Linear loose powder filling line

Abstract

The utility model relates to a linear loose powder filling line, including linear work position conversion conveyor, work position conversion conveyor passes through work position, work position includes in proper order: take bottle work position, take bottle device equidistance in proper order and catch empty bottle into the starting position of work position conversion conveyor, first weighing work position is provided with first weighing device, filling weighing work position is provided with first filling machine and second weighing device, first filling machine is used for filling loose powder into empty bottle, and second weighing device weighs the bottle body simultaneously with filling, inner plug placement work position is provided with take -place inner plug mechanism, puff placement work position is provided with puff take -place mechanism, cap placement work position is provided with cap take -place mechanism, and the cap is placed in the bottle mouth position, cap screwing work position is provided with torsion cap screwing mechanism. Through linear assembly line design realizes the seamless link of procedure, eliminates the turnover time loss of traditional annular layout, and each work position parallel operation and adopts automatic device, and production efficiency is improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, specifically a linear loose powder filling line. Background Technology

[0002] Setting powder, a common cosmetic product, typically consists of a bottle, inner stopper, powder puff, and cap. The bottle contains loose powder, the bottle opening is secured to the inner stopper via a snap-fit ​​mechanism, the powder puff is placed inside the inner stopper, and the cap is threaded onto the bottle opening for a seal. In traditional production processes, the filling and assembly of setting powder mainly involve two methods: The first method uses separate filling stations and installation stations for inner stoppers, powder puffs, and bottle caps, with manual handling facilitating station transitions between processes. While this method is structurally simple, it is labor-intensive, has low production efficiency, and manual operation is prone to errors, making it difficult to meet the needs of large-scale production.

[0003] The second approach arranges the filling station and the installation stations for inner stoppers, powder puffs, and bottle caps in a circular structure to improve automation. However, this circular layout occupies a large amount of space, which is not conducive to the rational use of workshop space, increases equipment costs and site requirements, and is particularly uneconomical and inflexible for small and medium-sized manufacturing enterprises.

[0004] Therefore, the existing makeup powder filling and assembly processes still have room for improvement in terms of efficiency, space utilization, and production costs, and there is an urgent need for a more efficient, compact, and low-cost automated production solution. Utility Model Content

[0005] To address the technical problems in the background art, this utility model discloses a linear loose powder filling line.

[0006] This utility model provides a linear bulk powder filling line, including multiple workstations arranged linearly and sequentially, and a linear workstation transfer conveyor that passes through the workstations; the workstations sequentially include: The bottle picking station is equipped with an empty bottle conveyor and a bottle picking device; the empty bottle conveyor transports the empty bottles to the starting position of the station transfer conveyor; the bottle picking device picks up the empty bottles sequentially at equal intervals and puts them into the starting position of the station transfer conveyor. The first weighing station is equipped with a first weighing device for weighing empty bottles; The filling and weighing station is equipped with a first filling machine and a second weighing device; the first filling machine is used to fill loose powder into empty bottles, and the second weighing device weighs the bottles at the same time. The inner plug placement station is equipped with an inner plug picking and placing mechanism to insert the inner plug card into the bottle mouth of the bottle after the powder has been filled. The powder puff placement station is equipped with a powder puff taking and putting mechanism to place the powder puff into the inner plug; The bottle cap placement station is equipped with a bottle cap picking and placing mechanism to place the bottle cap at the bottle mouth; The capping station is equipped with a torque capping mechanism to screw the cap onto the bottle neck and tighten it. The output station transports the filled setting powder to the packing station.

[0007] Furthermore, the conveyor belt of the workstation transfer conveyor is equipped with equally spaced bottle molds, which are used to clamp and position the bottles.

[0008] To improve filling efficiency, the first filling machine has a large flow rate, making it difficult to accurately fill the set weight of loose powder into the bottles. Therefore, a further improvement is made: a filling station is set up between the first weighing station and the filling weighing station; a second filling machine is installed at the filling station; the flow rate of the second filling machine is greater than that of the first filling machine. During filling, the second filling machine with the larger flow rate is used first to fill most of the loose powder into the bottles. When the bottles are transported to the filling weighing station, the first filling machine with the smaller flow rate is used to fill the bottles with loose powder. Due to the smaller flow rate, the control precision is higher, and the second weighing device weighs in real time, resulting in higher accuracy in the weight of the loose powder filled into the bottles.

[0009] Since some loose powder will detach from the bottle mouth and adhere to the outer wall of the bottle mouth during filling, a further improvement is made: a bottle mouth cleaning station is set up between the filling and weighing station and the inner plug placement station. The bottle mouth cleaning station is equipped with a bottle mouth cleaning device to clean the powder residue remaining on the outer wall of the bottle mouth after filling.

[0010] When the weight of the filled bottle does not match the set weight, it is considered a defective product and cannot be sold. Manually removing bottles with incorrect weight is labor-intensive and prone to errors. Therefore, a further improvement is made: a weighing and rejection station is set up between the bottle mouth cleaning station and the inner stopper placement station; the weighing and rejection station is equipped with a third weighing device and a first rejection device; the third weighing device weighs the bottle; the first rejection device removes the bottle with incorrect weight from the station transfer conveyor.

