A casting mold for injection molding

Abstract

The present invention discloses a casting mold for injection, which structure includes an upper mold base, a lower mold base, an injection pipe, and a fixing mechanism. The upper mold base and the lower mold base are connected together and fixed together by the fixing mechanism. When separation is required, only the fixing mechanism needs to be released, and the upper mold base will automatically pop up and be separated from the lower mold base. The use is convenient and time-saving, and the work efficiency is greatly improved. When liquid metal is injected into the mold through the injection pipe, it will first be stirred inside the debubble mechanism, so that the bubbles in the liquid metal rise and are discharged from the injection pipe, thereby avoiding bubbles generated due to the different temperature differences between the inside and the outside, which leads to reduced quality of the molded parts.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to a casting mold for injection. Background Art

[0002] A casting mold is a molding mold for manufacturing machine part blanks. During the casting process, the metal is melted into a fluid liquid alloy, and then the liquid alloy is poured into the molding cavity inside the mold. The liquid alloy fills the cavity under the action of gravity, and the part blank is obtained after cooling. Current technical considerations are not comprehensive and have the following disadvantages: the metal is melted into liquid metal, and bubbles are easily generated inside the liquid due to the different temperature differences inside and outside during the injection process, resulting in reduced quality of the molded parts; after casting is completed, the upper mold base and the lower mold base need to be separated manually, which is labor-intensive and time-consuming, greatly reducing work efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention is achieved through the following technical solutions: a casting mold for injection, whose structure includes an upper mold base, a lower mold base, an injection tube, and a fixing mechanism, wherein a lower mold base is provided on the bottom end surface of the upper mold base, the upper mold base and the lower mold base are movably fitted together, an injection tube is provided at the middle position of the top end surface of the upper mold base, the upper mold base and the injection tube cooperate with each other, a fixing mechanism is provided on the left end surface of the upper mold base, the upper mold base and the fixing mechanism are connected by a hinge, and the lower mold base and the fixing mechanism cooperate with each other.

[0004] As a further optimization of the technical solution, the upper mold base consists of a first body, a slot, and a circular plate. Slots are provided on both sides of the top of the first body, and a circular plate is provided on the inner wall of the slot. The first body and the circular plate are fixedly connected.

[0005] As a further optimization of the present technical solution, the lower mold base is composed of a second body, a groove, a vertical rod, a first support plate, a No. 1 spring, a protruding block, and a demolding mechanism. The second body is provided with grooves at both ends of the left and right ends. Two vertical rods are provided on the top surface of the second body. The second body and the vertical rod are movably connected. A first support plate is provided on the surface of the vertical rod. The vertical rod and the first support plate are an integrated structure. A protruding block is provided on the bottom surface of the vertical rod. The vertical rod and the protruding block are connected. The first support plate is located directly above the protruding block. A No. 1 spring is provided on the top surface of the first support plate. The first support plate and the No. 1 spring are movably connected. A demolding mechanism is provided inside the second body. The second body and the demolding mechanism cooperate.

[0006] As a further optimization of the present technical solution, the demolding mechanism is composed of a support rod, a second support plate, a No. 2 spring, a pressing plate, and an impact block. Two support rods are provided on the surface of the pressing plate. The support rod and the pressing plate are slidably matched. A second support plate is provided on the bottom end surface of the support rod. The support rod and the second support plate are an integrated structure. The pressing plate and the second support plate are movably connected by the No. 2 spring. An impact block is provided in the middle position of the top surface of the pressing plate. The pressing plate and the impact block are welded and connected.

[0007] As a further optimization of the present technical solution, the injection tube is composed of an end cover, a tube body, and a debubble mechanism. The end cover is provided on the top surface of the tube body. The tube body and the end cover are connected by a hinge. The debubble mechanism is provided inside the tube body. The tube body and the debubble mechanism cooperate with each other.

[0008] As a further optimization of the technical solution, the defoaming mechanism is composed of an outer shell, a guide ring, a liquid inlet, a rotating shaft, a baffle, a stirring rod, a liquid outlet, and an air pipe. A guide ring is provided on the surface of the outer shell, and the outer shell and the guide ring are connected. Liquid inlets are provided at both front and rear ends of the outer shell. A rotating shaft is provided on the upper part of the inner part of the outer shell, and the outer shell and the rotating shaft are movably connected. Four baffles are installed on the surface of one end of the rotating shaft, and more than two stirring rods are provided on the surface of the other end of the rotating shaft. The rotating shaft and the stirring rods are movably connected. More than two liquid outlets are provided on the bottom surface of the outer shell, and air pipes are provided on both left and right ends of the outer shell, and the outer shell and the air pipe are connected.

