movable sleeve 318 to move upward. After the filling is completed, the lifting cylinder of the cup support assembly at the powder filling station descends. Due to the compression of the gas inside the cavity 322, the movable sleeve 318 extends downward under the action of the air pressure, driving the cup body 1031 to move downward, so that the cup body 1031 is reliably separated from the filling pipe 307, avoiding the phenomenon of dripping. Thus, the problem that the cup body and the filling head in the prior art are difficult to be reliably separated and the phenomenon of dripping occurs is solved.

[0083] Furthermore, a limit fixing ring 320 is sleeved on the fixed sleeve 317 and is located above the movable sleeve 318. The limit fixing ring 320 is formed with an annular extension portion 3201 that extends longitudinally downward and extends into the first hole 3181, and the annular extension portion 3201 is respectively in contact with the hole wall of the first hole 3181 and the outer wall of the fixed sleeve 317. The limit fixing ring 320 is also formed with an annular protrusion portion 3202 that extends longitudinally upward and is in contact with the outer wall of the fixed sleeve 317. With such a setting, after the cup body 1031 is docked with the filling pipe 307 and the cup body continues to rise, the outer edge 1032 of the cup body drives the movable sleeve 318 to move upward until the movable sleeve 318 abuts against the limit fixing ring 320, thereby limiting the upward movement dimension of the movable sleeve 318.

[0084] Combined with Figures 11 to 13The powder leveling and cleaning assembly 9 will be described. The powder leveling and cleaning assembly 9 includes a leveling head 91, a leveling air cylinder 92 for driving the leveling head 91 to move up and down, a sealing cover 93, a pressing air cylinder 94 for pressing the sealing cover 93 against the chain plate of the chain conveyor line, and a suction fan (not shown in the figure). After the cup filled with powder is conveyed by the chain plate conveyor line and reaches the station corresponding to the powder leveling and cleaning assembly, the leveling air cylinder 92 drives the leveling head 91 to press on the powder in the cup 1031 to level the powder. At the same time, the pressing air cylinder 94 presses the sealing cover 93 against the chain plate, and the suction fan (not shown in the figure) is turned on to suck away the powder on the cup rim.

[0085] In the powder leveling and cleaning assembly 9 of this embodiment, after the powder is filled into the cup 1031 by the filling device 3 at the powder filling station and the cup is weighed full cup by the full cup weighing assembly, the leveling air cylinder 92 drives the leveling head 91 to press on the powder in the cup 1031 to level the powder. At the same time, the pressing air cylinder 94 presses the sealing cover 93 to suck away the powder on the cup rim through the suction fan, so as to achieve the purpose of cleaning the cup rim. With such a setting, the powder leveling and cleaning assembly 9 of this embodiment can level the powder in the cup in time and clean the powder on the cup rim, thereby preventing the surface of the powder in the cup from being uneven and the presence of powder on the cup rim from affecting the film sealing effect of the cup filled with powder, resulting in poor product quality.

[0086] Specifically, a transmission rod 95 connected to the leveling air cylinder 92 penetrates through the sealing cover 93. The transmission rod 95 partially penetrates the leveling head 91. One end of the leveling head 91 for the transmission rod 95 to penetrate is embedded in the sealing cover 93, and the sealing cover 93 is communicated with the pipeline 96 of the suction fan. Among them, the pipeline 96 is connected to the suction fan through the housing 97. The leveling head 91 forms a receiving cavity for receiving the end of the transmission rod 95. The transmission rod 95 forms a cavity communicated with the receiving cavity, and the side wall of the leveling head 91 forms a plurality of ventilation holes 911 communicated with the receiving cavity. When the leveling head 91 is located in the cup 1031, the ventilation holes 911 are communicated with the sealed cavity of the sealing cover 93.

