Embedded positioning pin clamp for injection mold

Abstract

The utility model discloses a pre-embedded positioning pin clamp for an injection mold. The pre-embedded positioning pin clamp comprises an adjustable positioning assembly, a pin loading unit and a motion guide module, the adjustable positioning assembly comprises a positioning plate and a limiting plate, and the positioning plate is movably connected to the limiting plate, so that the positioning plate can be close to or away from the limiting plate; the pin loading unit comprises a jack which is formed in the limiting plate, one end, facing the positioning plate, of the jack forms a first end part, and the other end of the jack forms a second end part; the first end part is used for being connected with a motion guide module, and the second end part is used for being connected with an insert to be mounted; the motion guide module comprises a positioning thimble, one end of the positioning thimble is connected with the positioning plate, and the other end passes through the first end part of the jack. Accurate installation of the pre-embedded positioning contact pin in the injection mold can be ensured, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to a pre-embedded positioning pin clamp for injection molds. Background Technology

[0002] In injection mold production, it is common to insert metal nuts, screws, electrical pins, and other inserts. These inserts enhance the mechanical strength, conductivity, threaded connection function, or facilitate assembly with other components of the plastic part. This process is typically carried out manually, installing inserts one by one onto the mold. However, when multiple pins are required and each needs a fixed orientation, the accuracy of manual insert installation cannot be guaranteed, and production costs are high. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a pre-embedded positioning pin fixture for injection molds, which can ensure the accurate installation of pre-embedded positioning pins in injection molds, improve production efficiency, and reduce production costs.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A fixture for pre-embedded positioning pins in injection molds, characterized in that it includes an adjustable positioning component, a pin loading unit, and a motion guiding module;

[0006] The adjustable positioning component includes a positioning plate and a limiting plate, wherein the positioning plate is movably connected to the limiting plate, thereby allowing the positioning plate to move closer to or further away from the limiting plate relative to the limiting plate;

[0007] The pin loading unit includes a socket formed on the limiting plate. One end of the socket facing the positioning plate forms a first end, and the other end forms a second end. The first end is used to connect with the motion guide module, and the second end is used to connect with the insert to be installed.

[0008] The motion guide module includes a positioning pin, one end of which is connected to the positioning plate, and the other end of which passes through the first end of the insertion hole.

[0009] By applying pressure to the positioning plate, the positioning plate is moved closer to the limiting plate, which drives the positioning pin to move in the insertion hole, and pushes the insert connected to the second end out in a preset direction and embeds it into the target position.

[0010] In one optional embodiment, the device further includes a mold insert and an insert, wherein one end of the insert forms a connecting end and the other end forms an embedding end, the connecting end is disposed at the second end of the insertion hole, and the embedding end is used to be embedded into the mold insert.

[0011] In one optional embodiment, the mold insert has a plurality of mounting holes; the positioning pin and the insert are both adapted to the mounting holes.

[0012] In one optional embodiment, the end of the positioning pin is provided with a pin cup head, which is adapted to the connecting end of the insert.

[0013] In one optional embodiment, the motion guiding module further includes a guide plate and a guide strip;

[0014] The guide plate is fixed to the positioning plate, and the guide plate is provided with a clearance groove, through which the positioning pin can pass; a guide groove is formed on the side of the guide plate.

[0015] One end of the guide bar is fixed to the limiting plate, and the other end forms a slider, which is slidably connected in the guide groove.

[0016] In one optional embodiment, the number of guide grooves is 2, and the two guide grooves are disposed on opposite sides of the guide plate; the number of guide strips is 2, and the two guide strips are disposed opposite to the limiting plate.

[0017] In one optional embodiment, the positioning plate has a first position and a second position. When the positioning plate moves to the first position, the pin cup of the positioning pin retracts into the first end of the insertion hole. When the positioning plate moves to the second position, the pin cup of the positioning pin extends from the second end of the insertion hole to its limit position.

