A high-efficiency powder feeding device

Abstract

This utility model discloses a high-efficiency powder feeding device, which includes a storage module for storing powder, a receiving hopper disposed below the storage module, a conveying pipe for conveying powder from the storage module to the receiving hopper, a support frame for fixing the storage module and the receiving hopper, a stirring module for stirring the powder in the receiving hopper, and several feeding modules for quantitatively adding powder from the receiving hopper to a cup. The stirring module includes several stirring shafts, and the feeding module includes a feeding screw inserted inside the stirring shaft and a feeding motor fixed on the support frame and driving the feeding screw to rotate. Several feeding nozzles are provided at the lower end of the receiving hopper. The multiple feeding nozzles of this utility model are compactly arranged, occupy little space, improve production efficiency, and avoid the problem of clumping and clogging during feeding.

Description

[Technical field]

[0001] The utility model belongs to the technical field of powder filling, in particular to a high-efficiency powder feeding device. [Background technology]

[0002] After the coffee powder is produced, it is necessary to add the powder to the cup and then seal it to obtain the coffee capsule. In order to improve the production efficiency of filling and sealing, the filling machine designed in the prior art can fill and seal multiple cups at the same time. Therefore, it is necessary to design a corresponding feeding device that can feed powder to multiple cups at the same time, and it is also necessary to meet the problem of powder leakage and clogging when feeding multiple cups at the same time.

[0003] Therefore, an automatic feeding device disclosed in Chinese patent announcement number CN214690281U includes a column, a vacuum feeder, a stirring motor, a servo motor and a conical hopper, a reducer is installed in the column, a hand wheel connected to the reducer is installed on the outer side of the column, a guide sleeve is installed on the top of the column, a guide column is installed on the guide sleeve, a support seat is installed on the top of the guide column, a conical funnel is installed on the bottom of the support seat, a receiving hopper is installed on the bottom of the vacuum feeder, the receiving hopper is connected to the conical funnel through a silicone hose, a stirring shaft and a metering shaft are installed on the conical funnel at the support seat, a stirring knife and a driven wheel are installed on the stirring shaft, and a driving wheel meshing with the driven wheel is installed on the output shaft of the stirring motor; in the above scheme, although automatic feeding can be achieved, only one stirring shaft and a metering shaft are designed, so that only one cup can be fed at a time, and production efficiency cannot be met.

[0004] In order to achieve efficient filling operations, a feeding device designed in the prior art can feed multiple cups at the same time. For example, a three-head automatic powder feeder for a blister packaging machine disclosed in Chinese patent announcement No. CN203172928U includes a silo, an agitator, a synchronous wheel and a motor. The agitator includes a screw shaft, a feeding screw, a fixed block and a stirring brush. A discharge plate is provided at the lower end of the silo, and a discharge nozzle is provided on the discharge plate. The motor drives the agitator to rotate, thereby driving the feeding screw to rotate. The powder enters the discharge nozzle through the spiral groove on the feeding screw. Feeding is achieved; although three agitators are provided in this scheme to feed three cups at the same time, the stirring brush and the feeding screw provided on the agitator are in motion at the same time, that is to say, the stirring brush will only stir the powder in the silo when the feeding screw rotates to feed. Since the three cups need to be fed at the same time and stirring is only performed when feeding, the stirring will not be sufficient, resulting in powder blockage and even difficulty in the movement of the feeding screw, resulting in inconsistent feeding of the three cups and even the inability to discharge materials at the lower end of the feeding screw.