[0087] With such a setting, when the leveling air cylinder 92 drives the transmission rod to drive the leveling head 91 to move up and down, the leveling head 91 presses on the powder in the cup 1031 lifted upward by the cup supporting 103 in the cup supporting assembly. On the one hand, the leveling head 91 can level the powder; on the other hand, during the downward movement of the leveling head 91, the high-pressure gas formed in the transmission rod 95 is squeezed into the receiving cavity of the leveling head 91 and is squeezed out through the ventilation holes 911 onto the inner wall of the cup 1031 to blow the powder on the inner wall of the cup 1031 into the sealing cover 93. The suction fan sucks away the dust on the cup rim and in the sealing cover 93 through the pipeline 96 to achieve the purpose of cleaning the cup rim and the cup wall above the powder in the cup.

[0088] Combined with Figures 14 to 17For illustration, in this embodiment, the first punching and welding device 4 and the second punching and welding device 5 have the same structure, and specifically include a punching and welding bracket 401, a punching and welding device located inside the punching and welding bracket 401, and a film guiding device for guiding the film. The film guiding device includes a film winding roller, a first guiding roller 413, a second guiding roller 414, and a film guiding servo motor 415. The film winding roller is rotatably connected to the upper part of the punching and welding bracket 401 and is driven to rotate by the film guiding servo motor 415. The first guiding roller 413 is located at the front end of the punching and welding bracket 401, and the second guiding roller 414 is located at the rear end of the punching and welding bracket 401. A bottom plate 402 for limiting is provided below the punching and welding device inside the punching and welding bracket 401. The punching and welding device includes a film pressing assembly, a film cutting assembly, a welding assembly, a lifting seat 403, and a lifting driving mechanism for driving the lifting seat 403 to move up and down.

[0089] The lifting driving mechanism includes a lifting driving motor 408, a driving shaft 409, a transmission block 410, and a connecting rod 412. The connecting rod 412 is fixed to the lifting seat 403. The driving shaft 409 is rotatably installed on the punching and welding bracket 401 and is driven to rotate by the lifting driving motor 408. The transmission block 410 is fixed to the driving shaft 409, and one end of the transmission block 410 is connected to the connecting rod 412 through a spherical plain bearing 411. The film pressing assembly includes a pressing plate 404 and a first adjusting cylinder 405. The first adjusting cylinder 405 is fixed to the lifting seat 403, and the piston rod of the first adjusting cylinder 405 extends downward. The pressing plate 404 is connected to the end of the piston rod of the first adjusting cylinder 405.

[0090] The film cutting assembly includes a film cutting tool holder 419, a film cutting tool 416, and a second adjusting cylinder 418. The second adjusting cylinder 418 is fixed to the lifting seat 403, and the piston rod of the second adjusting cylinder 418 extends downward. The film cutting tool 416 is connected to the film cutting tool holder 419, and the film cutting tool holder 419 is fixedly connected to the piston rod of the second adjusting cylinder 418. The welding assembly includes a welding head 417, a heat insulation sleeve 406, and a third adjusting cylinder 407. The welding head 417 is connected to the lower end of the heat insulation sleeve 406, the upper end of the heat insulation sleeve 406 is fixed to the third adjusting cylinder 407, the piston rod of the third adjusting cylinder 407 extends upward, and the end of the piston rod of the third adjusting cylinder 407 is fixedly connected to the lifting seat 403. A through hole for the welding head 417 to pass through is provided on the film cutting tool 416. In the initial state, the pressing plate 404 is located below the film cutting tool 416, and the film cutting tool 416 is located below the welding head 417.

[0091] In this embodiment, the pressing plate 404 includes a steel plate at the upper part and a food-grade PP plate at the lower part. By using the soft food-grade PP plate, sufficient tension can be applied to the film.

[0092] In this embodiment, the film cutting knife 416 has an annular structure, and the cutting edge of the film cutting knife 416 has a serrated structure.

