An exhaust structure of a die-casting mold for an optical module housing

Abstract

The present invention discloses an exhaust structure of a die-casting mold for an optical module housing, comprising an exhaust device, one end of the exhaust device is provided with a waste pipe connected to the mold, an upper end surface of the exhaust device begins to have a feeding port, an exhaust chamber and a discharge chamber are opened inside the exhaust device, the exhaust chamber and the discharge chamber are connected through an overflow groove, the exhaust chamber is slidably connected with a piston push plate, the piston push plate is driven to move by a driving rod, an oscillation mechanism for oscillating is rotatably embedded inside the exhaust chamber, the discharge chamber is elastically connected with a discharge mechanism, and the discharge chamber is connected with a waste pipe. The device improves the existing die-casting process, treats the die-casting liquid by setting a pre-exhaust structure before die-casting, and reduces the generation of bubbles during the die-casting process.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting equipment, and in particular to an exhaust structure of a die-casting mold for an optical module housing. Background Art

[0002] Die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting die forging machine. The basic process of die casting is: the molten metal is first cast and filled into the mold cavity at a low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged with the cooling process of the molten metal, which not only eliminates the shrinkage and porosity defects of the blank, but also makes the internal structure of the blank reach the broken grains in the forged state. The comprehensive mechanical properties of the blank are significantly improved.

[0003] Chinese patent publication number CN105880517B discloses a closed slider die-casting mold with exhaust function, including: a movable mold, a fixed mold, a base, and a core-pulling slider; the positioning hole on the movable mold cooperates with the positioning column on the fixed mold; one end of the base is embedded in the movable mold and connected to the core-pulling slider; the other end is provided with a stepped groove; and the core-pulling slider includes: a first slag bag channel, each with a vertical groove arranged along the width direction of the core-pulling slider; two second slag bag channels, and the two second slag bag channels are respectively located on the side walls of the two vertical grooves; wherein the fixed mold includes a slag bag groove, and the position of the slag bag groove corresponds to the position of the first slag bag channel. The die-casting mold provided by the present invention solves the problem of internal pore accumulation of products due to poor exhaust during the die-casting production process, or poor filling of products such as cold shut and sand holes on the surface of the products.

[0004] Most of the existing technologies have improved the exhaust effect of the mold, but have ignored the pretreatment of the die-casting liquid. Especially in the vacuum die-casting process, due to the exhaust of air in the mold, tiny gases such as bubbles inside the die-casting liquid will have a great impact on the die-casting quality. Therefore, it is necessary to pay attention to the exhaust treatment of the die-casting liquid during vacuum die-casting.

[0005] Therefore, it is necessary to provide an optical module housing die-casting mold exhaust structure to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an optical module housing die-casting mold exhaust structure to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust structure of a die-casting mold for an optical module housing, comprising an exhaust device, one end of the exhaust device is provided with a waste pipe connected to the mold, the upper end surface of the exhaust device begins to have a feeding port, the interior of the exhaust device is provided with an exhaust chamber and a discharge chamber, the exhaust chamber and the discharge chamber are connected through an overflow groove, the interior of the exhaust chamber is slidably connected to a piston push plate, the piston push plate is driven to move by a drive rod, the interior of the exhaust chamber is rotatably embedded with an oscillation mechanism for oscillating, the interior of the discharge chamber is elastically connected to a discharge mechanism, and the discharge chamber is connected to a waste pipe.

[0008] Furthermore, the exhaust cavity and the discharge cavity are partially connected through an overflow groove, and the die-casting liquid is fed into the exhaust cavity through a feeding port, and a certain amount of overflow is left when feeding.

[0009] As a further solution of the present invention, the discharge mechanism includes a push plate and a sealing plate, the sealing plate is elastically connected to the inside of the discharge chamber, the push plate is fixedly connected to the bottom of the sealing plate, the push plate is used to close the overflow groove, and the sealing plate is used to clean the waste inside the discharge chamber to the inside of the waste pipe.

[0010] Furthermore, the cross section of the sealing plate is adapted to the discharge cavity, and the length of the pushing plate is adapted to the overflow groove.

