Positioning and centering mechanism for a mold

Abstract

The utility model relates to mould technical field, especially a kind of positioning centering mechanism applied to mould, including movable mechanism and fixed mechanism connected with upper die and lower die respectively;The plug-in column of movable seat bottom in movable mechanism cooperates with the plug-in hole of plug-in seat in fixed mechanism, while the upper end inverted conical guiding surface of plug-in hole guides plug-in column to be inserted smoothly, provides mould positioning accuracy, guarantees injection product size accurate, reduces defect;Horizontal movement module that first slide rail, first sliding block, sliding plate, second slide rail and second sliding block of being mutually perpendicular are formed between connecting seat and movable seat, so that upper die has fine adjustment function, deviation when installing or using can be corrected in time, ensure that upper die and lower die are accurately aligned.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a positioning and centering mechanism applied to molds. Background Technology

[0002] In mold manufacturing and injection molding processes, precise mold positioning and alignment are crucial for ensuring the quality of injection molded products. If the upper and lower molds are not precisely aligned during mold closing, serious defects such as dimensional deviations, flash, and material shortages will occur in the injection molded products, significantly impacting product yield and production efficiency.

[0003] Traditional mold positioning and alignment methods have many limitations. Some positioning mechanisms rely solely on simple positioning structures, which are insufficient to meet the increasingly demanding production requirements in terms of positioning accuracy, and cannot effectively guarantee the precise alignment of the upper and lower molds. Moreover, in actual operation, the lack of an effective guiding structure can easily lead to jamming and difficulty in smoothly inserting the positioning pins and positioning holes, thus hindering the mold closing process and affecting production progress. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a positioning and centering mechanism for molds.

[0005] The present invention adopts the following technical solution:

[0006] A positioning and alignment mechanism for a mold, comprising an upper mold and a lower mold, wherein the positioning and alignment mechanism for the mold includes:

[0007] The movable mechanism includes a connecting base and a movable seat movably connected to the bottom of the connecting base, with the upper mold fixedly connected to the bottom of the movable seat; the bottom of the movable seat is provided with a vertically arranged insertion post; the movable seat and the upper mold are capable of moving horizontally relative to the connecting base; and

[0008] The fixing mechanism includes a fixing base, the lower mold is fixedly connected to the upper end of the fixing base, the top of the fixing base is provided with a plug-in seat, the plug-in seat is provided with a plug-in hole with an upper opening, the plug-in hole is used to cooperate with the plug-in post, and the upper opening of the plug-in hole is provided with an inverted conical guide surface.

[0009] Preferably, a horizontal moving module is provided between the connecting seat and the movable seat, and the horizontal moving module drives the movable seat to move in the horizontal plane relative to the connecting seat.

[0010] Preferably, the horizontal moving module includes a first slide rail, a first slider, a sliding plate, a second slide rail, and a second slider; the first slide rail is fixed to the bottom of the fixed base, the first slider is slidably connected to the first slide rail and fixed to the top of the sliding plate, the second slide rail is fixed to the bottom of the sliding plate, and the second slider is slidably connected to the second slide rail and fixed to the top of the movable base; the first slide rail and the second slide rail are perpendicular to each other.

[0011] Preferably, limiting members are provided on both sides of the first slide rail and the second slide rail, and the limiting members are used to prevent the first slider and the second slider from disengaging.

[0012] Preferably, both the insertion post and the insertion hole are cylindrical; the insertion post is inserted into the insertion hole to achieve mutual positioning of the upper mold and the lower mold.

[0013] Preferably, the cross-sectional radii of the plug and the plug hole are the same.

[0014] Preferably, the outer side of the plug is covered with a protective rubber sleeve.

[0015] Preferably, there are two sets of plug-in pins, symmetrically distributed on both sides of the upper mold; and two plug-in seats, symmetrically distributed on both sides of the lower mold.

[0016] Preferably, the upper mold includes an upper template and an upper mold core, the upper template is fixedly connected to the movable seat, and the upper template is provided with guide posts; the lower mold includes a lower template and a lower mold core, the lower template is fixedly connected to the lower mold core, and the lower template is provided with guide sleeves; the guide sleeves are used to cooperate with the guide posts.

[0017] Preferably, both the fixed base and the lower template are provided with injection ports that communicate with the lower mold.

[0018] The beneficial effects of this utility model are as follows:

[0019] The positioning and alignment mechanism for molds involved in this utility model includes a movable mechanism and a fixed mechanism that are respectively connected to the upper mold and the lower mold. The insertion post at the bottom of the movable seat in the movable mechanism cooperates with the insertion hole of the insertion seat in the fixed mechanism. At the same time, the inverted conical guide surface at the upper end of the insertion hole guides the insertion post to be inserted smoothly, improving the positioning accuracy of mold closing, ensuring the accurate size of the injection molded product, and reducing defects. The horizontal moving module between the connecting seat and the movable seat is composed of a first slide rail, a first slider, a sliding plate, a second slide rail, and a second slider that are perpendicular to each other, so that the upper mold has a fine adjustment function, which can correct the deviation during installation or use in time, and ensure that the upper mold and the lower mold are accurately aligned. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the positioning and centering mechanism of this utility model applied to a mold;

[0021] Figure 2 for Figure 1 An exploded view of the positioning and centering mechanism applied to molds;

[0022] Figure 3 for Figure 1 An exploded view of the positioning and centering mechanism applied to molds from another angle;

[0023] Figure 4 for Figure 1 A sectional view along AA.