[0018] In one optional embodiment, a first limiting block is provided at the end of the guide groove; when the positioning plate moves to the first position, the first limiting block abuts against the slider.

[0019] In one optional embodiment, a second limiting block is provided on the side of the limiting plate facing the guide plate, and when the positioning plate moves to the second position, the second limiting block abuts against the positioning plate.

[0020] In one optional embodiment, the system further includes an elastic reset mechanism, which includes an elastic element that is sleeved around the positioning pin. One end of the elastic element abuts against the guide plate, and the other end abuts against the limiting plate.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This utility model discloses a pre-embedded positioning pin fixture for injection molds. By inserting one end of the insert to be installed into the insertion hole of a limiting plate, holding the limiting plate with one hand and aligning it with the corresponding mold position of the desired insert, while pressing the positioning plate with the other hand, pressure is applied to the positioning plate, causing it to move towards the limiting plate. This moves the positioning pin within the insertion hole, pushing the insert out in a preset direction and embedding it into the target position. The operation is simple. The distance between the positioning plate and the limiting plate, as well as the position, number, and direction of the positioning pins and insertion holes, can all be set according to the insert embedding requirements. This allows the insert to be embedded into the injection mold at a preset depth, angle, and direction, ensuring accurate relative positioning between inserts and achieving multi-pin synchronous orientation positioning. This ensures precise installation of the pre-embedded positioning pins in the injection mold, improving production efficiency and reducing production costs. Attached Figure Description

[0023] Figure 1 This is a front view of the injection mold pre-embedded positioning pin fixture of Example 1;

[0024] Figure 2 This is a cross-sectional view of section AA of the injection mold pre-embedded positioning pin fixture in Example 1;

[0025] Figure 3 This is a cross-sectional view of the BB section of the injection mold pre-embedded positioning pin fixture in Example 1.

[0026] In the diagram: 10, positioning plate; 20, limiting plate; 21, insertion hole; 22, second limiting block; 30, positioning ejector pin; 31, ejector pin cup head; 40, mold insert; 41, mounting hole; 50, insert; 60, guide plate; 61, clearance groove; 62, guide groove; 63, first limiting block; 70, guide strip; 71, slider; 80, elastic element. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0031] Example 1:

[0032] Please refer to Figure 1-3 A fixture for pre-embedded positioning pins in injection molds includes an adjustable positioning component, a pin loading unit, and a motion guiding module;

[0033] The adjustable positioning component includes a positioning plate 10 and a limiting plate 20. The positioning plate 10 and the limiting plate 20 are arranged in parallel and are movably connected, so that the positioning plate 10 can move closer to or further away from the limiting plate 20. The movable connection can be achieved by a lead screw mechanism, a guide rod mechanism, or a guide rail mechanism, etc., as those skilled in the art will know.

[0034] The pin loading unit is disposed on the limiting plate 20 and is mainly used for loading the insert 50 to be installed. Specifically, the pin loading unit includes a plurality of insertion holes 21. The relative positions of the insertion holes 21 are set according to the pre-embedding requirements of the insert 50. The insertion holes 21 are formed on the limiting plate 20. One end of the insertion hole 21 facing the positioning plate 10 forms a first end, and the other end forms a second end. The second end is used to connect with the insert 50 to be installed.

[0035] The motion guide module includes a number of positioning pins 30, the number of which corresponds to the number of insertion holes 21. One end of each positioning pin 30 is connected to the positioning plate 10, and the other end is inserted through the first end of the insertion hole 21.

[0036] Based on the above structure, in use, one end of the insert 50 to be installed is inserted into the insertion hole 21 of the limiting plate 20. One hand holds the limiting plate 20 and aligns it with the corresponding mold position of the desired pre-embedded insert 50. The other hand presses down on the positioning plate 10, applying pressure to the positioning plate 10 to move it closer to the limiting plate 20. This causes the positioning pin 30 to move within the insertion hole 21, pushing the insert 50 connected to the second end into the target position in a preset direction. The insert 50 referred to in this embodiment includes, but is not limited to, metal nuts, screws, electrical pins, or combinations thereof. The distance between the positioning plate 10 and the limiting plate 20, and the position, number, and direction of the positioning pins 30 and the insertion hole 21 can all be set according to the embedding requirements of the insert 50. This allows the insert 50 to be embedded into the injection mold at a preset depth, angle, and direction. The relative positions of each insert 50 are accurate, the operation is simple, and it ensures the precise installation of the pre-embedded positioning pins in the injection mold, improving production efficiency and reducing production costs.

