A casting and forming device for door and window hardware accessories

Abstract

A door and window hardware fitting casting and forming device belongs to the field of metal casting technology. In order to solve the problem that the metal liquid flows unevenly during metal casting and a large amount of smoke is generated during casting, which affects the health of workers, the invention comprises a support device and an electric push rod installed on the support device, the output end of the electric push rod is fixedly installed with an upper mold, the side of the support device is fixedly installed with a lower mold, the lower end of the lower mold is fixedly installed with a shell, and the lower end of the shell is fixedly installed with a purified water tank. During casting, the high temperature of the metal liquid itself during casting causes the nitrogen in the nitrogen chamber to expand due to heat, and the expanded nitrogen is introduced between the upper and lower molds to drive the flow of the metal liquid and the generated smoke, and then the mixture is poured into water to absorb the smoke through the water, and the purified nitrogen is introduced into the nitrogen chamber again to realize the recycling of the nitrogen.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, in particular to a casting and forming device for door and window hardware accessories. Background Art

[0002] Hardware: Traditional hardware products, also known as "small hardware". Refers to five metals: gold, silver, copper, iron and tin. After artificial processing, it can be made into works of art or metal devices such as knives and swords. Hardware in modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security products, such as various parts required for the installation of doors and windows. Metal casting is a process of melting metal into a liquid that meets certain requirements and pouring it into a mold. After cooling, solidification and cleaning, a casting with a predetermined shape, size and performance is obtained. The casting blank is almost formed, so it can achieve the purpose of no mechanical processing or a small amount of processing, which reduces costs and reduces time to a certain extent. Casting is one of the basic processes of the modern machinery manufacturing industry.

[0003] For example, a hardware casting mold with announcement number CN117340221B includes: a support assembly, the support assembly includes a bottom plate, a vertical plate and a top plate, the top plate is fixedly mounted on the bottom plate through the vertical plate; a lifting plate, the lifting plate is slidably mounted on the vertical plate through the lifting assembly; a mold assembly, the mold assembly is rotatably mounted on the lifting plate, and the lifting plate is also provided with a second motor for driving the mold assembly to rotate; a knocking assembly, the knocking assembly includes a knocking ring, a moving rod, a knocking plate and a traction block; and a control assembly for pulling the traction block to move on the knocking ring, the control assembly includes a control ring, an adjustment plate, a first guide plate and a second guide plate; the present invention has innovative structure and can improve the casting quality.

[0004] The above patent can improve the quality of castings, but its designed structure contains multiple power sources. Using multiple power sources simultaneously during casting will result in a large consumption of electricity. The large consumption of electricity during production will increase production costs. In addition, when casting, a large amount of smoke and dust will be generated when the metal liquid is poured into the mold. The smoke and dust generated by casting are harmful to the health of workers. There are still many defects in actual use.

[0005] In view of the above problems, a casting and forming device for door and window hardware accessories is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a casting and molding device for door and window hardware accessories. By adopting this device to work, the problem in the above background that a large amount of smoke and dust will be generated when the metal liquid is poured into the mold during casting, and the smoke and dust generated by casting is harmful to the health of workers operating the device, and there are still many defects in actual use.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a door and window hardware accessories casting molding device, comprising a supporting device and an electric push rod installed on the supporting device, an upper mold is fixedly installed on the output end of the electric push rod, a lower mold is fixedly installed on the side of the supporting device, a shell is fixedly installed on the lower end of the lower mold, a purified water tank is fixedly installed on the lower end of the shell, a circulating water tank is fixedly installed on the side of the supporting device, a casting groove 1 and a casting groove 2 are respectively provided on the lower mold and the upper mold, a feed hopper is fixedly installed on the upper end of the upper mold, a connecting pipe is fixedly installed on the lower end of the feed hopper, the connecting pipe communicates with the feed hopper and the casting groove 2, a control valve is fixedly installed on the outer side of the connecting pipe, and the interior of the shell is divided into a nitrogen chamber from top to bottom , a buffer chamber, a bellows is fixedly installed on the side wall of the nitrogen chamber, one end of the bellows is fixedly connected to the connecting pipe, an air guide pipe 1 is fixedly installed on the side of the casting trough 2, a plurality of connecting holes are opened at the upper end of the lower mold, the air guide pipe 1 can be slidably connected in the connecting hole, the lower end of the connecting hole is fixedly connected to the air guide pipe 2, the air guide pipe 2 is communicated with the interior of the buffer chamber, an air guide pipe 3 is fixedly installed on the side wall of the buffer chamber, one end of the air guide pipe 3 extends into the interior of the purified water tank, a one-way valve 1 is fixedly installed on the air guide pipe 3, an air guide pipe 4 is fixedly connected between the purified water tank and the side wall of the nitrogen chamber, a one-way valve 2 is fixedly installed on one end of the air guide pipe 4, and the air guide pipe 4 communicates the purified water tank with the nitrogen chamber.

