A type of injection mold for car water bottles with angled core pulling

Abstract

This invention provides an injection mold for a car water bottle with a slanted core-pulling mechanism, comprising an upper mold and a lower mold. A core is provided within the lower mold, and the core cooperates with the upper mold cavity to form the molding cavity of the car water bottle. The slanted core-pulling mechanism includes a cylinder mounted on the lower mold, a slanted slider connected to the cylinder piston rod, and a core rod installed within the slanted slider and extending outward at one end. A first side core mechanism includes a first side slider slidably disposed on the lower mold and a first slanted guide post mounted on the upper mold and extending into the first side slider. A second side core mechanism includes a second side slider slidably disposed on the lower mold and a second slanted guide post mounted on the upper mold and extending into the second side slider. A third side core mechanism includes a third side slider slidably disposed on the lower mold and a third slanted guide post mounted on the upper mold and extending into the third side slider. This invention can complete the molding of complex features of a car water bottle in one operation, with a simple mold structure and easy production and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically relating to an injection mold for a car water bottle with a slanted core pull. Background Technology

[0002] A mold generally consists of two parts: an upper mold and a lower mold, which can be separated or joined together. When separated, the workpiece is removed; when joined together, the blank is injected into the mold cavity to form the shape.

[0003] Reference Figure 1 This is a car water bottle with an inclined spout and a through hole penetrating its inner cavity. In existing mold designs, this through hole requires subsequent machining, increasing production costs. Furthermore, the outer wall of the car water bottle has three special structures, making the existing mold design complex and difficult to process and maintain. Moreover, the inner cavity of the car water bottle is a flow-through structure with through grooves on the connecting ribs, requiring mold release considerations in the mold design. Additionally, after molding, the molded surface often exhibits deformation and other defects due to the ejector pins. These technical problems urgently need to be solved by those skilled in the art. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a car water bottle injection mold with inclined core pulling, which can complete the complex feature molding of the car water bottle in one go, avoid secondary processing, and the mold structure is simple and easy to produce and maintain.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A car water bottle injection mold with a slanted core pull includes an openable upper mold and a lower mold. A mold core is provided in the lower mold, and an upper mold cavity is provided in the upper mold. The mold core and the upper mold cavity cooperate to form the molding cavity of the car water bottle. The molding cavity is connected to the nozzle.

[0007] A cylindrical insert is disposed within the central hole of the mold core;

[0008] The inclined core-pulling mechanism is arranged at an angle to the molding cavity of the product. It includes a cylinder mounted on the lower mold, an inclined slider connected to the piston rod of the cylinder, and a core rod installed in the inclined slider with one end extending outward. The inclined slider is a split structure. The cylinder can drive the piston rod to act on the inclined slider and extend the core rod into the cylindrical insert.

[0009] The first side core mechanism, which is arranged perpendicularly to the molding cavity of the product, includes a first side slider slidably disposed on the lower mold and a first inclined guide post installed on the upper mold and extending into the first side slider.

[0010] The second side core mechanism, which is arranged perpendicularly to the molding cavity of the product, includes a second side slider that is slidably disposed on the lower mold, and a second inclined guide post that is installed on the upper mold and extends into the second side slider;

[0011] The third side core mechanism is arranged at an angle to the product's molding cavity, and includes a third side slider that is slidably disposed on the lower mold, and a third inclined guide post that is mounted on the upper mold and extends into the third side slider.

[0012] In a preferred embodiment of this utility model, the end face of the first side slider facing the mold core is configured as a first type end face, which matches the outer type face of the car water bottle;

[0013] The end face of the second side slider facing the mold core is set as a second type end face, which matches the outer surface of the car water bottle;

[0014] The end face of the third side slider facing the mold core is set as the third cavity surface, which matches the outer surface of the car water bottle.

[0015] In a preferred embodiment of the present invention, a plurality of inclined ejector rods are further arranged inside the mold core, and the plurality of inclined ejector rods extend to the upper ejector plate and are slidably connected to the inclined ejector seat on the upper ejector plate.

