Die-casting die for producing explosion-proof lamp main body

Abstract

The utility model relates to the technical field of dies, in particular to a die-casting die for producing an explosion-proof lamp body, which sequentially comprises an upper die holder, a lower die holder and a demoulding mechanism for driving the lower die holder to lift from top to bottom, a lower die core is arranged in the middle of the lower die holder, and an upper die core corresponding to the lower die core is arranged in the middle of the upper die holder. A left die core and a right die core are embedded in the left side and the right side of the lower die core and the left side and the right side of the upper die core at the same time, a core pulling mechanism for driving the left die core and the right die core to move is arranged in the lower die base, and the upper die core, the lower die core, the left die core and the right die core form an explosion-proof lamp body die-casting cavity after die assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a die-casting mold for producing an explosion-proof lamp body. Background Art

[0002] LED explosion-proof work light is a lighting tool used in flammable and explosive working conditions, such as accident repair sites, tunnels, and coal mines.

[0003] The utility model patent with patent application number CN215061371U discloses an LED explosion-proof work lamp, including a lamp holder main body, a lamp holder mounting seat distributed at the end of the lamp holder main body and detachably connected to the lamp holder main body, a lamp source mounting cavity for placing a light source and having an opening at one end being provided in the middle of the lamp holder mounting seat, the lamp holder mounting seat is provided with a top cover distributed at the open end of the lamp source mounting cavity, the top cover includes a cover body and a connecting ring body distributed at the outer periphery of the cover body, the lamp holder mounting seat is detachably connected with a glass pressure ring distributed outside the open end of the lamp source mounting cavity and abutting against the connecting ring body, the connecting ring body is gap-matched with the lamp source mounting cavity and is distributed between the lamp source mounting cavity and the glass pressure ring along the axial direction of the lamp holder main body, a plurality of groups of disassembly screws are evenly distributed on the outer periphery of the glass pressure ring, the lamp holder mounting seat is respectively provided with connecting threaded holes corresponding to each group of disassembly screws, and a sealing mechanism is provided between the light source mounting cavity and the top cover.

