Porous complex product injection mold

Abstract

The utility model discloses a porous complex product injection mold which comprises a bottom plate, lower mold bases arranged on the two sides of the top end of the bottom plate, a lower mold arranged at the top ends of the two lower mold bases, an upper mold arranged above the lower mold, an upper mold base arranged at the top end of the upper mold, and a top base arranged at the end, away from the upper mold, of the upper mold base. A top plate is arranged in the center of the interior of the lower die, ejector pins are arranged at the bottom end of the top plate at equal intervals, a fixed die core is arranged above the top plate, fixed die bases are arranged at the top end of the lower die in front of and behind the fixed die core, and piece containing frames are arranged on the outer walls of the two sides of the lower die. According to the utility model, the blanking precision of the product is guaranteed, the damage of the product in the blanking process is reduced, the glue injection of the material to each position of the product within the shortest time can be ensured, the glue injection time is greatly reduced, the stability of the product size is ensured, the temperature of the product in the mold cavity is more balanced, and the product quality is improved. And the phenomenon of coke decomposition caused by over-high temperature of a certain position of the product is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold for porous complex products. Background Technique

[0002] The size and shape of the porous complex product are large, and its internal is a hollow structure composed of 36 holes, and there are many feature points on all four sides, with a complex shape. The previously common method was the rough blank extrusion method. However, due to the large waste, it is extremely unfavorable for energy conservation, emission reduction, and low-carbon sustainable development. Therefore, the corresponding injection mold needs to be used.

[0003] An injection mold for the production of plastic products with porous gating, with the reference publication number of CN214982841U, includes an injection mold body one and an injection mold body two. A base is installed at the bottom of the injection mold body one. A fixed rod is fixedly connected to the top of the base. A top cover is installed at the top of the fixed rod. An electric telescopic rod is fixedly connected to the inner wall of the top of the top cover. An extrusion box is installed at the bottom of the electric telescopic rod. A material box is sleeved at the bottom of the extrusion box. A feed pipe with a valve is installed on one side of the material box. The bottom of the material box is fixedly connected to a discharge box. An extrusion pipe one is installed at the bottom of the discharge box. A sliding hole is opened at the top of the discharge box. The beneficial effects are as follows: This injection mold adopts the method of first closing the mold and then injecting plastic, eliminating the process of manual mold closing, having the advantages of improving the uniformity of the injected raw materials, saving manpower, and improving production efficiency. According to the above, although this injection mold can be well applied, it is usually not convenient for the four-direction core-pulling design, and it is difficult to perform core-pulling from both sides of the product and then eject and discharge the material. Furthermore, it is difficult to ensure the blanking accuracy of the porous complex product, and it is easy to damage the product, which still needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an injection mold for porous complex products, so as to solve the problems mentioned in the above background technique that although the injection mold can be well applied, it is usually not convenient for the four-direction core-pulling design, it is difficult to perform core-pulling from both sides of the product and then eject and discharge the material, and furthermore, it is difficult to ensure the blanking accuracy of the porous complex product and it is easy to damage the product.

[0005] To achieve the above object, the present utility model provides the following technical solution: A porous complex product injection mold, including a bottom plate, both sides of the top end of the bottom plate are provided with lower mold bases, the top ends of the two lower mold bases are provided with a lower mold, an upper mold is arranged above the lower mold, the top end of the upper mold is provided with an upper mold base, a top seat is arranged at one end of the upper mold base away from the upper mold, a top plate is arranged at the central position inside the lower mold, ejector pins are arranged at equal intervals at the bottom end of the top plate, a fixed mold core is arranged above the top plate, fixed mold seats are arranged at the top ends of the lower mold in front of and behind the fixed mold core, placing racks are arranged on the outer walls on both sides of the lower mold, liquid injection pipes are arranged on the inner walls on both sides of the placing rack, an oil cylinder is installed on the outer wall of the placing rack, one end of the oil cylinder extends to the inside of the placing rack and is provided with a movable plate, a movable seat is arranged at the end of the movable plate away from the oil cylinder, and a movable mold core is arranged on the inner wall of the movable seat.

