Rapid forming injection mold

Abstract

The utility model provides a rapid forming injection mold which comprises a base, a first injection mold base arranged on the base, supporting frames fixedly installed on the left side and the right side of the base, installation bases arranged on the supporting frames, lead screws fixedly installed on the installation bases, a movable plate connected to the supporting frames in a sliding mode, the left end and the right end of the movable plate are connected with the lead screws, and connecting columns fixedly installed at the bottom of the movable plate. A top plate is fixedly installed at the bottom end of the connecting column, a second injection molding base is fixedly installed on the bottom face of the top plate, and a telescopic air cylinder penetrates through the movable plate. According to the rapid forming injection mold, the pressing plate is arranged in the second injection mold base, and the top face of the pressing plate is connected with the output end of the telescopic air cylinder, so that when the telescopic air cylinder can drive the pressing plate to ascend and descend, a cured formed product can be pushed downwards, and demolding is completed; through the second injection molding base and the top plate which are internally provided with the through grooves which are distributed at equal intervals and connected with each other and the cooling liquid arranged in the through grooves, the cooling liquid is made to circulate in the second injection molding base and the top plate all the time in cooperation with the connecting pipe and the circulating pump, and therefore the rapid cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and more specifically to a rapid molding injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to injecting heated and melted plastic into a mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification. However, after the injection mold is solidified, it is necessary to demold the injection mold. Although the existing injection molding device can quickly cool the injection mold through a cooling fan, it is unable to effectively and quickly detach the solidified injection mold.

[0003] In view of the above problems, regarding the technical problem that the cured injection mold cannot be effectively and quickly separated, after a lot of searching, a Chinese utility model with application number CN218906133U was found, which provides an injection mold that is convenient for rapid molding. The utility model includes a base, a support frame, an injection mold seat, an injection mold groove and an ejector module. The new solution can perform rapid injection molding on the injection mold when the injection mold is being injected, and can automatically eject the mold after the mold is formed, so as to better remove the mold after the molding, and the structure is simple, which is convenient for heat dissipation of the injection mold seat. The patent provides a method for rapidly cooling the mold and assisting the mold in better disassembly and disassembly. However, the technical solution provided by the patent has the following problems: it is difficult to achieve rapid cooling by only dissipating heat through the heat sink and the fan at the bottom of the injection mold seat. The fan is difficult to dissipate heat for the liquid plastic in the injection mold slot through the injection mold base, resulting in a long condensation time and low efficiency. Secondly, the device ejects the molding flat plate and achieves the demolding effect when the top module that passes through the bottom of the injection mold seat moves upward. This method creates a gap between the bottom of the injection mold seat and the top module. The liquid plastic may penetrate downward into the gap, causing the top module to adhere to the injection mold column, or even leak.

[0004] Therefore, the utility model proposes a rapid prototyping injection mold. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a rapid prototyping injection mold. When in use, through the second injection mold base, the first injection mold base and the pressure plate for pushing the molded product downward from the top and demolding it, it is avoided that the existing device is provided with a movable top module at the bottom of the injection mold groove, resulting in a gap between the bottom of the mold base and the top module, and the liquid plastic has the risk of penetrating downward into the gap, causing the top module to adhere to the injection mold column, or even leaking.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid prototyping injection mold, comprising a base, a first injection mold seat is arranged on the base, support frames are fixedly installed on the left and right sides of the base, a mounting seat is arranged on the support frame, a screw rod is fixedly installed on the mounting seat, a movable plate is slidably connected to the support frame, the left and right ends of the movable plate are connected to the screw rod, a connecting column is fixedly installed at the bottom of the movable plate, a top plate is fixedly installed at the bottom end of the connecting column, a second injection mold seat is fixedly installed on the bottom surface of the top plate, a telescopic cylinder is penetrated through the movable plate, and a pressure plate is connected to the output end of the telescopic cylinder, a feed port is arranged on the top plate, the feed port is connected to a feed hose, a circulating pump is arranged on the top surface of the top plate, and the circulating pump is connected to a connecting pipe.

[0007] A further preferred solution: when the second injection mold seat is in a closed state with the first injection mold seat, the outer wall of the second injection mold seat fits with the inner wall of the first injection mold seat, and the height of the second injection mold seat is greater than that of the first injection mold seat.

[0008] A further preferred solution: the support frame is in the shape of a "mouth", and the mounting seat is placed at the center of the support frame.

