Die casting machine with punch lubricating oil injection device

Abstract

The utility model relates to a die-casting machine with a punch lubricating and oil spraying device, which relates to the technical field of die-casting machine lubricating systems and comprises a support, a static die, a movable die, an injection head, a driving assembly, a die opening assembly and an oil spraying assembly. The static die is fixedly arranged on the support; the movable mold is arranged on the support; a material injection groove is formed in the static mold, and the material injection groove is communicated with the mold cavity; a material injection pipe is arranged on the static mold in a penetrating manner, and the material injection pipe is communicated with the material injection groove; a material injection opening is formed in the top of the material injection pipe in a communicating manner; the injection head is arranged in the injection pipe in a sliding manner; the driving assembly is arranged on the support and used for driving the injection head to slide. The mold opening assembly is arranged on the support and is used for driving the static mold to perform sliding mold opening relative to the movable mold; the oil spraying assembly is arranged on the support and used for spraying lubricating oil to the injection head. The convenience of die-casting production can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of die-casting machine lubrication systems, and in particular to a die-casting machine with a punch lubrication oil spray device. Background Art

[0002] A die-casting machine is a machine used for pressure casting. When in use, the die-casting machine hydraulically injects molten metal into a mold under pressure for cooling and forming. After the mold is opened, a solid metal casting can be obtained.

[0003] During the die-casting production process, the punch must dynamically contact the molten metal and rub against the pressure chamber for each shot, causing the punch to bear a large friction force. After a certain period of use, it is prone to wear and tear, requiring operators to frequently replace the punch, causing great inconvenience to die-casting production. Utility Model Content

[0004] In order to improve the convenience of die-casting production, the present application provides a die-casting machine with a punch lubrication oil spray device.

[0005] The present application provides a die-casting machine with a punch lubricating oil spray device, which adopts the following technical solution:

[0006] A die-casting machine with a punch lubrication and oil spraying device comprises a support, a static die, a dynamic die, a shot head, a drive assembly, a die opening assembly and an oil spraying assembly; the static die is fixedly arranged on the support; the dynamic die is arranged on the support, and the static die is adapted to the dynamic die to jointly form a cavity for casting; an injection groove is provided on the static die, and the injection groove is connected to the cavity; an injection pipe is passed through the static die, and the injection pipe is connected to the injection groove; an injection port is provided on the top of the injection pipe; the shot head is slidably arranged in the injection pipe; the drive assembly is arranged on the support, and is used to drive the shot head to slide; the die opening assembly is arranged on the support, and is used to drive the static die to slide and open the die relative to the dynamic die; the oil spraying assembly is arranged on the support, and is used to spray lubricating oil onto the shot head.

[0007] By adopting the above technical solution, when performing die-casting production, the operator first injects a certain amount of metal solution into the injection tube through the injection port, and then uses the driving component to drive the injection head to slide in the direction close to the static mold, so that the molten metal in the injection tube is pressurized and input into the mold cavity through the injection groove, and then keeps the injection head stationary, so that a certain pressure is maintained in the mold cavity and waits for a certain time. The molten metal in the mold cavity solidifies to form a casting, and then uses the mold opening component to drive the static mold to slide in the direction away from the dynamic mold to open the mold, and then the casting is taken out of the mold cavity and demolded to complete the die-casting production.

[0008] During use, the oil spray assembly is used to spray lubricating oil onto the shot head. When the shot head slides in the oil filling tube, the lubricating oil on the surface is smeared on the surface of the shot head and the inner wall of the filling tube, thereby starting the lubrication effect, avoiding wear of the shot head, thereby reducing the frequency of replacement of the shot head and improving the convenience of die-casting production.

[0009] Optionally, an oil spray groove is provided on the top of the injection tube; the oil spray assembly includes an oil tank, an oil spray pipe and an oil outlet pipe; the oil tank is fixedly arranged on the support, and lubricating oil is preset in the oil tank; the oil spray pipe is connected to the interior of the oil tank, and an oil pump is installed on the oil spray pipe; one end of the oil outlet pipe is connected to the oil spray pipe, and the other end is located at the top of the oil spray groove.

[0010] By adopting the above technical solution, when in use, the operator can start the oil pump and use the oil pump to transport the lubricating oil in the oil tank through the oil injection pipe and the oil outlet pipe to the top of the oil injection tank for spraying. The lubricating oil is sprayed on the surface of the injection head, achieving the effect of spraying the lubricating oil on the lubricating oil surface.

