Multi-insert-pin forming injection mold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a multi-insert-pin forming injection mold which is used for injecting raw materials and forming injection molding parts and comprises a movable mold plate and a fixed mold plate, and a cavity is formed between the interiors of the movable mold plate and the fixed mold plate. The movable mold plate sequentially comprises a connecting plate, a guide column, a sliding block combination and a plurality of insert pins from top to bottom, the guide column is connected to the inner side of the connecting plate, the sliding block combination comprises a first sliding block and a second sliding block, a first guide sliding groove is formed in the first sliding block, and the guide column is obliquely inserted into the first guide sliding groove so as to drive the first sliding block to advance or retreat on the fixed mold plate. And the first sliding block is elastically connected with the second sliding block so as to drive the second sliding block on the fixed mold plate to advance or retreat. One side of the first sliding block is connected with an insert pin, and the other end of the insert pin penetrates into the cavity. According to the mold structure, injection molding is completed through two times of slide for a molded part in a specific shape, the opening and closing process of the mold can be achieved through simple operation, the operation difficulty and the skill requirement are reduced, and the precision of the injection molded part is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, in particular to a multi-pin molding injection mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, precise dimensions, easy product replacement, and the ability to form parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as complex-shaped products.

[0003] Many injection molded parts have complex structures, very precise requirements for molds, and low production efficiency. Therefore, it is necessary to design a molding mold for complex structures. Utility Model Content

[0004] The utility model aims to provide a multi-pin molding injection mold, aiming to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a multi-pin molding injection mold for injecting raw materials and molding injection molded parts, including a movable mold plate and a fixed mold plate. A cavity is formed between the movable mold plate and the fixed mold plate, and a pouring port is provided at the upper end of the movable mold plate, which is connected to the mold cavity; a cooling reaction zone is provided in the mold cavity. The movable mold plate includes a connecting plate, a guide column, a slider assembly and a plurality of pins from top to bottom, the guide column is connected to the inner side of the connecting plate, the slider assembly includes a first slider and a second slider, a first guide groove is formed in the first slider, and the guide column is obliquely inserted into the first guide groove to drive the first slider to move forward or backward on the fixed mold plate. The first slider is elastically connected to the second slider to drive the second slider on the fixed mold plate to move forward or backward; one side of the first slider is connected to the pin, and the other end of the pin is inserted into the mold cavity.

[0006] Furthermore, two groups of symmetrical abutment plates are provided at the upper end of the second sliding block; the first sliding block moves forward and backward between the limit positions of the two abutment plates.

[0007] Furthermore, a communication port is provided between the connecting plate and the fixed mold plate, and guide plates are provided on both sides of the communication port, and the guide plates sequentially guide the sliding block assembly to enter and exit from the communication port.

[0008] Furthermore, a blocking slider is provided on one side of the slider combination, the first slider is in contact with the blocking slider, and a straight limit plate is provided between the second slider and the blocking slider for preventing the second slider from following the traction movement of the first slider.

[0009] Furthermore, the first slider is located on the second slider, and the first slider is connected to the second slider via a buffer spring, and the buffer spring is provided in two groups and is arranged up and down.

[0010] Furthermore, the bottom end of the guide column is arranged to be inclined outward.

[0011] Furthermore, the bottom of the second sliding block is recessed inward to form a first groove; the corresponding position of the upper end of the fixed template is recessed inward to form a second groove, and a protrusion is provided on the second groove, which is higher than the highest end of the second groove; the protrusion abuts against the inner side wall of the second groove.

[0012] Furthermore, the movable mold plate is provided with a plurality of cooling pipes running through the inside thereof, which are used to make the mold cavity cool uniformly and promote the raw material forming. The cooling reaction zone is located in the mold cavity, which is used to make the mold cavity cool uniformly and promote the raw material forming.

[0013] Furthermore, an upper fixed plate is provided at the upper end of the movable template, a lower fixed plate is provided at the lower end of the fixed template, and a pouring port is provided on the upper fixed plate and is connected to the mold cavity.

