Plastic piece full pet material eyebrow pencil and preparation method thereof

Abstract

The application relates to a full-PET eyebrow pencil with a plastic part and a preparation method thereof, and aims to solve the technical problems of inconvenient production and assembly, poor air tightness, and easy appearance shrinkage of the thickest part of a pencil nozzle of existing similar products, and the like. The pencil nozzle assembly comprises a pencil nozzle and a middle section, one end of the pencil nozzle is provided with a pencil core hole, the outer diameter of one end of the middle section is provided with a nozzle buckle rib, the outer diameter of the middle section below the nozzle buckle rib is symmetrically provided with a convex and strip-shaped outer groove, one end of the nozzle buckle rib of the middle section is sleeved into the pencil nozzle and fixed in the pencil nozzle, the outer groove of the middle section is abutted against the inner wall of the pencil nozzle, the outer diameter of the screw inner thread is symmetrically provided with a convex rib, one end of the screw outer ring of the other end of the screw is sleeved into the positioning rib of the inner wall of the pencil body, meanwhile, the screw rod of the bead is screwed into the orifice of the screw thread of the other end of the screw, the orifice of the other end is buckled and fixed to the buckling rib of the outer diameter of the screw, the orifice of the other end of the pencil nozzle is abutted against the orifice of one end of the pencil body, and the pencil body, the pencil nozzle, the middle section and the screw are integrated.

Description

TECHNICAL FIELD

[0001] The application relates to an eyebrow pencil, and is an eyebrow pencil made of full PET material and a preparation method thereof. BACKGROUND

[0002] An eyebrow pencil is a kind of cosmetic for drawing eyebrows. There are two forms of modern eyebrow pencils, one is pencil type, and the other is push tube type. When in use, the pencil core is pushed out to draw eyebrows. The advantages of the eyebrow pencil are convenience and quickness, and it is suitable for outlining eyebrow shape, drawing short feather-like eyebrows, and outlining eyebrow tail. Some existing eyebrow pencils are respectively provided with eyebrow pencil, sponge head and eyelash brush at two ends, such as the application published in Chinese patent documents with the application publication number CN114376325A and the application publication date April 22, 2022, and the invention name "lightweight high-molecular three-head eyebrow pencil and preparation method thereof"; and the authorized announcement number CN213524238U and the authorized announcement date June 25, 2021, and the utility model name "antibacterial and anti-static double-head eyebrow pencil". However, the above products and similar products are less used for double-layer airtight effect, and it is difficult to achieve airtightness after filling of the products, and the products generally adopt a separate pencil tip structure, which leads to inconvenient production and appearance shrinkage at the thickest part of the pencil tip, which is prone to unqualified conditions. SUMMARY

[0003] In order to overcome the above-mentioned deficiencies, the purpose of the present application is to provide an eyebrow pencil made of full PET material and a preparation method thereof in the field, so as to solve the technical problems of poor structure design of existing similar products, leading to inconvenient production and assembly, poor airtightness, especially appearance shrinkage at the thickest part of the pencil tip, which is prone to unqualified conditions, and poor production and preparation effect of similar materials. The purpose is achieved through the following technical solutions.

[0004] The utility model provides a kind of full PET material plastic part eyebrow pencil, the pencil body component one end of the eyebrow pencil is equipped with nozzle component and spiral, the other end of pencil body component is equipped with eyelash brush component, the one end of pearl in nozzle component is sleeved into nozzle component, the other end of pearl is sleeved into spiral in pencil body component, pearl is rotated in spiral by rotating outside pearl, and the top of pearl is extended or retracted into nozzle component;Its structural design key points are that the nozzle component includes nozzle and middle piece, the one end of nozzle is equipped with pencil core hole, the outer diameter of the one end of middle piece is equipped with mouth buckle rib, the outer diameter of middle piece is symmetrically equipped with convex and strip-shaped outer groove below mouth buckle rib, the one end of mouth buckle rib of middle piece is sleeved into fixed in nozzle, while the outer groove of middle piece is abutted to the inner wall of nozzle;The outer diameter of the opening of the one end of spiral is symmetrically equipped with inclined screw thread, the outer diameter of the opening of spiral is symmetrically equipped with convex convex rib at screw thread, the other end of spiral is equipped with outer gear ring, the one end of outer gear ring of spiral is sleeved into fixed in the inner wall of pencil body, while the screw rod of pearl is rotated into the opening of screw thread at the other end of spiral, the opening of the other end of middle piece is buckled and fixed in the buckle rib of the outer diameter of spiral, the opening of the other end of nozzle is abutted to the opening of the one end of pencil body, pencil body, nozzle, middle piece, spiral are integrated, corresponding position is equipped with sealing ring.The eyebrow pencil is combined with nozzle and middle piece to replace the nozzle of existing eyebrow pencil, which is convenient for forming, and can improve the appearance shrinkage of the thickest part of the previous nozzle;The spiral and pencil body combination produces the first airtight effect.

