A method of manufacturing an eyelash

Abstract

The application discloses a manufacturing method of false eyelashes, and comprises the following steps: placing a strip with a plurality of false eyelash clusters pasted thereon on a strip placing station of a bottom mold, with the roots of the false eyelash clusters extending to a guide channel; inserting a middle mold into the bottom mold, so that a pressing part presses the roots and does not contact a transparent tape; applying uniform tightening force to all the roots by winding a tightening rope in an S shape around a winding block to form double fixation; peeling off the tape and arranging the false eyelash clusters, with the tightening rope kept tightened during the whole arrangement process; after re-pasting the transparent tape, a positioning pin is used to penetrate corresponding positioning holes of the bottom mold, the middle mold and a positioning top mold to realize three-module mold closing; and finally, the whole mold is sequentially heated and frozen to be shaped. The application realizes coexistence of pressing and peelability of the roots and the middle transparent tape, combines tightening pre-locking and one-pin mold closing, effectively prevents displacement of the roots during the arrangement process, and can efficiently and in batches manufacture false eyelashes with consistent bending stem curvature and comfortable wearing.

Description

Technical Field

[0001] This invention relates to the field of false eyelash manufacturing technology, and more specifically to a method for manufacturing false eyelashes. Background Technology

[0002] False eyelashes are a common accessory in beauty and makeup, and the shape of their band directly affects their fit and appearance. Currently, most false eyelashes on the market have a straight band design, which makes it difficult to conform to the natural curve of the eye, easily resulting in problems such as curling up and not fitting properly.

[0003] Most of the false eyelashes on the market are designed with straight bands, which makes it difficult to fit the natural curve of the human eye when worn. Although there are some attempts to make curved band false eyelashes in the existing technology, the following problems are common: (1) It is difficult to uniform the curvature when the eyelash band is bent by hand, and it is very easy to bounce back; (2) It is difficult to fix the root of the false eyelash cluster during the production process, and it is easy to shift during the arrangement, which affects the quality of the finished product; (3) In the existing heat setting process, the mold has uneven heat conduction or slow cooling speed, resulting in inconsistent curvature of the band after setting.

[0004] Therefore, there is an urgent need for a method to make false eyelashes that can firmly fix the base, is easy to manage, and has a good shaping effect. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a method for manufacturing false eyelashes, which solves the problems of difficulty in bending and shaping the band of existing false eyelashes, easy rebound, poor fit when worn, and unstable fixation at the root.

[0006] The first aspect of this invention is to provide a method for manufacturing false eyelashes, characterized by comprising the following steps: S1 Strip Placement Steps: Place the strip with transparent tape that has multiple false eyelash clusters attached to it on the bottom mold strip placement station of the mold making machine, so that the roots of each false eyelash cluster extend to the inlet end of multiple guide channels on the bottom mold, with the transparent tape attached to the middle area of ​​the false eyelash cluster. S2 Mold Insertion Steps: Slide and insert multiple insertion blocks of the middle mold into the multiple guide channels of the bottom mold one by one. When the limiting part at the front end of the insertion block abuts against the side wall of the guide channel groove, the insertion block stops moving forward, and the pressing part on the insertion block presses against the upper surface of the root of the false eyelash cluster. Since the transparent tape is located in the middle of the false eyelash cluster, there is no spatial overlap between the pressing part and the transparent tape in the length direction of the false eyelash cluster, and the pressing part does not contact the transparent tape. S3 Tightening and Pre-locking Steps: After the middle mold is inserted and before the transparent tape is peeled off, pass one end of the tightening rope through the rope passage on the bottom mold positioning piece, and then pass it through all the winding blocks on the bottom mold in an S-shape and out through the rope passage at the other end. Tighten both ends of the tightening rope with both hands so that the tightening rope applies a uniform tightening force to the roots of all false eyelashes. The roots of the false eyelashes are in a double fixed state of pressure and tightening. S4 Tape Peeling and Tidying Steps: Peel the transparent tape off the false eyelash cluster and tidy up the false eyelash cluster; throughout the tidying process, keep the cord taut and prevent the base of the false eyelash cluster from shifting. S5 Re-application and Fixing Steps: After tidying up, reapply new transparent tape to fix the false eyelash cluster as a whole; S6 mold assembly steps: Cover the middle mold with the positioning top mold of the mold making process, and lock the bottom mold, middle mold and positioning top mold into an integrated structure by simultaneously passing through the first positioning hole of the bottom mold, the second positioning hole of the middle mold and the third positioning hole of the positioning top mold through the positioning pin. S7 Heating and Freezing Shaping Steps: The entire mold is heated and then frozen sequentially to shape the false eyelash band.

[0007] In a first aspect of the present invention, as a preferred embodiment, the manufacturing mold includes a bottom mold, a middle mold, and a positioning top mold; The bottom mold includes a first substrate body. Two positioning blocks are symmetrically arranged on the upper surface of the first substrate body, and the two positioning blocks are respectively located at both ends of the length direction of the first substrate body. A strip placement station for placing strips is formed on one side of the upper surface of the first substrate body located on the two positioning blocks. A guide space is defined between the two positioning blocks. Multiple parallel partitions are arranged in the guide space to form multiple guide channels. The bottom surface of each guide channel is recessed downward to form a groove. The end of each guide channel away from the strip placement station forms an inlet end, and the end adjacent to the strip placement station forms an outlet end. The intermediate mold includes a second base plate body, the length of which matches the length of the guide space; the second base plate body is provided with a plurality of plug-in blocks corresponding one-to-one with the plurality of guide channels, and the front end of each plug-in block forms a limiting part and a pressing part located above the limiting part; The positioning top mold is configured to removably cover the middle mold.

