Die for steel precision casting

Abstract

The utility model relates to a die for steel precision casting, which comprises a base, a bottom die and a top die, and a die stripping mechanism is arranged between the base and the bottom die. The mold stripping mechanism comprises a hand wheel, a worm, a worm wheel, a supporting rod, a circular rotating disc, a connecting rod and a sliding block, the hand wheel is movably installed on the front side of the base, the worm extending into the base is fixedly installed on the rear side wall of the hand wheel, the worm wheel is meshed with the outer surface of the worm, the supporting rod is fixedly installed in the worm wheel, and the circular rotating disc is fixedly installed on the supporting rod. And a circular rotating disc is fixedly installed at one end of the supporting rod, connecting rods are movably installed at the two ends of the top of the circular rotating disc correspondingly, and sliding blocks are movably installed at one ends of the two connecting rods correspondingly. According to the mold for steel precision casting, by arranging the mold stripping mechanism, the first mold and the second mold can move in the direction away from each other, the bottom mold is divided into two parts, and after the bottom mold is separated, a steel injection casting is exposed outside and is separated from the interior of the bottom mold.

Description

Technical Field

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

[0002] Steel castings are objects with certain shapes, sizes and properties obtained by pouring, injection, suction or other casting methods into a pre-prepared mold, cooling and then subjecting to temperature.

[0003] After searching, for example, Chinese patent number CN219648664U discloses a steel casting mold that is easy to demold. The utility model includes a mold body, and the bottom of the mold body is fixedly connected with a fixing groove. A cavity is opened in the middle of the left side of the fixing groove. The interior of the cavity is fixedly connected with a steering gear, and the driving end of the steering gear is fixedly connected with a bidirectional screw. The end of the bidirectional screw away from the steering gear is rotatably connected to the interior of the fixing groove. Both sides of the outer wall of the bidirectional screw are threadedly connected with movable blocks, and the interior of the fixing groove is located above the bidirectional screw and is fixedly connected with a cross bar. In the utility model, when the movable blocks on both sides move relative to each other, the slider is driven to slide upward, thereby driving the ejection plate to move upward.

[0004] The demolding method of the above utility model is to push the injection molded part upward from the mold part. However, during the upward movement of the steel casting, a large friction force will be generated between the steel casting and the inner wall of the mold, which may cause deformation or wear of the steel casting and cannot meet the use requirements. Therefore, a mold for steel precision casting is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a mold for precision casting of steel which is easy to demould.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for steel precision casting, comprising a base, a bottom mold and a top mold, wherein a demoulding mechanism is arranged between the base and the bottom mold;

[0007] The demoulding mechanism includes a handwheel, a worm, a turbine, a support rod, a circular turntable, a connecting rod and a slider. The handwheel is movably mounted on the front side of the base, a worm extending to the inside of the base is fixedly mounted on the rear side wall of the handwheel, a turbine is meshed on the outer surface of the worm, a support rod is fixedly mounted inside the turbine, a circular turntable is fixedly mounted on one end of the support rod, connecting rods are movably mounted on both ends of the top of the circular turntable, and sliders are movably mounted on one end of the two connecting rods.

[0008] Furthermore, a bottom plate is fixedly installed at the bottom of the base, electric telescopic rods are fixedly installed at both ends of the top of the bottom plate, and a top plate located at the top of the top mold is fixedly installed between the tops of the two electric telescopic rods.

[0009] Furthermore, the bottom mold includes mold one and mold two, a card plate is fixedly installed at one end of the bottom of mold one, a card block is fixedly installed at one end of the bottom of mold two, and a card slot matching the card plate is opened inside the card block.

[0010] Furthermore, the worm gear is rotatably mounted on the inside of the base, the support rod is rotatably mounted on the inner bottom wall of the base, both ends of the top of the circular turntable are fixedly mounted with convex rods located inside the connecting rod, and the two connecting rods are rotatably mounted on the convex rods.

[0011] Furthermore, a fixing rod is fixedly installed between the left and right inner walls of the base, the two sliders are slidably installed with the fixing rod, the tops of the two sliders are fixedly installed with vertical rods, and the top of the base is provided with openings located on the outer surfaces of the two vertical rods.

