Positioning and locking mechanism suitable for double-color injection mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a positioning and locking mechanism suitable for a double-shot injection mold, which comprises a positioning and locking mechanism main body, a double-shot injection lower mold and a double-shot injection upper mold, the mold closing locking insertion rod and the positioning insertion rod are arranged on the positioning locking mechanism body, the mold closing locking insertion rod and the positioning insertion rod are arranged oppositely and perpendicularly, the mold closing locking insertion rod and the positioning insertion rod are of a square rod structure with a conical head, and the square end of the mold closing locking insertion rod and the square end of the positioning insertion rod are rotationally provided with a connecting rotating shaft. And the mold closing locking insertion rod and the positioning insertion rod respectively correspond to the fixed seat and the adjusting seat. The positioning and locking mechanism suitable for the double-color injection mold can realize linear movement positioning and rotary movement positioning at the same time, and ensures the stability of mold closing, so that the stability of double-color injection molding is improved, and the processing quality of products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a positioning and locking mechanism suitable for a double-color injection mold. Background Art

[0002] Two-color injection mold is a special plastic injection molding technology that can use two different plastic materials in a single molding cycle to produce plastic products with two colors or two material properties. It is widely used in many fields such as automotive interiors, electronic product housings, household appliances, toys, medical equipment, etc. to enhance the aesthetics, functionality and value of the product. The design of a two-color mold is relatively complex and usually includes two sets of mold structures, which are used for the injection of two materials respectively. The mold must ensure that the two materials can be accurately docked. In order to ensure molding accuracy, the mold is equipped with precise positioning and locking mechanisms, such as locating pins, conical positioning, hydraulic / pneumatic clamping systems, etc., to ensure precise alignment and stability when the mold is closed.

[0003] The interior or the whole of the existing two-color injection mold is usually made to be rotatable or movable. When the positioning and locking mechanism suitable for the two-color injection mold needs to perform mold locking and movable positioning on different types of molds, different structures are usually used, which lacks versatility. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning and locking mechanism suitable for a two-color injection mold to solve the problem raised by the above-mentioned background technology that the interior or the whole of the two-color injection mold on the market is usually made to be rotatable or movable, and the positioning and locking mechanism suitable for the two-color injection mold usually has to adopt different structures when performing mold locking and movable positioning on molds of different forms, resulting in insufficient versatility.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning and locking mechanism suitable for a two-color injection mold, comprising a positioning and locking mechanism main body, a two-color injection lower mold and a two-color injection upper mold, the positioning and locking mechanism main body is provided with a mold locking plug and a positioning plug with the same shape and structure, and the mold locking plug and the positioning plug are relatively vertically arranged, the mold locking plug and the positioning plug are square rod structures with conical heads, and the square ends of the mold locking plug and the positioning plug are rotatably installed with a connecting shaft, the positioning and locking mechanism main body is provided with a fixed seat and an adjusting seat for positioning, and the mold locking plug and the positioning plug correspond to the fixed seat and the adjusting seat respectively, a lower mold mounting platform is jointly provided below the fixed seat and between the adjusting seat, and a first mounting plate is provided below the lower mold mounting platform, linear movable guide rails of an integrated structure are symmetrically arranged on both sides of the first mounting plate, and the linear movable guide rails are movably connected with the adjusting seat.

[0006] Preferably, the fixing seat is fixed to the upper end of the lower mold mounting platform by a screw, and a fixing plate is provided on a side of the fixing seat close to the upper mold of the two-color injection molding, and the fixing seat is fixed with a limit rod which is plugged and fastened with the upper mold of the two-color injection molding by a screw connection, and a limit sleeve is provided on the movable sleeve of the limit rod, and the limit sleeve is welded and fixed to the fixing plate.

