Water channel gas-assisted forming mold structure

Abstract

The utility model provides a water channel gas-assisted forming die structure, which comprises a die body, a first gas channel, a second gas channel, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe and a gas outlet pipe, and is characterized in that the die body is provided with a cavity for forming a workpiece; the inner wall forming part is arranged on the fixed die, one end of the inner wall forming part extends into the cavity and is used for forming part of the inner side face of the workpiece, the end, extending into the cavity, of the inner wall forming part is provided with a flash groove and a valve core matched with the flash groove, the valve core is connected with a driving assembly, and the driving assembly can drive the valve core to slide so as to open or close the flash groove; one end of the air blowing assembly communicates with the first air channel, the other end of the air blowing assembly extends into the cavity, and an air outlet hole is formed in the side face, facing the flash groove, of the air blowing assembly, so that blown-out air flow can force injection molding raw materials in a molten state in the cavity to enter the flash groove, a cavity channel is formed in the core of a workpiece, and a copper pin water channel middle section water channel is integrally formed; the problems of later welding treatment and corresponding poor welding are avoided, the process is simplified, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a water channel gas-assisted forming mold structure. Background Art

[0002] At present, the injection molding of the copper tube foot water channel in the faucet usually adopts the disassembly molding method, that is, the water channel in the middle of the product is disassembled into two parts, and then welded or encapsulated for the second time. The cost is high, and the welding process also has the risk of the internal water channel being easily collapsed, resulting in low flow or even no water.

[0003] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0004] The utility model provides a water channel gas-assisted forming mold structure, aiming to improve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a water channel gas-assisted forming mold structure, comprising:

[0006] The mold body has a mold cavity for molding a product, and a first air channel is provided therein for connecting with an external air supply device;

[0007] The inner wall molding component is arranged on the fixed mold, one end of which extends into the mold cavity and is used to mold part of the inner side of the workpiece, and the end extending into the mold cavity is provided with an overflow groove and a valve core adapted to the overflow groove, and the valve core is connected to a driving component, and the driving component can drive the valve core to slide to open or close the overflow groove;

[0008] The blowing assembly has one end connected to the first air channel and the other end extending into the cavity and having an air outlet on the side facing the overflow groove, so that the blown airflow can force the injection molding material in the molten state in the cavity to enter the overflow groove, so that a cavity channel is formed in the core of the workpiece.

[0009] As a further optimization, the blowing assembly includes a blowing component and an air needle, wherein the air needle is placed in the blowing component and forms a gap with the inner wall of the blowing component to communicate with the first air channel.

[0010] As a further optimization, one end of the valve core that cooperates with the overflow groove is provided with an inclined surface, and the sealing is performed by cooperating with the overflow groove through the inclined surface.

[0011] As a further optimization, it also includes an ejector module, which includes an ejector and an ejector assembly. The ejector assembly is arranged at the bottom of the mold body. One end of the ejector is connected to the ejector assembly, and the other end passes through the mold body and can push the workpiece when the workpiece is being molded, so that the ejector assembly can drive the ejector to move along the demolding direction to eject the workpiece.

[0012] As a further optimization, the inner wall molding component includes a fixed core and an overflow core, the fixed core is fixedly configured on the fixed mold, the overflow groove is arranged on the overflow core, the overflow core is slidably arranged in the fixed core, and extends through the mold body to be connected to the ejection assembly, so that the ejection assembly can drive the overflow core to move along the demolding direction.

[0013] As a further optimization, the ejection assembly includes a primary ejection component and a secondary ejection component, the primary ejection component is arranged at the bottom of the secondary ejection component, the overflow core is connected to the primary ejection component, and the ejector pin is connected to the secondary ejection component.

[0014] As a further optimization, the valve core is slidably arranged between the overflow core and the fixed core, a receiving groove is provided at the bottom of the mold body, and the driving assembly is placed in the receiving groove.

[0015] As a further optimization, the driving assembly includes a fixed plate, a connecting plate, a pressing plate and a cylinder, the fixed plate is fixedly connected to the bottom of the accommodating groove, the pressing plate is fixedly connected to the top of the accommodating groove and a cavity is formed between the pressing plate and the template, the cylinder is placed in the cavity, a second air channel for connecting an external device is provided in the mold body, the cavity is connected to the second air channel to control the extension and retraction of the cylinder through an external device, the connecting plate is slidably arranged in the accommodating groove, the protruding end of the cylinder passes through the pressing plate and is connected to the connecting plate, one end of the valve core extends into the accommodating groove and is connected to the connecting plate, and a spring is provided between the connecting plate and the fixed plate to keep the valve core and the overflow groove in a closed state at all times.