[0011] Optionally, the oil injection assembly further includes an oil-gas mixer, an air box and an air injection pipe; the oil-gas mixer is fixedly mounted on the static mold, and is used to mix lubricating oil and gas to form atomized oil to be sprayed out from the oil outlet pipe; the end of the oil outlet pipe away from the oil injection groove is connected to the interior of the oil-gas mixer, and the end of the oil injection pipe away from the oil tank is connected to the interior of the oil-gas mixer; the air box is fixedly mounted on the support, and high-pressure gas is preset in the air box; the two ends of the air injection pipe are respectively connected to the interior of the air box and the interior of the oil-gas mixer; an air pump is installed on the air injection pipe.

[0012] By adopting the above technical solution, the lubricating oil is transported to the oil-gas mixer through the oil injection pipe by an oil pump, and the high-pressure gas is transported to the oil-gas mixer through the air injection pipe by an air pump. Then, the lubricating oil and gas are mixed by the oil-gas mixer to form an atomized lubricating oil liquid, which is sprayed from the oil outlet pipe to the injection head. During the sliding process of the injection head, the atomized lubricating oil can be more evenly applied to the surface of the injection head, thereby improving the lubrication effect.

[0013] Optionally, the drive assembly includes a motor, a connecting rod and a crank; the motor is fixedly mounted on the support; one end of the connecting rod is hinged to the injection head; one end of the crank is hinged to the connecting rod, and the other end is fixedly connected to the output shaft of the motor.

[0014] By adopting the above technical solution, when in use, the motor starts and drives the crank to rotate. The crank, connecting rod, injection head and injection tube together form a crank sliding mechanism. When the crank rotates, it drives the injection head to slide, thereby realizing the driving of the injection head.

[0015] Optionally, the mold opening assembly includes a first hydraulic cylinder and a connecting block; the first hydraulic cylinder is fixedly arranged on the support; the connecting block is fixedly arranged on the movable end of the first hydraulic cylinder; and the connecting block is detachably connected to the movable mold.

[0016] With this technical solution, once the molten metal in the mold cavity solidifies to form a casting, the first hydraulic cylinder contracts, driving the connecting block and the movable mold to slide away from the static mold, allowing the mold to open. If the movable mold shows signs of wear after a period of use, the operator can remove it with bolts for replacement.

[0017] Optionally, an ejection assembly is provided on the static mold, and the ejection assembly includes a second hydraulic cylinder and an ejection block; the second hydraulic cylinder is fixedly provided on the static mold; the ejection block is slidably provided on the static mold and fixedly connected to the movable end of the second hydraulic cylinder.

[0018] By adopting the above technical solution, after the casting is formed and the mold is opened, the second hydraulic cylinder is extended to drive the ejector block to slide toward the movable mold, thereby ejecting the formed casting from the mold cavity, making it easier for the operator to demold the casting and improving the convenience of die-casting production.

[0019] Optionally, a funnel is provided on the injection tube, and the funnel is located at the opening of the injection port.

[0020] By adopting the above technical solution, when the operator injects the metal solution into the injection pipe, the metal solution is first injected into the funnel, and then flows into the injection pipe along the funnel. The funnel makes it easier for the operator to inject the material, thereby improving the convenience of die-casting production.

[0021] Optionally, the bottom of the funnel is provided with an external thread; the injection tube is provided with an internal thread, the internal thread is located at the opening of the injection port, and the funnel and the injection tube are detachably connected via threads.

[0022] By adopting the above technical solution, after a certain period of use, solidified molten metal will adhere to the funnel. At this time, the operator can disassemble and replace the funnel through the thread to avoid clogging of the funnel, thereby improving the convenience of die-casting production.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up an oil spray assembly, when in use, the oil spray assembly is used to spray lubricating oil onto the shot head. When the shot head slides in the oil filling pipe, the lubricating oil on the surface is smeared on the surface of the shot head and the inner wall of the filling pipe, thereby starting the lubrication effect, preventing the shot head from being worn, thereby reducing the frequency of shot head replacement and improving the convenience of die-casting production;

[0025] 2. By setting up the ejector assembly, after the casting is formed and the mold is opened, the second hydraulic cylinder is extended to drive the ejector block to slide toward the movable mold, thereby ejecting the formed casting from the mold cavity, making it easier for the operator to demold the casting and improving the convenience of die-casting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of an embodiment of the present application;

[0027] Figure 2 is a cross-sectional view of an embodiment of the present application;

[0028] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0029] Figure 4 yes Figure 1 A partial enlarged view of point A in the middle.