[0008] Furthermore, a groove is provided at the lower end of the upper mold, and a movable component is installed at the upper end of the lower mold, and the movable component is slidably connected in the groove.

[0009] Furthermore, the movable component includes a fixed frame fixedly installed on the upper end of the lower mold, a slide groove 1 is opened at the upper end of the fixed frame, and only slide groove 2 is opened on both sides of the fixed frame. A movable block 1 is slidably connected in the slide groove 1, and a movable block 2 is slidably connected in the slide groove 2.

[0010] Furthermore, a mounting block is fixedly installed inside the fixed frame, a plurality of high temperature resistant springs 1 are fixedly installed between the upper end of the mounting block and the lower wall of the movable block 1, and a plurality of high temperature resistant springs 2 are fixedly installed between the side wall of the mounting block and the side wall of the movable block 2.

[0011] Furthermore, the side walls on both sides of the lower end of the movable block 1 are inclined surfaces, and the inner upper end side edges of the movable block 2 are inclined surfaces. When the movable block 1 moves, it can contact the movable block 2 and push the movable block 2 outward.

[0012] Furthermore, an expanded perlite sheet is fixedly mounted on the outer side wall of the movable block 2, and the expanded perlite sheet expands rapidly under high temperature and fits with the side wall of the groove.

[0013] Furthermore, a water pumping pipe is fixedly installed between the circulating water tank and the purified water tank, a water pump 1 is fixedly installed at one end of the water pumping pipe, and an output end of the water pumping pipe is fixedly connected to a water pumping end of the water pump 1.

[0014] Furthermore, a water outlet end of the water pump 1 is fixedly connected to a water outlet pipe, a filter chamber is fixedly installed inside the circulating water tank, and one end of the water outlet pipe is connected to the inside of the filter chamber.

[0015] Furthermore, the interior of the filter chamber is filled with filter material, the upper wall of the filter chamber is fixedly connected to the upper inner wall of the circulating water tank, and the lower side wall of the filter chamber is provided with a plurality of liquid outlet holes at equal intervals.

[0016] Furthermore, an L-shaped connecting pipe is fixedly installed between the circulating water tank and the purified water tank, the two ends of the L-shaped connecting pipe are respectively located at the upper end of the purified water tank and the lower end of the circulating water tank, and a water pump 2 is fixedly installed on the L-shaped connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can heat and expand the nitrogen in the nitrogen chamber by the high temperature of the metal liquid itself during casting, and introduce the expanded nitrogen into the space between the upper and lower molds to drive the flow of the metal liquid and the generated smoke, and then pour them into the water to absorb the smoke through the water, and the purified nitrogen is introduced into the nitrogen chamber again to realize the recycling of the nitrogen; through the cooperation between the groove and the movable block one and the movable block two, when the upper and lower molds are fitted together, the movable block one can push the movable blocks two on both sides outwards under the extrusion of the groove The expanded perlite sheet on the side wall of the movable block 2 can expand under the high temperature of the metal liquid, and fit better with the side wall of the groove, and the sealing is further enhanced; after long-term use, the solubility of water in the purified water tank in the flue gas will be significantly reduced, and the sewage will be sucked into the filter chamber for purification through the cooperation between the water pump 1 and the filter chamber. The purified water flows out into the circulating water tank and is then discharged into the purified water tank through the water pump 2, so as to realize the recycling of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2It is a schematic diagram of the overall longitudinal cross-sectional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall transverse cross-sectional structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the upper and lower mold systems of the present invention;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the upper and lower mold systems of the present invention;

[0025] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0026] Figure 8 It is a schematic diagram of the structure of the filter chamber system of the present invention;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the filter chamber system of the present invention;

[0028] Fig.10 It is a schematic diagram of the cross-sectional structure of the circulating water tank system of the present invention.

