Leakage-proof steel casting die-casting die

Abstract

The utility model discloses a liquid-leakage-proof steel casting die-casting die which comprises a die-casting frame, an injection device is installed on one side of the die-casting frame, a hydraulic cylinder is fixedly connected to the other side of the die-casting frame, a movable die is installed on a piston rod of the hydraulic cylinder, an injection pipe of the injection device is connected with a die base in a penetrating mode, and the die base is fixedly connected with the die-casting frame. A fixed mold is mounted on the inner side of the mold seat; a die changing assembly is arranged between the hydraulic cylinder and the movable die, a plurality of quick disassembling mechanisms are arranged between the die base and the fixed die, and anti-seepage mechanisms are arranged on the surface of the movable die and the surface of the fixed die. Wherein the die changing assembly comprises a mounting sleeve fixedly connected with the hydraulic cylinder; by means of the die changing assembly and the quick disassembling mechanism, the problems that time and labor are wasted when a traditional die is installed through bolts, and the use of the whole die is affected due to thread slipping are solved, the service life of the die is prolonged, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a leakage-proof die casting mould for steel castings. Background Art

[0002] Publication No. CN220361977U discloses a die-casting mold for precision steel castings, comprising: a base, a first die-casting mold is installed above the base, and a first die cavity is arranged on one side inside the first die-casting mold, a second die-casting mold is arranged on one side inside the first die-casting mold, and a second die cavity is arranged on one side inside the second die-casting mold; a first telescopic driving member, the first telescopic driving member is installed on one side of the top of the base; a pressure chamber, the pressure chamber is arranged on the side of the first die-casting mold away from the second die-casting mold, and a shot piston is arranged inside the pressure chamber, and a barrel is installed above the pressure chamber; a second telescopic driving member, the second telescopic driving member is installed on the other side of the top of the base; a positioning structure, the positioning structure is arranged at the connection between the first die-casting mold and the first die cavity, this device can not only position the first die-casting mold and the second die-casting mold, so that the mold clamping is more accurate, there will be no deviation or loosening, to ensure the molding effect of precision steel castings, and the molten metal will not leak, but the patent still has the following problems in actual use:

[0003] However, the first die-casting mold and the second die-casting mold in the above-mentioned device are not removable and replaceable, and are not suitable for situations where molds need to be replaced in actual production. The most common fixing and installation method of existing die-casting molds is bolt fixing, which is one of the most commonly used methods for fixing and installing die-casting molds. In order to ensure the stable installation of the mold, many bolts are used, and the bolts are tightened very tightly, which makes it time-consuming and laborious to disassemble the die-casting mold. Moreover, when the bolts are disassembled too many times, the threaded holes on the mold may slip, causing damage to the entire mold.

[0004] A liquid-leakage-proof die-casting mold for steel castings is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid-leakage-proof die-casting mold for cast steel parts, so as to solve the problem that bolt fixing is one of the most commonly used methods for fixing and installing the die-casting mold, and in order to ensure the stable installation of the mold, many bolts are used, and the bolts are tightened very tightly, which makes it time-consuming and laborious to disassemble the die-casting mold, and may cause the threaded holes on the mold to slip, and the entire mold to be damaged.

[0006] To achieve the above object, the utility model provides the following technical solutions: a liquid-leakage-proof die-casting mold for steel castings, comprising a die-casting frame, a pressure-injection device is installed on one side of the die-casting frame, a hydraulic cylinder is fixedly connected to the other side of the die-casting frame, a movable mold is installed on the piston rod of the hydraulic cylinder, an injection pipe of the pressure-injection device is penetrated and connected with a mold seat, the mold seat is fixed to the inner side of the die-casting frame, and a fixed mold is installed on the inner side of the mold seat;

[0007] A mold changing assembly is provided between the hydraulic cylinder and the movable mold, a plurality of quick-release mechanisms are provided between the mold base and the fixed mold, and anti-seepage mechanisms are provided on the surfaces of the movable mold and the fixed mold;

[0008] Among them, the mold changing assembly includes a mounting sleeve fixedly connected to the hydraulic cylinder, a cavity is opened inside the mounting sleeve, the side of the movable mold close to the hydraulic cylinder and the inside of the cavity are fixedly connected with mounting columns, and the outer side of the mounting column is fixedly connected with a snap hook plate and a trapezoidal bar.

