Automatic assembly production line for cosmetic hair ends

Abstract

The invention discloses an automatic assembly production line for cosmetic hair heads, which comprises a rack, a conveying line, a hair head feeding mechanism, a pre-pressing mechanism, a brush rod righting mechanism, a hair head carrying mechanism, a hair head pressing mechanism, a heating mechanism, a connecting rod dotting mechanism, a drawing detection mechanism and a discharging mechanism, the pre-pressing mechanism, the brush rod righting mechanism, the bristle head carrying mechanism, the bristle head pressing mechanism, the heating mechanism, the connecting rod dotting mechanism, the drawing detection mechanism and the discharging mechanism are linearly arranged on the rack. The conveying line is used for conveying a positioning jig, at least one positioning groove is formed in the positioning jig, and the positioning grooves are used for fixing brush rods. The problems that the manual workload is large, the assembling efficiency is low and large-batch assembling production is difficult to meet due to the fact that the current cosmetic brush bristle head assembling is completed by manually dividing into a plurality of working procedures can be solved.

Description

An automated assembly line for cosmetic lint. Technical Field

[0001] This invention relates to the field of cosmetic manufacturing equipment, and more particularly to an automated assembly line for cosmetic hair clips. Background Technology

[0002] In the cosmetics manufacturing industry, makeup brush bristles are a core component, and their assembly quality directly affects the user experience and performance of the product. Makeup brush bristles are typically assembled from the bristles and the brush handle, requiring multiple assembly processes. Currently, makeup brush bristle assembly is done manually in several separate steps, resulting in a large workload and low efficiency, making it difficult to meet the needs of large-scale assembly production. Summary of the Invention

[0003] The purpose of this invention is to provide an automated assembly line for cosmetic brush bristles, which addresses the problem that the current assembly of cosmetic brush bristles is done manually in multiple steps, resulting in a large workload, low efficiency, and difficulty in meeting the needs of large-scale assembly production.

[0004] To achieve the above objectives, the present invention provides an automated assembly line for cosmetic hair clips, comprising:

[0005] The machine includes a frame, a conveyor line, a burr feeding mechanism, a pre-compression mechanism, a brush rod straightening mechanism, a burr handling mechanism, a burr pressing mechanism, a heating mechanism, a connecting rod marking mechanism, a pull-out detection mechanism, and a discharge mechanism. The conveyor line is arranged along the length of the frame, and the pre-compression mechanism, the brush rod straightening mechanism, the burr handling mechanism, the burr pressing mechanism, the heating mechanism, the connecting rod marking mechanism, the pull-out detection mechanism, and the discharge mechanism are arranged in a straight line on the frame.

[0006] The conveyor line is used to convey the positioning fixture. The positioning fixture is provided with at least one positioning groove for fixing the brush rod. At least one guide groove is provided at each end of the positioning fixture. A plurality of first cylinders are provided on the frame. A first mounting plate is provided on the drive shaft of the first cylinder. A guide block is provided on the first mounting plate and the guide block is inserted into the guide groove.

[0007] The pre-compression mechanism is used to press the brush rod tightly;

[0008] The brush rod straightening mechanism is used for guiding the brush head during installation;

[0009] The burr feeding mechanism is located on one side of the frame and is used to feed the burrs into the burr positioning groove of the turntable.

[0010] The hair transfer mechanism is used to transfer the hairs in the hair positioning slot to the brush handle;

[0011] The hair-pressing mechanism is used to press the hair-like part firmly and install it into place.

[0012] The heating mechanism is used to heat and soften the brush rod;

[0013] The linkage dotting mechanism is used to press the bristles firmly onto the brush handle;

[0014] The pull-out testing mechanism is used to detect the tightness between the brush head and the brush handle;

[0015] The feeding mechanism is used to remove the assembled brush rod from the positioning fixture.

[0016] As a further description of the above technical solution:

[0017] The pre-compression mechanism includes a first mounting bracket, a second cylinder, a second mounting plate, and clamping blocks. The first mounting bracket is fixedly connected to the frame, the second cylinder is vertically mounted on the first mounting bracket, the second mounting plate is connected to the drive shaft of the second cylinder, and two clamping blocks are provided on the second mounting plate.