[0006] Preferably, pin cylinders are arranged at the corner positions at the bottom of the upper mold, a pin is movably connected inside the pin cylinder, the bottom end of the pin extends outside the pin cylinder and is fixedly connected to the top end of the lower mold. Through the arrangement of the pin and the pin cylinder, the upper mold can be accurately pressed down to be clamped on the top end of the lower mold.

[0007] Preferably, a liquid injection pipe is arranged at the central position at the top end of the top seat, the bottom end of the liquid injection pipe extends into the upper mold base and is provided with an oil liquid box. Through the arrangement of the liquid injection pipe, the coolant can be injected into the oil liquid box.

[0008] Preferably, a glue injection box is arranged inside the upper mold above the fixed mold core, a second glue injection pipe is arranged on one side of the top end of the glue injection box, and both ends of the second glue injection pipe extend outside the upper mold. Through the arrangement of the second glue injection pipe, the product can be subjected to glue injection treatment in a multi-point manner.

[0009] Preferably, two first glue injection pipes are arranged on the outer wall on one side of the glue injection box, and the ends of the first glue injection pipes away from the glue injection box extend outside the upper mold. Through the arrangement of the first glue injection pipe, the product can be subjected to glue injection treatment in a multi-point manner.

[0010] Preferably, a first cooling pipe is arranged on one side at the bottom end of the oil liquid box, the bottom end of the first cooling pipe extends into the fixed mold core and is provided with a first temperature control pipe. Through the arrangement of the first temperature control pipe, the upper end of the product can be cooled down.

[0011] Preferably, a second cooling pipe is arranged at the bottom end of the oil liquid box on one side of the first cooling pipe, the bottom end of the second cooling pipe extends into the fixed mold core and is provided with a second temperature control pipe. Through the arrangement of the second temperature control pipe, the lower end of the product can be cooled down.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: This injection mold for porous complex products not only ensures the blanking accuracy of the product, reduces damage to the product during the blanking process, but also can ensure that the material is injected into each position of the product in the shortest time, greatly reducing the injection time, ensuring the dimensional stability of the product, and making the temperature of the product in the mold cavity more balanced, preventing the product from decomposing into coke due to excessive temperature at a certain place;

[0013] (1) By designing the fixed mold core as a four-direction core-pulling structure according to the product shape, two core-pulling structures composed of relevant components such as oil cylinders are respectively installed on both sides of the fixed mold core, ensuring that the sequence of the product after mold opening is that the core is first pulled by the oil cylinders on both sides, and then the product is ejected by the top plate after completion, thus ensuring the blanking accuracy of the product and reducing damage to the product during the blanking process;

[0014] (2) Through the setting of the first injection tube and the second injection tube, the injection points are selected on both sides of the product shape and are set as multiple injection points. This design can ensure that the material is injected into each position of the product in the shortest time, greatly reducing the injection time, and thus ensuring the dimensional stability of the product;

[0015] (3) By respectively arranging the first temperature control tube and the second temperature control tube at the upper and lower ends inside the fixed mold core, when the coolant is injected from the injection tube, the coolant can flow into the first temperature control tube and the second temperature control tube through the first cooling tube and the second cooling tube respectively, so as to uniformly cool and lower the temperature of the product from the upper and lower ends, making the temperature of the product in the mold cavity more balanced and preventing the product from decomposing into coke due to excessive temperature at a certain place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is a top view structure schematic diagram of the lower mold of the present utility model;

[0018] Figure 3 is a bottom view structure schematic diagram of the upper mold of the present utility model;

[0019] Figure 4 is a side view structure schematic diagram of the moving mold core of the present utility model;

[0020] Figure 5 is a top view structure schematic diagram of the fixed mold core of the present utility model.