[0029] In the figure: 1, support device; 2, electric push rod; 3, upper mold; 31, feed hopper; 32, connecting pipe; 33, control valve; 34, casting trough 2; 35, air guide pipe 1; 36, groove; 4, lower mold; 41, casting trough 1; 42, movable assembly; 421, fixed frame; 422, chute 1; 423, chute 2; 424, movable block 1; 425, movable block 2; 426, mounting block; 427, expanded perlite sheet; 428, high temperature resistant elastic Spring one; 429, high temperature resistant spring two; 43, connecting hole; 44, air guide pipe two; 5, shell; 51, nitrogen chamber; 52, buffer chamber; 53, bellows; 6, purified water tank; 61, air guide pipe three; 62, one-way valve one; 63, air guide pipe four; 64, one-way valve two; 7, circulating water tank; 71, water suction pipe; 72, water pump one; 73, water outlet pipe; 74, filter chamber; 75, filter material; 76, liquid outlet hole; 77, L-shaped connecting pipe; 78, water pump two. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to solve the technical problems of uneven metal liquid flow during natural casting and the generation of more smoke and dust during casting, which affects the health of workers, such as Figure 1 - Figure 4 As shown, the following preferred technical scheme is provided: comprising a supporting device 1 and an electric push rod 2 installed on the supporting device 1, an upper mold 3 is fixedly installed at the output end of the electric push rod 2, a lower mold 4 is fixedly installed on the side of the supporting device 1, a shell 5 is fixedly installed at the lower end of the lower mold 4, a purified water tank 6 is fixedly installed at the lower end of the shell 5, a circulating water tank 7 is fixedly installed on the side of the supporting device 1, a casting trough 1 41 and a casting trough 2 34 are respectively provided on the lower mold 4 and the upper mold 3, a feed hopper 31 is fixedly installed at the upper end of the upper mold 3, a connecting pipe 32 is fixedly installed at the lower end of the feed hopper 31, the connecting pipe 32 connects the feed hopper 31 and the casting trough 2 34, a control valve 33 is fixedly installed on the outer side of the connecting pipe 32, and the interior of the shell 5 is divided into a nitrogen chamber 51 and a buffer chamber 52 from top to bottom, and the nitrogen chamber 51 is A bellows 53 is fixedly installed on the side wall, one end of the bellows 53 is fixedly connected to the connecting pipe 32, an air guide pipe 1 35 is fixedly installed on the side of the casting trough 2 34, a plurality of connecting holes 43 are opened at the upper end of the lower mold 4, the air guide pipe 1 35 can be slidably connected in the connecting hole 43, the lower end of the connecting hole 43 is fixedly connected to the air guide pipe 2 44, the air guide pipe 2 44 is connected with the interior of the buffer chamber 52, an air guide pipe 3 61 is fixedly installed on the side wall of the buffer chamber 52, one end of the air guide pipe 3 61 extends into the interior of the purified water tank 6, a one-way valve 1 62 is fixedly installed on the air guide pipe 3 61, an air guide pipe 4 63 is fixedly connected between the side walls of the purified water tank 6 and the nitrogen chamber 51, a one-way valve 2 64 is fixedly installed on one end of the air guide pipe 4 63, and the air guide pipe 4 63 connects the purified water tank 6 and the nitrogen chamber 51.

