A cosmetic foundation box processing and forming mold

Abstract

The present invention discloses a cosmetic foundation box processing and forming mold, which relates to the field of mold technology and includes a movable mold, a fixed mold, a female mold, a male mold, an injection nozzle, a runner mechanism, a runner block, and a plastic cutting piece. The plastic cutting piece is used to cut the plastic when the material pressure in the female mold cavity is consistent with the material pressure in the runner mechanism, and at the same time, the female mold cavity and the runner mechanism are changed from a connected state to a disconnected state; and a volume adjustment mechanism. In the present invention, excess plastic in the mold cavity will flow back to the runner mechanism through the plastic cutting piece. When the plastic injection pressure in the flow mechanism is consistent with the pressure of the returned plastic, the plastic cutting piece will act and cut off the plastic in the runner mechanism, and at the same time, the flow state between the female mold cavity and the runner mechanism will disappear. In this way, after injection molding is completed, the foundation box mold in a single mold cavity can be demolded independently and is not connected to other foundation box molds, thereby facilitating the demolding of each foundation box mold.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to a cosmetic foundation box processing and forming mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding process that combines injection and molding. Its advantages include fast production speed, high efficiency, automated operation, a wide variety of designs and colors, shapes ranging from simple to complex, and sizes ranging from large to small. Furthermore, it produces precise product dimensions, is easily updated, and can produce complex shapes. Injection molding is suitable for mass production and other molding processes involving complex shapes. At a certain temperature, completely molten plastic material is stirred by a screw, injected into a mold cavity at high pressure, and cooled and solidified to produce a molded product. This method is suitable for mass production of complex parts and is a key processing method.

[0003] Injection molding is usually used in the production of cosmetic foundation boxes. During the injection molding process, the movable mold is close to the fixed mold, and the female mold is engaged with the male mold. Then, plastic is injected into the mold cavity surrounded by the female mold and the male mold through the injection nozzle. The plastic flows into each mold cavity through the runner. Since there are multiple male molds on the fixed mold, the runner on the movable mold often needs to be equipped with multiple branch runners to connect the injection nozzle with the multiple branch runners. Then, the plastic can be injected into the mold cavity through the branch runner through an injection nozzle. Since the branch runner and the mold cavity are connected, When the mold cavity is filled with plastic, plastic will still remain in the runner. During the injection molding process, the runner and the plastic in the mold cavity are molded together, which causes multiple foundation boxes in the mold cavities to be connected together after molding, making it inconvenient to demold. In addition, due to the provision of multiple runners, the injection pressure of the plastic in a single mold cavity is uneven and the pressure is relatively low, which will cause the plastic to be loose in the mold cavity, that is, gaps may be generated inside the plastic in the mold cavity, which will result in poor surface appearance quality of the foundation box after subsequent molding. Summary of the Invention

[0004] The object of the present invention is to provide a cosmetic foundation box processing and forming mold to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cosmetic foundation box processing and forming mold, comprising a movable mold and a fixed mold, wherein the movable mold surface is provided with a plurality of female molds, the fixed mold surface is provided with a plurality of male molds cooperating with the female molds, an injection nozzle is fixedly penetrated through the movable mold surface, and a flow channel mechanism is provided on the side of the movable mold facing the fixed mold, wherein the flow channel mechanism is used to connect the injection nozzle and the female mold, and further comprising:

[0007] a flow channel block slidably engaged in a groove provided in the surface of the fixed mold, wherein a through hole is provided on the surface of the flow channel block, and a plastic cutting member is provided in the through hole, wherein the plastic cutting member is used to cut the plastic in the flow channel mechanism when the pressure of the material in the inner cavity of the female mold is consistent with the pressure of the material in the flow channel mechanism, and at the same time, the inner cavity of the female mold and the flow channel mechanism are switched from a connected state to a disconnected state;

[0008] A volume adjustment mechanism is provided on the fixed mold, and the volume adjustment mechanism is used to adjust the volume of the inner cavity of the female mold.

