Powder filling apparatus

Abstract

The application relates to the technical field of filling equipment, and discloses a powder filling equipment, which comprises a rotating device, a bag feeding device, a bag supporting device, a filling device and a bag sealing device. The rotating device is used for clamping a packaging bag and conveying the packaging bag to different work stations. The bag feeding device, the bag supporting device, the filling device and the bag sealing device are sequentially connected to one side of the rotating device. The packaging bag is conveyed to the bag feeding device, the bag supporting device, the filling device and the bag sealing device in sequence through the rotating device. In the process that the packaging bag is moved from below the bag supporting device to below the filling device, the opening size of the packaging bag is kept by the filling device, so that the conveying and filling mechanism can be at least partially inserted into the packaging bag, thereby preventing the powder from scattering or leaking during the filling process, improving the utilization rate of the powder, and improving the use safety of the filling equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filling equipment, in particular to a powder filling equipment. BACKGROUND

[0002] In the production process of cosmetics, it is usually necessary to fill the powder cosmetics. In order to improve the filling efficiency of the cosmetics, the powder filling is usually carried out in a pipeline manner by using the filling equipment at present.

[0003] The powder filling equipment on the market has the following defects: (1) the distance between the filling port and the packaging bag is too large during powder filling, which causes the powder to scatter or leak; (2) the opening range of the packaging bag is different, which causes the powder to scatter or leak during the filling process. SUMMARY

[0004] The present application provides a powder filling equipment, which is used to prevent the powder from scattering or leaking during the filling process, improve the utilization rate of the powder, and improve the safety of the filling equipment.

[0005] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application comprises:

[0006] The present application provides a powder filling equipment for filling the powder into a packaging bag, which comprises a rotating device, a bag feeding device, a bag opening device, a filling device and a bag sealing device. The rotating device comprises a bag clamping mechanism for clamping the packaging bag and a rotating table for driving the bag clamping mechanism to move. A plurality of bag clamping mechanisms are installed on the rotating table, and the rotating table has a rotational degree of freedom with its axis as the center of rotation. The bag feeding device is located upstream of the rotating device and is used to convey the packaging bag to the bag clamping mechanism. The bag opening device is located on one side of the rotating device and downstream of the bag feeding device, and is used to open the packaging bag clamped by the bag clamping mechanism. The filling device is located on one side of the rotating device and downstream of the bag opening device. The filling device comprises a filling guide mechanism and a filling conveying mechanism. The filling guide mechanism is installed on the rotating table and has a rotational degree of freedom relative to the rotating table. The filling conveying mechanism is located above the bag clamping mechanism. The bag sealing device is located on one side of the rotating device and downstream of the filling device, and is used to seal the packaging bag clamped by the bag clamping mechanism. The filling guide mechanism comprises a guiding state of being inserted into the packaging bag and an idle state of being located outside the packaging bag. When the filling guide mechanism is in the idle state, the filling guide mechanism is located above the bag opening device. When the filling guide mechanism is switched from the idle state to the guiding state, the filling guide mechanism is at least partially inserted into the packaging bag opened by the bag opening device. The rotating table and the filling guide mechanism rotate simultaneously, so that the opened packaging bag and the filling guide mechanism move to below the filling conveying mechanism.

[0007] Further, the filling guide mechanism comprises a swing arm, a guide arm and a guide driving member, the swing arm is installed on the rotating table and has a rotation freedom relative to the rotating table; the guide arm is installed on the end of the swing arm facing the bag clamping mechanism and comprises an extension part for guiding the filling conveying mechanism along the stepping direction of the rotating table; the swing arm is installed on the guide driving member and is driven by the guide driving member to move along the circumference of the rotating table.

[0008] Further, the filling conveying mechanism comprises a filling assembly, the filling assembly is located above the bag clamping mechanism and has a lifting freedom relative to the filling guide mechanism, and the discharge port of the filling assembly is guided by the filling guide mechanism to be inserted into the packaging bag clamped by the bag clamping mechanism.

[0009] Further, the filling assembly comprises a filling funnel and a lifting driving member, the filling funnel is installed on the lifting driving member and is driven by the lifting driving member to lift relative to the filling guide mechanism.

[0010] Further, the filling conveying mechanism further comprises a hopper and a quantitative conveying assembly, the hopper is connected with the filling assembly through the quantitative conveying assembly; and the quantitative conveying assembly at least partially extends into the filling assembly, and the filling assembly has a lifting freedom relative to the quantitative conveying assembly.

