Injection mold and process for processing PVC (Polyvinyl Chloride) and eva (Ethylene Vinyl Alcohol) fragrant buttons

Abstract

The invention relates to the technical field of injection molds, in particular to an injection mold and process for processing PVC and eva incense buttons, the injection mold comprises a first mold and a second mold, a preliminary separation mechanism is arranged below the first mold and the second mold, and a secondary separation mechanism, a separation mechanism and a pouring mechanism are arranged between the first mold and the second mold; the primary separation mechanism comprises a bottom plate, a sliding groove is formed in the top end of the bottom plate, a two-way threaded rod is rotationally connected to the inner wall of the sliding groove, a motor is fixedly connected to one end of the bottom plate, the driving end of the motor is fixedly connected with the two-way threaded rod, and sliding plates which synchronously move are in threaded connection to the two sides of the outer wall of the two-way threaded rod; according to the petal-shaped fragrant button mold, laces of petal-shaped fragrant buttons can be slowly separated, so that the situation that the laces are broken and damaged during mold opening is prevented, the integrity of the petal-shaped fragrant buttons can be improved, and then the processing quality of the petal-shaped fragrant buttons is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold and a process for processing PVC and EVA fragrance buttons. Background Art

[0002] When making PVC scented buttons, it is necessary to first mix polyvinyl chloride resin powder and molding agent into an emulsion, then add color paste for coloring, and stir evenly again, then add special flavor, and stir evenly again, and evacuate the air to expel bubbles, then inject the treated liquid into a special injection mold, and then heat the entire mold with material on a baking table, with the upper layer of the baking table at 180 degrees and the lower layer at 100 degrees, and then cool the heated mold in a water tank, and then demould the cooled mold to obtain the scented button;

[0003] When making EVA scented buttons, EVA plastic particles and flavors are made into scented particles through special equipment and mixed with plastic auxiliary particles including buttons for adjusting hardness and color. The fragrance-free particles are mixed with flavors and odorless EVA particles through micro-heating and stirring technology through fragrance mixing equipment to allow the flavor to be fully absorbed by the EVA particles, thus making scented particles. The mixed particles are then sent to the injection molding bin for melting and stirring, and then the liquefied material is flowed into the injection mold to be cooled and formed to obtain the scented buttons.

[0004] In the prior art, when the petal-shaped fragrance button is injection molded, the two molds are generally separated directly to separate the petal-shaped fragrance button inside. Since the liquid still has a certain elasticity just after the injection molding, the lace part may adhere to the inner wall of the mold during the mold separation process, so that tearing may occur during separation, resulting in damage to the petal-shaped fragrance button, affecting the integrity of the petal-shaped fragrance button and the injection molding quality;

[0005] In addition, the height of the liquid inside cannot be seen during the injection molding process, so when pouring liquid, you can only know that the liquid is full by overflowing, which will cause liquid waste, and after cooling, it will cause too much scraps to be produced, and the integrity of the product cannot be guaranteed. Therefore, subsequent processing is required, which affects the efficiency of the injection molding process. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the background technology, and to propose an injection mold and process for processing PVC and EVA fragrance buttons.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: an injection mold for processing PVC and EVA fragrance buttons, comprising a mold one and a mold two, a preliminary separation mechanism is arranged below the mold one and the mold two, and a secondary separation mechanism, a disengagement mechanism and a pouring mechanism are arranged between the mold one and the mold two;

[0008] The preliminary separation mechanism comprises a bottom plate, a slide groove is provided at the top of the bottom plate, a bidirectional threaded rod is rotatably connected to the inner wall of the slide groove, a motor is fixedly connected to one end of the bottom plate, a driving end of the motor is fixedly connected to the bidirectional threaded rod, both sides of the outer wall of the bidirectional threaded rod are threadedly connected to synchronously moving slide plates, two slide plates are respectively fixedly connected to mold one and mold two, and the slide plates move in a direction away from each other to separate mold one and mold two and expose the petal-shaped incense buttons inside;

[0009] The re-separation mechanism includes vertical plates fixedly connected to both sides of the top of the bottom plate, and two vertical plates are fixedly connected to two electric push rods at one end close to each other. The telescopic ends of the two groups of electric push rods are respectively fixedly connected to circular plates and circular rings, and the ends of the circular plates and circular rings close to each other are respectively fixedly connected to multiple circular columns and penetrate mold one and mold two. The two groups of electric push rods move the circular plates and circular rings in a direction away from each other, and move the circular columns to slowly separate the circular columns and the petal-shaped incense buttons.