[0009] Preferably, the snap hook plates on different mounting posts are snap-connected to the trapezoidal bars, the snap hook plates on the same mounting post are symmetrically distributed, the trapezoidal bars are located on the sides of the snap hook plates and the two trapezoidal bars are distributed at 180 degrees, and a rubber pad is fixedly connected to the side close to the mounting post.

[0010] Preferably, a threaded hole is opened on the outer side of the mounting column, the threaded hole is located on one side of the trapezoidal bar, the threaded hole is threadedly connected to a limiting bolt, and the limiting bolt passes through one side of the mounting sleeve.

[0011] Preferably, a fool-proof column is fixedly connected to one side of the movable mold close to the mounting sleeve, and the fool-proof column is slidably connected to an fool-proof groove opened on the side of the mounting sleeve.

[0012] Preferably, the quick-release mechanism includes a plurality of half-circles symmetrically fixed at the gap between the fixed mold and the mold seat, the outer side of the half-circle is slidably connected to a force handle, the interior of the half-circle is provided with a limiting slide groove, the limiting slide groove is fixedly connected to a movable plate, the movable plate extends out of the limiting slide groove and is fixedly connected to a semicircular plate, the two force handles are distributed at 180 degrees, the force handle extends into the interior of the half-circle and is fixedly connected to the movable plate.

[0013] Preferably, a receiving cavity is provided on one side of the movable mold close to the mold seat, the area of ​​the receiving cavity is larger than two half-circles, and a proofreading pin fixedly connected to the movable mold is provided on one side of the receiving cavity, and the proofreading pin is plugged into the mold seat.

[0014] Preferably, the anti-seepage mechanism includes a first anti-seepage ring fixed to the side of the movable mold close to the mold seat, the outer side of the first anti-seepage ring is provided with a first circle groove opened on the surface of the movable mold, the first circle groove is snap-connected with a second anti-seepage ring fixed on the surface of the fixed mold, and the first anti-seepage ring is snap-connected with a second circle groove fixed on the surface of the fixed mold.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the leak-proof steel casting die-casting mold avoids the time-consuming and labor-intensive installation of the traditional mold by bolts, the thread slippage affecting the use of the entire mold, and increases the service life of the mold and the work efficiency. The specific contents are as follows:

[0016] 1. Through the mold changing assembly and quick release mechanism, the mobile mold and the fixed mold can be quickly disassembled and assembled without bolts, avoiding the time-consuming and labor-intensive installation of traditional molds through bolts, and the situation where thread stripping affects the entire mold, thereby increasing the service life of the mold and improving work efficiency.

[0017] 2. When the movable mold and the fixed mold are docked and die-cast, the first anti-seepage ring will be stuck in the second ring groove, and the second anti-seepage ring will be stuck in the first ring groove, forming a double-layer isolation structure, so that when a slight leakage of the liquid occurs, it will be blocked in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-section structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the side structure of the installation sleeve;

[0021] Figure 4 It is a schematic diagram of the installation structure of the installation sleeve and the movable mold;

[0022] Figure 5 It is a schematic diagram of the structure in two states: the force-bearing handle is rotated and the handle is not rotated;

[0023] Figure 6 It is a schematic diagram of the side view installation structure of the mobile mold.