[0005] The outer diameter of the outer groove of middle piece is symmetrically equipped with flat key groove below, the outer diameter of middle piece is respectively equipped with flat key rib at both ends of flat key groove, the opening is equipped with flat key groove and flat key rib of middle piece, the flat key rib of middle piece is abutted to the inner wall of pencil body, the outer diameter of middle piece is symmetrically equipped with outer groove at both sides of flat key groove, the flat key groove of middle piece is sleeved in the flat key edge of the inner wall of pencil body.

[0006] The outer diameter step ring of pencil core hole of nozzle is equipped with buckling edge below, the inner cover of pencil core cover component is buckled and fixed in the buckling edge of nozzle, the cover opening of first outer cover is buckled and fixed in the rotation stopping rib and convex buckle point of the outer diameter of the one end of pencil body, the outer diameter ring of the opening of pencil body is sealed groove below rotation stopping rib and convex buckle point, the ring sealing groove of pencil body is equipped with corresponding sealing ring.The ring sealing groove of above-mentioned pencil body produces the second airtight effect.

[0007] The inner cover is arranged in the first outer cover of pencil core cover component, the outer diameter of inner cover is equipped with convex cover buckle rib, the side of cover buckle rib is equipped with opening, the arc-shaped groove that is bent inwards is equipped between cover buckle rib and inner cover opening, the diameter of inner cover opening is less than the outer diameter of inner cover of both sides of cover buckle rib, the gap ring is equipped between the outer diameter of inner cover opening and the inner wall of first outer cover, the inner cover of first outer cover is buckled and fixed in the inner wall of first outer cover at cover buckle rib and opening, the buckling edge of nozzle is buckled and fixed in the inner wall of inner cover at inner buckle rib below inner cover opening.The third airtight effect is produced by the sleeve of above-mentioned nozzle and inner cover, and the anti-falling and anti-vibration effect of the inner cover structure of first outer cover is further improved.

[0008] The outer diameter of the end of the pen core hole above the buckle edge of the nozzle is symmetrically provided with a triangular outer slot, and the pen core hole is obliquely arranged to one side at the outer slot of the nozzle.

[0009] The outer diameter between the buckle rib of the spiral and the outer gear ring is provided with an air guide groove, and the orifice of the other end of the middle section is buckled and fixed to the buckle rib of the outer diameter of the spiral, while the orifice of the other end of the middle section is limited to the ring rib protruding on one side of the air guide groove. The ring rib protruding on the other end of the air guide groove seals the step groove at the inner wall of the pen body, and the sealing groove at the outer diameter of the inner spiral of the middle section is provided with a corresponding sealing ring.

[0010] The outer diameter of one end of the brush holder of the eyelash brush assembly is provided with a protruding stop rib, and the end of the brush holder is provided with an eyelash brush. The outer diameter of the other end of the brush holder below the stop rib is provided with an external thread, and the brush holder is rotatably fixed to the internal thread of the inner diameter of the pen mouth of the other end of the pen body through the external thread. The outer diameter of the brush holder is provided with a second outer cover.

[0011] The eyelash brush assembly is replaced with the brush assembly provided with the brush holder; or the eyelash brush assembly is replaced with a sponge head assembly. The outer diameter of one end of the sponge holder of the sponge head assembly is provided with the stop rib and the external thread, and the outer diameter of the other end of the sponge cavity of the sponge holder is provided with a sealing external thread. The cavity opening of the sponge cavity is provided with a sponge head, and the sponge holder is tightly screwed to the sealing internal thread of the inner wall of the second outer cover through the sealing external thread. The above-mentioned eyelash brush assembly, brush assembly and sponge head assembly are replaced as needed.