[0009] A further preferred solution is that protruding blocks are provided on both sides of the movable plate, and the protruding blocks fit into the gaps left by the support frame and the mounting seat.

[0010] A further preferred solution is that the pressing plate is arranged inside the second injection mold base, and the top surface is connected to the output end of the telescopic cylinder.

[0011] A further preferred solution: the second injection mold base and the top plate are provided with through grooves which are equidistantly distributed and interconnected, and the through grooves are provided with cooling liquid.

[0012] A further preferred solution is that the through groove is connected to a circulation pump via a connecting pipe.

[0013] A further preferred solution is that one side of the upper end of the second injection mold base is provided with an exhaust port, and a sealing cover is provided at the outer end of the exhaust port.

[0014] Beneficial effects:

[0015] 1. By using the second injection mold seat whose outer wall is in contact with the inner wall of the first injection mold seat when the first injection mold seat is in a closed state, the second injection mold seat and the first injection mold seat form a closed state to seal the liquid plastic therein, thereby effectively preventing the liquid plastic from leaking. By using the second injection mold seat having a height greater than that of the first injection mold seat, the solidified molded product can be easily taken out when it is demolded and placed in the first injection mold seat.

[0016] 2. The "mouth"-shaped support frame ensures that the device is ventilated on all sides to avoid hot air stagnation and enhance the heat dissipation effect. The mounting seat placed in the center of the support frame cooperates with the movable plate with protruding blocks on both sides, and the protruding blocks fit in the gaps left in the support frame and the mounting seat, so that when the screw rod drives the movable plate to move up and down, it can play a guiding role and increase stability.

[0017] 3. A pressure plate is arranged inside the second injection mold base, and the top surface is connected to the output end of the telescopic cylinder. When the telescopic cylinder can drive the pressure plate to rise and fall, the solidified molded product can be pushed downward and demolding can be completed. The second injection mold base and the top plate are provided with equidistantly distributed and interconnected through grooves, and the through grooves are provided with coolant. In conjunction with the connecting pipe and the circulating pump, the coolant is always circulated inside the second injection mold base and the top plate, thereby achieving a rapid cooling effect.

[0018] 4. A second injection mold base is provided with an exhaust port on one side of the upper end and a sealing cover at the outer end of the exhaust port, so that it is possible to avoid the mold internal pressure being greater than the mold external pressure, which causes demoulding difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic structural diagram of the mold opening state of the utility model.

[0021] Figure 3 This is a schematic structural diagram of the mold in the closed state of the utility model.

[0022] Figure 4 It is a schematic diagram of a partial three-dimensional decomposition structure of the utility model.

[0023] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0024] Figure 1-5 In: 1. Base; 2. First injection mold seat; 3. Support frame; 4. Mounting seat; 401. Screw rod; 5. Movable plate; 6. Telescopic cylinder; 7. Connecting column; 8. Top plate; 9. Second injection mold seat; 901. Exhaust port; 10. Press plate; 11. Feed port; 12. Feed hose; 13. Circulation pump; 14. Connecting pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0026] See also Figure 1-5In the embodiment of the utility model, a rapid prototyping injection mold comprises a base 1, a first injection mold seat 2 is arranged on the base 1, a support frame 3 is fixedly mounted on the left and right sides of the base 1, a mounting seat 4 is fixedly mounted on the support frame 3, a screw rod 401 is fixedly mounted on the mounting seat 4, a movable plate 5 is slidably connected to the support frame 3, the left and right ends of the movable plate 5 are connected to the screw rod 401, a connecting column 7 is fixedly mounted on the bottom of the movable plate 5, a top plate 8 is fixedly mounted on the bottom end of the connecting column 7, a second injection mold seat 9 is fixedly mounted on the bottom surface of the top plate 8, a telescopic cylinder 6 is penetrated through the movable plate 5, and a pressing plate 10 is connected to the output end of the telescopic cylinder 6, a feed port 11 is arranged on the top plate 8, a feed port 11 is connected to a feed hose 12, a circulating pump 13 is arranged on the top surface of the top plate 8, and the circulating pump 13 is connected to a connecting pipe 14. When in use, the movable plate 5 and the second injection mold seat 9 are first driven downward by the screw rod 401 until they are closed with the first injection mold seat 2, at which time the feed hose 12 and the feed port 11 are driven to move to the bottom surface of the movable plate 5. Just inject an appropriate amount of liquid plastic into the closed second injection mold seat 9 and the first injection mold seat 2. The second injection mold seat 9, whose outer wall is in contact with the inner wall of the first injection mold seat 2 when the first injection mold seat 2 is in the closed state, makes the second injection mold seat 9 and the first injection mold seat 2 form a closed state to seal the liquid plastic therein, effectively preventing the liquid plastic from leaking. Then, cooperate with the connecting pipe 14 and the circulating pump 13 to make the coolant always circulate inside the second injection mold seat 9 and the top plate 8, so as to achieve the effect of quickly cooling the liquid plastic and increasing its solidification speed. When the liquid plastic is solidified, the sealing cover at the outer end of the exhaust port 901 is opened to balance the pressure in the second injection mold seat 9 and the first injection mold seat 2 with the external pressure, and then the screw rod 401 drives the second injection mold seat 9 to rise, and at the same time, the telescopic cylinder 6 drives the pressing plate 10 to move downward. At this time, the molded product is pushed out by the pressing plate 10 to separate from the second injection mold seat 9 and fall into the first injection mold seat 2, and the demolding is completed.