[0093] It should be understood that when the film guiding device is started, the film enters into the punching and welding bracket 401 through the first guide roller 413 and is located between the bottom plate 402 and the punching and welding device. At the same time, the lifting cylinder 104 of the cup supporting component drives the cup holder 103 to rise, thereby driving the cup body on the chain plate to move upward. Then, the lifting drive motor 408 is started to drive the lifting seat 403 to move downward, thereby driving the whole punching and welding device to move downward. When the whole punching and welding device moves downward, since the pressing plate 404 is at the lowest position, the film pressing component acts first. The pressing plate 404 moves downward until it touches the bottom plate 402, and the pressing plate 404 and the bottom plate 402 cooperate to press the film tightly. At this time, the pressing plate 404 cannot move downward continuously, and the pressing plate 404 will compress the piston rod of the first adjusting cylinder 405. At this time, the lifting seat 403 continues to move downward to drive the film cutting component and the welding component to move downward. Immediately afterwards, the film cutting component starts to act, and the film cutting knife 416 cuts the film. After cutting the film, the film cutting knife 416 cannot move downward continuously, and then compresses the piston rod of the second adjusting cylinder 418. At this time, the lifting seat 403 continues to move downward. Finally, the welding component starts to act, and it welds the film and the cup body through the welding head 417. After welding is completed, the lifting seat 403 moves upward, the lifting cylinder 104 of the cup supporting component drives the cup holder 103 to move downward, and the film guiding servo motor 415 drives the film winding roller to work, thereby driving the film to move and continuing the next operation.

[0094] Specifically, in this embodiment, the secondary welding device 6 for the sealing film includes a welding frame, a welding cylinder and a welding head. The welding cylinder is installed on the welding frame, and the welding head is driven by the welding cylinder to move up and down.

[0095] Combined Figure 18 and Figure 19 are described. The sorting device 7 includes a manipulator 71, a grasping cylinder 72 and a sorting suction cup 73. The grasping cylinder 72 is installed on the manipulator 71, and the piston rod of the grasping cylinder 72 extends downward. The sorting suction cup is fixed to the end of the piston rod of the grasping cylinder 72.

[0096] The powder filling system of this embodiment further includes: a photoelectric sensor 74 for detecting whether the cup body falls into the cup-hanging through hole. Specifically, the photoelectric sensor 74 can be arranged before the powder filling station. After determining that the cup body has fallen into the cup-hanging through hole according to the signal detected by the photoelectric sensor 74, the filling device 3 located at the powder filling station fills the cup body. The powder filling system further includes a visual inspection device 75 for detecting the welding concentricity of the cup body and the surface condition of the water separation film. The visual inspection device 75 can be arranged before the sorting station, and before sorting the products, the first punching and welding device 4 corresponding to the water separation film punching and welding station punches the water separation film and completes the welding of the water separation film and the cup body. Specifically, the first visual inspection device can be arranged on the frame 1 between the water separation film punching and welding station and the sealing film punching and welding station.

[0097] In this embodiment, the visual inspection device 75 converts the captured target into an image signal through a CCD, transmits it to a dedicated image processing system, and according to information such as pixel distribution, brightness, and color, converts it into a digital signal. The image system performs various operations on these signals to extract the features of the target, and then controls the actions of the on-site equipment according to the discrimination results; it is prior art and will not be elaborated here. The manipulator 71 can be configured with a controller 76 for analyzing the signals given by the photoelectric sensor 74 and the visual inspection device 75 to determine whether there are defective products, and a motor 77 for controlling the operation of the manipulator 71 according to the control signal of the controller 76. Among them, the process or method in which the controller 76 respectively receives the detection signals of the photoelectric sensor 74 and the visual inspection device 75, analyzes and judges whether there are defective products according to the detection signals of the photoelectric sensor 74 and the visual inspection device 75, and controls the motor 77 to work is well-known technology in this field and will not be elaborated in detail.

[0098] When the sorting device 7 is sorting, the controller 76 analyzes the signals given by the photoelectric sensor 74 and the visual inspection device 75 to determine whether there are defective products. If it is a good product, it controls the motor 76 to drive the manipulator 71 to drive the grasping cylinder 72 to move above the cup body on the chain plate conveyor line, and the grasping cylinder 72 drives the sorting suction cup 73 to move down to adsorb the cup body. After the adsorption is completed, the manipulator 71 moves, driving the sorting suction cup 73 to move to the transfer conveyor line, while the defective products automatically fall with the flipping of the chain plate conveyor line. There is a waste bin at the end of the chain plate conveyor line for collecting the falling defective products.