[0011] When placing the inner plug, there are instances where the inner plug does not fit accurately into the bottle opening. Bottles with misaligned inner plugs can affect the normal operation of subsequent workstations. Additionally, the inner plug may detach from the bottle, resulting in a bottle without an inner plug. Therefore, a further improvement is made: an inner plug detection and rejection station is installed between the inner plug placement station and the powder puff placement station. This station is equipped with an inner plug distance detector and a second rejection device. The inner plug distance detector detects the height between the inner plugs; the second rejection device removes bottles with inner plugs whose height does not match the set height from the station transfer conveyor.

[0012] Because the inner plug creates airflow inside the bottle when it is attached to the bottle opening, the airflow can cause loose powder inside the bottle to fly out and adhere to the outside of the inner plug, thus affecting product quality. Based on this, a further improvement is made: an inner plug blowing and suction dust removal station is designed between the inner plug detection and rejection station and the powder puff placement station; the inner plug blowing and suction dust removal station is equipped with an inner plug dust removal device, which has a first air pipe directly facing the inner plug, and the first air pipe sequentially blows and sucks air.

[0013] The bottle cap is only placed at the top of the bottle mouth, and its position is unstable. The capping device has difficulty accurately screwing the bottle cap onto the bottle mouth. Based on this, a further improvement is made: the bottle cap placement station is also equipped with a pre-screwing mechanism, which pre-screws the bottle cap onto the bottle mouth.

[0014] Because bottle caps are prone to misalignment when screwed onto the bottle neck, even after rotating a set number of times, they remain detached from the bottle, resulting in crooked caps or no caps at all. This affects the normal operation of the next process. Therefore, a further improvement is made: between the capping station and the output station, a bottle cap inspection station, a bottle body blowing and suction dust removal station, and a bottle cap rejection station are sequentially installed. The bottle cap inspection station is equipped with a bottle cap distance detector to detect the height of the bottle cap; the bottle body blowing and suction dust removal station is equipped with a bottle body dust removal device with a second air pipe directly facing the bottle, which circulates air blowing and suction sequentially; the bottle cap rejection station is equipped with a third rejection device to remove crooked or no-cap bottles from the station transfer conveyor.

[0015] Because loose powder easily adheres to the bottom of the bottle, which does not meet product quality requirements, the following design is made: a bottle bottom blowing and suction dust removal station is also set up on the finished product conveyor; the bottle bottom blowing and suction dust removal station is equipped with a bottle bottom dust removal device, and the bottle bottom dust removal device is equipped with a third air pipe facing the bottom of the bottle, and the third air pipe blows and sucks air in sequence.

[0016] The beneficial effects of this utility model are: 1. Seamless process connection is achieved through linear assembly line design, eliminating the turnaround time loss of traditional circular layout; parallel operation of each workstation and the use of automated devices significantly improve production efficiency.

[0017] 2. Since workshops are generally rectangular, the linear layout significantly improves equipment compactness and space utilization, allowing more production lines to be arranged in the same workshop.

