Forming device and injection mold

Abstract

The utility model relates to the technical field of manufacturing of vehicle accessories, in particular to a forming device and an injection mold, and aims to solve the problem that the thickness of an existing fan blade is not uniform easily in the forming process. In order to achieve the purpose, the forming device comprises a forming module, an air inlet module and a discharging module, the discharging module comprises a second insert, a discharging ejector pin and a discharging driving assembly, an ejector pin inserting hole and a discharging channel which are communicated with each other are formed in the second insert, and the discharging ejector pin is contained in the ejector pin inserting hole. The discharging driving piece is configured to drive the discharging ejector pin to move in the ejector pin insertion hole in the first direction so that the ejector pin insertion hole and the discharging channel can be communicated or closed. After the discharging channel is communicated with the ejector pin inserting hole, in the process that the air inlet module inflates air into the cavity, the air extrudes molten plastic to flow to the ejector pin inserting hole and flow to the discharging channel through the ejector pin inserting hole, the molten plastic continuously enters the cavity along with the air, a stable flowing path can be formed, and the thickness of the formed fan blade is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle accessories manufacturing, and specifically provides a molding device and an injection mold. Background Art

[0002] With the continuous improvement of the quality of life, vehicles have become one of the main means of transportation. The front grille of the vehicle is equipped with an active grille shutter (AGS), which includes a motor and fan blades. The vehicle can control the motor to adjust the angle of the fan blades according to its own state, thereby adjusting the air intake of the active grille. The fan blades of the active grille are under greater pressure, and higher strength requirements are placed on the fan blades. Therefore, the fan blades are generally set to an internal hollow structure, which can improve the structural strength of the fan blades while reducing the weight of the fan blades.

[0003] In the known technology, gas-assisted technology is used when the fan blades are formed, that is, in the process of forming the fan blades, gas is filled from one end of the fan blade mold to form a hollow structure in the middle part of the fan blade. However, in the current process of forming the fan blades, since the gas cannot be discharged after being filled into the mold (that is, it cannot flow freely), the gas will accumulate in the fan blade body. The closer to the inflation port, the larger the cross-section of the hollow part, and the thinner the thickness of the fan blade; on the contrary, the farther from the inflation port, the smaller the cross-section of the hollow part, and the thicker the thickness of the fan blade. The uneven thickness of the fan blade will cause the maximum torsional strength of the fan blade to be different in different parts. When the fan blade is rotated to adjust the angle, the fan blade is prone to damage at the place where the maximum torsional strength is weakest.

[0004] Therefore, there is an urgent need for a molding device and an injection mold to solve the problem of uneven thickness that is easily caused in the existing fan blade molding process. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem of uneven thickness that is easily occurred in the existing fan blade forming process.

[0006] In a first aspect, the utility model provides a molding device, comprising: a molding module, in which a molding cavity is arranged; an air intake module, connected to a first end of the molding module and capable of filling gas into the molding cavity; a discharge module, comprising a second insert, a discharge ejector and a discharge drive assembly, wherein the second insert is arranged at a second end of the molding module, and a discharge ejector hole and a discharge channel that are interconnected are opened in the second insert, the discharge ejector is accommodated in the ejector hole, and the discharge drive is configured to drive the discharge ejector to move in the ejector hole along a first direction so that the ejector hole is connected to or closed with the discharge channel.

[0007] In a specific embodiment of the above-mentioned molding device, the molding device is provided with an exhaust gap, one end of the exhaust gap is connected to the discharge channel or the waste tank, and the other end is emptied.

[0008] In a specific embodiment of the above-mentioned molding device, the molding module includes a pressure-bearing member and a pressure-applying member, a waste groove is provided on the pressure-bearing member or the pressure-applying member, and an end of the discharge channel away from the ejector pin socket is connected to the waste groove.

[0009] In a specific embodiment of the above-mentioned forming device, a positioning block is provided on a side of the pressure-bearing member facing the pressure-applying member, a positioning groove is provided on a side of the pressure-applying member facing the pressure-bearing member, and the positioning block is plug-fitted with the positioning groove.