[0016] As a further optimization, the connecting plate includes an inner panel and an inner bottom plate, the inner bottom plate is attached to the bottom of the inner panel, the inner panel is connected to the protruding end of the cylinder, a slot is provided between the inner panel and the inner bottom plate, and the valve core is provided with a hanging platform adapted to the slot.

[0017] As a further optimization, sealing rings are provided between the cylinder and the inner wall of the cavity, between the pressure plate and the template, and between the extended end of the cylinder and the pressure plate.

[0018] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0019] The present application discloses a water channel gas-assisted molding mold structure, wherein an inner wall molding component is arranged on the fixed mold, one end of the inner wall molding component extends into the mold cavity, and is used to mold part of the inner side surface of the workpiece, and an overflow groove is arranged on the end extending into the mold cavity, and a valve core is movably arranged outside the overflow groove, and the valve core is driven to slide by a driving component to open or close the overflow groove, and a blowing component is also arranged on the fixed mold, one end of the blowing component is connected to the first air channel on the fixed mold plate, and the other end extends into the mold cavity, and an air outlet is opened on the side facing the overflow groove, so that the blown airflow can force the injection molding material in the molten state in the mold cavity to enter the overflow groove, so that a cavity channel is formed in the core of the workpiece. The faucet pin can be injection molded in one time, without disassembling the components for welding or secondary encapsulation after injection molding, thereby reducing costs and improving the efficiency of molding workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the transverse cross section of the mold of the utility model;

[0022] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 It is a schematic diagram of the longitudinal section of the mold of the utility model;

[0024] Figure 4 It is a partial cross-sectional schematic diagram of the valve core of the utility model in a closed state;

[0025] Figure 5 It is a partial cross-sectional schematic diagram of the valve core of the utility model in an open state;

[0026] Figure 6 It is a partial cross-sectional schematic diagram of the blowing component and the core of the utility model;

[0027] Figure 7 It is a partial cross-sectional schematic diagram of the overflow state of the utility model;

[0028] Figure 8 It is a cross-sectional schematic diagram of the utility model in a state of ejection after injection molding;

[0029] Fig. 9It is a cross-sectional schematic diagram of the utility model in the secondary ejection state after injection molding;

[0030] Fig.10 It is a cross-sectional schematic diagram of the utility model in the state of clearing overflow after injection molding;

[0031] Markings in the figure: 1-mold body; 11-cavity; 12-first air channel; 13-second air channel; 14-accommodating groove; 2-inner wall molding component; 21-fixed core; 22-overflow core; 23-overflow groove; 24-valve core; 25-inclined surface; 26-hanging table; 3-blowing assembly; 31-blowing component; 32-air needle; 33-air outlet; 34-gap; 4-ejector module; 41-ejector; 42-primary ejector component; 43-secondary ejector component; 51-fixed plate; 52-inner bottom plate; 53-inner panel; 54-slot; 55-pressing plate; 56-cylinder; 57-cavity; 58-spring; 59-sealing ring; 6-part; 61-cavity channel; 62-overflow. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] Example

[0034] Depend on Figures 1 to 10As shown, an embodiment of the utility model provides a water channel air-assisted molding mold structure, including: a mold body 1, an inner wall molding component 2 and a blowing component 3; the mold body 1 has a cavity 11 for molding a workpiece, including a movable mold part and a fixed mold part, and a first air channel 12 is provided in the mold body 1 for connecting with an external air supply device, and the first air channel 12 is provided in the fixed mold part; the inner wall molding component is configured on the fixed mold, one end of which extends into the mold cavity 11, and is used for molding part of the inner side surface of the workpiece, and the end extending into the mold cavity is provided with an overflow groove 23 and a valve core 24 adapted to the overflow groove 23, and the valve core 24 is connected to a driving component, and the driving component can drive the valve core 24 to slide to open or close the overflow groove 23. One end of the blowing assembly 3 is connected to the first air channel 12, and the other end extends into the cavity 11 and is provided with an air outlet 33 on the side facing the overflow groove 23, so that the blown airflow can force the injection molding material in the molten state in the cavity 11 to enter the overflow groove 23, so that the core of the product 6 forms a cavity channel 61. At the same time, the end of the blowing assembly 3 extending into the cavity 11 can also be used to mold part of the inner side of the product 6. The blowing assembly 3 includes a blowing component 31 and an air needle 32. The air needle 32 is placed in the blowing component 31 and forms a gap 34 with the inner side wall of the blowing component 31. The air needle 32 is connected to the first air channel 12 through the gap 34 to allow the airflow to enter.

