Plastic mold

Abstract

The utility model relates to a plastic mold which comprises a male mold provided with a driving rod; the female die is provided with a groove and a sliding groove which is transversely formed, and the sliding groove is communicated with the groove; the sliding block is arranged in the sliding groove; when the sliding block slides towards the inner side of the groove to the tail end of the sliding groove, the outer surface of the sliding block and the groove wall of the groove are sequentially connected to form a cavity attached to the appearance of a product. A guide hole matched with the driving rod is upwards formed in the sliding block; and in the sliding direction of the sliding groove, the upper end of the guide hole is inclined towards one side, deep into the groove, of the guide hole. According to the utility model, the sliding block is arranged on the female die, and when a shell-shaped product with the side wall inclining towards the inner side is manufactured, the molding part of the male die can extend into the groove of the female die, and then the sliding block slides, so that the surface of the sliding block, the groove of the female die and the male die enclose the molding cavity, and the shell-shaped product with the side wall inclining towards the inner side is molded.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a plastic mold. Background Art

[0002] Plastic molds play a vital role in the production of plastic products. Through mold production, plastic products of the same shape can be produced in large quantities, realizing automated production and saving costs and time.

[0003] When a plastic mold is used to produce a plastic shell, the male mold needs to extend into the groove of the female mold to enclose and form a cavity. However, the side walls of some plastic shells are tilted inward. When the inclination angle of the side wall is small, the molding surfaces of the male mold and the female mold can be set to tilt in the corresponding direction to enclose and form a cavity with inclined side walls. When the inclination angle of the side wall is large, the inclination angle of the molding surfaces of the male mold and the mold also needs to be increased. At this time, the notch of the female mold's groove is smaller than the part of the male mold extending into the groove, and the mold cannot be closed.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a plastic mold and a plastic shell with an inner side inclined on the production line.

[0006] The technical solution of the utility model is as follows:

[0007] A plastic mold for processing a plastic shell, comprising: a male mold provided with a driving rod; a female mold provided with a groove and a transversely arranged slide groove, wherein the slide groove is connected to the groove; a slider provided in the slide groove; when the slider slides toward the inner side of the groove to the end of the slide groove, the outer surface of the slider and the groove wall of the groove are connected to form a cavity that fits the shape of the product; the slider is provided with a guide hole upward to match the driving rod; wherein, along the sliding direction of the slide groove, the upper end of the guide hole is inclined toward a side that penetrates deeper into the groove; when the driving rod extends into the guide hole, the slider is driven to slide along the slide groove toward a side that penetrates deeper into the groove.

[0008] The beneficial technical effects of the utility model are as follows:

[0009] (1) The plastic mold of the utility model is provided with a slider on the mother mold, and the slider slides along the slide groove to disassemble the cavity or piece together the cavity. When making a shell-shaped product with a side wall inclined inward, the cavity part that forms the inclined side wall can be set on the slider. In this way, the molding of the male mold can be first extended into the groove of the female mold, and then the slider is slid so that the surface of the slider, the groove of the female mold and the male mold surround the molding cavity, forming a shell-shaped product with a side wall inclined inward.

[0010] (2) Furthermore, a guide hole with an upper end inclined toward the groove is provided on the slider. When the driving rod provided on the male mold extends into the guide hole, the slider is pushed to slide along the slide groove toward the inner side of the groove. In this way, when the male mold and the female mold are combined, the slider can automatically fit the groove along the slide groove to form a cavity, thereby simplifying the process.

[0011] (3) Furthermore, a compressed elastic member is provided between the slider and the female mold. When the male mold and the female mold are separated, the elastic member pushes the slider to slide to the outside of the groove, returning to the state before the male mold and the female mold are closed, thereby improving the automation level of the equipment and simplifying the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The exploded structure schematic diagram of the plastic mold of the utility model is shown.

[0013] Figure 2 A top view of a female mold in a plastic mold of the utility model is shown.

[0014] Figure 3 A cross-sectional view of a female mold in a plastic mold of the present invention in direction A is shown.

