Damping structure in die-casting die

Abstract

The damping structure in the die-casting die comprises an installation mechanism, a die mechanism, a hydraulic mechanism and an extrusion mechanism, the die mechanism comprises a die body, limiting grooves, a connecting plate and a temperature adjusting pipe, and the left side and the right side of the die body are respectively provided with symmetrical limiting grooves; the die comprises a die body, connecting plates are fixedly connected to the left side and the right side of the die body correspondingly, a temperature adjusting pipe is fixedly connected into the die body, and the temperature adjusting pipe is arranged in the die body, so that the temperature of the die can be adjusted during die casting, and the die is preheated before die casting to reach a certain temperature; the temperature difference between molten metal and the mold is reduced, thermal stress is reduced, deformation and cracking of the mold are reduced, and the buffering extrusion force is indirectly adjusted by adjusting the height of the hydraulic buffering rod at the top end of the mounting frame.

Description

Technical Field

[0001] The utility model relates to die casting, in particular to a shock absorbing structure in a die casting mold, belonging to the technical field of die casting. Background Art

[0002] Die casting mold cushioning refers to a series of technical measures taken during the die casting process to reduce the impact and stress on the mold, improve the service life of the mold and the quality of the casting. These measures are aimed at reducing the direct impact of the metal liquid on the mold during the injection process, as well as the mechanical stress of the mold during the mold closing and opening process.

[0003] Among them, publication number CN111168032B discloses a die-casting mold buffer mechanism, including a rod seat for installing a buffer elastic member, and also includes a spiral coil fixed on the outer side of the rod seat. This buffer mechanism can not only realize the buffer protection of the die-casting mold, but also has stable performance and little effect on the surface temperature of the die-casting mold.

[0004] However, there are still problems. The maintenance cost of the buffer device of the pure mechanical mechanism is high, and it is not convenient to adjust the magnitude of the buffer force according to the buffer strength. Therefore, a shock absorbing structure in the die casting mold is proposed. Utility Model Content

[0005] In view of this, the utility model provides a shock absorbing structure in a die-casting mold to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: a damping structure in a die-casting mold, comprising a mounting mechanism, a mold mechanism, a hydraulic mechanism and an extrusion mechanism, wherein the mold mechanism comprises a mold body, a limit groove, a connecting plate and a temperature regulating tube, symmetrical limit grooves are respectively provided on the left and right sides of the mold body, the left and right sides of the mold body are respectively fixedly connected with connecting plates, and the interior of the mold body is fixedly connected with a temperature regulating tube;

[0007] The hydraulic mechanism includes a hydraulic oil tank, a hydraulic pump, a hydraulic oil pipe, a hydraulic buffer rod and a buffer spring. A hydraulic pump is fixedly installed on the top of the hydraulic oil tank, and the output end of the hydraulic pump is fixedly connected to the hydraulic oil pipe. One end of the hydraulic oil pipe is through-connected to the bottom end of the hydraulic buffer rod, and the bottom side of the output end of the hydraulic buffer rod is fixedly connected to one end of the buffer spring.

[0008] Further preferably, the mounting mechanism includes a mounting frame, a base plate, a limit rail, a connecting head, an electric push rod, a limit plate and a mounting hole, the rear side of the mounting frame is fixedly connected to the base plate, the interior of the mounting frame is fixedly connected to the limit rail, the left and right sides of the mounting frame are respectively fixedly connected to the electric push rods, and the output end of the electric push rod is fixedly connected to the connecting head.

[0009] Further preferably, the top end of the base plate is fixedly connected to the bottom end of the hydraulic oil tank, the outer wall of the limit rail is slidably connected to the inside of the limit groove, the outer wall of the connecting head is slidably connected to the inside of the connecting plate, and the connecting plate and the connecting head are fixedly connected by a live pin.

[0010] Further preferably, a mounting hole is opened at the top of the mounting frame, the interior of the mounting hole is fixedly mounted on the outer wall of the hydraulic buffer rod, the interior of the mounting hole is fixedly connected to the bottom end of the buffer spring, and the top of the bottom plate is fixedly connected to a limiting plate.