[0011] Further, the quantitative conveying assembly comprises a conveying channel and a spiral column, the spiral column is installed in the conveying channel and has a rotation freedom relative to the conveying channel, and the amount of powder flowing through the conveying channel is controlled by controlling the rotation angle of the spiral column.

[0012] Further, the bag clamping mechanism at least partially extends out of the rotating table, so that the packaging bag clamped on the bag clamping mechanism is tangent to the outer edge of the rotating table and has a gap between the outer edge of the rotating table.

[0013] Further, the bag clamping mechanism comprises a folding assembly, a reset driving member and two clamping assemblies, the two clamping assemblies are respectively connected with the folding assembly, the reset driving member is connected with the folding assembly, and the folding assembly comprises a directional folding state and a reset state under the action of the reset driving member; when the folding assembly is in the folding state, the two clamping assemblies are respectively connected with the folding assembly, and the clamping assemblies have a moving freedom of approaching each other; when the folding assembly is in the reset state, the two clamping assemblies are respectively separated from the folding assembly, and the clamping assemblies have a moving freedom of approaching or separating from each other.

[0014] Further, the bag clamping mechanism further comprises a reset spring, the reset spring is located between the adjacent clamping assemblies, and the reset spring respectively applies a separating force to the two clamping assemblies.

[0015] Further, the folding assembly comprises a limiting block and a folding rack, the limiting block is installed on the clamping assembly, and the limiting block has a movement freedom degree of moving towards or away from the folding rack; the folding rack is formed with a first tooth part and a second tooth part, the first tooth part and the second tooth part are opposite to each other; the limiting blocks on the two clamping assemblies extend to the first tooth part and the second tooth part respectively.

[0016] The opening of the packaging bag is kept by the filling guide mechanism, so that the opening size of the packaging bag is kept, so that the filling mechanism can be at least partially inserted into the packaging bag, so that the powder is prevented from being scattered or leaked during the filling process, the utilization rate of the powder is improved, and the use safety of the filling equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a top view of the powder filling equipment provided by the present application.

[0019] Figure 2 is Figure 1 a structure schematic view of the bag feeding device of the powder filling equipment shown in the figure.

[0020] Figure 3 is Figure 1 a structure schematic view of the bag supporting device, the filling device and the rotating device of the powder filling equipment shown in the figure.

[0021] Figure 4 is Figure 3 a structure schematic view of the bag supporting device of the powder filling equipment shown in the figure.

[0022] Figure 5 is Figure 3 a structure schematic view of the filling guide mechanism of the powder filling equipment shown in the figure.

[0023] Figure 6 is Figure 3 a structure schematic view of the quantitative conveying assembly of the powder filling equipment shown in the figure.

[0024] Figure 7 is Figure 1 a structure schematic view of the bag sealing device of the powder filling equipment shown in the figure.

[0025] Figure 8 is Figure 1Structure diagram of the bag clamping mechanism of the powder filling equipment.

[0026] Figure 9 is Figure 8 Structure diagram of the bag clamping mechanism after turning through a certain angle.

[0027] Explanation of reference numerals: rotating device 1, bag clamping mechanism 101, folding assembly 1011, limiting block 10111, folding rack 10112, first tooth part 10112a, second tooth part 10112b, reset driving part 1012, clamping assembly 1013, sliding block 10131, connecting column 10132, clamping fixed block 10133, clamping swing block 10134, clamping motor 10135, bag clamping base 1014, mounting column 1015, reset spring 1016, rotating table 102.

[0028] Bag feeding device 2, bag feeding column 201, driving rod 202, bag feeding arm 203, swing limiting rod 204, bag feeding clamping jaw 205, conveying belt 206.

[0029] Bag supporting device 3, suction head 301, bag supporting column 302, bag supporting pneumatic finger 303, bag supporting connecting rod 304.

[0030] Filling device 4, filling guide mechanism 401, swing arm 4011, guide arm 4012, extension part 40121, guide driving part 4013, guide lifting cylinder 4014, guide pneumatic finger 4015, filling conveying mechanism 402, filling assembly 4021, filling hopper 40211, lifting driving part 40212, material bin 4022, quantitative conveying assembly 4023, conveying channel 40231, screw column 40232, buffer hopper 40233, conveying hopper 40234.