[0014] The above one or more technical solutions in the multi-pin molding injection mold provided by the embodiment of the utility model have at least the following technical effects:

[0015] In this design, the raw material is cooled and formed after entering the pouring port. When demolding, the connecting plate is first lifted, and the connecting plate drives the inclined guide column to move upward. The guide column is transmitted to the first slider to slide outward to pull out the inlay pin on one side of the first slider, completing the first position. Since the first slider is elastically connected to the second slider, the elastic potential energy between the first slider and the second slider reaches the maximum after the inlay pin is pulled out, driving the second slider to slide outward to complete the second position. The limit of the slider combination on the cavity is released so that the injection molded part in the cavity can be detached and taken out. This mold structure is designed to complete the injection molding of molded parts of specific shapes through two positions. The opening and closing of the mold, the movement of the inlay pin and the injection molding process can be realized through simple operations, which reduces the difficulty of operation and skill requirements and improves the precision of the injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A structural diagram of a multi-pin molding injection mold provided in an embodiment of the utility model.

[0018] Figure 2 A cross-sectional view of a multi-pin molding injection mold provided in an embodiment of the utility model.

[0019] Figure 3 for Figure 2 Partial cross-sectional view A.

[0020] Figure 4 for Figure 2 Partial cross-sectional view B.

[0021] Figure 5 A partial view of a multi-pin molding injection mold provided in an embodiment of the utility model.

[0022] Figure 6 A structural diagram of an injection molded part of a multi-pin molding injection mold provided in an embodiment of the utility model.

[0023] Description of main reference numerals: 100, movable template; 110, connecting plate; 120, guide column; 130, slider assembly; 131, first slider; 132, second slider; 133, first guide groove; 140, inlay pin; 150, abutment plate;

[0024] 200, fixed template; 210, cavity; 220, pouring port;

[0025] 300, communication port; 310, guide plate;

[0026] 400, blocking slider; 410, straight limit plate; 420, buffer spring;

[0027] 500, first groove; 510, second groove; 520, protruding member;

[0028] 600, cooling pipeline; 610, cooling reaction zone;

[0029] 700, upper fixing plate; 710, lower fixing plate;

[0030] 800. Injection molded parts. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention in detail. Figures 1 to 6 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 6 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In the embodiment of the utility model, this case provides a multi-pin molding injection mold, which is used to inject raw materials and mold an injection molded part 800, including a movable template 100 and a fixed template 200. A cavity 210 is formed between the movable template 100 and the fixed template 200. A pouring port 220 is provided at the upper end of the movable template 100, and the pouring port 220 is connected to the cavity 210; a cooling reaction zone 610 is provided in the cavity 210. The movable template 100 includes a connecting plate 110, a guide column 120, a slider assembly 130 and a plurality of pins 140 from top to bottom. The guide column 120 is connected to the inner side of the connecting plate 110. The slider assembly 130 includes a first slider 131 and a second slider 132. The first slider 131 is provided with a first guide slot 133. The guide column 120 is obliquely inserted into the first guide slot 133 to drive the first slider 131 to move forward or backward on the fixed template 200. The first slider 131 is elastically connected to the second slider 132 to drive the second slider 132 on the fixed mold plate 200 to move forward or backward; one side of the first slider 131 is connected to the inserting pin 140 , and the other end of the inserting pin 140 penetrates into the mold cavity 210 .