[0037] Specifically, this embodiment also includes a mold insert 40 and an insert 50. One end of the insert 50 forms a connecting end, and the other end forms an embedding end. The connecting end passes through the second end of the insertion hole 21, and the embedding end is used to embed into the mold insert 40. By passing the connecting end of the insert 50 through the second end of the insertion hole 21, it connects with the positioning ejector pin 30, making it easy to embed the embedding end into the corresponding position of the mold insert 40 under the push of the positioning ejector pin 30.

[0038] The mold insert 40 has several mounting holes 41. The positioning pins 30 and inserts 50 are adapted to the mounting holes 41. The size and relative position of the insertion holes 21, positioning pins 30 and inserts 50 can be adjusted according to the pre-embedding requirements of the mold insert 40 to adapt to the pre-embedding requirements of different injection molds. Multi-pin synchronous orientation positioning is achieved through the coordinated cooperation of each component.

[0039] The positioning pin 30 is provided with a pin cup 31 at its end. The pin cup 31 is adapted to the connection end of the insert 50 to ensure that the insert 50 is subjected to uniform force during the pushing process. The pin cup 31 and the insert 50 can cooperate by means of snap-fit, magnetic attraction, negative pressure adsorption, etc., to improve the stability of the insert 50 during the insertion process, and at the same time facilitate the quick positioning and assembly of the insert 50 into the insertion hole 21.

[0040] The motion guiding module of this embodiment also includes a guide plate 60 and a guide strip 70. The guide plate 60 and the positioning plate 10 are locked together by bolts. The guide plate 60 has an clearance groove 61 through which the positioning ejector pin 30 can pass. A guide groove 62 is formed on the side of the guide plate 60. One end of the guide strip 70 is fixed to the limiting plate 20, and the other end forms a slider 71, which is slidably connected in the guide groove 62. Further, there are two guide grooves 62, which are arranged on opposite sides of the guide plate 60. There are also two guide strips 70, which are arranged opposite to each other on the limiting plate 20. This clamps the guide plate 60 and the positioning plate 10 between the two guide strips 70. By setting the guide plate 60 and the guide strip 70 to guide the movement path of the positioning plate 10, the insert 50 is embedded into the mold insert 40 in a preset direction, ensuring the stability of the pre-embedded direction and improving accuracy. Based on the above structure, any adaptive adjustments made to the motion guide module by those skilled in the art, such as setting multiple sets of guide grooves 62 and guide bars 70 to adapt to different working conditions, are all within the protection scope described in this embodiment.

[0041] In this embodiment, the positioning plate 10 has a first position and a second position. When the positioning plate 10 moves to the first position, the pin cup 31 of the positioning pin 30 retracts into the first end of the insertion hole 21. When the positioning plate 10 moves to the second position, the pin cup 31 of the positioning pin 30 extends from the second end of the insertion hole 21 to the limit position.

[0042] A first limiting block 63 is provided at the end of the guide groove 62; when the positioning plate 10 moves to the first position, the first limiting block 63 abuts against the slider 71, restricting the positioning plate 10 from further displacement.

[0043] The limiting plate 20 is provided with a second limiting block 22 on the side facing the guide plate 60. When the positioning plate 10 moves to the second position, the second limiting block 22 abuts against the positioning plate 10, restricting the positioning plate 10 from further displacement.

[0044] The first limiting block 63 and the second limiting block 22 limit the extreme positions of the extension or retraction of the positioning pin 30, so as to avoid excessive displacement and affect the pin insertion accuracy.

