High-sealing die-casting die

Abstract

The utility model discloses a high-sealing die-casting die. The high-sealing die-casting die comprises a front die frame, a rear die frame, a front die core, a rear die core, an ejection mechanism and a sealing rubber strip. According to the utility model, the plurality of sealing grooves are arranged, and the sealing rubber strips are respectively arranged on the sealing grooves, so that the sealing performance of the mold can be effectively improved, the vacuumizing effect on the mold cavity is improved, and the stability of the vacuum degree of the mold cavity is ensured, and therefore, the consistency of castings formed every time is ensured, air holes and impurities in the castings can be effectively reduced, and the production efficiency is improved. And the quality of formed castings is improved.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold design, and in particular to a high-sealing die casting mold. Background Technology

[0002] Die casting molds are a key component in the die casting process. They are typically equipped with mold cavities that can match the castings to be formed, and the liquid metal can be cooled and shaped under high pressure inside the mold cavity to obtain the castings.

[0003] In the die casting process, to ensure the mold cavity is under high pressure and accelerate the filling of molten metal, it is often necessary to evacuate the mold cavity. However, existing die casting molds often have insufficient sealing performance, resulting in a significant amount of air entering the mold cavity during the die casting process. This leads to unstable vacuum levels within the mold cavity, with large differences in the vacuum environment between each die casting, resulting in inconsistent castings and a higher likelihood of porosity and impurities, ultimately affecting the quality of the finished castings. Utility Model Content

[0004] The purpose of this invention is to provide a high-sealing die-casting mold that can solve one or more of the above-mentioned problems.

[0005] According to one aspect of this utility model, a high-sealing die-casting mold is provided, comprising a front mold base, a rear mold base, a front mold core, a rear mold core, an ejection mechanism, and a sealing strip.

[0006] The front mold frame and the rear mold frame can abut against each other, and the front mold core and the rear mold core can also abut against each other to form a mold cavity.

[0007] The front mold frame has a first sealing groove on its contact surface with the rear mold frame, and the front mold core has a second sealing groove on its contact surface with the rear mold core.

[0008] The front mold frame is provided with a first receiving groove, and the front mold core is embedded in the first receiving groove. The first receiving groove is provided with a third sealing groove. The rear mold frame is provided with a second receiving groove, and the rear mold core is embedded in the second receiving groove. The second receiving groove is provided with a fourth sealing groove.

[0009] The ejection mechanism is connected to the rear mold frame, and the rear mold frame has a fifth sealing groove on the surface where it connects to the ejection mechanism.

[0010] Sealing strips are provided on the first sealing groove, the second sealing groove, the third sealing groove, the fourth sealing groove and the fifth sealing groove respectively.

[0011] The beneficial effects of this utility model are as follows: By setting a first sealing groove, a second sealing groove, a third sealing groove, a fourth sealing groove, and a fifth sealing groove, and setting a sealing strip on each sealing groove, the sealing performance of this utility model can be effectively improved, the vacuuming effect on the mold cavity can be improved, and the vacuum degree of the mold cavity can be ensured to be stable, thereby ensuring the consistency of the castings formed each time, while reducing the porosity and impurities in the castings and improving the quality of the formed castings.

[0012] In some embodiments, the ejection mechanism includes a square iron and a base plate. One end of the square iron is connected to the rear mold frame, and the other end of the square iron is connected to the base plate. The base plate has a sixth sealing groove on the surface where it connects with the square iron, and a sealing strip is provided on the sixth sealing groove. The provision of the sixth sealing groove and the sealing strip on the sixth sealing groove can further improve the sealing performance of this invention.

[0013] In some embodiments, the ejection mechanism includes a top plate, an ejector pin, and a tie rod sleeve. The top plate is connected to the tie rod sleeve. One end of the ejector pin is embedded in the top plate, and the other end passes through the rear mold frame and extends into the rear mold core. The tie rod sleeve has a protrusion that can abut against the bottom plate. The protrusion has a seventh sealing groove on the surface that abuts against the bottom plate, and a sealing strip is provided on the seventh sealing groove. The provision of the seventh sealing groove and the sealing strip on the seventh sealing groove can further improve the sealing performance of this invention.