[0099] Specifically, in this embodiment, the chain plate conveyor line includes a conveying frame, a cam divider, a variable frequency motor, a driving sprocket, a driven sprocket, a conveying chain, and chain plates installed on the conveying frame. The conveying chain is wound around the driving sprocket and the driven sprocket. The output end of the variable frequency motor is drivingly connected to the input end of the cam divider through a coupling. The output end of the cam divider is drivingly connected to the driving sprocket through a sprocket chain assembly. The chain plates are fixedly connected to the conveying chain. By adopting the above structural design, the step-by-step conveying of the chain plate conveyor line can be achieved.

[0100] It should be noted that the "powder" involved in this embodiment can be powder or solid particles, such as powdered objects like coffee powder, milk powder, flour, etc., and will not be exemplified one by one here.

[0101] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

[0102] In addition, it should be understood that although this specification is described according to the implementation manners, not every implementation manner only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A powder filling system, characterized in that, Including: A frame installed with a chain plate conveyor line, on which a powder filling station and a water separation membrane punching and welding station are sequentially arranged along the conveying direction of the chain plate conveyor line; A filling device, installed on the frame and corresponding to the powder filling station, for realizing precise filling of powder. The filling device includes a filling frame installed with a metering hopper, a filling head is arranged at the lower end of the metering hopper. The filling head includes a filling pipe and a screw arranged in the filling pipe. The filling device further includes a driving component for driving the screw to rotate and an anti-hanging cup component arranged outside the filling pipe and used for separating the cup body from the filling pipe; A powder leveling and cleaning component for leveling the cup mouth and cleaning the cup edge is arranged on the frame between the powder filling station and the water separation membrane punching and welding station; The anti-hanging cup component includes: A fixed sleeve fixed to the outer straight pipe of the filling pipe; A movable sleeve sleeved outside the fixed sleeve and capable of moving up and down. A socket hole is arranged on the movable sleeve. The socket hole includes a first hole at the upper part and a second hole at the lower part of the first hole and communicating with the first hole. The aperture size of the second hole matches the outer diameter size of the fixed sleeve, and the aperture of the first hole is larger than the outer diameter of the fixed sleeve; Wherein, the outer edge of the cup body when butted with the filling pipe abuts against the lower end of the movable sleeve, and a sealing protrusion is arranged on the outer wall of the fixed sleeve, and the sealing protrusion fits on the hole wall of the first hole. A cavity is formed between the movable sleeve and the fixed sleeve below the sealing protrusion, and an air hole communicating with the cavity is opened on the movable sleeve; The fixed sleeve is sleeved with a limit fixing ring located above the movable sleeve. The limit fixing ring forms an annular extension part extending longitudinally downward to extend into the first hole, and the annular extension part respectively fits with the hole wall of the first hole and the outer wall of the fixed sleeve.

2. The powder filling system according to claim 1, characterized in that, The powder leveling and cleaning component includes a leveling head, a leveling air cylinder for driving the leveling head to move up and down, a sealing cover, a pressing air cylinder for pressing the sealing cover against the chain plate of the chain conveyor line, and a suction fan.

3. The powder filling system according to claim 2, wherein The sealing cover penetrates through a transmission rod connected to the leveling air cylinder. The transmission rod partially penetrates through the leveling head. One end of the leveling head for the transmission rod to penetrate through is embedded in the sealing cover, and the sealing cover is communicated with the pipeline of the suction fan.

4. The powder filling system according to claim 3, wherein The leveling head forms a receiving cavity for receiving the end of the transmission rod. The transmission rod forms a cavity communicated with the receiving cavity. A plurality of ventilation holes communicated with the receiving cavity are formed on the side wall of the leveling head. When the leveling head is located in the cup body, the ventilation holes are communicated with the sealed cavity of the sealing cover.

5. The powder filling system according to claim 1, characterized in that, Before the cup mouth is leveled and the cup edge is cleaned by the powder leveling and cleaning assembly on the frame, a full cup weighing assembly for weighing the cup filled with powder is further provided. The full cup weighing assembly includes a separation frame and a weighing drive assembly for driving the separation frame to move up and down. A separation cup holder for fixing the cup is fixedly installed on the separation frame, and a weighing sensor is installed on the separation cup holder.