[0016] In a preferred embodiment of the present invention, a plurality of irregularly shaped ejector pins are further included. The ejector pins are vertically mounted on the upper ejector plate, and the plurality of irregularly shaped ejector pins are evenly distributed inside the mold core.

[0017] In a preferred embodiment of the present invention, the inclined slider includes a slider body, an insert and a driving block arranged in sequence. The end face of the slider body facing the mold core is set as a fourth cavity surface. The core rod is installed in the insert and extends to the outer end of the slider body. The driving block is connected to a cylinder.

[0018] In a preferred embodiment of the present invention, a groove for placing a slanted slider, a first side slider, a second side slider, and a third side slider is provided in the upper mold.

[0019] In a preferred embodiment of the present invention, an exhaust groove is provided on the periphery of the upper model cavity. The exhaust groove includes an annular exhaust groove extending outward along the periphery of the upper model cavity, and a plurality of strip-shaped exhaust grooves arranged between the annular exhaust groove and the upper model cavity.

[0020] In a preferred embodiment of this utility model, a plurality of wear-resistant blocks are arranged on the mating surfaces of the lower mold and the upper mold.

[0021] Beneficial effects:

[0022] This utility model discloses an injection mold for a car water bottle with a slanted core-pulling mechanism. The slanted core-pulling mechanism uses a cylinder-driven split slanted slider. The core rod is inserted into a cylindrical insert to form a through hole for the spout. The cylinder stroke is controllable, ensuring precise positioning of the core rod and the slanted slider, and guaranteeing the molding quality of the spout. The split slanted slider design reduces the overall processing and maintenance difficulty. The slider body, insert, and drive block can be optimized individually to improve the fitting accuracy.

[0023] This utility model features three sets of side core mechanisms linked by their respective inclined guide pillars to ensure accurate positioning of the side sliders; the placement groove design of the upper mold ensures accurate guidance when the side sliders move, while reducing frictional damage between them, improving the molding quality of the plastic parts, ensuring reliable movement, and being simple and practical.

[0024] This utility model designs a composite ejection system of inclined ejector rod and irregular ejector pin. The inclined ejector rod ejects along the inclined direction and disengages from the inner cavity rib, while the irregular ejector pin ejects vertically, balancing the overall force and reducing the product defect rate.

[0025] This utility model discloses an injection mold for a car water bottle with a slanted core pulling mechanism, which can complete the molding of complex features of a car water bottle in one go, avoiding secondary processing. The mold has a simple structure, is easy to produce and maintain, and enables high-quality, high-efficiency, and low-cost production of complex car water bottles. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the car water bottle described in the background art of this utility model;

[0027] Figure 2 A schematic diagram of the structure of a car water bottle injection mold with a slanted core pull provided by this utility model;

[0028] Figure 3 A partial top view of the structure of a car water bottle injection mold (lower mold) with a slanted core pull provided by this utility model;

[0029] Figure 4 A partial structural schematic diagram of a car water bottle injection mold (lower mold) with a slanted core pull provided for this utility model;

[0030] Figure 5 A partial structural schematic diagram of an injection mold (upper mold) for a car water bottle with a slanted core pull provided by this utility model;

[0031] Figure 6 This is a schematic diagram of the oblique core-pulling mechanism described in this utility model;

[0032] Figure 7 An exploded view of a portion of the structure of a car water bottle injection mold (lower mold) with a slanted core pull provided by this utility model;

[0033] Figure 8This is a half-sectional view of the inclined slider described in this utility model.

[0034] In the diagram: 1. Upper mold, 11. Upper mold cavity, 12. Venting groove;

[0035] 2. Lower mold;

[0036] 3 mold cores;

[0037] 4 cylindrical inserts;

[0038] 5. Inclined core pulling mechanism, 51. Cylinder, 52. Inclined slider, 521. Slider body, 522. Insert, 523. Drive block, 53. Core rod;

[0039] 6 First side core mechanism, 61 First side slider, 62 First inclined guide post;

[0040] 7 Second side core mechanism, 71 Second side slider, 72 Second inclined guide post;

[0041] 8. Third side core mechanism; 81. Third side slider; 82. Third inclined guide post;

[0042] 9. Inclined top rod. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0044] like Figure 2-6 As shown, the present invention provides an injection mold for a car water bottle with a slanted core, including an upper mold 1 and a lower mold 2 that can be opened and closed. A mold core 3 is provided in the lower mold 2, and an upper mold cavity 11 is provided in the upper mold 1. The mold core 3 and the upper mold cavity 11 cooperate to form the molding cavity of the car water bottle, and the molding cavity is connected to the nozzle.