[0014] In some embodiments, there may be multiple square iron pieces connected sequentially. Each square iron piece has a twelfth sealing groove on its connecting surface with an adjacent square iron piece, and a sealing strip is provided on the twelfth sealing groove. The provision of the twelfth sealing groove and the sealing strip on it further improves the sealing performance of this invention.

[0015] In some embodiments, the present invention further includes a slider and a cylinder. The slider is slidably mounted on the rear mold frame, and the cylinder is connected to the rear mold frame and the slider. The slider can abut against the side of the rear mold core. The rear mold core has an eighth sealing groove on the surface that abuts against the slider, and a sealing strip is provided on the eighth sealing groove. The provision of the eighth sealing groove and the sealing strip on the eighth sealing groove can further improve the sealing performance of the present invention.

[0016] In some embodiments, the present invention further includes an upper venting block, a lower venting block, and a venting nozzle, wherein the upper venting block is connected to the front mold frame, and the lower venting block is connected to the rear mold frame.

[0017] When the front mold frame and the rear mold frame abut together, the upper vent block and the lower vent block abut together and form a venting channel. The venting channel is connected to the mold cavity, and the vent nozzle is connected to the upper vent block and is connected to the venting channel.

[0018] In some embodiments, the upper vent block has a ninth sealing groove on its surface connected to the front mold frame, and the lower vent block has a tenth sealing groove on its surface connected to the rear mold frame. Sealing strips are respectively provided on the ninth and tenth sealing grooves. The provision of the ninth and tenth sealing grooves, and the provision of sealing strips on them, further improves the sealing performance of this invention.

[0019] In some embodiments, the present invention further includes a sprue sleeve and a feed cylinder. The sprue sleeve is mounted on the rear mold frame, and the feed cylinder is embedded in the front mold frame. The feed cylinder can be connected to the sprue sleeve. The sprue sleeve has an eleventh sealing groove on its connecting surface with the feed cylinder, and a sealing strip is provided on the eleventh sealing groove. The provision of the eleventh sealing groove and the sealing strip on the eleventh sealing groove can further improve the sealing performance of the present invention.

[0020] In some embodiments, the feed cylinder is provided with an air extraction port. The air extraction port facilitates the evacuation of the feed cylinder, thereby reducing the air contained in the raw material as it passes through the feed cylinder.

[0021] In some embodiments, the present invention further includes a cooling water pipe disposed within the rear mold frame and passing through the rear mold core. The cooling water pipe has an external connection section that extends out from the rear mold frame. This improves the sealing performance of the rear mold core when cooling water is input. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a high-sealing die-casting mold according to one embodiment of the present invention.

[0023] Figure 2 This is an exploded view of the structure of a high-sealing die-casting mold according to one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the front mold frame of a high-sealing die-casting mold according to one embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the rear mold frame of a high-sealing die-casting mold according to one embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the rear mold frame of a high-sealing die-casting mold according to one embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the front mold core of a high-sealing die-casting mold according to one embodiment of the present invention.

[0028] Figure 7This is a schematic diagram of the rear mold core of a high-sealing die-casting mold according to one embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the square iron of a high-sealing die-casting mold according to one embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the base plate of a high-sealing die-casting mold according to one embodiment of the present invention.

[0031] Figure 10 This is an exploded view of the structure of the base plate and tie rod sleeve of a high-sealing die-casting mold according to one embodiment of the present invention.

[0032] Figure 11 This is a schematic diagram of the structure of a high-sealing die-casting mold after the upper and lower vent blocks are connected, according to one embodiment of the present invention.

[0033] Figure 12 This is an exploded view of the sprue sleeve and feed cylinder of a high-sealing die-casting mold according to one embodiment of the present invention.