[0009] Through the above technical solution, after the movable mold and the fixed mold are closed, a mold cavity is formed between the female mold and the male mold, and the volume adjustment mechanism is activated to expand the volume of the female mold cavity (or expand the volume of the mold cavity), so that the amount of plastic entering the mold cavity from the injection nozzle through the runner mechanism increases. After the injection is completed, the volume adjustment mechanism is reset. When resetting, the excess plastic in the mold cavity will flow back to the runner mechanism by the plastic cutting member. When the plastic injection pressure in the flow mechanism is consistent with the pressure of the returned plastic, the plastic cutting member will be activated and cut off the plastic in the runner mechanism, and at the same time, the flow state between the female mold cavity and the runner mechanism will disappear. In this way, after the injection is completed, the foundation box mold in a single mold cavity can be demolded independently and is not connected to other foundation box molds, thereby facilitating the demolding of each foundation box mold. In addition, the plastic is squeezed when it flows back, thereby making the plastic in the mold cavity relatively tight, so that the surface appearance quality of the injection-molded foundation box mold is at least improved to a certain extent.

[0010] Furthermore, two cooling channels are provided in the movable mold, the openings of the two cooling channels on the same side are connected to a connecting pipe, and the openings on the other side are each installed with a pipe joint.

[0011] Through the above technical solution, the external cooling system transports the cooling medium to the cooling channel via the pipe joint, thereby being able to cool the molded foundation box mold after the injection molding is completed.

[0012] Furthermore, a guide column is vertically fixed to the surface of the fixed mold, and a guide hole is opened on the surface of the movable mold for the guide column to pass freely.

[0013] Through the above technical solution, the guide column and the guide hole cooperate with each other, so that the movable mold and the fixed mold have better guidance when closing the mold.

[0014] Furthermore, the runner mechanism includes an injection hole, a first branch channel, a second branch channel and a connecting port, which are opened on a side of the movable mold facing the fixed mold. The injection hole is connected to the injection nozzle. A plurality of second branch channels are provided and are connected to the injection hole. The second branch channel is arranged at an end of the first branch channel away from the injection hole and is connected to the first branch channel. The connecting port is arranged at an end of the second branch channel adjacent to the female mold and is connected to the female mold and the second branch channel. The outer dimensions of the runner block are adapted to the inner wall dimensions of the second branch channel.

[0015] Through the above technical solution, the injection nozzle injects the plastic into the injection hole, then flows into the second branch channel through the first branch channel, and then enters each female mold through the second branch channel and the connecting port, so that a single injection nozzle can inject into multiple female molds.

[0016] Furthermore, a through groove communicating with the through hole is provided on the surface of the flow channel block. When the flow channel block is engaged in the second branch flow channel, the through groove will be communicated with the first branch flow channel, and the through hole will be communicated with the adjacent communication port.

[0017] Through the above technical solution, after the movable mold and the fixed mold are closed, when the flow channel block is engaged in the second branch flow channel again, the first branch flow channel and the through groove are connected, and the through hole and the connecting port are connected.

[0018] Furthermore, the plastic cutting part includes a fixing ring fixedly mounted on the openings on both sides of the through hole, a deformation portion is coaxially fixed to the end of the fixing ring away from the communicating opening, and the deformation portion is sharp at the end away from the fixing ring, the outer diameter of the deformation portion decreases successively in the direction away from the fixing ring, a plurality of deformation seams are opened around the deformation portion, and the deformation seams are connected with the inner cavity of the deformation portion.

[0019] Through the above technical solution, when the volume adjustment mechanism is reset, due to the large amount of plastic in the mold cavity, the excess plastic will enter the inner cavity of the fixing ring and the deformation part through the connecting port, and the pressure of the refluxed plastic is relatively large, so that the deformation part is stretched open, and the refluxed plastic enters the first branch channel from the stretched deformation part. When the plastic injection pressure in the first branch channel is consistent with the pressure of the refluxed plastic, the force exerted on the deformation part by the reflux of the plastic disappears, thereby causing the deformation part to resume its deformation, and after the tip of the deformation part resumes its deformation, it can produce a cutting effect on the plastic in the first branch channel and the inner cavity of the deformation part.