[0008] In a first aspect of the present invention, as a preferred embodiment, in step S1, the strip placement station is further provided with a scale groove, the scale groove including a horizontal scale groove and a plurality of vertical scale grooves, the plurality of vertical scale grooves being aligned one by one with the center positions of the plurality of guide channels, the horizontal scale groove being configured to align the strip edges of the transparent tape, and the vertical scale groove being configured to indicate that the root of the false eyelash cluster extends to the inlet end of the guide channel.

[0009] In a first aspect of the present invention, as a preferred embodiment, in step S2, the lower surface of the pressing part is a plane with a width smaller than the width of the guide channel, and the lower surface of the pressing part is configured to fully contact the upper surface of the root of the false eyelash cluster in the pressed state, while maintaining a gap with the transparent tape; the limiting part is a boss or stop formed at the front end of the insertion block, and the boss or stop is configured to abut against the side wall of the groove to limit the insertion depth of the insertion block.

[0010] In a first aspect of the invention, as a preferred embodiment, in step S3, the mold making further includes a tightening mechanism. The tightening mechanism includes a winding block disposed on the upper surface of the first substrate body adjacent to the exit end of each of the guide channels, a positioning member disposed on one side of the two positioning blocks, and a tightening rope. The positioning member has a rope passage for the tightening rope to pass through. One end of the tightening rope passes through the rope passage at one end, and then passes around all the winding blocks in an S-shaped route before exiting from the other rope passage. The two ends of the tightening rope are tightened by both hands, and the tightening rope is configured to tighten the root of the false eyelash cluster. The rope passage includes a plurality of sub-channels arranged in a fan shape. The plurality of sub-channels are configured to allow the tightening rope to select different insertion angles, thereby adjusting the tightening force of the tightening rope on the root of the false eyelash cluster.

[0011] In a first aspect of the invention, as a preferred embodiment, in step S3, the winding block is positioned on the upper surface of the first substrate body near the outlet end of each of the guide channels, so that when the tightening rope is tightened, it can concentrate its force on the side of the false eyelash cluster root near the strip placement station; the positioning member is positioned on one side of the two positioning blocks and located on both sides of the strip placement station; the height of the rope passage is higher than the bottom surface of the guide channel to avoid the tightening rope contacting the transparent tape when tightening; the tightening rope passes around all the winding blocks in an S-shaped route, so that when both ends of the tightening rope are tightened by both hands, the tightening rope applies a uniform and consistent tightening force to the false eyelash cluster root in each of the guide channels.

[0012] In a first aspect of the present invention, as a preferred embodiment, in step S1, the first substrate body is provided with a first positioning hole, and the second substrate body is also provided with a second positioning hole. When the middle mold is inserted into the bottom mold, the bottom mold and the middle mold are precisely aligned by the positioning pin passing through the first positioning hole and the second positioning hole.

[0013] In a first aspect of the present invention, as a preferred embodiment, in step S6, the positioning top mold includes a pressure plate, the pressure plate is provided with a third positioning hole, and a positioning pin is simultaneously inserted into the first positioning hole, the second positioning hole and the third positioning hole to realize the mold closing and positioning of the bottom mold, the middle mold and the positioning top mold.

[0014] In a first aspect of the present invention, as a preferred embodiment, in step S7, the heating process has a set temperature of 100~110°C and a heating time of 20~25 seconds; the freezing process has a cooling temperature of -10~-20°C and a cooling time of 25~35 seconds; the heating process is performed first, and after heating is completed, the mold is flattened by a pressure plate, and then the freezing process is performed immediately; the freezing process uses a wet towel to assist in cooling, and the wet towel is positioned between the mold and the cooling plate.

[0015] In a first aspect of the present invention, as a preferred embodiment, in step S7, the constant temperature of the heating process is 105°C; the cooling temperature of the freezing process is -15°C, and the cooling time is 30 seconds.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention establishes a complete method for manufacturing curved false eyelash bands. Through a dual fixing mechanism—combining a pressing part that presses against the root without contacting the tape and a pre-locking tightening cord—a rigid-flexible composite constraint is formed at the root of the false eyelash cluster before finishing. This fundamentally solves the problems of easy root displacement and disordered arrangement in traditional handmade production. Simultaneously, by limiting the tightening cord to remain taut throughout the finishing process and ensuring the sequence of steps involving a pin penetrating three holes for mold closing, the spatial posture of the false eyelash cluster remains unchanged throughout the entire process from finishing and fixing to heat setting, achieving high precision and consistency in the curved band curvature.