[0036] Specifically, the raw material enters the pouring port 220 and is cooled and formed. When opening and closing, the connecting plate 110 is first lifted, and the connecting plate 110 drives the inclined guide column 120 to move upward. The guide column 120 is transmitted to the first slider 131 to slide outward, so as to pull out the insert pin 140 on one side of the first slider 131, and complete the first position. Since the first slider 131 is elastically connected to the second slider 132, the elastic potential energy between the first slider 131 and the second slider 132 reaches the maximum after the insert pin 140 is pulled out, driving the second slider 132 to slide outward, and completing the second position; the limit of the slider assembly 130 on the cavity 210 is released so that the injection molded part 800 in the cavity 210 can be detached and taken out. This mold structure is for a molded part of a specific shape to complete injection molding through two positions. The opening and closing of the mold, the movement of the insert pin 140 and the injection molding process can be realized through simple operations, which reduces the difficulty of operation and skill requirements and improves the precision of the injection molded part 800.

[0037] In another embodiment of the utility model, two sets of symmetrical abutment plates 150 are provided at the upper end of the second slider 132, and the first slider 131 moves forward and backward between the limits of the two abutment plates 150. Specifically, it is necessary to ensure that the first slider 131 runs smoothly on the second slider 132, and the two abutment plates 150 are symmetrically provided to guide the first slider 131 to move forward and backward in the limit direction to ensure the stability of the mold.

[0038] In another embodiment of the utility model, a connecting port 300 is provided between the connecting plate 110 and the fixed mold plate 200, and guide plates 310 are provided on both sides of the connecting port 300. The guide plates 310 guide the slider assembly 130 to enter and exit the connecting port 300 in turn, and it is necessary to ensure that the slider assembly 130 can operate smoothly.

[0039] In another embodiment of the utility model, a blocking slider 400 is provided on one side of the slider assembly 130, the first slider 131 abuts against the blocking slider 400, and a straight limit plate 410 is provided between the second slider 132 and the blocking slider 400 for blocking the second slider 132 from following the pulling movement of the first slider 131. The first slider 131 is located on the second slider 132, and the first slider 131 is connected to the second slider 132 through a buffer spring 420, and the buffer spring 420 is provided in two groups and is arranged up and down.

[0040] Specifically, the blocking slider 400 is used to fill the uneven surface. When the mold is opened, the guide column 120 drives the first slider 131 to retreat, the straight limit plate 410 presses against the second slider 132 to remain motionless, and the first slider 131 continues to push the blocking slider 400 to retreat, realizing the first position. When the insert pin 140 is pulled out of the cavity 210, the elastic potential energy of the spring is just greater than the blocking force of the straight limit plate 410, and the straight limit plate 410 is disengaged, so that the second slider 132 retreats backwards under the pulling force of the spring, contacts the limit of the injection molded part 800, realizes the second position, and completes the mold opening action.

[0041] In another embodiment of the utility model, the bottom end of the guide column 120 is tilted outward, the connecting plate 110 is lifted upward by force, and the guide column 120 is pulled upward. Since the guide column 120 is tilted outward, the upward movement of the guide column 120 will give the first slider 131 an outward thrust, so that the insert pin 140 is pulled out.

[0042] In another embodiment of the utility model, the bottom of the second slider 132 is recessed inward to form a first groove 500; the corresponding position of the upper end of the fixed mold plate 200 is recessed inward to form a second groove 510, and a protrusion 520 is provided on the second groove 510, and the protrusion 520 is higher than the highest end of the second groove 510; the protrusion 520 abuts against the inner side wall of the second groove 510, and the length of the first groove 500 is longer than the second groove 510. Specifically, in order to prevent the second slider 132 from detaching and sliding out of the mold, a protrusion 520 is provided between the first groove 500 and the second groove 510, and the second slider 132 moves in the distance between the first groove 500 and the second groove 510 to prevent detachment and enhance stability.

[0043] In another embodiment of the utility model, the movable mold plate 100 is provided with a plurality of cooling pipes 600 running through the interior thereof, for uniformly cooling the mold cavity 210 to promote the molding of the raw materials; the cooling reaction zone 610 is located in the mold cavity 210, for uniformly cooling the mold cavity 210 to promote the molding of the raw materials.

