Glue leakage prevention injection mold

Abstract

The utility model discloses an anti-glue-leakage injection mold, which belongs to the field of injection molds and comprises a base, a lower mold arranged at the top end of the base, a mold cavity arranged at the top end of the lower mold, a top plate arranged above the base, four symmetrically distributed upright posts fixedly mounted between the top plate and the base, an upper mold arranged below the top plate, and a second cylinder fixedly mounted at the top end of the top plate, a piston shaft of the second air cylinder penetrates through the top plate in a sliding mode and is fixedly connected with the top end of the upper die, a stabilizing assembly is arranged between the upper die and the base, two symmetrically-distributed grooves are formed in the top end of the base, pressing assemblies are arranged in the two grooves, and an ejection assembly is arranged in the die cavity. When the upper mold and the lower mold are attached, the upper mold can be pressed by the pressing assembly, so that the upper mold and the lower mold are tightly attached, the phenomenon that the upper mold and the lower mold are separated under the action of colloid injection molding force can be avoided, and the phenomenon of glue leakage when products are processed by equipment can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold field, more specifically, relate to a leakproof glue injection mold. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size, injection molding is also called injection molding, and it is a kind of injection and molding forming method.Injection molding is a kind of processing method used when batch producing some complex parts, specifically, heated and melted plastic is injected into mold cavity by injection molding machine under high pressure, and after cooling and solidification, the shaped product is obtained, the advantages of injection molding method are high production speed and efficiency, operation can realize automation, various colors and shapes, the shape can be from simple to complex, and the size can be from large to small, moreover, the product size is accurate, the product is easy to update, and the shaped parts with complex shape can be formed.

[0003] When some existing injection molds are processed, the upper mold and the lower mold are adhered, then the glue is injected between the upper mold and the lower mold, when the glue is injected between the upper mold and the lower mold, there is impact force and swelling, and then the upper mold and the lower mold may be separated from close adhesion due to the injection force of the glue, liquid leakage phenomenon occurs, the product appears burr, not only reduces the processing quality of the product, but also causes waste of part of the material.Therefore, we provide a leakproof glue injection mold. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model provides a leakproof glue injection mold, adopts the following technical scheme:

[0005] A leakproof glue injection mold, comprising a base, the top end of the base is provided with a lower mold, the top end of the lower mold is provided with a mold cavity, the upper side of the base is provided with a top plate, four symmetrical vertical columns are fixedly installed between the top plate and the base, the lower side of the top plate is provided with an upper mold, the top end of the top plate is fixedly installed with a second air cylinder, the piston shaft of the second air cylinder is slidably penetrated through the top plate and is fixedly connected with the top end of the upper mold, a stable assembly is arranged between the upper mold and the base, two symmetrical grooves are arranged at the top end of the base, a pressing assembly is arranged in each groove, and an ejection assembly is arranged in the mold cavity.

[0006] By adopting the technical scheme, when the equipment is in use, the upper die is driven to descend by the second cylinder, the upper die and the lower die are attached, and the stable assembly is arranged between the upper die and the base, thereby playing a role of stabilizing the upper die, which is beneficial to maintaining the stability of the upper die during the lifting and lowering of the upper die, and helps to avoid the phenomenon of deviation of the upper die and the lower die when they are attached, when the upper die and the lower die are attached, the upper die is pressed by the pressing assembly, which facilitates the close attachment of the upper die and the lower die, helps to avoid the disengagement of the upper die and the lower die under the action of the injection force of the gel, helps to avoid the phenomenon of glue leakage during the processing of the equipment, is beneficial to maintaining the processing quality of the product, and after the processing of the product is completed, the upper die is driven to ascend by the second cylinder, and then the product is ejected from the mold cavity by the ejection assembly, thereby playing a role of demolding, which is convenient for the subsequent material taking of the staff.

[0007] Further, the stable assembly comprises four stable rods fixedly installed between the top plate and the base, and stable blocks are slidingly installed on the side walls of the stable rods, and one side of each stable block is fixedly connected with the side of the upper die opposite to the side of the base.