[0030] Description of reference numerals:

[0031] 1. Support;

[0032] 2. Static mold; 21. Cavity; 22. Injection groove; 23. Injection pipe; 231. Injection port; 232. Oil spray tank; 233. Funnel;

[0033] 3. Moving mold; 4. Shot head;

[0034] 5. Drive assembly; 51. Motor; 52. Connecting rod; 53. Crank;

[0035] 6. Mold opening assembly; 61. First hydraulic cylinder; 62. Connecting block;

[0036] 7. Fuel injection assembly; 71. Fuel tank; 72. Fuel injection pipe; 721. Fuel pump; 73. Fuel outlet pipe; 74. Oil-gas mixer; 75. Air tank; 76. Injection pipe; 761. Air pump;

[0037] 8. Ejector assembly; 81. Second hydraulic cylinder; 82. Ejector block. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-4 This application is described in further detail.

[0039] The embodiment of the present application discloses a die casting machine with a punch lubricating oil spray device. Figure 1 and Figure 2The die casting machine with a punch lubrication oil injection device includes a support 1. A static die 2 and a dynamic die 3 are fixedly arranged on the support 1. The static die 2 and the dynamic die 3 are adapted to form a cavity 21 for forming a casting.

[0040] Reference Figure 2 and Figure 3 A material injection groove 22 is provided on the side wall of the static mold 2 close to the dynamic mold 3. The material injection groove 22 is located at the bottom of the cavity 21 and is connected to the cavity 21. A material injection tube 23 is provided on the static mold 2. One end of the material injection tube 23 is connected to the material injection groove 22, and the other end passes through the side of the static mold 2 away from the dynamic mold 3. A material injection port 231 is provided on the top of the material injection tube 23. The material injection port 231 is connected to the inside of the material injection tube 23. An internal thread is provided on the material injection tube 23, and the internal thread is located at the opening of the material injection port 231. A funnel 233 is provided on the material injection tube 23, which is vertically arranged at the top of the material injection tube 23 and located at the opening of the material injection port 231. An external thread is provided at the bottom of the funnel 233. The external thread on the funnel 233 is adapted to the internal thread at the material injection port 231. The funnel 233 is detachably connected to the material injection tube 23 through a thread.

[0041] A shot head 4 is coaxially arranged on the injection tube 23 , and one end of the shot head 4 is slidably arranged in the injection tube 23 .

[0042] Reference Figure 1 and Figure 2 A drive assembly 5 is provided on the support 1, and the drive assembly 5 includes a motor 51, a connecting rod 52 and a crank 53. The motor 51 is fixedly provided on the support 1, and the output shaft of the motor 51 is arranged horizontally. One end of the connecting rod 52 is hinged to the end of the injection head 4 away from the injection tube 23, and the hinge axis is parallel to the axis of the output shaft of the motor 51. One end of the crank 53 is hinged to the connecting rod 52, and the hinge axis is parallel to the axis of the output shaft of the motor 51, and the other end of the crank 53 is fixedly connected to the output shaft of the motor 51. The crank 53, the connecting rod 52, the injection head 4 and the injection tube 23 together constitute a crank slider mechanism.

[0043] Reference Figure 1 and Figure 2 A mold opening assembly 6 is provided on the support 1, and the mold opening assembly 6 includes a first hydraulic cylinder 61 and a connecting block 62. The first hydraulic cylinder 61 is arranged horizontally, and the movable end of the first hydraulic cylinder 61 is fixedly connected to the support 1. The connecting block 62 is coaxially fixedly arranged on the movable end of the first hydraulic cylinder 61. The connecting block 62 has four threaded holes along its circumference, and the movable mold 3 has four corresponding threaded holes along its circumference. The connecting block 62 is coaxially arranged with the movable mold 3, and the connecting block 62 and the movable mold 3 are detachably connected by bolts.

