Convenient-to-disassemble die-casting die for die-casting machine

Abstract

The utility model belongs to the technical field of die-casting dies, and particularly provides a die-casting die convenient to disassemble for a die-casting machine, which comprises an upper die frame, a lower die frame, a support mechanism and a die core, the upper die frame is positioned above the lower die frame, the support mechanism is fixedly mounted at the bottom of the lower die frame, and the die core consists of a lower die core and an upper die core. The lower mold core and the upper mold core are fixed in the lower mold frame and the upper mold frame correspondingly, the mold further comprises a locking mechanism, built-in gas circuits are arranged in the upper mold frame and the lower mold frame correspondingly, and storage grooves are formed in the inner wall of the upper mold frame and the inner wall of the lower mold frame correspondingly; the locking mechanism comprises a swing block, a pin groove, an elastic pin, an arc-shaped air push rod and a hose. A worker can control a plurality of locking mechanisms to synchronously release or store through a single tool in a pneumatic driving mode, so that the disassembly and assembly of the mold core are completed, and the replacement efficiency of the mold core is greatly improved; the elastic pin and the swing block of the locking mechanism are used in cooperation, stress points are dispersed, concentrated stress of a shaft connected with the swing block is avoided, and it is guaranteed that the equipment has the long service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-casting molds, and in particular provides a detachable die-casting mold for a die-casting machine. Background Art

[0002] The basic working principle of the die casting process is to pressurize the molten metal into the mold cavity, and then through the follow-up of the movable cavity, the shrinkage cavity and shrinkage are eliminated, and the forged grains in the blank are broken. Among them, the die casting mold is the key component of the die casting equipment.

[0003] A die-casting mold is usually composed of a mold frame and a mold core. The mold core is assembled on the mold frame by multiple bolts. The assembly process is relatively complicated, which makes the mold core replacement cumbersome and requires a variety of tools, affecting the production efficiency of the die-casting workshop. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a detachable die-casting mold for a die-casting machine, including an upper mold frame, a lower mold frame, a supporting mechanism and a mold core, the upper mold frame is located above the lower mold frame, the supporting mechanism is fixedly installed at the bottom of the lower mold frame, the mold core is composed of a lower mold core and an upper mold core, the lower mold core and the upper mold core are respectively fixed in the lower mold frame and the upper mold frame, and also includes a locking mechanism, the interior of the upper mold frame and the lower mold frame are both provided with built-in air circuits, and the inner wall of the upper mold frame and the inner wall of the lower mold frame are both provided with storage grooves, the locking mechanism is assembled in the storage groove, the locking mechanism is connected to the built-in air circuit, and the locking mechanism can pop out under air pressure drive, the side wall of the lower mold core and the side wall of the upper mold core are both provided with locking grooves, and the locking mechanism is stuck in the locking groove when it pops out.

[0005] Furthermore, the locking mechanism includes a pendulum block, a pin groove, a spring pin, an arc-shaped air push rod and a hose. The pendulum block is a bar-shaped structure. One end of the pendulum block is installed in the storage groove through an axis rotation. The other end of the pendulum block is provided with a notch, and a pin groove is provided in the notch. The spring pin is assembled in the pin groove through a straight pneumatic push rod. The arc-shaped air push rod is assembled between the side wall of the pendulum block and the side wall of the storage groove, and is used to push the arc-shaped air push rod to rotate around the axis. The straight pneumatic push rod is connected to the built-in air circuit through a hose, and the arc-shaped air push rod is directly connected to the built-in air circuit.

[0006] Furthermore, the built-in air circuit includes a main circuit and a threaded piston cylinder. The main circuit is arranged in a ring shape, and the main circuit and the storage groove are located at different horizontal planes. The threaded piston cylinder is arranged on the side wall of the upper mold frame or the lower mold frame. The main circuit is provided with multiple first branches and multiple second branches. The first branch and the second branch are respectively connected to the arc-shaped air push rod and the straight pneumatic push rod.

[0007] Furthermore, abutment blocks are provided on the side walls of the pendulum block and the inner walls of the storage groove. When the pendulum block is unfolded, the two abutment blocks abut against each other. The two abutment blocks are respectively provided with an inserted one-way sealing valve and a pressure nozzle. When the two abutment blocks abut against each other, the pressure nozzle is inserted into the inserted one-way sealing valve to make the air path conductive.