[0010] In a specific embodiment of the above-mentioned molding device, the pressure-bearing member is provided with an exhaust groove, and the exhaust groove is communicated with the discharge channel; the molding device also includes an exhaust module, and the exhaust module includes an exhaust ejector pin and an exhaust drive assembly, the exhaust ejector pin is accommodated in the exhaust groove, and an exhaust gap is provided between the exhaust ejector pin and the side wall of the exhaust groove, and the exhaust drive assembly is configured to drive the exhaust ejector pin to move in the exhaust groove.

[0011] In a specific embodiment of the above-mentioned forming device, the discharge module includes a linkage assembly, the linkage assembly includes a linkage block and a shift rod, a socket hole is provided on the second insert, the shift rod is inclined along the first direction and the second direction, the first end of the shift rod is fixed to the linkage block, and the second end of the shift rod is inserted into the socket hole; the linkage block and the shift rod are configured to: move back and forth along the second direction to drive the second insert to move back and forth along the first direction.

[0012] In a specific embodiment of the above-mentioned molding device, the discharge ejector pin includes a first section and a second section, the first section is close to the molding module, and the diameter of the first section is smaller than the diameter of the second section; the ejector pin socket includes a first hole and a second hole, the first hole is adapted to the first section, and the second hole is adapted to the second section.

[0013] In a specific embodiment of the above-mentioned molding device, the molding device also includes a positioning module for locating the position of the discharge ejector pin, the positioning module includes a limit switch and a trigger member, the trigger member is connected to the output end of the discharge drive member, the limit switch is electrically connected to the discharge drive member, and the limit switch is configured as follows: the trigger member closes the discharge drive member after triggering the limit switch.

[0014] In a specific embodiment of the above-mentioned forming device, the limit switch includes a first limit switch and a second limit switch, and the first limit switch and the second limit switch are arranged along the first direction.

[0015] In a second aspect, the utility model provides an injection mold, comprising the above-mentioned molding device.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The molding device provided by the utility model includes a molding module, an air intake module and a discharge module, wherein a molding cavity is arranged in the molding module; the air intake module is connected to the first end of the molding module and can fill gas into the molding cavity; the discharge module includes a second insert, a discharge ejector pin and a discharge drive assembly, wherein the second insert is arranged at the second end of the molding module, wherein an ejector pin socket and a discharge channel that are interconnected are provided in the second insert, wherein the discharge ejector pin is accommodated in the ejector pin socket, and wherein the discharge drive member is configured to drive the discharge ejector pin to move in the ejector pin socket along a first direction so that the ejector pin socket is connected or closed with the discharge channel. When the discharge channel is connected with the ejector pin socket, during the process of the air intake module filling gas into the molding cavity, the gas squeezes the molten plastic to flow to the ejector pin socket, and then flows to the discharge channel through the ejector pin socket. As the gas continuously enters the molding cavity, a relatively stable flow path can be formed, so that a cavity with a uniform cross section is formed in the molten plastic filled in the molding cavity. When the discharge channel and the ejector pin hole are closed, the gas entering the cavity cannot flow out normally. At this time, the gas filled in the cavity can form a stable air pressure, making the cavity cross-section of the molten plastic filled in the cavity more uniform. After the molten plastic cools, a relatively uniform cavity can be formed in the fan blade, that is, the thickness of the fan blade is relatively uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of the molding device provided by the utility model;

[0020] Figure 2 It is an exploded view of the forming device provided by the utility model;

[0021] Figure 3 It is an exploded view of some parts of the molding device provided by the utility model;

[0022] Figure 4 It is a structural diagram of the pressure-bearing member provided by the utility model;

[0023] Figure 5 It is a structural diagram of the pressure member provided by the utility model;

[0024] Figure 6It is a cross-sectional view of the molding device provided by the utility model on the XY plane;

[0025] Figure 7 It is a schematic cross-sectional structure diagram of the second insert and the ejector pin in the molding device provided by the utility model;

[0026] Figure 8 It is a cross-sectional view of the forming device provided by the utility model on the XZ plane;

[0027] Fig. 9 It is a cross-sectional view of the forming device to be provided by the utility model on the YZ plane.