[0018] As a further description of the above technical solution:

[0019] The brush rod straightening mechanism includes a second mounting frame, a first slider, a mounting base, and two clamping plates. The second mounting frame is fixedly connected to the frame. The first slider is slidably connected to a first slide rail on the second mounting frame. A first clamping knob is provided at each end of the first slider. A first adjusting screw is provided on the second mounting frame and is threadedly connected to the first slider. The mounting base is connected to one side of the first slider. The two clamping plates are provided at the bottom of the mounting base, and a through hole is provided at the joint of the two clamping plates.

[0020] As a further description of the above technical solution:

[0021] The burr feeding mechanism includes a machine platform, a vibratory feeder, a spider-arm manipulator, and a turntable. The machine platform is located on one side of the frame, and a motor is installed inside the machine platform. The motor drives the turntable to rotate. The vibratory feeder and the spider-arm manipulator are both located on the machine platform. The spider-arm manipulator is used to place the burrs in the vibratory feeder into the burr positioning slot of the turntable.

[0022] As a further description of the above technical solution:

[0023] The lint handling mechanism includes a third mounting frame, a first linear module, a second linear module, and a first gripper cylinder. The third mounting frame is mounted on the machine frame. The first linear module is horizontally arranged on the third mounting frame. The second linear module is vertically mounted on a first slide on the first linear module. A cylinder connecting frame is provided on the second slide on the second linear module. Two first gripper cylinders are provided on the cylinder connecting frame. First grippers are provided on the first gripper cylinders. A first baffle is provided between the two first grippers and is connected to the first gripper cylinder.

[0024] As a further description of the above technical solution:

[0025] The hair pressing mechanism includes a fourth mounting frame, a third cylinder, a third mounting plate, and a second gripper cylinder. The fourth mounting frame is fixedly connected to the machine frame. The third cylinder is vertically mounted on the fourth mounting frame. The third mounting plate is disposed on the third cylinder. The third cylinder drives the third mounting plate to move vertically. Two second gripper cylinders are disposed on the third mounting plate, and second grippers are disposed on the second gripper cylinders.

[0026] As a further description of the above technical solution:

[0027] The heating mechanism includes a fifth mounting bracket connected to the frame. A second slide rail is provided on the fifth mounting bracket, and a second slider is provided on the second slide rail. A second clamping knob is provided on both sides of the second slider. The second slider is threadedly connected to a second adjusting screw of the fifth mounting bracket. A connecting post is provided on the second slider, and a heating seat is provided at the bottom of the connecting post. A heating channel is provided on the heating seat.

[0028] As a further description of the above technical solution:

[0029] The linkage dotting mechanism includes a sixth mounting frame, with dotting units on both sides of the sixth mounting frame. Each dotting unit includes a fourth mounting plate fixed to the sixth mounting frame. A third slide rail is provided at the bottom of the fourth mounting plate, and a third slider is slidably connected to the third slide rail. The third slider has a clamping groove, and a pin is provided in the clamping groove. A connecting rod is rotatably connected to the third slider, and the connecting rod is rotatably connected to the fourth slider. The fourth slider is slidably connected to the fourth slide rail on the fourth mounting plate. The fourth slider is connected to the drive shaft of a fourth cylinder, and the fourth cylinder is mounted on the top of the fourth mounting plate. A stop is provided above the clamping groove, and the stop is connected to a fifth cylinder, which is connected to the sixth mounting frame.

[0030] As a further description of the above technical solution:

[0031] The pull-out testing mechanism includes a seventh mounting frame, on which a third linear module is mounted. Two third gripper cylinders are mounted on a third slide of the third linear module, and each third gripper cylinder has a third gripper. An eighth mounting frame is mounted on one side of the seventh mounting frame, on which a sixth cylinder is horizontally arranged. An L-shaped connecting plate is mounted on the drive rod of the sixth cylinder, and a vertically arranged seventh cylinder is mounted on the L-shaped connecting plate. A second baffle is mounted on the drive shaft of the seventh cylinder, and the second baffle has clearance holes.

