Pressing head of cosmetic bottle and production process

Abstract

The pressing head of the cosmetic bottle comprises an inner cover, a plurality of liquid outlet heads distributed along the axis of the inner cover are arranged in the inner cover, one side of each liquid outlet head can exceed the side wall of the inner cover, the inner cover is sleeved with an outer cover, the outer cover can rotate along the axis of the inner cover, and a liquid outlet hole is formed in the side face of the outer cover. The ends of the liquid outlet heads can be inserted into the liquid outlet holes, and the outer cover is rotated so that the liquid outlet holes can directly face the corresponding liquid outlet heads respectively. The multiple liquid outlet heads are arranged in the inner cover, the outer cover capable of rotating is arranged outside the inner cover in a sleeving mode, the liquid outlet heads of different models are switched by rotating the outer cover, and therefore different liquid outlet modes are achieved.

Description

Technical Field

[0001] The present invention relates to a cosmetic container, and more particularly to a pressing head of a cosmetic bottle and a production process thereof. Background Art

[0002] For liquid cosmetics, a press pump is often used to dispense the liquid. The press head is mostly a columnar structure, and the liquid discharge head is embedded inside the press head. When pressed, the liquid is sprayed out from the liquid discharge head. The shape and quantity of the liquid sprayed by different types of liquid discharge heads are different. However, the current press heads are often equipped with only one type of liquid discharge head, which is inconvenient in actual use. Therefore, there is an urgent need to improve this. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a pressing head and production process for a cosmetic bottle, by arranging multiple liquid discharge heads inside an inner cover, and arranging a rotatable outer cover outside the inner cover, and by rotating the outer cover to switch different types of liquid discharge heads, different liquid discharge modes can be achieved.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pressing head for a cosmetic bottle, comprising an inner cover, wherein the inner cover is provided with a plurality of liquid discharge heads distributed along its axis, one side of the liquid discharge head can extend beyond the side wall of the inner cover, an outer cover is sleeved on the outer side of the inner cover, the outer cover can rotate along the axis of the inner cover, a liquid discharge hole is provided on the side of the outer cover, the end of the liquid discharge head can be inserted into the liquid discharge hole, and the outer cover is rotated so that the liquid discharge holes can respectively face the corresponding liquid discharge heads.

[0005] Furthermore, a rubber ring is provided on the inner wall of the outer cover, and the rubber ring is integrally formed with the outer cover. A second annular groove is provided on the inner wall of the rubber ring. One end of the liquid outlet head extending beyond the side wall of the inner cover can abut against the surface of the second annular groove to seal the liquid outlet end of the liquid outlet head. A positioning hole is provided in the second annular groove. The positioning hole is coaxial with the liquid outlet hole. One end of the liquid outlet head extending beyond the side wall of the inner cover can pass through the positioning hole.

[0006] Furthermore, the inner cover includes a mounting groove and a plurality of mounting holes corresponding to the liquid outlet head, the mounting holes connect the outer wall of the inner cover and the mounting groove, the liquid outlet head is installed in the mounting hole and can move in the mounting hole, the side wall of the liquid outlet head is sealed with the inner wall of the mounting hole, an elastic member is provided in the mounting groove, the elastic member includes a spring sheet corresponding to the liquid outlet head, and the spring sheet abuts against the side of the liquid outlet head facing the mounting groove.

[0007] Furthermore, the liquid outlet head includes a limiting portion, a limiting hole is provided on the side of the mounting hole facing the mounting groove, the diameter of the limiting hole is larger than the mounting hole, the limiting portion is inserted into the limiting hole, the end of the limiting portion can abut against the side of the mounting hole facing the mounting groove, and the spring sheet abuts against the limiting portion.

[0008] Furthermore, a lining is fixed in the installation groove, the elastic member is sleeved on the outside of the lining, a first annular groove is provided on the upper part of the installation groove, the lining includes a first annular platform, the lower part of the first annular platform abuts against the upper part of the first annular groove, a limiting rib is provided on the lower part of the first annular platform, and the limiting rib is inserted into the elastic member.

[0009] Furthermore, a pin cover is installed inside the inner liner, the top of the outer cover is sleeved on the outside of the pin cover, the outer cover and the inner cover are connected through the pin cover, a second annular rib is provided on the upper part of the first annular platform, a supporting groove is provided on the top surface of the outer cover, the upper end of the second annular rib is inserted into the supporting groove, the pin cover includes a top surface, the lower part of the top surface abuts against the upper part of the second annular rib, the lower part of the top surface is provided with a third annular rib, the third annular rib is inserted into the second annular rib, and the side wall of the third annular rib and the inner wall of the second annular rib are sealed by a sealing ring.