[0027] In the embodiment of the utility model, when the second injection mold seat 9 is in a closed state with the first injection mold seat 2, the outer wall of the second injection mold seat 9 is in contact with the inner wall of the first injection mold seat 2, and the height of the second injection mold seat 9 is greater than that of the first injection mold seat 2. By using the second injection mold seat 9 whose outer wall is in contact with the inner wall of the first injection mold seat 2 when the second injection mold seat 9 is in a closed state with the first injection mold seat 2, the second injection mold seat 9 and the first injection mold seat 2 form a closed state to seal the liquid plastic therein, effectively preventing leakage of the liquid plastic. By using the second injection mold seat 9 whose height is greater than that of the first injection mold seat 2, the solidified molded product can be easily taken out when it is demolded and placed in the first injection mold seat 2.

[0028] When in use, the second injection mold base 9 is formed with the first injection mold base 2 in a closed state, and the outer wall thereof is in contact with the inner wall of the first injection mold base 2, so that the second injection mold base 9 and the first injection mold base 2 form a closed state to seal the liquid plastic therein, thereby effectively preventing leakage of the liquid plastic. After the liquid plastic is solidified, the second injection mold base 9 having a height greater than that of the first injection mold base 2 makes it convenient to take out the solidified molded product after demolding and placing it in the first injection mold base 2.

[0029] In the embodiment of the utility model, the support frame 3 is in the shape of a "mouth", and the mounting seat 4 is placed at the center of the support frame 3;

[0030] Protruding blocks are provided on both sides of the movable plate 5, and the protruding blocks are matched with the gaps left by the support frame 3 and the mounting seat 4. The support frame 3 in the shape of a "mouth" can ensure that the device is ventilated on all sides to avoid hot air stagnation and enhance the heat dissipation effect. The mounting seat 4 is placed at the center of the support frame 3, and cooperates with the movable plate 5 with protruding blocks on both sides, and the protruding blocks are matched with the gaps left by the support frame 3 and the mounting seat 4, so that when the screw rod 401 drives the movable plate 5 to move up and down, it can play a guiding role and increase stability.

[0031] When in use, firstly, the movable plate 5 and the second injection mold seat 9 are driven downward by the screw rod 401 until they are closed with the first injection mold seat 2. At this time, a proper amount of liquid plastic is injected into the closed second injection mold seat 9 and the first injection mold seat 2 through the feed hose 12 and the feed port 11.

[0032] In the embodiment of the utility model, the pressing plate 10 is arranged inside the second injection mold base 9, and the top surface is connected to the output end of the telescopic cylinder 6;

[0033] The second injection mold base 9 and the top plate 8 are provided with through grooves which are equidistantly distributed and interconnected, and coolant is provided in the through grooves. The through grooves are connected to the circulation pump 13 through the connecting pipe 14. The pressing plate 10 is arranged inside the second injection mold base 9, and the top surface is connected to the output end of the telescopic cylinder 6. When the telescopic cylinder 6 drives the pressing plate 10 to rise and fall, the solidified molded product can be pushed downward and demolding is completed. The second injection mold base 9 and the top plate 8 are provided with through grooves which are equidistantly distributed and interconnected, and coolant is provided in the through grooves. In combination with the connecting pipe 14 and the circulation pump 13, the coolant is always circulated inside the second injection mold base 9 and the top plate 8, thereby achieving a rapid cooling effect.