[0008] By adopting the technical scheme, when the upper die is lifted and lowered, the upper die with the stable blocks is located on the same side of the stable rods and slides, and through the cooperation of the stable blocks and the stable rods, the stability of the upper die during the lifting and lowering is maintained, and the deviation of the upper die and the lower die when they are attached is avoided.

[0009] Further, the pressing assembly comprises third cylinders fixedly installed on the inner walls of the bottom ends of the grooves, two installation seats fixedly installed on the piston shaft end portions of the third cylinders, two rotating rods rotatably installed on the top ends of the installation seats, two pressing plates fixedly installed on the top ends of the rotating rods, two rubber pads fixedly installed on the bottom ends of the pressing plates, two driven gears fixedly sleeved on the lower segment side walls of the rotating rods, two speed reduction motors fixedly installed on the top ends of the installation seats, and two drive gears fixedly sleeved on the side walls of the output shafts of the speed reduction motors and engaged with the same side driven gears.

[0010] By adopting the technical scheme, when the upper die and the lower die are attached, the installation seat and the pressing plate are driven to ascend by the third cylinder, then the drive gear is driven to rotate by the speed reduction motor, the drive gear drives the driven gear to rotate, the driven gear drives the rotating rod to rotate, and the rotating rod drives the pressing plate to rotate above the upper die, then the pressing plate is driven to descend by the third cylinder and contacts the top of the upper die, and the upper die and the lower die are closely attached under the pressing of the pressing plate, which helps to avoid the disengagement of the upper die and the lower die under the action of the injection force of the gel and helps to avoid the phenomenon of glue leakage during the processing of the equipment.

[0011] Further, two grooves are provided on the inner walls of the two sides of the grooves, and a plurality of telescopic plates are arranged in the two grooves, and the top ends of the two telescopic plates on the same side are fixedly connected with the side of the installation seat opposite to the side of the base.

[0012] By adopting the technical scheme, when the third cylinder drives the same-side mounting seat to lift, the mounting seat with the same-side multiple telescopic plates is located in the same-side sliding groove and slides, and the bottom end of each of the multiple telescopic plates is fixedly installed with a counterweight, and then when the mounting seat with the multiple telescopic plates lifts, the multiple telescopic plates are telescoped under the traction of the gravity of the counterweight, and through the cooperation of the multiple telescopic plates and the counterweight, the mounting seat can be limited and stabilized, which is beneficial to maintaining the stability of the lifting of the mounting seat.

[0013] Further, the ejection assembly comprises an ejection plate slidingly installed in the mold cavity, the base is fixedly installed with a mounting frame at the bottom end, the mounting frame is fixedly installed with a first cylinder at the inner wall of the bottom end, the piston shaft of the first cylinder slidingly penetrates through the base and extends into the mold cavity, the end of the piston shaft of the first cylinder is fixedly connected with the bottom end of the ejection plate, and the inner wall of the bottom end of the mold cavity is provided with a receiving groove matched with the ejection plate.

[0014] By adopting the technical scheme, when the product is finished, the ejection plate can be driven to rise by the first cylinder, the product can be driven to rise and separate from the mold cavity by the ejection plate, and the demolding effect can be achieved, which is convenient for subsequent material taking of the staff.

[0015] Further, the bottom end of the upper die is fixedly installed with four positioning blocks symmetrically distributed, and the lower die is provided with positioning grooves matched with the positioning blocks on the two sides.

[0016] By adopting the technical scheme, when the upper die and the lower die are attached, the positioning blocks are clamped with the positioning grooves provided on the side wall of the lower die, the positioning effect is achieved, and the accuracy when the upper die and the lower die are attached is maintained.