[0035] Specifically, the inner wall molding component 2 includes a fixed core 21 and an overflow core 22. The fixed core 21 is fixedly arranged on the fixed mold, and the overflow core 22 is slidably arranged in the fixed core 21. The overflow core 22 is provided with an overflow groove 23. The valve core 24 is slidably arranged between the overflow core 22 and the fixed core 21. The end of the valve core 24 that cooperates with the overflow groove 23 is provided with an inclined surface 25. The inclined surface 25 cooperates with the overflow groove 23 to seal the glue, so that the end of the valve core 24 that cooperates with the overflow groove 23 is like a cutting knife. A receiving groove 14 is provided at the bottom of the mold body 1, and a driving assembly is placed in the receiving groove 14. The driving assembly includes a fixed plate 51, an inner bottom plate 52, an inner panel 53, a pressing plate 55 and a cylinder 56. The fixed plate 51 is fixedly connected to the bottom of the receiving groove 14, the pressing plate 55 is fixedly connected to the top of the receiving groove 14 and a cavity 57 is formed between the pressing plate 55 and the template, and the cylinder 56 is placed in the cavity 57. A second air channel 13 for connecting an external device is provided in the mold body 1, and the cavity 57 is communicated with the second air channel 13 to control the extension and retraction of the cylinder 56 through the external device. The inner bottom plate 52 is attached to the bottom of the inner panel 53, and the two are slidably placed in the receiving groove 14. The inner panel 53 is connected to the protruding end of the cylinder 56. A clamping groove 54 is provided between the inner panel 53 and the inner bottom plate 52. The valve core 24 is provided with a hanging platform 26 adapted to the clamping groove 54. The valve core 24 is constrained by the inner panel 53 and the inner bottom plate 52 through the coordination of the clamping groove 54 and the hanging platform 26. A spring 58 is provided between the inner bottom plate 52 and the fixed plate 51, so that the valve core 24 and the overflow groove 23 are normally kept in a closed state through the elastic force of the spring 58. A sealing ring 59 is provided between the cylinder 56 and the inner wall of the cavity 57, between the pressing plate 55 and the template of the mold body 1, and between the protruding end of the cylinder 56 and the pressing plate 55, which is used to seal the cavity 57.

[0036] Furthermore, it also includes an ejector module, which includes an ejector 41 and an ejector assembly. The ejector assembly is arranged at the bottom of the mold body 1, and includes a primary ejector component 42 and a secondary top component 43. The primary ejector component 42 is arranged at the bottom of the secondary ejector component 43. One end of the ejector 41 is connected to the secondary ejector component 43, and the other end passes through the template of the mold body 1 and can be connected to the workpiece 6 when the workpiece is formed. One end of the overflow core 22 extends through the template of the mold body 1 and is connected to the primary ejector component 42, so that the ejector assembly can drive the overflow core 22 and the ejector 41 to move along the demolding direction. It should be noted that the ejector component adopts an existing device, so it is not described in detail here.

[0037] When molding the part 6, the valve core 24 and the overflow groove 23 are initially in a closed state. After the molten injection molding material fills the cavity 11, the inner panel 53 and the inner bottom plate 52 are displaced by the control cylinder 56, and then the valve core 24 is driven to withdraw, so that the overflow groove 23 and the cavity 11 are connected; at the same time, nitrogen is supplied by an external air supply device, and the nitrogen is blown into the cavity 11 through the blowing assembly. The nitrogen is ejected from the air outlet 33, forcing the injection molding material still in a molten state in the cavity 11 to enter the overflow groove 23, so that a cavity channel 61 is formed in the core of the part 6; at this time, the control cylinder 56 is retracted, and the valve core 24 is driven to return to its original position by the action of the spring 58, so that the valve core 24 and the overflow groove 23 are closed again, so as to cut off the connection between the injection molding material in the cavity 11 and the injection molding material in the overflow groove 23. When the mold is opened, the primary ejector component 42 pushes the overflow core 22 and the ejector pin 41 to eject the core at the pin of the part 6, and then the secondary ejector component 43 pushes the ejector pin 41 to eject the part 6 from the overflow core 22, remove the part 6, and then clear the overflow 62 in the overflow groove 23 before closing the mold to enter the next injection molding cycle.

