Injection mold mechanism for straight ejection swing rod

Abstract

A straight ejection swing rod injection mold mechanism comprises straight ejection bases symmetrically arranged on a mold, the straight ejection bases are rotationally connected with straight ejection swing rods, the straight ejection swing rods are sequentially provided with connecting sections, swing sections and straight ejection sections from bottom to top, and the straight ejection sections are sleeved with straight ejection guide blocks fixed to the mold. The end of the straight ejection section is fixedly connected with a straight ejection head, a first swinging inclined face inclining towards the outer side of the swinging section and a second swinging inclined face inclining towards the inner side of the swinging section are sequentially arranged on the swinging section from bottom to top, and the first swinging inclined face and the second swinging inclined face are parallel to each other. And a first guide inclined surface and a second guide inclined surface corresponding to the first swing inclined surface and the second swing inclined surface are respectively arranged on the straight ejection guide block. According to the utility model, in the process of ejecting a product, the product can be ejected by supporting the product in the whole process, so that the product can be effectively prevented from being damaged by pulling in the ejection process.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a direct top swing rod injection mold mechanism. Background Art

[0002] The inclined top is a very common motion mechanism in the design and application of injection molds. The inclined top mechanism is the preferred mechanism for realizing the injection molding of the undercut position of the mold. The ordinary inclined top structure moves the inclined top towards the opening direction of the undercut position while ejecting to realize the ejection and separation from the undercut position. After the product is ejected a short distance by the ordinary inclined top, the product is separated from the inclined top. When continuing to eject, the inclined top is ejecting empty and has no relation with the product ejection. Since there are still many ribs in the middle of the product flange that have not been completely separated, it will cause difficulties in ejecting the product, and forcibly ejecting easily scratches the product. As shown in the attached Figure 10 For the ordinary inclined top shown, during the ejection process of the inclined top rod, the inclined top rod will have a lateral displacement, which will cause the separation between the direct top head and the product, and the product will lose the support of the direct top head and appear in the situation of empty ejection, thus causing difficulties in ejecting the product, and forcibly ejecting easily scratches the product. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a direct top swing rod injection mold mechanism to solve the technical problems proposed in the above background art.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A direct top swing rod injection mold mechanism includes direct top seats symmetrically arranged on the mold. A direct top swing rod is rotatably connected to the direct top seats. The direct top swing rod is sequentially provided with a connecting section, a swinging section, and a direct top section from bottom to top. A direct top guide block fixed on the mold is sleeved on the direct top section. A direct top head is fixedly connected to the end of the direct top section. The swinging section is sequentially provided with a first swinging inclined surface inclined outward of the swinging section and a second swinging inclined surface inclined inward of the swinging section from bottom to top. The first swinging inclined surface and the second swinging inclined surface are parallel to each other. The direct top guide block is respectively provided with a first guide inclined surface and a second guide inclined surface corresponding to the first swinging inclined surface and the second swinging inclined surface.

[0006] In the above summary of the utility model, further, a direct top rotating shaft is installed on the direct top seat, and the direct top swing rod is fixedly installed on the direct top rotating shaft through a first pin.

[0007] In the above summary of the utility model, further, a limit pin shaft is fixedly arranged on the outer side of the direct top seat, and a limit groove cooperating with the limit pin shaft is arranged on the direct top rotating shaft.

[0008] In the above summary of the utility model, further, the direct top head is fixedly installed on the end of the direct top section through a second pin.

[0009] The beneficial effects of the present utility model are as follows:

[0010] During the process of ejecting the product, the present utility model can support the product throughout the process, thereby effectively preventing the product from being scratched during the ejection process. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a schematic structural diagram of the swing section of the direct ejector swing rod of the present utility model;

[0013] Figure 3 is a schematic structural diagram of the direct ejector guide block of the present utility model;

[0014] Figure 4 is Figure 1 the A-A sectional view of

[0015] Figure 5 is the ejection state diagram of the present utility model;

[0016] Figure 6 is Figure 5 the partial enlarged view of part B in

[0017] Figure 7 is another ejection state diagram of the present utility model;

[0018] Figure 8 is Figure 7 the partial enlarged view of part C in

[0019] Figure 9 is Figure 4 the partial enlarged view of part A in

[0020] Figure 10 is the schematic structural diagram of the angled ejector in the prior art.

[0021] In the figure, 1 - direct ejector head, 2 - direct ejector guide block, 2.1 - first guide inclined plane, 2.2 - second guide inclined plane, 3 - direct ejector swing rod, 3.1 - connecting section, 3.2 - swing section, 3.3 - direct ejector section, 3.4 - first swing inclined plane, 3.5 - second swing inclined plane, 4 - direct ejector seat, 5 - direct ejector rotating shaft, 6 - limit pin shaft, 7 - limit groove, 8 - first pin, 9 - second pin. Detailed Implementation Manner

[0022] The following describes the implementation modes of the present utility model through specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0023] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0024] Embodiment:

[0025] A direct-top swing rod injection mold mechanism. Refer to the attached Figure 1 - attached Figure 2 As shown, it includes direct-top seats 4 symmetrically arranged on the mold. A direct-top swing rod 3 is rotatably connected to the direct-top seats 4. The direct-top swing rod 3 is sequentially provided with a connecting section 3.1, a swinging section 3.2, and a direct-top section 3.3 from bottom to top. A direct-top guide block 2 fixed on the mold is sleeved on the direct-top section 3.3. The end of the connecting section 3.1 is rotatably connected to the direct-top seat 4. Specifically, refer to the attached Figure 4 and attached Figure 9 As shown, a direct-top rotating shaft 5 is installed on the direct-top seat 4. The connecting section 3.1 of the direct-top swing rod 3 is fixedly installed on the direct-top rotating shaft 5 through a first pin 8. The direct-top swing rod 3 can rotate to both sides of the direct-top seat 4 through the direct-top rotating shaft 5. Continuing to refer to the attached Figure 1 As shown, a direct-top head 1 is fixedly connected to the end of the direct-top section 3.3. The direct-top head 1 is used to lift the injection molded product. Refer to the attached Figure 4 As shown, the direct-top head 1 is fixedly installed on the end of the direct-top section 3.3 through a second pin 9. Refer to the attached Figure 2 As shown, a first swinging inclined surface 3.4 inclined outward of the swinging section 3.2 and a second swinging inclined surface 3.5 inclined inward of the swinging section 3.2 are sequentially arranged on the swinging section 3.2 from bottom to top. The first swinging inclined surface 3.4 and the second swinging inclined surface 3.5 are parallel to each other, so that the connecting section 3.1, the swinging section 3.2, and the direct-top section 3.3 as a whole form a Z-shaped structure. Referring again to the attached Figure 3 As shown, a first guiding inclined surface 2.1 and a second guiding inclined surface 2.2 corresponding to the first swinging inclined surface 3.4 and the second swinging inclined surface 3.5 are respectively arranged on the direct-top guide block 2.

[0026] In the specific working process of the present utility model, after the product is injection molded, the straight ejection section 3.3 of the straight ejection swing rod 3 is ejected upward under the guidance of the straight ejection guide block 2. When the swing section 3.2 of the straight ejection swing rod 3 moves to the straight ejection guide block 2, referring to the attached Figure 5 and the attached Figure 6 As shown, the first swing inclined surface 3.4 of the swing section 3.2 contacts the first guide inclined surface 2.1 of the straight ejection guide block 2. The straight ejection swing rod 3 is tilted outward with the straight ejection rotating shaft 5 as the fulcrum under the extrusion of the first guide inclined surface 2.1, so that the straight ejection head 1 is separated from the bottom surface and the side undercut surface of the product. When the straight ejection swing rod 3 is tilted to a certain extent, the second swing inclined surface 3.5 abuts against the second guide inclined surface 2.2 of the straight ejection guide block 2 (as shown in the attached Figure 7 and the attached Figure 8 As shown), and the product ejection is completed. It should be noted that the tilting angle of the straight ejection swing rod 3 can be designed according to the inclination angles of the first swing inclined surface 3.4 and the second swing inclined surface 3.5. The tilting angle of the straight ejection swing rod 3 shown in the attached Figure 7 and the attached Figure 8 is 2°. In actual application, the tilting angle of the straight ejection swing rod 3 can be designed according to the angle of the side undercut surface of the product. During resetting, the straight ejection swing rod 3 moves downward. The straight ejection swing rod 3 is tilted inward under the extrusion of the second swing inclined surface 3.5 until the straight ejection swing rod 3 is completely straightened. Finally, it continues to reset downward until the entire reset action ends, and thus the entire reset process is completed. Compared with the traditional inclined ejection method, the ejection method of the present novel can effectively overcome the drawback of the straight ejection head 1 being separated from the product during the ejection process, resulting in an empty ejection, and further can solve the problem that the product is easily scratched when the buckle is ejected from the mold.

[0027] It should be noted that for the above embodiments, referring to the attached Figure 9 As shown, a limit pin shaft 6 is fixedly arranged on the outside of the straight ejection seat 4, and a limit groove 7 cooperating with the limit pin shaft is arranged on the straight ejection rotating shaft 5. When the straight ejection swing rod 3 is tilted outward, the limit pin shaft 6 will abut against the inner wall of the limit groove 7, playing a limiting role on the straight ejection swing rod 3 and strengthening the stability of the straight ejection swing rod 3 when it is tilted.

[0028] The above embodiments only represent the specific implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A straight top rocker injection mold mechanism, characterized in that: The invention comprises a straight top seat symmetrically arranged on the mold, wherein the straight top seat is rotatably connected with a straight top swing arm, wherein the straight top swing arm is sequentially provided with a connecting section, a swing section and a straight top section from bottom to top, wherein the straight top section is provided with a straight top guide block fixed on the mold, wherein the end of the straight top section is fixedly connected with a straight top head, wherein the swing section is sequentially provided with a first swinging inclined surface inclined toward the outer side of the swinging section and a second swinging inclined surface inclined toward the inner side of the swinging section from bottom to top, wherein the first swinging inclined surface and the second swinging inclined surface are parallel to each other, and wherein the straight top guide block is respectively provided with a first guiding inclined surface and a second guiding inclined surface parallel to the first swinging inclined surface and the second swinging inclined surface.

2. A straight top rocker injection mold mechanism according to claim 1, characterized in that: A straight top rotating shaft is installed on the straight top seat, and a straight top swing arm is fixedly installed on the straight top rotating shaft through a first pin.

3. A straight top rocker injection mold mechanism according to claim 2, characterized in that: A limit pin is fixedly arranged on the outer side of the straight top seat, and a limit groove cooperating with the limit pin is arranged on the straight top rotating shaft.

4. The straight top rocker injection mold mechanism according to claim 1, characterized in that: The straight top head is fixedly mounted on the end of the straight top section by a second pin.

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