[0010] Furthermore, an annular convex rib is provided on the inner wall of the second annular rib, the outer diameter of the third annular rib is smaller than the inner diameter of the annular convex rib, the sealing ring is sleeved on the outer wall of the third annular rib, the inner ring of the sealing ring is embedded in the third annular rib, the outer ring of the sealing ring abuts against the inner wall of the second annular rib, and the upper part of the sealing ring abuts against the lower part of the annular convex rib.

[0011] Furthermore, the limiting ribs correspond to the liquid outlet heads one by one, the inner walls of the plurality of limiting ribs form a tapered surface that is larger at the top and smaller at the bottom, and the outer wall of the third annular rib can abut against the tapered surface and push the limiting ribs to expand outwards;

[0012] The elastic member includes a deformation piece corresponding to the liquid outlet head, a limiting piece is provided between two adjacent deformation pieces, the adjacent limiting pieces and deformation pieces are flexibly connected through a flexible part, the spring piece is connected to the corresponding deformation piece, the limiting ribs correspond to the deformation piece one by one, the limiting ribs expand outwardly to push the deformation piece to expand outwardly so that the spring piece abuts against and squeezes the liquid outlet head, a plurality of positioning ribs are provided on the inner wall of the mounting groove, and the positioning ribs are embedded in the corresponding limiting piece for limiting.

[0013] A production process of a cosmetic bottle pressing head, comprising the following steps:

[0014] S1. Insert the liquid outlet heads into the corresponding installation holes one by one;

[0015] S2. The elastic piece is sleeved outside the area surrounded by the inner lining limiting ribs, and the spring pieces correspond to the liquid outlet heads one by one;

[0016] S3, fix the assembly formed in step S2 on the upper part of the placement table, insert the assembly formed by the elastic member and the limiting rib into the installation groove and fix it by an ultrasonic welding machine, weld and fix the lower part of the first annular table to the first annular groove, and each spring piece abuts against the corresponding liquid outlet head;

[0017] S4, the outer cover is placed on the outer side of the inner cover, and the second annular rib is inserted into the support groove from bottom to top;

[0018] S5. Insert the pin cover with the sealing ring into the second annular rib from top to bottom, the sealing ring passes over the annular convex rib, and the third annular rib squeezes the limiting rib, so that the deformation sheet expands outward, and the spring sheet squeezes the pressing head to ensure that the liquid outlet head is located on one side of the outer wall of the inner cover and can be close to the inner wall of the rubber ring. The outer cover and the rubber ring are integrally formed by secondary injection molding;

[0019] S6, fix the assembly formed in step S5 upside down on the placement table, connect the bottom sleeve to the welding head of the ultrasonic welding machine, and weld the bottom sleeve and the inner cover to fix them by the ultrasonic welding machine;

[0020] S7. Complete the assembly.

[0021] Furthermore, the ultrasonic welding machine includes a workbench, a sliding cylinder is provided at the upper part of the workbench, a placing table is installed at the working end of the sliding cylinder, a first limit groove and a second limit groove are provided at the upper part of the placing table, the first limit groove is used to place the component formed in step S2, and the second limit groove is used to place the component formed in step S5, a chassis is provided above the placing table, a welding rod is provided at the lower part of the chassis, a welding head that can be lifted up and down is provided at the lower end of the welding rod, and the welding head is used to weld the inner cover and the inner lining, as well as the inner cover and the bottom sleeve.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. When in use, you only need to rotate the outer cover and face the liquid outlet hole to one of the liquid outlet heads. The other liquid outlet head is located inside the outer cover. When pressing, the liquid outlet head facing the liquid outlet hole can discharge liquid. When you need to switch to another liquid outlet mode, you only need to rotate the outer cover and face the other liquid outlet head to the liquid outlet hole to achieve another liquid outlet mode. Thus, multiple liquid outlet modes of one pressing head are achieved, which is easy to operate and convenient for people with different needs to use, and the user experience is good;

[0024] 2. When installing the elastic member, the elastic member is sleeved on the outside of the limiting rib, and then the liner and the inner cover are welded and fixed by an ultrasonic welding machine. At this time, the spring pieces are respectively facing the corresponding liquid outlet heads. After the liner is installed, the pin cover is installed. In the process of installing the pin cover, the limiting rib can be expanded outward through the cooperation between the conical surface and the third annular rib, and the corresponding deformation piece is pushed to expand and deform outward through the limiting rib, which is equivalent to driving the spring piece to move toward the corresponding liquid outlet head, ensuring that the spring piece has sufficient thrust on the liquid outlet head, thereby avoiding the liquid outlet head from being stuck when moving, resulting in the liquid outlet head being unable to be effectively inserted into the liquid outlet hole. By setting the spring piece, when the liquid outlet head is located in the second annular groove, the sealing effect of the liquid outlet head at this location can also be effectively improved to prevent the other liquid outlet heads from leaking during the liquid outlet process. Since the internal space size of the inner cover is small, by setting an integral elastic member, and the cooperation between the liner, the pin cover and the elastic member, not only can the installation of the elastic member be greatly facilitated, the production and manufacturing of the pressing head can be facilitated, but also the resilience of the liquid outlet head can be effectively guaranteed, and the structural reliability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of this embodiment;

