A mold for making an applicator

Abstract

The present invention discloses a mold for making an applicator, specifically relates to the field of applicators, including a lower mold, an upper mold is arranged at the top of the lower mold, a delivery tube is fixedly installed at the center of the top of the upper mold, knobs are arranged on the outer surfaces of the four sides of the lower mold, a first inner mold is fixedly installed at the top of the lower mold, a bottom column is fixedly installed at the center of the bottom end of the first inner mold, and a bottom groove is opened on the outer surface of the top of the lower mold below the first inner mold. The present invention sets a first inner mold, a second inner mold, a knob and a positioning rod. In the process of making the applicator, the upper mold and the lower mold are closed, the first inner mold is inserted into the second inner mold, and a cavity in the shape of an applicator is formed therebetween, and then raw materials are injected into the cavity for solidification. When the specifications of the applicator are changed, the first inner mold and the second inner mold need to be replaced, avoiding the replacement of the entire mold, saving a certain amount of manpower.

Description

Technical Field

[0001] The present invention relates to the field of applicators, and more particularly to a manufacturing mold for applicators. Background Art

[0002] The applicator is a device used to assist the drug application process. During the production of the applicator, the material needs to be introduced into the mold and taken out after being formed in the mold.

[0003] The specifications of the applicators made by the existing molds are fixed. When the specifications of the applicators change, the molds of corresponding specifications need to be replaced. The overall size of the mold is large, which is troublesome to replace, requires more manpower, and the cost of redesign is high. In addition, the existing molds for making applicators all adopt an upper and lower mold structure that can be disassembled up and down. In this structure, the raw materials are introduced into the cavity between the upper and lower molds through an external feed pipe. However, in actual operation, there is often a defect of adding excessive raw materials, and it is not easy to observe the timing of the raw material filling, so that the excess injected raw materials cannot be effectively discharged. In addition, the existing raw material suction structure is often an integrated structure with the injection structure. Therefore, it is easy to accidentally draw out the raw material injected into the original mold when sucking the excess raw material, thereby affecting the molding quality of the applicator. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a mold for making an applicator. By setting a first inner mold, a second inner mold, a knob and a positioning rod, during the process of making the applicator, the upper mold and the lower mold are closed, and the first inner mold is inserted into the second inner mold to form a cavity in the shape of an applicator. Then, raw materials are injected into the cavity for solidification. When the specifications of the applicator are changed, the first inner mold and the second inner mold need to be replaced, which avoids the need to replace the entire mold and saves a certain amount of manpower.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mold for making an applicator, comprising a lower mold, an upper mold is arranged at the top of the lower mold, a cylindrical delivery tube is fixedly installed at the center of the top of the upper mold, knobs are arranged on the outer surfaces around the lower mold, a first inner mold is fixedly installed at the top of the lower mold, a bottom column is fixedly installed at the center of the bottom end of the first inner mold, a bottom groove is provided on the outer surface of the top of the lower mold below the first inner mold, the bottom end of the bottom column matches the bottom groove, a side groove is provided on the inner wall of the bottom groove, an inner groove is provided at one end of the side groove inside the lower mold, and the lower mold The outer surface of the knob is provided with a limiting groove at one end of the inner groove, a catheter is provided inside the inner groove, a screw is provided inside the catheter, the catheter is threadedly connected to the screw, a clamping block is fixedly installed at one end of the screw, a clamping groove is provided on the outer surface of the base column, the clamping block matches the clamping groove, a limiting block is fixedly installed on the inner side of the knob, the limiting block matches the limiting groove, an inner rod is fixedly installed on the inner side of the limiting block, the inner rod is provided with the interior of the catheter, a spring is sleeved on the outer surface of the inner rod, a retaining ring is fixedly installed on one end of the inner side of the catheter, and the retaining ring is sleeved on the outer surface of the inner rod;

[0006] An electromagnet is fixedly installed on the top of the inner wall of the mounting tube, a connecting rod is arranged at the inner center of the delivery tube, a baffle is fixedly installed on the bottom end of the connecting rod, a plurality of through holes are opened on the outer surface of the baffle, a plurality of clamping columns are fixedly installed on the bottom end of the mounting tube, the clamping columns match the through holes, a bottom tube is fixedly installed on the bottom end of the delivery tube, a first one-way valve is arranged on the bottom tube, the delivery tube is connected with the second inner mold through the bottom tube, and the conducting direction of the first one-way valve is from the delivery tube toward the second inner mold;