[0004] The lamp holder body and the lamp holder mounting base of the above-mentioned LED explosion-proof work lamp are both made of die-casting. Since the lamp holder body and the lamp holder mounting base are detachably connected, two sets of molds are required to respectively produce the lamp holder body and the lamp holder mounting base, which increases the number of molds used, increases production costs, and affects the connection accuracy between the lamp holder body and the lamp holder mounting base, reducing the connection strength between the two. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a die-casting mold for producing an explosion-proof lamp body in view of the deficiencies of the above-mentioned prior art, so as to improve the production efficiency and precision.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting mold for producing an explosion-proof lamp body, comprising, from top to bottom, an upper die seat, a lower die seat and a demolding mechanism for driving the lower die seat to rise and fall, a lower die core is provided in the middle of the lower die seat, an upper die core corresponding to the lower die core is provided in the middle of the upper die seat, a left die core and a right die core are simultaneously embedded on the left and right sides of the lower die core and the upper die core, a core-pulling mechanism for driving the left and right die cores to move is provided in the lower die seat, and an explosion-proof lamp body die-casting cavity is formed after the upper die core, the lower die core, the left die core and the right die core are molded together, the explosion-proof lamp body die-casting cavity comprises a first cavity arranged in the right die core, the outer peripheral surface of the first cavity is a regular hexagon, the inner peripheral wall is a circle, and the right die core is also provided with a first cavity distributed in the first cavity. Five reinforcing rib grooves on the periphery of the chamber and a first rectangular groove, the first rectangular groove is arranged in the vertical direction and is connected to the first chamber, the reinforcing rib grooves are evenly distributed on the outer circumferential surface of the first chamber and are connected to the first chamber, the explosion-proof lamp body die-casting cavity also includes a first annular groove arranged on the left mold core, a plurality of connecting ear grooves are evenly distributed on the outer circumferential wall of the first annular groove, and a reinforcing rib groove is provided between the two connecting ear grooves, and the left mold core is also provided with a second annular groove and a first groove coaxially arranged with the first annular groove, the second annular groove and the first groove are both located in the first annular groove, the explosion-proof lamp body die-casting cavity also includes a first semi-annular groove arranged in the lower mold core, two connecting ear grooves are provided on the outer circumferential wall of the first semi-annular groove, and the connecting ear grooves are respectively arranged at On both sides of the right mold core, the connecting ear groove is connected with the first semi-annular groove, and the center of the connecting ear groove has a through hole. A third annular groove coaxial with the first semi-annular groove is provided in the lower mold core, and four evenly distributed connecting ear grooves are provided on the outer peripheral wall of the third annular groove, and the connecting ear groove is connected with the third annular groove, and the center of the connecting ear groove has a through hole. A second semi-annular groove is provided between the groove walls of the first semi-annular groove and the third annular groove, and the second semi-annular groove is respectively connected with the first semi-annular groove and the third annular groove. A second chamber with a bowl-shaped cross-section is provided at the matching position between the lower mold core and the left mold core, and a hemispherical third chamber is provided between the second chamber and the third annular groove, and a through hole is provided in the middle of the third chamber, and the center of the through hole is at the same position as the diameter of the third annular groove. In the same straight line, a giving way groove connecting the third chamber and the third annular groove is provided between the two, a first boss located in the third annular groove is provided on the lower mold core, a second rectangular groove, a first circular groove, an annular groove and a through hole are provided on the first boss, the explosion-proof lamp body die-casting cavity also includes a fourth annular groove arranged in the upper mold core, six connecting ear grooves are evenly distributed on the outer circumference of the fourth annular groove, the connecting ear grooves are connected to the fourth annular groove, a fourth chamber symmetrically arranged with the second chamber is also provided in the upper mold core, a fifth chamber connecting the fourth chamber and the fourth annular groove is provided between the fourth chamber and the fourth annular groove, a second boss located in the fourth annular groove is provided on the upper mold core, a circular groove is provided in the second boss, and a partition block is provided in the circular groove near the right mold core,One end of the partition block is rectangular and connected to the outer peripheral wall, and the other end is circular and extends into the circular groove. The end face of the partition block is lower than the end face of the second boss. The circular groove is provided with a composite groove formed by two connecting ear grooves near the left mold core. The composite groove is connected to the fourth annular groove. Two second circular grooves are also provided on the second boss near the right mold core. The two second circular grooves are symmetrically arranged along the diameter of the circular groove.

[0007] A further arrangement of the utility model is that a casting pipe and a centralized exhaust component are embedded in the lower mold base and the upper mold base, the casting pipe and the centralized exhaust component are respectively arranged on both sides of the lower mold base, the nozzle of the casting pipe is located on the end face of the upper mold base, the lower mold core is provided with four flow channels connected with the casting pipe, the flow channels include a first flow channel whose end is close to the left mold core, a second flow channel whose end is close to the first semi-annular groove, and a third flow channel and a fourth flow channel whose ends are close to the third annular groove, three exhaust channels are connected to the centralized exhaust component, including a first exhaust channel whose end is close to the left mold core, a second exhaust channel whose end is close to the right mold core, and a third exhaust channel, the third exhaust channel is provided with three branches, and the ends thereof extend respectively to near the third annular groove, the first exhaust channel and the three branches of the third exhaust channel are provided with a first slag bag, and a second slag bag adapted to the first slag bag is provided in the upper mold core.

[0008] A further arrangement of the utility model is: the core pulling mechanism includes a slider connected to the left mold core or the right mold core, and a slider bracket fixed in the lower mold base, the slider is provided with a plug-in groove plugged with the left mold core or the right mold core, the slider is slidably connected to the slider bracket, and can move closer to or away from the lower mold core along the slider bracket, the slider is provided with at least one inclined through hole, an inclined column is passed through the inclined through hole, a positioning hole adapted to the inclined column is provided in the upper mold base, one end of the inclined column passes through the positioning hole in the upper mold base, and the other end extends to the side of the lower mold base.

