A quick change insert mechanism for injection mold

Abstract

The utility model relates to the field of injection mold provides a kind of injection mold quick change insert mechanism, including fixed die, fixed die insert, fixed die frame, long pin, mounting screw and fixed screw, wherein, fixed die is installed in fixed die frame by mounting screw, fixed die insert is installed on fixed die, long pin is fixed to fixed die insert by passing through fixed die frame, fixed screw is installed above long pin, and long pin is fixed;When needing to replace fixed die insert, first, fixed screw is disassembled, then long pin is extracted, fixed die insert is pulled out from fixed die, then new fixed die insert is inserted into fixed die, and long pin is inserted, and fixed screw is tightened.The utility model can realize the quick and reliable disassembly of fixed die insert.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a quick insert changing mechanism for injection molds. Background Technology

[0002] In order to reduce costs during the production of injection molded products, many products that are mostly the same but have some differences are produced by using interchangeable inserts on the same mold. This greatly reduces mold costs and processing time.

[0003] This type of mold requires changing inserts during production to switch between different products. Therefore, to improve production efficiency and flexibility, the insert replacement method should be as quick and convenient as possible. If a conventional insert design is used, changing the insert requires not only removing the mold from the injection molding machine but also disassembling the mold to replace the insert, which is time-consuming, labor-intensive, and may require the use of specialized tools. Repeated disassembly and assembly may also affect the precision of the mold. Therefore, this type of insert is usually designed with front-mounted screws.

[0004] For inserts with front-mounted screws, since the inserts need to be fixed to the mold by screws installed from the front, there will be screw through holes on the front of the inserts. In order to avoid the screw through holes of the inserts affecting the shape of the product, the screw through holes on the interchangeable inserts fixed by front screws should not be placed inside the product. Therefore, this method is usually suitable for the situation where the insert to be replaced is located at the edge of the product. If the insert is located in the middle part of the product, the front-mounted screw fixing method is not applicable, and the traditional method still needs to be used. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the related art. To this end, this invention provides a quick insert changing mechanism for injection molds, enabling rapid replacement of inserts without considering their position.

[0006] This utility model provides a quick insert changing mechanism for injection molds, including a fixed mold core, a fixed mold insert, a fixed mold frame, a long pin, a mounting screw, and a fixing screw. The fixed mold core is mounted on the fixed mold frame by the mounting screw, the fixed mold insert is mounted on the fixed mold core, the long pin passes through the fixed mold frame to fix the fixed mold insert, and the fixing screw is mounted above the long pin to fix the long pin.

[0007] According to the present invention, a quick insert changing mechanism for injection molds is provided, wherein a cavity groove is formed on the fixed mold frame, and the shape of the cavity groove matches the fixed mold core, and the fixed mold core is embedded in the cavity groove.

[0008] According to the present invention, a quick-change insert mechanism for injection molds is provided, wherein the fixed mold insert has a pin hole, and the long pin passes through the pin hole to fix the fixed mold insert.

[0009] According to the present invention, a quick insert changing mechanism for an injection mold is provided, wherein the fixed mold frame has an insert groove and the fixed mold core has an insert hole, and the shapes of the insert groove and the insert hole match the fixed mold insert. The fixed mold insert passes through the insert hole and is inserted into the insert groove to position the fixed mold insert.

[0010] According to the present invention, a quick insert changing mechanism for injection molds is provided, wherein the outer surface of the long pin is in contact with the bottom of the fixed mold core.

[0011] According to the present invention, a quick insert changing mechanism for injection molds is provided, wherein a pin through hole is provided on the fixed mold frame, and the axis of the pin through hole does not coincide with the axis of the pin hole. The long pin passes through the pin through hole and through the pin hole to fix the fixed mold insert.

[0012] According to the present invention, a quick insert changing mechanism for injection molds is provided, wherein a fixing screw hole is provided above the pin through hole, and the fixing screw hole communicates with the pin through hole. The fixing screw is installed above the long pin through the fixing screw hole and presses the long pin to fix the long pin.

[0013] The above-described one or more technical solutions in the embodiments of this utility model have at least one of the following technical effects: This utility model provides a quick-change insert mechanism for injection molds. The fixed mold insert is fixed by a long pin that can be disassembled from the side. The long pin is fixed by a fixing screw located on the edge of the fixed mold frame, so that the fixed mold insert can be used in any position in the mold without interfering with the normal production of the product. On this basis, the fixed mold insert can be easily replaced, thereby improving the efficiency of mold changing in injection molding production.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a quick insert changing mechanism for injection molds provided by this utility model.

[0017] Figure 2 This is a schematic diagram illustrating the assembly relationship of the fixed mold insert, long pin, and fixing screw in a quick-change insert mechanism for injection molds provided by this utility model.

[0018] Figure 3 This is a schematic diagram of the fixed mold frame of a quick insert changing mechanism for injection molds provided by this utility model.

[0019] Figure label: 1. Fixed mold core; 2. Fixed mold insert; 3. Fixed mold frame; 4. Long pin; 5. Mounting screw; 6. Fixing screw; 3-1. Cavity groove; 3-2. Insert groove; 3-3. Pin through hole; 3-4. Fixing screw hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The following embodiments are used to illustrate this utility model, but cannot be used to limit the scope of this utility model.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0023] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The following is combined with Figures 1 to 3 The specific embodiments of this utility model are described below. Figure 1 This utility model provides a structural schematic diagram of a quick insert changing mechanism for injection molds, including a fixed mold core 1, a fixed mold insert 2, a fixed mold frame 3, a long pin 4, a mounting screw 5, and a fixing screw 6. The fixed mold frame 3 has a cavity groove 3-1, the shape of which matches the fixed mold core 1, so that the fixed mold core 1 can be embedded in the cavity groove 3-1. In order to fix the fixed mold core 1 in the cavity groove 3-1, a mounting screw hole is opened at the bottom of the cavity groove 3-1, and the mounting screw 5 fixes the fixed mold core 1 through the mounting screw hole.