[0007] A vertical guide rod is fixedly installed on both sides of the top of the lower mold, a first cavity is arranged in the guide rod body, a detachable thin-walled air bag is arranged at the top of the guide rod body, the upper mold is slidably connected with the guide rod, a bolt is arranged at the top of the upper mold, wherein the vertical line between the axis of the guide rod body and the axis of the conveying pipe does not intersect with the axis of the bolt, and an auxiliary hole inclined upward is arranged on the wall of the conveying pipe above the baffle, a second one-way valve is arranged on the orifice of the auxiliary hole, the second one-way valve is connected to a connecting pipe pre-buried in the upper mold body, and the connecting pipe is connected to the first cavity of the guide rod through a joint.

[0008] The guide rod body is made of stainless steel or hard plastic.

[0009] A second inner mold is arranged at the inner bottom end of the upper mold, and a positioning rod is fixedly installed at the top end of the second inner mold.

[0010] A positioning groove is provided on the outer surface of the upper die, one end of the positioning rod matches the positioning groove, and the bottom end of the bolt is threadedly connected to the positioning groove.

[0011] An inner frame is fixedly installed at the inner top end of the conveying pipe, and a mounting pipe is fixedly installed at the top end of the inner frame.

[0012] The electromagnet is embedded in the top end of the inner wall of the installation pipe by welding the lining plate.

[0013] The connecting rod is slidably connected to the inner frame, a stopper is fixedly installed on the top of the connecting rod, and the stopper is located at the inner bottom end of the mounting tube. The number of the through holes is six.

[0014] Technical effects and advantages of the present invention:

[0015] The present invention adopts two one-way valves and a detachable expansion airbag, as well as an embedded pre-buried connecting pipe and a specially designed multifunctional hollow guide rod, so that the raw material can be visually obtained in time after it is filled, and can ensure that the injected raw material remains fixed and the excess material is effectively discharged during the suction process.

[0016] The present invention is provided with a first inner mold, a second inner mold, a knob and a positioning rod. During the process of making the applicator, the upper mold and the lower mold are closed, and the first inner mold is inserted into the second inner mold to form a cavity in the shape of the applicator. Then, the raw material is injected into the cavity for solidification. When the specifications of the applicator are changed, the first inner mold and the second inner mold need to be replaced, avoiding the replacement of the entire mold, thereby saving a certain amount of manpower.

[0017] The present invention is provided with a conveying pipe, an inner frame, an electromagnet and a baffle. During the feeding process, the raw material will enter the conveying pipe and enter the bottom pipe through the through hole on the baffle. When the raw material fills the cavity, the electromagnet inside the mounting tube is started, and the baffle is attracted by the magnetic force of the electromagnet to drive the connecting rod to move upward, and the connecting rod drives the baffle to move upward. During the upward movement, the clamping column will be inserted into the corresponding through hole to close the through hole, and the remaining raw material in the conveying pipe will be pushed outward by the baffle, so as to avoid partial solidification of the raw material in the conveying pipe during the solidification process and avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the upper mold and the lower mold of the present invention in the open state.

[0020] Figure 3 It is a bottom view of the upper mold and the lower mold of the present invention in the opened state.

[0021] Figure 4 It is a cross-sectional view of the lower mold of the present invention.

[0022] Figure 5 It is a partial cross-sectional view of the catheter of the present invention.

[0023] Figure 6 It is an exploded view of the upper mold of the present invention.

[0024] Figure 7 It is a cross-sectional view of the delivery pipe of the present invention.

[0025] Figure 8 It is a schematic diagram of the installation structure of the connecting rod and the installation pipe of the present invention.