[0028] Description of reference numerals:

[0029] 0, molding module; 1, pressure-bearing part; 11, positioning block; 12, exhaust groove; 2, pressure-applying part; 21, positioning groove; 01, cavity; 011, first cavity; 012, second cavity; 02, first mounting position; 03, second mounting position; 04, first waste trough; 05, second waste trough;

[0030] 3. Discharge module; 31. Second insert; 311. Ejector plug hole; 3111. First hole; 3112. Second hole; 312. Discharge channel; 313. Socket hole; 33. Discharge ejector; 331. First section; 332. Second section; 34. Discharge drive assembly; 35. Ejector fixing block;

[0031] 4. linkage assembly; 41. linkage block; 42. lever;

[0032] 5. air intake module; 51. first insert; 52. air intake pipe;

[0033] 6. Exhaust module; 61. Exhaust ejector pin; 62. Exhaust drive assembly; 621. Drive cylinder; 622. Drive template;

[0034] 7. Positioning module; 71. First limit switch; 72. Second limit switch; 73. Trigger. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In order to solve the problem of uneven thickness in the existing fan blade molding process, the utility model provides a molding device. Of course, the utility model uses the fan blade as an example for explanation. Without deviating from the principle of the utility model, the molded part can also be an injection molded part with a uniform cavity structure in the middle.

[0039] like Figures 1 to 3 As shown, the molding device includes a molding module 0, an air intake module 5 and a discharge module 3. The molding module 0 is provided with a cavity 01 for molding fan blades, and the molten material of the injection molding enters the cavity 01 and is filled to form the shape of the fan blade. The air intake module 5 and the discharge module 3 are respectively connected to the first end and the second end of the molding module 0, and the air intake module 5 fills the cavity 01 with gas, and the gas generally filled with non-oxidizing gas such as nitrogen is used to avoid oxidation of the molten injection molding material. In the process of the air intake module 5 filling the cavity 01 with gas, the gas will squeeze the injection molding material to flow and be discharged from the discharge module 3, so that the excess injection molding material is discharged to ensure that a hollow structure with a relatively uniform cross-section can be formed in the fan blade, that is, to ensure that the thickness of the fan blade is relatively uniform.

[0040] Combination Figure 4 and Figure 5As shown, the molding module 0 includes a pressure-bearing member 1 and a pressure-applying member 2, and the pressure-bearing member 1 and the pressure-applying member 2 cooperate with each other along the second direction. A first cavity 011 is provided on the pressure-bearing member 1, and a second cavity 012 is provided on the pressure-applying member 2. After the pressure-bearing member 1 and the pressure-applying member 2 are aligned and closed along the second direction, the first cavity 011 and the second cavity 012 are aligned and combined to form a cavity 01. A positioning block 11 is provided on the side of the pressure-bearing member 1 facing the pressure-applying member 2, and a positioning groove 21 is provided on the side of the pressure-applying member 2 facing the pressure-bearing member 1. After the pressure-bearing member 1 and the pressure-applying member 2 are aligned and closed, the positioning block 11 is plugged into and matched with the positioning groove 21 to position the pressure-bearing member 1 and the pressure-applying member 2 to ensure that the pressure-bearing member 1 and the pressure-applying member 2 can be aligned.

[0041] like Figure 6 and Figure 8 As shown, the air intake module 5 includes a first insert 51 and an air intake pipe 52. The first ends of the pressure-bearing member 1 and the pressure-applying member 2 are provided with a first mounting position 02, and the first insert 51 is accommodated in the first mounting position 02. An air intake groove is provided in the first insert 51, and the air intake pipe 52 is accommodated in the air intake groove, and the air intake pipe 52 can be connected to the cavity 01, so as to inject gas into the cavity 01.