[0017] In this invention, the guide channel of the bottom mold and the middle mold insertion block form a sliding fit pair. False eyelash clusters are adhered to the strip using transparent tape, with the tape adhering to the central area of ​​the cluster and the root being the free end without tape. After the strip is placed in the strip placement station, the roots of each false eyelash cluster extend to the exit end of the guide channel. The middle mold insertion block is pushed in along the guide channel. When the limiting part physically abuts against the side wall of the groove, the insertion block stops advancing. At this point, the pressing part is positioned directly above the root and presses against it. Because the transparent tape is located in the center of the false eyelash cluster, and the pressing area of ​​the pressing part is at the root, there is no spatial overlap between the two along the length of the false eyelash cluster. The pressing part naturally avoids the transparent tape in its physical position. This design utilizes the positional difference along the length of the false eyelash cluster itself to achieve both root fixation and tape peelability without the need for additional complex gap control structures. This facilitates the arrangement of the false eyelash clusters and solves the problem of unstable root fixation in traditional methods.

[0018] This invention utilizes an S-shaped tightening cord that winds around a winding block, allowing for uniform tightening force at the base of all false eyelash clusters by hand, preventing root displacement during the process. This is particularly suitable for mass production. The cord passage employs multiple fan-shaped sub-channels, allowing the operator to select different angles based on the density and material of the false eyelash clusters, thus precisely adjusting the tightening force and achieving adaptive fixing of false eyelashes of different sizes. The strip placement station features graduated grooves, including horizontal grooves and multiple vertical grooves aligned with the center of the guide channel. The operator only needs to place the transparent tape edge... Aligning with the horizontal scale groove and the vertical scale groove at the base of the false eyelash cluster allows for rapid positioning, eliminating errors caused by manual visual alignment. The bottom mold, middle mold, and positioning top mold of this invention are all made of aluminum or aluminum alloy with low thermal conductivity. Combined with subsequent heating and freezing processes, this allows the false eyelash band to soften and solidify quickly, ensuring a stable and long-lasting curvature and preventing the false eyelashes from sticking to the mold. This invention achieves three-module mold positioning by inserting positioning pins into the first, second, and third positioning holes, ensuring the relative positional accuracy of the mold during the heating and freezing processes, avoiding poor shaping caused by mold misalignment, and enabling rapid assembly and disassembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mold used in the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the bottom mold and the middle mold in the closed state of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the bottom mold and the middle mold in the open state of the present invention.

[0022] Figure 4This is a schematic diagram of the structure of the intermediate mold of the present invention.

[0023] Figure 5 This is a schematic diagram of the bottom mold of the present invention.

[0024] Figure 6 This is a schematic diagram of the bottom mold with tightening rope of the present invention.

[0025] Figure 7 This is a schematic diagram of the bottom mold with sub-channels according to the present invention.

[0026] Figure 8 This is a photograph of the actual mold used to manufacture the present invention.

[0027] Figure 9 This is a photograph of the mold being manufactured in the closed state of the present invention.

[0028] Figure 10 This is a photograph of the actual product of the present invention, which is flattened using a pressure plate.

[0029] Figure 11 This is a photograph of the actual heating process of the present invention.

[0030] Figure 12 This is a photograph of the actual freezing process of the present invention.

[0031] Figure 13 This is a photograph of the frozen strips of the present invention.

[0032] In the picture: 10. Bottom mold; 11. First substrate body; 111. Inlet end; 112. Outlet end; 12. First positioning hole; 13. Positioning block; 14. Strip placement station; 15. Scale groove; 151. Horizontal scale groove; 152. Vertical scale groove; 16. Guide space; 17. Divider plate; 18. Guide channel; 19. Groove; 20. Middle mold; 21. Second substrate body; 22. Second positioning hole; 23. Insertion block; 24. Limiting part; 25. Pressing part; 30. Positioning top mold; 31. Pressure plate; 32. Third positioning hole; 40. Tightening mechanism; 41. Winding block; 42. Positioning component; 43. Rope passage; 431. Sub-channel; 44. Tightening rope. Detailed Implementation

[0033] The invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a connection, a link between two elements through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0037] Example 1 Please refer to Figure 1-13 As shown, this embodiment provides a method for manufacturing false eyelashes, including the following steps: S1 Strip Placement Steps: Place the strip with transparent tape that has multiple false eyelash clusters attached to it on the bottom mold strip placement station of the mold making machine, so that the roots of each false eyelash cluster extend to the inlet end of multiple guide channels on the bottom mold, with the transparent tape attached to the middle area of ​​the false eyelash cluster. S2 Mold Insertion Steps: Slide and insert multiple insertion blocks of the middle mold into the multiple guide channels of the bottom mold one by one. When the limiting part at the front end of the insertion block abuts against the side wall of the guide channel groove, the insertion block stops moving forward, and the pressing part on the insertion block presses against the upper surface of the root of the false eyelash cluster. Since the transparent tape is located in the middle of the false eyelash cluster, there is no spatial overlap between the pressing part and the transparent tape in the length direction of the false eyelash cluster, and the pressing part does not contact the transparent tape. S3 Tightening and Pre-locking Steps: After the middle mold is inserted and before the transparent tape is peeled off, pass one end of the tightening rope through the rope passage on the bottom mold positioning piece, and then pass it through all the winding blocks on the bottom mold in an S-shape and out through the rope passage at the other end. Tighten both ends of the tightening rope with both hands so that the tightening rope applies a uniform tightening force to the roots of all false eyelashes. The roots of the false eyelashes are in a double fixed state of pressure and tightening. S4 Tape Peeling and Tidying Steps: Peel the transparent tape off the false eyelash cluster and tidy up the false eyelash cluster; throughout the tidying process, keep the cord taut and prevent the base of the false eyelash cluster from shifting. S5 Re-application and Fixing Steps: After tidying up, reapply new transparent tape to fix the false eyelash cluster as a whole; S6 mold assembly steps: Cover the middle mold with the positioning top mold of the mold making process, and lock the bottom mold, middle mold and positioning top mold into an integrated structure by simultaneously passing through the first positioning hole of the bottom mold, the second positioning hole of the middle mold and the third positioning hole of the positioning top mold through the positioning pin. S7 Heating and Freezing Shaping Steps: The entire mold is heated and then frozen sequentially to shape the false eyelash band.