[0011] As a further solution of the present invention, the cross-section of the oscillation mechanism is arc-shaped, a plurality of oscillation components are evenly embedded on the surface of the oscillation mechanism, a driving groove begins to be provided on the surface of the oscillation mechanism, a limiting rod is elastically embedded inside the piston push plate, and the limiting rod passes through the piston push plate and extends to the inside of the driving groove.

[0012] Furthermore, an arc-shaped protrusion is provided at the end of the limiting rod, and the driving sliding groove is corrugated.

[0013] As a further solution of the present invention, a fixing plate is provided on one side of the piston push plate, the fixing plate is in contact with the surface of the oscillation mechanism, and the oscillation mechanism is provided with a slot adapted to the oscillation component.

[0014] Furthermore, the fixing plate is provided with a through hole matched with the limiting rod, and the inner wall of the exhaust cavity is provided with a sealing plate groove matched with the fixing plate.

[0015] As a further solution of the present invention, a clamping block is elastically embedded in the bottom of the sealing plate, and the clamping block is adapted to the overflow groove. The side end face of the clamping block is fixedly connected to a limiting slider. A limiting slide groove adapted to the limiting slider is provided on the inner wall of the overflow groove. The limiting slide groove is arranged in an "L" shape, and a bevel groove is provided at the end of the driving slide groove.

[0016] Furthermore, one side of the clamping block and the sealing plate is provided with an inclined surface portion, which facilitates the upward movement of the clamping block and the separation of the waste liquid by the sealing plate.

[0017] As a further solution of the present invention, a deflection groove adapted to the oscillation mechanism is provided on the inner wall of the exhaust chamber, a limiting arc rod is penetrated inside the deflection groove, the limiting arc rod is fixedly connected to the inside of the deflection groove, one end of the oscillation component is rotatably connected to the limiting arc rod, and the other end of the oscillation component is rotatably connected to the oscillation mechanism.

[0018] Furthermore, an oscillation groove adapted to the deflection of the oscillation component is provided inside the oscillation mechanism, the oscillation component is rotationally connected to the limit arc rod and the oscillation mechanism respectively through a rotating shaft, and a flexible layer is provided at the connection between the oscillation component and the oscillation mechanism for buffering and sealing.

[0019] As a further solution of the present invention, an extension plate covering the closed deflection groove extends from the end of the oscillation mechanism, an airtight cavity discharge mechanism is provided inside the oscillation component, both ends of the airtight cavity discharge mechanism are connected with the deflection grooves at both ends of the oscillation mechanism through exhaust holes and air inlet holes, an airtight slider is slidably connected inside the airtight cavity discharge mechanism, an oscillation plate is slidably fitted on the upper end surface of the airtight slider, and a plurality of groups of protrusions are provided at the fitting position between the oscillation plate and the airtight slider.

[0020] As a further solution of the present invention, the oscillation component is internally slidably connected with an oscillation plate, and the oscillation component is provided with a sliding cavity adapted to the oscillation plate. The sliding cavity is connected to the deflection groove through an exhaust hole and an air inlet hole, and a buffer layer is provided on the top and bottom of the sliding cavity.

[0021] Furthermore, the limiting arc rod can also be used as a gas connecting piece, and a connecting hole feeding port is opened through the limiting arc rod, so that the air inlet and the like can be connected with the deflection groove through the connecting hole feeding port.

[0022] When the present invention is used, the die-casting liquid is fed into the exhaust chamber through the feeding port, and the piston push plate is driven to move in the exhaust chamber by the driving rod. When the piston push plate moves to a suitable position, the tiny bubbles contained in the die-casting liquid are shaken and broken by the oscillation mechanism, and then float up, overflow into the discharge chamber through the overflow groove, and are discharged through the waste pipe, collected and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the oscillation mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the piston push plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the surface unfolding structure of the oscillation mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the fixed plate structure of the present invention;

[0031] Figure 8 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0032] Fig. 9 It is a schematic diagram of the structure of the discharging mechanism of the present invention;

[0033] Fig.10 It is a schematic diagram of the overflow tank structure of the present invention;

[0034] Fig.11 The present invention Figure 3 The enlarged structural diagram at B in the middle;

[0035] Fig.12 is a schematic diagram of the structure of the oscillation mechanism of Embodiment 2 of the present invention;

[0036] Fig.13 It is a schematic diagram of the structure of the oscillation mechanism of embodiment 3 of the present invention.