[0017] In summary, the utility model has the following beneficial technical effects:

[0018] (1) In the utility model, when the upper die and the lower die are attached, the mounting seat and the pressing plate are driven to rise by the third cylinder, then the pressing plate is driven to rotate above the upper die by the reduction motor, then the pressing plate is driven to descend and contact the top of the upper die by the third cylinder, and the upper die and the lower die are tightly attached under the pressing of the pressing plate, which helps to avoid the phenomenon that the upper die and the lower die are separated under the action of the gel injection force, and helps to avoid the phenomenon that glue leaks when the equipment processes products.

[0019] (2) In the utility model, when the upper die lifts, the upper die with the stabilizing blocks is located in the side wall of the same-side stabilizing rod and slides, and through the cooperation of the stabilizing blocks and the stabilizing rod, the stability of the lifting of the upper die is maintained, and then the accuracy when the upper die and the lower die are attached is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure diagram of the glue leakage prevention injection mold.

[0021] Figure 2 The utility model discloses a leakproof glue injection mold Figure 1 The enlarged view of A in the middle;

[0022] Figure 3 The utility model discloses a leakproof glue injection mold

[0023] Figure 4 The utility model discloses a leakproof glue injection mold Figure 3 The enlarged view of B in the middle;

[0024] Figure 5 The utility model discloses a leakproof glue injection mold pressing assembly display drawing;

[0025] Figure 6 The utility model discloses a leakproof glue injection mold Figure 5 The enlarged view of C in the middle.

[0026] Mark explanation in drawing:

[0027] 1, base; 2, lower mould; 3, mould cavity; 4, ejection plate; 5, stand; 6, first air cylinder; 7, mounting frame; 8, upper mould; 9, locating block; 10, stabilizing rod; 11, stabilizing block; 12, top plate; 13, second air cylinder; 14, locating groove; 15, recess; 16, multi-section telescopic plate; 17, mounting seat; 18, speed reducer motor; 19, driving gear; 20, driven gear; 21, rotating rod; 22, pressing plate; 23, counterweight; 24, third air cylinder; 25, sliding slot. Specific implementation

[0028] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end" is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mount", "set with", "sleeve set / interface", "connection" and the like should be understood broadly, for example, "connection", can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0031] The following combines the attached Figures 1-6 The utility model is further explained in detail.

[0032] Please refer to Figures 1-6 A leakproof glue injection mold, including base 1, the top of base 1 is equipped with lower mould 2, and the top of lower mould 2 is equipped with mould cavity 3, and the top of base 1 is equipped with top plate 12, four symmetrical distribution's stand column 5 are fixedly installed between top plate 12 and base 1, and the bottom of top plate 12 is equipped with upper mould 8, and the top of top plate 12 is fixedly installed with second cylinder 13, and the piston shaft of second cylinder 13 is slidably penetrated through top plate 12 and is fixedly connected with the top of upper mould 8, and the upper mould 8 and base 1 are equipped with firm component, and the firm component includes four firm rods 10 fixedly installed between top plate 12 and base 1, and firm block 11 is slidably installed on the lateral wall of firm rod 10, and one side of firm block 11 is fixedly connected with the opposite side of upper mould 8, and the bottom of upper mould 8 is fixedly installed with four symmetrical distribution's positioning block 9, and the both sides of lower mould 2 are equipped with the positioning slot 14 matched with positioning block 9.

[0033] When the equipment is used, the second cylinder 13 drives the upper mould 8 to descend, makes the upper mould 8 and lower mould 2 adhere, when the upper mould 8 is lifted, the upper mould 8 with firm block 11 is located on the same side firm rod 10 and slides, through the cooperation of firm block 11 and firm rod 10, it is favorable to keep the stability of the upper mould 8 lifting, helps to avoid the phenomenon that the upper mould 8 and lower mould 2 adhere to produce deviation, and the bottom of upper mould 8 is positioned through the setting of positioning block 9, when the upper mould 8 and lower mould 2 adhere, positioning block 9 is clamped with the positioning slot 14 opened in the lateral wall of lower mould 2, plays the role of positioning, is favorable to keep the accuracy when the upper mould 8 and lower mould 2 adhere.