[0008] Furthermore, the upper mold frame is composed of an upper mold frame body, a cover plate and a connecting block. The cover plate is fixedly installed on the top of the upper mold frame body, the connecting block is embedded in the center of the upper mold frame body, and the upper surface of the connecting block is fixedly connected to the cover plate by bolts, and the lower surface of the connecting block is also fixedly connected to the mold core by bolts.

[0009] Furthermore, the lower mold frame is composed of a lower mold frame main body and a lower mold frame auxiliary body. Wedge grooves are opened on the side walls of the lower mold frame main body and the lower mold frame auxiliary body, wedge blocks are inserted into the wedge grooves, and the two are fixed by bolts. Guide blocks are set at the four corners of the lower mold frame main body, and guide grooves are set at the four corners of the lower mold frame auxiliary body, and the guide blocks match the guide grooves.

[0010] Furthermore, the supporting mechanism includes square iron, a ejector fixing plate and a push rod fixing plate, the two square irons are symmetrically assembled at the bottom of the lower mold frame, the ejector fixing plate and the push rod fixing plate are stacked up and down, and the ejector fixing plate and the push rod fixing plate are fixedly installed between the two square irons.

[0011] The beneficial effects of using the utility model are:

[0012] The staff can use a single tool, i.e. pneumatic drive, to control the simultaneous release or storage of multiple locking mechanisms to complete the disassembly and assembly of the mold core, greatly improving the efficiency of mold core replacement;

[0013] The spring pin of the locking mechanism and the swing block are used together to disperse the stress points, avoid concentrated stress on the shaft connected to the swing block, and ensure a long service life of the equipment;

[0014] The lower mold frame adopts a layered design and a semi-open gas path design to facilitate subsequent maintenance of the gas path structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the lower mold frame of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the lower mold frame auxiliary body of the utility model;

[0019] Figure 5 for Figure 4 The enlarged view of point a in the middle;

[0020] Figure 6 This is a schematic diagram of the structure of the built-in gas circuit of the utility model;

[0021] Figure 7 It is a structural schematic diagram of the mold core of the utility model;

[0022] Figure 8 It is a structural schematic diagram of the locking structure of the utility model;

[0023] Fig. 9 Another structural schematic diagram of the locking structure of the utility model;

[0024] Fig.10 It is a schematic diagram of the docking state of the pressure nozzle and the inserted one-way blocking valve when the locking mechanism of the utility model is in the unfolded state;

[0025] Fig.11 This is a structural schematic diagram of the semi-open gas circuit design of the utility model.

[0026] Reference numerals include:

[0027] 1. Upper mold frame; 101. Upper mold frame body; 102. Cover plate; 103. Connecting block;

[0028] 2. Lower mold frame; 201. Lower mold frame main body; 202. Lower mold frame auxiliary body; 203. Storage groove; 204. Wedge block; 205. Wedge groove; 206. Guide block; 207. Guide groove;

[0029] 3. Support mechanism; 301. Square iron; 302. Ejector fixing plate; 303. Push rod fixing plate;

[0030] 4. mold core; 401. lower mold core; 402. upper mold core; 403. locking groove;

[0031] 5. Built-in gas circuit; 501. Main circuit; 502. Threaded piston cylinder; 503. First branch circuit; 504. Second branch circuit; 505. Insertion-type one-way blocking valve;

[0032] 6. Locking mechanism; 601. Pendulum block; 602. Pin groove; 603. Spring pin; 604. Arc-shaped air push rod; 605. Hose; 606. Press nozzle. DETAILED DESCRIPTION

[0033] The utility model is described in detail below with reference to the accompanying drawings.

[0034] Reference Figure 1-Figure 9A detachable die-casting mold for a die-casting machine comprises an upper die frame 1, a lower die frame 2, a supporting mechanism 3, a mold core 4 and a locking mechanism 6. The upper die frame 1 is located above the lower die frame 2. The supporting mechanism 3 is fixedly installed at the bottom of the lower die frame 2. The upper die frame 1 and the lower die frame 2 are both provided with built-in air paths 5, and the inner walls of the upper die frame 1 and the lower die frame 2 are both provided with receiving grooves 203. The locking mechanism 6 is assembled in the receiving groove 203. The locking mechanism 6 is connected to the built-in air path 5, and the locking mechanism 6 can be ejected under air pressure driving;

[0035] The mold core 4 is composed of a lower mold core 401 and an upper mold core 402. The side walls of the lower mold core 401 and the upper mold core 402 are both provided with locking grooves 403. When the locking mechanism 6 pops out, it is inserted into the locking groove 403 to fix the lower mold core 401 and the upper mold core 402 in the lower mold frame 2 and the upper mold frame 1 respectively.