[0009] The utility model is further configured as follows: the casting tube comprises a truncated cone and a sleeve sleeved outside the truncated cone, a casting notch is arranged on the circumferential side of the truncated cone, a mounting plane abutting against the lower mold core is arranged on the circumferential side of the truncated cone, a discharge end of the casting notch is connected to the mounting plane, and the casting notch is connected to the lower mold core.

[0010] The utility model with the above-mentioned characteristics: by simultaneously setting the upper mold core, the lower mold core, the left mold core and the right mold core, an accurate explosion-proof lamp main body die-casting cavity can be formed when the mold is closed, which is helpful to complete the die-casting of multiple parts of the explosion-proof lamp main body at one time, thereby improving production efficiency and product precision, and improving the explosion-proof performance of the product; the connecting ear grooves and reinforcing rib grooves arranged in the die-casting cavity of the explosion-proof lamp main body can enhance the structural strength of the explosion-proof lamp main body and improve its durability and safety; a casting pipe and a centralized exhaust part are arranged in the mold, which can ensure that the molten metal flows smoothly during the die-casting process and effectively discharges the gas to avoid defects such as pores; the design of the first slag bag and the second slag bag in the mold can effectively collect the slag generated during the die-casting process to prevent the slag from entering the interior of the product and affecting the product quality; through the design of the demolding mechanism and the core pulling mechanism, the opening and closing of the mold and the movement of the mold core can be conveniently realized, thereby facilitating the removal of the die-cast explosion-proof lamp main body and improving production efficiency.

[0011] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] Figure 2 It is an exploded view of the die-casting mold according to an embodiment of the utility model.

[0014] Figure 3 It is a schematic structural diagram of the die-casting cavity of the explosion-proof lamp body located in the lower mold core according to an embodiment of the utility model.

[0015] Figure 4 It is a schematic structural diagram of the die-casting cavity of the explosion-proof lamp body located in the upper mold core according to an embodiment of the utility model.

[0016] Figure 5 It is a schematic structural diagram of the die-casting cavity of the explosion-proof lamp body located in the right mold core according to an embodiment of the utility model.

[0017] Figure 6 It is a schematic structural diagram of the die-casting cavity of the explosion-proof lamp body located in the left mold core according to an embodiment of the utility model.

[0018] Figure 7 The explosion of the core pulling mechanism of the utility model embodiment Figure 1 .

[0019] Figure 8 The explosion of the core pulling mechanism of the utility model embodiment Figure 2 .

[0020] Fig. 9 It is an exploded view of the casting tube according to an embodiment of the utility model. DETAILED DESCRIPTION

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] like Figure 1-9 The die-casting mold for producing the main body of an explosion-proof lamp shown in the figure comprises, from top to bottom, an upper die seat a1, a lower die seat a2 and a demoulding mechanism a3 for driving the lower die seat a2 to rise and fall, a lower die core a4 is provided in the middle of the lower die seat a2, an upper die core a5 corresponding to the lower die core a4 is provided in the middle of the upper die seat a1, a left die core a6 and a right die core a7 are embedded on both the left and right sides of the lower die core a4 and the upper die core a5, a core-pulling mechanism a8 for driving the left die core a6 and the right die core a7 to move is provided in the lower die seat a2, and the core-pulling mechanism a8 comprises a slider connected to the left die core or the right die core a81, a slider bracket a82 fixed in the lower mold base a2, the slider a81 is provided with a plug-in groove a811 plugged with the left mold core or the right mold core, the slider a81 is slidably connected with the slider bracket a82, and can move closer to or away from the lower mold core along the slider bracket a82, the slider a81 is provided with at least one oblique through hole, an oblique column a83 is penetrated in the oblique through hole, a positioning hole a101 adapted to the oblique column a83 is provided in the upper mold base a1, one end of the oblique column a83 passes through the positioning hole a101 in the upper mold base a1, and the other end extends to the side of the lower mold base a2;

