Inclined ejector rod universal guide sliding mechanism for automobile interior part injection mold

Abstract

This utility model provides a universal sliding mechanism for an injection mold of automotive interior parts, comprising an injection mold body with an upper injection mold and a lower injection mold, and two transverse guide blocks. The output end of a stroke cylinder is movably connected to a universal sliding block via a connecting shaft. The universal sliding block is guided in the guide groove of the transverse guide block. Each transverse guide block has a guide groove in its middle. A moving block is set in the middle of the universal sliding block and slides inside the guide groove. Stroke sensors are set at both ends of each transverse guide block, with the contact portion of the stroke sensor corresponding to the moving block. This utility model has a good stroke limiting effect, enabling movement within a certain stroke range and avoiding damage caused by excessive stroke.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, and relates to the universal guide sliding mechanism of the inclined ejector rod of the injection mold for automotive interior parts. Background Technology

[0002] Injection molding is used to produce plastic products, such as CD case covers in automotive interior parts. For easy and secure assembly, undercuts are incorporated around the perimeter of the CD case cover. These undercuts have a large angle, and at corners, they have double-sided bevels, requiring double-sided ejector pins for demolding. Ordinary ejector pin structures cannot achieve this double-sided bevel. If two sets of ejector pins are used, limitations in machining precision can easily lead to loose assembly between the two sets, leaving gaps. During demolding, the ejector pins can easily knock over the undercuts, causing product damage, high scrap rates, and increased production costs.

[0003] For this purpose, patent publication number CN205522342U discloses a universal guide sliding mechanism for the inclined ejector rod of an injection mold for automotive interior parts. The universal inclined slider of this solution adopts a movable connection. During the upward ejection process, the inclined ejector block is also pulled. The inclined ejector block drives the universal inclined slider to swing through the inclined ejector rod, automatically adjusting the angle of the inclined ejector block so that it fits the bidirectional inclined surface of the corner of the inverted part. The inverted part will not be damaged, and the purpose of smooth demolding is achieved.

[0004] The drawback of the sliding mechanism disclosed in the above scheme is that the stroke of the slider cannot be effectively controlled in the injection mold of automotive interior parts, and it is easy to collide with the injection mold, causing damage to the slider or the mold. To address this, we have designed a universal sliding mechanism for the inclined ejector rod of the injection mold for automotive interior parts. Summary of the Invention

[0005] The purpose of this invention is to provide a universal guide sliding mechanism for the inclined ejector rod of an injection mold for automotive interior parts, in order to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solution: a universal guide sliding mechanism for an inclined ejector rod of an automotive interior part injection mold, comprising an automotive interior part injection mold body having an upper injection mold and an lower injection mold, wherein stroke cylinders are provided in the middle of both sides of the upper injection mold of the automotive interior part injection mold body, and further comprising two transverse guide blocks, the two transverse guide blocks being arranged on both sides of the upper injection mold of the automotive interior part injection mold body, wherein the output end of the stroke cylinder is movably connected to a universal sliding connecting block through a connecting shaft, the universal sliding connecting block being guided in the guide groove of the transverse guide block, a guide groove being opened in the middle of each transverse guide block, a moving block being provided in the middle of the universal sliding connecting block and the moving block sliding inside the guide groove, and stroke sensors being provided at both ends of each transverse guide block such that the contact part of the stroke sensor corresponds to the moving block.

[0007] Wherein: the sliding opening groove of the universal sliding connecting block is distributed at an incline, and the thickness of the sliding opening groove decreases along the direction closer to the stroke cylinder.

[0008] The aforementioned universal guide sliding mechanism for the inclined ejector pin of the automotive interior part injection mold also includes an inclined ejector pin portion. A molding connection insert is provided at the front end of the inclined ejector pin portion, and this molding connection insert corresponds to the mold cavity of the lower injection mold of the automotive interior part injection mold. The purpose of this design is to achieve good participation in the molding process, allowing the molding connection insert at the front end of the inclined ejector pin portion to participate in the molding of the automotive interior part.