[0018] 3. Eliminates the traditional manual handling process, reducing labor costs and operational errors. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a top view of the present invention, showing only the bottle picking station and the empty bottle blowing and sucking station; Figure 2 This is a top view of the present invention, showing only the first weighing station, the filling station, the filling and weighing station, the bottle mouth cleaning station, and the weighing rejection station, wherein A2 and Figure 1 Connect A1 in the middle; Figure 3 This is a top view of the present invention, showing only the inner plug placement station, the inner plug detection and rejection station, and the inner plug blowing and suction dust removal station, wherein B2 and Figure 2 Connect B1 in the middle; Figure 4 This is a top view of the present invention, showing only the powder puff placement station, bottle cap placement station, cap screwing station, and bottle cap inspection station, wherein C2 and Figure 3 C1 is connected in the middle; Figure 5 This is a top view of the present invention, showing only the bottle body blowing and suction dust removal station, the output station, the bottle cap rejection station, and the bottle bottom blowing and suction dust removal station, wherein D2 and Figure 4 Connect D1 in the middle; Figure 6 yes Figure 3 Enlarged view at point E in the middle; Figure 7 This is a schematic diagram of the bottle-removing device; Figure 8 This is a schematic diagram of the bottle-removing device from another perspective; Figure 9 This is a schematic diagram of the installation structure of the first weighing device; Figure 10 This is a schematic diagram of the first weighing device; Figure 11 This is a schematic diagram of the first rejection device; Figure 12 This is a schematic diagram of the installation structure of the inner plug clamping device; Figure 13 This is a structural diagram of the hidden parts of the inner plug clamping device; Figure 14This is a front view of the hidden parts of the inner plug clamping device; Figure 15 This is a schematic diagram of the powder puff conveying, picking up, placing, and adjusting structure; Figure 16 yes Figure 15 Enlarged view at point F; In the diagram: 1. Station transfer conveyor; 2. Bottle picking station; 3. First weighing station; 4. Filling and weighing station; 5. Inner stopper placement station; 6. Powder puff placement station; 7. Bottle cap placement station; 8. Capping station; 9. Output station; 10. Filling station; 11. Finished product conveyor; 12. Empty bottle blowing and suction station; 13. Bottle mouth cleaning station; 14. Weighing and rejection station; 15. Inner stopper detection and rejection station; 16. Inner stopper blowing and suction dust removal station; 17. Bottle cap detection station; 18. Bottle body blowing and suction dust removal station; 19. Bottle cap rejection station; 20. Bottle bottom blowing and suction dust removal station; 21. Empty bottle conveyor; 22. Bottle picking device; 31. First weighing device; 41. First filling machine; 42. Second weighing device; 51. Inner stopper picking and placing mechanism. 52. Inner plug conveyor; 53. Inner plug clamping device; 61. Powder puff picking and placing mechanism; 62. Powder puff conveyor; 63. Powder puff vision system; 71. Bottle cap picking and placing mechanism; 72. Pre-spinning mechanism; 73. Bottle cap conveyor; 81. Torque capping mechanism; 101. Second filling machine; 121. Empty bottle dust removal device; 131. Bottle mouth cleaning device; 141. Third weighing device; 142. First rejection device; 151. Inner plug distance detector; 152. Second rejection device; 161. Inner plug dust removal device; 171. Bottle cap distance detector; 181. Bottle body dust removal device; 191. Third rejection device; 201. Bottle bottom dust removal device; 311. Weighing bracket; 312. Weighing cylinder; 313. Weighing mounting plate; 31 4. Weighing bracket; 315. Weighing sensor; 531. Drive motor; 532. Belt; 533. Inner plug housing; 534. End synchronous pulley; 535. Middle synchronous pulley; 536. Inner plug guide post; 537. Inner plug guide sleeve; 538. Inner plug top plate; 539. Inner plug lead screw; 540. Inner plug lead screw nut; 1001. Bottle mold; 1421. First rejection bracket; 1422. First rejection guide post; 1423. First rejection top plate; 1424. First rejection lifting plate; 1425. First rejection guide sleeve; 1426. First rejection linear guide rail; 1427. First rejection lifting cylinder; 1428. First rejection clamping cylinder; 1429. First rejection clamping block; 1 430. First rejection conveyor; 1431. First rejection transfer cylinder; 2001. Bottle picking station fixing plate; 2002. Bottle picking station synchronous pulley; 2003. Bottle picking station synchronous belt; 2004. Bottle picking station drive motor; 2005. Bottle picking station linear guide rail; 2006. Bottle picking station fixing seat; 2007. Bottle picking station lifting cylinder; 2008. Bottle picking station connecting plate; 2009. Bottle picking station fixed suction cup; 2010. Bottle picking station adjusting linear guide rail; 2011. Bottle picking station floating suction cup; 2012. Bottle picking station adjusting cylinder; 6101. First linear slide; 6102. Powder puff mounting plate; 6103. Second linear slide; 6104. Powder puff fixing plate; 6105. Powder puff connecting seat;6106. Powder puff adjustment motor; 6107. Pneumatic fingers; 6108. Powder puff gripper; 6201. Powder puff conveyor belt; 6202. Powder puff feeding plate; 6203. Powder puff feeding hole; 6204. First connecting rod; 6205. Fixing ring; 6206. Suction head; 6207. Powder puff cylinder. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] like Figure 1-5 As shown, this utility model discloses a linear bulk powder filling line, including multiple workstations arranged linearly and sequentially, and a linear workstation transfer conveyor 1, as shown. Figure 6 As shown, multiple bottle molds 1001 are installed on the conveyor belt of the station transfer conveyor 1 at equal intervals. The bottle picking device 22 picks up empty bottles and places them into the bottle molds 1001, thereby equidistantly arranging the bottles on the station transfer conveyor 1. The station transfer conveyor 1 then sequentially transports the bottles to each station.

[0023] The aforementioned workstations are specifically set up in sequence as follows: bottle picking workstation 2, empty bottle blowing and suction workstation 12, first weighing workstation 3, filling workstation 10, filling and weighing workstation 4, bottle mouth cleaning workstation 13, weighing and rejection workstation 14, inner plug placement workstation 5, inner plug detection and rejection workstation 15, inner plug blowing and suction dust removal workstation 16, powder puff placement workstation 6, bottle cap placement workstation 7, capping workstation 8, bottle cap detection workstation 17, bottle body blowing and suction dust removal workstation 18, bottle cap rejection workstation 19, output workstation 9, and bottle bottom blowing and suction dust removal workstation 20.