[0032] As a further description of the above technical solution:

[0033] The unloading mechanism includes a ninth mounting bracket connected to the frame, a fourth linear module is mounted on the ninth mounting bracket, an eighth cylinder is mounted on the fourth slide of the fourth linear module, a fifth mounting plate is mounted at the bottom of the eighth cylinder, two fourth gripper cylinders are mounted on the fifth mounting plate, and fourth grippers are mounted on the fourth gripper cylinders.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] 1. In this invention, the processes of assembling cosmetic brush bristles—including bristle feeding mechanism, pre-pressing mechanism, brush rod straightening mechanism, bristle handling mechanism, bristle pressing mechanism, heating mechanism, connecting rod marking mechanism, pull-out detection mechanism, and unloading mechanism—are integrated together. The bristle feeding, brush rod pressing, brush rod straightening, bristle handling, bristle pressing, heating, connecting rod marking, pull-out detection, and unloading processes are achieved through a conveyor line (belt conveyor). This reduces the number of manual laborers and lowers labor costs. It allows for rapid bristle assembly, improving both assembly efficiency and quality, significantly increasing production efficiency, and enabling continuous operation for extended periods. The production line can stably produce tens of thousands of products daily.

[0036] 2. In this invention, the lint feeding mechanism, pre-pressing mechanism, brush rod straightening mechanism, lint handling mechanism, lint pressing mechanism, heating mechanism, connecting rod dotting mechanism, pull-out detection mechanism, and unloading mechanism can be assembled and installed separately, realizing modular assembly and reducing installation difficulty. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 is a schematic diagram of an automated assembly line for cosmetic hairpieces.

[0039] Figure 2 is an enlarged view of point A in Figure 1.

[0040] Figure 3 is a top view of an automated assembly line for cosmetic hairpieces.

[0041] Figure 4 is a schematic diagram of the conveyor line in an automated assembly line for cosmetic hairpieces.

[0042] Figure 5 is a schematic diagram of the feed mechanism for cosmetic lint in an automated assembly line.

[0043] Figure 6 is an enlarged view of point B in Figure 5.

[0044] Figure 7 is a schematic diagram of the pre-pressing mechanism in an automatic assembly line for cosmetic hair.

[0045] Figure 8 is a schematic diagram of the brush rod straightening mechanism in an automatic assembly line for cosmetic brush heads.

[0046] Figure 9 is a schematic diagram of the lint handling mechanism in an automated assembly line for cosmetic lint.

[0047] Figure 10 is an enlarged view of point C in Figure 9.

[0048] Figure 11 is a schematic diagram of the tuft pressing mechanism in an automatic assembly line for cosmetic tufts.

[0049] Figure 12 is a schematic diagram of the heating mechanism in an automatic assembly line for cosmetic hairpieces.

[0050] Figure 13 is a schematic diagram of the linkage dotting mechanism in an automatic assembly line for cosmetic hair.

[0051] Figure 14 is a schematic diagram of the linkage dotting mechanism in an automatic assembly line for cosmetic hair.

[0052] Figure 15 is a schematic diagram of the third slider in an automated assembly line for cosmetic hair.

[0053] Figure 16 is a schematic diagram of the pulling and testing mechanism in an automatic assembly line for cosmetic hair.

[0054] Figure 17 is a schematic diagram of the feeding mechanism in an automatic assembly line for cosmetic hair.

[0055] Figure 18 is a reference diagram showing the completed combination of the brush handle and the bristles.

[0056] Legend:

[0057] 1. Frame; 2. Pile feeder; 21. Machine base; 22. Vibratory feeder; 23. Spider-arm manipulator; 24. Turntable; 241. Pile positioning slot; 25. Motor; 3. Pre-compression mechanism; 31. First mounting bracket; 32. Second cylinder; 33. Second mounting plate; 34. Clamping block; 4. Brush rod straightening mechanism; 41. Second mounting bracket; 42. First slider; 43. Mounting base; 44. Clamping plate; 441. Through hole; 45. First slide rail; 46. Clamping knob; 47. First adjusting screw; 5. Pile handling mechanism 51. Third mounting bracket; 52. First linear module; 53. Second linear module; 54. First gripper cylinder; 55. Cylinder connecting bracket; 56. First gripper; 57. First baffle; 6. Hair pressing mechanism; 61. Fourth mounting bracket; 62. Third cylinder; 63. Third mounting plate; 64. Second gripper cylinder; 65. Second gripper; 7. Heating mechanism; 71. Fifth mounting bracket; 72. Second slide rail; 73. Second slider; 74. Second clamping knob; 75. Second adjusting screw; 76. Connecting column; 77. Adding 771. Heating Channel; 8. Linkage Marking Mechanism; 81. Sixth Mounting Bracket; 82. Marking Unit; 821. Fourth Mounting Plate; 822. Third Slide Rail; 823. Third Slider; 8231. Grip; 824. Ejector Pin; 825. Linkage; 826. Fourth Slider; 827. Fourth Slide Rail; 828. Fourth Cylinder; 83. Stop; 84. Fifth Cylinder; 9. Pull-out Detection Mechanism; 91. Seventh Mounting Bracket; 92. Third Linear Module; 93. Third Slider; 94. Third Grip Cylinder; 95. Third Grip 96. Claw; 97. Eighth mounting bracket; 98. Sixth cylinder; 99. L-shaped connecting plate; 90. Seventh cylinder; 91. Second baffle; 92. Clearance hole; 10. Unloading mechanism; 101. Ninth mounting bracket; 102. Fourth linear module; 103. Eighth cylinder; 104. Fifth mounting plate; 105. Fourth gripper cylinder; 11. Conveyor line; 12. Positioning fixture; 121. Positioning groove; 122. Guide groove; 13. Brush rod; 131. Hair head; 14. First cylinder; 15. First mounting plate; 16. Guide block. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0060] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0061] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0062] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] Example 1:

[0064] Please refer to Figures 1-18. This invention provides an automatic assembly production line for cosmetic hair clips, comprising: a frame 1, a conveyor line 11, a hair clip feeding mechanism 2, a pre-pressing mechanism 3, a brush rod straightening mechanism 4, a hair clip handling mechanism 5, a hair clip pressing mechanism 6, a heating mechanism 7, a connecting rod dotting mechanism 8, a pull-out detection mechanism 9, and a discharge mechanism 10. The conveyor line 11 is arranged along the length of the frame 1. The pre-pressing mechanism 3, the brush rod straightening mechanism 4, the hair clip handling mechanism 5, the hair clip pressing mechanism 6, the heating mechanism 7, the connecting rod dotting mechanism 8, the pull-out detection mechanism 9, and the discharge mechanism 10 are arranged in a straight line on the frame 1.

[0065] The conveyor line 11 is used to convey the positioning fixture 12. The positioning fixture 12 is provided with at least one positioning groove 121 for fixing the brush rod 13. At least one guide groove 122 is provided at each end of the positioning fixture 12. A plurality of first cylinders 14 are provided on the frame 1. A first mounting plate 15 is provided on the drive shaft of the first cylinder 14. A guide block 151 is provided on the first mounting plate 15 and is inserted into the guide groove 122. Through the cooperation of the guide groove and the guide block, the positioning fixture can run accurately on the conveyor line, which is convenient for subsequent assembly. Multiple first cylinders are provided to correct the deviation caused by the positioning fixture during the conveying process.

[0066] The pre-compression mechanism 3 is used to press the brush rod tightly;

[0067] The brush rod straightening mechanism 4 is used for brush head guidance installation;

[0068] The feeder mechanism 2 is located on one side of the frame 1 and is used to feed the hair 131 into the hair positioning groove of the turntable.

[0069] The hair-carrying mechanism 5 is used to transfer the hairs in the hair-positioning groove to the brush handle.

[0070] The hair pressing mechanism 6 is used to press the hair tightly and install it in place;

[0071] The heating mechanism 7 is used to heat and soften the brush rod;

[0072] The linkage dotting mechanism 8 is used to press the bristles firmly onto the brush rod;

[0073] The pull-out detection mechanism 9 is used to detect the tightness between the brush head and the brush handle;

[0074] The feeding mechanism 10 is used to remove the assembled brush rod from the positioning fixture.