[0009] As a further optimization of the present technical solution, the fixing mechanism is composed of a main body, a cross bar, a No. 3 spring, an L-shaped rod, a locking block, a rotating handle, and a No. 4 spring. A cross bar is provided inside the main body, a No. 3 spring is provided at one end of the cross bar, the main body and the cross bar are slidingly matched through the No. 3 spring, an L-shaped rod is provided on the bottom end surface of the cross bar, the cross bar and the L-shaped rod are movably fitted, the rotating handle passes through the bottom end of the L-shaped rod, the L-shaped rod and the rotating handle are slidingly matched, a locking block is provided at one end of the rotating handle, the rotating handle and the locking block are an integrated structure, a No. 4 spring is provided on the bottom end surface of the L-shaped rod, and the main body and the L-shaped rod are slidingly matched through the No. 4 spring.

[0010] As a further optimization of the technical solution, the first body and the vertical rod are slidably matched, and the first support plate and the circular plate are movably connected via a No. 1 spring.

[0011] As a further optimization of the technical solution, the pressing plate and the impact block are both slidably matched with the second body, and the support rod is movably connected to the second body.

[0012] As a further optimization of the technical solution, the tube body cooperates with the first body, the guide ring is connected to the tube body, the air pipe is matched with the tube body, and the liquid inlet and the liquid outlet are connected through the shell.

[0013] As a further optimization of the technical solution, the main body and the first body are connected via a hinge, and the locking block and the groove cooperate with each other.

[0014] As a further optimization of the technical solution, the impact block is made of soft metal material to avoid damage to the mold during demoulding.

[0015] Beneficial Effects

[0016] Compared with the prior art, the beneficial effects of the present invention are: the upper mold base and the lower mold base are connected together, and the two are fixed together by a fixing mechanism. When separation is required, only the fixing mechanism needs to be released, and the upper mold base will automatically pop up and separate from the lower mold base. It is convenient and time-saving to use, and greatly improves work efficiency. When the liquid metal is injected into the mold through the injection pipe, it will first be stirred inside the debubble mechanism, so that the bubbles inside the liquid metal rise and are discharged from the injection pipe, avoiding bubbles generated by the different temperature differences between the inside and the outside, which leads to reduced quality of the molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 The present invention is a schematic structural diagram of a casting mold for injecting material.

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of a casting mold for injection of material according to the present invention.

[0020] Figure 3 It is a schematic diagram of the front cross-sectional structure of the upper die base of the present invention.

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the lower die base of the present invention.

[0022] Figure 5 It is a schematic diagram of the main cross-sectional structure of the demoulding mechanism of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the liquid injection tube of the present invention.

[0024] Figure 7 It is a schematic diagram of the front cross-sectional structure of the defoaming mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the front cross-sectional structure of the fixing mechanism of the present invention.

[0026] In the figure: upper die base-1, lower die base-2, injection pipe-3, fixing mechanism-4, first body-1a, slot-1b, round plate-1c, second body-2a, groove-2b, vertical rod-2c, first support plate-2d, No. 1 spring-2e, raised block-2f, demoulding mechanism-2g, support rod-2g1, second support plate-2g2, No. 2 spring-2g3, pressing plate-2g4, impact Block-2g5, end cover-3a, tube body-3b, defoaming mechanism-3c, shell-3c1, guide ring-3c2, liquid inlet-3c3, rotating shaft-3c4, baffle-3c5, stirring rod-3c6, liquid outlet-3c7, air pipe-3c8, main body-4a, cross bar-4b, No. 3 spring-4c, L-shaped rod-4d, locking block-4e, rotating handle-4f, No. 4 spring-4g. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the preferred implementation scheme of the present invention is further described below in conjunction with specific implementation schemes and accompanying drawings.

[0028] Example

[0029] See also Figure 1-Figure 8 The present invention provides a casting mold for injection, which structure includes an upper mold base 1, a lower mold base 2, an injection pipe 3, and a fixing mechanism 4. The lower mold base 2 is provided on the bottom surface of the upper mold base 1, and the upper mold base 1 and the lower mold base 2 are movably fitted together. The injection pipe 3 is provided at the middle position of the top surface of the upper mold base 1. The upper mold base 1 and the injection pipe 3 cooperate with each other. The left end surface of the upper mold base 1 is provided with a fixing mechanism 4. The upper mold base 1 and the fixing mechanism 4 are connected by a hinge, and the lower mold base 2 and the fixing mechanism 4 cooperate with each other.