[0032] Specifically, the electric push rod 2 provides power for the upper mold 3, so that the two molds are fitted together. The upper mold 3 and the lower mold 4 are respectively provided with corresponding casting grooves 1 41 and 2 34. When casting hardware accessories, the upper and lower molds are fitted together, and the casting grooves 1 41 and 2 34 are also fitted together. At this time, the metal liquid can be injected into the mold through the feed hopper 31, and the metal liquid enters between the casting grooves of the upper and lower molds to form. The high temperature brought by the metal liquid can make the nitrogen chamber 51 below the lower mold 4 The nitrogen in the mold expands rapidly due to the heat. When the metal liquid is cast, the control valve 33 cuts off the connection between the feed hopper 31 and the second casting trough 34. At this time, the bellows 53 on the side of the connecting pipe 32 is connected to the second casting trough 34. The nitrogen that expands due to the heat flows along the bellows 53 and the connecting pipe 32 into the second casting trough 34. The expanded nitrogen flows along the casting trough 1 41 and the second casting trough 34. When it flows to the boundary of each casting trough, it can flow out from the air guide pipe 1 35 on the side of the second casting trough 34 to keep the upper and lower molds The flow of air makes the metal castings more uniform. The flowing nitrogen drives the smoke generated during casting to flow into the air guide pipe 2 44 along the air guide pipe 1 35, and then enter the interior of the buffer chamber 52. Then, they flow from the buffer chamber 52 along the air guide pipe 3 61 into the purified water tank 6 and pass into the water. The smoke is purified and absorbed by the water. At this time, the nitrogen flows upward after being purified in the water and stays at the upper end of the purified water tank 6. The purified nitrogen is then introduced into the nitrogen chamber 5 again through the air guide pipe 4 63 on the side. 1 realizes the recycling of nitrogen. When casting, the door and window hardware accessories casting molding device uses the high temperature brought by the metal liquid to make the nitrogen in the nitrogen chamber 51 expand due to heat, and allows the nitrogen to be introduced between the upper and lower molds to drive the flow of the metal liquid, so that the casting molding effect is better, and the flue gas generated during the casting is driven by the flowing nitrogen to flow into the purified water tank 6 below, so that the flue gas is adsorbed and the nitrogen is purified. The purified nitrogen is introduced into the nitrogen chamber 51 again, so as to realize the recycling of nitrogen.

[0033] In order to solve the technical problem that nitrogen may flow out from the gap between the upper and lower molds when flowing, causing harm to the health of workers, such as Figure 5 - Figure 7 As shown, the following preferred technical solution is provided: a groove 36 is provided at the lower end of the upper mold 3, and a movable component 42 is installed at the upper end of the lower mold 4. The movable component 42 is slidably connected in the groove 36. The movable component 42 will produce a small movement when the upper and lower molds are fitted together, and the cooperation with the groove 36 can prevent the nitrogen from flowing out when flowing between the upper and lower molds.

[0034] The movable component 42 includes a fixed frame 421 fixedly installed on the upper end of the lower mold 4, a slide groove 422 is opened on the upper end of the fixed frame 421, and only slide grooves 423 are opened on both sides of the fixed frame 421. A movable block 424 is slidably connected in the slide groove 422, and a movable block 425 is slidably connected in the slide groove 423. With the cooperation between the lower mold 4, the fixed frame 421, the slide groove 422, the slide groove 423, the movable block 424 and the movable block 425, a plurality of movable parts are installed inside the fixed frame 421.

[0035] A mounting block 426 is fixedly installed inside the fixed frame 421, and a plurality of high temperature resistant springs 1 428 are fixedly installed between the upper end of the mounting block 426 and the lower wall of the movable block 1 424, and a plurality of high temperature resistant springs 2 429 are fixedly installed between the side wall of the mounting block 426 and the side wall of the movable block 2 425. With the cooperation among the fixed frame 421, the mounting block 426, the movable block 1 424, the high temperature resistant springs 1 428, the movable block 2 425 and the high temperature resistant springs 2 429, in the initial state, the movable block 1 424 is not in contact with the movable block 2 425 under the push of the high temperature resistant springs 1 428, so that the movable block 2 425 on the side can be contracted in the fixed frame 421.

[0036] The side walls on both sides of the lower end of the movable block 1 424 are inclined surfaces, and the inner upper end sides of the movable block 2 425 are inclined surfaces. When the movable block 1 424 moves, it can contact the movable block 2 425 and push the movable block 2 425 outward. When the movable block 1 424 contacts the movable block 2 425, due to the setting of the inclined surface, the movable block 1 424 can push the movable block 2 425 outward.

[0037] An expanded perlite sheet 427 is fixedly installed on the outer side wall of the movable block 425. The expanded perlite sheet 427 expands rapidly under high temperature and fits with the side wall of the groove 36. With the cooperation between the movable block 425, the expanded perlite sheet 427 and the groove 36, the expanded perlite sheet 427 can fit more closely with the groove 36 under the action of high temperature, further preventing leakage of nitrogen.