[0037] In the figure: 1, injection port; 2, waste pipe; 3, exhaust device; 4, feeding port; 5, driving rod; 6, exhaust chamber; 7, overflow groove; 8, discharge mechanism; 9, discharge chamber; 10, piston push plate; 11, oscillation mechanism; 12, die casting liquid; 13, push plate; 14, sealing plate; 15, oscillation assembly; 16, limit arc rod; 17, sealing plate groove; 18, extension plate; 19, limit rod; 20, fixed plate; 2 1. Arc-shaped protrusion; 22. Snap-in block; 23. Limiting slider; 24. Inclined portion; 25. Limiting slide groove; 26. Inclined groove; 27. Driving slide groove; 28. Flexible layer; 29. ​​Oscillation groove; 30. Rotating shaft; 31. Buffer layer; 32. Oscillation plate; 33. Exhaust hole; 34. Connecting hole; 35. Inlet hole; 36. Protrusion; 37. Airtight slider; 38. Airtight cavity; 39. Via hole; 40. Slot. DETAILED DESCRIPTION

[0038] Embodiment 1

[0039] like Figure 1 - Figure 3 As shown, an exhaust structure of a die-casting mold for an optical module housing includes an exhaust device 3, one end of the exhaust device 3 is provided with a waste pipe 2 connected to the mold, the upper end surface of the exhaust device 3 begins to have a feeding port 4, the exhaust device 3 is provided with an exhaust chamber 6 and a discharge chamber 9, the exhaust chamber 6 and the discharge chamber 9 are connected through an overflow groove 7, the exhaust chamber 6 is slidably connected to a piston push plate 10, the piston push plate 10 is driven to move by a driving rod 5, the exhaust chamber 6 is rotatably embedded with an oscillation mechanism 11 for oscillating 12, the discharge chamber 9 is elastically connected to a discharge mechanism 8, and the discharge chamber 9 is connected to the waste pipe 2.

[0040] Furthermore, the exhaust cavity 6 and the discharge cavity 9 are partially connected through the overflow groove 7, and the die casting liquid 12 is fed into the exhaust cavity 6 through the feeding port 4, and a certain amount of overflow is left when feeding.

[0041] When in use, the die-casting liquid 12 is fed into the exhaust chamber 6 through the feeding port 4, and the piston push plate 10 is driven to move inside the exhaust chamber 6 by the driving rod 5. When the piston push plate 10 moves to a suitable position, the tiny bubbles contained in the die-casting liquid 12 are shaken and broken by the oscillation mechanism 11, and then float up, overflow into the discharge chamber 9 through the overflow groove 7, and are discharged through the waste pipe 2 and collected for reuse.

[0042] Embodiment 2

[0043] Based on the first embodiment, Figure 1 - Figure 3 As shown, the discharge mechanism 8 includes a push plate 13 and a sealing plate 14. The sealing plate 14 is elastically connected to the inside of the discharge chamber 9. The push plate 13 is fixedly connected to the bottom of the sealing plate 14. The push plate 13 is used to close the overflow groove 7. The sealing plate 14 is used to clean the waste inside the discharge chamber 9 to the inside of the waste pipe 2.

[0044] Furthermore, the cross section of the sealing plate 14 is adapted to the discharge cavity 9 , and the length of the pushing plate 13 is adapted to the overflow groove 7 .

[0045] During use, as the piston push plate 10 is pushed forward, the die-casting liquid 12 inside the exhaust chamber 6 gradually accumulates, and as the oscillation mechanism 11 oscillates the die-casting liquid 12, the gas floats up. When the piston push plate 10 moves to the edge of the overflow groove 7, the discharge mechanism 8 elastically releases and drives the push plate 13 to close the overflow groove 7 while separating the gas-rich waste into the inside of the discharge chamber 9. As the push plate 13 moves, the sealing plate 14 will move synchronously to discharge the waste inside the discharge chamber 9 through the waste pipe 2.