[0038] A water channel gas-assisted forming mold structure of the present application can realize the integrated forming of the middle section of the copper tube pin water channel, avoiding the problems of subsequent welding processing and its corresponding poor welding, simplifying the process and improving product quality.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water channel gas-assisted forming mold structure, characterized in that: include: The mold body has a mold cavity for molding a product, and a first air channel is provided therein for connecting with an external air supply device; The inner wall molding component is arranged on the fixed mold, one end of which extends into the mold cavity and is used to mold part of the inner side of the workpiece, and the end extending into the mold cavity is provided with an overflow groove and a valve core adapted to the overflow groove, and the valve core is connected to a driving component, and the driving component can drive the valve core to slide to open or close the overflow groove; The blowing assembly has one end connected to the first air channel and the other end extending into the cavity and having an air outlet on the side facing the overflow groove, so that the blown airflow can force the injection molding material in the molten state in the cavity to enter the overflow groove, so that a cavity channel is formed in the core of the workpiece.

2. A water channel gas-assisted forming mold structure according to claim 1, characterized in that The blowing assembly includes a blowing component and an air needle, wherein the air needle is placed in the blowing component and forms a gap with the inner wall of the blowing component to connect to the first air channel.

3. A water channel gas-assisted forming mold structure according to claim 1, characterized in that One end of the valve core that cooperates with the overflow groove is provided with an inclined surface, and the sealing is performed by cooperating with the overflow groove through the inclined surface.

4. A water channel gas-assisted forming mold structure according to claim 1, characterized in that , also includes an ejector module, the ejector module includes an ejector and an ejector assembly, the ejector assembly is arranged at the bottom of the mold body, one end of the ejector is connected to the ejector assembly, and the other end passes through the mold body and can push the workpiece when the workpiece is being molded, so that the ejector assembly can drive the ejector to move along the demolding direction to eject the workpiece.

5. A water channel gas-assisted forming mold structure according to claim 4, characterized in that The inner wall molding component includes a fixed core and an overflow core. The fixed core is fixedly configured on the fixed mold, and the overflow groove is arranged on the overflow core. The overflow core is slidably arranged in the fixed core and extends through the mold body to be connected to the ejection assembly, so that the ejection assembly can drive the overflow core to move along the demolding direction.

6. A water channel gas-assisted forming mold structure according to claim 5, characterized in that The ejection assembly includes a primary ejection component and a secondary ejection component, the primary ejection component is arranged at the bottom of the secondary ejection component, the overflow core is connected to the primary ejection component, and the ejector pin is connected to the secondary ejection component.

7. A water channel gas-assisted forming mold structure according to claim 5, characterized in that The valve core is slidably arranged between the overflow core and the fixed core, and a receiving groove is provided at the bottom of the mold body, and the driving assembly is placed in the receiving groove.

8. A water channel gas-assisted forming mold structure according to claim 7, characterized in that The driving assembly includes a fixed plate, a connecting plate, a pressing plate and a cylinder. The fixed plate is fixedly connected to the bottom of the receiving groove, the pressing plate is fixedly connected to the top of the receiving groove and a cavity is formed between the pressing plate and the template, the cylinder is placed in the cavity, and a second air channel for connecting an external device is provided in the mold body. The cavity is connected to the second air channel to control the extension and retraction of the cylinder through an external device. The connecting plate is slidably arranged in the receiving groove, the protruding end of the cylinder passes through the pressing plate and is connected to the connecting plate, one end of the valve core extends into the receiving groove and is connected to the connecting plate, and a spring is provided between the connecting plate and the fixed plate to keep the valve core and the overflow groove in a closed state at all times.

9. A water channel gas-assisted forming mold structure according to claim 8, characterized in that The connecting plate includes an inner panel and an inner bottom plate. The inner bottom plate is attached to the bottom of the inner panel. The inner panel is connected to the protruding end of the cylinder. A slot is provided between the inner panel and the inner bottom plate. The valve core is provided with a hanging platform adapted to the slot.

10. A water channel gas-assisted forming mold structure according to claim 8, characterized in that Sealing rings are provided between the cylinder and the inner wall of the cavity, between the pressure plate and the template, and between the protruding end of the cylinder and the pressure plate.

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