[0012] The present application has reasonable structure design, convenient production and assembly, good sealing performance and stability, firm buckle fixing structure between parts, especially convenient automatic production, and feasible material production and preparation; it is suitable for use as an eyebrow pencil with an eyelash brush, and structure improvement of similar products. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is an exploded structure schematic diagram of the present application.

[0014] Figure 2 is Figure 1 is an exploded structure schematic diagram of the cross-sectional state.

[0015] Figure 3 is Figure 2 is an assembly cross-sectional structure schematic diagram of the eyelash brush in use state, and the boxed part is enlarged.

[0016] Figure 4 is Figure 3 is an external structure schematic diagram, and the first outer cover and the inner cover are omitted.

[0017] Figure 5 is Figure 4 is a brush assembly separation state structure schematic diagram in use.

[0018] Figure 6 yes Figure 4 A schematic diagram of the sponge head assembly in its separated state during use.

[0019] Attached Figures and Their Names: 1. First Outer Cover, 2. Inner Cover, 201. Cover Buckling Rib, 202. Arc-shaped Groove, 203. Inner Buckling Rib, 3. Pen Tip, 301. Snapping Edge, 302. Outer Groove, 4. Middle Section, 401. Tip Buckling Rib, 402. Outer Groove, 403. Flat Keyway, 404. Body Buckling Groove, 5. Bead, 6. First Sealing Ring, 7. Spiral, 701. Thread, 702. Raised Rib, 703. Sealing Groove, 704. Snapping Rib, 705. Air Guide Groove, 706. Outer Gear Ring, 8. Second Sealing Ring, 9. Pen Body, 10. Brush Holder, 1001. Stop Rib, 1002. External Thread, 11. Mascara Brush, 12. Second Outer Cover, 13. Mascara Brush Assembly, 14. Brush Assembly, 15. Sponge Head Assembly. Implementation

[0020] The structure of the present invention will now be further described with reference to the accompanying drawings. For example... Figures 1-6 As shown, the eyebrow pencil has a tip assembly and a spiral 7 at one end of the body assembly, and an eyelash brush assembly 13, a bristle brush assembly 14, or a sponge head assembly 15 at the other end of the body assembly. One end of the bead 5 inside the tip assembly is inserted into the tip assembly, and the other end of the bead is inserted into the spiral inside the body assembly. The bead rotates on the spiral through the rotation of the tip assembly on the outside. The lead at the top of the bead extends out or retracts into the tip assembly. The specific structure is as follows: The above-mentioned pen tip assembly includes a pen tip 3 and a middle section 4. One end of the pen tip is provided with a pen refill hole. The outer diameter of one end of the middle section is provided with a tip retaining rib 401. The outer diameter of the middle section below the tip retaining rib is symmetrically provided with raised and strip-shaped outer grooves 402. One end of the tip retaining rib of the middle section is fitted into and fixed inside the pen tip, while the outer groove of the middle section abuts against the inner wall of the pen tip. The opening of one end of the spiral is symmetrically provided with oblique threads 701 on the inner diameter. The spiral opening at the threaded thread is symmetrically provided with raised ribs 702 on the outer diameter. The other end of the spiral is provided with an outer toothed ring 706. One end of the outer toothed ring of the spiral is fitted into the positioning rib fixed to the inner wall of the pen body 9. At the same time, the screw of the bead is screwed into the hole of the threaded thread at the other end of the spiral. The hole at the other end of the middle section is engaged and fixed to the engaging rib 704 on the outer diameter of the spiral. The hole at the other end of the pen tip abuts against the hole at one end of the pen body. The pen body, pen tip, middle section, and spiral are connected as one unit, and sealing rings are provided at corresponding positions. The outer diameter of the middle section is symmetrically provided with a flat keyway 403 below the outer groove. The outer diameter of the middle section at both ends of the flat keyway is provided with a flat key rib. The flat keyway of the middle section is connected to the flat key rib and has an opening. The flat key rib of the middle section abuts against the inner wall of the pen body. The outer groove 402 is symmetrically provided on both sides of the middle of the outer diameter of the flat keyway of the middle section. The flat keyway of the middle section fits into the flat key edge of the inner wall of the pen body.