[0010] Preferably, the re-separation mechanism also includes a circular groove opened on the mold one, and the circular groove is in contact with the circular plate. It also includes an annular groove opened on the mold two, and the annular groove is in contact with the circular ring. The outer sides of the corresponding circular columns on the mold one and the mold two are connected to the limiting grooves, and the inner walls of the plurality of limiting grooves are provided with limiting rings, and the plurality of limiting rings and the plurality of circular columns are respectively fixedly connected.

[0011] Preferably, a separation column is fixedly connected to the middle part of one end of the circular plate close to the circular ring and passes through mold one, and ejection grooves are provided on both sides of one end of mold two close to mold one, and the two ejection grooves are connected through holes and annular grooves, and ejection columns are provided on the inner walls of the two ejection grooves, and the two ejection columns are fixedly connected by a square rod and a circular column.

[0012] Preferably, the disengagement mechanism includes a model groove opened in the middle of one end of mold 2 near mold 1, telescopic grooves are opened at both ends of the model groove, model columns are arranged on the inner walls of the two telescopic grooves, placement grooves are opened on both sides of one end of the two telescopic grooves close to each other, and springs are fixedly connected between the two groups of placement grooves and the two model columns.

[0013] Preferably, the disengagement mechanism further comprises a groove formed at the other end of the second mold, square grooves are formed on both sides of one end of the groove, and telescopic columns are fixedly connected to the middle of one end of the two model columns away from each other and extend into the square groove.

[0014] Preferably, the inner walls of the two square grooves are each provided with a square column, one end of the two square columns is fixedly connected to a circular plate, the outer side of the inner wall of the groove is fixedly connected to a fixed plate, the end of the fixed plate close to the circular plate is fixedly connected to a hydraulic rod, and the telescopic end of the hydraulic rod is fixedly connected to the circular plate.

[0015] Preferably, the pouring mechanism includes an arc-shaped notch opened at the top of the mold 1 and the top of the mold 2, the two arc-shaped notches form a circular pouring port, and the bottoms of the two arc-shaped notches are connected to a blocking notch.

[0016] Preferably, the inner walls of the two arc-shaped notches are fixedly connected with fixed blocks, the two fixed blocks are slidably connected with an arc tube at one end close to each other, the bottom ends of the two arc tubes are fixedly connected with floating blocks, and the two arc tubes are fixedly connected with indicating blocks at one end away from each other.

[0017] An injection molding process for processing PVC and EVA scented buttons comprises the following steps:

[0018] Step 1: inject liquid into the model cavity between mold 1 and mold 2 through the pouring mechanism, and remind the staff through the pouring mechanism to prevent pouring too much liquid and cool the liquid;

[0019] Step 2: After cooling, the petal-shaped fragrance button is released from the limit through the disengagement mechanism, and then the internal petal-shaped fragrance button is exposed through the preliminary separation mechanism. After that, the circular column and the petal-shaped fragrance button are slowly separated through the secondary separation mechanism to obtain the petal-shaped fragrance button.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Through the coordinated setting of the preliminary separation mechanism and the secondary separation mechanism, the lace of the petal-shaped incense button can be slowly separated, thereby preventing the lace from being broken and damaged when the mold is opened, thereby ensuring the integrity of the petal-shaped incense button and further improving the processing quality of the petal-shaped incense button;

[0022] 2. Through the setting of the separation mechanism, the holes on the petal-shaped incense button can be injected at the same time during injection molding, thereby avoiding the subsequent drilling operation and improving the overall processing efficiency;

[0023] 3. Through the setting of the pouring mechanism, the amount of injected liquid can be controlled during the injection of liquid to prevent excessive overflow of the injected liquid and avoid waste of liquid. It can also reduce the generation of excess scraps, ensure the integrity of the product, and reduce subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is an overall schematic diagram of an injection mold and process for processing PVC and EVA scented buttons;

[0025] Figure 2 This is a separation diagram of mold 1 and mold 2 of an injection mold and process for processing PVC and EVA scented buttons of the present invention;