[0038] Specifically, when the upper mold 3 is brought close to the lower mold 4 by the electric push rod 2, the fixed frame 421 at the upper end of the lower mold 4 slides along the groove 36 and fits together. In the process of the two getting close, the inner wall of the groove 36 contacts and squeezes the movable block 1 424. The movable block 1 424 is squeezed by the inner wall of the groove 36 and slides into the interior of the fixed frame 421 along the slide groove 1 422. When the movable block 1 424 moves, its side walls contact the movable block 2 425 on the side, and the movable block 2 425 on both sides is pushed outward under the action of the inclined surface. Since the metal liquid itself has a very high temperature during casting, the temperature of the upper and lower molds also rises rapidly under the influence of high temperature. The high temperature causes the expanded perlite sheet 427 that fits the side wall of the groove 36 to expand due to the heat. At this time, under the action of high temperature, the movable block 2 425 and the groove 36 fit more tightly and have better sealing.

[0039] In order to solve the technical problem that the purification efficiency of water in the purified water tank decreases after long-term use, such as Figure 8 - Fig.10 As shown, the following preferred technical solution is provided: a pumping pipe 71 is fixedly installed between the circulating water tank 7 and the purified water tank 6, a water pump 72 is fixedly installed at one end of the pumping pipe 71, and the output end of the pumping pipe 71 is fixedly connected to the pumping end of the water pump 72, so that the sewage containing impurities in the purified water tank 6 can be sucked out by the water pump 72.

[0040] The water outlet end of the water pump 72 is fixedly connected to an outlet pipe 73, and a filter chamber 74 is fixedly installed inside the circulating water tank 7. One end of the outlet pipe 73 is connected to the inside of the filter chamber 74. The sewage sucked out by the water pump 72 can be filtered and purified through the filter chamber 74.

[0041] The interior of the filter chamber 74 is filled with filter material 75, the upper wall of the filter chamber 74 is fixedly connected to the upper inner wall of the circulating water tank 7, and a plurality of liquid outlet holes 76 are equidistantly provided on the lower side wall of the filter chamber 74. The filter chamber 74 is a closed chamber, and only the lower end has a liquid outlet 76 for the purified water to flow out.

[0042] An L-shaped connecting pipe 77 is fixedly installed between the circulating water tank 7 and the purified water tank 6. The two ends of the L-shaped connecting pipe 77 are respectively located at the upper end of the purified water tank 6 and the lower end of the circulating water tank 7. A water pump 2 78 is fixedly installed on the L-shaped connecting pipe 77. The purified water flows into the interior of the circulating water tank 7 and is then re-introduced into the purified water tank 6 through the water pump 2 78, thereby realizing the recycling of water.

[0043] Specifically, after the flowing nitrogen passes the flue gas generated by casting into the purified water tank 6, the impurities in the flue gas remain in the water after being purified by water. After long-term use, the water pump 1 72 can be started to suck the sewage in the purified water tank 6 into the filter chamber 74. After being filtered by the filter material 75 in the filter chamber 74, it flows out from the liquid outlet 76 at the lower end to the inside of the circulating water tank 7. At this time, the water pump 2 78 can be started, and the water pump 2 78 passes the purified water in the circulating water tank 7 into the purified water tank 6 through the L-shaped connecting pipe 77 to change the water, thereby realizing the recycling of water.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting molding device for door and window hardware accessories, comprising a support device (1) and an electric push rod (2) mounted on the support device (1), an upper mold (3) being fixedly mounted on the output end of the electric push rod (2), a lower mold (4) being fixedly mounted on the side of the support device (1), a shell (5) being fixedly mounted on the lower end of the lower mold (4), a purified water tank (6) being fixedly mounted on the lower end of the shell (5), and a circulating water tank (7) being fixedly mounted on the side of the support device (1), characterized in that: The lower mold (4) and the upper mold (3) are respectively provided with a first casting groove (41) and a second casting groove (34); a feed hopper (31) is fixedly mounted on the upper end of the upper mold (3); a connecting pipe (32) is fixedly mounted on the lower end of the feed hopper (31); the connecting pipe (32) is connected to the feed hopper (31) and the second casting groove (34); a control valve (33) is fixedly mounted on the outer side of the connecting pipe (32); the interior of the housing (5) is divided into a nitrogen chamber (51) and a buffer chamber (52) from top to bottom; a bellows (53) is fixedly mounted on the side wall of the nitrogen chamber (51); one end of the bellows (53) is fixedly connected to the connecting pipe (32); an air guide pipe (35) is fixedly mounted on the side of the second casting groove (34); the upper end of the lower mold (4) is provided with a first casting groove (41); and a second casting groove (34) is fixedly mounted on the side wall of the nitrogen chamber (51). A plurality of connection holes (43) are provided, the air guide tube 1 (35) can be slidably connected in the connection holes (43), the lower end of the connection hole (43) is fixedly connected to the air guide tube 2 (44), the air guide tube 2 (44) is communicated with the interior of the buffer chamber (52), the side wall of the buffer chamber (52) is fixedly mounted with an air guide tube 3 (61), one end of the air guide tube 3 (61) extends into the interior of the purified water tank (6), a one-way valve 1 (62) is fixedly mounted on the air guide tube 3 (61), the side wall of the purified water tank (6) and the nitrogen chamber (51) are commonly fixedly connected with an air guide tube 4 (63), one end of the air guide tube 4 (63) is fixedly mounted with a one-way valve 2 (64), the air guide tube 4 (63) communicates with the purified water tank (6) and the nitrogen chamber (51).