[0044] In another embodiment of the utility model, an upper fixing plate 700 is provided at the upper end of the movable mold plate 100, and a lower fixing plate 710 is provided at the lower end of the fixed mold plate 200. The upper fixing plate 700 is provided with a pouring port 220 and communicates with the mold cavity 210. Specifically, the upper fixing plate 700 and the lower fixing plate 710 are controlled by an external force, and the upper fixing plate 700 is manually or electrically lifted or dropped to realize the opening and closing action.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-pin molding injection mold, used for injecting raw materials to form an injection molded part (800), comprising a movable mold plate (100) and a fixed mold plate (200); a mold cavity (210) is formed between the movable mold plate (100) and the fixed mold plate (200); a pouring port (220) is provided at the upper end of the movable mold plate (100), and the pouring port (220) is communicated with the mold cavity (210); a cooling reaction zone (610) is provided in the mold cavity (210), characterized in that: The movable template (100) includes, from top to bottom, a connecting plate (110), a guide column (120), a slider assembly (130) and a plurality of inserting pins (140); the guide column (120) is connected to the inner side of the connecting plate (110); the slider assembly (130) includes a first slider (131) and a second slider (132); a first guide groove (133) is formed in the first slider (131); the guide column (120) is obliquely inserted into the first guide groove (133) to drive the first slider (131) to move forward or backward on the fixed template (200); the first slider (131) is elastically connected to the second slider (132) to drive the second slider (132) to move forward or backward on the fixed template (200); one side of the first slider (131) is connected to the inserting pin (140), and the other end of the inserting pin (140) penetrates into the cavity (210).

2. The multi-pin molding injection mold according to claim 1, characterized in that: Two groups of symmetrical abutment plates (150) are provided at the upper end of the second sliding block (132); the first sliding block (131) moves forward and backward between the limit positions of the two abutment plates (150).

3. The multi-pin molding injection mold according to claim 1, characterized in that: A communication opening (300) is provided between the connecting plate (110) and the fixed mold plate (200), and guide plates (310) are provided on both sides of the communication opening (300), and the guide plates (310) sequentially guide the slider assembly (130) to enter and exit from the communication opening (300).

4. The multi-pin molding injection mold according to claim 2, characterized in that: A blocking slider (400) is provided on one side of the slider assembly (130); the first slider (131) is in contact with the blocking slider (400); and a straight limit plate (410) is provided between the second slider (132) and the blocking slider (400) for blocking the second slider (132) from following the pulling movement of the first slider (131).

5. The multi-pin molding injection mold according to claim 3, characterized in that: The first slider (131) is located on the second slider (132), and the first slider (131) is connected to the second slider (132) via a buffer spring (420). The buffer spring (420) is provided in two groups and is arranged up and down.

6. The multi-pin molding injection mold according to claim 1, characterized in that: The bottom end of the guide column (120) is arranged to be inclined outward.

7. The multi-pin molding injection mold according to claim 1, characterized in that: The bottom of the second sliding block (132) is recessed inwards to form a first groove (500); the position corresponding to the upper end of the fixed template (200) is recessed inwards to form a second groove (510); a protrusion (520) is provided on the second groove (510); the protrusion (520) is higher than the highest end of the second groove (510); the protrusion (520) abuts against the inner side wall of the second groove (510).

8. The multi-pin molding injection mold according to any one of claims 1 to 7, characterized in that: The movable mold plate (100) is provided with a plurality of cooling pipes (600) running through the interior thereof, for uniformly cooling the mold cavity (210) to promote the molding of the raw material; the cooling reaction zone (610) is located in the mold cavity (210) and is used to uniformly cool the mold cavity (210) to promote the molding of the raw material.

9. The multi-pin molding injection mold according to any one of claims 1 to 7, characterized in that: An upper fixing plate (700) is provided at the upper end of the movable mold plate (100), and a lower fixing plate (710) is provided at the lower end of the fixed mold plate (200). The upper fixing plate (700) is provided with the pouring port (220) and is in communication with the mold cavity (210).

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