Cosmetic foundation makeup box processing and forming mold

Abstract

The invention discloses a cosmetic foundation make-up box processing and forming mold, and relates to the technical field of molds, the cosmetic foundation make-up box processing and forming mold comprises a movable mold, a fixed mold, a female mold, a male mold, an injection nozzle, a runner mechanism, a runner plug block and a plastic cutting piece, the plastic cutting piece is used for cutting plastic when the material pressure in an inner cavity of the female mold is consistent with the material pressure in the runner mechanism; meanwhile, the inner cavity of the female die and the runner mechanism are converted into a non-communicating state from a communicating state; and a volume adjusting mechanism. According to the plastic injection mold, redundant plastic in the mold cavity flows back to the runner mechanism through the plastic cutting piece, when the plastic injection pressure in the flowing mechanism is consistent with the backflow plastic pressure, the plastic cutting piece acts, the plastic in the runner mechanism is cut off, meanwhile, the circulation state between the female mold inner cavity and the runner mechanism disappears, and in this way, after injection molding is completed, the plastic cutting piece can cut off the plastic in the runner mechanism. The foundation make-up box mold in the single mold cavity can be demolded independently and is not connected with other foundation make-up box molds, so that the foundation make-up box molds can be demolded conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a processing and forming mold for a cosmetic powder box. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automation of operation, a variety of colors and patterns, the shape can range from simple to complex, the size can range from large to small, and the product size is precise, the product is easy to update, and it can form parts with complex shapes. Injection molding is suitable for the molding processing fields such as mass production and products with complex shapes. At a certain temperature, the plastic material is completely melted by screw stirring and injected into the mold cavity under high pressure. After cooling and solidification, the molded product is obtained. This method is suitable for the batch production of parts with complex shapes and is one of the important processing methods.

[0003] When making a cosmetic powder box, injection molding is usually used. During the injection molding processing operation, the moving mold approaches 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, multiple sub-runners often need to be set on the moving mold to connect the injection nozzle and the multiple sub-runners. Then, the plastic can be injected into the mold cavity through the sub-runners by one injection nozzle. Since the sub-runners are connected to the mold cavity, when the mold cavity is filled with plastic, there will still be plastic remaining in the sub-runners. Therefore, during the injection molding process, the plastic in the sub-runners and the mold cavity is molded together, resulting in the powder boxes in multiple mold cavities being connected together after molding, which is not convenient for demolding. In addition, due to the setting of multiple sub-runners, the injection pressure of the plastic in a single mold cavity is uneven and the pressure is small. This will cause the plastic in the mold cavity to be not compact, that is, there may be voids inside the plastic in the mold cavity, resulting in poor surface appearance quality of the subsequent molded powder box. Summary of the Invention

[0004] The purpose of the present invention is to provide a processing and forming mold for a cosmetic powder box to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A processing and forming mold for a cosmetic powder box, including a moving mold and a fixed mold. A plurality of female molds are provided on the surface of the moving mold, and a plurality of male molds matching with the female molds are provided on the surface of the fixed mold. An injection nozzle is fixedly penetrated through the surface of the moving mold. A runner mechanism is provided on one side of the moving mold facing the fixed mold. The runner mechanism is used to connect the injection nozzle and the female mold, and further includes: A runner block that is slidably engaged in a card slot formed on the surface of the fixed mold. A through hole is formed on the surface of the runner block, and a plastic cutting member is provided in the through hole. The plastic cutting member is used to cut the plastic in the runner mechanism when the material pressure in the cavity of the female mold is consistent with the material pressure in the runner mechanism, and at the same time convert the communication state between the cavity of the female mold and the runner mechanism into a non-communication state; A volume adjustment mechanism provided on the fixed mold, and the volume adjustment mechanism is used to adjust the volume of the cavity of the female mold.