[0011] Further preferably, the hydraulic mechanism further comprises a top plate and a hydraulic extrusion rod, the hydraulic extrusion rod is fixedly connected to the inside of the top plate, and the bottom end of the top plate is fixedly connected to the top end of the limit plate.

[0012] Further preferably, the extrusion mechanism includes an extrusion plate, a die-casting head and an air vent, the top end of the extrusion plate is fixedly connected to the output end of the hydraulic extrusion rod, the bottom end of the extrusion plate is fixedly connected to the die-casting head, and the outer wall of the die-casting head is provided with an air vent.

[0013] Further preferably, the extrusion plate is slidably connected to the outer wall of the limiting plate.

[0014] Further preferably, one end of the hydraulic oil pipe is connected to the hydraulic extrusion rod.

[0015] The utility model embodiment adopts the above technical solution, which has the following advantages:

[0016] 1. By adjusting the height of the hydraulic buffer rod at the top of the mounting frame, the force of the buffering extrusion is indirectly adjusted. When the hydraulic extrusion rod pushes the extrusion plate and the die-casting head downward, the extrusion plate squeezes the hydraulic buffer rod downward to contract, thereby compressing or releasing the force of the hydraulic oil buffering descent. By arranging an oil buffer spring at the output end of the hydraulic buffer rod, it is convenient to slowly limit the rebound force under the action of the buffer spring;

[0017] 2. Start the electric push rod to push the mold body upward to facilitate the extraction of the high-temperature mold body. By setting a temperature regulating tube inside the mold body, the temperature of the mold can be adjusted during die-casting. The mold is preheated before die-casting to reach a certain temperature, which helps to reduce the temperature difference between the molten metal and the mold, reduce thermal stress, and thus reduce deformation and cracking of the mold.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the entire utility model;

[0021] Figure 2 This is the structural diagram of the mold body and hydraulic mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation frame of the utility model;

[0023] Figure 4 This is a schematic diagram of the hydraulic buffer rod of the utility model.

[0024] 1. Mounting mechanism; 101. Mounting frame; 102. Bottom plate; 103. Limit rail; 104. Connecting head; 105. Electric push rod; 106. Limit plate; 107. Mounting hole; 2. Mold mechanism; 201. Mold body; 202. Limit groove; 203. Connecting plate; 204. Temperature regulating tube; 3. Hydraulic mechanism; 301. Top plate; 302. Hydraulic extrusion rod; 303. Hydraulic oil tank; 304. Hydraulic pump; 305. Hydraulic oil pipe; 306. Hydraulic buffer rod; 308. Buffer spring; 4. Extrusion mechanism; 401. Extrusion plate; 402. Die-casting head; 403. Air vent. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] Example

[0028] like Figure 1-Figure 4As shown, the embodiment of the utility model provides a damping structure in a die-casting mold, including a mounting mechanism 1, a mold mechanism 2, a hydraulic mechanism 3 and an extrusion mechanism 4, wherein the mold mechanism 2 includes a mold body 201, a limiting groove 202, a connecting plate 203 and a temperature regulating tube 204, symmetrical limiting grooves 202 are respectively provided on the left and right sides of the mold body 201, connecting plates 203 are respectively fixedly connected to the left and right sides of the mold body 201, and a temperature regulating tube 204 is fixedly connected inside the mold body 201. By arranging the temperature regulating tube 204 inside the mold body 201, the temperature of the mold can be adjusted during die-casting, and the mold can be preheated before die-casting to reach a certain temperature, which helps to reduce the temperature difference between the molten metal and the mold, reduce thermal stress, and thus reduce deformation and cracking of the mold;

[0029] The hydraulic mechanism 3 includes a hydraulic oil tank 303, a hydraulic pump 304, a hydraulic oil pipe 305, a hydraulic buffer rod 306 and a buffer spring 308. The hydraulic pump 304 is fixedly installed on the top of the hydraulic oil tank 303, and the output end of the hydraulic pump 304 is fixedly connected to the hydraulic oil pipe 305. One end of the hydraulic oil pipe 305 is connected to the bottom end of the hydraulic buffer rod 306. The bottom side of the output end of the hydraulic buffer rod 306 is fixedly connected to one end of the buffer spring 308. By adjusting the height of the hydraulic buffer rod 306 at the top of the mounting frame 101, the buffering extrusion force is indirectly adjusted. When the hydraulic extrusion rod 302 pushes the extrusion plate 401 and the die-casting head 402 to move downward, the extrusion plate 401 squeezes the hydraulic buffer rod 306 to contract downward, thereby compressing or releasing the hydraulic oil buffering descending force. By arranging an oil buffer spring 308 at the output end of the hydraulic buffer rod 306, it is convenient to slowly limit the rebound force under the action of the buffer spring 308.