[0030] The upper die base 1 is composed of a first body 1a, a slot 1b, and a circular plate 1c. Slots 1b are provided on both sides of the top of the first body 1a. A circular plate 1c is provided on the inner wall of the slot 1b. The first body 1a and the circular plate 1c are fixedly connected.

[0031] The lower mold base 2 is composed of a second body 2a, a groove 2b, a vertical rod 2c, a first support plate 2d, a No. 1 spring 2e, a protruding block 2f, and a demolding mechanism 2g. The left and right ends of the second body 2a are provided with grooves 2b. The top surface of the second body 2a is provided with two vertical rods 2c. The second body 2a and the vertical rod 2c are movably connected. The surface of the vertical rod 2c is provided with a first support plate 2d. The vertical rod 2c and the first support plate 2d are an integrated structure. The bottom surface of the vertical rod 2c is provided with a protruding block 2f. The vertical rod 2c and the protruding block 2f are connected. The first support plate 2d is located directly above the protruding block 2f. The top surface of the first support plate 2d is provided with a No. 1 spring 2e. The first support plate 2d and the No. 1 spring 2e are movably connected. A demolding mechanism 2g is provided inside the second body 2a. The second body 2a and the demolding mechanism 2g cooperate.

[0032] The demoulding mechanism 2g is composed of a support rod 2g1, a second support plate 2g2, a No. 2 spring 2g3, a pressing plate 2g4, and an impact block 2g5. Two support rods 2g1 are arranged on the surface of the pressing plate 2g4. The support rod 2g1 and the pressing plate 2g4 are slidably matched. A second support plate 2g2 is arranged on the bottom end surface of the support rod 2g1. The support rod 2g1 and the second support plate 2g2 are an integrated structure. The pressing plate 2g4 and the second support plate 2g2 are movably connected by the No. 2 spring 2g3. An impact block 2g5 is arranged in the middle of the top surface of the pressing plate 2g4. The pressing plate 2g4 and the impact block 2g5 are welded and connected;

[0033] The function of the pressing plate 2g4 is to push the pressing plate 2g4 to squeeze the No. 2 spring 2g3, so that the recoil force of the No. 2 spring 2g3 bounces the pressing plate 2g4 upward.

[0034] The injection tube 3 is composed of an end cover 3a, a tube body 3b, and a debubble mechanism 3c. The end cover 3a is provided on the top surface of the tube body 3b. The tube body 3b and the end cover 3a are connected by a hinge. The debubble mechanism 3c is provided inside the tube body 3b. The tube body 3b and the debubble mechanism 3c cooperate with each other.

[0035] The defoaming mechanism 3c is composed of a shell 3c1, a guide ring 3c2, a liquid inlet 3c3, a rotating shaft 3c4, a baffle 3c5, a stirring rod 3c6, a liquid outlet 3c7, and an air pipe 3c8. A guide ring 3c2 is provided on the surface of the shell 3c1, and the shell 3c1 is connected to the guide ring 3c2. Liquid inlets 3c3 are provided at both the front and rear ends of the shell 3c1. A rotating shaft 3c4 is provided on the upper part of the shell 3c1. The shell 3c1 and the rotating shaft 3c4 are movably connected. Four baffles 3c5 are installed on the surface of one end of the rotating shaft 3c4. More than two stirring rods 3c6 are provided on the surface of the other end of the rotating shaft 3c4. The rotating shaft 3c4 and the stirring rod 3c6 are movably connected. More than two liquid outlets 3c7 are provided on the bottom surface of the shell 3c1. Air pipes 3c8 are provided on both the left and right ends of the shell 3c1, and the shell 3c1 and the air pipe 3c8 are connected.

[0036] The baffle 3c5 has the function that the impact force generated when the liquid metal flows in from the liquid inlet 3c3 will push the baffle 3c5, thereby causing the rotating shaft 3c4 to rotate and drive the stirring rod 3c6 to rotate.

[0037] The fixing mechanism 4 is composed of a main body 4a, a cross bar 4b, a No. 3 spring 4c, an L-shaped rod 4d, a locking block 4e, a rotating handle 4f, and a No. 4 spring 4g. A cross bar 4b is provided inside the main body 4a, and a No. 3 spring 4c is provided at one end of the cross bar 4b. The main body 4a and the cross bar 4b are slidably matched through the No. 3 spring 4c. An L-shaped rod 4d is provided on the bottom end surface of the cross bar 4b. The cross bar 4b and the L-shaped rod 4d are movably fitted together. The rotating handle 4f runs through the bottom end of the L-shaped rod 4d. The L-shaped rod 4d and the rotating handle 4f are slidably matched. A locking block 4e is provided at one end of the rotating handle 4f. The rotating handle 4f and the locking block 4e are an integrated structure. A No. 4 spring 4g is provided on the bottom end surface of the L-shaped rod 4d. The main body 4a and the L-shaped rod 4d are slidably matched through the No. 4 spring 4g.

