A kind of inclined top guide block mechanism and injection mold

Abstract

The utility model relates to a guide block mechanism for an inclined ejector, and the injection mold includes an inclined ejector; a first guide block, including a first protrusion, a second protrusion and a guide block, the first protrusion and the second protrusion are respectively fixedly arranged on both sides of the guide block; and a second guide block, the second guide block is abutted and connected with the first protrusion and the second protrusion; wherein the first guide block and the second guide block form a guide portion, the inclined ejector is penetrated through the guide portion and can slide in the guide portion, and the first protrusion, the second protrusion, the guide block and the second guide block are all provided with inclined surfaces. During the injection molding process, the mold will be affected by high temperature and thermal expansion will occur. By providing a gap by providing an inclined surface on the first guide block and the second guide block, they can move relatively slightly during thermal expansion, thereby avoiding stress or damage caused by thermal expansion, and further avoiding the problems of the inclined ejector not retreating, the ejector pin breaking, and the unsmooth movement of the inclined ejector caused by the stuck inclined ejector.

Description

Technical Field

[0001] The utility model relates to the field of mold manufacturing, in particular to an inclined top guide block mechanism and an injection mold. Background Art

[0002] With the development of science and technology, the application of plastic products is constantly expanding. The market demand for plastic products is also growing, which makes the demand for high-quality plastic molding molds in the electronic equipment industry and daily plastic products that use plastic products continue to rise. The plastic mold manufacturing industry has become a pillar industry in my country. Molds are the mother of industry. Faced with the endless succession of high-tech plastic product equipment, thousands of design concepts, and a variety of product structures, plastic mold manufacturers, as the backbone of the mold manufacturing industry, not only need to ensure the life, stability, and high-quality molded product production of the mold, but also need to focus on the upward adjustment of the mold structure and the improvement of professional technical level.

[0003] At present, for the ejector system in the plastic mold structure, after the mold design and production is completed, when the trial product is taken out, the inclined ejector will not retreat, the ejector pin will be stuck, the ejector pin will hit, and the mold will hit. This greatly affects the qualified cycle of the plastic mold and the stability of the later production. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a tilting top guide block mechanism that solves at least one of the above problems, using an injection mold, including:

[0005] Sloping roof;

[0006] A first guide block, comprising a first protrusion, a second protrusion and a guide block, wherein the first protrusion and the second protrusion are respectively fixedly disposed on two sides of the guide block;

[0007] and a second guide block, the second guide block being in contact with the first protrusion and the second protrusion;

[0008] The first guide block and the second guide block form a guide portion, the inclined top is penetrated through the guide portion and can slide in the guide portion, and the first protrusion, the second protrusion, the guide block and the second guide block are all provided with inclined surfaces.

[0009] Preferably, the first guide block and the second guide block are both provided with through holes for fixing the first guide block and the second guide block at a preset position.

[0010] Preferably, both the first protrusion and the second guide block are provided with a groove.

[0011] Preferably, the inclination angle of the inclined surface is 9°.

[0012] The utility model also provides an injection mold, comprising an inclined top guide block mechanism with any one of the above technical features.

[0013] Preferably, it also includes a limiting groove for limiting the inclined top guide block mechanism.

[0014] Preferably, it also includes a concave hole, which is arranged in the limiting groove, and when the inclined top guide block mechanism is placed in the limiting groove, the concave hole and the groove form a gap hole.

[0015] During the injection molding process, the mold will be affected by high temperature and thermal expansion will occur. By setting the bevels on the first guide block and the second guide block to create a gap, they can move relatively slightly during thermal expansion, thereby avoiding stress or damage caused by thermal expansion, and further avoiding the problems of the lifter not being able to retreat, the ejector pin breaking, and the lifter not moving smoothly due to the lifter getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 1. Sloped top; 2. First guide block; 21. First convex block; 22. Second convex block; 23. Guide block; 3. Second guide block; 4. Guide part; 5. Through hole; 6. Groove; 7. Limiting groove; 8. Concave hole; 9. Injection mold.