[0024] Numbering on the map:

[0025] 10-Upper mold; 11-Upper template; 12-Upper mold core; 13-Guide pillar;

[0026] 20-Lower mold; 21-Lower template; 22-Lower mold core; 23-Guide sleeve;

[0027] 30-Moving mechanism; 31-Connecting seat; 32-Moving seat; 33-Plug-in post; 331-Protective rubber sleeve; 34-Horizontal moving module; 341-First slide rail; 342-First slider; 343-Sliding plate; 344-Second slide rail; 345-Second slider;

[0028] 40-Fixing mechanism; 41-Fixing base; 42-Plug-in base; 43-Plug-in hole; 44-Guide surface. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] like Figures 1 to 4 As shown, the positioning and centering mechanism of this utility model applied to a mold includes a movable mechanism 30 and a fixed mechanism 40, wherein the movable mechanism 30 is connected to the upper mold 10 and the fixed mechanism 40 is connected to the lower mold 20; in addition, both the movable mechanism 30 and the fixed mechanism 40 are connected to the injection molding equipment; the positioning and centering mechanism of this utility model applied to a mold can assist the upper mold 10 and the lower mold 20 in mutual positioning and centering, ensuring the positioning accuracy of mold closing.

[0033] The movable mechanism 30 includes a connecting seat 31 connected to the injection molding equipment and a movable seat 32 movably connected to the bottom of the connecting seat 31. The upper mold 10 is fixedly connected to the bottom of the movable seat 32. The bottom of the movable seat 32 is provided with a vertically arranged insertion post 33. The movable seat 32 and the upper mold 10 can move horizontally relative to the connecting seat 31. The fixed mechanism 40 includes a fixed seat 41 connected to the injection molding equipment. The lower mold 20 is fixedly connected to the upper end of the fixed seat 41. The top of the fixed seat 41 is provided with an insertion seat 42. The insertion seat 42 is provided with an insertion hole 43 with an upper opening. The insertion hole 43 is used to cooperate with the insertion post 33. The upper opening of the insertion hole 43 is provided with an inverted conical guide surface 44. In use, the movable mechanism 30 and the upper mold 10 descend vertically toward the lower mold 20 to close the mold. During the movement, the insertion pin 33 extends into the insertion hole 43, and the guide surface 44 guides the insertion pin 33. During this period, the movable seat 32 can make minor adjustments in the horizontal plane relative to the connecting seat 31. Finally, the insertion pin 33 is fully inserted into the insertion hole 43, at which point the upper mold 10 and the lower mold 20 are positioned and aligned.

[0034] A further improvement to the above solution is that a horizontal moving module 34 is provided between the connecting seat 31 and the movable seat 32. The horizontal moving module 34 drives the movable seat 32 to move horizontally relative to the connecting seat 31. Specifically, the horizontal moving module 34 includes a first slide rail 341, a first slider 342, a sliding plate 343, a second slide rail 344, and a second slider 345. The first slide rail 341 is fixed to the bottom of the fixed seat 41. The first slider 342 is slidably connected to the first slide rail 341 and fixed to the top of the sliding plate 343. The second slide rail 344 is fixed to the bottom of the sliding plate 343. The second slider 345 is slidably connected to the second slide rail 344 and fixed to the top of the movable seat 32. The first slide rail 341 and the second slide rail 344 are perpendicular to each other. Limiting members (not shown in the figure) are provided on both sides of the first slide rail 341 and the second slide rail 344 to prevent the first slider 342 and the second slider 345 from disengaging. The first slider 342 slides on the first slide rail 341, and the second slider 345 slides on the second slide rail 344. The first slide rail 341 and the second slide rail 344 are perpendicular to each other. Through the above two sliding movements, the movable seat 32 and the upper mold 10 can move along the XY axis in the horizontal plane, so as to fine-tune the upper mold 10 and improve the positioning accuracy of the mold closing.

[0035] A further improvement to the above scheme is that both the insertion post 33 and the insertion hole 43 are cylindrical, and the cross-sectional radii of the insertion hole 43 and the insertion post 33 are the same. The cylindrical structure of the insertion post 33 and the insertion hole 43 facilitates their mutual insertion. When the insertion post 33 is inserted into the insertion hole 43, the upper mold 10 and the lower mold 20 can be mutually positioned.

[0036] A further improvement to the above solution is that a protective rubber sleeve 331 is provided on the outer side of the insertion post 33. The protective rubber sleeve 331 reduces insertion wear and extends the life of key positioning components of the mold.

[0037] A further improvement to the above scheme is that two sets of insertion pins 33 are provided, symmetrically distributed on both sides of the upper mold 10; two insertion seats 42 are provided, symmetrically distributed on both sides of the lower mold 20. The two sets of symmetrically distributed insertion pins 33 and insertion seats 42 make the mold closing force more uniform and enhance the positioning stability.