[0026] Figure 2 is a schematic diagram of the structure of the lining;

[0027] Figure 3 is a cross-sectional view of the lining;

[0028] Figure 4 is a schematic diagram of the structure of the elastic member;

[0029] Figure 5 is a sectional view of the main view of this embodiment;

[0030] Figure 6 for Figure 5 A magnified view at point A;

[0031] Figure 7 for Figure 5 A zoomed in picture of sitting at B;

[0032] Figure 8 is a cross-sectional view of the top view of this embodiment;

[0033] Fig. 9 for Figure 8 Schematic diagram of the local structure;

[0034] Fig.10 It is a structural schematic diagram of an ultrasonic welding machine;

[0035] Fig.11 for Fig.10 Enlarged view at C;

[0036] Fig.12This is a partial schematic diagram of using an ultrasonic welding machine to fix the bottom sleeve.

[0037] Figure numerals: 1, inner cover; 11, mounting groove; 12, liquid inlet joint; 13, mounting hole; 14, limiting hole; 15, positioning rib; 16, first annular groove; 17, notch; 18, first annular rib; 2, liquid outlet head; 21, limiting part; 3, outer cover; 31, liquid outlet hole; 32, supporting groove; 33, mark one; 4, rubber ring; 41, second annular groove; 42, positioning hole; 5, elastic member; 51, deformation piece; 52, limiting piece; 53, flexible part; 54, avoidance hole; 55, spring piece; 56, first liquid passage groove; 6, lining; 61, first annular platform; 62, second annular rib; 63, limiting rib; 631, protrusion; 632, second liquid passage groove; 63 3. conical surface; 64. incision; 65. limit block; 66. boss; 67. annular convex rib; 68. third annular groove; 69. avoidance groove; 7. pin cover; 71. top surface; 72. second annular platform; 73. third annular rib; 74. sealing ring; 75. mark two; 8. bottom sleeve; 81. third annular platform; 82. fourth annular platform; 83. fourth annular rib; 84. through hole; 9. ultrasonic welding machine; 91. workbench; 92. chassis; 93. welding rod; 94. welding head; 941. first support platform; 942. second support platform; 943. supporting rib; 95. placement platform; 951. first limit groove; 952. second limit groove; 96. sliding cylinder. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 12 As shown, the present embodiment discloses a pressing head of a cosmetic bottle, comprising an inner cover 1, wherein the inner cover 1 is provided with a plurality of liquid outlet heads 2 distributed along its axis, and one side of the liquid outlet head 2 can extend beyond the side wall of the inner cover 1. Specifically, in the present embodiment, the number of the liquid outlet heads 2 is preferably two, and the shapes of the liquid outlet holes in the two liquid outlet heads 2 are different, and the shapes of the liquids sprayed from the two liquid outlet heads 2 are also different. The inner cover 1 comprises a mounting groove 11 and a plurality of mounting holes 13 corresponding to the liquid outlet heads 2, and the mounting holes 13 are connected to the outer wall of the inner cover 1 and the mounting groove 11. The liquid outlet head 2 is installed in the mounting hole 13, and the side wall of the liquid outlet head 2 is sealed with the inner wall of the mounting hole 13. The number of the mounting holes 13 is consistent with the number of the liquid outlet heads 2, and the liquid outlet heads 2 are horizontally arranged.

[0040] like Figure 5As shown, an outer cover 3 is sleeved on the outer side of the inner cover 1, and the outer cover 3 can rotate along the axis of the inner cover 1. A liquid outlet hole 31 is provided on the side of the outer cover 3. The outer cover 3 is rotated so that the liquid outlet holes 31 can face the corresponding liquid outlet heads 2 respectively. A liquid inlet joint 12 is provided inside the inner cover 1, and the liquid inlet joint 12 is connected to the mounting groove 11. The liquid inlet joint 12 is used to connect a pressing pump head of the cosmetic bottle (not shown in the figure). When in use, it is only necessary to rotate the outer cover 3 to make the liquid outlet hole 31 face one of the liquid outlet heads 2, and the other liquid outlet head 2 is located inside the outer cover 3. At this time, when pressed, the liquid outlet head 2 facing the liquid outlet hole 31 can discharge liquid. When it is necessary to switch to another liquid outlet mode, it is only necessary to rotate the outer cover 3 to make the other liquid outlet head 2 face the liquid outlet hole 31 to achieve another liquid outlet mode, thereby achieving multiple liquid outlet modes of a pressing head, which is easy to operate, convenient for people with different needs to use, and good user experience.