[0017] Figure 1 It is a structural schematic diagram of the inclined top guide block mechanism of the first embodiment of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the first guide block and the second guide block of the first embodiment of the utility model.

[0019] Figure 3 It is a structural schematic diagram of a second embodiment of the utility model in which an inclined top guide block mechanism is arranged in an injection mold.

[0020] Figure 4 It is a structural schematic diagram of the injection mold of the second embodiment of the utility model.

[0021] Figure 5 yes Figure 4 A is an enlarged view. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model inclined top guide block mechanism and injection mold are further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0025] See also Figures 1 to 5 The guide block mechanism of the inclined top 1 of the utility model embodiment uses an injection mold 9, and is characterized in that it includes an inclined top 1; a first guide block 2, including a first protrusion 21, a second protrusion 22 and a guide block 23, the first protrusion 21 and the second protrusion 22 are respectively fixedly arranged on both sides of the guide block 23; and a second guide block 3, the second guide block 3 is abutted and connected with the first protrusion and the second protrusion; wherein the first guide block 2 and the second guide block 3 form a guide portion 4, the inclined top 1 is penetrated by the guide portion 4 and can slide on the guide portion 4, and the first protrusion 21, the second protrusion 22, the guide block 23 and the second guide block 3 are all provided with inclined surfaces.

[0026] In the above embodiment, since the first protrusion 21 and the second protrusion 22 are protruding relative to the guide block 23, the guide block 23 and the first protrusion 21 and the second protrusion 22 form a groove 6, and the first protrusion 21 and the second protrusion 22 are abutted and connected to the second guide block 3, so that a guide portion 4 is formed between the first guide block 2 and the second guide block 3, and the first protrusion 21 and the second protrusion 22 and the second guide block 3 are provided with inclined surfaces, so that there is a gap when the abutting connection is made, and when the inclined ejector 1 moves on the guide portion 4, it will cause a relatively slight displacement between the first guide block 2 and the second guide block 3, so that the inclined ejector 1 can move more flexibly. In the normal trial mold making process, when the mold is full of glue, the front and rear molds are opened first, and then the product is ejected. During the ejection process, the split inclined guide structure is smoother and more flexible during the movement, avoiding the problems of the inclined ejector 1 not being able to retreat, the ejector pin breaking, and the inclined ejector 1 not moving smoothly due to the stuck inclined ejector 1.

[0027] Please refer to Figures 1 to 5 In another embodiment, the first guide block 2 and the second guide block 3 are both provided with through holes 5 for fixing the first guide block 2 and the second guide block 3 at a preset position.

[0028] In the above embodiment, by providing through holes 5 on the first guide block 2 and the second guide block 3, they can be conveniently fixed at a preset position. These through holes 5 will cooperate with the mold base or other fixing devices to ensure the stability and position accuracy of the guide blocks. During the installation process, these through holes 5 not only play a fixing role, but can also be used to fine-tune the position of the first guide block 2 and the second guide block 3 to ensure the alignment and matching accuracy between them.

[0029] Please refer to Figures 1 to 5 In another embodiment, both the first protrusion and the second guide block 3 are provided with a groove 6.

[0030] In the above embodiment, the groove 6 is arranged at the position where the first protrusion and the second guide block 3 are close to the injection mold 9, so that there is a gap between the first guide block 2 and the second guide block 3 and the injection mold 9, so that the first guide block 2 and the second guide block 3 can move relatively slightly with the injection mold 9, so that the first guide block 2 and the second guide block 3 can move slightly relative to each other. During the injection molding process, the mold will be affected by high temperature and thermal expansion will occur. By setting the gap on the first guide block 2 and the second guide block 3, they can move relatively slightly during thermal expansion, thereby avoiding stress or damage caused by thermal expansion. During the assembly process, assembly pressure may be generated due to the matching tolerance and material properties between the components. Setting the gap can reduce this assembly pressure, making the assembly process of the mold smoother. The slight moving gap makes the mold more convenient during installation and calibration. The operator can use these gaps to make fine adjustments to ensure the precise alignment and positioning of the mold.

[0031] Please refer to Figures 1 to 5 In another embodiment, the inclination angle of the slope is 9°.