[0075] Referring specifically to Figure 7, the pre-pressing mechanism 3 includes a first mounting frame 31, a second cylinder 32, a second mounting plate 33, and pressing blocks 34. The first mounting frame 31 is fixedly connected to the frame 1. The second cylinder 32 is vertically mounted on the first mounting frame 31. The second mounting plate 33 is connected to the drive shaft of the second cylinder 32. Two pressing blocks 34 are provided on the second mounting plate 33. After the brush rod is placed in the positioning slot on the positioning fixture, the positioning fixture is moved by the conveyor line, moving the brush rod sequentially to each station for assembly. When it moves to the pre-pressing mechanism, the second cylinder drives the second mounting plate to move up and down, realizing the up and down movement of the pressing blocks. When the pressing blocks move down, they can press down on the top of the brush rod, making the brush rod stably connected in the positioning slot, preventing the brush rod from shaking during movement, and improving the assembly quality.

[0076] Referring specifically to Figure 8, the brush rod straightening mechanism 4 includes a second mounting frame 41, a first slider 42, a mounting base 43, and two clamping plates 44. The second mounting frame 41 is fixedly connected to the frame 1. The first slider 42 is slidably connected to a first slide rail 45 on the second mounting frame 41. A first clamping knob 46 is provided at both ends of the first slider 42. A first adjusting screw 47 is provided on the second mounting frame 41. The first adjusting screw 47 is threadedly connected to the first slider 42. The mounting base 43 is connected to one side of the first slider 42. The two clamping plates 44 are provided at the bottom of the mounting base 43. A through hole 441 is provided at the joint of the two clamping plates 44. Rotating the first adjusting screw drives the first slider to reciprocate up and down on the first slide rail, thereby adjusting the position of the mounting base. The mounting base can be fixed by the first clamping knob. The two clamping plates are movably connected to the mounting base by a combination of slider and slide rail. The distance between the two clamping plates can be adjusted to adjust the size of the through hole, which can accommodate different sizes of bristles. During operation, the head transport mechanism inserts the bristle through the through hole into the brush rod, which can prevent the brush rod from tilting and affecting the assembly quality.

[0077] Referring specifically to Figure 16, the pull-out detection mechanism 9 includes a seventh mounting frame 91, on which a third linear module 92 is mounted. Two third gripper cylinders 94 are mounted on the third slide block 93 of the third linear module 92, and third grippers 95 are mounted on the third gripper cylinders 94. An eighth mounting frame 96 is mounted on one side of the seventh mounting frame 91, and a sixth cylinder 97 is horizontally arranged on the eighth mounting frame 96. An L-shaped connecting plate 971 is mounted on the drive rod of the sixth cylinder 97, and a vertically arranged seventh cylinder 98 is mounted on the L-shaped connecting plate 971. A second baffle 99 is mounted on the drive shaft of the seventh cylinder 98, and an avoidance hole 991 is provided on the second baffle. During operation, the sixth cylinder drives the L-shaped connecting plate to move, which in turn drives the seventh cylinder to move. The seventh cylinder then drives the second baffle to move, positioning the brush rod within the clearance hole to block it and prevent it from detaching from the fixture during the pull-out force test. During testing, the third gripper cylinder drives the third gripper to grab the bristle. Then, the third linear module moves upward via the third slide and the third gripper cylinder to test the pull-out force. This can pull out bristles that are not securely fixed, preventing products with poor bristle assembly quality from entering the market.

[0078] Referring specifically to Figure 17, the unloading mechanism 10 includes a ninth mounting frame 101 connected to the frame 1. A fourth linear module 102 is mounted on the ninth mounting frame 101. An eighth cylinder 103 is mounted on the fourth slide of the fourth linear module 102. A fifth mounting plate 104 is mounted at the bottom of the eighth cylinder 103. Two fourth gripper cylinders 105 are mounted on the fifth mounting plate 104, and each fourth gripper cylinder 105 has a fourth gripper. The fourth linear module and the eighth cylinder enable the fourth gripper cylinders to move horizontally and vertically, facilitating product gripping. This allows the fourth gripper cylinders to unload products to designated positions, such as placing defective products into a defective product chute and placing good products into the production line for the next process.