2. A door and window hardware fitting casting and molding device according to claim 1, characterized in that: A groove (36) is provided at the lower end of the upper mold (3), and a movable component (42) is installed at the upper end of the lower mold (4), wherein the movable component (42) is slidably connected in the groove (36).

3. A door and window hardware fitting casting and molding device according to claim 2, characterized in that: The movable assembly (42) comprises a fixed frame (421) fixedly mounted on the upper end of the lower mold (4); a first slide groove (422) is provided at the upper end of the fixed frame (421); two sides of the fixed frame (421) are only provided with second slide grooves (423); a first movable block (424) is slidably connected in the first slide groove (422); and a second movable block (425) is slidably connected in the second slide groove (423).

4. A door and window hardware fitting casting device according to claim 3, characterized in that: A mounting block (426) is fixedly installed inside the fixed frame (421), a plurality of high temperature resistant springs (428) are fixedly installed between the upper end of the mounting block (426) and the lower wall of the movable block (424), and a plurality of high temperature resistant springs (429) are fixedly installed between the side wall of the mounting block (426) and the side wall of the movable block (425).

5. A door and window hardware fitting casting and molding device according to claim 4, characterized in that: The side walls on both sides of the lower end of the movable block 1 (424) are inclined surfaces, and the inner upper end side walls of the movable block 2 (425) are inclined surfaces. When the movable block 1 (424) moves, it can contact the movable block 2 (425) and push the movable block 2 (425) outward.

6. A door and window hardware fitting casting and molding device according to claim 5, characterized in that: An expanded perlite sheet (427) is fixedly mounted on the outer side wall of the movable block 2 (425). The expanded perlite sheet (427) expands rapidly when subjected to high temperature and fits the side wall of the groove (36).

7. The door and window hardware accessories casting and molding device according to claim 1, characterized in that: A water pumping pipe (71) is fixedly installed between the circulating water tank (7) and the purified water tank (6), a water pump (72) is fixedly installed at one end of the water pumping pipe (71), and the output end of the water pumping pipe (71) is fixedly connected to the water pumping end of the water pump (72).

8. A door and window hardware fitting casting and molding device according to claim 7, characterized in that: The water outlet end of the water pump 1 (72) is fixedly connected to a water outlet pipe (73), a filter chamber (74) is fixedly installed inside the circulating water tank (7), and one end of the water outlet pipe (73) is connected to the inside of the filter chamber (74).

9. A door and window hardware fitting casting device according to claim 8, characterized in that: The interior of the filter chamber (74) is filled with filter material (75), the upper wall of the filter chamber (74) is fixedly connected to the upper inner wall of the circulating water tank (7), and the lower side wall of the filter chamber (74) is provided with a plurality of liquid outlet holes (76) at equal intervals.

10. A door and window hardware fitting casting device according to claim 9, characterized in that: An L-shaped connecting pipe (77) is fixedly installed between the circulating water tank (7) and the purified water tank (6), with two ends of the L-shaped connecting pipe (77) respectively located at the upper end of the purified water tank (6) and the lower end of the circulating water tank (7), and a second water pump (78) is fixedly installed on the L-shaped connecting pipe (77).

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