Split type sprue bush structure of die-casting die

Abstract

The utility model relates to the field of sprue bushes, in particular to a split type sprue bush structure of a die-casting die. The problems that in the injection molding process, due to the fact that the sprue bush is of a straight-through type, the sprue position of a product is cooled slowly, uncooled liquid plastic easily flows out along the sprue bush due to the gravity of the plastic, and injection molding of the next mold is affected are solved. The sprue bush comprises a sprue bush body and further comprises a mounting disc, a discharging pipe, a leakage-proof opening and closing assembly and a position fixing assembly. By means of the leakage-proof opening and closing assembly, the discharging pipe can be conveniently sealed, molten plastic is prevented from flowing out along the discharging pipe after being extruded, the effect of next-time mold injection molding is avoided, workers can conveniently open and close the discharging pipe, the operation efficiency of the workers is improved, and the labor intensity of the workers is reduced. And then through the position fixing assembly, position fixing treatment can be conducted on the closed device, so that position stabilization is conducted when the discharging pipe is closed, and the stability of closing the discharging pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of sprue sleeves, and in particular to a split sprue sleeve structure for die casting molds. Background Technology

[0002] Die casting is a precision casting method that uses high pressure to force molten metal into a complex-shaped metal mold. During die casting, the port connector that forces the molten metal into the mold cavity is called the sprue bushing; the sprue bushing is also known as a nozzle, gating nozzle, or sprue.

[0003] In existing sprue bushings, when molten plastic material flows through the sprue bushing, the cooling time inside the sprue bushing is relatively long. After the extrusion of the molten plastic material stops, molten plastic material still remains inside the sprue bushing. The sprue bushings used in the prior art are straight-through type. During the injection molding process, the gate position of the product cools slowly, and the uncooled liquid plastic easily flows out along the sprue bushing due to its own gravity, affecting the effect of the next injection molding. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To overcome the problem that, due to the straight-through design of the sprue bushing, the product's gate area cools slowly during injection molding, and the uncooled liquid plastic tends to flow out along the sprue bushing due to its own gravity, affecting the next injection molding.

[0006] (2) Technical solution

[0007] The technical solution of this utility model is as follows: a split gate sleeve structure for die casting mold, including a gate sleeve body, an installation plate, a discharge pipe, a leak-proof opening and closing component, and a position fixing component. The installation plate is connected to the surface of the gate sleeve body, the discharge end of the gate sleeve body is equipped with a discharge pipe, the leak-proof opening and closing component is provided on the surface of the gate sleeve body, and the position fixing component is provided on the surface of the gate sleeve body.

[0008] Preferably, the leak-proof opening and closing component facilitates the sealing of the discharge pipe, preventing molten plastic from flowing out of the discharge pipe after extrusion, thus avoiding interference with the next injection molding. It also allows operators to easily open and close the discharge pipe, improving their operational efficiency. Furthermore, the position fixing component secures the sealed device, ensuring stability during the sealing of the discharge pipe and further enhancing the sealing effect. This also facilitates the position fixing operation and increases the stability of the sealed discharge pipe.

[0009] Furthermore, the leak-proof opening and closing assembly includes an opening and closing plate, an adjusting plate, a moving block, a push rod, a shaped turntable, a connecting plate, a support frame, and a movable plate. The movable plate is rotatably connected to the surface of the sprue bushing body. Multiple support frames are mounted on the surface of the movable plate. A connecting plate is mounted on the surface of the support frames. A shaped turntable is mounted on the surface of the connecting plate. A push rod is slidably connected in an arc-shaped groove on the surface of the shaped turntable. Multiple adjusting plates are mounted on the surface of the discharge pipe. A moving block is slidably connected in a groove inside the adjusting plate. An opening and closing plate is mounted on one side of the moving block. The opening and closing plate is connected to the push rod, thereby enabling the opening and closing of the discharge pipe. After the sprue bushing body is used, the discharge pipe can be sealed to prevent uncooled liquid plastic from easily flowing out along the sprue bushing due to its own weight, which would affect the effect of the next injection molding.

[0010] Furthermore, a positioning plate is installed on the surface of the main body of the sprue bushing. The positioning plate is in contact with the movable plate, thereby enabling the positioning of the movable plate and preventing it from falling off the surface of the main body of the sprue bushing during rotation, which would affect the efficiency of opening and closing the discharge pipe.