[0038] The function of the rotating handle 4f is to change the direction of the locking block 4e by rotating the rotating handle 4f to perform fixing and separation.

[0039] The first body 1a and the vertical rod 2c are slidably matched, the first support plate 2d and the circular plate 1c are movably connected via a spring 2e, the pressing plate 2g4 and the impact block 2g5 are both slidably matched with the second body 2a, the support rod 2g1 is movably connected with the second body 2a, the tube body 3b is matched with the first body 1a, the guide ring 3c2 is connected with the tube body 3b, the air pipe 3c8 is matched with the tube body 3b, the liquid inlet 3c3 and the liquid outlet 3c7 are connected via the outer shell 3c1, the main body 4a is connected to the first body 1a via a hinge, the locking block 4e is matched with the groove 2b, and the impact block 2g5 is made of soft metal material to avoid damage to the mold during demoulding.

[0040] The principle of the present invention is as follows: by fitting the upper die base 1 and the lower die base 2 together, when the cross bar 4b contacts the raised block 2f, it will be pushed inward by the raised block 2f, so that the cross bar 4b pushes the L-shaped rod 4d downward, so that the locking block 4e is stuck in the groove 2b, and the end cover 3a is opened, and the liquid metal is poured into the tube body 3b. The liquid metal flows into the shell 3c1 through the guide ring 3c2 and the liquid inlet 3c3. When the liquid metal hits the baffle 3c5, it will push the rotating shaft 3c4 to rotate through the baffle 3c5, thereby driving the stirring rod 3c6 at the bottom of the rotating shaft 3c4 to rotate, stirring the liquid metal to make the gas inside The bubbles rise and are discharged from the air pipe 3c8 to the tube body 3b, and the liquid metal then flows out from the liquid outlet 3c7. When the part is formed, turn the rotating handle 4f to rotate the locking block 4e upward, so that the locking block 4e is no longer stuck in the groove 2b, and the No. 1 spring 2e squeezed between the circular plate 1c and the first support plate 2d will bounce the upper die base 1 upward, thereby separating the upper die base 1 and the lower die base 2, and pushing the pressing plate 2g4 downward. The No. 2 spring 2g3 squeezed between the pressing plate 2g4 and the second support plate 2g2 will bounce the pressing plate 2g4 upward, causing the impact block 2g5 to hit the bottom end of the part, thereby achieving demolding.