[0026] Figure 3 This is a top view of another angle of view of a mold 1 and a mold 2 separated from an injection mold and a process for processing PVC and EVA scented buttons of the present invention;

[0027] Figure 4 This is a cross-sectional view of a mold 1 and a mold 2 separated from each other in an injection mold and a process for processing PVC and EVA scented buttons of the present invention;

[0028] Figure 5 The present invention is an injection mold and process for processing PVC and EVA fragrance buttons Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a vertical sectional view of the second mold of an injection mold and a process for processing PVC and EVA scented buttons of the present invention;

[0030] Figure 7 A cross-sectional view of an injection mold and a process for processing PVC and EVA scented buttons of the present invention;

[0031] Figure 8 The present invention is an injection mold and process for processing PVC and EVA fragrance buttons Figure 7 Enlarged view of point B in the middle;

[0032] Fig. 9 This is a sectional view of the structure of the second part of the mold of an injection mold and a process for processing PVC and EVA scented buttons of the present invention;

[0033] Fig.10 The present invention is an injection mold for processing PVC and EVA fragrance buttons and a mold second sectional view of the partial structure of the process.

[0034] In the figure: 1. mold one; 2. mold two; 3. bottom plate; 4. slide groove; 5. two-way threaded rod; 6. motor; 7. slide plate; 8. vertical plate; 9. electric push rod; 10. round plate; 11. round ring; 12. round column; 13. round groove; 14. annular groove; 15. limit groove; 16. limit ring; 17. separation column; 18. ejector groove; 19. hole; 20. ejector column; 21. square rod; 22. model groove; 23. telescopic groove; 24. model column; 25. placement groove; 26. spring; 27. groove; 28. square groove; 29. ​​telescopic column; 30. square column; 31. round plate; 32. fixed plate; 33. hydraulic rod; 34. arc notch; 35. blocking notch; 36. fixed block; 37. arc tube; 38. floating block; 39. indicator block. DETAILED DESCRIPTION

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0036] like Figure 1-Figure 10 The injection mold for processing PVC and EVA fragrance buttons shown in the figure comprises a mold 1 and a mold 2, wherein a preliminary separation mechanism is arranged below the mold 1 and the mold 2, and a secondary separation mechanism, a separation mechanism and a pouring mechanism are arranged between the mold 1 and the mold 2. The preliminary separation mechanism can be used to initially complete the separation operation, so that the petal-shaped fragrance buttons are exposed, and then the petal-shaped fragrance buttons are separated by the secondary separation mechanism. The separation mechanism can be used to directly leave a circular hole during injection molding, thereby avoiding subsequent punching operations. The pouring mechanism can be used to control the injected liquid, thereby preventing excessive injection of liquid and avoiding excessive generation of scraps.

[0037] like Figure 1 As shown, the preliminary separation mechanism includes a bottom plate 3, a slide groove 4 is provided at the top of the bottom plate 3, a bidirectional threaded rod 5 is rotatably connected to the inner wall of the slide groove 4, a motor 6 is fixedly connected to one end of the bottom plate 3, a driving end of the motor 6 is fixedly connected to the bidirectional threaded rod 5, both sides of the outer wall of the bidirectional threaded rod 5 are threadedly connected to a synchronously moving slide plate 7, the two slide plates 7 are respectively fixedly connected to the mold 1 1 and the mold 2 2, the slide plates 7 move in a direction away from each other and separate the mold 1 1 and the mold 2 2 so that the petal-shaped incense button inside is exposed, and the material of the petal-shaped incense button is PVC or EVA;

[0038] like Figure 1-Figure 4As shown, the re-separation mechanism includes vertical plates 8 fixedly connected to both sides of the top of the bottom plate 3, and two vertical plates 8 are fixedly connected to two electric push rods 9 at one end close to each other. The telescopic ends of the two groups of electric push rods 9 are respectively fixedly connected to circular plates 10 and circular rings 11, and the ends of the circular plates 10 and circular rings 11 close to each other are respectively fixedly connected to multiple circular columns 12 and penetrate mold 1 1 and mold 2 2. The two groups of electric push rods 9 move the circular plates 10 and circular rings 11 in a direction away from each other, and move the circular columns 12 to slowly separate the circular columns 12 and the petal-shaped incense buttons, and the electric push rods 9 are controlled by a synchronous controller to make them telescopically move synchronously.