[0034] When in use, through the second injection mold base 9 and the top plate 8, which are provided with equidistantly distributed and interconnected through grooves, and the through grooves are provided with coolant, the connecting pipe 14 and the circulating pump 13 are used to make the coolant always circulate inside the second injection mold base 9 and the top plate 8, so as to achieve the effect of quickly cooling the liquid plastic and improving its solidification speed. When the liquid plastic is solidified, the sealing cover at the outer end of the exhaust port 901 is opened, the screw rod 401 drives the second injection mold base 9 to rise, and the telescopic cylinder 6 drives the pressing plate 10 to move downward. At this time, the molded product is pushed out by the pressing plate 10 to separate from the second injection mold base 9 and fall into the first injection mold base 2, and the demolding is completed.

[0035] In the embodiment of the utility model, one side of the upper end of the second injection mold base 9 is provided at the exhaust port 901, and a sealing cover is provided at the outer end of the exhaust port 901. The second injection mold base 9 having one side of the upper end provided at the exhaust port 901 and a sealing cover at the outer end of the exhaust port 901 can avoid the difficulty of demolding caused by the internal pressure of the mold being greater than that outside the mold.

[0036] During use, after the liquid plastic has solidified, first open the sealing cover at the outer end of the exhaust port 901 to balance the pressure inside the second injection mold seat 9 and the first injection mold seat 2 with the external pressure. At this time, the screw rod 401 can drive the second injection mold seat 9 to rise, and at the same time, the telescopic cylinder 6 drives the pressure plate 10 to move downward, so as to avoid the difficulty of demolding caused by the pressure inside the mold being greater than that outside the mold.

Claims

1. A rapid prototyping injection mold, comprising a base (1), characterized in that: A first injection mold base (2) is provided on the base (1). Support frames (3) are fixedly installed on the left and right sides of the base (1). An installation base (4) is provided on the support frames (3). A lead screw (401) is fixedly installed on the installation base (4). A movable plate (5) is slidably connected to the support frames (3). The left and right ends of the movable plate (5) are connected to the lead screw (401). A connecting column (7) is fixedly installed at the bottom of the movable plate (5). A top plate (8) is fixedly installed at the bottom end of the connecting column (7). A second injection mold base (9) is fixedly installed on the bottom surface of the top plate (8). A telescopic cylinder (6) penetrates through the movable plate (5), and a pressing plate (10) is connected to the output end of the telescopic cylinder (6). A feed inlet (11) is provided on the top plate (8). The feed inlet (11) is connected to a feed hose (12). A circulating pump (13) is provided on the top surface of the top plate (8). The circulating pump (13) is connected to a connecting pipe (14).

2. A rapid prototyping injection mold according to claim 1, characterized in that: When the second injection mold base (9) and the first injection mold base (2) are in a closed state, the outer wall of the second injection mold base (9) fits against the inner wall of the first injection mold base (2), and the height of the second injection mold base (9) is greater than that of the first injection mold base (2).

3. A rapid prototyping injection mold according to claim 1, characterized in that: The support frames (3) are in the shape of a "mouth", and the installation base (4) is located at the center of the support frames (3).

4. A rapid prototyping injection mold according to claim 1, characterized in that: Protruding blocks are provided on both sides of the movable plate (5), and the protruding blocks fit into the gaps left between the support frames (3) and the installation base (4).

5. The rapid prototyping injection mold according to claim 1, characterized in that: The pressing plate (10) is arranged inside the second injection mold base (9), and the top surface is connected to the output end of the telescopic cylinder (6).

6. The rapid prototyping injection mold according to claim 1, characterized in that: Equidistantly distributed and interconnected through grooves are provided inside the second injection mold base (9) and the top plate (8), and a coolant is provided in the through grooves.

7. A rapid prototyping injection mold according to claim 6, characterized in that: The through grooves are connected to the circulating pump (13) through the connecting pipe (14).

8. The rapid prototyping injection mold according to claim 1, characterized in that: An exhaust port (901) is provided on one side of the upper end of the second injection mold base (9), and a sealing cover is provided at the outer end of the exhaust port (901).

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