[0031] Bag sealing device 5, first clamping block 501, second clamping block 502, first guide rod 503, second guide rod 504, gear 505, bag sealing cylinder 506, bag sealing base 507.

[0032] Packaging bag 6, output conveying belt 7, weighing device 8. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] As Figure 1As shown, as an implementation manner, the application provides a powder filling device, which comprises a rotating device 1, a bag feeding device 2, a bag supporting device 3, a filling device 4 and a bag sealing device 5. The rotating device 1 is used for clamping a packaging bag 6 and conveying the packaging bag 6 to different work stations. The bag feeding device 2, the bag supporting device 3, the filling device 4 and the bag sealing device 5 are sequentially connected to one side of the rotating device 1. The bag feeding device 2 is used for conveying the packaging bag 6 into the rotating device 1. The rotating device 1 rotates, so that the packaging bag 6 moves to below the bag supporting device 3. The bag supporting device 3 is used for supporting the packaging bag 6. After the bag supporting device 3 works, the rotating device 1 rotates, so that the packaging bag 6 moves to below the filling device 4. During the process that the packaging bag 6 moves from below the bag supporting device 3 to below the filling device 4, the filling guide mechanism 401 of the filling device 4 keeps the opening size of the packaging bag 6. The filling device 4 is used for filling the powder into the packaging bag 6. After the filling device 4 works, the rotating device 1 rotates, so that the packaging bag 6 moves to below the bag sealing device 5. The bag sealing device 5 is used for sealing the opening of the packaging bag 6.

[0035] The rotating device 1 comprises a bag clamping mechanism 101 used for clamping the packaging bag 6 and a rotating table 102 used for driving the packaging bag 6 to move. A plurality of bag clamping mechanisms 101 are installed on the rotating table 102, and the bag clamping mechanism 101 extends at least partially to outside of the rotating table 102, so that the packaging bag 6 clamped on the bag clamping mechanism 101 is tangent to the outer edge of the rotating table 102, and there is a gap between the packaging bag 6 and the outer edge of the rotating table 102, so as to facilitate the bag supporting and sealing work of the bag supporting device 3 and the bag sealing device 5 on the packaging bag 6.

[0036] The rotating table 102 has a rotation degree of freedom with its axis as the rotation center. The rotating table 102 rotates to drive the packaging bag 6 on the bag clamping mechanism 101 to sequentially pass through the bag supporting device 3, the filling device 4 and the bag sealing device 5.

[0037] The number of the bag clamping mechanisms 101 is at least four, which ensures that the bag feeding device 2, the bag supporting device 3, the filling device 4 and the bag sealing device 5 can simultaneously work on the packaging bags 6 on the bag clamping mechanisms 101 at different work stations, thereby improving the working efficiency of the powder filling device.

[0038] The bag supporting device 3 comprises at least two suction heads 301. Along the vertical direction of the diameter of the rotating table 102, the two suction heads 301 both have a movement degree of freedom along the radial direction of the rotating table 102. The two suction heads 301 are located outside the packaging bag 6, and the movement directions of the two suction heads 301 are opposite, so as to facilitate the opening of the packaging bag by the movement of the suction heads 301.

[0039] The filling device 4 comprises a filling guide mechanism 401 and a filling conveying mechanism 402, the filling guide mechanism 401 is installed on the rotating table 102 and has a rotating freedom relative to the rotating table 102, and the filling conveying mechanism 402 is located above the bag clamping mechanism 101.

[0040] The filling guide mechanism 401 comprises a guiding state of being inserted into the packaging bag 6 and an idle state of being located outside the packaging bag.

[0041] When the filling guide mechanism 401 is in the idle state, the filling guide mechanism 401 is located above the bag supporting device 3.

[0042] When the filling guide mechanism 401 is switched from the idle state to the guiding state, the filling guide mechanism 401 is at least partially inserted into the packaging bag opened by the bag supporting device 3, and the rotating table 102 and the filling guide mechanism rotate simultaneously, so that the opened packaging bag 6 and the filling guide mechanism 401 move to below the filling conveying mechanism 402.

[0043] When the filling guide mechanism 401 is in the guiding state, the filling guide mechanism 401 is located below the filling conveying mechanism 402, and the filling conveying mechanism 402 is guided by the filling guide mechanism 401 to be inserted into the packaging bag 6.