[0038] A further improvement to the above scheme is that the upper mold 10 includes an upper template 11 and an upper mold core 12. The upper template 11 is fixedly connected to the movable seat 32, and the upper template 11 is provided with a guide post 13. The lower mold 20 includes a lower template 21 and a lower mold core 22. The lower template 21 is fixedly connected to the lower mold core 22, and the lower template 21 is provided with a guide sleeve 23. The guide sleeve 23 is used to cooperate with the guide post 13. It should be noted that the length of the insertion post 33 is greater than that of the guide post 13. Therefore, during the mold closing process, the insertion post 33 is first inserted into the insertion hole 43 to achieve initial positioning. Subsequently, the guide post 13 is inserted into the guide sleeve 23 to achieve secondary positioning. Through the two mutual positionings, the positioning accuracy is further improved. At the same time, both the fixed seat 41 and the lower template 21 are provided with injection ports (not shown in the figure) that communicate with the lower mold 20 to ensure the normal progress of injection molding.

[0039] Compared with the prior art, the positioning and centering mechanism for molds involved in this utility model includes a movable mechanism 30 and a fixed mechanism 40 respectively connected to the upper mold 10 and the lower mold 20; the insertion post 33 at the bottom of the movable seat 32 in the movable mechanism 30 cooperates with the insertion hole 43 of the insertion seat 42 in the fixed mechanism 40, and at the same time, the inverted conical guide surface 44 at the upper end of the insertion hole 43 guides the insertion post 33 to be smoothly inserted, providing mold closing positioning accuracy, ensuring the accurate size of the injection molded product, and reducing defects; the horizontal moving module 34 between the connecting seat 31 and the movable seat 32 is composed of a first slide rail 341, a first slider 342, a sliding plate 343, a second slide rail 344, and a second slider 345 that are perpendicular to each other, so that the upper mold 10 has a fine adjustment function, which can correct the deviation during installation or use in time, and ensure that the upper mold 10 and the lower mold 20 are accurately aligned.

[0040] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A positioning and centering mechanism for a mold, comprising an upper mold and a lower mold, characterized in that, The positioning and centering mechanism applied to the mold includes: The movable mechanism includes a connecting base and a movable seat movably connected to the bottom of the connecting base, with the upper mold fixedly connected to the bottom of the movable seat; the bottom of the movable seat is provided with a vertically arranged insertion post; the movable seat and the upper mold are capable of moving horizontally relative to the connecting base; and The fixing mechanism includes a fixing base, the lower mold is fixedly connected to the upper end of the fixing base, the top of the fixing base is provided with a plug-in seat, the plug-in seat is provided with a plug-in hole with an upper opening, the plug-in hole is used to cooperate with the plug-in post, and the upper opening of the plug-in hole is provided with an inverted conical guide surface.

2. The positioning and centering mechanism for molds according to claim 1, characterized in that, A horizontal moving module is provided between the connecting seat and the movable seat, and the horizontal moving module drives the movable seat to move in the horizontal plane relative to the connecting seat.

3. The positioning and centering mechanism for molds according to claim 2, characterized in that, The horizontal moving module includes a first slide rail, a first slider, a sliding plate, a second slide rail, and a second slider; the first slide rail is fixed to the bottom of the fixed base, the first slider is slidably connected to the first slide rail and fixed to the top of the sliding plate, the second slide rail is fixed to the bottom of the sliding plate, and the second slider is slidably connected to the second slide rail and fixed to the top of the movable base; the first slide rail and the second slide rail are perpendicular to each other.

4. The positioning and centering mechanism for molds according to claim 3, characterized in that, Both sides of the first and second slide rails are provided with limiting members, which are used to prevent the first and second sliders from disengaging.

5. The positioning and centering mechanism for a mold according to claim 1, characterized in that, Both the insertion pin and the insertion hole are cylindrical; the insertion pin is inserted into the insertion hole to achieve mutual positioning of the upper mold and the lower mold.

6. The positioning and centering mechanism for a mold according to claim 5, characterized in that, The cross-sectional radii of the plug and the plug hole are the same.

7. The positioning and centering mechanism for a mold according to claim 1, characterized in that, The outer side of the plug is covered with a protective rubber sleeve.

8. The positioning and centering mechanism for a mold according to claim 1, characterized in that, The plug-in pins are provided in two sets and are symmetrically distributed on both sides of the upper mold; the plug-in seats are provided in two sets and are symmetrically distributed on both sides of the lower mold.

9. The positioning and centering mechanism for a mold according to claim 1, characterized in that, The upper mold includes an upper template and an upper mold core. The upper template is fixedly connected to the movable seat and is provided with guide posts. The lower mold includes a lower template and a lower mold core. The lower template is fixedly connected to the lower mold core and is provided with guide sleeves. The guide sleeves are used to cooperate with the guide posts.

10. The positioning and centering mechanism for a mold according to claim 9, characterized in that, Both the fixed base and the lower template are provided with injection ports that communicate with the lower mold.

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