[0041] like Figure 5 and Figure 6 As shown, when discharging liquid, the liquid enters the mounting groove 11 from the liquid inlet joint 12, and then flows out from the liquid outlet head 2. Therefore, when the liquid is pressed to discharge, liquid will flow out from the two liquid outlet heads 2. In order to prevent the liquid outlet head 2 that is not facing the liquid outlet hole 31 from discharging liquid, a rubber ring 4 is arranged on the inner wall of the outer cover 3. Specifically, a rubber ring 4 is arranged on the inner wall of the outer cover 3, and the rubber ring 4 is connected to the outer cover 3 by a two-step injection molding method. In this way, the displacement of the rubber ring 4 during the rotation of the outer cover 3 can be effectively prevented. A second annular groove 41 is arranged on the inner wall of the rubber ring 4. One end of the liquid outlet head 2 that exceeds the side wall of the inner cover 1 can abut against the surface of the second annular groove 41 to seal the liquid outlet end of the liquid outlet head 2. The inner walls of the rubber ring 4 located on the upper and lower sides of the second annular groove 4 can abut against the side wall of the inner cover 1. By providing the second annular groove 41, the ends of the liquid outlet head 2 other than those facing the liquid outlet hole 31 can be sealed, thereby effectively preventing these liquid outlet heads 2 from discharging liquid, and the structural reliability is good.

[0042] like Figures 5 to 7 As shown, a positioning hole 42 is provided in the second annular groove 41, and the positioning hole 42 is coaxial with the liquid outlet hole 31. The end of the liquid outlet head 2 that extends beyond the side wall of the inner cover 1 can pass through the positioning hole 42 and be inserted into the liquid outlet hole 31. The liquid outlet head 2 can move in the mounting hole 13. Through the movable liquid outlet head 2, when the liquid outlet head 2 is facing the liquid outlet hole 31, the liquid outlet head 2 can penetrate into the liquid outlet hole 31, so that the end of the liquid outlet head 2 can be closer to the outer surface of the outer cover 3, which can not only improve the liquid spraying effect and prevent the wall thickness of the liquid outlet hole 31 from blocking the liquid, but also effectively improve the aesthetics and integrity of the pressing head, so that it is easier to be accepted by consumers, and when the outer cover 3 is rotated, since the side surface of the liquid outlet head 2 and the positioning hole 42 are inclined, the liquid outlet head 2 can retract, so that the outer cover 3 can rotate normally.

[0043] like Figures 2 to 9 As shown, the upper end of the mounting groove 11 is open, and an elastic member 5 is provided in the mounting groove 11. The elastic member 5 includes a spring piece 55 corresponding to the liquid outlet head 2, and the spring piece 55 abuts against the side of the liquid outlet head 2 facing the mounting groove 11. Specifically, an inner liner 6 is fixed in the mounting groove 11, and a first annular groove 16 is provided at the upper part of the mounting groove 11. The inner liner 6 includes a first annular platform 61, and the lower part of the first annular platform 61 abuts against the upper part of the first annular groove 16. The lower part of the first annular platform 61 is fixed to the upper part of the first annular groove 16 by ultrasonic welding. The elastic member 5 is sleeved on the outer side of the inner liner 6, and a limiting rib 63 is provided at the lower part of the first annular platform 61. Two adjacent limiting ribs 62 are isolated by a cutout 64. The limiting rib 63 is inserted into the inner liner 6. The elastic member 5 is inserted into the elastic member 5, the elastic member 5 includes a deformation piece 51 corresponding to the liquid outlet head 2, a limiting piece 52 is provided between two adjacent deformation pieces 51, and the adjacent limiting pieces 52 and deformation pieces 51 are flexibly connected through a flexible part 53. The elastic member 5 is a metal member, and the thickness of the flexible part 53 is less than the thickness of the limiting piece 52 and the deformation piece 51. The spring piece 55 is connected to the corresponding deformation piece 51, and the limiting rib 63 corresponds to the deformation piece 51 one by one. The limiting rib 63 corresponds to the liquid outlet head 2 one by one. The inner walls of the plurality of limiting ribs 63 form a conical surface 633 with a larger upper part and a smaller lower part. A pin cover 7 is installed inside the liner 6, and the pin cover 7 includes a top surface 71, and a third annular rib 73 is provided at the lower part of the top surface 71. The third annular rib 7 3 is inserted into the second annular rib 62, and the outer wall of the third annular rib 73 can abut the conical surface 633 and push the limiting rib 63 to expand outward. The limiting rib 63 expands outward to push the deformation piece 51 to expand outward, so that the spring piece 55 abuts and squeezes the liquid outlet head 2. When installing the elastic member 5, the elastic member 5 is sleeved on the outside of the limiting rib 63, and then the liner 6 and the inner cover 1 are welded and fixed by an ultrasonic welding machine. At this time, the spring pieces 55 are respectively facing the corresponding liquid outlet heads 2. After the liner 6 is installed, the pin cover 7 is installed. In the process of installing the pin cover 7, the limiting rib 63 can be expanded outward through the cooperation between the conical surface 633 and the third annular rib 73, and the corresponding deformation piece 51 is pushed outward to expand and deform through the limiting rib 63. , which is equivalent to driving the spring piece 55 to move toward the corresponding liquid outlet head 2, ensuring that the spring piece 55 has sufficient thrust on the liquid outlet head 2, thereby avoiding the liquid outlet head 2 from getting stuck when moving, resulting in the liquid outlet head 2 being unable to be effectively inserted into the liquid outlet hole 31. By arranging the spring piece 55, when the liquid outlet head 2 is located in the second annular groove 41, the sealing effect of the liquid outlet head 2 at this location can be effectively improved to prevent the other liquid outlet heads 2 from leaking during the liquid discharge process; since the internal space size of the inner cover 1 is relatively small, the integral elastic member 5 is arranged, and the cooperation between the liner 6, the pin cover 7 and the elastic member 5 can not only greatly facilitate the installation of the elastic member 5 and facilitate the production of the pressing head, but also effectively ensure the resilience of the liquid outlet head 2, and the structural reliability is good.