[0034] In the diagram: 1. Front mold base, 2. Rear mold base, 3. Front mold core, 4. Rear mold core, 5. Ejection mechanism, 6. Sealing strip, 7. Slider, 8. Cylinder, 9. Upper vent block, 101. Lower vent block, 102. Vent nozzle, 103. Sprue sleeve, 104. Inlet cylinder, 105. Cooling water pipe, 1051. External connection section, 11. First receiving groove, 21. Second receiving groove, 51. Square iron, 52. Base plate, 53. Top plate, 54. Ejector pin, 55. Tie rod sleeve, 551. Protrusion, 10. First sealing groove, 20. Second sealing groove, 30. Third sealing groove, 40. Fourth sealing groove, 50. Fifth sealing groove, 60. Sixth sealing groove, 70. Seventh sealing groove, 80. Eighth sealing groove, 90. Ninth sealing groove, 100. Tenth sealing groove, 110. Eleventh sealing groove, 120. Twelfth sealing groove. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] refer to Figures 1-12 The present invention provides a high-sealing die-casting mold, comprising a front mold frame 1, a rear mold frame 2, a front mold core 3, a rear mold core 4, an ejection mechanism 5, and a sealing strip 6.

[0037] The front mold frame 1 and the rear mold frame 2 are connected by a connecting block, allowing them to move relatively linearly along the connecting block and come into contact with each other. The front mold frame 1 has a first sealing groove 10 on its contact surface with the rear mold frame 2. The first sealing groove 10 has a trapezoidal cross-section, and a sealing strip 6 is fixedly installed on it.

[0038] The front mold frame 1 is provided with a first receiving groove 11, and a third sealing groove 30 is provided in the first receiving groove 11. The cross-section of the third sealing groove 30 is U-shaped, and a sealing strip 6 is fixedly provided on the third sealing groove 30. The front mold core 3 is fixedly embedded in the first receiving groove 11 by screws, and the front mold core 3 can abut against the sealing strip 6 provided on the third sealing groove 30.

[0039] The rear mold frame 2 is provided with a second receiving groove 21, and a fourth sealing groove 40 is provided in the second receiving groove 21. The cross-section of the fourth sealing groove 40 is U-shaped. A sealing strip 6 can be fixedly provided on the fourth sealing groove 40. The rear mold core 4 is fixedly embedded in the second receiving groove 40 by screws. The rear mold core 4 can abut against the sealing strip 6 provided on the fourth sealing groove 40.

[0040] When the front mold frame 1 and the rear mold frame 2 abut against each other, the front mold core 3 and the rear mold core 4 can also abut against each other, and the abutment of the front mold core 3 and the rear mold core 4 can surround the mold cavity.

[0041] The front mold core 3 has a second sealing groove 20 on the surface that abuts against the rear mold core 4. The second sealing groove 20 is trapezoidal in shape, and a sealing strip 6 can be fixedly embedded on the cross-section of the second sealing groove 20.

[0042] The ejection mechanism 5 includes a square iron 51 and a base plate 52. There can be multiple square irons 51. One end of all square irons 51 is fixedly connected to the bottom of the rear mold frame 2 by screws, and the other end of all square irons 51 is fixedly connected to the top of the base plate 52 by screws.

[0043] The rear mold frame 2 has a fifth sealing groove 50 on the connecting surface with the square iron 51 of the ejection mechanism 5. The cross-section of the fifth sealing groove 50 is U-shaped, and a sealing strip 6 is fixedly installed on the fifth sealing groove 50. The base plate 52 has a sixth sealing groove 60 on the connecting surface with the square iron 51. The cross-section of the sixth sealing groove 60 is U-shaped, and a sealing strip 6 is fixedly embedded on the sixth sealing groove 60.

[0044] In addition, multiple square irons 51 are connected in sequence. A twelfth sealing groove 120 is provided on the surface of the square iron 51 that can be connected with the adjacent square iron 51. The twelfth sealing groove 120 can be U-shaped, and a sealing strip 6 is embedded in the twelfth sealing groove 120.

[0045] The ejection mechanism 5 also includes a top plate 53, an ejector pin 54, and a tie rod sleeve 55. The top plate 53 is sleeved on the tie rod sleeve 55 for fixed connection with the tie rod sleeve 55. One end of the ejector pin 54 is fixedly embedded in the top plate 53, and the other end of the ejector pin 54 passes through the rear mold frame 2 and extends into the rear mold core 4.