[0039] like Figure 2 , Figure 4 As shown, the re-separation mechanism also includes a circular groove 13 provided on the mold 1, the circular groove 13 is in contact with the circular plate 10, and also includes an annular groove 14 provided on the mold 2, the annular groove 14 is in contact with the circular ring 11, and the outer sides of the corresponding circular columns 12 on the mold 1 and the mold 2 are connected to the limiting groove 15, and the inner walls of the plurality of limiting grooves 15 are provided with limiting rings 16, and the plurality of limiting rings 16 are respectively fixedly connected to the plurality of circular columns 12. The circular plate 10 is limited by the circular groove 13, the circular ring 11 is limited by the annular groove 14, and the limiting ring 16 is limited by the limiting groove 15, so that the cavity between the mold 1 and the mold 2 is in a complete state.

[0040] like Figure 5 , Figure 6 , Figure 7 As shown, a separation column 17 is fixedly connected to the middle of one end of the circular plate 10 near the circular ring 11 and penetrates the mold 1, and ejection grooves 18 are opened on both sides of the end of the mold 2 near the mold 1, and the two ejection grooves 18 are connected to the annular groove 14 through the hole 19, and the inner walls of the two ejection grooves 18 are provided with ejection columns 20, and the two ejection columns 20 are fixedly connected to the circular column 12 through the square rod 21. The separation column 17 and the ejection column 20 can contact the middle of the petal-shaped incense button, so that it is fully separated, and the square rod 21 can move the ejection column 20 synchronously.

[0041] like Figure 5 , Figure 6 , Fig.10As shown, the disengagement mechanism includes a model slot 22 provided in the middle of one end of the mold 2 near the mold 1, and telescopic slots 23 are provided at both ends of the model slot 22. Model columns 24 are provided on the inner walls of the two telescopic slots 23. Placement slots 25 are provided on both sides of one end of the two telescopic slots 23 near each other, and springs 26 are fixedly connected between the two groups of placement slots 25 and the two model columns 24. The injection molding of the petal-shaped fragrance button tail column is completed through the model slot 22, and the circular hole can be formed in the process of injection molding with the cooperation of the model column 24. The telescopic slot 23 is used to place the model column 24, and the placement slot 25 is used to place the spring 26, and the elastic action of the spring 26 can make the model column 24 do a reset movement.

[0042] like Figure 5 , Fig. 9 , Fig.10 As shown, the disengagement mechanism also includes a groove 27 opened at the other end of the mold 2, and square grooves 28 are opened on both sides of one end of the groove 27. The middle parts of the two model columns 24 away from each other are fixedly connected with telescopic columns 29 and extend into the square groove 28. The telescopic column 29 is provided with an inclined surface on one side close to the groove 27 to facilitate the subsequent extrusion operation.

[0043] like Fig. 9 , Fig.10 As shown, the inner walls of the two square grooves 28 are both provided with square columns 30, one end of the two square columns 30 is fixedly connected to a circular plate 31, the outer side of the inner wall of the groove 27 is fixedly connected to a fixed plate 32, one end of the fixed plate 32 close to the circular plate 31 is fixedly connected to a hydraulic rod 33, and the telescopic end of the hydraulic rod 33 is fixedly connected to the circular plate 31. The square column 30 moves in the square groove 28, and the circular plate 31 moves in the groove 27 at the same time, the circular plate 31 is limited by the groove 27, and the circular plate 31 is moved by the hydraulic rod 33.

[0044] like Figure 8 As shown, the pouring mechanism includes an arc-shaped notch 34 opened at the top of the mold 1 and the mold 2, and the two arc-shaped notches 34 form a circular pouring port. The bottoms of the two arc-shaped notches 34 are connected with a blocking notch 35. The inner walls of the two arc-shaped notches 34 are fixedly connected with a fixing block 36. The two fixing blocks 36 are slidably connected with an arc-shaped tube 37 at one end close to each other. The bottom ends of the two arc-shaped tubes 37 are fixedly connected with a floating block 38. The ends of the two arc-shaped tubes 37 away from each other are fixedly connected with an indicating block 39. The floating block 38 is blocked by the blocking notch 35, and when the floating block 38 is completely in contact with the blocking notch 35, the liquid just completely fills the entire injection cavity, completing the injection operation, and the indicating block 39 can be used to indicate the amount of liquid, so as to prevent excessive liquid from being injected, reduce the generation of scraps, and reduce subsequent processing operations.