[0023] The upper mold core a5, the lower mold core a4, the left mold core a6 and the right mold core a7 are molded together to form a die-casting cavity for the explosion-proof lamp body. The die-casting cavity for the explosion-proof lamp body includes a first cavity a9 arranged in the right mold core a7. The outer peripheral surface of the first cavity a9 is a regular hexagon and the inner peripheral wall is a circle. The right mold core a7 is also provided with five reinforcing rib grooves a10 distributed on the periphery of the first cavity a9 and a first rectangular groove a11. The first rectangular groove a11 is arranged in the vertical direction and is connected to the first cavity a9. The reinforcing rib grooves a10 are evenly distributed on the outer peripheral surface of the first cavity a9 and are connected to the first cavity a9. The die-casting cavity for the explosion-proof lamp body also includes a first annular groove a12 arranged on the left mold core a6. A plurality of connecting ear grooves a13 are evenly distributed on the outer peripheral wall of the first annular groove a12, which are connected in pairs. A reinforcing rib groove a10 is provided between the ear grooves a13, and a second annular groove a14 and a first groove a15 are also provided on the left mold core a6, which are coaxially arranged with the first annular groove a12. The second annular groove a14 and the first groove a15 are both located in the first annular groove a12. The die-casting cavity of the explosion-proof lamp body also includes a first semi-annular groove a16 provided in the lower mold core a4, and two connecting ear grooves a13 are provided on the outer peripheral wall of the first semi-annular groove a16. The connecting ear grooves a13 are arranged on both sides of the right mold core a7, and the connecting ear grooves a13 are connected to the first semi-annular groove a16. The center of the connecting ear groove a13 has a through hole a25, and a third annular groove a17 coaxially arranged with the first semi-annular groove a16 is provided in the lower mold core a4, and four A uniformly distributed connecting ear groove a13 is provided, the connecting ear groove a13 is connected with the third annular groove a17, a through hole a25 is provided in the center of the connecting ear groove a13, a second semi-annular groove a18 is provided between the groove walls of the first semi-annular groove a16 and the third annular groove a17, the second semi-annular groove a18 is connected with the first semi-annular groove a16 and the third annular groove a17 respectively, a second chamber a19 with a bowl-shaped cross section is provided at the matching position between the lower mold core a4 and the left mold core a6, a hemispherical third chamber a20 is provided between the second chamber a19 and the third annular groove a17, a through hole a25 is provided in the middle of the third chamber a20, the center of the through hole a25 is located in the same straight line as the diameter of the third annular groove a17, a through hole a25 is provided between the third chamber a20 and the third annular groove a17 There is a give way groove a21 connecting the two, the lower mold core a4 is provided with a first boss a41 located in the third annular groove a17, the first boss a41 is provided with a second rectangular groove a22, a first circular groove a23, an annular groove a24 and a through hole a25, the explosion-proof lamp body die-casting cavity also includes a fourth annular groove a26 arranged in the upper mold core a5, the outer periphery of the fourth annular groove a26 is evenly distributed with six connecting ear grooves a13, the connecting ear grooves a13 are connected to the fourth annular groove a26, the upper mold core a5 is also provided with a fourth cavity a27 symmetrically arranged with the second cavity a19, a fifth cavity a28 connecting the fourth cavity a27 and the fourth annular groove a26 is provided between the fourth cavity a27 and the fourth annular groove a26, the upper mold core a5 is provided with a second boss a51 located in the fourth annular groove a26,A circular groove a29 is provided in the second boss a51. A partition block a52 is provided near the right mold core a7 of the circular groove a29. One end of the partition block a52 is rectangular and connected to the outer peripheral wall, and the other end is circular and extends into the circular groove a29. The end face of the partition block a52 is lower than the end face of the second boss a51. A composite groove a30 formed by two connecting ear grooves is provided near the left mold core a6 of the circular groove a29. The composite groove a30 is connected to the fourth annular groove a26. Two second circular grooves a31 are also provided on the second boss a51 near the right mold core a7. The two second circular grooves a31 are symmetrically arranged along the diameter of the circular groove a29.