[0046] like Figure 1 - Figure 6As shown, the cross-section of the oscillation mechanism 11 is arc-shaped, and multiple groups of oscillation components 15 are evenly embedded on the surface of the oscillation mechanism 11. A driving groove 27 begins to appear on the surface of the oscillation mechanism 11, and a limiting rod 19 is elastically embedded inside the piston push plate 10. The limiting rod 19 passes through the piston push plate 10 and extends to the inside of the driving groove 27.

[0047] Furthermore, an arc-shaped protrusion 21 is provided at the end of the limiting rod 19, and the driving slide groove 27 is in a corrugated shape.

[0048] When in use, the limit rod 19 extends to the inside of the driving groove 27. As the piston push plate 10 moves, under the action of the limit rod 19 and the driving groove 27, the oscillation mechanism 11 will reciprocate inside the exhaust chamber 6, and a plurality of oscillation components 15 are embedded on the surface of the oscillation mechanism 11, through which the die-casting liquid 12 can be oscillated and defoamed.

[0049] like Figure 1 - Figure 7 As shown, a fixing plate 20 is provided on one side of the piston push plate 10 , the fixing plate 20 is in contact with the surface of the oscillating mechanism 11 , and the oscillating mechanism 11 is provided with a slot 40 adapted to the oscillating component 15 .

[0050] Furthermore, a through hole 39 adapted to the limiting rod 19 is formed through the fixing plate 20 , and a sealing plate groove 17 adapted to the fixing plate 20 is formed on the inner wall of the exhaust cavity 6 .

[0051] During use, in order to prevent the die-casting liquid 12 from entering the interior of the driving chute 27 and affecting the oscillation effect of the oscillation mechanism 11, a fixed plate 20 is provided to cover and protect the driving chute 27. At the same time, in order to prevent the die-casting liquid 12 from remaining in the gap between the oscillation components 15, the fixed plate 20 is provided with a card slot 40. After the oscillation is completed, the card slot 40 inside the fixed plate 20 will be plugged into the oscillation component 15 to fix the oscillation component 15 and fill the gap between 15 to prevent the die-casting liquid 12 from remaining inside the exhaust chamber 6, thereby improving the feeding effect of the device and the convenience of long-term use and maintenance.

[0052] like Figure 1 - Figure 6 and Figure 8 - Fig.10 As shown, a clamping block 22 is elastically embedded in the bottom of the sealing plate 14, and the clamping block 22 is adapted to the overflow groove 7. The side end face of the clamping block 22 is fixedly connected to a limiting slider 23. A limiting slide groove 25 adapted to the limiting slider 23 is provided on the inner wall of the overflow groove 7. The limiting slide groove 25 is arranged in an "L" shape, and a bevel groove 26 is provided at the end of the driving slide groove 27.

[0053] Furthermore, a sloped portion 24 is provided on one side of the clamping block 22 and the sealing plate 14 to facilitate the upward movement of the clamping block 22 and the separation of the waste liquid by the sealing plate 14 .

[0054] During use, when the piston push plate 10 moves to the edge of the overflow groove 7, the oscillation work is completed, and the limit rod 19 moves to the end of the driving slide groove 27. As the piston push plate 10 continues to move, the limit rod 19 moves to the inclined groove 26, and under the action of the inclined groove 26, the limit rod 19 is driven to move upward and extend to the inside of the overflow groove 7, so that as the piston push plate 10 moves, the limit rod 19 will fit with the clamping block 22 and drive the clamping block 22 to move upward so that the limit slider 23 moves to the horizontal section of the limit slide groove 25. At this time, the clamping block 22 releases the clamping of the discharge mechanism 8, and then the push plate 13 and the sealing plate 14 move quickly inside the discharge chamber 9 under the action of elastic force to close the overflow groove 7. At the same time, the waste liquid in the discharge chamber 9 is discharged through the waste pipe 2. After the waste liquid is discharged, the piston push plate 10 continues to move to inject the defoamed die-casting liquid 12 into the mold through the injection port 1 for casting, thereby improving the quality of the casting. At the same time, when the piston push plate 10 is reset from the bottom of the exhaust chamber 6, the cross-section of the clamping block 22 can be set to a triangle. During the return movement of the piston push plate 10, the limit rod 19 will drive the clamping block 22 to drive the discharge mechanism 8 to reset. When the limit slider 23 moves to the end of the horizontal section of the limit slide groove 25, the limit slider 23 can fall into the turning point of the limit slide groove 25 under the action of the elastic force, so that the clamping block 22 re-clamps and locks the discharge mechanism 8, waiting for the next discharge.