[0045] An injection molding process for processing PVC and EVA scented buttons comprises the following steps:

[0046] Step 1: inject liquid into the model cavity between mold 1 and mold 2 through the pouring mechanism, and remind the staff through the pouring mechanism to prevent pouring too much liquid and cool the liquid;

[0047] Step 2: After cooling, the petal-shaped fragrance button is released from the limit through the disengagement mechanism, and then the internal petal-shaped fragrance button is exposed through the preliminary separation mechanism. After that, the circular column 12 and the petal-shaped fragrance button are slowly separated through the secondary separation mechanism to obtain the petal-shaped fragrance button.

[0048] Working principle: First, mold 1 and mold 2 are combined together, and then liquid is injected into the cavity between mold 1 and mold 2 through arc tube 37. During the injection process, the liquid gradually fills the entire cavity, so it contacts the floating block 38 and makes the floating block 38 float up, until the floating block 38 and the blocking gap 35 are fully engaged. At this time, the indicator block 39 extends out of the range of the arc gap 34, so that the staff can stop pouring the liquid, thereby avoiding the overflow of the liquid, saving the liquid, reducing the generation of scraps, improving the integrity of the product, and reducing the grinding operation;

[0049] Furthermore, the hydraulic rod 33 is started to move the circular plate 31, thereby moving the square column 30, and releasing the limit of the telescopic column 29. At this time, the model column 24 is moved and stored in the telescopic groove 23 through the elastic return effect of the spring 26, so that the design of the circular hole can be completed during injection molding, avoiding the subsequent punching operation and improving the overall processing efficiency.

[0050] Furthermore, after the liquid is cooled, the motor 6 is started to rotate the bidirectional threaded rod 5. The thread effect of the bidirectional threaded rod 5 can move the slide plate 7 to both sides, so that the mold 1 1 and the mold 2 2 can be moved to both sides and the petal-shaped incense button is exposed. At this time, the electric push rod 9 is started to move the circular plate 10 and the circular ring 11 respectively, and then the circular column 12, the limiting ring 16, the square rod 21, the ejection column 20 and the separation column 17 are moved, and they are gradually separated from the petal-shaped incense button, so as to prevent the lace from being broken and damaged when opening the mold, ensure the integrity of the petal-shaped incense button, and then improve the injection molding quality of the petal-shaped incense button.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An injection mold for processing PVC and EVA scented buttons, comprising a mold 1 (1) and a mold 2 (2), characterized in that: A preliminary separation mechanism is provided below the mold 1 (1) and the mold 2 (2), and a secondary separation mechanism, a disengagement mechanism and a pouring mechanism are provided between the mold 1 (1) and the mold 2 (2); The preliminary separation mechanism comprises a bottom plate (3), a slide groove (4) is provided at the top of the bottom plate (3), a bidirectional threaded rod (5) is rotatably connected to the inner wall of the slide groove (4), a motor (6) is fixedly connected to one end of the bottom plate (3), a driving end of the motor (6) is fixedly connected to the bidirectional threaded rod (5), both sides of the outer wall of the bidirectional threaded rod (5) are threadedly connected to slide plates (7) that move synchronously, the two slide plates (7) are respectively fixedly connected to the mold one (1) and the mold two (2), the slide plates (7) move in a direction away from each other to separate the mold one (1) and the mold two (2) and expose the petal-shaped incense buttons inside; The re-separation mechanism comprises vertical plates (8) fixedly connected to both sides of the top of the bottom plate (3); two vertical plates (8) are fixedly connected to two electric push rods (9) at one end close to each other; the telescopic ends of the two groups of electric push rods (9) are respectively fixedly connected to a circular plate (10) and a circular ring (11); the ends of the circular plates (10) and the circular rings (11) are respectively fixedly connected to a plurality of circular columns (12) and penetrate the mold 1 (1) and the mold 2 (2); the two groups of electric push rods (9) move the circular plates (10) and the circular rings (11) in a direction away from each other, and move the circular columns (12) so that the circular columns (12) and the petal-shaped incense buttons are slowly separated.