[0020] Furthermore, a sliding column is slidably provided on the surface of the fixed mold, one axial end of the sliding column is fixedly connected to the flow channel block, and the sliding column is driven to move by a first driving element provided on the fixed mold.

[0021] Through the above technical solution, the first driving element drives the sliding column to move toward the movable mold, so that the sliding column drives the flow channel block to move toward the movable mold, and then after the movable mold and the fixed mold are closed, the flow channel block can be stuck in the second branch channel.

[0022] Furthermore, the volume adjustment mechanism includes a mounting ring fixedly engaged in the accommodating cavity opened on the surface of the male mold, and a piston block is coaxially slidably engaged in the ring hole of the mounting ring.

[0023] Through the above technical solution, the piston block moves in the direction of retracting into the inner side of the mounting ring, so that the volume of the mold cavity surrounded by the female mold and the male mold increases, thereby increasing the amount of plastic entering the mold cavity. The piston block then moves in the opposite direction, thereby squeezing the plastic entering the mounting ring into the mold cavity, increasing the plastic pressure in the mold cavity, and allowing excess plastic to flow back.

[0024] Furthermore, a connecting rod is fixedly connected to the end face of the piston block, and the connecting rod slides out of the outer wall of the fixed mold at one end away from the piston block. The ends of multiple connecting rods passing through the fixed mold are commonly connected to a connecting plate, and the connecting plate is driven to move by a second driving element provided on the fixed mold.

[0025] Through the above technical solution, the second driving element drives the connecting plate to move toward the fixed mold, so that the connecting plate can drive the connecting rod to move and the piston block can move in the mounting ring.

[0026] Furthermore, a blowing column is fixedly provided on the surface of the fixed mold, a sliding hole is provided on the end surface of the piston block for the free passage of the blowing column, a blind hole is provided on one end of the blowing column away from the movable mold, a blowing hole is provided on the periphery of the other end of the blowing column, the blowing hole is connected to the blind hole, a transition hole connected to the blind hole is provided on the surface of the fixed mold, a gas channel is provided on the outer wall of the fixed mold that passes through the transition hole, and the mouth of one side of the gas channel is connected through an air pipe.

[0027] Through the above technical solution, after the injection molding is completed and the movable mold and the fixed mold are separated, the piston block is first driven to move in the direction of being retracted into the mounting ring, so that a gap is generated between the end face of the piston block and the surface of the foundation box mold. At the same time, the blowing hole on the blowing column is connected to the gap. Then, the compressed air is delivered to the gas channel by the external compressed gas delivery system, so that the compressed air enters the blind hole of the blowing column through the transition hole, and then is blown into the gap through the blowing hole, so that the air pressure in the gap is increased. The foundation box mold is demolded by the air pressure. Compared with the ejector demolding method using ejector pins in the prior art, the damage to the surface of the foundation box mold is at least reduced to a certain extent.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. In the present invention, after the movable mold and the fixed mold are closed, a mold cavity is formed between the female mold and the male mold, and the volume adjustment mechanism is activated to expand the volume of the female mold cavity (or the volume of the mold cavity), thereby increasing the amount of plastic entering the mold cavity from the injection nozzle through the runner mechanism. After injection is completed, the volume adjustment mechanism is reset. During the reset, excess plastic in the mold cavity will flow back to the runner mechanism through the plastic cutting member. When the injection pressure of the plastic in the flow mechanism is consistent with the pressure of the returned plastic, the plastic cutting member will be activated and cut off the plastic in the runner mechanism, and at the same time, the flow state between the female mold cavity and the runner mechanism will disappear. In this way, after injection molding is completed, the foundation compact mold in a single mold cavity can be demolded independently and is not connected to other foundation compact molds, thereby facilitating the demolding of each foundation compact mold. In addition, when the plastic flows back, it is squeezed, thereby making the plastic in the mold cavity more compact, so that the surface appearance quality of the injection-molded foundation compact mold is improved to at least a certain extent.