[0038] Based on the above methods, this invention constructs a complete method for manufacturing curved false eyelash bands. Through a dual fixing mechanism—combining the pressure part to press against the root without contacting the tape and pre-locking with the tightening rope—a rigid-flexible composite constraint is formed at the root of the false eyelash cluster before finishing, fundamentally solving the problems of easy root displacement and disordered arrangement in traditional handmade production. Simultaneously, by limiting the tightening rope to remain taut throughout the finishing process and the sequence of steps involving a pin penetrating three holes for mold closing, the spatial posture of the false eyelash cluster remains unchanged throughout the entire process from finishing and fixing to heat setting, achieving high precision and consistency in the curvature of the band.

[0039] In a preferred embodiment of the present invention, the mold making process includes: a bottom mold 10, a middle mold 20, and a positioning top mold 30; The bottom mold 10 includes a first substrate body 11. Two positioning blocks 13 are symmetrically arranged on the upper surface of the first substrate body 11, and the two positioning blocks 13 are located at both ends of the length direction of the first substrate body 11. A strip placement station 14 for placing strips is formed on one side of the upper surface of the first substrate body 11, located on the two positioning blocks 13. A guide space 16 is defined between the two positioning blocks 13. Multiple parallel partition plates 17 are arranged in the guide space 16 to form multiple guide channels 18. The bottom surface of each guide channel 18 is recessed downward to form a groove 19. The end of each guide channel 18 away from the strip placement station 14 forms an inlet end 111, and the end adjacent to the strip placement station 14 forms an outlet end 112. The intermediate mold 20 includes a second substrate body 21, the length of which matches the length of the guide space 16; the second substrate body 21 is provided with a plurality of plug-in blocks 23 corresponding to a plurality of guide channels 18, and the front end of each plug-in block 23 forms a limiting part 24 and a pressing part 25 located above the limiting part 24. The positioning top mold 30 is configured to removably cover the middle mold 20; In this configuration, multiple plug-in blocks 23 are slidably inserted into multiple guide channels 18 in a one-to-one correspondence. When the limiting part 24 of the plug-in block 23 contacts the side wall of the groove 19 at one end of the strip placement station 14, the pressing part 25 is configured to press against the root of the false eyelash cluster at the corresponding position, and the pressing part 25 does not contact the transparent tape, thereby allowing the transparent tape to be peeled off to arrange the false eyelash cluster.

[0040] The strip consists of transparent tape and multiple clusters of false eyelashes evenly adhered to the underside of the transparent tape. The transparent tape is located in the center of the false eyelash clusters.

[0041] Based on the above structure, the guide channel 18 of the bottom mold 10 and the insertion block 23 of the middle mold 20 form a sliding fit pair. The false eyelash clusters are attached to the strip with transparent tape, which is pasted in the middle area of ​​the false eyelash cluster, with the root being the free end without tape. After the strip is placed in the strip placement station 14, the root of each false eyelash cluster extends to the outlet end 112 of the guide channel 18. The insertion block 23 of the middle mold 20 is pushed in along the guide channel 18. When the limiting part 24 physically abuts against the side wall of the groove 19, the insertion block 23 stops advancing. At this time, the pressing part 25 is exactly above the root and presses against it. Since the transparent tape is located in the middle of the false eyelash cluster, and the pressing area of ​​the pressing part 25 is at the root, there is no spatial overlap between the two in the length direction of the false eyelash cluster. The pressing part 25 naturally avoids the transparent tape in physical position. This design utilizes the positional difference along the length of the false eyelash cluster itself to achieve both root fixation and tape peelability without the need for additional complex gap control structures. This facilitates the arrangement of the false eyelash cluster and solves the problem of unstable root fixation in traditional methods.

[0042] In a preferred embodiment of the present invention, a tightening mechanism 40 is also included. The tightening mechanism 40 includes a winding block 41 disposed on the upper surface of the first substrate body 11 adjacent to the outlet end 112 of each guide channel 18, a positioning member 42 disposed on one side of the two positioning blocks 13, and a tightening rope 44. A rope passage 43 is formed on the positioning member 42 for the tightening rope 44 to pass through. One end of the tightening cord 44 passes through the cord passage 43 at one end, and then passes around all the cord blocks 41 in an S-shaped route before exiting through another cord passage 43. By tightening both ends of the tightening cord 44 with both hands, the tightening cord 44 is configured to tighten the base of the false eyelash cluster.