[0034] The base 1 top end is provided with two symmetrical recesses 15, and the two recesses 15 are provided with pressing assemblies. The pressing assembly comprises a third cylinder 24 fixedly installed on the inner wall of the bottom end of the recess 15. The piston shaft end of the third cylinder 24 is fixedly installed with a mounting seat 17. The top end of the mounting seat 17 is rotatably installed with a rotating rod 21. The top end of the rotating rod 21 is fixedly installed with a pressing plate 22. The bottom end of the pressing plate 22 is fixedly installed with a rubber pad. The lower segment side wall of the rotating rod 21 is fixedly sleeved with a driven gear 20. The top end of the mounting seat 17 is fixedly installed with a speed reducer motor 18. The side wall of the output shaft of the speed reducer motor 18 is fixedly sleeved with a drive gear 19. The drive gear 19 is engaged with the same side driven gear 20.

[0035] When the upper die 8 and the lower die 2 are attached, the mounting seat 17 and the pressing plate 22 are driven to rise by the third cylinder 24. Then the drive gear 19 is driven to rotate by the speed reducer motor 18. The drive gear 19 drives the driven gear 20 to rotate. The driven gear 20 drives the rotating rod 21 to rotate. The rotating rod 21 drives the pressing plate 22 to rotate above the upper die 8. Then the pressing plate 22 is driven to descend and contact the top of the upper die 8 by the third cylinder 24. The upper die 8 and the lower die 2 are tightly attached under the pressing of the pressing plate 22, which helps to avoid the phenomenon of separation of the upper die 8 and the lower die 2 under the action of the colloid injection force, and helps to avoid the phenomenon of glue leakage when the equipment processes products.

[0036] The inner walls on both sides of the two recesses 15 are provided with sliding grooves 25. The two sliding grooves 25 are provided with multi-section expansion plates 16. The top ends of the two multi-section expansion plates 16 on the same side are fixedly connected with the opposite side of the mounting seat 17 on the same side. The bottom end of the multi-section expansion plate 16 is fixedly installed with a counterweight 23. When the mounting seat 17 on the same side is driven to rise and fall by the third cylinder 24, the mounting seat 17 with the multi-section expansion plate 16 on the same side slides in the sliding groove 25 on the same side. The bottom end of the multi-section expansion plate 16 is fixedly installed with a counterweight 23. When the mounting seat 17 with the multi-section expansion plate 16 rises and falls, the multi-section expansion plate 16 stretches and contracts under the pulling force of the counterweight 23. Through the cooperation of the multi-section expansion plate 16 and the counterweight 23, the mounting seat 17 can be limited and stabilized, which is beneficial to the stability of the mounting seat 17 rising and falling.

[0037] The ejection assembly is arranged in the mold cavity 3, and the ejection assembly comprises an ejection plate 4 which is slidingly arranged in the mold cavity 3; the bottom end of the base 1 is fixedly provided with a mounting frame 7; the bottom end inner wall of the mounting frame 7 is fixedly provided with a first air cylinder 6; the piston shaft of the first air cylinder 6 slidingly penetrates through the base 1 and extends into the mold cavity 3; the end portion of the piston shaft of the first air cylinder 6 is fixedly connected with the bottom end of the ejection plate 4; the bottom end inner wall of the mold cavity 3 is provided with a receiving groove matched with the ejection plate 4; when product processing is completed, the ejection plate 4 can be driven to rise by the first air cylinder 6, the product is driven to rise and separate from the mold cavity 3 by the ejection plate 4, and thus the demolding effect is achieved, the subsequent material taking of the staff is facilitated, the bottom end inner wall of the mold cavity 3 is provided with the receiving groove matched with the ejection plate 4, the ejection plate 4 is received, the top of the ejection plate 4 is flush with the bottom end inner wall of the mold cavity 3, and the ejection plate 4 is prevented from affecting the product processing.