[0044] The liquid discharge head 2 includes a limiting portion 21, and a limiting hole 14 is provided on the side of the mounting hole 13 facing the mounting groove 11. The limiting hole 14 has a diameter larger than the mounting hole 13. The limiting portion 21 is inserted into the limiting hole 14, and the end of the limiting portion 21 can abut against the side of the mounting hole 13 facing the mounting groove 11. The spring piece 55 abuts against the limiting portion 21. By setting the limiting portion 21, the liquid discharge head 2 can be prevented from falling from the mounting hole 13, thereby preventing the liquid discharge head 2 from falling off during use, making the structure more reliable.

[0045] like Figure 1 and Figure 7 As shown, a notch 17 is provided in the area of ​​the mounting groove 11 above the limiting hole 14, and the spring piece 55 can pass over the notch 17 and abut against the liquid outlet head 2. By providing the notch 17, when the elastic member 5 is installed, the spring piece 55 can be closer to the liquid outlet head 2 in the initial state.

[0046] like Figure 2 , Figure 4 and Figure 5 As shown, a avoidance hole 54 is provided inside the deformation piece 51, one end of the spring piece 55 is connected to the avoidance hole 54, a first liquid passage groove 56 is provided at the upper and lower ends of the deformation piece 51, and a second liquid passage groove 632 is provided at the lower part of the limiting rib 63, and the liquid inlet connector 12, the second liquid passage groove 632, the first liquid passage groove 56, the avoidance hole 54 and the liquid outlet head 2 are all connected, which is beneficial to the transportation of the liquid.

[0047] like Fig. 9 As shown, a protrusion 631 is provided on the outer side of the limiting rib 63, and the outer wall of the protrusion 631 abuts against the inner wall of the deformation piece 51. By providing the protrusion 631, the deformation piece 51 can be pushed to move and deform while reducing the area of ​​the deformation piece 51.

[0048] like Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, a boss 66 is provided at the lower portion of the first annular platform 61, and the upper portion of the elastic member 5 abuts against the lower portion of the boss 66. A limiting block 65 is provided on the side of the limiting rib 63, and the limiting block 65 can abut against the inner wall of the limiting piece 52 for installation and positioning of the elastic member 5. A plurality of positioning ribs 15 are provided on the inner wall of the installation groove 11, and the positioning ribs 15 are embedded in the corresponding limiting piece 52 for limiting. Through the positioning ribs 15, the limiting piece 52 and the limiting block 65, the installation position of the elastic member 5 can be positioned to prevent the elastic member 5 from rotating and causing position displacement.

[0049] The top of the outer cover 3 is sleeved on the outside of the pin cover 7, and the outer cover 3 is connected to the inner cover 1 through the pin cover 7. The upper part of the first annular platform 61 is provided with a second annular rib 62, and the top surface 71 of the outer cover 3 is provided with a support groove 32. The upper end of the second annular rib 62 is inserted into the support groove 32, and the lower part of the top surface 71 abuts against the upper part of the second annular rib 62. The side wall of the third annular rib 73 and the inner wall of the second annular rib 62 are sealed by a sealing ring 74. The inner wall of the second annular rib 62 is provided with an annular convex rib 67, and the outer diameter of the third annular rib 73 is smaller than the inner diameter of the annular convex rib 67. The sealing ring 74 is sleeved on the outer wall of the third annular rib 73, and the inner ring of the sealing ring 74 is embedded in the third annular rib 73. The outer ring of the sealing ring 74 abuts against the inner wall of the second annular rib 62, and the upper part of the sealing ring 74 abuts against the lower part of the annular convex rib 67. A third annular groove 68 is provided at the lower part of the annular rib 67. When the pin cover 7 is pulled upward, the sealing ring 74 can be deformed and embedded in the third annular groove 68. A second annular platform 71 is provided at the lower part of the top surface 71. The lower surface of the second annular platform 71 is clearance-matched with the upper surface of the annular rib 67. Through the cooperation of the inner cover 1, the outer cover 3, the liner 6 and the pin cover 7, not only the connection between the inner cover 1 and the outer cover 3 can be achieved, but also the rotation of the outer cover 3 can be achieved. In addition, by providing the sealing ring 74, the mounting groove 11 can be sealed to prevent liquid leakage. The upper surface of the annular rib 67 is an inclined surface inclined downward, so that the sealing ring 74 can easily pass over the annular rib 67. The third annular groove 68 is provided on the lower surface of the annular rib 67, which can form a "hook" effect, thereby effectively preventing the pin cover 7 from falling out and improving the reliability of the structure.