[0045] Cylindrical insert 4 is disposed in the central hole of mold core 3;

[0046] The inclined core-pulling mechanism 5 is arranged with a horizontal deflection angle relative to the molding cavity of the product. It includes a cylinder 51 mounted on the lower mold 2, an inclined slider 52 connected to the piston rod of the cylinder 51, and a core rod 53 installed in the inclined slider 52 with one end extending outward. The inclined slider 52 is a split structure. The cylinder 51 can drive the piston rod to act on the inclined slider 52 and cause the core rod 53 to extend into the cylindrical insert 4. The movement direction of the core rod 53 is inclined relative to the X direction, and the inclination angle is 24°.

[0047] The first side core mechanism 6 is arranged perpendicularly to the molding cavity of the product. It includes a first side slider 61 that is slidably disposed on the lower mold 2, and a first inclined guide post 62 that is installed on the upper mold 1 and extends into the first side slider 61. The end face of the first side slider 61 facing the mold core 3 is set as a first molded end face, which matches the outer molded surface of the car water bottle.

[0048] The second side core mechanism 7 is arranged perpendicularly to the molding cavity of the product. It includes a second side slider 71 that is slidably disposed on the lower mold 2, and a second inclined guide post 72 that is installed on the upper mold 1 and extends into the second side slider 71. The end face of the second side slider 71 facing the mold core 3 is configured as a second molded end face, which matches the outer molded surface of the car water bottle.

[0049] The third side core mechanism 8 is arranged with a horizontal deflection angle relative to the product's molding cavity. It includes a third side slider 81 that is slidably disposed on the lower mold 2, and a third inclined guide post 82 that is mounted on the upper mold 1 and extends into the third side slider 81. The end face of the third side slider 81 facing the mold core 3 is set as the third cavity surface, which matches the outer surface of the car water bottle. The movement direction of the third side slider 81 is inclined relative to the X direction, and the inclination angle is 130°.

[0050] The working principle and beneficial effects of the above embodiments are as follows:

[0051] After the upper mold 1 and lower mold 2 of this utility model are closed, the mold core 3 and the upper mold cavity 11 form a complete molding cavity. The cylinder 51 of the inclined core pulling mechanism 5 pushes the inclined slider 52, so that the core rod 53 is inserted into the cylindrical insert 4 to form the product spout through hole structure. At the same time, the inclined slider 52 cooperates with the structure of the product spout.

[0052] The three sets of side core mechanisms are linked by their respective inclined guide pillars. The first side core mechanism 6 and the second side core mechanism 7 move vertically to form the outer wall features of the product, and the third side core mechanism 8 moves obliquely to form the outer wall structure of the product.

[0053] In the mold opening and core pulling state, the car water bottle is formed on the mold core 3. When the upper mold 1 is displaced, the first and second inclined guide pillars 62 and 72 push the side sliders 61 and 71 to exit vertically, and the third inclined guide pillar 82 drives the third inclined slider 81 to be pulled out obliquely.

[0054] The piston rod of cylinder 51 retracts, and the inclined slider 52 drives the core rod 53 to be pulled out from the product and detached from the molded product;

[0055] This utility model designs a cylinder 51-driven inclined slider 52 that achieves time-series linkage with the inclined guide post mechanical core pulling. The stroke control of the cylinder 51 ensures that the core rod 53 is accurately pulled out after the melt solidifies. The multi-angle composite core pulling structure can form complex car water bottle shapes, optimize the production process, reduce the molding cycle, improve production efficiency, ensure product surface quality, reduce molding defects, and improve the overall quality of the product.

[0056] In one embodiment,

[0057] like Figure 7 As shown, a plurality of inclined ejector rods 9 are also arranged in the mold core 3, and the plurality of inclined ejector rods 9 extend to the upper ejector plate and slide to be connected to the inclined ejector seat on the upper ejector plate.