[0024] A casting pipe a60 and a centralized exhaust member a50 are embedded in the lower mold base a2 and the upper mold base a1. The casting pipe a60 and the centralized exhaust member a50 are respectively arranged on both sides of the lower mold base a2. The pipe mouth of the casting pipe a60 is located on the end surface of the upper mold base a1. The casting pipe a60 includes a truncated cone a61 and a sleeve a62 sleeved outside the truncated cone a61. A casting notch a612 is provided on the circumferential side of the truncated cone a61. A mounting plane a611 abutting against the lower mold core is provided on the circumferential side of the truncated cone a61. The discharge end of the casting notch a612 is connected to the mounting plane a611. The casting notch a612 is connected to the lower mold core. Four flow channels connected to the casting pipe a60 are provided in the lower mold core a4. The flow channels include a terminal near the left mold core a6. The first flow channel a61, the second flow channel a62 whose end is close to the first semi-annular groove a16, and the third flow channel a63 and the fourth flow channel a64 whose ends are close to the third annular groove a17, and the centralized exhaust part a50 is connected with three exhaust channels, including the first exhaust channel a51 whose end is close to the left mold core a6, the second exhaust channel a52 and the third exhaust channel a53 whose end is close to the right mold core a7, the third exhaust channel a53 is provided with three branches, and the ends of the three branches of the first exhaust channel a51 and the third exhaust channel a53 are respectively extended to the third annular groove a17, and the first slag bag a54 is provided on the three branches, and the upper mold core a5 is provided with a second slag bag a55 adapted to the first slag bag a54.

[0025] During casting, the demolding mechanism drives the lower die seat to approach the upper die seat, and the oblique column in the core pulling mechanism enters the oblique through hole and presses the slider to move toward the lower die core, thereby driving the left die core and the right die core to enter the lower die core, and the upper die core and the lower die core are merged. When the upper die seat and the lower die seat are closed, the molten metal liquid enters the die-casting cavity of the explosion-proof lamp body from the casting tube until it fills the entire die-casting cavity, and the explosion-proof lamp body is obtained by die-casting. The die-casting mold is used to produce the explosion-proof lamp body, which can achieve one-time die-casting, eliminates multiple repeated steps, and improves production efficiency. When taking out the product, the lower die seat is driven away from the upper die seat by the demolding mechanism, and the oblique column is pulled out from the oblique through hole and presses the slider to prompt the slider to move away from the lower die core. The slider drives the left die core and the right die core to leave the lower die core, and the product can be taken out.