[0044] The static mold 2 is provided with an ejector assembly 8, which includes a second hydraulic cylinder 81 and an ejector block 82. The second hydraulic cylinder 81 is arranged horizontally, with the fixed end of the second hydraulic cylinder 81 fixedly connected to the static mold 2, and the movable end of the second hydraulic cylinder 81 is passed through the static mold 2. The ejector block 82 is slidably provided on the static mold 2 and is fixedly connected to the movable end of the second hydraulic cylinder.

[0045] Reference Figure 1 and Figure 4 An oil spraying groove 232 is opened at the top of the injection pipe 23 , and the oil spraying groove 232 is located on the side of the injection pipe 23 away from the funnel 233 .

[0046] Reference Figure 1 and Figure 4 The support 1 is provided with an oil spray assembly 7, which comprises an oil tank 71, an oil-air mixer 74, an oil spray pipe 72, an air box 75, an air jet pipe 76, and an oil outlet pipe 73. The oil tank 71 is fixed to the support 1 and contains lubricating oil. The oil-air mixer 74 is fixed to the static mold 2 and is used to mix lubricating oil and gas to form an atomized lubricating oil liquid. The ends of the oil spray pipe 72 communicate with the interior of the oil tank 71 and the interior of the oil-air mixer 74, respectively. An oil pump 721 is fixedly mounted on the oil spray pipe 72. The air box 75 is fixed to the support 1 and contains high-pressure gas. The ends of the air jet pipe 76 communicate with the interior of the air box 75 and the interior of the oil-air mixer 74, respectively. An air pump 761 is fixedly mounted on the air jet pipe 76. One end of the oil outlet pipe 73 extends to the top of the oil spray tank 232 and the other end communicates with the interior of the oil-air mixer 74.

[0047] The implementation principle of a die-casting machine with a punch lubrication oil spray device in the embodiment of the present application is as follows:

[0048] During die-casting production, the operator pours a certain amount of molten metal into the funnel 233, and the molten metal in the funnel 233 flows into the injection tube 23 through the injection port 231. Then the operator starts the motor 51, and the motor 51 drives the crank 53 to rotate, thereby driving the injection head 4 to slide horizontally toward the static mold 2 through the connecting rod 52, so that the molten metal in the injection tube 23 is pressurized and input into the cavity 21 through the injection groove 22. At this time, the motor 51 stops working and the injection head 4 remains stationary, so that a certain pressure is maintained in the cavity 21. After waiting for a certain period of time, the molten metal in the cavity 21 solidifies to form a casting, and the molten metal in the injection groove 22 forms a handle, and the die-casting production is completed.

[0049] After the die-casting production is completed, the operator drives the first hydraulic cylinder 61 to contract, thereby driving the connecting block 62 and the movable mold 3 to slide away from the static mold 2 to open the mold. Then the operator starts the second hydraulic cylinder 81, and the second hydraulic cylinder 81 extends, thereby driving the ejector block 82 to slide in the direction close to the movable mold 3, thereby ejecting the formed casting from the mold cavity 21. Then the motor 51 continues to rotate, thereby driving the crank 53, the connecting rod 52 and the injection head 4 to reset, and the die-casting production can continue.

[0050] During the die-casting production, the operator can start the oil pump 721 and the air pump 761. Under the action of the oil pump 721, the lubricating oil in the oil tank 71 is transported to the oil-gas mixer 74 through the oil injection pipe 72. Under the action of the air pump 761, the high-pressure gas in the air tank 75 is transported to the oil-gas mixer 74 through the injection pipe 76. The oil-gas mixer 74 mixes the lubricating oil and gas to form an atomized lubricating oil liquid, which is sprayed from the oil outlet pipe 73 to the injection head 4. When the injection head 4 slides back and forth driven by the motor 51, the lubricating oil is smeared on the surface of the injection head 4 and the inner wall of the injection tube 23, thereby playing a lubricating role, preventing the injection head 4 from being worn, and thus reducing the replacement frequency of the injection head 4.

[0051] After a certain period of use, if the movable mold 3 shows signs of wear, the operator can disassemble the movable mold 3 by means of bolts and replace it.