[0024] Bottle picking station 2 is equipped with an empty bottle conveyor 21 located on one side of the station transfer conveyor 1 and parallel to it, and a bottle picking device 22 located at the tail end of the empty bottle conveyor 21. The tail end of the empty bottle conveyor 21 is located close to the head end of the station transfer conveyor 1, and in the main view projection, the tail end of the empty bottle conveyor 21 overlaps with the head end of the station transfer conveyor 1. The empty bottle conveyor 21 transports empty bottles to its tail end, and the bottle picking device 22 picks up the empty bottles and places them onto the station transfer conveyor 1. Its specific structure is as follows: Figure 7 and Figure 8As shown, the device includes a vertically arranged bottle-picking station fixing plate 2001. Two bottle-picking station synchronous pulleys 2002 of the same height are installed on the upper part of the side of the bottle-picking station fixing plate 2001 facing the station transfer conveyor 1. A bottle-picking station synchronous belt 2003 meshes between the bottle-picking station synchronous pulleys 2002. A bottle-picking station drive motor 2004 is installed on the other side of the bottle-picking station fixing plate 2001. In this embodiment, the bottle-picking station drive motor 2004 is a geared motor, and its drive end is fixedly connected to one of the bottle-picking station synchronous pulleys 2002, thereby driving the bottle-picking station synchronous belt 2003 to move. A horizontally arranged bottle-picking station linear guide rail 2005 is installed on the upper part of the side of the bottle-picking station fixing plate 2001 facing the station transfer conveyor 1. A bottle-picking station fixing seat 2006 is installed at the lower part of the synchronous belt 2003 at the bottle-picking station by clamping and fixing. One side of the fixing seat is fixedly connected to the slider of the linear guide rail 2005 at the bottle-picking station, and the other side is fixedly installed with a bottle-picking station lifting cylinder 2007 (a three-axis cylinder). The drive end of the bottle-picking station lifting cylinder 2007 faces downward and is equipped with a horizontally arranged bottle-picking station connecting plate 2008. The length direction of the bottle-picking station connecting plate 2008 extends in the conveying direction of the station conversion conveyor 1, and a vertically arranged bottle-picking station fixing suction cup 2009 is installed on the lower side of the connecting plate 2008 near the station conversion conveyor 1. A bottle-picking station adjusting linear guide rail 2010 is also installed on the lower side of the bottle-picking station connecting plate 2008 along its length direction, and a bottle-picking station floating suction cup 2011 is vertically installed on its slider. A bottle-picking station adjusting cylinder 2012 is also installed on the bottle-picking station connecting plate 2008. Its drive end is fixedly connected to the bottle-picking station floating suction cup 2011 to drive the bottle-picking station floating suction cup 2011 to slide. The reason for this arrangement is that empty bottles are arranged linearly and sequentially at the tail end of the empty bottle conveyor 21, while empty bottles are arranged at intervals on the station conversion conveyor 1. Therefore, the bottle-picking station floating suction cup 2011 first moves towards the bottle-picking station fixed suction cup 2009, so that the two suction cups can simultaneously pick up two adjacent empty bottles from the empty bottle conveyor 21. When it is necessary to place the empty bottle on the station conversion conveyor 1, the bottle-picking station floating suction cup 2011 moves away from the bottle-picking station fixed suction cup 2009. At this time, the distance between the two suction cups is consistent with the distance between adjacent bottle molds 1001 on the station conversion conveyor 1, so that two empty bottles can be transferred at the same time. In this embodiment, the bottle-picking station adjustment cylinder 2012 is a stroke-adjustable cylinder to adjust the spacing accuracy of the two suction cups.

[0025] like Figure 6 As shown, multiple bottle molds 1001 are installed on the conveyor belt of the station transfer conveyor 1 at equal intervals. Each bottle mold 1001 consists of two clamping blocks, with V-shaped grooves on opposite sides for clamping and limiting the bottle body. The bottle picking device 22 picks up empty bottles and places them into the bottle mold 1001, thereby ensuring that the bottles on the station transfer conveyor 1 are arranged at equal intervals.

[0026] The empty bottle blowing and suction station 12 is equipped with an empty bottle dust removal device 121. The empty bottle dust removal device 121 is equipped with a fourth air pipe facing the inside of the bottle. The fourth air pipe circulates air blowing and suction in sequence. The blowing action blows up the impurities inside the bottle, causing them to detach from the inner wall of the bottle; the suction action sucks the impurities out of the bottle, achieving the purpose of cleaning.

[0027] The first weighing station 3 is equipped with a first weighing device 31 for measuring the weight of empty bottles. The specific structure of the first weighing device 31 is as follows: Figure 9 and Figure 10 As shown, the system includes a weighing bracket 311 located on one side of the station transfer conveyor 1. A weighing cylinder 312 is mounted on the weighing bracket 311, with its drive end facing upwards. A horizontally arranged weighing mounting plate 313 extending towards the station transfer conveyor 1 is mounted on the weighing mounting plate 313. A vertically extending weighing bracket 314 is mounted on the upper end of the weighing mounting plate 313, and a weighing sensor 315 facing the bottom of the empty bottle is mounted on the upper end of the weighing bracket 314. The station transfer conveyor 1 has two parallel, spaced-apart conveyor belts, on which empty bottles are symmetrically placed. When the weighing cylinder 312 drives the weighing sensor 315 upwards, the weighing sensor 315 lifts the empty bottle and weighs it; when the weighing cylinder 312 drives the weighing sensor 315 downwards, the empty bottle falls back onto the conveyor belt of the station transfer conveyor 1.