[0044] As shown in Figure 2 As an implementation manner, the bag feeding device 2 comprises a bag feeding column 201, a driving rod 202, a bag feeding arm 203, a swing limiting rod 204 and a bag feeding clamp 205, the driving rod 202 and the swing limiting rod 204 are rotatably installed on the bag feeding column 201 respectively, the middle part of the bag feeding arm 203 is connected with the end of the driving rod 202 away from the swing center thereof, the side end of the bag feeding arm 203 is connected with the end of the swing limiting rod 204 away from the swing center thereof, and the bag feeding clamp 205 is installed on the other side end of the bag feeding arm 203.

[0045] The bag feeding device 2 further comprises a conveying belt 206 for conveying the packaging bag 6 towards the bag feeding arm 203, and the bag feeding column 201 is located between the conveying belt 206 and the rotating device 1.

[0046] A rotating motor is installed in the bag feeding column 201, the driving rod 202 is swung by the rotating motor, the middle part of the bag feeding arm 203 is moved by the driving rod 202, the end of the bag feeding arm 203 is limited to move by the swing limiting rod 204, and the bag feeding arm 203 is swung between the bag grabbing position and the bag releasing position by the cooperation of the driving rod 202 and the swing limiting rod 204.

[0047] When the bag feeding arm 203 is in the bag grabbing position, the bag feeding arm 203 is perpendicular to the conveying plane of the conveying belt 206, so that the bag feeding clamp 205 can clamp the horizontal packaging bag 6 on the conveying belt 206.

[0048] When the bag feeding arm 203 is in the bag feeding position, the bag feeding arm 203 is vertically clamped by the bag clamping mechanism 101, so as to facilitate the bag clamping mechanism 101 to clamp the packaging bag 6 on the bag feeding clamping jaw 205.

[0049] As shown in Figure 3 and Figure 4 , as an implementation manner, the bag supporting device 3 further comprises a bag supporting column 302, a bag supporting pneumatic finger 303 and a bag supporting connecting rod 304, the bag supporting column 302 is located on one side of the rotating device 1, the bag supporting pneumatic finger 303 is installed on the bag supporting column 302, two bag supporting connecting rods 304 are respectively connected with the bag supporting pneumatic finger 303, the distance between the adjacent bag supporting connecting rods 304 is changed through the bag supporting pneumatic finger 303, and the suction head 301 is fixed on the inner side of the bag supporting connecting rod 304.

[0050] The bag supporting column 302 at least partially extends into the bag clamping mechanism 101, and the end of the bag supporting column 302 extending into the bag clamping mechanism 101 is parallel to the radial direction of the rotating device 1, so that the moving direction of the bag supporting pneumatic finger 303 is parallel to the radial direction of the rotating device 1, thereby facilitating the suction head 301 to support the packaging bag 6 between the suction heads 301.

[0051] Specifically, the rotating device 1 rotates, so that the packaging bag 6 clamped on the bag clamping mechanism 101 moves to between the adjacent suction heads 301, the bag supporting pneumatic finger 303 works, so that the suction heads 301 move close to each other until the two suction heads 301 respectively abut against the two side end faces of the packaging bag 6, at this time, the suction heads 301 inhale, so that the packaging bag 6 is adsorbed on the suction heads 301, the bag supporting pneumatic finger 303 further works, the suction heads 301 move away from each other, so that the packaging bag 6 is supported, the suction heads 301 are separated from the packaging bag 6, the bag supporting pneumatic finger 303 further works, and a certain distance is generated between the suction heads 301 and the packaging bag 6, so as to facilitate the rotating device 1 to transport the supported packaging bag 6 to the filling device 4.

[0052] It should be noted that the suction head 301 is connected with an external air source, and the suction head 301 inhales and blows through the external air source, so as to adsorb the packaging bag 6 on the suction head 301 or separate the packaging bag 6 from the suction head 301.

[0053] As shown in Figure 3 and Figure 5As shown, as an implementation manner, the filling guide mechanism 401 comprises a swing arm 4011, guide arms 4012, guide pneumatic fingers 4015 and guide lifting cylinders 4014, the guide arms 4012 are used for guiding the filling conveying mechanism 402, the guide pneumatic fingers 4015 are used for driving the two guide arms 4012 to approach or separate, the swing arm 4011 is used for driving the guide arms 4012 to move between the bag opening device 3 and the filling conveying mechanism 402, and the guide lifting cylinders 4014 are used for driving the guide arms 4012 to lift so as to extend into the packaging bag 6.