[0030] In one embodiment, specifically, the mounting mechanism 1 includes a mounting frame 101, a base plate 102, a limit rail 103, a connector 104, an electric push rod 105, a limit plate 106 and a mounting hole 107. The rear side of the mounting frame 101 is fixedly connected to the base plate 102, the interior of the mounting frame 101 is fixedly connected to the limit rail 103, the left and right sides of the mounting frame 101 are respectively fixedly connected to the electric push rod 105, the output end of the electric push rod 105 is fixedly connected to the connector 104, and the electric push rod 105 is started to push the mold body 201 upward to facilitate the extraction of the high-temperature mold body 201.

[0031] In one embodiment, specifically, the top end of the base plate 102 is fixedly connected to the bottom end of the hydraulic oil tank 303, the outer wall of the limit rail 103 is slidably connected to the inside of the limit groove 202, the outer wall of the connecting head 104 is slidably connected to the inside of the connecting plate 203, and the connecting plate 203 and the connecting head 104 are fixedly connected by a movable pin to facilitate quick disassembly and installation of the mold body 201.

[0032] In one embodiment, specifically, a mounting hole 107 is opened at the top of the mounting frame 101, and the interior of the mounting hole 107 is fixedly mounted on the outer wall of the hydraulic buffer rod 306. The interior of the mounting hole 107 is fixedly connected to the bottom end of the buffer spring 308, and the top of the base plate 102 is fixedly connected to the limiting plate 106, so as to facilitate the quick installation of the hydraulic buffer rod 306.

[0033] In one embodiment, specifically, the hydraulic mechanism 3 further includes a top plate 301 and a hydraulic extrusion rod 302 , the hydraulic extrusion rod 302 is fixedly connected inside the top plate 301 , and the bottom end of the top plate 301 is fixedly connected to the top end of the limiting plate 106 .

[0034] In one embodiment, specifically, the extrusion mechanism 4 includes an extrusion plate 401, a die-casting head 402 and an air vent 403. The top end of the extrusion plate 401 is fixedly connected to the output end of the hydraulic extrusion rod 302, the bottom end of the extrusion plate 401 is fixedly connected to the die-casting head 402, and the outer wall of the die-casting head 402 is provided with an air vent 403. By starting the hydraulic pump 304 to supply oil to the hydraulic extrusion rod 302, the die-casting head 402 can be pushed to move downward.

[0035] In one embodiment, specifically, the extrusion plate 401 is slidably connected to the outer wall of the limiting plate 106 to improve the sliding stability of the extrusion plate 401 .

[0036] In one embodiment, specifically, one end of the hydraulic oil pipe 305 is connected to the hydraulic extrusion rod 302 to facilitate oil supply to the hydraulic extrusion rod 302 .

[0037] When the utility model is working, the mold to be die-cast is inserted into the limiting rail 103 inside the mounting frame 101 along the limiting groove 202, and the temperature regulating tube 204 is led out along the mounting frame 101. By adjusting the height of the hydraulic buffer rod 306 at the top of the mounting frame 101, the buffering extrusion force is indirectly adjusted. When the hydraulic extrusion rod 302 pushes the extrusion plate 401 and the die-casting head 402 to move downward, the extrusion plate 401 squeezes the hydraulic buffer rod 306 to contract downward, thereby compressing or releasing the hydraulic oil buffering descending force. By arranging an oil buffer spring 308 at the output end of the hydraulic buffer rod 306, it is convenient to slowly limit the rebound force under the action of the buffer spring 308. By providing an air vent 403 inside the die-casting head 402, the gas generated by metal forging can be effectively discharged. By starting the hydraulic pump 304 to supply oil to the hydraulic extrusion rod 302, the die-casting head 402 can be pushed to move downward. After die-casting, the bolts are loosened and the electric push rod 105 is started to push the mold body 201 upward to facilitate the extraction of the high-temperature mold body 201. By providing a temperature regulating tube 204 inside the mold body 201, the temperature of the mold can be adjusted during die-casting. Before die-casting, the mold is preheated to a certain temperature, which helps to reduce the temperature difference between the molten metal and the mold, reduce thermal stress, and thus reduce deformation and cracking of the mold.