[0041] The method for solving the problem of the present invention is: the upper mold base 1 and the lower mold base 2 are connected together, and the two are fixed together by a fixing mechanism 4. When separation is required, only the fixing mechanism 4 needs to be released, and the upper mold base 1 will automatically pop up and separate from the lower mold base 2. It is convenient and time-saving to use, and greatly improves work efficiency. When the liquid metal is injected into the mold through the injection tube 3, it will first be stirred inside the debubble mechanism 3c, so that the bubbles in the liquid metal rise and are discharged from the injection tube 3, avoiding bubbles generated due to the different temperature differences between the inside and the outside, resulting in reduced quality of the molded parts.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms and various changes and improvements can be made. These changes and improvements all fall within the scope of the present invention to be protected. Therefore, the scope of protection of the present invention is defined by the attached claims and their equivalents, rather than the above description.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A casting mold for injection, the structure of which comprises an upper mold base (1), a lower mold base (2), an injection pipe (3), and a fixing mechanism (4). Features: A lower mold base (2) is provided on the bottom surface of the upper mold base (1), the upper mold base (1) and the lower mold base (2) are movably fitted together, a liquid injection tube (3) is provided at the middle position of the top surface of the upper mold base (1), the upper mold base (1) and the liquid injection tube (3) cooperate with each other, a fixing mechanism (4) is provided on the left surface of the upper mold base (1), the upper mold base (1) and the fixing mechanism (4) are connected by a hinge, and the lower mold base (2) and the fixing mechanism (4) cooperate with each other; The lower mold base (2) is composed of a second body (2a), a groove (2b), a vertical rod (2c), a first support plate (2d), a first spring (2e), a protruding block (2f), and a demoulding mechanism (2g). The second body (2a) is provided with grooves (2b) at both ends. The top surface of the second body (2a) is provided with two vertical rods (2c). The second body (2a) and the vertical rod (2c) are movably connected. The surface of the vertical rod (2c) is provided with a first support plate (2d). The vertical rod (2c) and the first support plate (2d) are provided. The support plate (2d) is an integrated structure, a protruding block (2f) is provided on the bottom surface of the vertical rod (2c), the vertical rod (2c) and the protruding block (2f) are connected, the first support plate (2d) is located directly above the protruding block (2f), a first spring (2e) is provided on the top surface of the first support plate (2d), the first support plate (2d) and the first spring (2e) are movably connected, a demoulding mechanism (2g) is provided inside the second body (2a), and the second body (2a) and the demoulding mechanism (2g) cooperate with each other; The demoulding mechanism (2g) is composed of a support rod (2g1), a second support plate (2g2), a No. 2 spring (2g3), a pressing plate (2g4), and an impact block (2g5); two support rods (2g1) are provided on the surface of the pressing plate (2g4); the support rod (2g1) and the pressing plate (2g4) are slidably matched; a second support plate (2g2) is provided on the bottom surface of the support rod (2g1); the support rod (2g1) and the second support plate (2g2) are an integrated structure; the pressing plate (2g4) and the second support plate (2g2) are movably connected via the No. 2 spring (2g3); an impact block (2g5) is provided at the middle position of the top surface of the pressing plate (2g4); and the pressing plate (2g4) and the impact block (2g5) are welded together; The upper die base (1) is composed of a first body (1a), a slot (1b), and a circular plate (1c); the slots (1b) are provided on both left and right sides of the top of the first body (1a); the circular plate (1c) is provided on the inner wall of the slot (1b); and the first body (1a) and the circular plate (1c) are fixedly connected; The fixing mechanism (4) is composed of a main body (4a), a cross bar (4b), a No. 3 spring (4c), an L-shaped rod (4d), a locking block (4e), a rotating handle (4f), and a No. 4 spring (4g). The main body (4a) is provided with a cross bar (4b) inside, and a No. 3 spring (4c) is provided at one end of the cross bar (4b). The main body (4a) and the cross bar (4b) are slidably matched via the No. 3 spring (4c). The bottom end surface of the cross bar (4b) is provided with an L-shaped rod (4d). The cross bar ( The main body (4a) and the L-shaped rod (4d) are movably fitted, the rotating handle (4f) passes through the bottom end of the L-shaped rod (4d), the L-shaped rod (4d) and the rotating handle (4f) are slidably fitted, a locking block (4e) is provided at one end of the rotating handle (4f), the rotating handle (4f) and the locking block (4e) are an integrated structure, a No. 4 spring (4g) is provided on the bottom end surface of the L-shaped rod (4d), and the main body (4a) and the L-shaped rod (4d) are slidably fitted via the No. 4 spring (4g).

2. A casting mold for injection molding according to claim 1, Features: The liquid injection tube (3) is composed of an end cover (3a), a tube body (3b), and a debubbling mechanism (3c); the end cover (3a) is provided on the top surface of the tube body (3b); the tube body (3b) and the end cover (3a) are connected via a hinge; the debubbling mechanism (3c) is provided inside the tube body (3b); the tube body (3b) and the debubbling mechanism (3c) cooperate with each other.

3. A casting mold for injection molding according to claim 2, Features: The defoaming mechanism (3c) comprises a shell (3c1), a guide ring (3c2), a liquid inlet (3c3), a rotating shaft (3c4), a baffle (3c5), a stirring rod (3c6), a liquid outlet (3c7), and an air pipe (3c8); a guide ring (3c2) is provided on the surface of the shell (3c1); the shell (3c1) and the guide ring (3c2) are connected; liquid inlets (3c3) are provided at both the front and rear ends of the shell (3c1); a rotating shaft (3c4) is provided on the upper part of the shell (3c1); The shell (3c1) and the rotating shaft (3c4) are movably connected, four baffles (3c5) are installed on one end surface of the rotating shaft (3c4), and more than two stirring rods (3c6) are provided on the other end surface of the rotating shaft (3c4). The rotating shaft (3c4) and the stirring rods (3c6) are movably connected, and more than two liquid outlets (3c7) are provided on the bottom end surface of the shell (3c1). Air pipes (3c8) are provided on both left and right ends of the shell (3c1), and the shell (3c1) and the air pipe (3c8) are connected.

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