[0015] Markings in the accompanying drawings:

[0016] 1. Male mold; 11. Driving rod; 12. Through hole; 13. Positioning protrusion; 2. Molding part; 21. Guide column; 3. Female mold; 31. Cavity; 32. Slide groove; 321. Guide piece; 33. Notch; 34. Positioning groove; 4. Slider; 41. Guide hole; 42. Extension part; 43. Allowance groove; 5. Elastic piece. DETAILED DESCRIPTION

[0017] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0018] In the description of the present invention, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] Figure 1 The exploded structure schematic diagram of the plastic mold of the utility model is shown. Figure 2 A top view of a female mold in a plastic mold of the utility model is shown. Figure 3 The cross-sectional view of the female mold in the plastic mold of the utility model in the direction A is shown. Please refer to Figure 1 , Figure 2 and Figure 3 A plastic mold for processing a plastic shell, comprising a male mold 1, a female mold 3 and a slider 4. A driving rod 11 is provided on the male mold 1, a groove and a horizontally arranged slide groove 32 are provided on the female mold 3, the slide groove 32 is connected to the groove, and the slider 4 is arranged in the slide groove 32. When the slider 4 slides to the inner side of the groove to the end of the slide groove 32, the outer surface of the slider 4 and the groove wall of the groove are connected to form a cavity 31 that fits the shape of the product. The cavity 31 can be disassembled or pieced together by sliding the slider 4 along the slide groove 32. When making a shell-shaped product with a side wall inclined inward, the part of the cavity 31 that forms the inclined side wall can be set on the slider 4. In this way, the molding of the male mold 1 can be first extended into the groove of the female mold 3, and then the slider 4 is slid, so that the surface of the slider 4, the groove of the female mold 3 and the molding part 2 of the male mold 1 surround the molding cavity, and the shell-shaped product with a side wall inclined inward is molded.

[0020] The slider 4 is provided with a guide hole 41 upwardly facing the driving rod 11, and the upper end of the guide hole 41 is inclined toward the side that goes deep into the groove along the sliding direction of the slide groove 32. When the driving rod 11 extends into the guide hole 41, it pushes the slider 4 to slide along the slide groove 32 toward the inner side of the groove. In this way, when the male mold 1 and the female mold 3 are molded together, the slider 4 can automatically fit the groove along the slide groove 32 to form a cavity, simplifying the process.

[0021] The specific structures of the male mold 1 and the female mold 3 are described below:

[0022] Please refer to Figure 1, the length of the driving rod 11 in the horizontal direction is equal to the stroke of the slider 4 in the slide groove 32. After the driving rod 11 is fully extended into the guide hole 41, that is, after the male mold 1 and the female mold 3 are molded together, the slider 4 slides to the inner side of the groove to the end of the slide groove 32, and the outer surface of the slider 4 and the groove wall of the groove are connected to form a cavity 31 that fits the product shape. The male mold 1 is provided with a molding part 2 in a split manner to increase the flexibility of the mold. The molding part 2 is connected with a guide column 21 to ensure the stable operation of the molding part 2. The male mold 1 is provided with a through hole 12 to allow the guide column 21 to pass through, and the molding part 2 can also be positioned along the through hole 12. A positioning protrusion 13 is provided at one end of the male mold 1 close to the female mold 3, and a positioning groove 34 is provided on the female mold 3 to cooperate with the positioning protrusion 13. The notch of the positioning groove 34 is larger than the bottom plate of the positioning protrusion 13 to balance the dimensional error and assembly error of small size.