[0005] Therefore, it is necessary to provide a high-efficiency powder feeding device to solve the above-mentioned technical problems. [Contents of the utility model]

[0006] The main purpose of the utility model is to provide a high-efficiency powder feeding device, wherein a plurality of feeding nozzles are arranged in a compact layout, occupy a small space, can improve production efficiency, and can also avoid the problem of agglomeration and blockage during feeding.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: an efficient powder feeding device, which includes a storage module for storing powder, a receiving hopper arranged below the storage module, a feeding pipe for conveying the powder in the storage module to the receiving hopper, a support frame for fixing the storage module and the receiving hopper, a stirring module for stirring the powder in the receiving hopper, and a plurality of feeding modules for quantitatively adding the powder in the receiving hopper into a cup; the stirring module includes a plurality of stirring shafts whose lower ends extend into the receiving hopper, and a pair of stirring blades are relatively installed on both sides of the stirring shaft; the feeding module includes a feeding screw inserted into the stirring shaft and extending from the upper and lower ends of the stirring shaft, and a feeding motor fixed on the support frame and driving the feeding screw to rotate; the lower end of the receiving hopper is provided with a plurality of feeding nozzles corresponding to the upper and lower ends of the feeding screw.

[0008] Furthermore, three feeding modules are provided, and correspondingly, three stirring shafts and three feeding nozzles are provided, and the three feeding modules, the three stirring shafts and the three feeding nozzles are arranged in a corresponding triangular structure.

[0009] Furthermore, the support frame includes a first support plate for installing the material storage module and a second support plate located below the first support plate and used for installing the receiving hopper, and the first support plate and the second support plate are installed and fixed by Z-shaped support plates on both sides.

[0010] Furthermore, the material storage module includes a vacuum loader, a storage bin connected to the vacuum loader and used to store powder, a loading motor fixed on the first support plate, a rotating conical table arranged at the bottom of the storage bin and driven to rotate by the loading motor, and a plurality of stirring blades arranged on the rotating conical table and used to stir the powder in the storage bin; a material inlet hole connected to the feed pipe is provided at the bottom of the storage bin, and a first material level detector and a second material level detector are respectively provided on the storage bin and the receiving hopper.

[0011] Furthermore, the stirring module also includes a driven wheel fixed to the upper end of the stirring shaft, a stirring motor installed on the second support plate, and a driving wheel driven to rotate by the stirring motor. The driving wheel and the driven wheel are connected together through meshing gears to realize meshing transmission.

[0012] Furthermore, the interior of the stirring shaft is provided with an axial hole that passes through the upper and lower ends and for the feeding screw to pass through, the upper surface of the second support plate is fixed with a bearing sleeve by a stud, the outer periphery of the stirring shaft is provided with a plurality of first bearings, the stirring shaft is installed in the bearing sleeve through the first bearings, and the outer periphery of the stirring shaft is provided with a first sealing ring for achieving sealing between the stirring shaft and the bearing sleeve.

[0013] Furthermore, the stirring blade includes a first stirring blade fixed on one side of the stirring shaft and a second stirring blade fixed on the other opposite side of the stirring shaft. The blade body of the first stirring blade extends downward and extends into the upper end of the feeding nozzle, and the second stirring blade is provided with two blade bodies opposite to each other up and down.

[0014] Furthermore, the driving wheel and the driven wheel are both located on the upper surface of the second support plate, the meshing gear is rotatably set on the rotating shaft, and the rotating shaft is fixed on the second support plate; the feeding motor is fixed on the second support plate; the second support plate is also provided with a muffler for reducing noise, an avoidance hole for avoiding the bearing sleeve, and a conveying through hole connecting the conveying pipe and the receiving hopper.

[0015] Furthermore, the feeding screw is installed in the stirring shaft through a second bearing, and a second sealing ring is sleeved on the outer periphery of the feeding screw for achieving sealing between the stirring shaft and the feeding screw.

[0016] Furthermore, the feeding screw includes a smooth rotating shaft section installed in the stirring shaft and a feeding section with a spiral groove arranged on the outer circumference, and the feeding section is in contact with the inner wall of the lower end of the feeding nozzle.

[0017] Compared with the prior art, the beneficial effects of the high-efficiency powder feeding device of the utility model are:

[0018] (1) It is equipped with multiple feeding nozzles, which can simultaneously feed multiple cups. The three feeding modules are arranged in a triangular shape, which is compact and occupies little space.