[0028] The filling station 10 is equipped with a second filling machine 101 to fill loose powder into bottles. The filling and weighing station 4 is equipped with a first filling machine 41 and a second weighing device 42, the second weighing device 42 having the same structure as the first weighing device 31; the first filling machine 41 is used to fill the loose powder into empty bottles, and the second weighing device 42 weighs the bottles simultaneously. The weight of the loose powder can be obtained by subtracting the data measured by the first weighing device 31 from the data measured by the second weighing device 42. The flow rate of the second filling machine 101 is greater than that of the first filling machine 41. During filling, the second filling machine 101 with a larger flow rate is used first to fill most of the loose powder into the bottles. When the bottles are transported to the filling and weighing station 4, the first filling machine 41 with a smaller flow rate is used to fill the bottles with loose powder; due to the smaller flow rate, the control accuracy is higher, and the second weighing device 42 weighs in real time, resulting in higher accuracy of the weight of the loose powder filled into the bottles.

[0029] The bottle mouth cleaning station 13 is equipped with a bottle mouth cleaning device 131, which includes a clamping cylinder for fixing the bottle body and a circularly moving brush. The brush abuts against the outer side of the bottle mouth to clean the powder residue remaining on the outer wall of the bottle mouth after filling.

[0030] The weighing and rejection station 14 is equipped with a third weighing device 141 and a first rejection device 142. The third weighing device 141 has the same structure as the first weighing device 141 and weighs the bottles. The first rejection device 142 removes bottles that do not match the set weight from the station transfer conveyor 1. The specific structure of the first rejection device 142 is as follows: Figure 11 As shown, the device includes a first rejection bracket 1421, which comprises three first rejection guide posts 1422 arranged in an isosceles triangle. The lower ends of the guide posts are fixedly connected to the ground, and the upper ends are connected and fixed via a first rejection top plate 1423. A horizontally arranged first rejection lifting plate 1424 is provided on the lower side of the first rejection top plate 1423. A first rejection guide sleeve 1425, which sleeves the first rejection guide posts 1422, is installed on the first rejection lifting plate 1424 to guide its lifting motion. A first rejection transfer cylinder 1431 and a first rejection linear guide rail 1426 are installed on the lower side of the first rejection lifting plate 1424. A first rejection lifting cylinder 1427 is installed on the slider of the first rejection linear guide rail 1426, with its drive end facing downwards. The first rejection lifting cylinder 1427 is equipped with a first rejection clamping cylinder 1428 at its drive end. This cylinder is a large-diameter open clamping cylinder, and its opening and closing direction is perpendicular to the conveying direction of the station conversion conveyor. Its drive end is equipped with a first rejection clamping block 1429 with a relative V-shaped groove, which is used to clamp bottles that do not meet the weight requirements. Under the action of the first rejection transfer cylinder 1431, the bottle is transferred to the first rejection conveyor 1430.

[0031] The inner plug placement station 5 is equipped with an inner plug conveyor 52 and an inner plug picking and placing mechanism 51. The inner plug conveyor 52 and the station transfer conveyor 1 are arranged perpendicularly, and the tail end of the inner plug conveyor 52 is close to the station transfer conveyor 1. The inner plug picking and placing mechanism 51 is located at the tail end of the inner plug conveyor 52, grabs the inner plug at the tail end of the inner plug conveyor 52, and inserts the inner plug into the bottle mouth of the bottle after the powder has been filled.

[0032] The inner plug placement station 5 also has an inner plug clamping device 53, the specific structure of which is as follows: Figure 12-14As shown, the system includes a belt 532 positioned directly above the conveyor belt of the workstation transfer conveyor 1 and driven by a drive motor 531. The lower end of the belt 532 is inclined and moves to the right. The lower end of the belt 532 is located on the right side, and the upper end is located on the left side. When the bottle with an inner plug at the bottle mouth moves to the belt 532, the right end of the inner plug preferentially contacts the belt 532 and is preferentially subjected to the pressure of the belt 532, thereby causing the inner plug to be inclined and its right end to be preferentially pressed into the bottle. During the pressing process, the left end of the inner plug and the bottle form a flared air passage that opens to the left and communicates with the outside. During the pressing process, the air inside the bottle can flow out from the air passage, thereby maintaining the stable air pressure inside the bottle and preventing high-pressure gas from being ejected outward from the assembly gap of the inner plug due to the increase in air pressure inside the bottle.

[0033] The specific installation structure of belt 532 is as follows: it includes a housing 533 for pressing the inner plug, with end synchronous pulleys 534 of the same height installed at both ends. Belt 532 is a synchronous belt that meshes with the end synchronous pulleys 534. Multiple middle synchronous pulleys 535 are arranged linearly between the end synchronous pulleys 534, meshing with belt 532, and with their lower ends lower than the end synchronous pulleys 534. Under the action of the middle synchronous pulleys 535, belt 532 protrudes downward, causing the lower end face of belt 532 to be arranged at an angle.