[0043] Based on the above structure, the tightening cord 44 of this invention enters from one end through the cord passage 43, passes through all the winding blocks 41 in an S-shape, and then exits from the other end. The transparent tape of the false eyelash cluster is located in the middle, while the tightening cord 44 acts on the root area of ​​the false eyelash cluster when tightened. Since the two are located at different positions in the length direction, the cord naturally does not come into contact with the transparent tape. When both hands tighten the cord ends, the cord tension is converted into a vertical pressing force on the root at the bend of each winding block 41. The S-shaped path of a single cord achieves simultaneous locking of multiple rows of roots, replacing the tedious process of fixing each row individually with a single operation.

[0044] In a preferred embodiment of the present invention, the winding block 41 is disposed on the upper surface of the first substrate body 11 near the outlet end 112 of each guide channel 18, so that when the tightening rope 44 is tightened, it can concentrate its action on the side of the false eyelash cluster root near the strip placement station 14.

[0045] Based on the above structure, the winding block 41 of the present invention is positioned near the outlet end 112 of the strip placement station 14, corresponding to the side of the false eyelash cluster root closest to the transparent tape. When the tightening cord 44 is tightened here, the force is applied directly to the end of the root. According to the principles of mechanics, applying constraint at the end of the cantilever structure can effectively suppress the rotation and displacement of the entire root. This arrangement concentrates the tightening force on the area of ​​the root that most needs to be locked, and since the point of application is still within the root area, away from the transparent tape in the middle, it further ensures that the integrity of the tape is not interfered with during the tightening process.

[0046] In a preferred embodiment of the invention, the tightening cord 44 passes through all the winding blocks 41 in an S-shaped path, such that when both ends of the tightening cord 44 are tightened by both hands, the tightening cord 44 applies a uniform and consistent tightening force to the base of the false eyelash cluster in each guide channel 18.

[0047] Based on the above structure, the tightening rope 44 of this invention is arranged in a continuous S-shape, sequentially wrapping around all the winding blocks 41. As a flexible continuum, the rope exhibits essentially equal tension at all points when tightened by both hands. According to the principles of rope mechanics, the direction of the tension changes as it wraps around each winding block 41, but its magnitude remains essentially constant. Therefore, the clamping force at each winding block 41 originates from the same tension system and is highly consistent in magnitude. This structure mechanically ensures that the locking force at the root of each row is uniform and equal. Furthermore, since all points of application are located at the root, away from the central transparent tape, interference with the tape is completely avoided while ensuring uniform tightening.

[0048] In a preferred embodiment of the present invention, the lower surface of the pressing part 25 is a plane with a width smaller than that of the guide channel 18, and the lower surface of the pressing part 25 is configured to fully contact the upper surface of the root of the false eyelash cluster in the pressed state, while maintaining a gap with the transparent tape.

[0049] Based on the above structure, the lower surface of the pressing part 25 of the present invention is flat and its width is smaller than that of the guide channel 18. The flat design increases the contact area with the root to improve static friction resistance and prevent slippage; the width limitation provides lateral clearance for the insertion block 23 to slide within the channel, avoiding jamming. Since the transparent tape is located in the middle of the false eyelash cluster, there is no transparent tape in the projection area directly below the pressing part 25 when it presses against the root. Therefore, the pressing part 25 will not come into contact with the transparent tape while pressing against the root, achieving the dual effect of stable pressing against the root and safe isolation of the tape.

[0050] In a preferred embodiment of the invention, the limiting portion 24 is a boss or stop formed at the front end of the plug block 23, and the boss or stop is configured to abut against the sidewall of the groove 19 to limit the insertion depth of the plug block 23.

[0051] Based on the above structure, the limiting part 24 of the present invention is a boss or stop structure formed at the front end of the plug-in block 23. When the plug-in block 23 is pushed in, the boss physically impacts the side wall of the groove 19, and the reaction force prevents the plug-in block 23 from moving forward, thereby rigidly limiting the insertion depth. This structure converts the insertion depth into a definite physical position, and the operator can confirm that the pressing is in place by pushing until they feel the impact. At this time, the pressing part 25 is exactly pressed at the root position, and the positional difference between the root and the middle transparent tape ensures the accuracy and safety of the pressing action without the need for visual adjustment.

[0052] In a preferred embodiment of the present invention, the first substrate body 11 is provided with a first positioning hole 12, and the second substrate body 21 is also provided with a second positioning hole 22. When the middle mold 20 is inserted into the bottom mold 10, the bottom mold 10 and the middle mold 20 are accurately aligned by the positioning pin passing through the first positioning hole 12 and the second positioning hole 22.

[0053] Based on the above structure, the first positioning hole 12 on the first substrate body 11 and the second positioning hole 22 on the second substrate body 21 constitute a hole-axis mating positioning system. After the plug-in block 23 is inserted into the guide channel 18, the two holes automatically align, and the bottom mold 10 and the middle mold 20 can be locked by inserting the positioning pin. This structure eliminates the relative degrees of freedom between the two modules and prevents the middle mold 20 from being misaligned in subsequent operations. Since the pressing part 25 on the root depends on the precise insertion depth of the plug-in block 23, the locking of the positioning pin ensures that the pressing part 25 is always aligned with the root position, further ensuring that the pressing action does not touch the middle transparent tape.