[0058] It also includes several irregular ejector pins, which are vertically mounted on the upper ejector plate and are evenly distributed inside the mold core 3;

[0059] The novel irregular ejector pin is arranged vertically on the ejector plate, forming a composite product ejection scheme of inclined ejection and straight ejection with the inclined ejector rod 9. The ejection force is evenly distributed on the entire product, avoiding excessive local force that could cause product deformation or warping.

[0060] Specifically, after the upper mold 1 is displaced into position, the injection molding machine ejector pushes the upper ejector plate, and the upper ejector plate pushes the special-shaped ejector pin and the inclined ejector rod 9 to eject the molded product outward. The inclined ejector rod is designed with through grooves on the connecting ribs in the inner cavity of the molded product, so that the car water bottle forms a circulating inner cavity structure.

[0061] In one embodiment,

[0062] like Figure 8 As shown, the inclined slider 52 includes a slider body 521, an insert 522 and a drive block 523 arranged in sequence. The end face of the slider body 521 facing the mold core 3 is set as the fourth cavity surface. The core rod 53 is installed in the insert 522 and extends to the outer end of the slider body 521. The drive block 523 is connected to the cylinder 51.

[0063] The slider body 521 of this utility model participates in the molding of the product. The core rod 53 is installed in the insert 522 and extends to the outer end of the slider body 521. The insert 522 plays the role of fixing and supporting the core rod 53. The drive block 523 is connected to the cylinder 51 and is responsible for transmitting the driving force of the cylinder 51 to the entire inclined slider 52.

[0064] The aforementioned inclined slider 52 adopts a split structure, which has higher machining accuracy and is easy to replace and maintain individually.

[0065] In one embodiment,

[0066] The upper mold 1 is provided with a slot for placing the inclined slider 52, the first side slider 61, the second side slider 71 and the third side slider 81.

[0067] The placement groove provides precise motion guidance for each slider, ensuring that the slider can move stably and accurately during the mold opening and closing process, thereby improving the molding accuracy of the mold.

[0068] In one embodiment,

[0069] A venting groove 12 is provided on the periphery of the upper mold cavity 11. The venting groove 12 includes an annular venting groove extending outward along the periphery of the upper mold cavity 11, and a number of strip-shaped venting grooves arranged between the annular venting groove and the upper mold cavity 11. The groove depth of the contact end of the strip-shaped venting groove with the upper mold cavity 11 is 0.015mm, which can effectively vent the air without affecting the filling of the melt and avoid the generation of flash or burrs.

[0070] Several strip-shaped venting grooves are arranged between the annular venting groove and the upper mold cavity 11 to guide the gas in the cavity to the annular venting groove. The venting groove is located on the periphery of the upper mold cavity 11 to ensure that the gas in the cavity can be smoothly discharged during the injection molding process, thus ensuring the product molding quality.

[0071] In one embodiment,

[0072] Several wear-resistant blocks are arranged on the mating surface of the lower mold 2 and the upper mold 1, which can effectively reduce the wear of the mold during the opening and closing process.

[0073] In one embodiment,

[0074] The first type end face, the second type end face, the third type end face and the fourth type end face mentioned above are assembled with the upper mold cavity 11 to form a complete outer surface molding cavity for the product.

[0075] In summary:

[0076] This utility model discloses an injection mold for a car water bottle with a slanted core-pulling mechanism. The slanted core-pulling mechanism uses a cylinder-driven split slanted slider. The core rod is inserted into a cylindrical insert to form a through hole for the spout. The cylinder stroke is controllable, ensuring precise positioning of the core rod and the slanted slider, and guaranteeing the molding quality of the spout. The split slanted slider design reduces the overall processing and maintenance difficulty. The slider body, insert, and drive block can be optimized individually to improve the fitting accuracy.

[0077] This utility model features three sets of side core mechanisms linked by their respective inclined guide pillars to ensure accurate positioning of the side sliders; the placement groove design of the upper mold ensures accurate guidance when the side sliders move, while reducing frictional damage between them, improving the molding quality of the plastic parts, ensuring reliable movement, and being simple and practical.