[0034] To improve the accuracy of the inner plug of the belt 532 and to make the belt 532 compatible with other types of cosmetics, the height of the belt 532 is also adjustable. Specifically, it includes four guide posts 536 arranged in a rectangle for the inner plug; the lower ends of the guide posts 536 are fixedly connected to the ground, and the upper ends are fixedly connected via a top plate 538. The top plate of the inner plug housing 533 protrudes outward and is fitted with a guide sleeve 537 that connects to the guide posts 536. A vertically arranged lead screw 539 is mounted on the top plate 538. The lead screw 539 and the top plate 538 are rotatably connected under the action of bearings and will not undergo axial displacement. A lead screw nut 540, threadedly connected to the lead screw 539, is provided on the inner plug housing 533. By driving the screw 539 for the inner pressure plug, the screw nut 540 for the inner pressure plug can be raised and lowered, thereby adjusting the height of the belt 532.

[0035] The inner plug detection and rejection station 15 is equipped with an inner plug distance detector 151 and a second rejection device 152. The inner plug distance detector 151 is used to detect the height between inner plugs. When the inner plug is misaligned, the height of the inner plug is greater than the set height, and the measured value is less than the set value. When the inner plug picking and placing structure fails to accurately pick up the inner plug or the inner plug falls, resulting in no inner plug at the bottle mouth, the detection point of the inner plug distance detector 151 is at the upper end of the loose powder, the actual height is less than the set height, and the measured value is greater than the set value. In both of these cases, the requirements for inner plug installation are not met. The structure of the second rejection device 152 is the same as that of the first rejection device 142, and it removes bottles with inner plug heights that do not match the set height from the station transfer conveyor 1.

[0036] The inner stopper blowing and suction dust removal station 16 is equipped with an inner stopper dust removal device 161. The inner stopper dust removal device 161 has a first air pipe directly facing the inner stopper, which sequentially blows and sucks air. Because the inner stopper, when it engages with the bottle opening, creates airflow inside the bottle, this airflow can carry loose powder out of the bottle and adhere to the outside of the inner stopper, thus affecting product quality. Therefore, the first air pipe sequentially blows and sucks air. The blowing action lifts the powder inside the inner stopper, causing it to detach from the inner stopper; the suction action removes the powder, achieving the purpose of cleaning.

[0037] like Figure 15 As shown, the powder puff placement station 6 is equipped with a powder puff conveyor 62 and a powder puff picking and placing mechanism 61. The powder puff conveyor 62 and the station transfer conveyor 1 are arranged perpendicularly, with the tail end of the powder puff conveyor 62 close to the station transfer conveyor 1. The powder puff picking and placing mechanism 61 is located at the tail end of the powder puff conveyor 62, grabs the powder puff at the tail end of the powder puff conveyor 62, and inserts the powder puff into the inner plug.

[0038] The powder puff conveyor 62 is equipped with two parallel, spaced-apart, synchronously moving powder puff conveyor belts 6201. The upper side of the powder puff conveyor belts 6201 moves from the beginning to the end of the powder puff conveyor 62, close to the position of the workstation transfer conveyor 1.

[0039] like Figure 16As shown, the powder puff conveyor 62 has a powder puff discharge plate 6202 located directly above the powder puff conveyor belt 6201 at its first end. The powder puff discharge plate 6202 has a powder puff discharge hole 6203, allowing powder puffs to pass through. An upwardly extending powder puff discharge cylinder is located outside the powder puff discharge hole 6203, directly above it. Powder puffs are stacked vertically within the powder puff discharge cylinder. The powder puff discharge cylinder consists of four vertically extending first connecting rods 6204, evenly arranged circumferentially. The lower ends of the first connecting rods 6204 are fixedly connected to the powder puff discharge plate 6202. This arrangement provides sufficient operating space between the first connecting rods 6204 for hand placement of powder puffs, ensuring consistent support during stacking and resulting in higher stacking accuracy. Furthermore, the number of first connecting rods 6204 is set to four because the positions of the first connecting rods 6204 not only form a circle but also a square, which facilitates the marking and positioning of the first connecting rods 6204.

[0040] The first connecting rod 6204 extends upwards, but its position is unstable as it is only fixed at its lower end. Therefore, a retaining ring 6205 is provided above and near the powder puff feeding plate 6202, and the first connecting rod 6204 is inserted into the retaining ring 6205. The retaining ring 6205 is positioned near the powder puff feeding plate 6202, which improves the positioning accuracy when the powder puff falls; moreover, the portion of the first connecting rod 6204 above the retaining ring 6205 is elastic, making it easier to place the powder puff. A threaded hole is provided on the outer side of the retaining ring 6205, and a set screw is threadedly connected to it. The threaded end of the set screw abuts against the first connecting rod 6204, thus fixing the retaining ring 6205 in place. Moreover, the retaining ring 6205 will not tilt due to the limiting effect of the first connecting rod 6204.