[0054] In a preferred embodiment of the present invention, the positioning top mold 30 includes a pressure plate 31, on which a third positioning hole 32 is provided. A positioning pin is simultaneously inserted into the first positioning hole 12, the second positioning hole 22 and the third positioning hole 32 to realize the mold closing and positioning of the bottom mold 10, the middle mold 20 and the positioning top mold 30.

[0055] Based on the above structure, the third positioning hole 32 on the positioning top mold 30 of the present invention, together with the positioning holes of the bottom mold 10 and the middle mold 20, forms a three-hole coaxial alignment system. When the three modules are stacked, the central axes of the three holes coincide, and a single positioning pin passes through the three holes to lock the three modules into an integrated rigid body. This design eliminates all relative motion degrees of freedom between modules, maintaining structural stability during the heating and freezing process. Since the pressing of the pressing part 25 to the root and the locking of the tightening mechanism 40 to the root both depend on the precise relative position of the three modules, the integrated locking ensures that all forces are accurately applied to the root, away from the central transparent tape area.

[0056] In a preferred embodiment of the present invention, a scale groove 15 is also provided on the strip placement station 14. The scale groove 15 includes a horizontal scale groove 151 and a plurality of vertical scale grooves 152. The plurality of vertical scale grooves 152 are aligned with the center positions of the plurality of guide channels 18. The horizontal scale groove 151 is configured to align the strip edges of the transparent tape, and the vertical scale grooves 152 are configured to indicate the root of the false eyelash cluster extending to the inlet end 111 of the guide channel 18.

[0057] Based on the above structure, the strip placement station 14 of the present invention is provided with a horizontal scale groove 151 and a plurality of vertical scale grooves 152 aligned one-to-one with the center of the guide channel 18. The horizontal scale groove 151 is used for the horizontal alignment of the edges of the transparent tape strips, and the vertical scale grooves 152 indicate the position where the roots of the false eyelash clusters extend to the inlet end 111 of the guide channel 18. This bidirectional visual guidance structure allows the operator to quickly position the strips, ensuring that the roots of each false eyelash cluster accurately enter the guide channel 18, while the central transparent tape remains in the correct position of the strip placement station 14, without interfering with the pressing area within the guide channel 18.

[0058] In a preferred embodiment of the invention, the bottom mold 10, the middle mold 20, and the positioning top mold 30 are all made of aluminum or aluminum alloy. During the heating process, heat is rapidly conducted through the aluminum substrate to the false eyelash band, softening it; during the freezing process, heat is rapidly dissipated, hardening it. Since the pressing part 25 and the tightening mechanism 40 both act on the root of the false eyelash cluster, while the transparent tape is located in the middle, the root is precisely temperature-controlled by the mold during the heating and freezing process, while the middle tape area is not directly affected. The smooth surface of the aluminum alloy further ensures smooth demolding of the false eyelash band after shaping.

[0059] The working principle of the mold making invention: Step 1: Strip Positioning. Place the strip of transparent tape with multiple false eyelash clusters attached onto the strip placement station of the base mold. The base of the false eyelash cluster is the free end without tape, extending to the inlet of the guide channel; the transparent tape is located in the middle area of ​​the false eyelash cluster. The graduated grooves on the strip placement station provide the operator with a visual reference. By aligning the edge of the transparent tape with the horizontal graduated groove and the base of the false eyelash cluster with the vertical graduated groove, the strip can be quickly and accurately positioned on the mold.

[0060] Step 2: Insertion and Initial Fixation of the Middle Mold and Root. The multiple insertion blocks of the middle mold are pushed in one by one along the guide channels of the bottom mold. When the limiting part at the front end of the insertion block physically abuts against the side wall of the groove, the insertion block stops advancing, and the insertion depth is rigidly limited. At this point, the pressing part on the insertion block presses precisely against the upper surface of the root of the false eyelash cluster. Since the transparent tape is located in the middle of the false eyelash cluster, the pressing area of ​​the pressing part and the transparent tape do not overlap spatially in the length direction, and the pressing part naturally avoids the transparent tape. This structure physically achieves both a firm hold at the root and a peelable transparent tape in the middle.

[0061] Step 3: Pre-locking the tightening mechanism. After the middle mold is inserted and the base of the false eyelashes is pressed together, and before peeling off the transparent tape and arranging the false eyelash clusters, the operator passes one end of the tightening rope through the rope passage on the positioning piece, and then passes it around all the winding blocks in an S-shape before exiting from the other end. Both ends of the tightening rope are tightened simultaneously with both hands. The rope tension at each winding block is converted into a vertical pressing force on the base of the false eyelash clusters, ensuring that the base of all rows of false eyelash clusters is subjected to a uniform and consistent tightening force. At this point, the base of the false eyelash clusters is in a double-fixed state of being pressed together by the plane of the pressing part and locked by the tightening rope, preparing for displacement prevention in subsequent arranging processes.

[0062] Step 4: Tape Removal and False Eyelash Arrangement. Since the pressure point is not in contact with the transparent tape, and the base is further secured by the tightening cord, the operator can completely peel the transparent tape off the false eyelash cluster, exposing the base and middle strands of the false eyelashes. Throughout the peeling and subsequent arrangement processes, including curling, combing, and arranging, the tightening cord remains taut. The base of the false eyelash clusters is doubly secured, preventing any displacement and ensuring the accuracy and consistency of the arrangement of each cluster after arrangement.