[0042] The discharge module 3 includes a second insert 31 ( Figure 6 In the figure, the second insert 31 includes a plurality of components, which are fixedly combined to form the second insert 31, wherein the components located at the second mounting position 03 are hidden), a discharge ejector 33 and a discharge drive assembly 34. The second ends of the pressure-bearing member 1 and the pressure-applying member 2 are provided with a second mounting position 03, and the second insert 31 is accommodated in the second mounting position 03. An ejector pin socket 311 and a discharge channel 312 are provided in the second insert 31, the ejector pin socket 311 extends along the first direction and is connected to the cavity 01, and the discharge channel 312 is connected to the side of the ejector pin socket 311. The discharge ejector 33 is accommodated in the ejector pin socket 311, and the exhaust drive assembly 62 is configured to drive the discharge ejector 33 to move in the ejector pin socket 311 along the first direction. As the discharge ejector 33 moves in the ejector pin socket 311, the discharge ejector 33 can block or open the discharge channel 312. When the discharge channel 312 is connected to the ejector pin hole 311, during the process of the air intake module 5 filling the cavity 01 with gas, the gas squeezes the molten plastic to flow to the ejector pin hole 311, and then flows to the discharge channel 312 through the ejector pin hole 311. As the gas continuously enters the cavity 01, a relatively stable flow path can be formed, so that a cavity with a uniform cross-section is formed in the molten plastic filled in the cavity 01. When the discharge channel 312 and the ejector pin hole 311 are closed, the gas entering the cavity 01 cannot flow out normally. At this time, the gas filled in the cavity 01 can form a stable air pressure, so that the cavity cross-section in the molten plastic filled in the cavity 01 is more uniform. After the molten plastic is cooled, a relatively uniform cavity can be formed in the fan blade, that is, the thickness of the fan blade is relatively uniform.

[0043] The material discharging drive assembly 34 is specifically a cylinder. Of course, without departing from the principle of the present invention, in other embodiments, those skilled in the art may also set the material discharging drive assembly 34 to be a cylinder or other assembly capable of reciprocating linear motion.

[0044] like Figure 7 As shown, the ejector pin 33 includes a first section 331 and a second section 332, and the ejector pin socket 311 includes a first hole 3111 and a second hole 3112. The first section 331 is close to the molding module 0, and the diameter of the first section 331 is smaller than the diameter of the second section 332. The ejector pin socket 311 includes a first hole 3111 and a second hole 3112, the first hole 3111 is close to the molding module 0 and is directly connected to the mold cavity 01, and the ejector channel 312 is connected to the first hole 3111, and the diameter of the first hole 3111 is smaller than the diameter of the second hole 3112. The first section 331 is plugged and matched with the first hole 3111, and the second section 332 is plugged and matched with the second hole 3112. When the second section 332 moves in the second hole 3112 until the second section 332 abuts against the end of the second hole 3112, the ejector pin 33 stops, and the stroke of the ejector pin 33 is limited. At this time, the ejector pin 33 completely blocks the ejector pin socket 311.

[0045] like Figure 1 and Figure 2 As shown, the discharge module 3 also includes a linkage assembly 4, which can drive the second insert 31 to move along the first direction, so that the second insert 31 can be close to the forming module 0 to cooperate with each other or away from the forming module 0 to disengage from each other. Specifically, the linkage assembly 4 includes a linkage block 41 and a lever 42, and the lever 42 is tilted along the first direction and the second direction. A socket 313 is provided on the second insert 31, and the extension direction of the socket 313 is parallel to the length direction of the lever 42. The first end of the lever 42 is fixedly connected to the linkage block 41, and the second end of the lever 42 is inserted into the socket 313, and can move in the socket 313 along the extension direction of the socket 313. The linkage block 41 reciprocates along the second direction, and the linkage block 41 can drive the lever 42 to reciprocate along the second direction. During the reciprocating movement of the lever 42 along the second direction, the lever 42 can move relative to the second insert 31 along the length direction of the lever 42, and at the same time drive the second insert 31 to reciprocate along the first direction, so that the second insert 31 is close to the molding module 0 to cooperate with each other or away from the molding module 0 to separate from each other. After the second insert 31 is separated from the molding module 0, the plastic in the second insert 31 can be broken from the plastic in the molding module 0, and after the pressure-bearing member 1 and the pressure-applying member 2 are separated, the formed fan blade can fall smoothly.