[0006] Through the above technical solution, after the moving mold and the fixed mold are clamped, a mold cavity is formed between the female mold and the male mold. The volume adjustment mechanism operates to expand the volume of the cavity of the female mold (or expand the volume of the mold cavity), so that the amount of plastic entering the mold cavity through the runner mechanism from the injection nozzle increases. After injection, the volume adjustment mechanism resets. When resetting, the excess plastic in the mold cavity will flow back to the runner mechanism by the plastic cutting member. When the injection pressure of the plastic in the flow mechanism is consistent with the pressure of the flowing-back plastic, the plastic cutting member will act and cut off the plastic in the runner mechanism, and at the same time eliminate the communication state between the cavity of the female mold and the runner mechanism. In this way, after injection molding, the powder box mold in a single mold cavity can be independently demolded and is not connected to other powder box molds, which facilitates the demolding of each powder box mold. In addition, when the plastic flows back, it is squeezed, so that the plastic in the mold cavity is relatively compact, and thus the surface appearance quality of the injection-molded powder box mold is improved to at least a certain extent.

[0007] Further, two cooling channels are formed in the moving mold. The mouths on the same side of the two cooling channels are commonly connected with a connecting pipe, and pipe joints are respectively installed at the mouths on the other side.

[0008] Through the above technical solution, an external cooling system transports a cooling medium to the cooling channels through the pipe joints, and thus can cool the injection-molded powder box mold after injection molding.

[0009] Further, a guide post is vertically fixed on the surface of the fixed mold, and a guide hole for the free passage of the guide post is formed on the surface of the moving mold.

[0010] Through the above technical solution, the guide post and the guide hole cooperate with each other, so that the moving mold and the fixed mold have good guidance when being clamped.

[0011] Furthermore, the runner mechanism includes an injection hole, a first branch runner, a second branch runner 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 runners are provided and are connected to the injection hole, the second branch runner is arranged at an end of the first branch runner away from the injection hole and is connected to the first branch runner, the connecting port is arranged at an end of the second branch runner adjacent to the female mold and is connected to the female mold and the second branch runner, and the outer dimensions of the runner block are adapted to the dimensions of the inner wall of the second branch runner.

[0012] Through the above technical solution, the injection nozzle injects the plastic into the injection hole, and 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.

[0013] Furthermore, a through groove communicating with the through hole is formed 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 connecting port.

[0014] Through the above technical solution, after the movable mold and the fixed mold are closed, when the flow channel blocking 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.

[0015] Furthermore, the plastic cutting part includes a fixing ring fixedly mounted on the two side openings of the through hole, a deformation portion is coaxially fixedly connected to one end of the fixing ring away from the connecting opening, and the deformation portion is sharp at one end away from the fixing ring, an 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.

[0016] 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 expanded, and the refluxed plastic enters the first branch channel from the expanded deformation part. When the plastic injection pressure in the first branch channel is consistent with the refluxed plastic pressure, the force exerted on the deformation part by the reflux of the plastic disappears, thereby causing the deformation part to resume its deformation. 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.

[0017] 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 arranged on the fixed mold.

[0018] Through the above technical solution, the first driving element drives the sliding column to move towards the moving mold, so that the sliding column drives the runner plug to move towards the moving mold. Then, after the moving mold and the fixed mold are clamped, the runner plug can be clamped into the second runner.

[0019] Furthermore, the volume adjusting mechanism includes a mounting ring fixedly clamped in the accommodating cavity opened on the surface of the male mold, and a piston block is coaxially and slidably clamped in the annular hole of the mounting ring.

[0020] Through the above technical solution, the piston block moves towards the direction of shrinking 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, and then the amount of plastic entering the mold cavity increases. Then, through the reverse movement of the piston block, the plastic entering the mounting ring can be extruded into the mold cavity, so that the plastic pressure in the mold cavity increases, and then the excess plastic can flow back.