[0019] (2) The feeding screw is installed inside the stirring shaft, and the stirring module and the feeding module are combined in the layout design, which not only occupies a very small space, but also the stirring blades arranged on both sides of the stirring shaft can continuously stir the powder in the receiving hopper, thereby preventing the powder entering the feeding screw from agglomerating and clogging the feeding screw;

[0020] (3) The stirring blade comprises a first stirring blade fixed on one side of the stirring shaft and a second stirring blade fixed on the other opposite side of the stirring shaft. The blade body of the first stirring blade extends downward and extends into the upper end of the feeding nozzle, so as to fully stir the powder beside the feeding screw and the powder entering the feeding nozzle, thereby preventing the feeding screw from clumping and clogging when feeding. The second stirring blade is provided with two blade bodies facing each other up and down, thereby fully stirring the powder in the receiving hopper, thereby preventing the powder entering the feeding nozzle from clumping and clogging.

Brief Description of the Drawings

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the efficient powder feeding device of the embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the material storage module of the embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the material storage module of the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the efficient powder feeding device of the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the stirring module and the feeding module of the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the stirring module and the feeding module of the embodiment of the utility model;

[0027] The numbers in the figure represent:

[0028] 100-High efficiency powder feeding device;

[0029] 1- material storage module, 11- vacuum feeder, 12- material storage bin, 121- material inlet, 13- feeding motor, 14- rotating cone table, 15- stirring blade, 16- first material level detector;

[0030] 2- receiving hopper, 21- feeding nozzle, 22- second material level detector; 3- conveying pipe;

[0031] 4-support frame, 41-first support plate, 42-second support plate, 43-Z-shaped support plate;

[0032] 5-stirring module, 51-stirring shaft, 52-driven wheel, 53-stirring motor, 54-driving wheel, 55-meshing gear, 551-rotating shaft, 56-stirring blade, 561-first stirring blade, 562-second stirring blade, 57-bearing sleeve;

[0033] 6-feeding module, 61-feeding screw, 611-rotating shaft section, 612-feeding section, 62-feeding motor; 7-muffler. [Specific implementation method]

[0034] Please refer to Figure 1-Figure 6 The present embodiment is a high-efficiency powder feeding device, which includes a storage module 1 for storing powder, a receiving hopper 2 arranged below the storage module 1, a feeding pipe 3 for conveying the powder in the storage module 1 to the receiving hopper 2, a support frame 4 for fixing the storage module 1 and the receiving hopper 2, a stirring module 5 for stirring the powder in the receiving hopper 2, and a plurality of feeding modules 6 for quantitatively adding the powder in the receiving hopper 2 to a cup; the stirring module 5 includes a plurality of stirring shafts 51 whose lower ends extend into the receiving hopper 2, and a pair of stirring blades 56 are oppositely installed on both sides of the stirring shaft 51; the feeding module 6 includes a feeding screw 61 inserted into the stirring shaft 51 and extending from the upper and lower ends of the stirring shaft 51, and a feeding motor 62 fixed on the support frame 4 and driving the feeding screw 61 to rotate; the lower end of the receiving hopper 2 is provided with a plurality of feeding nozzles 21 corresponding to the upper and lower ends of the feeding screw 61.

[0035] In this embodiment, powder needs to be added to three cups at the same time, so three feeding modules 6 need to be set, so three stirring shafts 51 are correspondingly set, and three feeding nozzles 21 are correspondingly set. The three feeding screws 61 of the three feeding modules 6 are respectively extended into the stirring shaft 51 and extend out of both ends of the stirring shaft 51. The three feeding modules 6 are arranged in a triangle, which can be adapted to the disc filling machine. The triangle layout is compact and saves space.

[0036] The lower end of the receiving hopper 2 is provided with a plurality of feeding nozzles 21 corresponding to the upper and lower feeding screws 61, and the lower ends of the feeding screws 61 extend into the lower ends of the corresponding feeding nozzles 21 to realize the feeding action. A second material level detector 22 is provided on the discharge hopper, and the second material level detector 22 can be used to detect the height of the powder in the receiving hopper 2, so that the storage module 1 determines whether to transport the powder in the receiving hopper 2 according to the detection result of the first material level detector 11.