[0054] The guide lifting cylinders 4014 are installed at the swing center of the swing arm 4011, and the swing arm 4011 is installed on the rotating table 102 through the guide lifting cylinders 4014, and the swing arm 4011 has a rotation freedom relative to the rotating table 102, so that the end of the swing arm 4011 away from the swing center swings back and forth between the bag opening device 3 and the filling conveying mechanism 402.

[0055] The guide pneumatic fingers 4015 are installed at the end of the swing arm 4011 away from the swing center, and the two guide arms 4012 are respectively installed on the guide pneumatic fingers 4015, so that the guide arms 4012 are installed at the end of the swing arm 4011 towards the bag clamping mechanism 101, and the two guide arms 4012 are driven to approach or separate each other through the guide pneumatic fingers 4015.

[0056] In the stepping direction of the rotating table 102, the guide arms 4012 comprise extension parts 40121 for guiding the filling conveying mechanism 402, through the extension parts 40121, the swing arm 4011 is prevented from interfering with the filling conveying mechanism 402, and meanwhile, the filling conveying mechanism 402 can be guided into the opened packaging bag 6 through the extension parts 40121.

[0057] As an implementation manner, the filling guide mechanism 401 further comprises a guide driving member 4013, and the swing arm 4011 is installed on the guide driving member 4013, and the swing arm 4011 is driven to move along the circumference of the rotating table 102 through the guide driving member 4013.

[0058] As shown in Figure 3 and Figure 6 As an implementation manner, the filling conveying mechanism 402 comprises a filling assembly 4021, the filling assembly 4021 is located above the bag clamping mechanism 101, and the filling assembly 4021 has a movement freedom relative to the filling guide mechanism 401, and during the descending of the filling assembly 4021, the filling assembly 4021 is guided to be inserted into the packaging bag 6 clamped by the bag clamping mechanism 101 through the filling guide mechanism 401.

[0059] As an implementation form, the filling assembly 4021 comprises a filling funnel 40211 and a lifting driver 40212, the filling funnel 40211 is installed on the lifting driver 40212, the filling funnel 40211 is driven to lift relative to the filling guide mechanism 401 by the lifting driver 40212, so that the filling funnel 40211 is at least partially inserted into the opened packaging bag 6, and the powder is prevented from floating or leaking during filling.

[0060] During filling, the lifting driver 40212 drives the filling funnel 40211 to move downward, so that the filling funnel 40211 is at least partially inserted into the opened packaging bag 6.

[0061] It should be noted that the lifting driver 40212 is a pneumatic cylinder.

[0062] As an implementation form, the filling conveying mechanism 402 further comprises a powder bin 4022 and a quantitative conveying assembly 4023, the powder bin 4022 is used for storing powder, and the quantitative conveying assembly 4023 is used for quantitatively conveying the powder to the filling assembly 4021, so as to ensure that the filling amount is consistent each time, and the powder bin 4022 is connected with the filling assembly 4021 through the quantitative conveying assembly 4023.

[0063] It should be noted that the powder bin 4022 is provided with a conveying pump and other components for conveying the powder to the quantitative conveying assembly 4023, so as to ensure that the quantitative conveying assembly 4023 can stably quantitatively output the powder.

[0064] The quantitative conveying assembly 4023 at least partially extends into the filling assembly 4021, and the filling assembly 4021 has a lifting movement degree relative to the quantitative conveying assembly 4023, that is, the filling funnel 40211 can lift relative to the quantitative conveying assembly 4023, so as to facilitate the filling funnel 40211 to extend into the opened packaging bag 6.

[0065] As an implementation form, the quantitative conveying assembly 4023 comprises a conveying hopper 40234, a screw column 40232 and a buffer hopper 40233, the conveying hopper 40234 is connected with the powder bin 4022, the powder in the powder bin 4022 is conveyed into the conveying hopper 40234, a conveying channel 40231 is formed in the conveying hopper 40234, the screw column 40232 is installed in the conveying channel 40231, the screw column 40232 has a rotation degree relative to the conveying channel 40231, the powder is quantitatively output from the conveying hopper 40234 by the screw column 40232, the buffer hopper 40233 is connected with the conveying hopper 40234 through a pipe, and the buffer hopper 40233 is at least partially inserted into the filling funnel 40211.

[0066] The helical column 40232 has helical blades formed on the circumferential side wall, and the helical column 40232 rotates to convey the powder in the conveying channel 40231. By controlling the rotation angle of the helical column 40232, the amount of powder flowing through the conveying channel 40231 can be controlled.