[0030] 2. In the present invention, when the volume adjustment mechanism is reset, due to the large amount of plastic in the mold cavity, the excess plastic will enter the inner cavity of the fixing ring and the deformed portion through the connecting port. The pressure of the reflowing plastic is relatively large, causing the deformed portion to be expanded, so that the reflowing plastic enters the first branch channel through the expanded deformed portion. When the injection pressure of the plastic in the first branch channel is consistent with the pressure of the reflowing plastic, the force exerted on the deformed portion by the reflowing plastic disappears, thereby causing the deformed portion to recover its deformation. After the tip of the deformed portion recovers its deformation, it can produce a cutting effect on the plastic in the first branch channel and the inner cavity of the deformed portion.

[0031] 3. In the present invention, after the injection molding is completed and the movable mold and the fixed mold are separated, the piston block is first driven to move in a direction of being retracted into the mounting ring, so that a gap is generated between the end face of the piston block and the surface of the foundation box mold. At the same time, the blowing holes on the blowing column are connected to the gap. Then, the compressed air is delivered to the gas channel by an external compressed gas delivery system, so that the compressed air enters the blind hole of the blowing column through the transition hole, and is then blown into the gap through the blowing holes, so that the air pressure in the gap is increased. The foundation box mold is demolded by the air pressure. Compared with the ejector demolding method used in the prior art, the damage to the surface of the foundation box mold is at least reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a cosmetic foundation box processing and forming mold in the present invention;

[0033] Figure 2 for Figure 1 Schematic diagram of the position relationship of the first perspective;

[0034] Figure 3 for Figure 1 Schematic diagram of the positional relationship of the second perspective;

[0035] Figure 4 Schematic diagram of the positional relationship between the fixed mold and the male mold after assembly in the present invention;

[0036] Figure 5 for Figure 4 A schematic diagram of the positional relationship from another perspective;

[0037] Figure 6 This is a schematic diagram of the positional relationship among the mounting ring, piston block, and blow column after assembly in the present invention;

[0038] Figure 7 for Figure 6 Schematic diagram of the exploded structure;

[0039] Figure 8 for Figure 6 Schematic diagram of the positional relationship after the middle structure is cut open;

[0040] Figure 9 Schematic diagram of the structure of the movable mold in the present invention;

[0041] Figure 10 Schematic diagram of the structure of the fixed mold in the present invention;

[0042] Figure 11 Schematic diagram of the positional relationship between the sliding column and the flow channel block after assembly in the present invention;

[0043] Figure 12 This is a schematic diagram of the positional relationship between the fixing ring and the deformation portion after assembly in the present invention;

[0044] Figure 13 for Figure 12 Schematic diagram of the positional relationship from another perspective.

[0045] In the figure, the description of each figure mark is as follows: 1. upper sealing plate; 2. connecting pipe; 3. movable mold; 4. female mold; 5. guide column; 6. fixed mold; 7. connecting plate; 8. first cylinder; 9. second cylinder; 10. lower sealing plate; 11. sliding column; 12. pad; 13. air pipe; 14. injection nozzle; 15. male mold; 16. mounting ring; 17. piston block; 18. blowing column; 19. flow channel block; 20. connecting rod; 21. blind hole; 22. blowing hole; 23. injection hole; 24. first branch channel; 25. second branch channel; 26. connecting port; 27. accommodating cavity; 28. transition hole; 29. ​​slot; 30. gas channel; 31. through groove; 32. fixing ring; 33. deformation seam; 34. deformation part. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0047] See also Figure 1 - Figure 13 The present invention provides a technical solution: a cosmetic foundation box processing and molding mold, comprising an upper sealing plate 1 and a lower sealing plate 10, the upper sealing plate 1 being mounted on a hydraulic drive device of an injection molding machine, a movable mold 3 being mounted on the upper sealing plate 1, the lower sealing plate 10 being mounted on the injection molding machine, and a surface of the lower sealing plate 10 facing the upper sealing plate 1 being connected to a fixed mold 6 through a plurality of pads 12, four female molds 4 being provided on the surface of the movable mold 3, the four female molds 4 being arranged in an array along the center line of the fixed mold 6, four male molds 15 being provided on the surface of the fixed mold 6 to cooperate with the female mold 4, when the movable mold 3 and the fixed mold 6 are closed, the female mold 4 also cooperates with the male mold 15 to form a mold cavity, an injection nozzle 14 being fixedly penetrated on the surface of the movable mold 3, the injection nozzle 14 being connected to the injection device of the injection molding machine, and an injection hole 23 being provided on the side of the movable mold 3 facing the fixed mold 6 , a first branch channel 24, a second branch channel 25 and a connecting port 26, the injection hole 23 is connected to the injection nozzle 14, a plurality of first branch channels 24 are provided and are connected to the injection hole 23, the second branch channel 25 is provided at one end of the first branch channel 24 away from the injection hole 23, and is connected to the first branch channel 24, the connecting port 26 is provided at one end of the second branch channel 25 adjacent to the female mold 4, and is connected to the female mold 4 and the second branch channel 25, two cooling channels are provided in the movable mold 3, the mouths on the same side of the two cooling channels are connected to the connecting pipe 2, and the mouths on the other side are each installed with a pipe joint, the two pipe joints are respectively connected to the medium inlet and medium outlet of the external cooling system, a guide column 5 is vertically fixed to the surface of the fixed mold 6, and a guide hole for the guide column 5 to pass freely is provided on the surface of the movable mold 3;