[0021] Furthermore, a connecting rod is fixedly connected to the end face of the piston block. The end of the connecting rod away from the piston block slidably penetrates through the outer wall of the fixed mold. A plurality of ends of the connecting rods penetrating through the fixed mold are commonly connected to a connecting plate, and the connecting plate is driven to move by a second driving element arranged on the fixed mold.

[0022] Through the above technical solution, the second driving element drives the connecting plate to move towards 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.

[0023] Furthermore, a blowing column is fixedly penetrated through the surface of the fixed mold. A sliding hole for the blowing column to freely pass through is opened on the end face of the piston block. A blind hole is opened at one end of the blowing column away from the moving mold. Air blowing holes are opened on the periphery of the other end of the blowing column. The air blowing holes are communicated with the blind hole. A transition hole communicated with the blind hole is opened on the surface of the fixed mold. A gas channel penetrating through the transition hole is opened on the outer wall of the fixed mold. One side of the opening of the gas channel is connected through a trachea.

[0024] Through the above technical solution, after the injection molding is completed and the moving mold and the fixed mold are separated, first drive the piston block to move towards the direction of shrinking into the mounting ring, so that a gap is generated between the end face of the piston block and the surface of the powder box mold, and at the same time, the air blowing holes on the blowing column are communicated with the gap. Then, the compressed air is transported to the gas channel by an external compressed gas delivery system, so that the compressed air enters the blind hole of the blowing column from the transition hole, and then is blown into the gap from the air blowing holes, so that the air pressure in the gap increases, and the powder box mold is demolded by the air pressure. Compared with the method of using ejector pins for demolding in the prior art, at least to a certain extent, the damage to the surface of the powder box mold is reduced.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 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), 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 refluxed 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 disappears. In this way, after the injection molding is completed, the foundation box mold in a single mold cavity can be demolded independently and is not connected with other foundation box molds, thereby facilitating the demolding of each foundation box 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 box mold is improved at least to a certain extent; 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 deformation part from the connecting port, and the pressure of the refluxed plastic is large, so that the deformation part is stretched open, and the refluxed plastic enters the first branch flow channel from the stretched deformation part. When the injection pressure of the plastic in the first branch flow channel is consistent with the pressure of the refluxed plastic, the force exerted on the deformation part by the reflux of the plastic disappears, and the deformation part is restored to its original shape. After the tip of the deformation part is restored to its original shape, it can produce a cutting effect on the plastic in the first branch flow channel and the inner cavity of the deformation part. 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 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, and at the same time, the blowing hole on the blowing column is connected to the gap, and 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 then is blown into the gap through the blowing hole, so that the air pressure in the gap is increased, and the foundation box mold is demoulded by 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a cosmetic foundation box processing and forming mold in the present invention; Figure 2 for Figure 1 Schematic diagram of the positional relationship of the first perspective; Figure 3 for Figure 1 Schematic diagram of the positional relationship of the second perspective; Figure 4 It is a schematic diagram of the positional relationship between the fixed mold and the male mold after assembly in the present invention; Figure 5 forFigure 4 Schematic diagram of the positional relationship from another perspective in Figure 6 Schematic diagram of the positional relationship after the installation ring, piston block and air blowing column in the present invention are assembled; Figure 7 is Figure 6 Exploded decomposition schematic diagram of the structure in Figure 8 is Figure 6 Schematic diagram of the positional relationship after the structure in is sectioned; Figure 9 Schematic diagram of the structure of the moving mold in the present invention; Figure 10 Schematic diagram of the structure of the fixed mold in the present invention; Figure 11 Schematic diagram of the positional relationship after the sliding column and the runner plug in the present invention are assembled; Figure 12 Schematic diagram of the positional relationship after the fixed ring and the deformation part in the present invention are assembled; Figure 13 is Figure 12 Schematic diagram of the positional relationship from another perspective in