[0037] The support frame 4 includes a first support plate 41 for installing the material storage module 1 and a second support plate 42 located below the first support plate 42 and used for installing the receiving hopper 2. The first support plate 41 and the second support plate 42 are installed and fixed by Z-shaped support plates 43 on both sides, and the receiving hopper 2 is fixed on the lower surface of the second support plate 42.

[0038] The material storage module 1 includes a vacuum feeder 11, a storage bin 12 connected to the vacuum feeder 11 and used to store the powder conveyed by the vacuum feeder 11, a feeding motor 13 fixed on a first support plate 41, a rotating cone-shaped platform 14 arranged at the bottom of the storage bin 12 and driven by the feeding motor 13 to rotate, a plurality of stirring blades 15 arranged on the rotating cone-shaped platform 14 and used to stir the powder in the storage bin 12, and a first material level detector 16 arranged in the storage bin 12. The bottom of the storage bin 12 is provided with a material inlet 121 connected to the feeding pipe 3; one end of the stirring blade 15 is fixed on the rotating cone-shaped platform 14, and the other end extends to the side wall of the storage bin 12 so as to fully stir the powder in the storage bin 12; the first material level detector 16 is provided to detect the storage height of the powder in the storage bin 12, so that the vacuum feeder 11 can determine whether to convey the powder in the storage bin 12 according to the detection result of the first material level detector 16. A glass window is provided on the side wall of the storage bin 12 to facilitate manual observation of the powder level in the storage bin 12 .

[0039] The stirring module 5 also includes a driven wheel 52 fixed to the upper end of the stirring shaft 51, a stirring motor 53 installed on the second support plate 42, and a driving wheel 54 driven to rotate by the stirring motor 53. In this embodiment, since three stirring shafts 51 are provided, three driven wheels 52 are provided. The driving wheel 54 and the three driven wheels 52 are connected together by a plurality of meshing gears 55 to realize meshing transmission. There are three meshing gears 55.

[0040] The interior of the stirring shaft 51 is provided with an axial hole that passes through the upper and lower ends and through which the feeding screw 61 passes. The upper surface of the second support plate 42 is fixed with a bearing sleeve 57 through a stud. The outer periphery of the stirring shaft 51 is provided with a plurality of first bearings. The stirring shaft 51 is installed in the bearing sleeve 57 through the first bearings. The outer periphery of the stirring shaft 51 is provided with a first sealing ring for sealing between the stirring shaft 51 and the bearing sleeve 57. A limiting sleeve is provided between the plurality of first bearings to limit the first bearings; the upper end of the bearing sleeve 57 is fixed on the second support plate 42, and the lower end extends into the receiving hopper 2; the first sealing ring is located on the inner side of the lower end of the bearing sleeve 57, and the first sealing ring is provided to achieve sealing between the stirring shaft 51 and the bearing sleeve 57, so as to prevent the powder from entering the bearing sleeve 57 to hinder the rotation of the stirring shaft 51, thereby affecting the stirring of the powder in the receiving hopper 2.

[0041] The stirring shaft 51 includes a stirring shaft section a at the upper end and a stirring shaft section b at the lower end. The diameter of the stirring shaft section a is smaller than that of the stirring shaft section b. The stirring shaft section a is a stepped shaft, and its several shaft shoulders are used to limit the several first bearings, the shaft sleeve 510 and the first sealing ring; the stirring shaft section b is provided with a vertical stirring blade installation groove for installing the stirring blade 56.

[0042] The stirring blade 56 includes a first stirring blade 561 fixed on one side of the stirring shaft 51 and a second stirring blade 562 fixed on the other opposite side of the stirring shaft 51. The blade body of the first stirring blade 561 extends downward and extends into the upper end of the feeding nozzle 21, and can fully stir the powder beside the feeding screw 61 and the powder entering the feeding nozzle 21, and can prevent the feeding screw 61 from clumping and clogging when feeding; the second stirring blade 562 is provided with two blade bodies facing each other up and down, which can fully stir the powder in the receiving hopper 2 and prevent the powder entering the feeding nozzle 21 from clumping and clogging.