[0007] Preferably, a horizontal moving drive mechanism is installed between the fixed seat and the fixed plate by screwing, and the horizontal moving drive mechanism is arranged parallel to the limit rod, the fixed plate and the mold locking rod are screwed and fastened by connecting the rotating shaft, and the two sides of the short sides of the two-color injection lower mold and the two-color injection upper mold are jointly provided with mold positioning grooves, and the mold positioning grooves are respectively clamped and fastened with the mold locking rod and the fixed plate.

[0008] Preferably, a second mounting plate is further provided at the lower end of the lower mold mounting platform, and an arc-shaped movable guide rail of an integral structure is symmetrically provided on the second mounting plate, and the arc-shaped movable guide rail is also movably engaged with the adjustment seat.

[0009] Preferably, the lower mold mounting platform is screwed and fixed to the two-color injection lower mold, and connecting seats of an integral structure are symmetrically provided on both sides of the lower mold mounting platform, and the connecting seat is screwed and fixed to the adjustment seat, and a lifting drive mechanism is installed between the connecting seat and the adjustment seat, and the lifting drive mechanism is fixed to the positioning rod through a connecting shaft.

[0010] Preferably, a linear moving mechanism is symmetrically screwed and fixed on the upper end of the first mounting plate, and a protrusion that penetrates the transmission structure of the linear moving mechanism is provided on the side of the adjustment seat, a base plate is provided under the first mounting plate and the second mounting plate, and the first mounting plate is screwed and fixed to the base plate after being fastened and clamped, and the lower mold mounting table is rotatably connected to the base plate through a rotating drive structure when placed above the second mounting plate.

[0011] Preferably, at least three positioning holes are respectively formed on the linear movable guide rail and the arc movable guide rail, and the positioning holes are plug-fitted with the positioning plug rods.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the positioning and locking mechanism applicable to the two-color injection mold can realize linear movement positioning and rotational movement positioning at the same time, and ensure the stability of the mold, so as to ensure the stability of the two-color injection molding and the processing quality of the product. The positioning and locking mechanism applicable to the two-color injection mold fixes the lower mold mounting table through the mounting plate, so that the mounting plate can be linearly moved or rotationally adjusted, and the purpose of replacing the injection position of the mold can be achieved. At the same time, after adjusting the injection position, the locking process can be performed, and a square rod with a conical head is used for plug-in positioning and locking to ensure the stability of the locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the structure of a positioning and locking mechanism suitable for a two-color injection mold of the utility model;

[0014] Figure 2 The utility model is a positioning locking mechanism suitable for a two-color injection mold Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 3 The utility model is a positioning locking mechanism suitable for a two-color injection mold Figure 1 The enlarged structural diagram at B in the middle;

[0016] Figure 4 This is a top view of a linear moving positioning structure of a positioning and locking mechanism suitable for a two-color injection mold of the utility model;

[0017] Figure 5 This is a top view of a rotational movement positioning structure of a positioning locking mechanism suitable for a two-color injection mold of the utility model;

[0018] Figure 6 The utility model is a schematic diagram of a mold locking rod structure of a positioning locking mechanism suitable for a double-color injection mold.