[0032] In the above embodiment, the inclination angle of the inclined surface determines the sliding mode and effect of the inclined ejector 1 in the guide portion 4. The inclination angle of 9° is selected to ensure that the inclined ejector 1 can slide smoothly and stably under the ejection force to avoid jamming or excessive friction. A moderate inclination angle helps to reduce the friction between the inclined ejector 1 and the guide block, thereby reducing wear and extending the service life. The inclination angle of 9° can effectively reduce unnecessary friction while ensuring smooth movement.

[0033] The utility model also provides an injection mold 9, comprising a guide block mechanism of a tilting top 1 having any one of the above technical features.

[0034] The inclined top 1 guide block mechanism in the injection mold 9 in this embodiment has the same structure as the inclined top 1 guide block mechanism in the above-mentioned embodiment and is implemented with the same scheme. Therefore, in this embodiment of the injection mold 9, the inclined top 1 guide block mechanism therein will not be described in detail one by one.

[0035] Please refer to Figures 1 to 5 In another embodiment, it also includes a limiting groove 7 for limiting the guide block mechanism of the inclined top 1.

[0036] In the above embodiment, in order to enhance the positioning and restriction of the guide block mechanism of the inclined top 1, the mold is referred to Figures 1 to 5In another embodiment, a limit groove 7 is included. The limit groove 7 is mainly used to limit the position of the guide block mechanism of the inclined top 1 to ensure its stability and accuracy during the injection molding process. The limit groove 7 can ensure that the guide block mechanism of the inclined top 1 will not move or deviate unnecessarily due to external force or internal stress. This helps to ensure the smooth progress of the injection molding process and reduce the possibility of product defects and production interruptions.

[0037] Please refer to Figures 1 to 5 In another embodiment, it further includes a concave hole 8, which is arranged in the limiting groove 7. When the guide block mechanism of the inclined top 1 is placed in the limiting groove 7, the concave hole 8 and the groove 6 form a gap hole.

[0038] In the above embodiment, the stability of the guide block mechanism of the inclined top 1 in the injection mold 9 is further enhanced. Through these clearance holes, it can be ensured that the mechanism will not move or deflect excessively during the injection molding process, thereby ensuring the consistency and accuracy of the product. The presence of clearance holes can also help reduce friction and stress concentration, further protect the mechanism and increase its service life. At the same time, by reasonably designing the size and position of the clearance holes, the overall performance and efficiency of the mold can be optimized. In summary, this design of the injection mold 9 including the limit groove 7 and the recessed hole 8, combined with the above-mentioned guide block mechanism of the inclined top 1, provides a solution with stable structure and superior performance, which is suitable for various high-precision and high-efficiency injection molding production needs.

[0039] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A tilting guide block mechanism, using an injection mold, characterized in that: include: Sloping roof; A first guide block, comprising a first protrusion, a second protrusion and a guide block, wherein the first protrusion and the second protrusion are respectively fixedly disposed on two sides of the guide block; and a second guide block, the second guide block being in contact with the first protrusion and the second protrusion; The first guide block and the second guide block form a guide portion, the inclined top is penetrated through the guide portion and can slide in the guide portion, and the first protrusion, the second protrusion, the guide block and the second guide block are all provided with inclined surfaces.

2. The inclined top guide block mechanism according to claim 1, characterized in that: The first guide block and the second guide block are both provided with through holes for fixing the first guide block and the second guide block at a preset position.

3. The inclined top guide block mechanism according to claim 1, characterized in that: The first protrusion and the second guide block are both provided with a groove.

4. The inclined top guide block mechanism according to claim 1, characterized in that: The inclination angle of the inclined surface is 9°.

5. An injection mold, characterized in that: Including the inclined top guide block mechanism described in any one of claims 1 to 4.

6. The injection mold according to claim 5, characterized in that: It also includes a limiting groove for limiting the inclined top guide block mechanism.

7. The injection mold according to claim 6, characterized in that: It also includes a concave hole, which is arranged in the limiting groove. When the inclined top guide block mechanism is placed in the limiting groove, the concave hole and the groove form a gap hole.

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