[0024] In the figure: 1. die-casting frame; 101. injection device; 102. mold base; 103. hydraulic cylinder; 104. movable mold; 105. fixed mold; 2. mold changing assembly; 201. mounting sleeve; 202. mounting column; 203. snap hook plate; 204. trapezoidal bar; 205. anti-fool groove; 206. threaded hole; 207. rubber pad; 208. anti-fool column; 209. limit bolt; 3. quick release mechanism; 301. half circle; 302. force handle; 303. limit slide groove; 304. movable plate; 305. semicircular plate; 306. accommodating cavity; 307. proofing column; 4. anti-seepage mechanism; 401. first anti-seepage ring; 402. first circle groove; 403. second anti-seepage ring; 404. second circle groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a leakage-proof die-casting mold for cast steel parts, including a die-casting frame 1, a shot device 101 is installed on one side of the die-casting frame 1, a hydraulic cylinder 103 is fixedly connected to the other side of the die-casting frame 1, a movable mold 104 is installed on the piston rod of the hydraulic cylinder 103, an injection tube of the shot device 101 is connected through a mold base 102, the mold base 102 is fixed to the inner side of the die-casting frame 1, and a fixed mold 105 is installed on the inner side of the mold base 102; a steel part cavity is opened on the inner side of the movable mold 104 and the fixed mold 105, and the injection tube of the shot device 101 is connected to the steel part cavity.

[0027] A mold changing assembly 2 is provided between the hydraulic cylinder 103 and the movable mold 104, a plurality of quick-release mechanisms 3 are provided between the mold base 102 and the fixed mold 105, and an anti-seepage mechanism 4 is provided on the surfaces of the movable mold 104 and the fixed mold 105; wherein the mold changing assembly 2 comprises a mounting sleeve 201 fixedly connected to the hydraulic cylinder 103, a cavity is provided inside the mounting sleeve 201, a mounting column 202 is fixedly connected to the side of the movable mold 104 close to the hydraulic cylinder 103 and the inside of the cavity, and a snap hook plate 203 and a ladder are fixedly connected to the outer side of the mounting column 202 The snap hook plates 203 on different mounting posts 202 are snapped and connected with the trapezoidal bars 204. The snap hook plates 203 on the same mounting post 202 are symmetrically distributed. The trapezoidal bars 204 are located on the sides of the snap hook plates 203 and the two trapezoidal bars 204 are distributed at 180 degrees. A rubber pad 207 is fixedly connected to the side close to the mounting post 202. When the snap hook plates 203 pass through the inclined surface of the trapezoidal bar 204 to reach the plane, the two mounting posts 202 are pulled closer, thereby squeezing the rubber pad 207 to increase the stability of the movable mold 104 during installation.

[0028] A threaded hole 206 is provided on the outer side of the mounting column 202, and the threaded hole 206 is located on one side of the trapezoidal bar 204. The threaded hole 206 is threadedly connected to a limiting bolt 209, and the limiting bolt 209 passes through one side of the mounting sleeve 201; when the movable mold 104 is installed, the two snap hook plates 203 of different mounting columns 202 are fitted together, and one side of the snap hook plate 203 on the movable mold 104 will fit the limiting bolt 209.

[0029] The movable mold 104 is fixedly connected to a fool-proof column 208 on one side close to the mounting sleeve 201, and the fool-proof column 208 is slidably connected to a fool-proof groove 205 opened on the side of the mounting sleeve 201; the fool-proof groove 205 and the fool-proof column 208 can ensure that the orientation of the movable mold 104 is fixed during installation, so that the die-cast product is in the set placement shape, avoiding the wrong direction of the movable mold 104 during installation.

[0030] The quick-release mechanism 3 includes a plurality of half-hooks 301 symmetrically fixed at the gap between the fixed mold 105 and the mold seat 102, a force handle 302 is slidably connected to the outer side of the half-hooks 301, a limiting slide groove 303 is arranged inside the half-hooks 301, a movable plate 304 is fixedly connected to the limiting slide groove 303, the movable plate 304 extends out of the limiting slide groove 303 and is fixedly connected to a semicircular plate 305, the two force handles 302 are distributed at 180 degrees, the force handles 302 extend into the interior of the half-hooks 301 and are fixedly connected to the movable plate 304; the two half-hooks 301 are two semicircles with the same diameter, the movable plate 304 can slide from one limiting slide groove 303 into another limiting slide groove 303, and is located in the two limiting slide grooves 303 at the same time, so as to fix the two half-hooks 301.