[0063] Step 5: Re-attach and secure. After tidying up and confirming that the false eyelash clusters are arranged correctly, loosen the tightening cord or keep them in place, and re-attach new transparent tape to secure the false eyelash clusters as a whole, preparing for subsequent transfer and shaping processes.

[0064] Step 6: Three-Module Mold Closure and Positioning. Place the top positioning mold over the middle mold, ensuring the first positioning hole of the bottom mold, the second positioning hole of the middle mold, and the third positioning hole of the top positioning mold are coaxially aligned. Insert a positioning pin through all three holes simultaneously, locking the bottom mold, middle mold, and top positioning mold into a rigid body structure with a completely defined spatial position. This mold closure system eliminates all relative degrees of freedom between the three modules, ensuring that the positions of the pressing parts and tightening mechanisms do not shift in subsequent processes.

[0065] Step 7: Heating and Freezing for Shaping. The entire mold undergoes heating and freezing processes sequentially. The bottom mold, middle mold, and positioning top mold are all made of aluminum or aluminum alloy with high thermal conductivity. During heating, heat is rapidly conducted through the aluminum substrate to the false eyelash band, softening it. During freezing, heat is quickly dissipated, hardening it. Because the root has been precisely fixed and arranged in the early stages, the false eyelash band is bent and shaped under precise temperature control. After shaping, thanks to the smooth surface treatment of the aluminum alloy, the false eyelash band can be easily demolded without sticking together.

[0066] In step S7, the heating process has a set temperature of 100~110℃ and a heating time of 20~25 seconds; the freezing process has a cooling temperature of -10~-20℃ and a cooling time of 25~35 seconds; the heating process is performed first, and after heating is completed, the mold is flattened by a pressure plate, and then the freezing process is performed immediately; the freezing process uses a wet towel to assist in cooling, and the wet towel is positioned between the mold and the cooling plate.

[0067] In step S7, the heating process is maintained at a constant temperature of 105°C; the freezing process is cooled at -15°C for 30 seconds. Under these conditions, the softening and hardening of the false eyelash band achieves an optimal balance, resulting in a natural and lasting curve. This also avoids damage to the eyelashes due to excessively high temperatures or energy waste due to excessively low temperatures, further improving product yield and quality.

[0068] Example 2 Please refer to Figure 7-8 As shown, this embodiment is a variation of the first embodiment, the main difference being that: the cord passage includes multiple sub-channels 431 arranged in a fan shape, and the multiple sub-channels 431 are configured to allow the tightening cord to select different insertion angles, thereby adjusting the tightening force of the tightening cord on the root of the false eyelash cluster.

[0069] In this embodiment, the cord passage consists of multiple sub-channels arranged in a fan shape, each exiting at a different angle. When the cord passes through sub-channels at different angles, the initial direction of the cord entering the winding block system changes, thereby altering the directional component of the force applied to the root at each winding block. Since the transparent tape is located in the center of the false eyelash cluster, adjusting the direction of force only affects the tightness at the root and does not affect the central tape area. The operator can adjust the tightening force without changing the pulling force of both hands by selecting the angle of the sub-channel, achieving adaptive fixation for false eyelash clusters of different materials and densities.

[0070] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.

[0071] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A method for manufacturing false eyelashes, characterized in that, Includes the following steps: S1. Strip placement steps: Place the strip with multiple clusters of false eyelashes attached to it on the bottom mold strip placement station of the mold making machine, so that the roots of each cluster of false eyelashes extend to the inlet end of multiple guide channels on the bottom mold, with the transparent tape attached to the middle area of ​​the cluster of false eyelashes. S2, Middle Mold Insertion Step: Slide and insert the multiple insertion blocks of the middle mold into the multiple guide channels of the bottom mold one by one. When the limiting part at the front end of the insertion block abuts against the side wall of the guide channel groove, the insertion block stops moving forward, and the pressing part on the insertion block presses against the upper surface of the root of the false eyelash cluster. Since the transparent tape is located in the middle of the false eyelash cluster, there is no spatial overlap between the pressing part and the transparent tape in the length direction of the false eyelash cluster, and the pressing part does not contact the transparent tape. S3, Tightening and Pre-locking Step: After the middle mold is inserted and before the transparent tape is peeled off, pass one end of the tightening rope through the rope passage on the bottom mold positioning piece, and then pass it through all the winding blocks on the bottom mold in an S-shape and then out through the rope passage at the other end. Tighten both ends of the tightening rope with both hands so that the tightening rope applies a uniform tightening force to the roots of all false eyelashes. The roots of the false eyelashes are in a double fixed state of pressure and tightening. S4. Tape Removal and Tidying Steps: Remove the transparent tape from the false eyelash cluster and tidy up the false eyelash cluster; throughout the tidying process, keep the cord taut and prevent the base of the false eyelash cluster from shifting. S5. Re-attach and fix the false eyelashes: After tidying up, re-attach new transparent tape to fix the false eyelashes as a whole. S6. Mold closing steps: Cover the middle mold with the positioning top mold of the mold making process, and lock the bottom mold, middle mold and positioning top mold into an integrated structure by simultaneously passing through the first positioning hole of the bottom mold, the second positioning hole of the middle mold and the third positioning hole of the positioning top mold through the positioning pin. S7. Heating and Freezing Shaping Steps: The entire mold is heated and then frozen in sequence to shape the false eyelash band.