[0038] The implementation principle of the embodiment of the utility model is as follows: when the equipment is used, the upper die 8 is driven to descend by the second air cylinder 13, the upper die 8 and the lower die 2 are attached, and the stable assembly is arranged between the upper die 8 and the base 1, the stability of the upper die 8 during the lifting is facilitated, the phenomenon that the upper die 8 and the lower die 2 are attached is prevented, the upper die 8 is pressed by the pressing assembly when the upper die 8 and the lower die 2 are attached, the upper die 8 and the lower die 2 are closely attached, the phenomenon that the upper die 8 and the lower die 2 are separated under the action of the glue injection force is prevented, the phenomenon that the equipment processing product leaks glue is prevented, the processing quality of the product is facilitated, the upper die 8 is driven to rise by the second air cylinder 13 when the product processing is completed, and then the product is ejected from the mold cavity 3 by the ejection assembly, and thus the demolding effect is achieved, and the subsequent material taking of the staff is facilitated.

[0039] The above are preferable embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A leak-proof injection mold, characterized in that: The system includes a base (1), a lower mold (2) at the top of the base (1), a mold cavity (3) at the top of the lower mold (2), a top plate (12) above the base (1), four symmetrically distributed columns (5) fixedly installed between the top plate (12) and the base (1), an upper mold (8) below the top plate (12), a second cylinder (13) fixedly installed at the top of the top plate (12), the piston shaft of the second cylinder (13) slidingly passing through the top plate (12) and fixedly connected to the top of the upper mold (8), a stabilizing component between the upper mold (8) and the base (1), two symmetrically distributed grooves (15) at the top of the base (1), a pressing component in each of the two grooves (15), and an ejection component in the mold cavity (3).

2. The leak-proof injection mold according to claim 1, characterized in that: The stabilizing assembly includes four stabilizing rods (10) fixedly installed between the top plate (12) and the base (1). Each stabilizing rod (10) has a slidably mounted stabilizing block (11) on its side wall. Each stabilizing block (11) has one side fixedly connected to the side opposite to the upper mold (8).

3. The leak-proof injection mold according to claim 1, characterized in that: The pressing assembly includes a third cylinder (24) fixedly installed on the inner wall of the bottom end of the groove (15). The piston shaft ends of the two third cylinders (24) are fixedly installed with mounting seats (17). The top ends of the two mounting seats (17) are rotatably installed with rotating rods (21). The top ends of the two rotating rods (21) are fixedly installed with pressing plates (22). The bottom ends of the two pressing plates (22) are fixedly installed with rubber pads. The lower side walls of the two rotating rods (21) are fixedly fitted with driven gears (20). The top ends of the two mounting seats (17) are fixedly installed with reduction motors (18). The output shaft side walls of the two reduction motors (18) are fixedly fitted with drive gears (19). The drive gears (19) mesh with the driven gears (20) on the same side.

4. The leak-proof injection mold according to claim 3, characterized in that: The inner walls of both grooves (15) are provided with sliding grooves (25), and each of the two sliding grooves (25) is provided with multiple telescopic plates (16). The tops of the two multi-section telescopic plates (16) on the same side are fixedly connected to the opposite side of the mounting base (17) on the same side. The bottom of each multi-section telescopic plate (16) is fixedly installed with a counterweight (23).

5. The leak-proof injection mold according to claim 1, characterized in that: The ejection assembly includes an ejection plate (4) that is slidably installed in the mold cavity (3). A mounting bracket (7) is fixedly installed at the bottom end of the base (1). A first cylinder (6) is fixedly installed on the inner wall of the bottom end of the mounting bracket (7). The piston shaft of the first cylinder (6) slides through the base (1) and extends into the mold cavity (3). The end of the piston shaft of the first cylinder (6) is fixedly connected to the bottom end of the ejection plate (4). A receiving groove matching the ejection plate (4) is opened on the inner wall of the bottom end of the mold cavity (3).

6. The leak-proof injection mold according to claim 1, characterized in that: The upper mold (8) has four symmetrically distributed positioning blocks (9) fixedly installed at its bottom end, and the lower mold (2) has positioning grooves (14) on both sides that match the positioning blocks (9).

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