[0046] like Fig. 9As shown, a venting groove 12 is provided in the pressure bearing member 1, and the venting groove 12 is connected to the discharge channel 312. In a specific example of the utility model, the venting groove 12 extends along the second direction and is arranged below the discharge channel 312. The molding device also includes an exhaust module 6. The exhaust module 6 includes an exhaust ejector pin 61 and an exhaust drive assembly 62, a part of the exhaust ejector pin 61 is accommodated in the exhaust groove 12, and the exhaust drive assembly 62 is configured to drive the exhaust ejector pin 61 to move in the exhaust groove 12. There is an exhaust gap between the exhaust ejector pin 61 and the side wall of the exhaust groove 12, and the width of the exhaust gap is less than the overflow value of the molten plastic. At this time, the gas can be discharged from the exhaust gap and the molten plastic will not overflow from the exhaust gap. The width of the exhaust gap is generally 0.02mm to 0.04mm. In the process of continuously injecting gas into the cavity 01 by the air intake module 5, the gas passes through the cavity 01, squeezes the molten plastic in the cavity 01 so that it is discharged from the cavity 01 from the discharge channel 312. After the pressure in the cavity 01 is stabilized, the molten plastic in the cavity 01 forms a uniform and continuous cavity in the middle, and the excess gas passes through the cavity and the discharge channel 312 and is discharged through the exhaust gap.

[0047] In addition, the exhaust pin 61 can also pass through the exhaust groove 12 into the discharge channel 312 to change the flow resistance of the molten plastic in the discharge channel 312. The longer the exhaust pin 61 enters the discharge channel 312, the smaller the flow cross section of the molten plastic in the discharge channel 312, and the greater the flow resistance. The greater the flow resistance of the molten plastic, the faster the speed of gas filling into the mold cavity 01, and the faster the speed of the molten plastic in the mold cavity 01 forming a continuous cavity in the middle.

[0048] In a specific example of the present utility model, the exhaust drive assembly 62 specifically includes a drive cylinder 621 and a drive template 622, the output end of the drive cylinder 621 is fixedly connected to the drive template 622, and the exhaust ejector pin 61 is fixedly connected to the drive template 622. After the drive cylinder 621 is extended and retracted along the second direction, it can drive the drive template 622 and the exhaust ejector pin 61 to move along the second direction, and change the length of the exhaust ejector pin 61 inserted into the discharge channel 312. Of course, without departing from the principle of the present utility model, those skilled in the art can also set the exhaust drive assembly 62 to other components that can achieve linear reciprocating movement, such as a cylinder, etc.

[0049] like Figure 4 and Figure 5 As shown, a waste trough is provided on the pressure bearing member 1 and / or the pressure applying member 2, and the end of the discharge channel 312 away from the ejector pin insertion hole 311 is connected to the waste trough. Waste discharged from the cavity 01 into the discharge channel 312 can enter the waste trough for storage. After the fan blade is formed, the waste can be demoulded and discharged together with the fan blade.

[0050] In a specific example of the present invention, the waste trough includes a first waste trough 04 and a second waste trough 05. The first waste trough 04 is provided on a side surface of the pressure member 2 close to the pressure member 1, and the second waste trough 05 is provided on a side surface of the pressure member 1 close to the pressure member 2. After the pressure member 1 is aligned and merged with the pressure member 2, the first waste trough 04 and the second waste trough 05 are connected, and the first waste trough 04 is connected with the discharge channel 312. At this time, the waste in the discharge channel 312 can enter the first waste trough 04 and then flow into the second waste trough 05. Of course, without departing from the principle of the present invention, in other embodiments, those skilled in the art may also set the waste trough on the pressure member 1 or the pressure member 2, which should all be included in the protection scope of the present invention.