[0012] Furthermore, a sealing plug is fixedly installed on the right side wall of the mold two, a sealing slot matched with the sealing plug is opened on the left side wall of the mold one, and the two vertical rods are fixedly connected to the bottom of the mold one and the mold two.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The mold for precision steel casting can move mold one and mold two away from each other by setting a demoulding mechanism, so as to divide the bottom mold into two. After the bottom mold is separated, the steel casting is exposed to the outside and separated from the inside of the bottom mold. Compared with the supporting film method of ejecting the steel casting from the inside of the bottom mold, this demoulding method not only increases the demoulding speed of the steel casting and improves the processing efficiency, but also can effectively reduce the friction between the steel casting and the bottom mold and reduce the wear.

[0015] 2. The steel precision casting mold is provided with a clamping plate and a clamping block, a sealing plug block and a sealing slot, so that when mold one and mold two are combined together, the connection between mold one and mold two can be reinforced, so that the top mold can avoid cracking at the connection between mold one and mold two when extruding downward, thereby increasing the stability of mold one and mold two after being connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the base and bottom mold of the utility model;

[0018] Figure 3 It is a top view of part of the structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 A magnified view of the structure in the middle.

[0020] In the figure: 1. base; 2. bottom mold; 201. mold one; 202. mold two; 3. top mold; 4. demoulding mechanism; 401. hand wheel; 402. worm; 403. turbine; 404. support rod; 405. circular turntable; 406. connecting rod; 407. slider; 5. clamping plate; 6. clamping block. DETAILED DESCRIPTION

[0021] 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 described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] See also Figure 1-4 A steel precision casting mold in this embodiment includes a base 1, a bottom mold 2 and a top mold 3, and a demolding mechanism 4 is arranged between the base 1 and the bottom mold 2.

[0023] A bottom plate is fixedly installed at the bottom of the base 1, and electric telescopic rods are fixedly installed at both ends of the top of the bottom plate. A top plate located on the top of the top mold 3 is fixedly installed between the tops of the two electric telescopic rods. The top mold 3 is driven downward by the two electric telescopic rods to squeeze the bottom mold 2.

[0024] The bottom mold 2 includes a mold 1 201 and a mold 2 202. A clamping plate 5 is fixedly installed on one end of the bottom of the mold 1 201, a clamping block 6 is fixedly installed on one end of the bottom of the mold 2 202, and a clamping groove matched with the clamping plate 5 is provided inside the clamping block 6. A sealing plug is fixedly installed on the right side wall of the mold 2 202, and a sealing slot matched with the sealing plug is provided on the left side wall of the mold 1 201. Two vertical rods are fixedly connected to the bottom of the mold 1 201 and the mold 2 202. With the cooperation of the clamping block 6, the clamping plate 5, the sealing plug and the sealing slot, the stability and firmness of the connection between the mold 1 201 and the mold 2 202 are improved, and cracking of the connection between the mold 1 201 and the mold 2 202 during extrusion is avoided.

[0025] The demoulding mechanism 4 includes a handwheel 401, a worm 402, a turbine 403, a support rod 404, a circular turntable 405, a connecting rod 406 and a slider 407. The handwheel 401 is movably installed on the front side of the base 1, and a worm 402 extending to the inside of the base 1 is fixedly installed on the rear side wall of the handwheel 401. The outer surface of the worm 402 is meshed with the turbine 403. The support rod 404 is fixedly installed inside the turbine 403, and a circular turntable 405 is fixedly installed on one end of the support rod 404. Connecting rods 406 are movably installed at both ends of the top of the circular turntable 405, and sliders 407 are movably installed on one end of the two connecting rods 406.

[0026] A fixing rod is fixedly installed between the left and right inner walls of the base 1, and two sliders 407 are slidably installed with the fixing rod. Vertical rods are fixedly installed on the tops of the two sliders 407. The top of the base 1 is provided with openings located on the outer surfaces of the two vertical rods. The two sliders 407 are driven to move oppositely on the fixing rod by the rotation of the circular turntable 405, thereby driving the mold 1 201 and the mold 2 202 to separate, which is convenient for demolding.