[0055] like Figure 1 - Figure 6 and Fig.11 As shown, a deflection groove matched with the oscillation mechanism 11 is opened on the inner wall of the exhaust chamber 6, and a limiting arc rod 16 is penetrated inside the deflection groove. The limiting arc rod 16 is fixedly connected to the inside of the deflection groove, one end of the oscillation component 15 is rotatably connected to the limiting arc rod 16, and the other end of the oscillation component 15 is rotatably connected to the oscillation mechanism 11.

[0056] Furthermore, an oscillation groove 29 adapted to the deflection of the oscillation component 15 is provided inside the oscillation mechanism 11. The oscillation component 15 is rotationally connected to the limiting arc rod 16 and the oscillation mechanism 11 respectively through a rotating shaft 30, and a flexible layer 28 is provided at the connection between the oscillation component 15 and the oscillation mechanism 11 for buffering and sealing.

[0057] When in use, during the oscillation and defoaming process, the oscillation mechanism 11 deflects and drives the oscillation component 15 to oscillate, thereby defoaming the die-casting liquid 12. However, the angle of the oscillation component 15 is single during the oscillation process, and a limiting arc rod 16 is provided. The oscillation component 15 is respectively connected to the limiting arc rod 16 and the oscillation mechanism 11 for rotation, so that when the oscillation mechanism 11 deflects, the oscillation component 15 will also deflect at an angle as the oscillation mechanism 11 rotates, thereby improving the oscillation effect on the die-casting liquid 12.

[0058] like Figure 1 - Figure 6and Figure 11-12 As shown, an extension plate 18 covering the closed deflection groove extends from the end of the oscillation mechanism 11, and an airtight cavity 3 discharge mechanism 8 is opened inside the oscillation component 15. The two ends of the airtight cavity 3 discharge mechanism 8 are connected with the deflection grooves at both ends of the oscillation mechanism 11 through exhaust holes 33 and air inlet holes 35. An airtight slider 37 is slidably connected inside the airtight cavity 3 discharge mechanism 8, and an oscillation plate 32 is slidably fitted on the upper end surface of the airtight slider 37, and a plurality of groups of protrusions 36 are provided at the fitting position between the oscillation plate 32 and the airtight slider 37.

[0059] When in use, the deflection groove can be closed by the extension plate 18 to isolate the entry of the external die-casting liquid 12, and at the same time, a sealed cavity is formed. During the deflection of the oscillation mechanism 11, the pressure in the cavities on both sides of the deflection groove will change regularly. In order to improve the oscillation effect of the oscillation component 15, an airtight cavity 3 discharge mechanism 8 is provided inside the oscillation component 15. The airtight cavity 3 discharge mechanism 8 is connected with the cavities at both ends of the deflection groove. Under the action of pressure, the airtight slider 37 inside the airtight cavity 3 discharge mechanism 8 moves back and forth, so that under the action of the protrusion 36, the oscillation plate 32 vibrates inside the oscillation component 15 and impacts the shell of the oscillation component 15, so that micro-oscillation is formed on the surface of the oscillation component 15 to further improve the oscillation effect on the die-casting liquid 12.

[0060] Embodiment 3

[0061] On the basis of embodiment 1 or 2, Figure 1 - Figure 6 and Figure 11-12 As shown, the oscillation component 15 is internally slidably connected with an oscillation plate 32, and the oscillation component 15 is provided with a sliding cavity adapted to the oscillation plate 32, the sliding cavity is connected with the deflection groove through an exhaust hole 33 and an air inlet hole 35, and a buffer layer 31 is provided at the top and bottom of the sliding cavity.

[0062] Furthermore, the limiting arc rod 16 can also be used as a gas connecting piece. By setting a connecting hole 3 and a feeding port 4 through the inside of the limiting arc rod 16, the air inlet 35 and the like can be connected to the deflection groove through the connecting hole 3 and the feeding port 4.