[0009] In the aforementioned universal sliding mechanism for the inclined ejector pin of the automotive interior parts injection mold, one end of the inclined ejector pin is provided with a sliding groove contact portion, and the inclined ejector pin is positioned in the sliding opening groove at the bottom of the universal sliding connecting block through the sliding groove contact portion. This design aims to achieve good guiding motion accuracy.

[0010] In the aforementioned universal sliding mechanism for the inclined ejector rod of the automotive interior parts injection mold, sliding planes are provided on both sides of the bottom of the universal sliding connecting block, and a movable slot is provided between the sliding groove contact part and the inclined ejector rod part. The protrusion of the sliding plane slides in the movable slot. The purpose of this design is to ensure good smoothness of movement between the universal sliding connecting block and the inclined ejector rod part and to prevent separation during movement.

[0011] In the aforementioned universal guide sliding mechanism for the inclined ejector pin of the automotive interior parts injection mold, an inclined ejector pin guide plate is installed at the top of the inclined ejector pin, and the inclined ejector pin guide plate is connected to the transverse guide block. This design aims to provide excellent guidance, ensuring good guidance of the inclined ejector pin during movement.

[0012] Compared with the prior art, the advantages of the universal sliding mechanism of the inclined ejector rod of the automotive interior part injection mold of this utility model are as follows: by arranging the transverse guide blocks on both sides of the upper injection mold of the automotive interior part injection mold, the universal sliding connecting block is guided in the guide groove of the transverse guide block, the middle of each transverse guide block is opened with a guide groove, the middle of the universal sliding connecting block is set with a moving block and the moving block slides inside the guide groove, and both ends of each transverse guide block are set with stroke sensors so that the contact part of the stroke sensor corresponds to the moving block. This has a good stroke limiting effect, can move within a certain stroke range, and avoids damage caused by excessive stroke. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the universal sliding mechanism of the inclined ejector rod of the injection mold for automotive interior parts.

[0014] Figure 2This is a three-dimensional structural diagram of the transverse guide slider of the inclined ejector rod universal guide sliding mechanism of the injection mold for automotive interior parts.

[0015] Figure 3 This is a three-dimensional structural diagram of the universal sliding mechanism connecting shaft of the inclined ejector rod of the injection mold for automotive interior parts according to this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the molding and connecting insert of the inclined ejector rod universal guide sliding mechanism of the injection mold for automotive interior parts according to this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the inclined push rod part of the universal guide sliding mechanism of the injection mold for automotive interior parts according to this utility model.

[0018] Figure 6 This is a three-dimensional structural diagram of the sliding opening groove of the inclined ejector rod universal guide sliding mechanism of the injection mold for automotive interior parts of this utility model.

[0019] In the diagram, 1. Upper injection mold; 2. Lower injection mold; 3. Lateral guide block; 4. Stroke cylinder; 5. Stroke sensor; 6. Guide groove; 7. Moving block; 8. Universal sliding connecting block; 9. Connecting shaft; 10. Sliding opening groove; 11. Guide groove; 12. Angled ejector guide plate; 13. Angled ejector part; 14. Molding connecting insert; 15. Slide groove contact part; 16. Movable slot; 17. Sliding plane. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution of the universal sliding mechanism for the inclined ejector rod of the injection mold for automotive interior parts of this utility model is as follows: First embodiment: It includes an injection mold body for automotive interior parts, having an upper injection mold 1 and a lower injection mold 2. Stroke cylinders 4 are provided at the center of both sides of the upper injection mold 1. It also includes two transverse guide blocks 3, arranged on both sides of the upper injection mold 1. The output end of the stroke cylinders 4 is movably connected to a universal sliding block 8 via a connecting shaft 9. The universal sliding block 8 is guided in the guide groove 11 of the transverse guide block 3. A guide groove 6 is formed in the center of each transverse guide block 3. A moving block 7 is provided in the center of the universal sliding block 8, and the moving block 7 slides inside the guide groove 6. Stroke sensors 5 are provided at both ends of each transverse guide block 3, with the contact portion of the stroke sensor 5 corresponding to the moving block 7. This solution has a good stroke limiting effect, enabling movement within a certain stroke range and avoiding damage caused by excessive stroke.