[0027] In the figure, the explanations of each reference numeral are as follows: 1. upper sealing plate; 2. connecting pipe; 3. moving mold; 4. female mold; 5. guiding column; 6. fixed mold; 7. connecting plate; 8. first cylinder; 9. second cylinder; 10. lower sealing plate; 11. sliding column; 12. cushion block; 13. air pipe; 14. injection nozzle; 15. male mold; 16. installation ring; 17. piston block; 18. air blowing column; 19. runner plug; 20. connecting rod; 21. blind hole; 22. air blowing hole; 23. injection hole; 24. first runner; 25. second runner; 26. communication port; 27. accommodation cavity; 28. transition hole; 29. clamping groove; 30. gas channel; 31. through groove; 32. fixed ring; 33. deformation joint; 34. deformation part. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1 - Figure 13, the present invention provides a technical solution: a processing and forming mold for a cosmetic foundation box, including an upper sealing plate 1 and a lower sealing plate 10. The upper sealing plate 1 is installed on the hydraulic driving device of an injection molding machine. A moving mold 3 is installed on the upper sealing plate 1. The lower sealing plate 10 is installed on the injection molding machine, and a fixed mold 6 is connected to one side surface of the lower sealing plate 10 facing the upper sealing plate 1 through a plurality of spacer blocks 12. Four female molds 4 are provided on the surface of the moving mold 3, and the four female molds 4 are arranged in an array along the center line of the fixed mold 6. Four male molds 15 that cooperate with the female molds 4 are provided on the surface of the fixed mold 6. When the moving mold 3 and the fixed mold 6 are closed, the female molds 4 also cooperate with the male molds 15 to form a mold cavity. An injection nozzle 14 is fixedly penetrated through the surface of the moving mold 3, and the injection nozzle 14 is connected to the injection device of the injection molding machine. An injection hole 23, a first runner 24, a second runner 25, and a communication port 26 are provided on one side of the moving mold 3 facing the fixed mold 6. The injection hole 23 communicates with the injection nozzle 14. A plurality of first runners 24 are provided and communicate with the injection hole 23. The second runner 25 is provided at one end of the first runner 24 away from the injection hole 23 and communicates with the first runner 24. The communication port 26 is provided at one end of the second runner 25 adjacent to the female mold 4 and communicates with the female mold 4 and the second runner 25. Two cooling channels are provided in the moving mold 3. The mouths on the same side of the two cooling channels are jointly connected to a connecting pipe 2, and pipe joints are installed at the mouths on the other side. The two pipe joints are respectively connected to the medium inlet and the medium outlet of an external cooling system. A guide post 5 is vertically fixed on the surface of the fixed mold 6, and a guide hole for the guide post 5 to freely pass through is provided on the surface of the moving mold 3; A recessed accommodation cavity 27 is provided on the surface of the male mold 15. An installation ring 16 is snap-fitted and installed in the accommodation cavity 27. A piston block 17 is coaxially and slidably snap-fitted in the annular hole of the installation ring 16. The piston block 17 can freely slide along the axial direction of the installation ring 16 in the annular hole of the installation ring 16. A connecting rod 20 is fixedly connected to the end face of the piston block 17. One end of the connecting rod 20 away from the piston block 17 slidably passes through the outer wall of the fixed mold 6. One ends of a plurality of connecting rods 20 passing through the fixed mold 6 are jointly connected by means of nut locking to a connecting plate 7. A first cylinder 8 is installed on one side outer wall of the lower sealing plate 10 facing the fixed mold 6. The cylinder rod of the first cylinder 8 is connected to the connecting plate 7. In this way, when the cylinder rod of the first cylinder 8 expands and contracts, it can synchronously drive the connecting plate 7 to move, so that the connecting rod 20 can drive the piston block 17 to slide in the annular hole of the installation ring 16. In the initial state of the piston block 17, its end face is flush with the end face of the installation ring 16 and the surface of the male mold 15. In addition, when the moving mold 3 and the fixed mold 6 are closed, a mold cavity is formed between the female mold 4 and the male mold 15. When the piston block 17 moves in the direction of shrinking into the inner side of the installation ring 16, the volume of the mold cavity will increase; In addition, a blowing column 18 is fixedly penetrated through the surface of the fixed mold 6. A sliding hole for the free passage of the blowing column 18 is formed in the end face of the piston block 17. A blind hole 21 is formed at one end of the blowing column 18 away from the moving mold 3. Blowing holes 22 are formed in the periphery of the other end of the blowing column 18. The blowing holes 22 are communicated with the blind hole 21. A transition hole 28 communicated with the blind hole 21 is formed in the surface of the fixed mold 6. A gas passage 30 penetrating through the outer wall of the fixed mold 6 is formed and communicated with the transition hole 28. One side opening of the gas passage 30 is connected through a trachea 13. An external compressed gas delivery system is connected to the other side opening of the gas passage 30, so that compressed gas can be delivered into the gas passage 30, then enter the transition hole 28 from the gas passage 30, and subsequently enter the blind hole 21 of the blowing column 18; A clamping groove 29 is formed in the surface of the fixed mold 6. A runner plug 19 is slidably clamped and installed in the clamping groove 29. The outer dimension of the runner plug 19 is adapted to the inner wall dimension of the second runner 25. A through hole is formed in the surface of the runner plug 19. A through groove 31 communicated with the through hole is formed in the surface of the runner plug 19. When the runner plug 19 is clamped in the second runner 25, the through groove 31 will be communicated with the first runner 24, and the through hole is communicated with the adjacent communication port 26. Fixed rings 32 are fixedly clamped and installed at both side openings of the through hole. A deformation part 34 is coaxially fixed at one end of the fixed ring 32 away from one adjacent communication port 26, and the end of the deformation part 34 away from the fixed ring 32 is sharp. The outer diameter of the deformation part 34 gradually decreases in the direction away from the fixed ring 32. A plurality of deformation slits 33 are formed in the periphery of the deformation part 34. The deformation slits 33 are communicated with the inner cavity of the deformation part 34. A sliding column 11 is slidably penetrated through the surface of the fixed mold 6. One axial end of the sliding column 11 is fixedly connected with the runner plug 19. A second air cylinder 9 is installed on the outer wall of the lower sealing plate 10 facing the fixed mold 6. The air cylinder rod of the second air cylinder 9 is connected to the end of the sliding column 11 passing through the fixed mold 6, so that when the air cylinder rod of the second air cylinder 9 expands and contracts, the sliding column 11 can be driven to move synchronously.