[0045] Furthermore, it also includes an elastic reset mechanism, which includes an elastic element 80. In this embodiment, the elastic element 80 is implemented by a compression spring. The elastic element 80 is sleeved around the positioning pin 30. One end of the elastic element 80 abuts against the guide plate 60, and the other end abuts against the limiting plate 20. The elastic element 80 provides an elastic force to drive the positioning plate 10 to reset from the second position to the first position, which enables the injection mold pre-embedded positioning pin fixture to quickly return to the initial state, ready for the next pre-embedded process, improving the efficiency of use, and thus improving the production efficiency.

[0046] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0047] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fixture for pre-embedded positioning pins in injection molds, characterized in that, Includes adjustable positioning components, pin loading units, and motion guiding modules; The adjustable positioning component includes a positioning plate and a limiting plate, wherein the positioning plate is movably connected to the limiting plate, thereby allowing the positioning plate to move closer to or further away from the limiting plate relative to the limiting plate; The pin loading unit includes a socket formed on the limiting plate. One end of the socket facing the positioning plate forms a first end, and the other end forms a second end. The first end is used to connect with the motion guide module, and the second end is used to connect with the insert to be installed. The motion guide module includes a positioning pin, one end of which is connected to the positioning plate, and the other end of which passes through the first end of the insertion hole. By applying pressure to the positioning plate, the positioning plate moves closer to the limiting plate, causing the positioning pin to move in the insertion hole, and pushing the insert out in a preset direction and embedding it into the target position.

2. The injection mold pre-embedded positioning pin fixture according to claim 1, characterized in that, It also includes a mold insert and an insert, wherein one end of the insert forms a connecting end and the other end forms an embedding end, the connecting end is inserted through the second end of the insertion hole, and the embedding end is used to be embedded into the mold insert.

3. The injection mold pre-embedded positioning pin fixture according to claim 2, characterized in that, The mold insert has several mounting holes; the positioning pin and insert are adapted to the mounting holes.

4. A pre-embedded positioning pin fixture for injection molds according to claim 2, characterized in that, The positioning pin has a pin cup head at its end, and the pin cup head is adapted to the connection end of the insert.

5. A pre-embedded positioning pin fixture for injection molds according to claim 4, characterized in that, The motion guiding module also includes a guide plate and guide strips; The guide plate is fixed to the positioning plate, and the guide plate is provided with a clearance groove, through which the positioning pin can pass; a guide groove is formed on the side of the guide plate. One end of the guide bar is fixed to the limiting plate, and the other end forms a slider, which is slidably connected in the guide groove.

6. A pre-embedded positioning pin fixture for injection molds according to claim 5, characterized in that, The number of guide grooves is 2, and the two guide grooves are arranged on opposite sides of the guide plate; the number of guide strips is 2, and the two guide strips are arranged opposite to each other on the limiting plate.

7. A pre-embedded positioning pin fixture for injection molds according to claim 5, characterized in that, The positioning plate has a first position and a second position. When the positioning plate moves to the first position, the pin cup of the positioning pin retracts into the first end of the insertion hole. When the positioning plate moves to the second position, the pin cup of the positioning pin extends from the second end of the insertion hole to the limit position.

8. A pre-embedded positioning pin fixture for injection molds according to claim 6, characterized in that, A first limiting block is provided at the end of the guide groove; when the positioning plate moves to the first position, the first limiting block abuts against the slider.

9. A pre-embedded positioning pin fixture for injection molds according to claim 6, characterized in that, A second limiting block is provided on the side of the limiting plate facing the guide plate. When the positioning plate moves to the second position, the second limiting block abuts against the positioning plate.

10. A pre-embedded positioning pin fixture for injection molds according to claim 6, characterized in that, It also includes an elastic reset mechanism, which includes an elastic element that is sleeved around the positioning pin. One end of the elastic element abuts against the guide plate, and the other end abuts against the limiting plate.

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