[0031] A accommodating cavity 306 is provided on one side of the movable mold 104 close to the mold base 102, and the area of ​​the accommodating cavity 306 is larger than the two half-hooks 301. A proofreading pin 307 fixedly connected to the movable mold 104 is provided on one side of the accommodating cavity 306, and the proofreading pin 307 is plugged into the mold base 102; a docking port is provided on the mold base 102, and the seamless connection between the proofreading pin 307 and the proofreading pin 307 can timely observe whether the movable mold 104 and the fixed mold 105 are misaligned during docking, thereby avoiding leakage due to mold misalignment, and the accommodating cavity 306 can completely cover the two half-hooks 301.

[0032] The anti-seepage mechanism 4 includes a first anti-seepage ring 401 fixed to the side of the movable mold 104 close to the mold seat 102, and the outer side of the first anti-seepage ring 401 is provided with a first circle groove 402 opened on the surface of the movable mold 104, the first circle groove 402 is snap-connected with the second anti-seepage ring 403 fixed on the surface of the fixed mold 105, and the first anti-seepage ring 401 is snap-connected with the second circle groove 404 fixed on the surface of the fixed mold 105; the snap-fit ​​between the first circle groove 402 and the second anti-seepage ring 403, and the snap-fit ​​between the second circle groove 404 and the first anti-seepage ring 401 are all seamlessly interlocked, thereby forming a double separation structure.

[0033] Working principle: Before using this leak-proof steel casting die-casting mold, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6 As shown, when it is necessary to disassemble the movable mold 104 and the fixed mold 105;

[0034] The stop bolt 209 is rotated to be removed from the threaded hole 206, and then the entire movable mold 104 is rotated, so that the snap hook plate 203 slides along the horizontal plane of the trapezoidal bar 204, and is disengaged from the trapezoidal bar 204 after passing the inclined surface of the trapezoidal bar 204, so that the movable mold 104 can be quickly removed from the mounting sleeve 201;

[0035] The foolproof groove 205 and the foolproof column 208 can ensure that the movable mold 104 is fixed in direction during installation, so that the die-cast product is placed in a set shape;

[0036] When the snap hook plate 203 passes through the inclined surface of the trapezoidal bar 204 and reaches the plane, it will pull the two mounting posts 202 closer together, thereby squeezing the rubber pad 207, increasing the stability of the movable mold 104 during installation, and the limiting bolt 209 can limit the position of the snap hook plate 203 on the trapezoidal bar 204 after the movable mold 104 is installed, thereby preventing the snap hook plate 203 from moving along the plane of the trapezoidal bar 204 due to vibration;

[0037] When the fixed mold 105 needs to be disassembled, it is only necessary to rotate the force handle 302 so that the movable plate 304 originally located in two different limiting slide grooves 303 slides into a single limiting slide groove 303, so that the two half-hooks 301 are independent of each other, and the fixed mold 105 can be quickly disassembled;