2. The method for manufacturing false eyelashes as described in claim 1, characterized in that, The mold making process includes a bottom mold, a middle mold, and a positioning top mold; The bottom mold includes a first substrate body. Two positioning blocks are symmetrically arranged on the upper surface of the first substrate body, and the two positioning blocks are respectively located at both ends of the length direction of the first substrate body. A strip placement station for placing strips is formed on one side of the upper surface of the first substrate body located on the two positioning blocks. A guide space is defined between the two positioning blocks. Multiple parallel partitions are arranged in the guide space to form multiple guide channels. The bottom surface of each guide channel is recessed downward to form a groove. The end of each guide channel away from the strip placement station forms an inlet end, and the end adjacent to the strip placement station forms an outlet end. The intermediate mold includes a second base plate body, the length of which matches the length of the guide space; the second base plate body is provided with a plurality of plug-in blocks corresponding one-to-one with the plurality of guide channels, and the front end of each plug-in block forms a limiting part and a pressing part located above the limiting part; The positioning top mold is configured to removably cover the middle mold.

3. The method for manufacturing false eyelashes as described in claim 2, characterized in that, In step S1, the strip placement station is also provided with a scale groove, which includes a horizontal scale groove and multiple vertical scale grooves. The multiple vertical scale grooves are aligned with the center positions of the multiple guide channels. The horizontal scale groove is configured to align the strip edges of the transparent tape. The vertical scale groove is configured to indicate that the root of the false eyelash cluster extends to the inlet end of the guide channel.

4. The method for manufacturing false eyelashes as described in claim 2, characterized in that, In step S2, the lower surface of the pressing part is a plane with a width smaller than the width of the guide channel, and the lower surface of the pressing part is configured to fully contact the upper surface of the root of the false eyelash cluster in the pressed state, while maintaining a gap with the transparent tape; the limiting part is a boss or stop formed at the front end of the insertion block, and the boss or stop is configured to abut against the side wall of the groove to limit the insertion depth of the insertion block.

5. The method for manufacturing false eyelashes as described in claim 2, characterized in that, In step S3, the mold making process further includes a tightening mechanism. The tightening mechanism includes a winding block disposed on the upper surface of the first substrate body near the exit end of each of the guide channels, a positioning member disposed on one side of the two positioning blocks, and a tightening rope. The positioning member has a rope passage for the tightening rope to pass through. One end of the tightening rope passes through the rope passage at one end, and then passes around all the winding blocks in an S-shaped path before exiting from the other rope passage. By tightening both ends of the tightening rope with both hands, the tightening rope is configured to tighten the base of the false eyelash cluster. The rope passage includes multiple sub-channels arranged in a fan shape. The multiple sub-channels are configured to allow the tightening rope to select different insertion angles, thereby adjusting the tightening force of the tightening rope on the base of the false eyelash cluster.

6. The method for manufacturing false eyelashes as described in claim 5, characterized in that, In step S3, the winding block is positioned on the upper surface of the first substrate body near the outlet end of each guide channel, so that when the tightening rope is tightened, it can concentrate the force on the side of the false eyelash cluster root near the strip placement station; the positioning member is positioned on one side of the two positioning blocks and located on both sides of the strip placement station; the height of the rope passage is higher than the bottom surface of the guide channel to avoid the tightening rope contacting the transparent tape when tightening; the tightening rope passes around all the winding blocks in an S-shaped route, so that when both ends of the tightening rope are tightened by both hands, the tightening rope applies a uniform and consistent tightening force to the root of the false eyelash cluster in each guide channel.

7. The method for manufacturing false eyelashes as described in claim 2, characterized in that, In step S1, the first substrate body is provided with a first positioning hole, and the second substrate body is also provided with a second positioning hole. When the middle mold is inserted into the bottom mold, the bottom mold and the middle mold are accurately aligned by the positioning pin passing through the first positioning hole and the second positioning hole.

8. The method for manufacturing false eyelashes as described in claim 7, characterized in that, In step S6, the positioning top mold includes a pressure plate, and the pressure plate is provided with a third positioning hole. A positioning pin is simultaneously inserted into the first positioning hole, the second positioning hole, and the third positioning hole to realize the mold closing and positioning of the bottom mold, the middle mold, and the positioning top mold.

9. The method for manufacturing false eyelashes as described in claim 1, characterized in that, In step S7, the heating process has a set temperature of 100~110℃ and a heating time of 20~25 seconds; the freezing process has a cooling temperature of -10℃ to -20℃ and a cooling time of 25~35 seconds; the heating process is performed first, and after heating is completed, the mold is flattened by a pressure plate, and then the freezing process is performed immediately; the freezing process uses a wet towel to assist in cooling, and the wet towel is positioned between the mold and the cooling plate.

10. The method for manufacturing false eyelashes as described in claim 9, characterized in that, In step S7, the constant temperature of the heating process is 105°C; the cooling temperature of the freezing process is -15°C, and the cooling time is 30 seconds.

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