[0079] The working principle is as follows: First, the brush rod is placed into the positioning fixture, which then transmits it to the subsequent assembly station via a conveyor line. Initially, the positioning fixture is aligned using a first cylinder, guide block, and guide groove. Then, a pre-pressing mechanism pre-presses the product to ensure it is in place. At this point, a spider-arm robotic arm grabs the bristles from the vibratory feeder and places them into the bristle positioning slot on the turntable. The turntable enables rapid material distribution. Next, a bristle handling mechanism grabs the bristles and places them onto the brush rod. A bristle pressing mechanism then presses the bristles firmly into place. A heating mechanism then softens the brush rod, facilitating subsequent pressing by the linkage dotting mechanism. A pull-out detection mechanism checks the tightness between the bristles and the brush rod. Finally, a feeding mechanism removes the assembled product, placing defective products into the defective product chute and good products into the production line for the next process.

[0080] Example 2:

[0081] Referring to Figures 5-6, the figures illustrate an automatic assembly production line for cosmetic hair follicles provided by Embodiment 2 of the present invention. This embodiment further improves upon the previous embodiments by implementing the following technical solutions: The hair follicle feeding mechanism 2 includes a machine base 21, a vibratory feeder 22, a spider-arm robotic arm 23, and a turntable 24. The machine base 21 is located on one side of the frame 1. A motor 25 is installed inside the machine base 21, driving the turntable 24 to rotate. Both the vibratory feeder 22 and the spider-arm robotic arm 23 are mounted on the machine base 21. The spider-arm robotic arm 23 is used to place the hair follicles from the vibratory feeder 22 into the hair follicle positioning slot 241 of the turntable 24. The hair follicle feeding mechanism is an independent working unit and can be transported separately from the frame. The vibratory feeder efficiently and stably transports the hair follicles to the picking position. The spider-arm robotic arm accurately grasps and places the hair follicles into the positioning slot. The turntable facilitates rapid material distribution, making it easier for the hair follicle handling mechanism to grasp the hair follicles.

[0082] Example 3:

[0083] Referring to Figures 9-10, the figures show an automatic assembly production line for cosmetic hairpins provided by Embodiment 3 of the present invention. This embodiment further improves upon the above embodiments by making the following technical solutions: The hairpin handling mechanism 5 includes a third mounting frame 51, a first linear module 52, a second linear module 53, and a first gripper cylinder 54. The third mounting frame 51 is mounted on the frame 1. The first linear module 52 is horizontally arranged on the third mounting frame 51. The second linear module 53 is vertically mounted on a first slide on the first linear module 52. A cylinder connecting frame 55 is provided on the second slide on the second linear module 53. Two first gripper cylinders 54 are provided on the cylinder connecting frame 55. First grippers 56 are provided on the first gripper cylinders 54. A first baffle 57 is provided between the two first grippers 56 and is connected to the first gripper cylinder 54. The first and second linear modules enable the first gripper cylinder to move horizontally and vertically, facilitating the transfer of bristles from the turntable to the brush handle. The first baffle prevents the bristles from deforming upwards during gripping, thus preventing them from falling off.

[0084] Example 4:

[0085] Referring to Figure 11, the figure shows an automatic assembly line for cosmetic brush heads provided by Embodiment 4 of the present invention. This embodiment further improves upon the above embodiments by making the following technical solutions: The brush head pressing mechanism 6 includes a fourth mounting frame 61, a third cylinder 62, a third mounting plate 63, and a second gripper cylinder 64. The fourth mounting frame 61 is fixedly connected to the frame 1. The third cylinder 62 is vertically mounted on the fourth mounting frame 61. The third mounting plate 63 is disposed on the third cylinder 62. The third cylinder 62 drives the third mounting plate 63 to move vertically. Two second gripper cylinders 64 are disposed on the third mounting plate 63, and second grippers 65 are disposed on the second gripper cylinders 64. The second gripper cylinders drive the second grippers to grasp the brush head on the brush rod, and the third cylinder drives the second gripper cylinders to move downwards, thus installing the brush head into place.