[0043] The driving wheel 54 and several driven wheels 52 are located above the second support plate 42, and the meshing gear 55 is rotatably set on the rotating shaft 551, and the rotating shaft 551 is fixed on the second support plate 42; the feeding motor 62 is fixed on the second support plate 42; a muffler 7 for reducing noise is provided on the second support plate 42, so as to avoid the feeding device from generating large noise affecting the work of employees.

[0044] The upper end of the bearing sleeve 57 is fixed on the second support plate 42 and the lower end extends into the receiving hopper 2. Therefore, the second support plate 42 is provided with an avoidance hole for avoiding the bearing sleeve 57; the second support plate 42 is also provided with a conveying through hole to facilitate the powder in the conveying pipe 3 to enter the receiving hopper 2.

[0045] Since the feeding screw 61 needs to continuously stir and feed the powder, it is easy to have problems such as wear. If the feeding screw 61 is designed as an integrated structure and installed inside the stirring shaft 51, it is difficult to replace due to wear and tear, and it takes a long time, which reduces production efficiency. Therefore, the feeding screw 61 is designed as a split structure. The feeding screw 61 includes a smooth shaft section 611 installed in the stirring shaft 51 and a feeding section 612 with a spiral groove on the periphery. The feeding section 612 is fixed to the lower end of the shaft section 611 by bolts. The feeding section 612 fits the inner wall of the lower end of the feeding nozzle 21, and the powder is transported downward through the spiral groove of the feeding screw 61. If the feeding section 612 is severely worn, the feeding section 612 can be directly replaced by loosening the bolts. The replacement is simple and the maintenance time is short. The feeding section 612 is configured as a spiral groove structure, which can, on the one hand, add powder to the feeding nozzle 21 in a quantitative manner; on the other hand, when feeding is not needed, the feeding motor 62 stops driving the feeding screw 61 to rotate, and the powder is stored in the spiral groove of the feeding screw 61, and the powder will not fall.

[0046] The feeding screw 61 is installed in the stirring shaft 51 through a second bearing, and a second sealing ring is sleeved on the outer periphery of the feeding screw 61 in the stirring shaft section b, and a mounting groove for mounting the second bearing and the second sealing ring is provided inside the lower end of the stirring shaft section b; the second sealing ring is provided to achieve sealing between the feeding screw 61 and the stirring shaft 51, to prevent powder from entering between the stirring shaft 51 and the feeding screw 61 to hinder the rotation of the stirring shaft 51 and the feeding screw 61, thereby avoiding affecting the stirring and feeding of the powder.

[0047] When the high-efficiency powder feeding device 100 provided by the present invention is applied, the vacuum feeder 11 conveys the powder into the storage bin 12, the feeding motor 13 drives the rotating conical table 14 to drive the stirring blade 15 to stir the powder in the storage bin 12, and at the same time, the stirring blade 15 pushes the powder into the feed hole 121 and enters the receiving hopper 2 below through the feed pipe 3, and the stirring motor 53 drives the driving wheel 54 to drive the stirring shaft 51 to rotate, thereby driving a pair of stirring blades 56 fixed on the stirring shaft 51 to stir the receiving material. The powder in the bucket 2 is stirred so that the powder evenly enters the spiral groove of the feeding screw 61. When feeding is needed, the weight of the feeding can be adjusted by controlling the number of revolutions of the feeding motor 62. The three feeding motors 62 respectively drive the three feeding screws 61 to rotate at the same time to allow the powder to enter the cup below through the feeding nozzle 21, and the feeding of the three cups is completed at the same time. When feeding is not needed, the feeding motor 62 stops driving the feeding screw 61 to rotate, and the powder is stored in the spiral groove of the feeding screw 61, and the powder will not fall.