[0067] As an implementation, a stirring paddle is installed in the hopper 4022 to stir the powder in the hopper 4022, thereby preventing the powder in the hopper from caking.

[0068] As shown in Figure 7 As an implementation, the bag sealing device 5 includes two bag sealing mechanisms arranged in the rotation direction of the rotating device 1 to perform two bag sealing operations on the same packaging bag 6 through the two bag sealing mechanisms, thereby improving the sealing performance of the packaging bag 6.

[0069] Specifically, the bag sealing mechanism includes a first clamping block 501, a second clamping block 502, a first guide rod 503, a second guide rod 504, a gear 505, a bag sealing cylinder 506, and a bag sealing base 507. The first guide rod 503 and the second guide rod 504 are slidably installed on the bag sealing base 507 through a sliding block. The first clamping block 501 is installed on the end of the first guide rod 503, and the second clamping block 502 is installed on the end of the second guide rod 504. The opposite surfaces of the first guide rod 503 and the second guide rod 504 are respectively connected with a rack. The gear 505 is engaged with the racks on the first guide rod 503 and the second guide rod 504, thereby realizing the movement of the first clamping block 501 and the second clamping block 502 towards or away from each other.

[0070] Heating wires are respectively installed on the first clamping block 501 and the second clamping block 502. Under the action of the heating wires, the temperature of the first clamping block 501 and the second clamping block 502 increases, so that the opening of the packaging bag 6 is heat sealed when the first clamping block 501 and the second clamping block 502 clamp the packaging bag 6.

[0071] Alternatively, ultrasonic generators are installed on the first clamping block 501 and the second clamping block 502. When the first clamping block 501 and the second clamping block 502 clamp the packaging bag 6, the opening of the packaging bag 6 is sealed by ultrasonic waves.

[0072] As an implementation, the bag sealing cylinder 506 works simultaneously with the bag clamping mechanism 101. When the bag sealing cylinder 506 drives the first clamping block 501 and the second clamping block 502 to approach each other, the bag clamping mechanism 101 works to make the two ends of the packaging bag 6 away from each other, so that the opening of the packaging bag 6 decreases until the opening of the packaging bag 6 is a straight line, thereby facilitating the bag sealing of the bag sealing device 5 on the packaging bag 6.

[0073] As shown in Figure 1As shown, as one implementation method, the powder filling equipment also includes an output conveyor belt 7, which is installed below the end sealing mechanism. After the end sealing mechanism is working, the packaging bag 6 separates from the bag clamping mechanism 101 and falls to the output conveyor belt 7, through which the packaged powder is output.

[0074] like Figure 1 As shown, as one implementation method, the powder filling equipment also includes a weighing device 8, which is located in the middle or at the end of the output conveyor belt 7, and is used to weigh the packaged powder so as to facilitate screening of the packaged powder according to its weight.

[0075] As one implementation method, a rotary motor is installed at the bottom of the rotary table 102, which drives the rotary table 102 to rotate.

[0076] like Figure 8 and Figure 9 As shown, in one implementation, the bag clamping mechanism 101 includes a gathering component 1011, a reset drive component 1012, two clamping components 1013, and a bag clamping base 1014. The clamping components 1013 and the gathering component 1011 are slidably mounted on the bag clamping base 1014, and the moving direction of the clamping component 1013 is perpendicular to the moving direction of the gathering component 1011. The two clamping components 1013 are respectively connected to the gathering component 1011, and the reset drive component 1012 is connected to the gathering component 1011.

[0077] Under the action of the reset drive 1012, the retraction assembly 1011 includes a directional retraction state and a reset state.

[0078] When the gathering component 1011 is in the gathered state, the two clamping components 1013 are connected to the gathering component 1011 respectively. The clamping components 1013 have the freedom of movement to move closer to each other. That is, the two clamping components 1013 are clamped at both ends of the packaging bag 6. The bag supporting device 3 works, which reduces the distance between the two ends of the packaging bag 6, thereby making the clamping components 1013 move closer to each other.

[0079] When the retracting component 1011 is in the reset state, the two clamping components 1013 are separated from the retracting component 1011, so that the retracting component 1011 loses its limiting effect on the two clamping components 1013, thereby giving the two clamping components 1013 the freedom of movement to move closer to each other or separate from each other, that is, the two clamping components 1013 can move closer to each other or separate from each other.