[0086] Example 5:

[0087] Referring to Figure 12, the figure shows an automatic assembly line for cosmetic brush heads provided by Embodiment 5 of the present invention. This embodiment further improves upon the previous embodiments by the following technical solution: The heating mechanism 7 includes a fifth mounting bracket 71 connected to the frame 1. A second slide rail 72 is provided on the fifth mounting bracket 71, and a second slider 73 is provided on the second slide rail 72. Second clamping knobs 74 are respectively provided on both sides of the second slider 73. The second slider 73 is threadedly connected to a second adjusting screw 75 of the fifth mounting bracket 71. A connecting post 76 is provided on the second slider 73, and a heating seat 77 is provided at the bottom of the connecting post. A heating channel 771 is provided on the heating seat 77. Rotating the second adjusting screw drives the second slider to move up and down, thereby adjusting the height of the heating seat to accommodate brush rods of different specifications. The brush rods for assembling brush heads enter the heating channel j for heating, which softens the brush rods for easier application.

[0088] Example 5:

[0089] Referring to Figures 13-15, the figures illustrate an automatic assembly production line for cosmetic hairpins provided by Embodiment 5 of the present invention. This embodiment further improves upon the above embodiments by making the following technical solutions: The linkage dotting mechanism 8 includes a sixth mounting frame 81, with dotting units 82 respectively arranged on both sides of the sixth mounting frame 81. Each dotting unit 82 includes a fourth mounting plate 821 fixed to the sixth mounting frame 81. A third slide rail 822 is provided at the bottom of the fourth mounting plate 821, and a third slider 823 is slidably connected to the third slide rail 822. A clamping groove 8231 is provided on the upper part, and a pin 834 is provided on the clamping groove 8231. A connecting rod 825 is rotatably connected to the third slider 823. The connecting rod 825 is rotatably connected to the fourth slider 826. The fourth slider 826 is slidably connected to the fourth slide rail 827 on the fourth mounting plate 821. The fourth slider 826 is connected to the drive shaft of the fourth cylinder 828. The fourth cylinder 828 is installed on the top of the fourth mounting plate 821. A stop block 83 is provided above the clamping groove 8231. The stop block 83 is connected to the fifth cylinder 84. The fifth cylinder 84 is connected to the sixth mounting bracket 81. The fourth cylinder drives the fourth slider to move the two connecting rods, which in turn move the two third sliders, thus moving the ejector pins on the two third sliders to press and fix the burrs from both sides. One push action can complete the marking of two points on the burrs, reducing costs and improving efficiency. The fifth cylinder can drive the stop block to move up and down, adjusting the position of the stop block. The stop block can restrict the upward movement of the burrs, improving the marking quality.

[0090] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automated assembly line for cosmetic hairpieces, characterized in that... The system includes: a frame, a conveyor line, a brush head feeding mechanism, a pre-pressing mechanism, a brush rod straightening mechanism, a brush head handling mechanism, a brush head pressing mechanism, a heating mechanism, a connecting rod marking mechanism, a pull-out detection mechanism, and a feeding mechanism. The conveyor line is arranged along the length of the frame. The pre-pressing mechanism, the brush rod straightening mechanism, the brush head handling mechanism, the brush head pressing mechanism, the heating mechanism, the connecting rod marking mechanism, the pull-out detection mechanism, and the feeding mechanism are arranged in a straight line on the frame. The conveyor line is used to convey a positioning fixture. The positioning fixture is provided with at least one positioning groove for fixing the brush rod. At least one guide groove is provided at each end of the positioning fixture. A plurality of first cylinders are provided on the frame. A first mounting plate is provided on the drive shaft, and a guide block is provided on the first mounting plate. The guide block is inserted into the guide groove. The pre-pressing mechanism is used to press the brush rod tightly. The brush rod straightening mechanism is used to guide the bristles during installation. The bristle feeding mechanism is located on one side of the frame and is used to feed the bristles into the bristle positioning groove of the turntable. The bristle transporting mechanism is used to transfer the bristles in the bristle positioning groove to the brush rod. The bristle pressing mechanism is used to press the bristles tightly and install them in place. The heating mechanism is used to heat and soften the brush rod. The connecting rod dotting mechanism is used to press the bristles tightly onto the brush rod. The pull-out detection mechanism is used to detect the tightness between the bristles and the brush rod. The unloading mechanism is used to remove the assembled brush rod from the positioning fixture.

2. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The pre-compression mechanism includes a first mounting frame, a second cylinder, a second mounting plate, and clamping blocks. The first mounting frame is fixedly connected to the frame, the second cylinder is vertically mounted on the first mounting frame, the second mounting plate is connected to the drive shaft of the second cylinder, and two clamping blocks are provided on the second mounting plate.

3. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The brush rod straightening mechanism includes a second mounting frame, a first slider, a mounting base, and two clamping plates. The second mounting frame is fixedly connected to the frame. The first slider is slidably connected to a first slide rail on the second mounting frame. A first clamping knob is provided at each end of the first slider. A first adjusting screw is provided on the second mounting frame and is threadedly connected to the first slider. The mounting base is connected to one side of the first slider. The two clamping plates are provided at the bottom of the mounting base, and a through hole is provided at the joint of the two clamping plates.

4. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The burr feeding mechanism includes a machine platform, a vibratory feeder, a spider-arm manipulator, and a turntable. The machine platform is located on one side of the machine frame. A motor is installed inside the machine platform, and the motor drives the turntable to rotate. The vibratory feeder and the spider-arm manipulator are both located on the machine platform. The spider-arm manipulator is used to place the burrs in the vibratory feeder into the burr positioning groove of the turntable.

5. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The lint handling mechanism includes a third mounting frame, a first linear module, a second linear module, and a first gripper cylinder. The third mounting frame is mounted on the machine frame. The first linear module is horizontally arranged on the third mounting frame. The second linear module is vertically mounted on a first slide on the first linear module. A cylinder connecting frame is provided on the second slide on the second linear module. Two first gripper cylinders are provided on the cylinder connecting frame. First grippers are provided on the first gripper cylinders. A first baffle is provided between the two first grippers and is connected to the first gripper cylinder.

6. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The hair pressing mechanism includes a fourth mounting frame, a third cylinder, a third mounting plate, and a second gripper cylinder. The fourth mounting frame is fixedly connected to the machine frame. The third cylinder is vertically mounted on the fourth mounting frame. The third mounting plate is disposed on the third cylinder. The third cylinder drives the third mounting plate to perform vertical movement. Two second gripper cylinders are disposed on the third mounting plate, and second grippers are disposed on the second gripper cylinders.

7. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The heating mechanism includes a fifth mounting bracket connected to the frame, a second slide rail on the fifth mounting bracket, a second slider on the second slide rail, a second clamping knob on each side of the second slider, the second slider being threadedly connected to a second adjusting screw of the fifth mounting bracket, a connecting post on the second slider, a heating seat at the bottom of the connecting post, and a heating channel on the heating seat.

8. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The linkage dotting mechanism includes a sixth mounting frame, with dotting units on both sides of the sixth mounting frame. Each dotting unit includes a fourth mounting plate fixed to the sixth mounting frame. A third slide rail is provided at the bottom of the fourth mounting plate, and a third slider is slidably connected to the third slide rail. The third slider has a clamping groove, and a pin is provided in the clamping groove. A connecting rod is rotatably connected to the third slider, and the connecting rod is rotatably connected to the fourth slider. The fourth slider is slidably connected to the fourth slide rail on the fourth mounting plate. The fourth slider is connected to the drive shaft of a fourth cylinder, and the fourth cylinder is mounted on the top of the fourth mounting plate. A stop is provided above the clamping groove, and the stop is connected to a fifth cylinder, which is connected to the sixth mounting frame.

9. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The pull-out testing mechanism includes a seventh mounting frame, on which a third linear module is mounted. Two third gripper cylinders are mounted on a third slide of the third linear module, and each third gripper cylinder has a third gripper. An eighth mounting frame is mounted on one side of the seventh mounting frame, on which a sixth cylinder is horizontally arranged. An L-shaped connecting plate is mounted on the drive rod of the sixth cylinder, and a vertically arranged seventh cylinder is mounted on the L-shaped connecting plate. A second baffle is mounted on the drive shaft of the seventh cylinder, and the second baffle has clearance holes.

10. The automatic assembly line for cosmetic hairpieces according to claim 1, characterized in that... The unloading mechanism includes a ninth mounting frame connected to the frame, a fourth linear module is mounted on the ninth mounting frame, an eighth cylinder is mounted on the fourth slide of the fourth linear module, a fifth mounting plate is mounted at the bottom of the eighth cylinder, two fourth gripper cylinders are mounted on the fifth mounting plate, and fourth grippers are mounted on the fourth gripper cylinders.

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