[0063] When in use, as the oscillation mechanism 11 deflects regularly, the pressure in the upper and lower parts of the sliding cavity is different, causing the oscillation plate 32 to reciprocate up and down inside the sliding cavity, thereby impacting and oscillating the oscillation component 15, and a buffer layer 31 is provided on the inner wall of the oscillation component 15 for buffering. Compared with the second embodiment, this structure has lower mechanical wear and can be used for a long time.

[0064] Working principle: the die casting liquid 12 is fed into the exhaust chamber 6 through the feeding port 4, and the piston push plate 10 is driven to move inside the exhaust chamber 6 through the driving rod 5. When the piston push plate 10 moves to a suitable position, the tiny bubbles contained in the die casting liquid 12 are shaken and broken by the oscillation mechanism 11, and then float up, overflow to the inside of the discharge chamber 9 through the overflow groove 7, and are discharged through the waste pipe 2 and collected for reuse. With the advancement of the piston push plate 10, the die casting liquid 12 in the exhaust chamber 6 is gradually accumulated, and with the vibration of the oscillation mechanism 11, the gas in the die casting liquid 12 floats up. When the piston push plate 10 moves to the edge of the overflow groove 7, the discharge mechanism 8 is elastically released to drive the push plate 13 to close the overflow groove 7 and separate the waste rich in gas at the same time. To the inside of the discharge chamber 9 and with the movement of the push plate 13, the sealing plate 14 will move synchronously to discharge the waste in the discharge chamber 9 through the waste pipe 2, and the limit rod 19 extends to the inside of the driving slide groove 27. With the movement of the piston push plate 10, the limit rod 19 and the driving slide groove 27 will decrease, which will cause the oscillation mechanism 11 to reciprocate inside the exhaust chamber 6. In addition, a plurality of oscillation components 15 are embedded on the surface of the oscillation mechanism 11. The oscillation components 15 can be used to oscillate and defoam the die-casting liquid 12. In order to prevent the die-casting liquid 12 from entering the driving slide groove 27 and affecting the oscillation effect of the oscillation mechanism 11, a fixed plate 20 is provided. The fixed plate 20 covers and protects the driving slide groove 27. At the same time, in order to prevent the die-casting liquid 12 from remaining in the gap between the oscillation components 15 The fixing plate 20 is provided with a card slot 40. After the oscillation is completed, the card slot 40 inside the fixing plate 20 will be plugged into the oscillation component 15 to fix the oscillation component 15 and fill the gap between 15 to avoid the die-casting liquid 12 remaining inside the exhaust chamber 6, thereby improving the feeding effect of the device and the convenience of long-term use and maintenance. When the piston push plate 10 moves to the edge of the overflow groove 7, the oscillation work is completed, and the limit rod 19 moves to the end of the driving slide groove 27. As the piston push plate 10 continues to move, the limit rod 19 moves to the inclined groove 26, and under the action of the inclined groove 26, the limit rod 19 is driven to move upward and extend to the inside of the overflow groove 7, so that as the piston push plate 10 moves, the limit rod 19 will fit with the card block 22 and drive the card block 22 to move upward so that the limit The slider 23 moves to the horizontal section of the limiting slide groove 25, at which time the clamping block 22 releases the clamping of the discharge mechanism 8, and then the push plate 13 and the sealing plate 14 move quickly inside the discharge chamber 9 under the action of elastic force, closing the overflow groove 7 while discharging the waste liquid inside the discharge chamber 9 through the waste pipe 2. After the waste liquid is discharged, the piston push plate 10 continues to move to inject the defoamed die-casting liquid 12 into the mold through the injection port 1 for casting, thereby improving the quality of the casting. At the same time, when the piston push plate 10 is reset from the bottom of the exhaust chamber 6, the cross-section of the clamping block 22 can be set to a triangle. During the return movement of the piston push plate 10, the limiting rod 19 will drive the clamping block 22 to drive the discharge mechanism 8 to reset. When the limiting slider 23 moves to the end of the horizontal section of the limiting slide groove 25,Under the action of elastic force, the limit slider 23 can fall into the turning point of the limit slide groove 25, so that the clamping block 22 re-clamps and locks the discharge mechanism 8, waiting for the next discharge. During the oscillation and defoaming process, the deflection of the oscillation mechanism 11 drives the oscillation component 15 to oscillate, thereby defoaming the die-casting liquid 12. However, during the oscillation process, the oscillation component 15 has a single angle, and a limit arc rod 16 is provided. The oscillation component 15 is respectively connected to the limit arc rod 16 and the oscillation mechanism 11 for rotation, so that when the oscillation mechanism 11 deflects, the oscillation component 15 will also deflect at an angle as the oscillation mechanism 11 rotates, thereby improving the oscillation effect on the die-casting liquid 12. The deflection groove is closed under the extension plate 18 It can isolate the entry of external die casting liquid 12, and at the same time form a sealed cavity. During the deflection process of the oscillation mechanism 11, the pressure of the cavities on both sides of the deflection groove will change regularly. In order to improve the oscillation effect of the oscillation component 15, an airtight cavity 3 discharge mechanism 8 is provided inside the oscillation component 15. The airtight cavity 3 discharge mechanism 8 is connected with the cavities at both ends of the deflection groove. When the pressure drops, the airtight slider 37 inside the airtight cavity 3 discharge mechanism 8 moves back and forth, so that under the action of the protrusion 36, the oscillation plate 32 vibrates inside the oscillation component 15 and impacts the shell of the oscillation component 15, so that the surface of the oscillation component 15 forms a micro-oscillation to further improve the oscillation effect on the die casting liquid 12.