[0080] As one implementation, the bag clamping mechanism 101 also includes a return spring 1016, which is located between adjacent clamping assemblies 1013. The return spring 1016 applies a separating force to each of the two clamping assemblies 1013.

[0081] When the folding assembly 1011 is in the reset state, the two clamping assemblies 1013 are separated from each other under the action of the reset spring 1016, so that the opening of the packaging bag 6 is folded, and the bag sealing device 5 can seal the packaging bag 6.

[0082] As an implementation manner, the clamping assembly 1013 comprises a sliding block 10131, a connecting column 10132, a clamping fixed block 10133, a clamping swing block 10134, and a clamping motor 10135. The clamping swing block 10134 is swingably installed on the clamping fixed block 10133 through a rotating shaft, and the clamping motor 10135 is connected with the clamping swing block 10134, so that the clamping swing block 10134 can swing relative to the clamping fixed block 10133, thereby realizing clamping of the packaging bag 6 on the clamping assembly 1013 or separation of the packaging bag 6 from the clamping assembly 1013.

[0083] The sliding block 10131 is connected with the clamping fixed block 10133 through the connecting column 10132, the sliding block 10131 is slidably installed on the bag clamping base 1014, and the sliding direction of the sliding block 10131 is parallel to the tangent line of the rotating direction of the rotating table 102, so as to facilitate the mutual approaching movement or mutual separation movement of the adjacent clamping assemblies 1013.

[0084] As an implementation manner, the folding assembly 1011 comprises a limiting block 10111 and a folding rack 10112. The limiting block 10111 is installed on the clamping assembly 1013, and the limiting block 10111 has a movement degree of freedom of moving towards or away from the folding rack 10112, so as to facilitate the movement of the limiting block 10111 along the direction perpendicular to the folding rack 10112, thereby facilitating the movement of the limiting block 10111 relative to the folding rack 10112.

[0085] The folding rack 10112 is formed with a first tooth portion 10112a and a second tooth portion 10112b, and the first tooth portion 10112a and the second tooth portion 10112b are opposite to each other.

[0086] The limiting blocks 10111 on the two clamping assemblies 1013 respectively extend to the first tooth portion 10112a and the second tooth portion 10112b, so as to make the two clamping assemblies 1013 approach each other.

[0087] During the opening of the packaging bag 6, the limiting blocks 10111 are limited by the first tooth portion 10112a and the second tooth portion 10112b, so that the two clamping assemblies 1013 approach each other.

[0088] As an implementation manner, the reset driving member 1012 is a pneumatic cylinder, the reset driving member 1012 is connected with the folding rack 10112, and drives the folding rack 10112 to move along the radial direction of the rotating device 1.

[0089] When the folding assembly 1011 is in the reset state, the folding rack 10112 is separated from the limiting block 10111, and under the action of the reset spring 1016, the two clamping assemblies 1013 are separated from each other, so that the opening of the packaging bag 6 is folded.

[0090] As an implementation manner, the bag clamping base 1014 is provided with a mounting column 1015, and the bag clamping base 1014 is mounted on the lower end face of the rotating table 102 through the mounting column 1015.

[0091] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

[0092] Although the embodiments of the present application are described in combination with the drawings, those skilled in the art can make various modifications and changes without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A powder filling device for filling powder into packaging bags, characterized in that, The application relates to a packaging machine, which comprises: a rotating device (1) comprising bag clamping mechanisms (101) for clamping packaging bags and a rotating table (102) for driving the bag clamping mechanisms (101) to move, a plurality of the bag clamping mechanisms (101) being installed on the rotating table (102), and the rotating table (102) having a rotating freedom with an axis as a rotating center; a bag feeding device (2) located upstream of the rotating device (1) and used for feeding packaging bags to the bag clamping mechanisms (101); a bag opening device (3) located downstream of the bag feeding device (2) and used for opening the packaging bags clamped by the bag clamping mechanisms (101); a filling device (4) located downstream of the bag opening device (3), the filling device (4) comprising a filling guide mechanism (401) and a filling conveying mechanism (402), the filling guide mechanism (401) being installed on the rotating table (102) and having a rotating freedom relative to the rotating table (102), and the filling conveying mechanism (402) being located above the bag clamping mechanisms (101); a bag sealing device (5) located downstream of the filling device (4) and used for sealing the packaging bags clamped by the bag clamping mechanisms; the filling guide mechanism (401) comprises a guide state of being inserted into the packaging bags; when the filling guide mechanism (401) is switched from an empty state to the guide state, the filling guide mechanism (401) is at least partially inserted into the packaging bags opened by the bag opening device (3), the rotating table (102) and the filling guide mechanism are simultaneously rotated, so that the opened packaging bags and the filling guide mechanism are moved to below the filling conveying mechanism (402); the filling guide mechanism (401) comprises a swing arm (4011), a guide arm (4012) and a guide driving member (4013), the swing arm (4011) is installed on the rotating table (102) and has a rotating freedom relative to the rotating table (102); the guide arm (4012) is installed on an end of the swing arm (4011) towards the bag clamping mechanisms (101), and along a stepping direction of the rotating table (102), the guide arm (4012) comprises an extension part (40121) for guiding the filling conveying mechanism (402); the swing arm (4011) is installed on the guide driving member (4013), and the swing arm (4011) is driven by the guide driving member (4013) to move circumferentially along the rotating table (102).