[0019] In the figure: 1. fixed plate; 2. fixed seat; 3. main body of positioning and locking mechanism; 4. connecting seat; 5. linear moving mechanism; 6. adjusting seat; 7. limiting rod; 8. lower mold for two-color injection molding; 9. bottom plate; 10. upper mold for two-color injection molding; 11. limiting sleeve; 12. lower mold mounting table; 13. linear moving guide rail; 14. mold closing positioning groove; 15. mold closing locking rod; 16. horizontal moving drive mechanism; 17. lifting drive mechanism; 18. positioning rod; 19. first mounting plate; 20. connecting shaft; 21. positioning hole; 22. second mounting plate; 23. arc moving guide rail. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6The utility model provides a technical solution: a positioning and locking mechanism suitable for a two-color injection mold, comprising a positioning and locking mechanism body 3, a two-color injection lower mold 8 and a two-color injection upper mold 10, a mold clamping locking plug rod 15 and a positioning plug rod 18 of the same shape and structure are arranged on the positioning and locking mechanism body 3, and the mold clamping locking plug rod 15 and the positioning plug rod 18 are relatively vertically arranged, the mold clamping locking plug rod 15 and the positioning plug rod 18 are square rod structures with conical heads, and the square ends of the mold clamping locking plug rod 15 and the positioning plug rod 18 are rotatably installed with a connecting shaft 20, a fixed seat 2 and an adjusting seat 6 for positioning are arranged on the positioning and locking mechanism body 3, and the mold clamping locking plug rod 15 and the positioning plug rod 18 correspond to the fixed seat 2 and the adjusting seat 6 respectively, and the lower portion of the fixed seat 2 A lower mold mounting platform 12 is commonly provided between the square and the adjustment seat 6, the fixed seat 2 is fixed to the upper end of the lower mold mounting platform 12 by a screw, and a fixed plate 1 is provided on a side of the fixed seat 2 close to the upper mold 10 of the two-color injection molding, and the fixed seat 2 is fixed with a limit rod 7 that is plugged and fastened with the upper mold 10 of the two-color injection molding by screw connection, and a limit sleeve 11 is movably sleeved on the limit rod 7, and the limit sleeve 11 is welded and fixed to the fixed plate 1. This structure performs a positioning processing on the mold locking plug rod 15 through the fixed seat 2, and the limit rod 7 makes the upper mold 10 of the two-color injection molding and the fixed seat 2 relatively firmly connected to ensure the positioning accuracy of the fixed seat 2, and a horizontal moving drive mechanism 16 is installed between the fixed seat 2 and the fixed plate 1 by screw connection, and the horizontal moving drive mechanism 16 and the limit rod 7 are arranged in parallel, the fixed plate 1 and the mold locking plug rod 15 are screwed and fastened by connecting the rotating shaft 20, and the two sides of the short sides of the two-color injection lower mold 8 and the two-color injection upper mold 10 are jointly provided with a mold positioning groove 14, and the mold positioning groove 14 and the mold locking plug rod 15 and the fixed plate 1 are respectively clamped and fastened. This structure allows the fixed plate 1 to move relative to the fixed seat 2 through the horizontal movement driving mechanism 16, so that the mold locking plug rod 15 and the fixed plate 1 are clamped into the mold positioning groove 14, so as to realize the locking process between the two-color injection lower mold 8 and the two-color injection upper mold 10 after the mold is clamped. The mold locking plug rod 15 can be rotated by connecting the rotating shaft 20, so that the mold locking plug rod 15 can be inserted into the mold positioning groove 14 through the conical head for positioning, and can be locked by the mold locking. The rotation of the insert rod 15 allows the square rod structure of the mold locking insert rod 15 to be smoothly inserted into the mold positioning groove 14 to ensure the stability of the mold locking. A second mounting plate 22 is also provided at the lower end of the lower mold mounting platform 12, and an arc-shaped movable guide rail 23 of an integral structure is symmetrically provided on the second mounting plate 22, and the arc-shaped movable guide rail 23 and the adjustment seat 6 are also movably engaged. When the two-color injection lower mold 8 and the two-color injection upper mold 10 are rotated and adjusted to change the injection position, the lower mold mounting platform 12 can be rotated through the positioning of the arc-shaped movable guide rail 23 on the second mounting plate 22 to realize the rotation limit processing. The lower mold mounting platform 12 is screwed and fixed to the two-color injection lower mold 8, and the two sides of the lower mold mounting platform 12 are symmetrically provided with connecting seats 4 of an integral structure.The connecting seat 4 is screwed and fixed with the adjusting seat 6, and a lifting drive mechanism 17 is installed between the connecting seat 4 and the adjusting seat 6, and the lifting drive mechanism 17 and the positioning plug rod 18 are fixed by connecting the rotating shaft 20. This structure allows the two-color injection mold to rotate to the desired position. The lifting drive mechanism 17 can lower the positioning plug rod 18, and the positioning plug rod 18 is inserted into the positioning hole 21 on the linear moving guide rail 13 to perform the positioning processing of the two-color injection mold, so as to achieve the stable positioning processing of the two-color injection mold, ensure the injection accuracy of the two-color injection mold, and thus ensure the product quality. A first mounting plate 19 is provided below the lower mold mounting table 12, and a linear moving mechanism 5 is symmetrically screwed and fixed on the upper end of the first mounting plate 19, and a protrusion that penetrates the transmission structure of the linear moving mechanism 5 is provided on the side of the adjusting seat 6. The first mounting plate 19 and the second mounting plate 22 are provided below The bottom plate 9 is provided on both sides, and the first mounting plate 19 is fastened and clamped with the bottom plate 9 and then screwed and fixed. When the lower mold mounting platform 12 is placed above the second mounting plate 22, it is rotatably connected with the bottom plate 9 through a rotary drive structure. This structure can perform linear movement processing on the adjustment seat 6 through the linear movement mechanism 5, thereby realizing the linear movement processing of the two-color injection mold. The bottom plate 9 is used for bottom positioning processing. The first mounting plate 19 is symmetrically provided with linear moving guide rails 13 of an integral structure on both sides, and the linear moving guide rails 13 are movably clamped with the adjustment seat 6. At least three positioning holes 21 are respectively opened on the linear moving guide rails 13 and the arc moving guide rails 23, and the positioning holes 21 are plugged and matched with the positioning plug rods 18. This structure enables the linear moving guide rails 13 and the arc moving guide rails 23 to respectively perform positioning and stable processing on two-color injection molds of different fixing forms through the positioning holes 21.