[0051] In addition, regarding the setting of the exhaust gap, although in the example of the present invention, the exhaust gap is set between the exhaust pin 61 and the side wall of the exhaust groove 12, this is not a specific limitation of the present invention. Without departing from the principle of the present invention, those skilled in the art can set the exhaust gap between the pressure-bearing member 1 and the pressure-applying member 2, and the exhaust gap is connected to the waste groove.

[0052] like Figure 1 and Figure 2 As shown, the molding device further includes a positioning module 7, which is used to locate the position of the discharge ejector 33 to prevent the discharge ejector 33 from excessive movement. Specifically, the positioning module 7 includes a limit switch and a trigger 73. The limit switch includes a first limit switch 71 and a second limit switch 72 arranged along the first direction, wherein the first limit switch 71 is close to the molding module 0. The trigger 73 is fixedly connected to the output end of the discharge drive assembly 34, and the first limit switch 71 and the second limit switch 72 are electrically connected to the discharge drive assembly 34. As the discharge drive assembly 34 drives the discharge ejector 33 to reciprocate along the first direction, the trigger 73 also reciprocates along the first direction. Once the trigger 73 triggers the first limit switch 71 or the second limit switch 72, the discharge drive assembly 34 is closed, so that the discharge ejector 33 no longer moves to prevent the discharge ejector 33 from excessive movement. The first limit switch 71 is used to limit the limit position of the ejector pin 33 moving toward the cavity 01 , and the second limit switch 72 is used to limit the limit position of the ejector pin 33 moving away from the cavity 01 .

[0053] The output end of the discharge drive assembly 34 is fixedly connected to the ejector fixing block 35, and the discharge ejector 33 is fixed to the ejector fixing block 35. The trigger member 73 is specifically L-shaped, with one end of the trigger member 73 fixed to the ejector fixing block 35, and the other end of the trigger member 73 is located between the first limit switch 71 and the second limit switch 72, so that the trigger member 73 can contact the first limit switch 71 or the second limit switch 72.

[0054] Of course, without departing from the principle of the present invention, those skilled in the art may also set a single limit switch to limit the limit position of the ejector pin 33 moving away from the cavity 01 .

[0055] The utility model also provides an injection mold, comprising the above-mentioned molding device, wherein the molding device can be provided with multiple sets, and the multiple sets of molding devices are opened at the same time to mold multiple fan blades at the same time.

[0056] In summary, the working steps of the molding device provided by the utility model are:

[0057] S1 , the pressure-applying member 2 and the pressure-receiving member 1 are aligned and fitted to form the cavity 01 , and the first insert 51 and the second insert 31 fit the pressure-receiving member 1 and the pressure-applying member 2 .

[0058] S2 . Inject molten plastic into the mold cavity 01 . After filling the mold cavity 01 to 95% to 99% of its volume, inject nitrogen into the mold cavity 01 through the air inlet pipe 52 .

[0059] S3, the discharge drive assembly 34 drives the discharge ejector pin 33 to move in the first direction and away from the cavity 01, so that the discharge channel 312 is connected with the ejector pin socket 311. Under the pressure of the nitrogen gas injected by the air inlet pipe 52, the excess molten plastic enters the discharge channel 312 from the ejector pin socket 311, and then flows to the waste tank.

[0060] S4. The exhaust drive assembly 62 drives the exhaust ejector pin 61 to move downward in the second direction, reducing the length of the exhaust ejector pin 61 inserted into the discharge channel 312 to reduce the flow resistance of the molten plastic, that is, reducing the gas pressure in the discharge channel 312 and the cavity 01, which helps to accelerate the formation of the hollow cavity in the fan blade.

[0061] S5. When the hollow cavity in the fan blade is formed to 99.5%, the discharge drive assembly 34 drives the discharge ejector pin 33 to move toward the cavity 01, blocks the ejector pin hole 311 and the discharge channel 312, and continues to inject 0.5% of nitrogen required for molding the hollow cavity in the fan blade into the cavity 01 to ensure that both ends of the fan blade are in a closed state.