2. A powder filling apparatus according to claim 1, wherein The filling conveying mechanism (402) comprises a filling assembly (4021) which is located above the bag clamping mechanism (101) and has a moving freedom of lifting relative to the filling guide mechanism (401), and a discharge port of the filling assembly (4021) is guided to be inserted into a packaging bag clamped by the bag clamping mechanism (101) through the filling guide mechanism (401).

3. A powder filling apparatus according to claim 2, wherein The filling assembly (4021) comprises a filling funnel (40211) and a lifting driving element (40212), the filling funnel (40211) is installed on the lifting driving element (40212), and the filling funnel (40211) is driven to lift relative to the filling guide mechanism (401) through the lifting driving element (40212).

4. The powder filling apparatus according to claim 2, wherein The filling conveying mechanism (402) further comprises a hopper (4022) and a quantitative conveying assembly (4023), the hopper (4022) is connected with the filling assembly (4021) through the quantitative conveying assembly (4023); And the quantitative conveying assembly (4023) at least partially extends into the filling assembly (4021), and the filling assembly (4021) has a moving freedom of lifting relative to the quantitative conveying assembly (4023).

5. A powder filling apparatus according to claim 4, wherein The quantitative conveying assembly (4023) comprises a conveying channel (40231) and a spiral column (40232), the spiral column (40232) is installed in the conveying channel (40231), the spiral column (40232) has a rotating freedom of rotating relative to the conveying channel (40231), and the powder amount flowing through the conveying channel (40231) is controlled by controlling a rotating angle of the spiral column (40232).

6. The powder filling apparatus according to claim 1, wherein The bag clamping mechanism (101) at least partially extends out of the rotating table (102) so that a packaging bag clamped on the bag clamping mechanism (101) is tangent to an outer edge of the rotating table (102) and has a gap between the outer edge of the rotating table (102).

7. The powder filling apparatus according to claim 1, wherein The bag clamping mechanism (101) comprises a folding assembly (1011), a reset driving element (1012) and two clamping assemblies (1013), the two clamping assemblies (1013) are respectively connected with the folding assembly (1011), and the reset driving element (1012) is connected with the folding assembly (1011), Under the action of the reset driving element (1012), the folding assembly (1011) comprises a directional folding state and a reset state; When the folding assembly (1011) is in the folding state, the two clamping assemblies (1013) are respectively connected with the folding assembly (1011), and the clamping assemblies (1013) have a moving freedom of approaching each other; When the folding assembly (1011) is in the reset state, the two clamping assemblies (1013) are respectively separated from the folding assembly (1011), and the clamping assemblies (1013) have a moving freedom of approaching or separating from each other.

8. A powder filling apparatus according to claim 7, wherein The bag clamping mechanism (101) further comprises reset springs (1016) located between the adjacent clamping assemblies (1013), which respectively apply a mutual separation force to the two clamping assemblies (1013).

9. The powder filling apparatus according to claim 7, wherein The folding assembly (1011) comprises limiting blocks (10111) and a folding rack (10112), the limiting blocks (10111) are installed on the clamping assemblies (1013), and the limiting blocks (10111) have a movement freedom degree of moving towards or away from the folding rack (10112); The folding rack (10112) is formed with a first tooth portion (10112a) and a second tooth portion (10112b), and the first tooth portion (10112a) and the second tooth portion (10112b) are opposite to each other; The limiting blocks (10111) on the two clamping assemblies (1013) respectively extend to the first tooth portion (10112a) and the second tooth portion (10112b).

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