[0021] The outer diameter step ring below the refill hole of the above-mentioned pen nozzle is provided with a clamping edge 301, the inner diameter of the cover opening of the inner cover 2 of the refill cover assembly is clamped and fixed to the clamping edge of the pen nozzle, the cover opening of the first outer cover 1 is clamped and fixed to the rotation-stopping rib and the protruding clamping point of the outer diameter of the pen opening at one end of the pen body, the outer diameter ring groove of the pen opening below the rotation-stopping rib and the protruding clamping point is provided with a corresponding sealing ring. The inner cover is arranged at the inner bottom of the first outer cover of the refill cover assembly, the outer diameter of the inner cover is provided with a protruding cover clamping rib 201, one side of the cover clamping rib is provided with an opening, an arc-shaped groove 202 is arranged between the cover clamping rib and the cover opening of the inner cover and is inwardly curved, the diameter of the cover opening of the inner cover is smaller than the outer diameter of the inner cover on both sides of the cover clamping rib, a gap ring is arranged between the outer diameter of the cover opening of the inner cover and the inner wall of the first outer cover, the cover clamping rib and the opening of the inner cover are clamped and fixed to the inner wall of the first outer cover, and the clamping edge of the pen nozzle is clamped and fixed to the inner clamping rib 203 below the inner wall of the cover opening of the inner cover. The outer diameter of one end of the refill hole above the clamping edge of the pen nozzle is symmetrically provided with a triangular outer side groove 302, and the refill hole at the outer side groove of the pen nozzle is obliquely arranged to one side.

[0022] The outer diameter between the clamping rib and the outer gear ring of the above-mentioned spiral is provided with an air guide groove 705, and the hole opening of the other end of the middle section is clamped and fixed to the clamping rib of the outer diameter of the spiral, and at the same time, the hole opening of the other end of the middle section is limited to the protruding ring rib on one side of the air guide groove. The ring rib protruding at the other end of the air guide groove seals the step groove at the inner wall of the pen body, and a corresponding sealing ring is arranged at the sealing groove 703 of the outer diameter of the inner spiral of the middle section. The outer diameter of one end of the brush holder of the eyelash brush assembly is provided with a protruding stop rib 1001, the end portion of the brush holder at the end is provided with an eyelash brush 11, the outer diameter of the other end below the stop rib is provided with an outer thread 1002, the brush holder is rotationally fixed to the inner thread of the inner diameter of the pen opening at the other end of the pen body through the outer thread, and the outer diameter of the brush holder is provided with a second outer cover 12. The eyelash brush assembly is provided with a brush assembly 14 of the brush holder; or the eyelash brush assembly is provided with a sponge head assembly 15, the outer diameter of one end of the sponge holder of the sponge head assembly is provided with the stop rib and the outer thread, the outer diameter of the other end of the sponge holder is provided with a sealing outer thread, the cavity opening of the sponge cavity is provided with a sponge head, and the sponge holder is rotationally fastened to the sealing inner thread of the inner wall of the second outer cover through the sealing outer thread. The corresponding sealing parts adopt a first sealing ring 6 and a second sealing ring 10.

[0023] The eyebrow pencil adopts double-layer airtight effect, and the product has higher airtightness requirement after filling; the above structure is specifically assembled and cooperated as follows: the first outer cover cooperates with the inner cover to be stamped and assembled to generate a fixing effect, the nozzle cooperates with the middle section, the nozzle cooperates with the middle section to be stamped and assembled to generate a fixed tension and a fixed rotation-stopping effect; the middle section cooperates with the pen body, the middle section cooperates with the screw to be stamped and assembled to generate a fixed tension effect; the bead cooperates with the screw, and after assembly, the bead generates up and down movement effect when rotating, the first sealing ring cooperates with the screw, and after assembly, a torsion effect is generated, the screw cooperates with the pen body, and after assembly, a rotation-stopping effect is generated; the screw cooperates with the pen body, and after assembly, an airtight effect is generated; the second sealing ring cooperates with the pen body, and after assembly, an airtight effect is generated; the pen body cooperates with the first outer cover, the pen body cooperates with the first outer cover, and after assembly, a fixed tension and a fixed rotation-stopping effect are generated; the pen body cooperates with the second outer cover, and after assembly, a fixed tension and a fixed rotation-stopping effect are generated; the pen body cooperates with the brush holder, and after assembly, a fixed tension effect is generated; the brush holder cooperates with the eyelash brush, and after assembly, a fixed tension and a fixed rotation-stopping effect are generated; after the pen body and the first outer cover assembly are assembled, the inner cover cooperates with the nozzle to generate an airtight effect.