[0048] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An efficient powder feeding device, characterized in that: It includes a storage module for storing powder, a receiving hopper arranged below the storage module, a feeding pipe for conveying the powder in the storage module to the receiving hopper, a support frame for fixing the storage module and the receiving hopper, a stirring module for stirring the powder in the receiving hopper, and several feeding modules for quantitatively adding the powder in the receiving hopper into a cup; the stirring module includes several stirring shafts whose lower ends extend into the receiving hopper, and a pair of stirring blades are installed oppositely on both sides of the stirring shaft; the feeding module includes a feeding screw inserted into the stirring shaft and extending from the upper and lower ends of the stirring shaft, and a feeding motor fixed on the support frame and driving the feeding screw to rotate; the lower end of the receiving hopper is provided with several feeding nozzles corresponding to the upper and lower ends of the feeding screw.

2. A high-efficiency powder feeding device as claimed in claim 1, characterized in that: There are three feeding modules, three stirring shafts and three feeding nozzles, and the three feeding modules, the three stirring shafts and the three feeding nozzles are arranged in a triangle structure.

3. A high-efficiency powder feeding device as claimed in claim 1, characterized in that: The support frame includes a first support plate for installing the material storage module and a second support plate located below the first support plate and used for installing the receiving hopper. The first support plate and the second support plate are fixedly installed via Z-shaped support plates on both sides.

4. A high-efficiency powder feeding device as claimed in claim 3, characterized in that: The material storage module includes a vacuum loader, a storage bin connected to the vacuum loader and used to store powder, a loading motor fixed on the first support plate, a rotating conical table arranged at the bottom of the storage bin and driven to rotate by the loading motor, and a plurality of stirring blades arranged on the rotating conical table and used to stir the powder in the storage bin; a feeding hole connected to the feeding pipe is arranged at the bottom of the storage bin, and a first material level detector and a second material level detector are respectively arranged on the storage bin and the receiving hopper.

5. A high-efficiency powder feeding device as claimed in claim 3, characterized in that: The stirring module also includes a driven wheel fixed to the upper end of the stirring shaft, a stirring motor installed on the second support plate, and a driving wheel driven to rotate by the stirring motor. The driving wheel and the driven wheel are connected together through meshing gears to realize meshing transmission.

6. A high-efficiency powder feeding device as claimed in claim 5, characterized in that: The interior of the stirring shaft is provided with an axial hole that passes through the upper and lower ends and for the feeding screw to pass through. A bearing sleeve is installed and fixed on the upper surface of the second support plate through a stud. A plurality of first bearings are provided on the outer periphery of the stirring shaft. The stirring shaft is installed in the bearing sleeve through the first bearings. The outer periphery of the stirring shaft is provided with a first sealing ring for achieving sealing between the stirring shaft and the bearing sleeve.

7. A high-efficiency powder feeding device as claimed in claim 1, characterized in that: The stirring blade includes a first stirring blade fixed on one side of the stirring shaft and a second stirring blade fixed on the other opposite side of the stirring shaft. The blade body of the first stirring blade extends downward and extends into the upper end of the feeding nozzle, and the second stirring blade is provided with two blade bodies facing each other up and down.

8. A high-efficiency powder feeding device as claimed in claim 6, characterized in that: The driving wheel and the driven wheel are both located on the upper surface of the second support plate, the meshing gear is rotatably arranged on a rotating shaft, and the rotating shaft is fixed on the second support plate; the feeding motor is fixed on the second support plate; the second support plate is also provided with a muffler for reducing noise, an avoidance hole for avoiding the bearing sleeve, and a conveying through hole connecting the conveying pipe and the receiving hopper.

9. A high-efficiency powder feeding device as claimed in claim 1, characterized in that: The feeding screw is installed in the stirring shaft through a second bearing, and a second sealing ring is sleeved on the outer periphery of the feeding screw for achieving sealing between the stirring shaft and the feeding screw.

10. A high-efficiency powder feeding device as claimed in claim 1, characterized in that: The feeding screw comprises a smooth rotating shaft section installed in the stirring shaft and a feeding section with a spiral groove arranged on the outer circumference, and the feeding section is in contact with the inner wall of the lower end of the feeding nozzle.

Images