[0048] The surface of the male mold 15 is provided with a recessed accommodating cavity 27, in which a mounting ring 16 is mounted and engaged, and a piston block 17 is coaxially slidably engaged in the annular hole of the mounting ring 16. The piston block 17 can slide freely along the axial direction of the mounting ring 16 in the annular hole of the mounting ring 16. A connecting rod 20 is fixed to the end face of the piston block 17, and the end of the connecting rod 20 away from the piston block 17 slides out of the outer wall of the fixed mold 6. The ends of the multiple connecting rods 20 that pass through the fixed mold 6 are connected to the connecting plate 7 by means of nut locking. The lower sealing plate 10 is arranged on the outer wall of one side of the fixed mold 6. A first air cylinder 8 is installed, and the cylinder rod of the first air cylinder 8 is connected to the connecting plate 7. In this way, when the cylinder rod of the first air cylinder 8 is extended or retracted, it can synchronously drive the connecting plate 7 to move, thereby enabling the connecting rod 20 to drive the piston block 17 to slide in the ring hole of the mounting ring 16. In the initial state, the end face of the piston block 17 is flush with the end face of the mounting ring 16 and the surface of the male mold 15. In addition, when the movable mold 3 and the fixed mold 6 are closed, a mold cavity is enclosed between the female mold 4 and the male mold 15. When the piston block 17 moves in the direction of retracting into the inner side of the mounting ring 16, the volume of the mold cavity will increase.

[0049] In addition, a blowing column 18 is fixedly penetrated on the surface of the fixed mold 6, a sliding hole is provided on the end surface of the piston block 17 for the blowing column 18 to pass freely, a blind hole 21 is provided on the end of the blowing column 18 away from the movable mold 3, and a blowing hole 22 is provided on the periphery of the other end of the blowing column 18, and the blowing hole 22 is communicated with the blind hole 21. A transition hole 28 communicated with the blind hole 21 is provided on the surface of the fixed mold 6, and a gas channel 30 is provided on the outer wall of the fixed mold 6 to pass through the transition hole 28. One side of the mouth of the gas channel 30 is connected by the air pipe 13, and the external compressed gas delivery system is connected to the other side of the mouth of the gas channel 30, so that the compressed gas can be delivered to the gas channel 30, and then enter the transition hole 28 through the gas channel 30, and then enter the blind hole 21 of the blowing column 18;

[0050] A slot 29 is provided on the surface of the fixed mold 6, and a flow channel block 19 is slidably engaged in the slot 29. The outer dimensions of the flow channel block 19 are adapted to the inner wall dimensions of the second branch flow channel 25. A through hole is provided on the surface of the flow channel block 19, and a through groove 31 communicating with the through hole is provided on the surface of the flow channel block 19. When the flow channel block 19 is engaged in the second branch flow channel 25, the through groove 31 will be connected to the first branch flow channel 24, and the through hole will be connected to the adjacent communication port 26. A fixing ring 32 is fixedly engaged with each of the two sides of the through hole. The fixing ring 32 is coaxially fixed with a variable The outer wall of the lower sealing plate 10 facing the fixed mold 6 is provided with a second cylinder 9, and the cylinder rod of the second cylinder 9 is connected to the end of the sliding column 11 passing through the fixed mold 6, so that when the cylinder rod of the second cylinder 9 is extended or retracted, the sliding column 11 can be driven to move synchronously.