2. The injection mold for processing PVC and EVA fragrance buttons according to claim 1, characterized in that: The re-separation mechanism also includes a circular groove (13) provided on the mold one (1), the circular groove (13) and the circular plate (10) being in contact with each other, and also includes an annular groove (14) provided on the mold two (2), the annular groove (14) and the circular ring (11) being in contact with each other, the outer sides of the corresponding circular columns (12) on the mold one (1) and the mold two (2) are both connected to the limiting groove (15), the inner walls of the plurality of limiting grooves (15) are each provided with a limiting ring (16), and the plurality of limiting rings (16) and the plurality of circular columns (12) are respectively fixedly connected.

3. The injection mold for processing PVC and EVA fragrance buttons according to claim 2, characterized in that: A separation column (17) is fixedly connected to the middle of one end of the circular plate (10) close to the circular ring (11) and penetrates the mold one (1); ejection grooves (18) are provided on both sides of one end of the mold two (2) close to the mold one (1); the two ejection grooves (18) are connected through a hole (19) and a limiting groove (15); the inner walls of the two ejection grooves (18) are both provided with ejection columns (20); the two ejection columns (20) are fixedly connected through a square rod (21) and a circular column (12).

4. The injection mold for processing PVC and EVA fragrance buttons according to claim 1, characterized in that: The disengagement mechanism comprises a model groove (22) provided in the middle of one end of the mold 2 (2) close to the mold 1 (1), telescopic grooves (23) are provided at both ends of the model groove (22), model columns (24) are provided on the inner walls of the two telescopic grooves (23), placement grooves (25) are provided on both sides of one end of the two telescopic grooves (23) close to each other, and springs (26) are fixedly connected between the two groups of the placement grooves (25) and the two model columns (24).

5. The injection mold for processing PVC and EVA fragrance buttons according to claim 4, characterized in that: The disengagement mechanism further comprises a groove (27) formed at the other end of the second mold (2), and square grooves (28) are formed on both sides of one end of the groove (27). The middle parts of the two model columns (24) which are away from each other at one end are fixedly connected with telescopic columns (29) and extend into the square grooves (28).

6. The injection mold for processing PVC and EVA fragrance buttons according to claim 5, characterized in that: The inner walls of the two square grooves (28) are both provided with square columns (30), one end of the two square columns (30) is fixedly connected to a circular plate (31), the outer side of the inner wall of the groove (27) is fixedly connected to a fixed plate (32), one end of the fixed plate (32) close to the circular plate (31) is fixedly connected to a hydraulic rod (33), and the telescopic end of the hydraulic rod (33) is fixedly connected to the circular plate (31).

7. The injection mold for processing PVC and EVA fragrance buttons according to claim 1, characterized in that: The pouring mechanism comprises an arc-shaped notch (34) opened at the top of the mold 1 (1) and the mold 2 (2), the two arc-shaped notches (34) form a circular pouring port, and the bottoms of the two arc-shaped notches (34) are connected to a blocking notch (35).

8. The injection mold for processing PVC and EVA fragrance buttons according to claim 7, characterized in that: The inner walls of the two arc-shaped notches (34) are fixedly connected with a fixing block (36); the ends of the two fixing blocks (36) close to each other are slidably connected with an arc-shaped tube (37); the bottom ends of the two arc-shaped tubes (37) are fixedly connected with a floating block (38); and the ends of the two arc-shaped tubes (37) away from each other are fixedly connected with an indicating block (39).

9. An injection molding process for processing PVC and EVA scented buttons, characterized in that: The injection mold for processing PVC and EVA scented buttons according to any one of claims 1 to 8 comprises the following steps: Step 1: injecting liquid into the model cavity between mold 1 (1) and mold 2 (2) through a pouring mechanism, and reminding the staff through the pouring mechanism to prevent pouring too much liquid and allow the liquid to cool; Step 2: After cooling, the petal-shaped fragrance button is freed from the limit by the disengagement mechanism, and then the internal petal-shaped fragrance button is exposed by the preliminary separation mechanism. After that, the circular column (12) and the petal-shaped fragrance button are slowly separated by the secondary separation mechanism to obtain the petal-shaped fragrance button.

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