[0030] The working principle of the present invention: The hydraulic driving device of the injection molding machine drives the moving mold 3 to move towards the fixed mold 6, so that the moving mold 3 and the fixed mold 6 start to close the mold. Before closing the mold, the surface of the runner plug 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 device starts to inject. The molten plastic will enter the injection hole 23 from the injection nozzle 14, and then enter the mold cavity through the first runner 24, the second runner 25 and the communication port 26; The cylinder rod of the first cylinder 8 shortens, driving the connecting plate 7 to move away from the fixed mold 6. Further, the connecting rod 20 drives the piston block 17 to move in the direction of retracting into the inner side of the mounting ring 16. As a result, a gap is generated between the end face of the piston block 17 and the surface of the male mold 15, increasing the volume of the mold cavity. At this stage, the air blowing holes 22 on the air blowing column 18 are not exposed. At this time, the plastic in the mold cavity will enter the gap, increasing the amount of plastic in the mold cavity. After the injection is completed, the second cylinder 9 is started. The cylinder rod of the second cylinder 9 elongates and drives the sliding column 11 to drive the runner plug 19 to move into the second runner 25 until the runner plug 19 is engaged in the second runner 25. The cylinder rod of the first cylinder 8 elongates, and the piston block 17 moves in the reverse direction until its end face is flush with the surface of the male mold 15. The excess plastic in the mold cavity will be extruded to the communication port 26, and the plastic will flow back into the inner cavity of the deformation part 34, and an extrusion force is generated on the inner cavity wall of the deformation part 34, causing the deformation part 34 to expand elastically. As a result, the excess plastic flows back into the second runner 25 from the part where the deformation part 34 is expanded. When the excess plastic is discharged, the acting force of the plastic on the deformation part 34 disappears, and the deformation of the deformation part 34 is restored. After the sharp part of the deformation part 34 is restored, it will cut the plastic and at the same time separate the second runner 25 and the communication port 26. As the injection molding progresses, the foundation box mold after injection molding is finally obtained. After the injection molding is completed and the moving mold 3 and the fixed mold 6 are separated, first drive the piston block 17 to move in the direction of retracting 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 steps, so that the air blowing holes 22 on the air blowing column 18 are exposed). At the same time, the air blowing holes 22 on the air blowing column 18 are communicated with this gap. Then, the compressed air is transported to the gas passage 30 by the external compressed gas delivery system, so that the compressed air enters the blind hole 21 of the air blowing column 18 through the transition hole 28, and then is blown into the gap through the air blowing holes 22, increasing the air pressure in the gap. The foundation box mold is demolded by the air pressure. Compared with the prior art of using ejector pins for demolding, at least to a certain extent, the damage to the surface of the foundation box mold is reduced.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present 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 the movable mold (3) is provided with a plurality of female molds (4) on its surface, and the fixed mold (6) is provided with a plurality of male molds (15) cooperating with the female molds (4) on its surface, and an injection nozzle (14) is fixedly penetrated on the surface of the movable mold (3), and a flow channel mechanism is provided on a side of the movable mold (3) facing the fixed mold (6), and the flow channel mechanism is used to connect the injection nozzle (14) and the female mold (4), characterized in that: Also includes: A flow channel block (19) slidably engaged in a groove (29) provided on the surface of the fixed mold (6), wherein a through hole is provided on the surface of the flow channel block (19), and a plastic cutting piece is provided in the through hole, wherein the plastic cutting piece is used to cut the plastic in the flow channel mechanism when the material pressure in the inner cavity of the female mold (4) is consistent with the material pressure in the flow channel mechanism, and at the same time, the inner cavity of the female mold (4) and the flow channel mechanism are changed from a connected state to a disconnected state; A volume adjustment mechanism is provided on the fixed mold (6), and is used to adjust the volume of the inner cavity of the female mold (4).