[0051] Working principle of the present invention:

[0052] The hydraulic drive device of the injection molding machine drives the movable mold 3 to move toward the fixed mold 6, so that the movable mold 3 and the fixed mold 6 begin to close. Before closing the mold, the surface of the runner block 19 is flush with the surface of the fixed mold 6. After closing the mold, a mold cavity is formed between the female mold 4 and the male mold 15. Then the injection molding device starts to inject. The molten plastic will enter the injection hole 23 through the injection nozzle 14, and then enter the mold cavity through the first branch runner 24, the second branch runner 25 and the connecting port 26.

[0053] The cylinder rod of the first cylinder 8 shortens, driving the connecting plate 7 to move away from the fixed mold 6, thereby causing the connecting rod 20 to drive the piston block 17 to move inward of the mounting ring 16, thereby creating a gap between the end face of the piston block 17 and the surface of the male mold 15, thereby increasing the volume of the mold cavity. At this stage, the blowing holes 22 on the blowing column 18 are not exposed, and the plastic in the mold cavity will enter the gap, increasing the amount of plastic in the mold cavity.

[0054] After the injection is completed, the second cylinder 9 is started, the cylinder rod of the second cylinder 9 is extended, and the sliding column 11 is driven to drive the flow channel block 19 to move toward the second branch channel 25 until the flow channel block 19 is engaged in the second branch channel 25. The cylinder rod of the first cylinder 8 is extended, and the piston block 17 is moved in the opposite direction until its end face is flush with the surface of the male mold 15. The excess plastic in the mold cavity will be squeezed to the connecting port 26, and the plastic will flow back into the inner cavity of the deformation part 34, and the inner cavity wall of the deformation part 34 will be deformed. The generated extrusion force causes the deformed portion 34 to elastically expand and deform, thereby causing the excess plastic to flow back into the second branch channel 25 from the portion expanded by the deformed portion 34. When the excess plastic is discharged, the force exerted by the plastic on the deformed portion 34 disappears, causing the deformed portion 34 to recover. After the sharp portion of the deformed portion 34 recovers, it will cut the plastic and separate the second branch channel 25 from the connecting port 26. As the injection molding proceeds, the final injection-molded foundation compact mold is obtained.

[0055] After the injection molding is completed and the movable mold 3 and the fixed mold 6 are separated, the piston block 17 is first driven to move in the direction of being retracted into the mounting ring 16, so that a gap is generated between the end face of the piston block 17 and the surface of the foundation box mold (the movement amplitude is greater than the movement amplitude of the piston block 17 in the above step, so that the blowing hole 22 on the blowing column 18 is exposed), and at the same time, the blowing hole 22 on the blowing column 18 is connected to the gap, and then the compressed air is delivered to the gas channel 30 by the external compressed gas delivery system, so that the compressed air enters the blind hole 21 of the blowing column 18 through the transition hole 28, and then is blown into the gap through the blowing hole 22, so that the air pressure in the gap is increased, and the foundation box mold is demoulded by the air pressure. Compared with the ejector demoulding method using ejector pins in the prior art, the damage to the surface of the foundation box mold is at least reduced to a certain extent.