[0026] The accompanying drawings are marked as follows: 1. lower mold; 11. knob; 111. limit block; 112. inner rod; 113. spring; 114. retaining ring; 12. first inner mold; 13. bottom column; 131. slot; 14. bottom slot; 15. side slot; 16. inner slot; 17. limit slot; 18. guide tube; 19. screw; 191. block; 2. upper mold; 21. guide rod; 22. bolt; 23. second inner mold; 24. positioning rod; 25. positioning slot; 3. conveying pipe; 31. inner frame; 32. mounting pipe; 33. electromagnet; 34. connecting rod; 35. block; 36. clamping column; 37. baffle; 38. through hole; 39. bottom tube. DETAILED DESCRIPTION

[0027] 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.

[0028] according to Figure 1-6The mold for making an applicator shown in the figure comprises a lower mold 1, an upper mold 2 is arranged at the top of the lower mold 1, a cylindrical delivery tube 3 is fixedly installed at the center of the top of the upper mold 2, a knob 11 is arranged on the outer surface of the four sides of the lower mold 1, a first inner mold 12 is fixedly installed at the top of the lower mold 1, a bottom column 13 is fixedly installed at the center of the bottom end of the first inner mold 12, a bottom groove 14 is opened on the outer surface of the top of the lower mold 1 below the first inner mold 12, the bottom end of the bottom column 13 matches the bottom groove 14, a side groove 15 is opened on the inner wall of the bottom groove 14, an inner groove 16 is opened at one end of the side groove 15 inside the lower mold 1, a limiting groove 17 is opened on the outer surface of the lower mold 1 at one end of the inner groove 16, and the inner groove 1 6 is provided with a conduit 18 inside, a screw 19 is provided inside the conduit 18, the conduit 18 is threadedly connected with the screw 19, a block 191 is fixedly installed at one end of the screw 19, a slot 131 is provided on the outer surface of the base column 13, the block 191 matches the slot 131, a limit block 111 is fixedly installed on the inner side of the knob 11, the limit block 111 matches the limit slot 17, an inner rod 112 is fixedly installed on the inner side of the limit block 111, the inner rod 112 is provided with the inside of the conduit 18, a spring 113 is sleeved on the outer surface of the inner rod 112, a retaining ring 114 is fixedly installed on one end of the inner side of the conduit 18, and the retaining ring 114 is sleeved on the outer surface of the inner rod 112;

[0029] An electromagnet 33 is fixedly installed on the top of the inner wall of the mounting tube 32, a connecting rod 34 is arranged at the inner center of the delivery tube 3, a baffle 37 is fixedly installed on the bottom end of the connecting rod 34, and a plurality of through holes 38 are opened on the outer surface of the baffle 37, a plurality of clamping columns 36 are fixedly installed on the bottom end of the mounting tube 32, and the clamping columns 36 match the through holes 38, a bottom tube 39 is fixedly installed on the bottom end of the delivery tube 3, and a first one-way valve is arranged on the bottom tube 39, and the delivery tube 3 is connected with the second inner mold 23 through the bottom tube 39, and the conducting direction of the first one-way valve is from the delivery tube 3 toward the second inner mold 23;

[0030] A vertical guide rod 21 is fixedly installed on both sides of the top of the lower mold 1, and a first cavity is arranged in the rod body of the guide rod 21, and a detachable thin-walled air bag is arranged at the top of the rod body of the guide rod 21. The upper mold 2 is slidably connected with the guide rod 21, and a bolt 22 is arranged at the top of the upper mold 2, wherein a vertical line between the rod axis of the guide rod 21 and the axis of the conveying pipe 3 does not intersect with the axis of the bolt 22, and an auxiliary hole inclined upward is arranged on the wall of the conveying pipe 3 above the baffle 37, and a second one-way valve is arranged on the orifice of the auxiliary hole, and the second one-way valve is connected to a connecting pipe pre-buried in the body of the upper mold 2, and the connecting pipe is connected to the first cavity of the guide rod 21 through a joint.

[0031] Guide rods 21 are fixedly installed on both sides of the top of the lower mold 1, the upper mold 2 is slidably connected to the guide rods 21, a bolt 22 is provided at the top of the upper mold 2, a second inner mold 23 is provided at the inner bottom end of the upper mold 2, a positioning rod 24 is fixedly installed at the top of the second inner mold 23, a positioning groove 25 is provided on the outer surface of the upper mold 2, one end of the positioning rod 24 matches the positioning groove 25, and the bottom end of the bolt 22 is threadedly connected to the positioning groove 25.