[0041] A suction head 6206 is located directly below the powder puff feed cylinder and between the powder puff conveyor belts 6201. It is driven to rise and fall by a powder puff cylinder 6207 mounted on the powder puff conveyor 62. When the suction head 6206 rises, it adsorbs and fixes the lowest powder puff. When the suction head 6206 falls, the powder puff is supported by the powder puff conveyor belt 6201 and detaches from the suction head 6206.

[0042] The powder puff picking and placing mechanism 61 has the following specific structure: it includes a horizontally arranged first linear slide 6101, with a powder puff mounting plate 6102 for conveying the powder puff mounted on its drive end. A vertically arranged second linear slide 6103 is mounted on the powder puff mounting plate 6102, with a powder puff fixing plate 6104 mounted on its drive end; a powder puff connecting seat 6105 is mounted on the powder puff fixing plate 6104. A powder puff adjusting motor 6106 is fixedly mounted on the upper end of the powder puff connecting seat 6105, with its drive end facing downwards and fixedly connected to the housing of the pneumatic finger 6107. With the drive end of the pneumatic finger 6107 facing downwards, a powder puff gripper 6108 is mounted on the drive end of the pneumatic finger 6107, capable of gripping or releasing the powder puff.

[0043] A powder puff vision system 63 is also installed above the front end of the powder puff conveyor 62, including a camera, which takes pictures of the powder puff closest to the station conversion conveyor 1. The back-end controller of the powder puff vision system 63 identifies the ribbon on the powder puff and measures the orientation of the logo on the ribbon. In this way, it controls the rotation amplitude of the powder puff adjustment motor 6106 to adjust the orientation of the logo on the ribbon so that the logo on the ribbon is upright and parallel to the logo on the bottle.

[0044] The bottle cap placement station 7 is equipped with a bottle cap conveyor 73, a bottle cap picking and placing mechanism 71, and a pre-spinning mechanism 72. The bottle cap conveyor 73 and the station transfer conveyor 1 are arranged perpendicularly, with the tail end of the bottle cap conveyor 73 close to the station transfer conveyor 1. The bottle cap picking and placing mechanism 71 is located at the tail end of the bottle cap conveyor 73, grabbing the bottle caps at the tail end of the bottle cap conveyor 73 and placing the bottle caps at the bottle mouth. The pre-spinning mechanism 72 is used to grab the bottle caps at the bottle mouth and pre-spin them. The bottle caps can be pre-spinned half a turn or a full turn to achieve bottle cap positioning and prevent them from detaching from the bottle.

[0045] The capping station 8 is equipped with a torque capping mechanism 81, which is used to drive the bottle cap to rotate, measure the torque of the bottle cap, and tighten the bottle cap to the set torque.

[0046] Bottle cap inspection station 17 is equipped with a bottle cap distance detector 171 to detect the height of the bottle cap. When a bottle cap is missing, the bottle cap distance detector 171 detects the height of the inner plug; if this height is less than the set height, the measured value is greater than the set value. When a bottle cap is tilted, if the cap height is greater than the set height, the measured value is less than the set value. Both of these situations are considered unqualified.

[0047] The bottle blowing and suction dust removal station 18 is equipped with a bottle dust removal device 181. The bottle dust removal device 181 is equipped with a second air pipe facing the bottle. The second air pipe blows and sucks air in sequence.

[0048] The bottle cap rejection station 19 is equipped with a third rejection device 191 to remove bottles with crooked caps or no caps from the station transfer conveyor 1.

[0049] Output station 9 includes a finished product conveyor 11. The finished product conveyor 11 is located to one side of and parallel to the station transfer conveyor 1. The head end of the finished product conveyor 11 is connected to the tail end of the station transfer conveyor 1, and a gripping device is installed at the connection point to grip the bottles from the tail end of the station transfer conveyor 1 and place them onto the finished product conveyor 11. The finished product conveyor 11 then transports the filled setting powder to the packaging station.

[0050] The bottle bottom blowing and suction dust removal station 20 is set on the finished product conveyor 11. The bottle bottom blowing and suction dust removal station 20 is equipped with a bottle bottom dust removal device 201, a clamping cylinder, and a lifting cylinder. The clamping cylinder clamps and fixes the bottle body, and the lifting cylinder drives the bottle body to rise, so that the bottle body is detached from the finished product conveyor 11. The bottle bottom dust removal device 201 is equipped with a third air pipe facing the bottom of the bottle. The third air pipe sequentially blows and sucks air to complete the cleaning of the bottle bottom.

[0051] Compared to existing technologies, the advantages of this embodiment are: 1. Seamless process connection is achieved through a linear assembly line design, eliminating the turnaround time loss of traditional circular layouts; parallel operation at each workstation and the use of automated devices significantly improve production efficiency. 2. Since workshops are generally rectangular, the linear layout significantly improves equipment compactness and space utilization, allowing more production lines to be arranged in the same workshop. 3. The traditional manual handling process is eliminated, reducing labor costs and operational errors.