Claims

1. A die-casting mold for producing an explosion-proof lamp body, which comprises, from top to bottom, an upper die base, a lower die base and a demoulding mechanism for driving the lower die base to rise and fall, a lower die core is provided in the middle of the lower die base, and an upper die core corresponding to the lower die core is provided in the middle of the upper die base, characterized in that: The left and right sides of the lower mold core and the upper mold core are simultaneously embedded with a left mold core and a right mold core, and a core pulling mechanism for driving the left and right mold cores to move is provided in the lower mold base, and the upper mold core, the lower mold core, the left mold core and the right mold core are molded together to form an explosion-proof lamp main body die-casting cavity, and the explosion-proof lamp main body die-casting cavity includes a first cavity arranged in the right mold core, the outer peripheral surface of the first cavity is a regular hexagon, and the inner peripheral wall is circular, and the right mold core is also provided with five reinforcing rib grooves distributed on the periphery of the first cavity and a first rectangular groove, the first rectangular groove is arranged in the vertical direction and is connected to the first cavity, the reinforcing rib grooves are evenly distributed on the outer peripheral surface of the first cavity and are connected to the first cavity, the explosion-proof lamp main body die-casting cavity also includes a first annular groove arranged on the left mold core, and the first A plurality of connecting ear grooves are evenly distributed on the outer peripheral wall of an annular groove, and a reinforcing rib groove is provided between the two connecting ear grooves. The left mold core is also provided with a second annular groove and a first groove coaxially arranged with the first annular groove, and the second annular groove and the first groove are both located in the first annular groove. The die-casting cavity of the explosion-proof lamp body also includes a first semi-annular groove arranged in the lower mold core, and two connecting ear grooves are provided on the outer peripheral wall of the first semi-annular groove, and the connecting ear grooves are arranged on both sides of the right mold core, and the connecting ear grooves are connected with the first semi-annular groove, and the center of the connecting ear groove has a through hole, and a third annular groove coaxial with the first semi-annular groove is provided in the lower mold core, and four evenly distributed connecting ear grooves are provided on the outer peripheral wall of the third annular groove, and the connecting ear groove is connected with the third annular groove , the center of the connecting ear groove has a through hole, a second semi-annular groove is provided between the groove wall of the first semi-annular groove and the third annular groove, the second semi-annular groove is respectively connected with the first semi-annular groove and the third annular groove, a second chamber with a bowl-shaped cross section is provided at the cooperation place between the lower mold core and the left mold core, a hemispherical third chamber is provided between the second chamber and the third annular groove, a through hole is provided in the middle of the third chamber, the center of the through hole is in the same straight line as the diameter of the third annular groove, a give way groove connecting the third chamber and the third annular groove is provided between the third chamber and the third annular groove, a first boss located in the third annular groove is provided on the lower mold core, a second rectangular groove, a first circular groove, an annular groove and a through hole are provided on the first boss, and the die-casting cavity of the explosion-proof lamp body also includes a setting A fourth annular groove in the upper mold core, six connecting ear grooves are evenly distributed on the outer circumference of the fourth annular groove, and the connecting ear grooves are connected to the fourth annular groove. A fourth chamber symmetrically arranged with the second chamber is also provided in the upper mold core, and a fifth chamber connecting the fourth chamber and the fourth annular groove is provided between the fourth chamber and the fourth annular groove. A second boss located in the fourth annular groove is provided on the upper mold core, and a circular groove is provided in the second boss. A dividing block is provided near the right mold core of the circular groove, one end of the dividing block is rectangular and connected to the outer peripheral wall, and the other end is circular and extends into the circular groove. The end face of the dividing block is lower than the end face of the second boss, and a composite groove formed by two connecting ear grooves is provided near the left mold core of the circular groove, and the composite groove is connected to the fourth annular groove.Two second circular grooves are also provided on the second boss near the right mold core, and the two second circular grooves are symmetrically arranged along the diameter of the circular groove.

2. The die-casting mold for producing an explosion-proof lamp body according to claim 1, characterized in that: A casting pipe and a centralized exhaust component are embedded in the lower mold base and the upper mold base, and the casting pipe and the centralized exhaust component are respectively arranged on both sides of the lower mold base, and the pipe mouth of the casting pipe is located on the end face of the upper mold base. The lower mold core is provided with four flow channels connected with the casting pipe, and the flow channels include a first flow channel with its end close to the left mold core, a second flow channel with its end close to the first semi-annular groove, and a third flow channel and a fourth flow channel with their ends close to the third annular groove. Three exhaust channels are connected to the centralized exhaust component, including a first exhaust channel with its end close to the left mold core, a second exhaust channel with its end close to the right mold core, and a third exhaust channel. The third exhaust channel is provided with three branches, and the ends thereof extend respectively to the vicinity of the third annular groove. A first slag bag is provided on the three branches of the first exhaust channel and the third exhaust channel, and a second slag bag adapted to the first slag bag is provided in the upper mold core.

3. The die-casting mold for producing an explosion-proof lamp body according to claim 1, characterized in that: The core pulling mechanism includes a slider connected to the left mold core or the right mold core, and a slider bracket fixed in the lower mold base. The slider is provided with a plug-in groove plugged with the left mold core or the right mold core. The slider is slidably connected to the slider bracket and can move closer to or away from the lower mold core along the slider bracket. The slider is provided with at least one inclined through hole, and an inclined column is passed through the inclined through hole. A positioning hole adapted to the inclined column is provided in the upper mold base, and one end of the inclined column passes through the positioning hole in the upper mold base, and the other end extends to the side of the lower mold base.

4. The die-casting mold for producing an explosion-proof lamp body according to claim 2, characterized in that: The casting tube includes a truncated cone and a sleeve sleeved outside the truncated cone. The circumferential side of the truncated cone is provided with a casting notch. The circumferential side of the truncated cone is provided with a mounting plane abutting against the lower mold core. The discharge end of the casting notch is connected to the mounting plane, and the casting notch is connected to the lower mold core.

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