[0024] The nozzle, the middle section, the bead, the screw and the pen body are made of PET material, and the component ratio of the PET material includes: polyethylene terephthalate 40%-60%, ethylene glycol modified-polyethylene terephthalate 15%-30%, polybutylene terephthalate 5%-8%, thermoplastic elastomer 1%-2%, modified graphene 10%-20%, and lubricant 0.01%-0.05%; the content of the polyethylene terephthalate is 45%-50%, the content of the ethylene glycol modified-polyethylene terephthalate is 24%-30%, the thermoplastic elastomer is a thermoplastic polyester elastomer, and the lubricant is a stearate.

[0025] The preparation method of the PET material includes the following steps: first, the ethylene glycol modified-polyethylene terephthalate is dried at 70-75°C for 6 hours, then the dried ethylene glycol modified-polyethylene terephthalate and other raw materials are mixed and granulated; then the blended and granulated material is uniformly mixed by a high-speed stirrer, and then dried at 145°C-150°C for 4 hours; finally, the dried mixed material is uniformly mixed by a high-speed stirrer, and then blended and granulated by a double-screw blender.

[0026] In use, the nozzle is rotated, and the pencil lead in the bead is extended or retracted into the pen body; the eyelash brush assembly, the brush assembly or the sponge head assembly can be replaced, and the corresponding parts can be used.

Claims

1. A plastic eyebrow pencil made entirely of PET material, wherein one end of the pencil body assembly is provided with a tip assembly and a spiral (7), and the other end of the pencil body assembly is provided with an eyelash brush assembly (13). One end of a bead (5) inside the tip assembly is inserted into the tip assembly, and the other end of the bead is inserted into the spiral inside the pencil body assembly. The bead rotates on the spiral through the rotation of the tip assembly on the outside, and the lead at the top of the bead extends out or retracts into the tip assembly; characterized in that The pen tip assembly includes a pen tip (3) and a middle section (4). One end of the pen tip is provided with a pen core hole. The outer diameter of one end of the middle section is provided with a pen tip retainer (401). The outer diameter of the middle section below the pen tip retainer is symmetrically provided with raised and strip-shaped outer grooves (402). One end of the pen tip retainer of the middle section is inserted and fixed into the pen tip, while the outer groove of the middle section abuts against the inner wall of the pen tip. The opening of the spiral (7) is symmetrically provided with oblique threads (701) on the inner diameter of the opening. The spiral opening at the threaded thread is symmetrically provided with raised ribs (702) on the outer diameter. The other end of the spiral is provided with an outer tooth ring (706). At the same time, one end of the ring is inserted into the positioning rib fixed to the inner wall of the pen body (9), and the screw of the bead (5) is screwed into the hole of the thread at the other end of the spiral. The hole at the other end of the middle section is fastened and fixed to the fastening rib (704) of the outer diameter of the spiral. The hole at the other end of the pen tip abuts against the hole at one end of the pen body. The pen body, pen tip, middle section, and spiral are connected as one unit, and a sealing ring is provided at the corresponding position. A fastening edge (301) is provided at the outer diameter step ring below the pen core hole of the pen tip (3). The inner diameter of the cover opening of the inner cover (2) of the pen core cover assembly is fastened and fixed to the fastening edge of the pen tip. The cover opening of the first outer cover (1) is fastened and fixed to the pen body (9). The inner cover (2) is located at the bottom of the first outer cover (1) of the pen refill cover assembly. The outer diameter of the inner cover has a raised cover buckle rib (201). One side of the cover buckle rib has an opening. An inwardly curved arc groove (202) is provided between the cover buckle rib and the inner cover opening. The diameter of the inner cover opening is smaller than the outer diameter of the inner cover on both sides of the cover buckle rib. A gap ring is provided between the outer diameter of the inner cover opening and the inner wall of the first outer cover. The cover buckle rib and the opening of the inner cover correspond to the inner wall of the first outer cover. The pen tip (3) is fastened and fixed inside the first outer cover. The fastening edge (301) of the pen tip (3) is fastened and fixed to the inner wall of the inner cover at the lower part of the cover opening. The outer diameter of the fastening rib (704) of the spiral (7) and the outer tooth ring (706) is provided with an air guide groove (705). The hole at the other end of the middle section (4) is fastened and fixed to the fastening rib (704) of the outer diameter of the spiral. At the same time, the hole of the middle section at this end is limited to the protruding ring rib on one side of the air guide groove. The protruding ring rib at the other end of the air guide groove seals the step groove at the inner wall of the pen body (9). The sealing groove (703) of the outer diameter of the inner spiral of the middle section is provided with a corresponding sealing ring.