[0052] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A linear loose powder filling line, characterized in that, It includes multiple workstations arranged linearly and sequentially, and also includes a linear workstation transfer conveyor (1) that passes through the workstations; the workstations sequentially include: The bottle picking station (2) is equipped with an empty bottle conveyor (21) and a bottle picking device (22); the empty bottle conveyor (21) transports the empty bottles to the starting position of the station transfer conveyor (1); the bottle picking device (22) sequentially grabs the empty bottles at equal intervals and puts them into the starting position of the station transfer conveyor (1); The first weighing station (3) is equipped with a first weighing device (31) for weighing empty bottles; The filling and weighing station (4) is equipped with a first filling machine (41) and a second weighing device (42); the first filling machine (41) is used to fill loose powder into empty bottles, and the second weighing device (42) weighs the bottle body at the same time as filling. The inner plug placement station (5) is equipped with an inner plug picking and placing mechanism (51) to insert the inner plug into the bottle mouth of the bottle after the powder is filled. The powder puff placement station (6) is equipped with a powder puff taking and placing mechanism (61) to place the powder puff in the inner plug; The bottle cap placement station (7) is equipped with a bottle cap picking and placing mechanism (71) to place the bottle cap at the bottle mouth position; The capping station (8) is equipped with a torque capping mechanism (81) to screw the cap onto the bottle opening and tighten it. The output station (9) is equipped with a finished product conveyor (11), the first end of which is connected to the tail end of the station conversion conveyor, which transports the filled setting powder to the boxing station.

2. The linear loose powder filling line according to claim 1, characterized in that: The conveyor belt of the workstation conversion conveyor (1) is provided with bottle molds (1001) at equal intervals, and the bottle molds (1001) are used to clamp and position the bottle.

3. The linear loose powder filling line according to claim 1, characterized in that: A filling station (10) is also provided between the first weighing station (3) and the filling weighing station (4). The filling station (10) is equipped with a second filling machine (101). The flow rate of the second filling machine (101) is greater than that of the first filling machine (41).

4. A linear loose powder filling line according to claim 1, characterized in that: A bottle mouth cleaning station (13) is also provided between the filling and weighing station (4) and the inner plug placement station (5). The bottle mouth cleaning station (13) is equipped with a bottle mouth cleaning device (131) for cleaning the powder residue on the outer wall of the bottle mouth after filling.

5. A linear loose powder filling line according to claim 4, characterized in that: A weighing and rejection station (14) is also provided between the bottle mouth cleaning station (13) and the inner plug placement station (5). The weighing and rejection station (14) is equipped with a third weighing device (141) and a first rejection device (142). The third weighing device (141) weighs the bottle; The first rejection device (142) removes bottles that do not match the set weight from the station transfer conveyor (1).

6. A linear loose powder filling line according to claim 1, characterized in that: An inner plug detection and rejection station (15) is also provided between the inner plug placement station (5) and the powder puff placement station (6). The inner plug detection and rejection station (15) is equipped with an inner plug distance detector (151) and a second rejection device (152). The inner plug distance detector (151) is used to detect the height between the inner plugs; The second rejection device (152) removes bottles whose inner plug height does not match the set height from the station transfer conveyor (1).

7. A linear loose powder filling line according to claim 6, characterized in that: An inner plug blowing and suction dust removal station (16) is also designed between the inner plug detection and rejection station (15) and the powder puff placement station (6). The inner plug blowing and suction dust removal station (16) is equipped with an inner plug dust removal device (161). The inner plug dust removal device (161) is equipped with a first air pipe facing the inner plug. The first air pipe blows and sucks air in sequence.

8. A linear loose powder filling line according to claim 1, characterized in that: The bottle cap placement station (7) is also equipped with a pre-rotation mechanism (72), which pre-rotates the bottle cap at the bottle mouth position.

9. A linear loose powder filling line according to claim 1, characterized in that: Between the capping station (8) and the output station (9), there are also a bottle cap inspection station (17), a bottle body blowing and suction dust removal station (18), and a bottle cap rejection station (19). The bottle cap detection station (17) is equipped with a bottle cap distance detector (171) for detecting the height of the bottle cap; The bottle blowing and suction dust removal station (18) is equipped with a bottle dust removal device (181), and the bottle dust removal device (181) is equipped with a second air pipe facing the bottle, and the second air pipe blows and sucks air in sequence. The bottle cap rejection station (19) is equipped with a third rejection device (191) to remove bottles with crooked caps or no caps from the station transfer conveyor (1).

10. A linear loose powder filling line according to claim 1, characterized in that: The finished product conveyor (11) is also equipped with a bottle bottom blowing and suction dust removal station (20); The bottle bottom blowing and suction dust removal station (20) is equipped with a bottle bottom dust removal device (201). The bottle bottom dust removal device (201) is equipped with a third air pipe facing the bottom of the bottle. The third air pipe blows and sucks air in sequence.

Images