[0032] The specific implementation method is as follows: during the process of making the applicator, the upper mold 2 and the lower mold 1 are closed, and the first inner mold 12 is inserted into the second inner mold 23 to form a cavity in the shape of an applicator, and then the raw material is injected into the cavity for solidification. When the specifications of the applicator are changed, the first inner mold 12 and the second inner mold 23 need to be replaced, avoiding the need to replace the entire mold, saving a certain amount of manpower. When replacing the first inner mold 12, first pull the knob 11 outward to move the limit block 111 from the limit groove 17. The knob 11 is disengaged, and the knob 11 is rotated to drive the guide tube 18 to rotate. The guide tube 18 is threadedly connected with the screw 19, and the block 191 at one end is driven by the screw 19 to disengage from the card slot 131 of the bottom column, so that the block 191 enters the side groove 15, and the limit of the bottom column 13 is released. Then the first inner mold 12 is removed upward. When installing the first inner mold 12, the bottom column 13 at the bottom end of the first inner mold 12 is inserted into the bottom groove 14, and then the block 191 is driven to be inserted into the corresponding When the knob 11 is pulled outward, the inner rod 112 is driven to slide outward along the retaining ring 114 to squeeze the spring 113. When the first inner mold 12 is installed, the knob 11 is released, and the spring 113 pulls the knob 11 inward through the inner rod 112, so that the limit block 111 is inserted into the limit groove 17 to limit the knob 11. When the second inner mold 23 is replaced, the bolt 22 on the upper mold 2 is removed with a tool to disengage the bolt 22 from the positioning rod 24 to release the first inner mold 23. The second inner mold 23 is limited, and then the upper mold 2 is moved upward along the guide rod 21 through the hydraulic mechanism, so that the second inner mold 23 is separated from the upper mold 2, and the second inner mold 23 is taken out and replaced. When installing the second inner mold 23, the second inner mold 23 is placed on the first inner mold 12, and then the upper mold 2 is lowered. The second inner mold 23 will enter the upper mold 2 and be inserted into the positioning groove 25 for positioning through the positioning rod 24. After positioning, the bolt 22 is installed and connected to the positioning rod 24, so as to fix the second inner mold 23.

[0033] according to Figure 7-8A mold for making an applicator is shown, wherein an inner frame 31 is fixedly installed on the inner top end of the delivery tube 3, a mounting tube 32 is fixedly installed on the top end of the inner frame 31, an electromagnet 33 is fixedly installed on the inner wall top end of the mounting tube 32, a connecting rod 34 is provided at the inner center of the delivery tube 3, the connecting rod 34 is slidably connected to the inner frame 31, a stopper 35 is fixedly installed on the top end of the connecting rod 34, the stopper 35 is located at the inner bottom end of the mounting tube 32, a stopper 37 is fixedly installed on the bottom end of the clamping column 36, a plurality of through holes 38 are opened on the outer surface of the stopper 37, a plurality of clamping columns 36 are fixedly installed on the bottom end of the mounting tube 32, the clamping columns 36 match the through holes 38, a bottom tube 39 is fixedly installed on the bottom end of the delivery tube 3, and the delivery tube 3 is connected to the second inner mold 23 through the bottom tube 39;

[0034] The specific implementation method is as follows: during the feeding process, the raw material will enter the conveying pipe 3, enter the bottom pipe 39 through the through hole 38 on the baffle 37, and then enter the cavity between the first inner mold 12 and the second inner mold 23 from the bottom pipe 39 for solidification. When the raw material fills the cavity, the electromagnet 33 inside the mounting tube 32 is started, and the baffle 35 is attracted by the magnetic force of the electromagnet 33, which will drive the connecting rod 34 to move upward, and the connecting rod 34 will drive the baffle 37 to move upward. During the upward movement, the clamping column 36 will be inserted into the cavity. In the corresponding through hole 38, the through hole 38 is closed, and the remaining raw material in the conveying tube 3 is pushed outward by the baffle 37 to avoid partial solidification of the raw material in the conveying tube 3 during the solidification process, and to avoid blockage. When the applicator is taken out after solidification, the electromagnet 33 is closed, and the baffle 37 will slide downward by gravity. When the baffle 37 slides to the bottom end of the conveying tube 3, the card column 36 is disengaged from the through hole 38 of the baffle 35, and the through hole 38 of the baffle 37 is opened to continue the raw material conveying, and the cycle is repeated.