[0021] In the figure: 1, bottom plate; 2, lower die holder; 3, lower die; 4, upper die; 5, upper die holder; 6, top seat; 7, component placement rack; 8, oil cylinder; 9, liquid injection pipe; 10, movable plate; 11, movable seat; 12, fixed die holder; 13, fixed die core; 14, pin column; 15, glue injection box; 16, first glue injection pipe; 17, second glue injection pipe; 18, ejector pin; 19, top plate; 20, movable die core; 21, oil liquid box; 22, first cooling pipe; 23, first temperature control pipe; 24, second cooling pipe; 25, second temperature control pipe; 26, pin cylinder. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , an embodiment provided by the present invention: an injection mold for a porous complex product, including a bottom plate 1, lower die holders 2 are provided on both sides of the top end of the bottom plate 1, a lower die 3 is provided on the top ends of the two lower die holders 2, an upper die 4 is provided above the lower die 3, pin cylinders 26 are provided at the corner positions of the bottom of the upper die 4, a pin column 14 is movably connected inside the pin cylinder 26, and the bottom end of the pin column 14 extends to the outside of the pin cylinder 26 and is fixedly connected to the top end of the lower die 3;

[0024] During use, through the setting of the pin column 14 and the pin cylinder 26, the upper die 4 can be accurately pressed down to be clamped on the top end of the lower die 3;

[0025] An upper die holder 5 is provided at the top end of the upper die 4, a top seat 6 is provided at one end of the upper die holder 5 away from the upper die 4, a liquid injection pipe 9 is provided at the center position of the top end of the top seat 6, and the bottom end of the liquid injection pipe 9 extends into the inside of the upper die holder 5 and an oil liquid box 21 is provided;

[0026] During use, through the setting of the liquid injection pipe 9, the coolant can be injected into the oil liquid box 21;

[0027] A first cooling pipe 22 is provided on one side of the bottom end of the oil liquid box 21, and the bottom end of the first cooling pipe 22 extends into the inside of the fixed die core 13 and a first temperature control pipe 23 is provided;

[0028] During use, through the setting of the first temperature control pipe 23, the upper end of the product can be cooled and the temperature can be lowered;

[0029] A second cooling pipe 24 is provided at the bottom end of the oil liquid box 21 on one side of the first cooling pipe 22, and the bottom end of the second cooling pipe 24 extends into the inside of the fixed die core 13 and a second temperature control pipe 25 is provided;

[0030] During use, through the setting of the second temperature control tube 25, the lower end of the product can be cooled down.

[0031] At the central position inside the lower mold 3, there is a top plate 19. At the bottom end of the top plate 19, there are ejector pins 18 arranged at equal intervals. Above the top plate 19, there is a fixed mold core 13. Inside the upper mold 4 above the fixed mold core 13, there is a glue injection box 15. On one side of the top end of the glue injection box 15, there is a second glue injection tube 17, and both ends of the second glue injection tube 17 extend to the outside of the upper mold 4.

[0032] During use, through the setting of the second glue injection tube 17, the product can be subjected to multi-point glue injection treatment.

[0033] On the outer wall of one side of the glue injection box 15, there are two first glue injection tubes 16, and the ends of the first glue injection tubes 16 away from the glue injection box 15 extend to the outside of the upper mold 4.

[0034] During use, through the setting of the first glue injection tube 16, the product can be subjected to multi-point glue injection treatment.

[0035] On the top end of the lower mold 3 in front of and behind the fixed mold core 13, there are fixed mold bases 12. On the outer walls of both sides of the lower mold 3, there are component placement racks 7. On the inner walls of both sides of the component placement racks 7, there are liquid injection tubes 9. An oil cylinder 8 is installed on the outer wall of the component placement rack 7. One end of the oil cylinder 8 extends to the inside of the component placement rack 7 and is provided with a movable plate 10. The end of the movable plate 10 away from the oil cylinder 8 is provided with a movable seat 11, and a movable mold core 20 is provided on the inner wall of the movable seat 11.