[0038] When the movable mold 104 and the fixed mold 105 are docked with each other and die-cast, the first anti-seepage ring 401 will be stuck in the second circle groove 404, and the second anti-seepage ring 403 will be stuck in the first circle groove 402, so that when a slight leakage of liquid occurs, it will be blocked in time.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid-leakage-proof die-casting mold for steel castings, comprising a die-casting frame (1), a shot-jet device (101) being installed on one side of the die-casting frame (1), a hydraulic cylinder (103) being fixedly connected to the other side of the die-casting frame (1), a movable mold (104) being installed on the piston rod of the hydraulic cylinder (103), an injection tube of the shot-jet device (101) being penetrated and connected with a mold base (102), the mold base (102) being fixed to the inner side of the die-casting frame (1), and a fixed mold (105) being installed on the inner side of the mold base (102); It is characterized in that Also includes: A mold changing assembly (2) is provided between the hydraulic cylinder (103) and the movable mold (104), a plurality of quick-release mechanisms (3) are provided between the mold base (102) and the fixed mold (105), and anti-seepage mechanisms (4) are provided on the surfaces of the movable mold (104) and the fixed mold (105); The mold changing assembly (2) comprises a mounting sleeve (201) fixedly connected to the hydraulic cylinder (103), a cavity is provided inside the mounting sleeve (201), a mounting column (202) is fixedly connected to the side of the movable mold (104) close to the hydraulic cylinder (103) and the inside of the cavity, and a snap hook plate (203) and a trapezoidal bar (204) are fixedly connected to the outer side of the mounting column (202).

2. The liquid-leakage-proof steel casting die-casting mold according to claim 1, characterized in that: The snap hook plates (203) on different mounting posts (202) are snap-connected with the trapezoidal bars (204); the snap hook plates (203) on the same mounting post (202) are symmetrically distributed; the trapezoidal bars (204) are located on the side of the snap hook plates (203) and the two trapezoidal bars (204) are distributed at 180 degrees; and a rubber pad (207) is fixedly connected to the side close to the mounting post (202).

3. The liquid-leakage-proof die-casting mold for steel castings according to claim 2, characterized in that: A threaded hole (206) is provided on the outer side of the mounting column (202), the threaded hole (206) is located on one side of the trapezoidal bar (204), the threaded hole (206) is threadedly connected to a limiting bolt (209), and the limiting bolt (209) passes through one side of the mounting sleeve (201).

4. The liquid-leakage-proof steel casting die-casting mold according to claim 1, characterized in that: A fool-proof column (208) is fixedly connected to one side of the movable mold (104) close to the installation sleeve (201), and the fool-proof column (208) is slidably connected to an fool-proof groove (205) opened on the side of the installation sleeve (201).

5. The liquid-leakage-proof steel casting die-casting mold according to claim 1, characterized in that: The quick release mechanism (3) comprises a plurality of half-circle sleeves (301) symmetrically fixed at the gap between the fixed mold (105) and the mold base (102); the outer side of the half-circle sleeve (301) is slidably connected to a force-bearing handle (302); a limiting sliding groove (303) is provided inside the half-circle sleeve (301); the limiting sliding groove (303) is fixedly connected to a movable plate (304); the movable plate (304) extends out of the limiting sliding groove (303) and is fixedly connected to a semicircular plate (305); the two force-bearing handles (302) are distributed at 180 degrees; the force-bearing handle (302) extends into the interior of the half-circle sleeve (301) and is fixedly connected to the movable plate (304).

6. The liquid-leakage-proof die-casting mold for steel castings according to claim 5, characterized in that: A receiving cavity (306) is provided on one side of the movable mold (104) close to the mold base (102); the area of ​​the receiving cavity (306) is larger than the two half-rings (301); a calibration plug (307) fixedly connected to the movable mold (104) is provided on one side of the receiving cavity (306); the calibration plug (307) is plugged into the mold base (102).

7. The liquid-leakage-proof die-casting mold for steel castings according to claim 1, characterized in that: The anti-seepage mechanism (4) comprises a first anti-seepage ring (401) fixed to a side of the movable mold (104) close to the mold seat (102); the outer side of the first anti-seepage ring (401) is provided with a first circle groove (402) opened on the surface of the movable mold (104); the first circle groove (402) is snap-fittedly connected to a second anti-seepage ring (403) fixed to the surface of the fixed mold (105); the first anti-seepage ring (401) is snap-fittedly connected to a second circle groove (404) fixed to the surface of the fixed mold (105).

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