[0035] Working principle of the present invention:

[0036] Refer to the instruction manual Figure 1-6When replacing the first inner mold 12, first pull the knob 11 outward to disengage the limit block 111 from the limit groove 17, then rotate the knob 11 to drive the guide tube 18 to rotate, and the block 191 at one end will be driven to disengage from the groove 131 of the bottom column through the screw 19, so that the block 191 enters the side groove 15, and then the first inner mold 12 is removed upward. When installing the first inner mold 12, insert the bottom column 13 at the bottom end of the first inner mold 12 into the bottom groove 14, and then drive the block 191 to be inserted into the corresponding groove 131 by rotating the guide tube 18. When the first inner mold 12 is installed, release the knob 11, and the spring 113 will pull the knob 11 inward through the inner rod 112 to make the limit The block 111 is inserted into the limiting groove 17 to limit the knob 11. When replacing the second inner mold 23, a tool is used to remove the bolt 22 on the upper mold 2 to disengage the bolt 22 from the positioning rod 24, and then the upper mold 2 is moved upward along the guide rod 21 by the hydraulic mechanism to disengage the second inner mold 23 from the upper mold 2. After the second inner mold 23 is removed, it is replaced. When installing the second inner mold 23, the second inner mold 23 is placed on the first inner mold 12, and then the upper mold 2 is lowered. The second inner mold 23 will enter the upper mold 2 and be inserted into the positioning groove 25 by the positioning rod 24 for positioning. After positioning is completed, the bolt 22 is installed and connected to the positioning rod 24, thereby fixing the second inner mold 23.

[0037] Refer to the instruction manual Figure 7-8 During the feeding process, the raw material will enter the conveying pipe 3, enter the bottom pipe 39 through the through hole 38 on the baffle 37, and then enter the first one-way valve and the cavity between the first inner mold 12 and the second inner mold 23 from the bottom pipe 39 to solidify. When the raw material fills the cavity, it gathers in the conveying pipe 3 above the baffle 37, thereby increasing the pressure in the pipe, which in turn causes the second one-way valve to be turned on, driving the gas and part of the raw material to enter the first cavity, thereby compressing the volume of the first cavity and causing the expansion airbag to expand. At this time, the obvious visual change of the thin wall expansion activates the installation pipe 32 The internal electromagnet 33 and the baffle 35 are attracted by the magnetic force of the electromagnet 33, which will drive the connecting rod 34 to move upward, and the connecting rod 34 will drive the baffle 37 to move upward, and the remaining raw material in the delivery tube 3 will be pushed outward by the baffle 37. During the pushing process, the conduction direction of the first one-way valve is only allowed from the delivery tube 3 to the second inner mold 23. When the applicator is solidified and taken out, the electromagnet 33 is turned off, and the baffle 37 will slide downward by gravity to continue to transport the raw material. This cycle is repeated. After the mold is used for a long time, the expansion bag can be regularly disassembled to clean the guide rod 21.

[0038] Therefore, the present invention adopts two one-way valves and a detachable expansion airbag, as well as an embedded pre-buried connecting pipe and a specially designed multifunctional hollow guide rod so that the raw material can be visually obtained in time after it is filled, and can ensure that the injected raw material remains fixed and the excess material is effectively discharged during the suction process.