[0038] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A damping structure in a die casting mold, comprising a mounting mechanism (1), a mold mechanism (2), a hydraulic mechanism (3) and an extrusion mechanism (4), characterized in that: The mold mechanism (2) comprises a mold body (201), a limiting groove (202), a connecting plate (203) and a temperature regulating tube (204); the left and right sides of the mold body (201) are respectively provided with symmetrical limiting grooves (202); the left and right sides of the mold body (201) are respectively fixedly connected with connecting plates (203); and the interior of the mold body (201) is fixedly connected with a temperature regulating tube (204); The hydraulic mechanism (3) comprises a hydraulic oil tank (303), a hydraulic pump (304), a hydraulic oil pipe (305), a hydraulic buffer rod (306) and a buffer spring (308); the hydraulic pump (304) is fixedly mounted on the top of the hydraulic oil tank (303); the output end of the hydraulic pump (304) is fixedly connected to the hydraulic oil pipe (305); one end of the hydraulic oil pipe (305) is connected to the bottom end of the hydraulic buffer rod (306); and the bottom side of the output end of the hydraulic buffer rod (306) is fixedly connected to one end of the buffer spring (308).

2. The shock absorbing structure in a die casting mold according to claim 1, characterized in that: The mounting mechanism (1) comprises a mounting frame (101), a base plate (102), a limit rail (103), a connector (104), an electric push rod (105), a limit plate (106) and a mounting hole (107); the rear side of the mounting frame (101) is fixedly connected to the base plate (102); the interior of the mounting frame (101) is fixedly connected to the limit rail (103); the left and right sides of the mounting frame (101) are respectively fixedly connected to the electric push rod (105); and the output end of the electric push rod (105) is fixedly connected to the connector (104).

3. The shock absorbing structure in a die casting mold according to claim 2, characterized in that: The top end of the bottom plate (102) is fixedly connected to the bottom end of the hydraulic oil tank (303), the outer wall of the limit rail (103) is slidably connected to the inside of the limit groove (202), the outer wall of the connecting head (104) is slidably connected to the inside of the connecting plate (203), and the connecting plate (203) and the connecting head (104) are fixedly connected by a movable pin.

4. The shock absorbing structure in a die casting mold according to claim 2, characterized in that: A mounting hole (107) is provided at the top of the mounting frame (101); the interior of the mounting hole (107) is fixedly mounted on the outer wall of the hydraulic buffer rod (306); the interior of the mounting hole (107) is fixedly connected to the bottom end of the buffer spring (308); and the top of the bottom plate (102) is fixedly connected to the limiting plate (106).

5. The shock absorbing structure in a die casting mold according to claim 1, characterized in that: The hydraulic mechanism (3) further comprises a top plate (301) and a hydraulic extrusion rod (302); the top plate (301) is fixedly connected to the inside of the hydraulic extrusion rod (302); and the bottom end of the top plate (301) is fixedly connected to the top end of the limit plate (106).

6. The shock absorbing structure in a die casting mold according to claim 1, characterized in that: The extrusion mechanism (4) comprises an extrusion plate (401), a die-casting head (402) and an air vent (403); the top end of the extrusion plate (401) is fixedly connected to the output end of the hydraulic extrusion rod (302); the bottom end of the extrusion plate (401) is fixedly connected to the die-casting head (402); and the outer wall of the die-casting head (402) is provided with an air vent (403).

7. The shock absorbing structure in a die casting mold according to claim 6, characterized in that: The extrusion plate (401) is slidably connected to the outer wall of the limiting plate (106).

8. The shock absorbing structure in a die casting mold according to claim 1, characterized in that: One end of the hydraulic oil pipe (305) is connected to the hydraulic extrusion rod (302).

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