[0011] Furthermore, a guide rod is slidably connected inside the through hole on the surface of the moving block. Both ends of the guide rod pass through the moving block and are installed in the groove inside the adjusting plate. This allows the position of the moving block to be guided when it slides, preventing the moving block from causing the opening and closing disc to shift position during opening and closing, which would result in uncooled liquid plastic flowing out along the discharge pipe.

[0012] Furthermore, the irregularly shaped turntable and the opening and closing discs correspond one-to-one, and the multiple opening and closing discs, when combined, are adapted to the discharge port of the discharge pipe, thereby enabling the discharge pipe to be completely sealed, further improving the sealing performance when the discharge pipe is closed.

[0013] Furthermore, the position fixing component includes a support plate, a sliding block, a positioning rod, and a lifting handle. The support plate is symmetrically installed on the bottom of the main body of the sprue sleeve. The sliding block is slidably connected inside the support plate. The positioning rod is installed on the bottom surface of the sliding block. One end of the positioning rod passes through the support plate and is inserted into a slot opened on the surface of the movable plate. A lifting handle is installed on one side surface of the sliding block, which can fix the position of the movable plate after opening and closing, and prevent the rotation of the movable plate after opening and closing from causing a sealing effect on the discharge pipe, thus affecting the leak prevention effect on the uncooled liquid plastic.

[0014] Furthermore, a limiting rod is slidably connected within the through hole on the surface of the sliding block and the positioning rod. Both ends of the limiting rod penetrate the sliding block and are installed inside the support plate, thereby limiting the sliding position of the sliding block and preventing the sliding block from shifting position during movement, which would affect subsequent operation procedures.

[0015] Furthermore, a return spring is fitted onto the surface of the limiting rod. One end of the return spring is connected to the sliding block, and the other end of the return spring is installed inside the support plate, thereby enabling the positioning rod to be reset, making it more convenient for operators to operate and further improving the overall operating efficiency of the device.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By setting a composite structure of leak-proof opening and closing components and position fixing components to replace the original single structure, the discharge pipe can be sealed after the extrusion of molten plastic is completed. This prevents the uncooled molten plastic from flowing out along the sprue sleeve due to its own gravity after the extrusion of molten plastic is completed, thus affecting the next injection molding. This further improves the protection of the sprue sleeve body after use and prevents the residual molten plastic from flowing out and affecting the sprue sleeve body.

[0019] 2. The leak-proof opening and closing component makes it easy to seal the discharge pipe, preventing the molten plastic from flowing out of the discharge pipe after extrusion, thus avoiding the effect on the next injection molding. It also makes it easy for workers to open and close the discharge pipe, improving the efficiency of their operations.

[0020] 3. The position fixing component can fix the position of the closed device, making the position stable when closing the discharge pipe, which further improves the sealing effect of the discharge pipe, and makes it convenient for the staff to perform the position fixing operation, increasing the stability of the discharge pipe sealing. Attached Figure Description

[0021] Figure 1 The diagram shown is a first three-dimensional structural schematic of this utility model;

[0022] Figure 2 The diagram shown is a second three-dimensional structural schematic of this utility model;

[0023] Figure 3 The diagram shown is a three-dimensional structural schematic of the irregularly shaped turntable and movable disc of this utility model;

[0024] Figure 4 The diagram shown is a three-dimensional structural schematic of the opening and closing disc and push rod of this utility model;

[0025] Figure 5 The diagram shown is a three-dimensional structural schematic of the opening and closing disc and the moving block of this utility model.

[0026] Figure 6The diagram shown is a three-dimensional structural schematic of the movable block and guide rod of this utility model;

[0027] Figure 7 The diagram shown is a three-dimensional structural schematic of the position fixing component of this utility model;

[0028] Figure 8 The diagram shown is a three-dimensional structural schematic of the sliding block and limiting rod of this utility model.

[0029] Explanation of reference numerals in the attached drawings: 1-Gating sleeve body, 2-Mounting plate, 3-Discharge pipe, 4-Leak-proof opening and closing assembly, 5-Position fixing assembly, 401-Opening and closing plate, 402-Adjusting plate, 403-Moving block, 404-Push rod, 405-Irregularly shaped turntable, 406-Connecting plate, 407-Support frame, 408-Moving plate, 409-Positioning plate, 410-Guide rod, 501-Support plate, 502-Sliding block, 503-Positioning rod, 504-Lifting handle, 505-Limiting rod, 506-Reset spring. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Example 1:

[0032] Please see Figure 1-8This utility model provides an embodiment: a split-type sprue bushing structure for a die-casting mold, including a sprue bushing body 1, an mounting plate 2, a discharge pipe 3, a leak-proof opening and closing component 4, and a position fixing component 5. The mounting plate 2 is connected to the surface of the sprue bushing body 1, the discharge pipe 3 is installed at the discharge end of the sprue bushing body 1, the leak-proof opening and closing component 4 is provided on the surface of the sprue bushing body 1, and the position fixing component 5 is provided on the surface of the sprue bushing body 1. The leak-proof opening and closing component 4 includes an opening and closing plate 40. 1. Adjusting plate 402, moving block 403, push rod 404, irregular turntable 405, connecting plate 406, support frame 407, movable plate 408. The movable plate 407 is rotatably connected to the surface of the main body 1 of the sprue bushing. Multiple support frames 407 are installed on the surface of the movable plate 408. The connecting plate 406 is installed on the surface of the support frame 407. The irregular turntable 405 is installed on the surface of the connecting plate 406. The push rod 404 is slidably connected in the arc-shaped groove opened on the surface of the irregular turntable 405. Multiple adjusting plates 402 are installed on the surface of the discharge pipe 3. A moving block 403 is slidably connected in a groove inside the adjusting plate 402. An opening and closing plate 401 is installed on one side of the moving block 403. The opening and closing plate 401 is connected to the push rod 404. A positioning plate 409 is installed on the surface of the sprue sleeve body 1. The positioning plate 409 is in contact with the movable plate 407. A guide rod 410 is slidably connected in a through hole on the surface of the moving block 403. Both ends of the guide rod 410 pass through the moving block 403 and are installed in the groove inside the adjusting plate 402. The irregular turntable 405 and the opening and closing plate 401 correspond one-to-one. After multiple opening and closing plates 410 are combined, they are adapted to the discharge port of the discharge pipe 3, so as to facilitate the sealing treatment of the discharge pipe 3. This prevents the molten plastic from flowing out of the discharge pipe 3 after extrusion, thus avoiding the effect on the next injection molding. It also makes it convenient for the staff to open and close the discharge pipe 3, improving the operating efficiency of the staff.

[0033] Example 2:

[0034] Please see Figure 1-8In this embodiment, the position fixing component 5 includes a support plate 501, a sliding block 502, a positioning rod 503, and a lifting handle 504. The support plate 501 is symmetrically installed on the bottom of the gate sleeve body 1. The sliding block 502 is slidably connected inside the support plate 501. The positioning rod 503 is installed on the bottom surface of the sliding block 502. One end of the positioning rod 503 passes through the support plate 501 and is inserted into a slot opened on the surface of the movable plate 407. The lifting handle 504 is installed on one side surface of the sliding block 502. A limit rod is slidably connected in the through holes opened on the surfaces of the sliding block 502 and the positioning rod 503. 505, both ends of the limiting rod 505 pass through the sliding block 502 and are installed inside the support plate 501. A return spring 506 is sleeved on the surface of the limiting rod 505. One end of the return spring 506 is connected to the sliding block 502, and the other end of the return spring 506 is installed inside the support plate 501. This allows for the position fixation of the closed movable disc 408, ensuring positional stability when closing the discharge pipe 3. This further improves the sealing effect of the discharge pipe 3 and facilitates position fixing operations for workers, increasing the stability of the closing of the discharge pipe 3.

[0035] Workflow: When the discharge pipe 3 is opened, first pull the lifting handle 504. The lifting handle 504 then causes the sliding block 502 to slide inside the support plate 501. During this sliding process, the sliding block 502 causes the positioning rod 503 to be pulled out from the slot on the surface of the movable plate 407. The sliding block 502 slides on the surface of the limiting rod 505, which limits the movement of the sliding block 502, preventing positional deviation. When the sliding block 502 slides on the surface of the limiting rod 505, it compresses the reset spring. Spring 506, at this time, the return spring 506 is deformed by the squeezing force. When the operator releases the lifting handle 504, the return spring 506 is no longer squeezed, thereby driving the sliding block 502 to perform the reset process, which further improves the use effect of the device. When the positioning rod 503 is pulled out from the slot opened on the surface of the movable plate 407, the movable plate 408 is rotated to open the discharge pipe 3. As it rotates continuously, the positioning rod 503 is inserted into another slot opened on the surface of the movable plate 407, thereby fixing the position of the opened and closed plate 401.