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 is provided on the surface of the movable mold (3) for the guide column (5) to pass freely.

4. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: The flow channel mechanism comprises 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 arranged 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 arranged 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).

5. A cosmetic foundation box processing and forming mold according to claim 4, characterized in that: 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 connecting port (26).

6. A cosmetic foundation box processing and forming mold according to claim 5, characterized in that: The plastic cutting piece comprises a fixing ring (32) fixedly mounted on the openings on both sides of the through hole, the fixing ring (32) having one end away from the communicating opening (26) coaxially fixedly connected with a deformation portion (34), and the deformation portion (34) having one end away from the fixing ring (32) is sharp, the outer diameter of the deformation portion (34) decreases gradually in a direction away from the fixing ring (32), a plurality of deformation slits (33) are provided on the periphery of the deformation portion (34), and the deformation slits (33) are in communication with the inner cavity of the deformation portion (34).

7. 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).

8. A cosmetic foundation box processing and forming mold according to claim 1, characterized in that: The volume adjustment mechanism comprises 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).

9. A cosmetic foundation box processing and forming mold according to claim 8, characterized in that: A connecting rod (20) is fixedly connected to the end surface of the piston block (17); one end of the connecting rod (20) away from the piston block (17) slidably passes through the outer wall of the fixed mold (6); one end of a 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).

10. A cosmetic foundation box processing and forming mold according to claim 9, 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); 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); a gas channel (30) is provided on the outer wall of the fixed mold (6) and communicated with the transition hole (28); a mouth on one side of the gas channel (30) is connected via an air pipe (13).

Images