[0022] Working principle: When using the positioning and locking mechanism suitable for two-color injection molds, first, when the two-color injection lower mold 8 and the two-color injection upper mold 10 are performing two-color injection molding, after the two-color injection lower mold 8 and the two-color injection upper mold 10 are molded together, the positioning and locking mechanism body 3 moves the fixed plate 1 through the horizontal movement drive mechanism 16, so that the mold locking rod 15 is inserted into the mold positioning groove 14, and the fixed plate 1 is snapped into the mold positioning groove 14 to achieve mold tightening. The fixed seat 2 is positioned and stabilized by the lower mold mounting table 12, and the limiting sleeve 11 moves and limits the fixed plate 1 through the limiting rod 7. The lower mold mounting table 12 is connected to the adjustment seat 6 through the connecting seat 4. When performing linear movement, the first mounting plate 19 is used, and the linear movement mechanism 5 is adjusted by The joint seat 6 drives the lower mold mounting table 12 to move linearly, and the linear movable guide rail 13 is used to limit the linear movement of the adjustment seat 6. After moving to the desired position, the lifting drive mechanism 17 is started to insert the positioning rod 18 into the positioning hole 21 to achieve the overall stability of the two-color injection mold. When performing rotation adjustment, the second mounting plate 22 is used, and the lower mold mounting table 12 rotates under the positioning of the base plate 9, and is limited by the arc-shaped movable guide rail 23 until it rotates to the desired position, so that the lifting drive mechanism 17 is started to insert the positioning rod 18 into the positioning hole 21, and the connecting shaft 20 allows the mold locking rod 15 and the positioning rod 18 to rotate, so that the mold locking rod 15 and the positioning rod 18 can be smoothly inserted into the mold positioning groove 14 and the positioning hole 21 respectively, thereby completing a series of tasks.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning and locking mechanism suitable for a two-color injection mold, comprising a positioning and locking mechanism body (3), a two-color injection lower mold (8) and a two-color injection upper mold (10), characterized in that: The positioning locking mechanism body (3) is provided with a mold clamping locking rod (15) and a positioning rod (18) of the same shape and structure, and the mold clamping locking rod (15) and the positioning rod (18) are arranged vertically relative to each other, the mold clamping locking rod (15) and the positioning rod (18) are square rod structures with conical heads, and the square ends of the mold clamping locking rod (15) and the positioning rod (18) are rotatably mounted with a connecting shaft (20), and the positioning locking mechanism body (3) is provided with a fixing seat (20) for positioning. 2) and an adjusting seat (6), and a mold locking plug rod (15) and a positioning plug rod (18) respectively correspond to the fixed seat (2) and the adjusting seat (6), a lower mold mounting platform (12) is provided below the fixed seat (2) and between the adjusting seat (6), and a first mounting plate (19) is provided below the lower mold mounting platform (12), linear movable guide rails (13) of an integral structure are symmetrically provided on both sides of the first mounting plate (19), and the linear movable guide rails (13) are movably connected to the adjusting seat (6).