[0036] When the embodiment of the present application is in use, first, through the setting of the pin 14 and the pin barrel 26, it is easy to accurately close the upper mold 4 to the top end of the lower mold 3, reducing the phenomenon of offset when the upper mold 4 moves down for closing. Then, through the setting of the first glue injection tube 16 and the second glue injection tube 17, the glue injection points are selected on both sides of the product shape. Since it is set in the way of multiple glue injection points, the material can be injected to each position of the product outside the fixed mold core 13 in the shortest time, which can reduce the glue injection time and ensure the dimensional stability of the product. After that, the first temperature control tube 23 and the second temperature control tube 25 are respectively arranged at the upper and lower ends inside the fixed mold core 13. When the coolant is injected from the liquid injection tube 9, the coolant can flow into the first temperature control tube 23 and the second temperature control tube 25 through the first cooling tube 22 and the second cooling tube 24 respectively, so as to uniformly cool the product from the upper and lower ends. Finally, according to the product shape, the fixed mold core 13 is designed as a four-direction core-pulling structure. On both sides of the fixed mold core 13, there are two core-pulling structures composed of the oil cylinder 8 and other related components, so as to ensure that the sequence of the product after mold opening is that the core is first pulled by the oil cylinders 8 on both sides, and after that, the product is ejected by the top plate 19, so as to ensure the blanking accuracy of the product, thus completing the use of the injection mold.

Claims

1. A porous complex product injection mold, characterized by: The invention comprises a bottom plate (1), lower mold seats (2) are arranged on both sides of the top of the bottom plate (1), lower molds (3) are arranged on the tops of the two lower mold seats (2), upper molds (4) are arranged on the top of the lower molds (3), upper mold seats (5) are arranged on the top of the upper molds (4), a top seat (6) is arranged on the end of the upper mold seat (5) away from the upper mold (4), a top plate (19) is arranged at the center position inside the lower mold (3), ejector pins (18) with equal spacing are arranged on the bottom of the top plate (19), and a fixed mold core (13) is arranged on the top of the top plate (19). ), the top of the lower mold (3) in front and behind the fixed mold core (13) is provided with a fixed mold seat (12), the outer walls of both sides of the lower mold (3) are provided with a mounting frame (7), the inner walls of both sides of the mounting frame (7) are provided with a liquid injection pipe (9), the outer wall of the mounting frame (7) is installed with an oil cylinder (8), one end of the oil cylinder (8) extends to the inner side of the mounting frame (7) and is provided with a movable plate (10), the end of the movable plate (10) away from the oil cylinder (8) is provided with a movable seat (11), and the inner wall of the movable seat (11) is provided with a movable mold core (20).

2. The porous complex product injection mold according to claim 1, characterized in that: A pin barrel (26) is provided at each corner of the bottom of the upper mold (4), and a pin column (14) is movably connected inside the pin barrel (26). The bottom end of the pin column (14) extends to the outside of the pin barrel (26) and is fixedly connected to the top end of the lower mold (3).

3. The porous complex product injection mold according to claim 1, characterized in that: A liquid injection pipe (9) is provided at the center position of the top end of the top seat (6); the bottom end of the liquid injection pipe (9) extends to the interior of the upper mold seat (5) and is provided with an oil box (21).

4. The porous complex product injection mold according to claim 1, characterized in that: A glue injection box (15) is provided inside the upper mold (4) above the fixed mold core (13), and a second glue injection tube (17) is provided on one side of the top end of the glue injection box (15), and both ends of the second glue injection tube (17) extend to the outside of the upper mold (4).

5. The porous complex product injection mold according to claim 4, characterized in that: Two first glue injection tubes (16) are provided on the outer wall of one side of the glue injection box (15), and one end of the first glue injection tube (16) away from the glue injection box (15) extends to the outside of the upper mold (4).

6. The porous complex product injection mold according to claim 3, characterized in that: A first cooling pipe (22) is provided on one side of the bottom end of the oil box (21); the bottom end of the first cooling pipe (22) extends to the interior of the fixed mold core (13) and is provided with a first temperature control pipe (23).

7. The porous complex product injection mold according to claim 6, characterized in that: A second cooling pipe (24) is provided at the bottom end of the oil box (21) on one side of the first cooling pipe (22); the bottom end of the second cooling pipe (24) extends to the interior of the fixed mold core (13) and is provided with a second temperature control pipe (25).

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