[0023] The specific structures of the slider 4, the slide groove 32 and the groove are described below:

[0024] Please refer to Figure 3 , and also includes an elastic member 5, which is arranged between the slider 4 and the female mold 3 along the sliding direction of the slide groove 32. The elastic member 5 is in a compressed state. When the male mold 1 and the female mold 3 are separated, the elastic member 5 will push the slider 4 to slide to the outside of the groove, returning to the state before the male mold 1 and the female mold 3 are molded, improving the automation level of the equipment and simplifying the process. The end of the guide hole 41 is connected to the residual groove 43, and the residual groove 43 is provided on the slider 4. The residual groove 43 is provided on the slider 4 to reduce the weight of the slider 4. At the same time, it is avoided that the end of the driving rod 11 and the slider 4 interfere. A notch 33 is provided at the junction of the slide groove 32 and the groove, and an extension 42 matching the notch 33 is provided on the slider 4. When the slider 4 moves to the groove to the end of the slide groove 32, the extension 42 will be embedded in the notch 33, enhancing the sealing between the slider 4 and the female mold 3, and ensuring the sealing performance of the cavity. A guide member 321 is provided in the slide groove 32 to increase the stability of the slider 4 when sliding in the slide groove 32.

[0025] The specific working process of the utility model is as follows:

[0026] When not working, the male mold 1 and the female mold 3 are separated, and under the elastic force of the elastic member 5, the slider 4 moves to the side away from the groove to the end of the slide groove 32. When molding a product, the male mold 1 and its molding part 2 move down together, and the molding below the male mold 1 first enters the groove to reach the predetermined position and stops moving. The male mold 1 outside the molding part 2 continues to move down, and during the movement, the driving rod 11 extends into the wire hole, pushing the slider 4 to move along the slide groove 32 to the inside of the groove until the male mold 1 and the female mold 3 are completely molded. At this time, the slider 4 moves to the inside of the groove to the end of the slide groove 32, and the surface of the slider 4, the groove of the female mold 3 and the male mold 1 surround the molding cavity. After molding is completed, the male mold 1 outside the molding part 2 moves up first, and at this time the driving rod 11 moves out of the guide hole 41. Under the elastic force of the elastic member 5, the slider 4 moves to the side away from the groove to the end of the slide groove 32. Then remove the molded product.

[0027] It can be seen that when the above-mentioned plastic mold is used to make a shell-shaped product with a side wall inclined inward, the cavity 31 portion for molding the inclined side wall can be set on the slider 4. In this way, the molding of the male mold 1 can be first extended into the groove of the female mold 3, and then the slider 4 is slid, so that the surface of the slider 4, the groove of the female mold 3 and the male mold 1 surround the molding cavity, and the shell-shaped product with a side wall inclined inward is molded.

[0028] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A plastic mold for processing a plastic housing, characterized in that: include: A male mold is provided with a driving rod; The mother mold is provided with a groove and a transversely arranged slide groove, wherein the slide groove is connected to the groove; A slider is arranged in the slide groove; when the slider slides to the inner side of the groove to the end of the slide groove, the outer surface of the slider and the groove wall of the groove are connected to form a cavity that fits the shape of the product; the slider is provided with a guide hole upward to match the driving rod; Wherein, along the sliding direction of the slide groove, the upper end of the guide hole is inclined toward the side that goes deeper into the groove; when the driving rod extends into the guide hole, the sliding block is driven to slide along the slide groove toward the side that goes deeper into the groove.

2. The plastic mold according to claim 1, characterized in that: The length of the driving rod in the horizontal direction is equal to the stroke of the sliding block in the sliding groove.

3. The plastic mold according to claim 1, characterized in that: The male mold is provided with a molding part in a split manner.

4. The plastic mold according to claim 3, characterized in that: The forming part is connected with a guide column.

5. The plastic mold according to claim 1, characterized in that: It also includes an elastic member, which is arranged between the sliding block and the mother mold along the sliding direction of the sliding groove; the elastic member is in a compressed state.

6. The plastic mold according to claim 1, characterized in that: The end of the guide hole is connected to a margin groove, and the margin groove is arranged on the sliding block.

7. The plastic mold according to claim 1, characterized in that: A notch is arranged at the junction of the slide slot and the groove, and an extension portion matching the notch is arranged on the slider.

8. The plastic mold according to claim 1, characterized in that: A guide piece is arranged in the slide groove.

9. The plastic mold according to claim 1, characterized in that: A positioning protrusion is arranged at one end of the male mold close to the female mold, and a positioning groove is arranged on the female mold to match the positioning protrusion.

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