[0046] The pull rod sleeve 55 has a protrusion 551 on its side, which can be attached to the bottom plate. The protrusion has a seventh sealing groove 70 on the surface that can be attached to the bottom plate. The cross-section of the seventh sealing groove 70 is trapezoidal, and a sealing strip 6 is fixedly embedded in the seventh sealing groove 70.

[0047] This high-sealing die-casting mold also includes sliders 7 and cylinders 8. There can be multiple sliders 7 and cylinders 8. Multiple guide rails are provided on the rear mold frame 2. Multiple sliders 7 are slidably mounted on the guide rails of the rear mold frame 2. The cylinder bodies of all cylinders 8 are fixedly connected to the periphery of the rear mold frame 2 through connecting rods. The piston rods of multiple cylinders 8 are connected to multiple sliders 7 one by one through screws. The cylinders 8 can drive the sliders 7 connected to them to move.

[0048] After the front mold core 3 and the rear mold core 4 abut against each other, the slider 7 can abut against the side of the rear mold core 4, and the end of the slider can extend into the mold cavity. The rear mold core 4 has an eighth sealing groove 80 on the surface that abuts against the slider 7. The cross-section of the eighth sealing groove 80 is trapezoidal, and a sealing strip 6 is fixedly embedded on the eighth sealing groove 80.

[0049] This high-sealing die-casting mold also includes an upper venting block 9, a lower venting block 101, and a venting nozzle 102. The upper venting block 9 is embedded in the front mold frame 1 and fixedly connected to the front mold frame 1 by screws. The lower venting block 101 is embedded in the rear mold frame 2 and fixedly connected to the rear mold frame 2 by screws. When the front mold frame 1 and the rear mold frame 2 abut against each other, the upper venting block 9 and the lower venting block 101 can also abut against each other at the same time. After abutting, the upper venting block 9 and the lower venting block 101 will form a venting channel, which is connected to the mold cavity. One end of the venting nozzle 102 is embedded in the upper venting block 9 to connect with the upper venting block 9 and is connected to the venting channel.

[0050] The upper vent block 9 has a ninth sealing groove 90 on the surface connected to the front mold frame 1, and the lower vent block 101 has a tenth sealing groove 100 on the surface connected to the rear mold frame 2. The cross-sections of the ninth sealing groove 90 and the tenth sealing groove 100 are both trapezoidal. Sealing strips 6 are fixedly embedded on the ninth sealing groove 90 and the tenth sealing groove 100 respectively.

[0051] This high-sealing die-casting mold also includes a sprue sleeve 103 and a feed cylinder 104. The sprue sleeve 103 is fixedly installed on the rear mold frame 2 by screws, and the feed cylinder 104 is fixedly embedded on the front mold frame 1. When the front mold frame 1 and the rear mold frame 2 abut against each other, the bottom of the feed cylinder 104 can connect with the top surface of the sprue sleeve 103. The sprue sleeve 103 has an eleventh sealing groove 110 on the surface that can connect with the feed cylinder 104, and a sealing strip 6 is fixedly embedded in the eleventh sealing groove 110.

[0052] The feed cylinder 104 is also provided with an air extraction hole, and the feed channel is provided in the middle of the feed cylinder 104, and the air extraction hole is connected to the feed channel.

[0053] This high-sealing die-casting mold also includes a cooling water pipe 105, which is located inside the rear mold frame 2 and passes through the rear mold core 4. The cooling water pipe 105 is provided with an external connection section 1051, which extends out from the rear mold frame 2 and can be used to connect to an external cooling water supply device.

[0054] In addition, the high-sealing die-casting mold may also include a cooling water pipe disposed in the front mold base 1, the cooling water pipe passing through the front mold core 1, and the end of the cooling water pipe being able to protrude from the front mold base 1, the part being able to be connected to an external cooling water supply device.

[0055] This high-sealing die-casting mold features multiple sealing grooves, each with a sealing strip 6. This effectively improves the mold's sealing performance, thereby enhancing the vacuum effect on the mold cavity, ensuring stable vacuum levels, and guaranteeing consistency in each casting. It also reduces porosity and impurities in the casting, improving the overall quality of the finished product.