[0036] Control the locking mechanism 6 to release or retract by pneumatic means;

[0037] When the locking mechanism 6 is received in the receiving groove 203 , the staff puts the mold core 4 into the upper mold frame 1 or the lower mold frame 2 , and then releases the locking mechanism 6 through the built-in air circuit 5 ;

[0038] During the release process of the locking mechanism 6 , it rotates around the axis and finally fits into the locking groove 403 , thus completing the assembly of the mold core 4 .

[0039] Specifically, the locking mechanism 6 includes a swing block 601, a pin groove 602, an elastic pin 603, an arc-shaped gas push rod 604 and a hose 605. The swing block 601 is a bar-shaped structure. One end of the swing block 601 is installed in the storage groove 203 through an axis rotation. The other end of the swing block 601 is provided with a notch, and the notch is provided with a pin groove 602. The elastic pin 603 is assembled in the pin groove 602 through a straight pneumatic push rod. The arc-shaped gas push rod 604 is assembled between the side wall of the swing block 601 and the side wall of the storage groove 203, and is used to push the arc-shaped gas push rod 604 to rotate around the axis. The straight pneumatic push rod is connected to the built-in gas path 5 through a hose 605, and the arc-shaped gas push rod 604 is directly connected to the built-in gas path 5.

[0040] The locking groove 403 is provided with a socket matching the elastic pin 603 .

[0041] The hose 605 may also be replaced by a built-in air passage solution, but the built-in air passage solution has the disadvantage of greatly increasing the difficulty of processing the locking mechanism 6 .

[0042] Preferably, the end face, notch and inner wall of the locking groove 403 of the pendulum block 601 are all designed to be arc-shaped surfaces, and the outer end of the elastic pin 603 is a conical structure, which plays a guiding role when the structures contact each other.

[0043] The built-in gas circuit 5 includes a main circuit 501 and a threaded piston cylinder 502. The main circuit 501 is arranged in an annular shape, and the main circuit 501 and the receiving groove 203 are located at different horizontal planes. The threaded piston cylinder 502 is arranged on the side wall of the upper mold frame 1 or the lower mold frame 2. The main circuit 501 is provided with a plurality of first branches 503 and a plurality of second branches 504. The first branches 503 and the second branches 504 are respectively connected to the arc-shaped gas push rod 604 and the straight pneumatic push rod.

[0044] Preferably, the piston column of the threaded piston cylinder 502 is connected to an external tool through an internal hexagonal groove. The staff rotates the piston column through an external attack to press or extract the gas in the cylinder into or out of the main line 501 and the branch line, thereby achieving the purpose of controlling the locking mechanism 6 to release or store.

[0045] Reference Fig.10 Abutment blocks are provided on the side walls of the pendulum block 601 and the inner walls of the storage groove 203. When the pendulum block 601 is unfolded, the two abutment blocks abut against each other. The two abutment blocks are respectively provided with an inserted one-way sealing valve 505 and a pressure nozzle 606. When the two abutment blocks abut against each other, the pressure nozzle 606 is inserted into the inserted one-way sealing valve 505 to make the air path conductive.

[0046] The upper mold frame 1 is composed of an upper mold frame body 101, a cover plate 102 and a connecting block 103. The cover plate 102 is fixedly installed on the top of the upper mold frame body 101, and the connecting block 103 is embedded in the center of the upper mold frame body 101. The upper surface of the connecting block 103 is fixedly connected to the cover plate 102 by bolts, and the lower surface of the connecting block 103 is also fixedly connected to the mold core 4 by bolts.

[0047] The lower mold frame 2 is composed of a lower mold frame main body 201 and a lower mold frame auxiliary body 202. The side walls of the lower mold frame main body 201 and the lower mold frame auxiliary body 202 are both provided with wedge grooves 205. A wedge block 204 is inserted into the wedge groove 205. The two are fixed by bolts. The four corners of the lower mold frame main body 201 are provided with guide blocks 206. The four corners of the lower mold frame auxiliary body 202 are provided with guide grooves 207. The guide blocks 206 match the guide grooves 207.

[0048] Reference Fig.11 The built-in air circuit 5 is arranged on the upper surface of the lower mold frame body 201 or the lower surface of the lower mold frame auxiliary body 202, and the built-in air circuit 5 is a semi-open structure, which is embedded in the lower mold frame body 201 or the lower mold frame auxiliary body 202 through a detachable hoop, which is convenient for subsequent maintenance.