[0050] like Figure 1 As shown, a mark 2 75 corresponding to the position of the liquid outlet head 2 is provided on the top of the top cover 71, and a mark 1 33 corresponding to the position of the liquid outlet hole 31 is provided on the top of the outer cover 3. When the mark 1 33 is opposite to the mark 2 75, the liquid outlet head 2 located at the mark 2 75 is inserted into the liquid outlet hole 31, thereby facilitating operation.

[0051] like Figure 5As shown, the bottom of the inner cover 1 is provided with a first annular rib 18, and the first annular rib 18 is in clearance with the inner wall of the outer cover 3. By providing the first annular rib 18, the stability of the rotation of the outer cover 3 can be improved. The lower part of the inner cover 1 is connected with a bottom sleeve 8, and the inner cover 1 and the bottom sleeve 8 are welded and fixed by an ultrasonic welding machine 9. The bottom sleeve 8 includes a third annular platform 81, and the upper part of the third annular platform 81 is in clearance with the lower part of the outer cover 3. The outer wall of the third annular platform 81 is flush with the outer wall of the outer cover 3. By providing the third annular platform 81, the stability of the outer cover can be further improved. 3 rotation stability, the third annular platform 81 is provided with a fourth annular platform 82 on the upper part, the fourth annular platform 82 is provided with a fourth annular rib 83 on the upper part, the upper part of the fourth annular platform 82 abuts against the lower part of the first annular rib 18 and is welded and fixed to the first annular rib 18, the fourth annular rib 83 is inserted into the inner cover 1, the bottom sleeve 8 includes a through hole 84, the cross section of the through hole 84 is non-circular, the through hole 84 cooperates with the cosmetic bottle body (not shown in the figure), so as to limit the position of the inner cover 1, and prevent the outer cover 3 from rotating and driving the inner cover 1 to rotate when in use.

[0052] A production process of a cosmetic bottle pressing head, comprising the following steps:

[0053] S1, insert the liquid outlet heads 2 into the corresponding mounting holes 13 one by one;

[0054] S2, the elastic member 5 is sleeved outside the area surrounded by the limiting ribs 63 of the inner lining 6, and the spring pieces 55 correspond to the liquid outlet heads 2 one by one;

[0055] S3, fix the assembly formed in step S2 on the upper part of the placement table 95, insert the assembly formed by the elastic member 5 and the limiting rib 63 into the installation groove 11 and fix it by the ultrasonic welding machine 9, and weld the lower part of the first annular platform 61 to the first annular groove 16, and each spring piece 55 abuts against the corresponding liquid outlet head 2;

[0056] S4, the outer cover 3 is sleeved on the outer side of the inner cover 1, and the second annular rib 62 is inserted into the supporting groove 32 from bottom to top;

[0057] S5. Insert the pin cover 7 equipped with the sealing ring 74 into the second annular rib 62 from top to bottom, the sealing ring 74 passes over the annular convex rib 67, and the third annular rib 73 squeezes the limiting rib 63, so that the deformation sheet 51 expands outward, and the spring sheet 55 squeezes the pressing head to ensure that the liquid outlet head 2 is located on one side of the outer wall of the inner cover 1 and can be closely attached to the inner wall of the rubber ring 4. The outer cover 3 and the rubber ring 4 are integrally formed by secondary injection molding;

[0058] S6, fix the assembly formed in step S5 upside down on the placement table 95, connect the bottom sleeve 8 to the welding head 94 of the ultrasonic welding machine 9, and weld the bottom sleeve 8 to the inner cover 1 by the ultrasonic welding machine 9;

[0059] S7. Complete the assembly.

[0060] Through the above process, the pressing head can be assembled with simple process and high efficiency.