2. A positioning and locking mechanism suitable for a two-color injection mold according to claim 1, characterized in that: The fixing seat (2) is fixed to the upper end of the lower mold mounting platform (12) by means of screws, and a fixing plate (1) is provided on a side of the fixing seat (2) close to the upper double-color injection mold (10), and a limiting rod (7) plugged and fastened to the upper double-color injection mold (10) is fixed to the fixing seat (2) by means of screws, a limiting sleeve (11) is movably sleeved on the limiting rod (7), and the limiting sleeve (11) is fixed to the fixing plate (1) by welding.

3. A positioning and locking mechanism suitable for a two-color injection mold according to claim 2, characterized in that: A horizontal movement drive mechanism (16) is installed between the fixing seat (2) and the fixing plate (1) by screw connection, and the horizontal movement drive mechanism (16) is arranged in parallel with the limit rod (7), the fixing plate (1) and the mold clamping locking plug rod (15) are screwed and fastened by a connecting shaft (20), and mold clamping positioning grooves (14) are jointly provided on both sides of the short sides of the two-color injection lower mold (8) and the two-color injection upper mold (10), and the mold clamping positioning grooves (14) are respectively clamped and fastened with the mold clamping locking plug rod (15) and the fixing plate (1).

4. The positioning and locking mechanism for a two-color injection mold according to claim 1, characterized in that: A second mounting plate (22) is also provided at the lower end of the lower mold mounting platform (12), and an arc-shaped movable guide rail (23) of an integral structure is symmetrically provided on the second mounting plate (22), and the arc-shaped movable guide rail (23) is also movably engaged with the adjustment seat (6).

5. The positioning and locking mechanism for a two-color injection mold according to claim 1, characterized in that: The lower mold mounting platform (12) is screwed and fixed to the double-color injection lower mold (8), and connecting seats (4) of an integral structure are symmetrically provided on both sides of the lower mold mounting platform (12), and the connecting seat (4) and the adjustment seat (6) are screwed and fixed, and a lifting drive mechanism (17) is installed between the connecting seat (4) and the adjustment seat (6), and the lifting drive mechanism (17) and the positioning rod (18) are fixed via a connecting shaft (20).

6. The positioning and locking mechanism for a two-color injection mold according to claim 4, characterized in that: A linear motion mechanism (5) is symmetrically screwed and fixed to the upper end of the first mounting plate (19), and a protrusion penetrating the transmission structure of the linear motion mechanism (5) is provided on the side of the adjustment seat (6). A bottom plate (9) is provided below the first mounting plate (19) and the second mounting plate (22), and the first mounting plate (19) and the bottom plate (9) are screwed and fixed after being fastened and clamped. When the lower mold mounting platform (12) is placed above the second mounting plate (22), it is rotationally connected to the bottom plate (9) via a rotary drive structure.

7. The positioning and locking mechanism for a two-color injection mold according to claim 4, characterized in that: At least three positioning holes (21) are respectively provided on the linear movable guide rail (13) and the arc movable guide rail (23), and the positioning holes (21) are plug-fitted with the positioning plug rods (18).

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