[0039] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0040] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0041] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold for making an applicator, comprising a lower mold (1), characterized in that: The top of the lower mold (1) is provided with an upper mold (2), a cylindrical conveying tube (3) is fixedly installed at the center of the top of the upper mold (2), knobs (11) are provided on the outer surface of the four sides of the lower mold (1), a first inner mold (12) is fixedly installed at the top of the lower mold (1), a bottom column (13) is fixedly installed at the center of the bottom end of the first inner mold (12), a bottom groove (14) is provided on the outer surface of the top of the lower mold (1) below the first inner mold (12), the bottom end of the bottom column (13) matches the bottom groove (14), a side groove (15) is provided on the inner wall of the bottom groove (14), an inner groove (16) is provided at one end of the side groove (15) inside the lower mold (1), a limiting groove (17) is provided on the outer surface of the lower mold (1) at one end of the inner groove (16), and a guide tube (18) is provided inside the inner groove (16). ), a screw rod (19) is arranged inside the conduit (18), the conduit (18) and the screw rod (19) are threadedly connected, a clamping block (191) is fixedly installed on one end of the screw rod (19), a clamping groove (131) is opened on the outer surface of the base column (13), the clamping block (191) matches the clamping groove (131), a limit block (111) is fixedly installed on the inner side of the knob (11), the limit block (111) matches the limit groove (17), an inner rod (112) is fixedly installed on the inner side of the limit block (111), the inner rod (112) is arranged inside the conduit (18), a spring (113) is sleeved on the outer surface of the inner rod (112), a retaining ring (114) is fixedly installed on one end of the inner side of the conduit (18), the retaining ring (114) is sleeved on the outer surface of the inner rod (112); An inner frame (31) is fixedly mounted on the top of the inner frame (31), a mounting tube (32) is fixedly mounted on the top of the inner frame (31), an electromagnet (33) is fixedly mounted on the top of the inner wall of the mounting tube (32), a connecting rod (34) is provided at the center of the inner part of the conveying tube (3), a baffle (37) is fixedly mounted on the bottom end of the connecting rod (34), a plurality of through holes (38) are formed on the outer surface of the baffle (37), a plurality of clamping columns (36) are fixedly mounted on the bottom end of the mounting tube (32), the clamping columns (34) are fixedly mounted on the bottom end of the mounting tube (32), and the clamping columns (36) are fixedly mounted on the bottom end of the mounting tube (32). 36) matches with the through hole (38), a bottom tube (39) is fixedly mounted on the bottom end of the delivery tube (3), a first one-way valve is arranged on the bottom tube (39), the delivery tube (3) is connected with the second inner mold (23) through the bottom tube (39), the conduction direction of the first one-way valve is from the delivery tube (3) toward the second inner mold (23), the connecting rod (34) is slidably connected with the inner frame (31), a stopper (35) is fixedly mounted on the top end of the connecting rod (34), and the stopper (35) is located at the inner bottom end of the mounting tube (32); A vertical guide rod (21) is fixedly mounted on both sides of the top of the lower mold (1), a first cavity is arranged in the rod body of the guide rod (21), a detachable thin-walled air bag is arranged at the top of the rod body of the guide rod (21), the upper mold (2) is slidably connected to the guide rod (21), a bolt (22) is arranged at the top of the upper mold (2), wherein a vertical line between the rod axis of the guide rod (21) and the axis of the delivery pipe (3) does not intersect with the axis of the bolt (22), an auxiliary hole inclined upward is arranged on the wall of the delivery pipe (3) above the baffle (37), a second one-way valve is arranged on the orifice of the auxiliary hole, the second one-way valve is connected to a connecting pipe pre-buried in the body of the upper mold (2), and the connecting pipe is connected to the first cavity of the guide rod (21) through a joint.

2. A mold for making an applicator according to claim 1, characterized in that: The guide rod (21) is made of stainless steel or hard plastic.

3. A mold for making an applicator according to claim 2, characterized in that: A second inner mold (23) is provided at the inner bottom end of the upper mold (2), and a positioning rod (24) is fixedly mounted at the top end of the second inner mold (23).

4. A mold for making an applicator according to claim 3, characterized in that: A positioning groove (25) is provided on the outer surface of the upper mold (2), one end of the positioning rod (24) matches the positioning groove (25), and the bottom end of the bolt (22) is threadedly connected to the positioning groove (25).

5. The mold for making an applicator according to claim 1, characterized in that: The electromagnet (33) is embedded in the top end of the inner wall of the mounting tube (32) by welding a lining plate.

6. The mold for making an applicator according to claim 1, characterized in that: The number of the through holes (38) is six.

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