[0049] The supporting mechanism 3 includes a square iron 301, a ejector fixing plate 302 and a push rod fixing plate 303. The two square irons 301 are symmetrically assembled at the bottom of the lower mold frame 2. The ejector fixing plate 302 and the push rod fixing plate 303 are stacked up and down, and the ejector fixing plate 302 and the push rod fixing plate 303 are fixedly installed between the two square irons 301.

[0050] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A detachable die-casting mold for a die-casting machine, comprising an upper die frame, a lower die frame, a support mechanism and a die core, wherein the upper die frame is located above the lower die frame, the support mechanism is fixedly mounted on the bottom of the lower die frame, the die core is composed of a lower die core and an upper die core, the lower die core and the upper die core are respectively fixed in the lower die frame and the upper die frame, and the characteristics are: It also includes a locking mechanism. The interiors of the upper mold frame and the lower mold frame are both provided with built-in air circuits, and the inner walls of the upper mold frame and the lower mold frame are both provided with storage grooves. The locking mechanism is assembled in the storage grooves. The locking mechanism is connected to the built-in air circuit, and the locking mechanism can pop out under air pressure drive. The side walls of the lower mold core and the side walls of the upper mold core are both provided with locking grooves, and the locking mechanism is stuck in the locking grooves when it pops out.

2. A detachable die-casting mold for a die-casting machine according to claim 1, characterized in that: The locking mechanism includes a pendulum block, a pin groove, a spring pin, an arc-shaped air push rod and a hose. The pendulum block is a bar-shaped structure. One end of the pendulum block is installed in the storage groove through an axis rotation. The other end of the pendulum block is provided with a notch, and a pin groove is provided in the notch. The spring pin is assembled in the pin groove through a straight pneumatic push rod. The arc-shaped air push rod is assembled between the side wall of the pendulum block and the side wall of the storage groove, and is used to push the arc-shaped air push rod to rotate around the axis. The straight pneumatic push rod is connected to the built-in air circuit through a hose, and the arc-shaped air push rod is directly connected to the built-in air circuit.

3. According to the easily dismantled die-casting mold for a die-casting machine as claimed in claim 2, it is characterized in that: The built-in air circuit includes a main circuit and a threaded piston cylinder. The main circuit is arranged in a ring shape, and the main circuit and the storage groove are located at different horizontal planes. The threaded piston cylinder is arranged on the side wall of the upper mold frame or the lower mold frame. The main circuit is provided with multiple first branches and multiple second branches. The first branch and the second branch are respectively connected to the arc-shaped air push rod and the straight pneumatic push rod.

4. A detachable die-casting mold for a die-casting machine according to claim 3, characterized in that: Abutment blocks are arranged on the side wall of the swing block and the inner wall of the storage groove. When the swing block is unfolded, the two abutment blocks abut against each other. The two abutment blocks are respectively provided with an inserted one-way sealing valve and a pressure nozzle. When the two abutment blocks abut against each other, the pressure nozzle is inserted into the inserted one-way sealing valve to make the air path conductive.

5. The easily dismantled die-casting mold for a die-casting machine according to claim 1, characterized in that: The upper mold frame is composed of an upper mold frame body, a cover plate and a connecting block. The cover plate is fixedly installed on the top of the upper mold frame body, the connecting block is embedded in the center of the upper mold frame body, and the upper surface of the connecting block is fixedly connected to the cover plate by bolts, and the lower surface of the connecting block is also fixedly connected to the mold core by bolts.

6. The easily dismantled die-casting mold for a die-casting machine according to claim 1, characterized in that: The lower mold frame is composed of a lower mold frame main body and a lower mold frame auxiliary body. The side walls of the lower mold frame main body and the lower mold frame auxiliary body are both provided with wedge grooves, wedge blocks are inserted into the wedge grooves, and the two are fixed by bolts. Guide blocks are arranged at the four corners of the lower mold frame main body, and guide grooves are arranged at the four corners of the lower mold frame auxiliary body, and the guide blocks match the guide grooves.

7. The easily dismantled die-casting mold for a die-casting machine according to claim 1, characterized in that: The supporting mechanism comprises square iron, a ejector fixing plate and a push rod fixing plate, the two square irons are symmetrically assembled at the bottom of the lower mold frame, the ejector fixing plate and the push rod fixing plate are stacked up and down, and the ejector fixing plate and the push rod fixing plate are fixedly installed between the two square irons.

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