6. The powder filling system according to claim 5, wherein, Before the powder filling station, an empty cup weighing assembly is further included, and the structure of the empty cup weighing assembly is the same as that of the full cup weighing assembly.

7. The powder filling system according to any one of claims 1-6, characterized in that, The filling device further includes: A buffer hopper, a horizontal conveying mechanism is connected below the buffer hopper, the horizontal conveying mechanism is connected to the metering conical hopper, and a first level sensor is arranged on the buffer hopper; The drive assembly is arranged in a power box. Among them, a second level sensor for detecting the height of the powder in the metering conical hopper is arranged in the power box.

8. The powder filling system according to any one of claims 1-6, characterized in that, Before the powder filling station on the frame, a cup dropping station is further provided. A cup dropping device corresponding to the cup dropping station is installed on the frame for separating the stacked cups and making the separated single cups fall into the hanging through holes; the cup dropping device includes: A cup dropping frame; A cup storage cylinder vertically arranged on the cup dropping frame, and a cup dropping through hole is opened at the lower end of the cup storage cylinder; A cup separating assembly, the cup separating assembly includes a moving frame, a moving cylinder for driving the moving frame to reciprocate linearly in a first direction, and a first cutting plate and a second cutting plate symmetrically arranged on the moving frame; On the first cutting plate, a first cutting knife group is arranged on one side adjacent to the second cutting plate in a second direction. The first cutting knife group includes two horizontally arranged first cutting knives, and the two first cutting knives are arranged in sequence along the first direction, and the two first cutting knives are staggered in the vertical direction. On the second cutting plate, a second cutting knife group is arranged on one side adjacent to the first cutting plate in the second direction. The second cutting knife group includes two horizontally arranged second cutting knives, and the two second cutting knives are distributed in one-to-one correspondence with the two first cutting knives. The second direction and the first direction are perpendicular to each other in the same plane.

9. The powder filling system according to any one of claims 1-6, characterized in that, After the water separation film punching and welding station on the frame, a sealing film punching and welding station is further provided, and a first punching and welding device corresponding to the water separation film punching and welding station and a second punching and welding device corresponding to the sealing film punching and welding station are installed on the frame; The first punching and welding device is used for punching the water separation film and completing the welding of the water separation film and the cup, and the second punching and welding device is used for punching the sealing film and completing the welding of the sealing film and the cup.

10. The powder filling system according to claim 9, wherein The first punching and welding device and the second punching and welding device have the same structure, and specifically include a punching and welding bracket, a punching and welding device located inside the punching and welding bracket, and a film guiding device for guiding the film. A bottom plate for limiting is arranged below the punching and welding device inside the punching and welding bracket, The punching and welding device includes a film pressing assembly, a film cutting assembly, a welding assembly, a lifting seat, and a lifting drive mechanism for driving the lifting seat to move up and down; Among them, the film pressing assembly includes a pressing plate and a first adjusting cylinder. The first adjusting cylinder is fixed on the lifting seat, and the piston rod of the first adjusting cylinder extends downward. The pressing plate is connected to the end of the piston rod of the first adjusting cylinder. The film cutting assembly includes a film cutting knife seat, a film cutting knife, and a second adjusting cylinder. The second adjusting cylinder is fixed on the lifting seat, and the piston rod of the second adjusting cylinder extends downward. The film cutting knife is connected to the film cutting knife seat, and the film cutting knife seat is fixedly connected to the piston rod of the second adjusting cylinder. In the initial state, the pressing plate is located below the film cutting knife, and the film cutting knife is located below the welding head in the welding assembly.

11. The powder filling system according to claim 10, wherein, After the sealing film punching welding station, the machine frame is further provided with a secondary sealing film welding station, and a secondary sealing film welding device corresponding to the secondary sealing film welding station is installed on the machine frame for repairing and welding the sealed products to improve airtightness.

12. The powder filling system according to claim 11, wherein After the secondary sealing film welding station on the machine frame, there is further provided a sorting station, and a sorting device corresponding to the sorting station is installed on the machine frame for sorting the products.

Images