[0056] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cosmetic foundation box processing and forming mold, comprising a movable mold (3) and a fixed mold (6), wherein a plurality of female molds (4) are provided on the surface of the movable mold (3), a plurality of male molds (15) cooperating with the female molds (4) are provided on the surface of the fixed mold (6), an injection nozzle (14) is fixedly penetrated on the surface of the movable mold (3), and a flow channel mechanism is provided on the side of the movable mold (3) facing the fixed mold (6), the flow channel mechanism is used to connect the injection nozzle (14) and the female mold (4), and is characterized in that: Also includes: A flow channel block (19) is slidably engaged in a groove (29) provided on the surface of the fixed mold (6), a through hole being provided on the surface of the flow channel block (19), a plastic cutting member being provided in the through hole, the plastic cutting member being used to cut the plastic in the flow channel mechanism when the pressure of the material in the inner cavity of the female mold (4) is consistent with the pressure of the material in the flow channel mechanism, and at the same time, the inner cavity of the female mold (4) and the flow channel mechanism are switched from a connected state to a disconnected state; A volume adjustment mechanism provided on the fixed mold (6), the volume adjustment mechanism being used to adjust the volume of the inner cavity of the female mold (4); The flow channel mechanism includes an injection hole (23) opened on a side of the movable mold (3) facing the fixed mold (6), a first branch flow channel (24), a second branch flow channel (25) and a connecting port (26); the injection hole (23) is connected to the injection nozzle (14); a plurality of second branch flow channels (25) are provided and are connected to the injection hole (23); the second branch flow channel (25) is provided at an end of the first branch flow channel (24) away from the injection hole (23) and is connected to the first branch flow channel (24); the connecting port (26) is provided at an end of the second branch flow channel (25) adjacent to the female mold (4) and is connected to the female mold (4) and the second branch flow channel (25); the outer dimensions of the flow channel block (19) are adapted to the inner wall dimensions of the second branch flow channel (25); A through groove (31) communicating with the through hole is provided on the surface of the flow channel block (19); when the flow channel block (19) is engaged in the second branch flow channel (25), the through groove (31) will be connected with the first branch flow channel (24), and the through hole will be connected with the adjacent communication port (26); The plastic cutting piece includes a fixing ring (32) fixedly mounted on the openings on both sides of the through hole, a deformation portion (34) is coaxially fixedly connected to one end of the fixing ring (32) away from the communicating opening (26), and the end of the deformation portion (34) away from the fixing ring (32) is sharp, and the outer diameter of the deformation portion (34) decreases in sequence in the direction away from the fixing ring (32), and a plurality of deformation slits (33) are opened on the periphery of the deformation portion (34), and the deformation slits (33) are connected to the inner cavity of the deformation portion (34).

2. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: Two cooling channels are provided in the movable mold (3), the openings of the two cooling channels on the same side are connected to a connecting pipe (2), and the openings on the other side are each provided with a pipe joint.

3. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: A guide column (5) is vertically fixed to the surface of the fixed mold (6), and a guide hole for the guide column (5) to pass freely is opened on the surface of the movable mold (3).

4. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: A sliding column (11) is slidably provided on the surface of the fixed mold (6), one axial end of the sliding column (11) is fixedly connected to the flow channel block (19), and the sliding column (11) is driven to move by a first driving element provided on the fixed mold (6).

5. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: The volume adjustment mechanism includes a mounting ring (16) fixedly engaged in a receiving cavity (27) provided on the surface of the male mold (15), and a piston block (17) is coaxially slidably engaged in a ring hole of the mounting ring (16).

6. A cosmetic foundation box processing and forming mold according to claim 5, characterized in that: A connecting rod (20) is fixedly connected to the end surface of the piston block (17), and one end of the connecting rod (20) away from the piston block (17) slides through the outer wall of the fixed mold (6). One end of the plurality of connecting rods (20) passing through the fixed mold (6) is commonly connected to a connecting plate (7), and the connecting plate (7) is driven to move by a second driving element provided on the fixed mold (6).

7. A cosmetic foundation box processing and forming mold according to claim 6, characterized in that: A blowing column (18) is fixedly provided on the surface of the fixed mold (6), a sliding hole for the blowing column (18) to pass freely is provided on the end surface of the piston block (17), a blind hole (21) is provided on one end of the blowing column (18) away from the movable mold (3), a blowing hole (22) is provided on the periphery of the other end of the blowing column (18), and the blowing hole (22) is communicated with the blind hole (21), a transition hole (28) is provided on the surface of the fixed mold (6) and communicated with the blind hole (21), and a gas channel (30) is provided on the outer wall of the fixed mold (6) and communicated with the transition hole (28), and the mouth of one side of the gas channel (30) is connected through the air pipe (13).

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