[0027] When implementing, follow these steps:

[0028] 1) During demoulding, the hand wheel 401 is rotated to drive the worm 402 to rotate, the worm 402 drives the turbine 403 to rotate, the turbine 403 drives the support rod 404 to rotate, and the support rod 404 drives the circular turntable 405 to rotate;

[0029] 2) Then, since one end of the two connecting rods 406 is rotatably mounted on the protruding rod and the other end is rotatably mounted on the slider 407, and since the two sliders 407 are slidably mounted on the fixed rod, the rotation of the two connecting rods 406 drives the sliders 407 to slide on the fixed rod in a direction away from each other;

[0030] 3) The two vertical rods drive the mold 1 201 and the mold 2 202 to move away from each other, at which time the card plate 5 exits the interior of the card block 6, and the sealing insert exits the interior of the sealing slot;

[0031] 4) Finally, the steel casting is separated from the bottom mold 2 and taken out.

[0032] In summary, the mold for precision steel casting can move mold 1 201 and mold 2 202 away from each other by setting a demoulding mechanism 4, thereby dividing the bottom mold 2 into two. After the bottom mold 2 is separated, the injected steel casting is exposed to the outside and detached from the inside of the bottom mold 2. Compared with the film-supporting method of ejecting the steel casting from the inside of the bottom mold 2, this demoulding method not only increases the demoulding speed of the steel casting and improves the processing efficiency, but also can effectively reduce the friction between the steel casting and the bottom mold 2 and reduce wear.

[0033] Furthermore, by providing the card plate 5 and the card block 6, the sealing plug block and the sealing slot, when the mold 1 201 and the mold 2 202 are combined together, the connection between the mold 1 201 and the mold 2 202 can be reinforced, so that the top mold 3 can avoid cracking at the connection between the mold 1 201 and the mold 2 202 when being squeezed downward, thereby increasing the stability of the mold 1 201 and the mold 2 202 after being connected.

[0034] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the 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 mold for steel precision casting, comprising a base (1), a bottom mold (2) and a top mold (3), characterized in that: A demoulding mechanism (4) is provided between the base (1) and the bottom mold (2); The demoulding mechanism (4) comprises a hand wheel (401), a worm (402), a turbine (403), a support rod (404), a circular turntable (405), a connecting rod (406) and a slider (407); the hand wheel (401) is movably mounted on the front side of the base (1); a worm (402) extending into the interior of the base (1) is fixedly mounted on the rear side wall of the hand wheel (401); the outer surface of the worm (402) is meshed with a turbine (403); a support rod (404) is fixedly mounted inside the turbine (403); a circular turntable (405) is fixedly mounted on one end of the support rod (404); connecting rods (406) are movably mounted on both ends of the top of the circular turntable (405); and sliders (407) are movably mounted on one end of the two connecting rods (406).

2. A steel precision casting mold according to claim 1, characterized in that: A bottom plate is fixedly mounted at the bottom of the base (1), electric telescopic rods are fixedly mounted at both ends of the top of the bottom plate, and a top plate located at the top of the top mold (3) is fixedly mounted between the tops of the two electric telescopic rods.

3. A steel precision casting mold according to claim 1, characterized in that: The bottom mold (2) comprises a mold 1 (201) and a mold 2 (202); a clamping plate (5) is fixedly mounted on one end of the bottom of the mold 1 (201); a clamping block (6) is fixedly mounted on one end of the bottom of the mold 2 (202); and a clamping groove matching the clamping plate (5) is provided inside the clamping block (6).

4. A steel precision casting mold according to claim 1, characterized in that: The worm (402) is rotatably mounted on the inside of the base (1), the support rod (404) is rotatably mounted on the inner bottom wall of the base (1), and both ends of the top of the circular turntable (405) are fixedly mounted with convex rods located inside the connecting rod (406), and the two connecting rods (406) are rotatably mounted on the convex rods.

5. A steel precision casting mold according to claim 3, characterized in that: A fixing rod is fixedly installed between the left and right inner walls of the base (1), the two sliders (407) are slidably installed with the fixing rod, the tops of the two sliders (407) are fixedly installed with vertical rods, and the top of the base (1) is provided with openings located on the outer surfaces of the two vertical rods.

6. A steel precision casting mold according to claim 5, characterized in that: A sealing plug is fixedly mounted on the right side wall of the second mold (202), a sealing slot matched with the sealing plug is provided on the left side wall of the first mold (201), and the two vertical rods are fixedly connected to the bottom of the first mold (201) and the second mold (202).

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