2. The all-PET eyebrow pencil according to claim 1, characterized in that... The outer diameter of the outer groove (402) of the middle section (4) is symmetrically provided with a flat keyway (403). The outer diameter of the middle section at both ends of the flat keyway is provided with a flat key rib. The flat keyway of the middle section is connected to the flat key rib and has an opening. The flat key rib of the middle section abuts against the inner wall of the pen body (9). The outer groove (402) of the middle section is symmetrically provided on both sides of the middle diameter of the flat keyway. The flat keyway of the middle section fits into the flat key edge of the inner wall of the pen body.

3. The all-PET eyebrow pencil according to claim 1, characterized in that... The outer diameter of the lead hole at one end of the snap-fit ​​edge (301) of the pen tip (3) is symmetrically provided with a triangular outer groove (302), and the lead hole at the outer groove of the pen tip is obliquely set to one side.

4. The all-PET eyebrow pencil according to claim 1, characterized in that... The brush holder (10) of the eyelash brush assembly (13) has a raised stop rib (1001) on one end of its outer diameter. The brush holder end at this end is provided with an eyelash brush (11). The brush holder at the other end below the stop rib has an external thread (1002) on its outer diameter. The brush holder is rotated and fixed to the internal thread of the pen mouth at the other end of the pen body (9) by the external thread. The outer diameter of the brush holder is provided with a second outer cover (12).

5. The all-PET eyebrow pencil according to claim 4, characterized in that... The eyelash brush assembly (13) replaces the brush assembly (14) with the brush seat (10); or the eyelash brush assembly replaces the sponge head assembly (15), the outer diameter of one end of the sponge seat of the sponge head assembly is provided with the stop rib (1001) and the external thread (1002), the outer diameter of the sponge cavity at the other end of the sponge seat is provided with the sealing external thread, the opening of the sponge cavity is provided with the sponge head, and the sponge seat is screwed to the sealing internal thread of the inner wall of the second outer cover (12) through the sealing external thread.

6. The method for preparing the all-PET eyebrow pencil according to claim 1, characterized in that... The nib, middle section, bead, spiral, and pen body are made of PET material. The composition of the PET material includes: 40%-60% polyethylene terephthalate, 15%-30% ethylene glycol-modified polyethylene terephthalate, 5%-8% polybutylene terephthalate, 1%-2% thermoplastic elastomer, 10%-20% modified graphene, and 0.01%-0.05% lubricant.

7. The method for preparing the all-PET eyebrow pencil according to claim 6, characterized in that... The preparation method of the PET material includes the following steps: first, ethylene glycol-modified polyethylene terephthalate is dried at 70-75℃ for 6 hours; then, the dried ethylene glycol-modified polyethylene terephthalate is mixed with other raw materials and granulated; then, the granulated mixture is mixed evenly in a high-speed mixer and dried at 145℃-150℃ for 4 hours; finally, the dried mixture is mixed evenly in a high-speed mixer and then granulated by twin-screw extruder.

Images