[0062] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A molding device, characterized in that: include: A molding module (0) having a molding cavity (01) disposed therein; An air intake module (5) connected to the first end of the molding module (0) and capable of filling gas into the molding cavity (01); The discharge module (3) comprises a second insert (31), a discharge ejector pin (33) and a discharge drive assembly (34), wherein the second insert (31) is arranged at the second end of the molding module (0), and the second insert (31) is provided with an ejector pin hole (311) and a discharge channel (312) which are connected to each other, the ejector pin hole (311) is connected to the mold cavity (01), the discharge ejector pin (33) is accommodated in the ejector pin hole (311), and the discharge drive assembly (34) is configured to drive the discharge ejector pin (33) to move in the ejector pin hole (311) along a first direction so that the ejector pin hole (311) is connected to or closed with the discharge channel (312).

2. The molding device according to claim 1, characterized in that: The molding module (0) comprises a pressure-bearing member (1) and a pressure-applying member (2), and a waste groove is provided on the pressure-bearing member (1) and / or the pressure-applying member (2), and an end of the discharge channel (312) away from the ejector pin insertion hole (311) is connected to the waste groove.

3. The molding device according to claim 2, characterized in that: The pressure-bearing member (1) is provided with a positioning block (11) on one side facing the pressure-applying member (2), and the pressure-applying member (2) is provided with a positioning groove (21) on one side facing the pressure-bearing member (1), and the positioning block (11) is plug-fitted into the positioning groove (21).

4. The molding device according to claim 2, characterized in that: The molding device is provided with an exhaust gap, one end of which is connected to the discharge channel (312) or the waste tank, and the other end of which is emptied.

5. The molding device according to claim 4, characterized in that: The pressure bearing member (1) is provided with an exhaust groove (12), and the exhaust groove (12) is communicated with the discharge channel (312); The molding device further comprises an exhaust module (6), the exhaust module (6) comprising an exhaust pin (61) and an exhaust drive assembly (62), the exhaust pin (61) being accommodated in the exhaust groove (12), an exhaust gap being provided between the exhaust pin (61) and a side wall of the exhaust groove (12), and the exhaust drive assembly (62) being configured to drive the exhaust pin (61) to move in the exhaust groove (12).

6. The molding device according to claim 1, characterized in that: The discharge module (3) comprises a linkage assembly (4), the linkage assembly (4) comprises a linkage block (41) and a lever (42), a socket hole (313) is arranged on the second insert block (31), the lever (42) is arranged obliquely along the first direction and the second direction, a first end of the lever (42) is fixed to the linkage block (41), and a second end of the lever (42) is inserted into the socket hole (313); The linkage block (41) and the shifting rod (42) are configured to reciprocate along the second direction to drive the second insert (31) to reciprocate along the first direction.

7. The molding device according to claim 1, characterized in that: The ejector pin (33) comprises a first section (331) and a second section (332), wherein the first section (331) is close to the molding module (0), and the diameter of the first section (331) is smaller than the diameter of the second section (332); the ejector pin insertion hole (311) comprises a first hole (3111) and a second hole (3112), wherein the first hole (3111) is plugged into the first section (331), and the second hole (3112) is plugged into the second section (332).

8. The molding device according to claim 1, characterized in that: The molding device further comprises a positioning module (7) for locating the position of the discharge ejector pin (33), the positioning module (7) comprising a limit switch and a trigger member (73), the trigger member (73) being connected to the output end of the discharge drive assembly (34), the limit switch being electrically connected to the discharge drive assembly (34), and the limit switch being configured such that the discharge drive assembly (34) is closed after the trigger member (73) triggers the limit switch.

9. The forming device according to claim 8, characterized in that: The limit switch comprises a first limit switch (71) and a second limit switch (72), and the first limit switch (71) and the second limit switch (72) are arranged along the first direction.

10. An injection mold, characterized in that: Comprising a forming device as claimed in any one of claims 1 to 9.

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