[0026] The bottom of the fixed mold frame 3 has an insert groove 3-2 for inserting the fixed mold insert 2. Additionally, the fixed mold core 1 has an insert hole located above the insert groove 3-2. The shapes of both the insert hole and the insert groove 3-2 match the fixed mold insert 2, allowing the fixed mold insert 2 to pass through the insert hole and be inserted into the insert groove 3-2, and to be securely fixed without wobbling, thus achieving the positioning of the fixed mold insert 2. Here, for easy insertion and removal, the top of the fixed mold insert 2 needs to have a protrusion for easy gripping; without this protrusion, a special tool is required for insertion and removal.

[0027] After the fixed mold insert 2 is installed into the insert slot 3-2, it needs to be fixed, which is achieved by using a long pin 4. The lower part of the fixed mold insert 2 has a pin hole, through which the long pin 4 can be inserted to fix the fixed mold insert 2. Here, since the fixing of the fixed mold insert 2 by the long pin 4 requires a very small fitting clearance, in order to ensure that the long pin 4 can be accurately and quickly inserted into the pin hole, a conical or spherical surface needs to be made on the head of the long pin 4 for guidance, making it easier for the head of the long pin 4 to find the position of the pin hole and install it quickly.

[0028] To allow the long pin 4 to be inserted from outside the mold, a pin through hole 3-3 needs to be drilled on the side of the fixed mold frame 3. The axis of the pin through hole 3-3 does not coincide with the axis of the pin hole of the fixed mold insert 2. The lower outer surface of the long pin 4 is in contact with the bottom of the pin through hole 3-3, and the upper outer surface of the long pin 4 is in contact with the bottom of the fixed mold core 1, to ensure that the fixed mold insert 2 can be accurately fixed. In this way, the long pin 4 can pass through the pin through hole 3-3 and into the pin hole to fix the fixed mold insert 2. Figure 3 This is a schematic diagram of the fixed mold frame.

[0029] To ensure the long pin 4 is effectively secured, a fixing screw hole 3-4 needs to be made above the pin through hole 3-3, and the fixing screw hole 3-4 communicates with the pin through hole 3-3. This allows the fixing screw 6 to be installed in the fixing screw hole 3-4 and press against the long pin 4. When the fixing screw 6 is tightened, it will press the long pin 4 firmly, thus securing it. Because the lower outer surface of the long pin 4 fits against the bottom of the pin through hole 3-3, tightening the fixing screw 6 will not bend the long pin 4. Figure 2 A schematic diagram showing the assembly relationship of the fixed mold insert, long pin, and fixing screw.

[0030] When it is necessary to replace the fixed mold insert 2, first loosen the fixing screw 6 to release the fixation of the long pin 4. Then pull out the long pin 4 to release the fixation of the fixed mold insert 2. Next, the fixed mold insert 2 can be pulled out from the fixed mold core 1. Insert the new fixed mold insert 2 into the insert hole of the fixed mold core 1 and insert it into place. Then insert the long pin 4 into the pin through hole 3-3. When the long pin 4 is inserted into the pin hole of the new fixed mold insert 2 and the fixing screw 6 is tightened, the replacement of the fixed mold insert 2 is completed.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick insert changing mechanism for injection molds, characterized in that, The device includes a fixed mold core, a fixed mold insert, a fixed mold frame, a long pin, mounting screws, and fixing screws. The fixed mold core is mounted on the fixed mold frame by the mounting screws. The fixed mold insert is mounted on the fixed mold core. The long pin passes through the fixed mold frame to fix the fixed mold insert. The fixing screws are mounted above the long pin to fix the long pin.

2. The quick insert changing mechanism for injection molds according to claim 1, characterized in that, The fixed mold frame has a cavity groove, and the shape of the cavity groove matches the fixed mold core, which is embedded in the cavity groove.

3. The quick insert changing mechanism for injection molds according to claim 1, characterized in that, The fixed mold insert has a pin hole, through which the long pin passes to fix the fixed mold insert.

4. The quick insert changing mechanism for injection molds according to claim 1, characterized in that, The fixed mold frame has an insert groove, and the fixed mold core has an insert hole. The shapes of the insert groove and the insert hole match the fixed mold insert. The fixed mold insert passes through the insert hole and is inserted into the insert groove to position the fixed mold insert.

5. The quick insert changing mechanism for injection molds according to claim 1, characterized in that, The outer surface of the long pin is in contact with the bottom of the fixed mold core.

6. The quick insert changing mechanism for injection molds according to claim 3, characterized in that, The fixed mold frame has a pin through hole on its side, and the axis of the pin through hole does not coincide with the axis of the pin hole. The long pin passes through the pin through hole and through the pin hole to fix the fixed mold insert.

7. The quick insert changing mechanism for injection molds according to claim 6, characterized in that, A fixing screw hole is provided above the pin through hole, and the fixing screw hole communicates with the pin through hole. The fixing screw is installed above the long pin through the fixing screw hole and presses the long pin to fix the long pin.

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