[0061] like Figures 10 to 12 As shown, the ultrasonic welding machine 9 includes a workbench 91, a sliding cylinder 96 is provided on the upper part of the workbench 91, a placing table 95 is installed on the working end of the sliding cylinder 96, a first limiting groove 951 and a second limiting groove 952 are provided on the upper part of the placing table 95, the first limiting groove 951 is used to place the component formed in step S2, and the second limiting groove 952 is used to place the component formed in step S5, a chassis 92 is provided above the placing table 95, a welding rod 93 is provided at the lower part of the chassis 92, a welding head 94 that can be lifted up and down is provided at the lower end of the welding rod 93, the welding head 94 is used to weld the inner cover 1 and the liner 6, and weld the inner cover 1 and the bottom sleeve 8, a first supporting platform 941 is provided at the lower part of the welding head 94, a second supporting platform 942 is provided at the lower part of the first supporting platform 941, and a second supporting platform 942 is provided at the lower part of the second supporting platform 94 2 is provided with a support rib 943 at the lower part. When welding the liner 6 and the inner cover 1, the support rib 943 is inserted into the avoidance groove 69 of the liner 6, and the upper part of the liner 6 abuts against the lower part of the second support platform 942. By moving the welding head 94, the liner 6 and the inner cover 1 can be welded and fixed; when welding the inner cover 1 and the bottom sleeve 8, it is necessary to first move the second limit groove 952 to the bottom of the welding head 94 by the sliding cylinder 96. During the welding process, the first support platform 941 is inserted into the through hole 84, and the third annular platform 81 abuts against the lower part of the welding head 94 to achieve the welding of the inner cover 1 and the bottom sleeve 8. Among them, the welding principle of the ultrasonic welding machine 9 is the existing technology. The inner cover 1, the liner 6 and the bottom sleeve 8 are all plastic parts. The outer cover 3, the inner cover 1, the liner 6 and the bottom sleeve 8 can be connected and fixed by the ultrasonic welding machine 9. Not only is the fixing method simple, but also the reliability is good.

[0062] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pressing head for a cosmetic bottle, characterized in that: The invention comprises an inner cover (1), wherein a plurality of liquid outlet heads (2) are arranged inside the inner cover (1) and distributed along the axis thereof, one side of the liquid outlet head (2) can extend beyond the side wall of the inner cover (1), an outer cover (3) is sleeved on the outer side of the inner cover (1), the outer cover (3) can rotate along the axis of the inner cover (1), a liquid outlet hole (31) is arranged on the side of the outer cover (3), the end of the liquid outlet head (2) can be inserted into the liquid outlet hole (31), and the outer cover (3) is rotated so that the liquid outlet holes (31) can respectively face the corresponding liquid outlet heads (2).

2. A pressing head for a cosmetic bottle according to claim 1, characterized in that: The inner wall of the outer cover (3) is provided with a rubber ring (4), the rubber ring (4) and the outer cover (3) are integrally formed, the inner wall of the rubber ring (4) is provided with a second annular groove (41), the end of the liquid outlet head (2) protruding from the side wall of the inner cover (1) can abut against the surface of the second annular groove (41) to seal the liquid outlet end of the liquid outlet head (2), a positioning hole (42) is provided in the second annular groove (41), the positioning hole (42) is coaxial with the liquid outlet hole (31), and the end of the liquid outlet head (2) protruding from the side wall of the inner cover (1) can pass through the positioning hole (42).

3. The pressing head of a cosmetic bottle according to claim 1, characterized in that: The inner cover (1) comprises a mounting groove (11) and a plurality of mounting holes (13) corresponding to the liquid discharge head (2); the mounting holes (13) are connected to the outer wall of the inner cover (1) and the mounting groove (11); the liquid discharge head (2) is mounted in the mounting hole (13) and is movable in the mounting hole (13); the side wall of the liquid discharge head (2) is sealed with the inner wall of the mounting hole (13); an elastic member (5) is provided in the mounting groove (11); the elastic member (5) comprises a spring sheet (55) corresponding to the liquid discharge head (2); the spring sheet (55) abuts against a side of the liquid discharge head (2) facing the mounting groove (11).

4. The pressing head of a cosmetic bottle according to claim 3, characterized in that: The liquid outlet head (2) comprises a limiting portion (21); a limiting hole (14) is provided on the side of the mounting hole (13) facing the mounting groove (11); the diameter of the limiting hole (14) is larger than that of the mounting hole (13); the limiting portion (21) is inserted into the limiting hole (14); the end of the limiting portion (21) can abut against the side of the mounting hole (13) facing the mounting groove (11); and the spring sheet (55) abuts against the limiting portion (21).

5. The pressing head of a cosmetic bottle according to claim 3, characterized in that: An inner liner (6) is fixed in the installation groove (11), the elastic member (5) is sleeved on the outer side of the inner liner (6), a first annular groove (16) is provided at the upper part of the installation groove (11), the inner liner (6) comprises a first annular platform (61), the lower part of the first annular platform (61) abuts against the upper part of the first annular groove (16), a limiting rib (63) is provided at the lower part of the first annular platform (61), and the limiting rib (63) is inserted into the elastic member (5).