Claims

1. An optical module housing die-casting mold exhaust structure, including an exhaust device, characterized in that: One end of the exhaust device is provided with a waste pipe connected to the mold, and a feeding port is provided at the upper end surface of the exhaust device. An exhaust chamber and a discharge chamber are provided inside the exhaust device, and the exhaust chamber and the discharge chamber are connected through an overflow groove. A piston push plate is slidably connected to the inside of the exhaust chamber, and the piston push plate is driven to move by a driving rod. An oscillation mechanism for oscillating is rotatably embedded in the interior of the exhaust chamber, and a discharge mechanism is elastically connected to the inside of the discharge chamber, and the discharge chamber is connected to a waste pipe; the discharge mechanism includes a push plate and a sealing plate, and the sealing plate is elastically connected to the inside of the discharge chamber, and the push plate is fixedly connected to the bottom of the sealing plate. The push plate is used to close the overflow groove, and the sealing plate is used to clean the waste inside the discharge chamber to the waste The inside of the material tube; the cross-section of the oscillation mechanism is arc-shaped, and a plurality of oscillation components are evenly embedded on the surface of the oscillation mechanism; a driving slide groove begins to be formed on the surface of the oscillation mechanism; a limit rod is elastically embedded in the interior of the piston push plate, and the limit rod penetrates the piston push plate and extends to the inside of the driving slide groove; a fixed plate is provided on one side of the piston push plate, and the fixed plate is fitted with the surface of the oscillation mechanism, and the oscillation mechanism is provided with a card groove matched with the oscillation component; a clamping block is elastically embedded in the bottom of the sealing plate, and the clamping block is matched with the overflow groove, and the side end face of the clamping block is fixedly connected to the limiting slider, and a limiting slide groove matched with the limiting slider is provided on the inner wall of the overflow groove, and the limiting slide groove is arranged in an "L" shape, and a bevel groove is provided at the end of the driving slide groove.

2. The optical module housing die-casting mold exhaust structure according to claim 1, characterized in that: A deflection groove adapted to the oscillation mechanism is provided on the inner wall of the exhaust chamber, a limiting arc rod is provided inside the deflection groove, the limiting arc rod is fixedly connected to the inside of the deflection groove, one end of the oscillation component is rotatably connected to the limiting arc rod, and the other end of the oscillation component is rotatably connected to the oscillation mechanism.

3. The optical module housing die-casting mold exhaust structure according to claim 2, characterized in that: An extension plate covering the closed deflection groove extends from the end of the oscillation mechanism, and an airtight cavity discharge mechanism is provided inside the oscillation component. Both ends of the airtight cavity discharge mechanism are connected with the deflection grooves at both ends of the oscillation mechanism through exhaust holes and air inlet holes. An airtight slider is slidably connected inside the airtight cavity discharge mechanism, and an oscillation plate is slidably fitted on the upper end surface of the airtight slider, and a plurality of groups of protrusions are provided at the fitting position between the oscillation plate and the airtight slider.

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