[0056] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A high pressure die casting mold characterized by, The front mold frame, the rear mold frame, the front mold core, the rear mold core, the ejection mechanism and the sealing rubber strip, The front mold frame and the rear mold frame can abut, and the front mold core and the rear mold core can abut to enclose a mold cavity, The front mold frame is provided with a first sealing groove on the surface capable of abutting with the rear mold frame, and the front mold core is provided with a second sealing groove on the surface capable of abutting with the rear mold core, The front mold frame is provided with a first accommodating groove, the front mold core is embedded in the first accommodating groove, the first accommodating groove is provided with a third sealing groove, the rear mold frame is provided with a second accommodating groove, the rear mold core is embedded in the second accommodating groove, and the second accommodating groove is provided with a fourth sealing groove, The ejection mechanism is connected with the rear mold frame, and the rear mold frame is provided with a fifth sealing groove on the surface connected with the ejection mechanism, The first sealing groove, the second sealing groove, the third sealing groove, the fourth sealing groove and the fifth sealing groove are respectively provided with sealing rubber strips.

2. A high pressure die casting mold according to claim 1, characterized in that The ejection mechanism comprises a square iron and a bottom plate, one end of the square iron is connected with the rear mold frame, the other end of the square iron is connected with the bottom plate, the bottom plate is provided with a sixth sealing groove on the surface connected with the square iron, and the sixth sealing groove is provided with a sealing rubber strip.

3. A high pressure die casting mold according to claim 2, wherein The ejection mechanism comprises a top plate, a top pin and a pull rod sleeve, the top plate is connected with the pull rod sleeve, one end of the top pin is embedded in the top plate, the other end of the top pin penetrates through the rear mold frame and extends into the rear mold core, the pull rod sleeve is provided with a protrusion capable of abutting with the bottom plate, the protrusion is provided with a seventh sealing groove on the surface capable of abutting with the bottom plate, and the seventh sealing groove is provided with a sealing rubber strip.

4. A high pressure die casting mold according to claim 2, wherein The square iron is provided in plurality, the plurality of square irons are sequentially connected, the square iron is provided with a twelfth sealing groove on the surface capable of being connected with the adjacent square iron, and the twelfth sealing groove is provided with a sealing rubber strip.

5. A high pressure die casting mold according to claim 1, wherein The mold comprises a sliding block and a cylinder, the sliding block is slidably mounted on the rear mold frame, the cylinder is connected with the rear mold frame and connected with the sliding block, the sliding block can abut with the side of the rear mold core, the rear mold core is provided with an eighth sealing groove on the surface capable of abutting with the sliding block, and the eighth sealing groove is provided with a sealing rubber strip.

6. A high pressure die casting mold according to claim 1, wherein The mold comprises an upper exhaust block, a lower exhaust block and an exhaust nozzle, the upper exhaust block is connected with the front mold frame, the lower exhaust block is connected with the rear mold frame, When the front mold frame and the rear mold frame abut, the upper exhaust block and the lower exhaust block abut and enclose an exhaust channel, and the exhaust channel is connected with the mold cavity, The exhaust nozzle is connected with the upper exhaust block and connected with the exhaust channel.

7. A high pressure die casting mold according to claim 6, characterized in that The upper exhaust block is provided with a ninth sealing groove on the surface connected with the front mold frame, the lower exhaust block is provided with a tenth sealing groove on the surface connected with the rear mold frame, and the ninth sealing groove and the tenth sealing groove are respectively provided with sealing rubber strips.

8. A high pressure die casting mold according to claim 1, wherein The mold comprises a sprue sleeve and a feeding cylinder, the sprue sleeve is mounted on the rear mold frame, the feeding cylinder is embedded in the front mold frame, the feeding cylinder can be connected with the sprue sleeve, the sprue sleeve is provided with an eleventh sealing groove on the surface capable of being connected with the feeding cylinder, and the eleventh sealing groove is provided with a sealing rubber strip.

9. A high pressure die casting mold according to claim 8, characterized in that The feeding cylinder is provided with an air extraction hole.

10. A high pressure die casting mold according to claim 1, wherein The mold comprises a cooling water pipe, the cooling water pipe is arranged in the rear mold frame and penetrates through the rear mold core, the cooling water pipe is provided with an external connecting section, and the external connecting section penetrates out of the rear mold frame.

Images