6. The pressing head of a cosmetic bottle according to claim 5, characterized in that: A pin cover (7) is installed inside the inner liner (6); the top of the outer cover (3) is sleeved on the outside of the pin cover (7); the outer cover (3) and the inner cover (1) are connected via the pin cover (7); a second annular rib (62) is provided on the upper part of the first annular platform (61); a supporting groove (32) is provided on the top surface (71) of the outer cover (3); the upper end of the second annular rib (62) is inserted into the supporting groove (32); the pin cover (7) comprises a top surface (71); the lower part of the top surface (71) abuts against the upper part of the second annular rib (62); a third annular rib (73) is provided on the lower part of the top surface (71); the third annular rib (73) is inserted into the second annular rib (62); the side wall of the third annular rib (73) and the inner wall of the second annular rib (62) are sealed via a sealing ring (74).

7. The pressing head of a cosmetic bottle according to claim 6, characterized in that: An annular convex rib (67) is provided on the inner wall of the second annular rib (62); the outer diameter of the third annular rib (73) is smaller than the inner diameter of the annular convex rib (67); the sealing ring (74) is sleeved on the outer wall of the third annular rib (73); the inner ring of the sealing ring (74) is embedded in the third annular rib (73); the outer ring of the sealing ring (74) abuts against the inner wall of the second annular rib (62); and the upper part of the sealing ring (74) abuts against the lower part of the annular convex rib (67).

8. The pressing head of a cosmetic bottle according to claim 6, characterized in that: The limiting ribs (63) correspond to the liquid outlet heads (2) one by one, the inner walls of the plurality of limiting ribs (63) form a tapered surface (633) that is larger at the top and smaller at the bottom, and the outer wall of the third annular rib (73) can abut against the tapered surface (633) and push the limiting ribs (63) to expand outwards; The elastic member (5) comprises a deformation sheet (51) corresponding to the liquid outlet head (2); a limiting sheet (52) is provided between two adjacent deformation sheets (51); adjacent limiting sheets (52) and deformation sheets (51) are flexibly connected via a flexible portion (53); the spring sheet (55) is connected to the corresponding deformation sheet (51); the limiting ribs (63) correspond to the deformation sheets (51) one by one; the limiting ribs (63) expand outwardly to push the deformation sheet (51) to expand outwardly and enable the spring sheet (55) to abut against and squeeze the liquid outlet head (2); a plurality of positioning ribs (15) are provided on the inner wall of the mounting groove (11); the positioning ribs (15) are embedded in the corresponding limiting sheet (52) for positioning.

9. A production process of a cosmetic bottle pressing head, applied to a cosmetic pressing head as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1, inserting the liquid outlet heads (2) into the corresponding mounting holes (13) one by one; S2, the elastic member (5) is sleeved outside the area surrounded by the limiting ribs (63) of the inner lining (6), and the spring pieces (55) correspond to the liquid outlet heads (2) one by one; S3, fixing the assembly formed in step S2 on the upper part of the placement platform (95), inserting the assembly formed by the elastic member (5) and the limiting rib (63) into the installation groove (11) and fixing it by an ultrasonic welding machine (9), welding the lower part of the first annular platform (61) and the first annular groove (16) to fix them, and each spring sheet (55) abuts against the corresponding liquid outlet head (2); S4, the outer cover (3) is sleeved on the outer side of the inner cover (1), and the second annular rib (62) is inserted into the supporting groove (32) from bottom to top; S5. Insert the pin cover (7) equipped with the sealing ring (74) into the second annular rib (62) from top to bottom, the sealing ring (74) passes over the annular convex rib (67), and the third annular rib (73) squeezes the limiting rib (63), so that the deformation sheet (51) expands outward, and the spring sheet (55) squeezes the pressing head, ensuring that the liquid outlet head (2) is located on one side of the outer wall of the inner cover (1) and can be closely attached to the inner wall of the rubber ring (4), and the outer cover (3) and the rubber ring (4) are integrally formed by secondary injection molding; S6, inverting and fixing the assembly formed in step S5 on a placement table (95), connecting the bottom sleeve (8) to the welding head (94) of the ultrasonic welding machine (9), and welding and fixing the bottom sleeve (8) and the inner cover (1) by the ultrasonic welding machine (9); S7. Complete the assembly.

10. The production process of a pressing head for a cosmetic bottle according to claim 9, characterized in that: The ultrasonic welding machine (9) comprises a workbench (91), a sliding cylinder (96) is provided on the upper part of the workbench (91), a placing table (95) is installed on the working end of the sliding cylinder (96), a first limiting groove (951) and a second limiting groove (952) are provided on the upper part of the placing table (95), the first limiting groove (951) is used to place the component formed in step S2, and the second limiting groove (952) is used to place the component formed in step S5, a case (92) is provided above the placing table (95), a welding rod (93) is provided at the lower part of the case (92), a welding head (94) capable of being raised and lowered is provided at the lower end of the welding rod (93), and the welding head (94) is used to weld the inner cover (1) and the inner liner (6) as well as weld the inner cover (1) and the bottom sleeve (8).

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