[0036] When the positioning rod 503 is pulled out from the slot on the surface of the movable plate 407, the operator rotates the movable plate 408. The movable plate 408 drives the connecting plate 406 to rotate via the support frame 407. During the rotation of the connecting plate 406, the irregularly shaped turntable 405 rotates. Since the push rod 404 is slidably connected in the arc-shaped groove on the surface of the irregularly shaped turntable 405, when the irregularly shaped turntable 405 rotates, it pushes the push rod 404 to move within the arc-shaped groove. During the movement, the push rod 404 drives the moving block 403 to slide within the groove inside the adjusting plate 402. During the sliding, the moving block 403 drives the opening and closing plates 401 to move, thereby separating the multiple opening and closing plates 401 and opening the discharge pipe 3. The discharge pipe 3 can be sealed. During the movement, the moving block 403 slides on the surface of the guide rod 410. The guide rod 410 can guide the moving block 403 to avoid positional deviation during movement and can also position the discharge pipe 3 to prevent it from falling off during discharge. When the movable disc 408 rotates, the positioning disc 409 installed on the surface of the sprue sleeve body 1 can position the movable disc 408 to prevent it from sliding down during movement, which would affect the opening and closing of the discharge pipe 3. This makes it easier for operators to open and close the discharge pipe 3 and further improves the effectiveness of the device.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A split-type sprue bushing structure for a die-casting mold, comprising a sprue bushing body (1); characterized in that: It also includes an installation plate (2), a discharge pipe (3), a leak-proof opening and closing component (4), and a position fixing component (5). The surface of the gate sleeve body (1) is connected to the installation plate (2), the discharge end of the gate sleeve body (1) is equipped with a discharge pipe (3), the surface of the gate sleeve body (1) is provided with a leak-proof opening and closing component (4), and the surface of the gate sleeve body (1) is provided with a position fixing component (5).

2. The split-type gating sleeve structure for die casting mold according to claim 1, characterized in that: The leak-proof opening and closing assembly (4) includes an opening and closing plate (401), an adjusting plate (402), a moving block (403), a push rod (404), a shaped turntable (405), a connecting plate (406), a support frame (407), and a movable plate (408). The movable plate (408) is rotatably connected to the surface of the gate sleeve body (1). Multiple support frames (407) are installed on the surface of the movable plate (408), and the connecting plate (406) is installed on the surface of the support frame (407). A shaped turntable (405) is mounted on the surface of the connecting plate (406). A push rod (404) is slidably connected in an arc groove on the surface of the shaped turntable (405). A plurality of adjusting plates (402) are mounted on the surface of the discharge pipe (3). A moving block (403) is slidably connected in a groove inside the adjusting plate (402). An opening and closing plate (401) is mounted on one side surface of the moving block (403). The opening and closing plate (401) is connected to the push rod (404).

3. The split-type gating sleeve structure for die casting mold according to claim 2, characterized in that: A positioning plate (409) is installed on the surface of the main body (1) of the sprue bushing, and the positioning plate (409) is in contact with the movable plate (408).

4. The split-type gating sleeve structure for die casting mold according to claim 3, characterized in that: A guide rod (410) is slidably connected in the through hole opened on the surface of the movable block (403). Both ends of the guide rod (410) pass through the movable block (403) and are installed in the groove opened inside the adjusting plate (402).

5. The split-type gating sleeve structure for die casting mold according to claim 4, characterized in that: The irregular turntable (405) and the opening and closing disc (401) correspond one-to-one, and the multiple opening and closing discs (401) are combined to match the discharge port of the discharge pipe (3).

6. The split-type gating sleeve structure for a die-casting mold according to claim 5, characterized in that: The position fixing component (5) includes a support plate (501), a sliding block (502), a positioning rod (503), and a lifting handle (504). The support plate (501) is symmetrically installed at the bottom of the main body (1) of the gate sleeve. The sliding block (502) is slidably connected inside the support plate (501). The positioning rod (503) is installed on the bottom surface of the sliding block (502). One end of the positioning rod (503) passes through the support plate (501) and is inserted into a slot opened on the surface of the movable plate (408). The lifting handle (504) is installed on one side surface of the sliding block (502).

7. The split-type gating sleeve structure for die casting mold according to claim 6, characterized in that: A limiting rod (505) is slidably connected within the through holes on the surfaces of the sliding block (502) and the positioning rod (503). Both ends of the limiting rod (505) pass through the sliding block (502) and are installed inside the support plate (501).

8. The split-type gating sleeve structure for a die-casting mold according to claim 7, characterized in that: A reset spring (506) is sleeved on the surface of the limiting rod (505). One end of the reset spring (506) is connected to the sliding block (502), and the other end of the reset spring (506) is installed inside the support plate (501).

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