[0052] After a certain period of use, solidified molten metal will adhere to the funnel 233, which may easily cause the funnel 233 to be blocked. At this time, the operator can remove and replace the funnel 233 through the thread.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A die-casting machine with a punch lubrication oil spray device, characterized in that: The invention comprises a support (1), a static mold (2), a dynamic mold (3), a shot head (4), a driving assembly (5), a mold opening assembly (6) and an oil injection assembly (7); the static mold (2) is fixedly arranged on the support (1); the dynamic mold (3) is arranged on the support (1), the static mold (2) and the dynamic mold (3) are adapted to form a cavity (21) for forming a casting; the static mold (2) is provided with a material injection groove (22), the material injection groove (22) is communicated with the cavity (21); the static mold (2) is provided with a material injection pipe (23), the material injection pipe ( 23) is connected to the injection groove (22); the top of the injection tube (23) is connected to open a material injection port (231); the injection head (4) is slidably arranged in the injection tube (23); the driving component (5) is arranged on the support (1) and is used to drive the injection head (4) to slide; the mold opening component (6) is arranged on the support (1) and is used to drive the static mold (2) to slide relative to the movable mold (3) to open the mold; the oil spraying component (7) is arranged on the support (1) and is used to spray lubricating oil onto the injection head (4).

2. The die-casting machine with a punch lubricating oil spray device according to claim 1, characterized in that: An oil injection groove (232) is provided at the top of the injection pipe (23); the oil injection assembly (7) comprises an oil tank (71), an oil injection pipe (72) and an oil outlet pipe (73); the oil tank (71) is fixedly arranged on the support (1), and lubricating oil is preset in the oil tank (71); the oil injection pipe (72) is communicated with the interior of the oil tank (71), and an oil pump (721) is installed on the oil injection pipe (72); one end of the oil outlet pipe (73) is connected to the oil injection pipe (72), and the other end is located at the top of the oil injection groove (232).

3. The die-casting machine with a punch lubricating oil spray device according to claim 2, characterized in that: The oil injection assembly (7) further comprises an oil-gas mixer (74), an air box (75) and an air injection pipe (76); the oil-gas mixer (74) is fixedly mounted on the static mold (2), and is used to mix lubricating oil and gas to form atomized oil liquid to be ejected from the oil outlet pipe (73); the end of the oil outlet pipe (73) away from the oil injection groove (232) is connected to the interior of the oil-gas mixer (74), and the end of the oil injection pipe (72) away from the oil box (71) is connected to the interior of the oil-gas mixer (74); the air box (75) is fixedly mounted on the support (1), and high-pressure gas is preset in the air box (75); the two ends of the air injection pipe (76) are respectively connected to the interior of the air box (75) and the interior of the oil-gas mixer (74); an air pump (761) is installed on the air injection pipe (76).

4. The die-casting machine with a punch lubricating oil spray device according to claim 1, characterized in that: The driving assembly (5) comprises a motor (51), a connecting rod (52) and a crank (53); the motor (51) is fixedly arranged on the support (1); one end of the connecting rod (52) is hinged to the injection head (4); one end of the crank (53) is hinged to the connecting rod (52), and the other end is fixedly connected to the output shaft of the motor (51).

5. The die-casting machine with a punch lubricating oil spray device according to claim 1, characterized in that: The mold opening assembly (6) comprises a first hydraulic cylinder (61) and a connecting block (62); the first hydraulic cylinder (61) is fixedly arranged on the support (1); the connecting block (62) is fixedly arranged on the movable end of the first hydraulic cylinder (61); the connecting block (62) is detachably connected to the movable mold (3).

6. The die-casting machine with a punch lubricating oil spray device according to claim 1, characterized in that: An ejection assembly (8) is provided on the static mold (2), and the ejection assembly (8) comprises a second hydraulic cylinder (81) and an ejection block (82); the second hydraulic cylinder (81) is fixedly provided on the static mold (2); the ejection block (82) is slidably provided on the static mold (2) and is fixedly connected to the movable end of the second hydraulic cylinder (81).

7. The die-casting machine with a punch lubricating oil spray device according to claim 1, characterized in that: A funnel (233) is provided on the injection pipe (23), and the funnel (233) is located at the opening of the injection port (231).

8. The die-casting machine with a punch lubricating oil spray device according to claim 7, characterized in that: The bottom of the funnel (233) is provided with an external thread; the injection tube (23) is provided with an internal thread, the internal thread being located at the opening of the injection port (231); the funnel (233) and the injection tube (23) are detachably connected via the thread.

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