[0078] This utility model designs a composite ejection system of inclined ejector rod and irregular ejector pin. The inclined ejector rod ejects along the inclined direction and disengages from the inner cavity rib, while the irregular ejector pin ejects vertically, balancing the overall force and reducing the product defect rate.

[0079] This utility model discloses an injection mold for car water bottles with a slanted core pulling mechanism, which can complete the molding of complex features of car water bottles in one go, avoiding secondary processing and realizing high-quality, high-efficiency, and low-cost production of complex car water bottles.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The terms "front," "back," "left," and "right" used in the text are not specific and are mainly for more intuitive illustration of the technical solution, and do not constitute a limitation. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made according to the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A water bottle injection mold with inclined core for an automobile, characterized by: It includes an upper mold (1) and a lower mold (2) that can be opened and closed. A mold core (3) is provided in the lower mold (2), and an upper mold cavity (11) is provided in the upper mold (1). The mold core (3) and the upper mold cavity (11) cooperate to form the molding cavity of the car water bottle. The molding cavity is connected to the nozzle. A cylindrical insert (4) is disposed in the central hole of the mold core (3); The inclined core-pulling mechanism (5) is arranged at an angle to the molding cavity of the product. It includes a cylinder (51) installed on the lower mold (2), an inclined slider (52) connected to the piston rod of the cylinder (51), and a core rod (53) installed in the inclined slider (52) and extending outward at one end. The inclined slider (52) is a split structure. The cylinder (51) can drive the piston rod to act on the inclined slider (52) and make the core rod (53) extend into the cylindrical insert (4). The first side core mechanism (6) is arranged perpendicular to the molding cavity of the product, including a first side slider (61) slidably disposed on the lower mold (2) and a first inclined guide post (62) installed on the upper mold (1) and extending into the first side slider (61); The second side core mechanism (7) is arranged perpendicularly to the molding cavity of the product, including a second side slider (71) slidably disposed on the lower mold (2) and a second inclined guide post (72) installed on the upper mold (1) and extending into the second side slider (71); The third side core mechanism (8) is arranged at an angle to the molding cavity of the product, including a third side slider (81) slidably disposed on the lower mold (2) and a third inclined guide post (82) mounted on the upper mold (1) and extending into the third side slider (81).

2. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: The end face of the first side slider (61) facing the mold core (3) is set as a first type end face, which matches the outer surface of the car water bottle; The end face of the second side slider (71) facing the mold core (3) is set as a second type end face, which matches the outer surface of the car water bottle; The end face of the third side slider (81) facing the mold core (3) is set as the third cavity surface, which matches the outer surface of the car water bottle.

3. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: Multiple inclined ejector rods (9) are also arranged inside the mold core (3), and the multiple inclined ejector rods (9) extend to the upper ejector plate and are slidably connected to the inclined ejector seat on the upper ejector plate.

4. The injection mold for a car water bottle with a slanted core-pulling mechanism according to claim 1, characterized in that: It also includes several irregular ejector pins, which are vertically mounted on the upper ejector plate and are evenly distributed in the mold core (3).

5. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: The inclined slider (52) includes a slider body (521), an insert (522) and a drive block (523) arranged in sequence. The end face of the slider body (521) facing the mold core (3) is set as the fourth cavity surface. The core rod (53) is installed in the insert (522) and extends to the outer end of the slider body (521). The drive block (523) is connected to the cylinder (51).

6. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: The upper mold (1) has slots for placing the inclined slider (52), the first side slider (61), the second side slider (71) and the third side slider (81).

7. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: An exhaust groove (12) is provided on the periphery of the upper model cavity (11). The exhaust groove (12) includes an annular exhaust groove extending outward along the periphery of the upper model cavity (11) and a plurality of strip-shaped exhaust grooves arranged between the annular exhaust groove and the upper model cavity (11).

8. The automobile water bottle injection mold with inclined core pulling according to claim 1, characterized in that: Several wear-resistant blocks are arranged on the mating surface of the lower mold (2) and the upper mold (1).

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