[0022] The second embodiment includes an automotive interior part injection mold body with an upper injection mold 1 and a lower injection mold 2. The upper injection mold 1 of the automotive interior part injection mold body has stroke cylinders 4 located at the center of both sides. It also includes two transverse guide blocks 3, which are arranged on both sides of the upper injection mold 1. The output end of the stroke cylinders 4 is movably connected to a universal sliding connecting block 8 via a connecting shaft 9. The universal sliding connecting block 8 is guided in the guide groove 11 of the transverse guide block 3. A guide groove 6 is formed in the center of each transverse guide block 3. A moving block 7 is provided in the center of the universal sliding connecting block 8, and the moving block 7 is located in the guide groove 6. The internal sliding mechanism includes a stroke sensor 5 at both ends of each transverse guide block 3, with the contact portion of the stroke sensor 5 corresponding to the moving block 7; it also includes an inclined ejector rod 13, with a molding connection insert 14 at the front end of the inclined ejector rod 13, which corresponds to the mold cavity of the lower injection mold 2 of the automotive interior part injection mold; one end of the inclined ejector rod 13 is provided with a sliding groove contact portion 15, and the inclined ejector rod 13 is disposed in the sliding opening groove 10 at the bottom of the universal sliding connecting block 8 through the sliding groove contact portion 15; the sliding opening groove 10 is inclined, and the thickness of the sliding opening groove 10 decreases along the direction close to the stroke cylinder 4.

[0023] Furthermore, based on the second embodiment, sliding planes 17 are provided on both sides of the bottom of the universal sliding connecting block 8, and movable slots 16 are provided between the sliding groove contact part 15 and the inclined top rod part 13, and the protrusion of the sliding plane 17 slides in the movable slots 16.

[0024] The third embodiment includes an automotive interior part injection mold body with an upper injection mold 1 and a lower injection mold 2. The upper injection mold 1 of the automotive interior part injection mold body has stroke cylinders 4 located at the center of both sides. It also includes two transverse guide blocks 3, which are arranged on both sides of the upper injection mold 1. The output end of the stroke cylinders 4 is movably connected to a universal sliding block 8 via a connecting shaft 9. The universal sliding block 8 is guided in the guide groove 11 of the transverse guide block 3. Each transverse guide block 3 has a guide groove 6 in its center. A moving block 7 is located in the center of the universal sliding block 8 and slides inside the guide groove 6. Each transverse guide block 3 has a... The system includes a stroke sensor 5 with its contact portion corresponding to the moving block 7; it also includes an inclined ejector rod 13, with a molding connection insert 14 at its front end, which corresponds to the mold cavity of the lower injection mold 2 of the automotive interior part injection mold; one end of the inclined ejector rod 13 has a sliding groove contact portion 15, and the inclined ejector rod 13 is positioned in the sliding opening groove 10 at the bottom of the universal sliding connecting block 8 through the sliding groove contact portion 15; the sliding opening groove 10 is inclined, and its thickness decreases along the direction closer to the stroke cylinder 4; an inclined ejector rod guide plate 12 is installed on the top of the inclined ejector rod 13, and the inclined ejector rod guide plate 12 is connected to the transverse guide block 3. This design has a good guiding effect, giving the inclined ejector rod good guidance during movement.

[0025] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A universal sliding mechanism for an injection mold of automotive interior parts, comprising an injection mold body for automotive interior parts having an upper injection mold (1) and a lower injection mold (2), wherein a stroke cylinder (4) is provided at the middle of both sides of the upper injection mold (1) of the automotive interior parts injection mold, characterized in that, It also includes two transverse guide blocks (3), which are arranged on both sides of the upper injection mold (1) of the automotive interior part injection mold. The output end of the stroke cylinder (4) is movably connected to the universal sliding connecting block (8) through the connecting shaft (9). The universal sliding connecting block (8) is guided in the guide groove (11) of the transverse guide block (3). A guide groove (6) is opened in the middle of each transverse guide block (3). A moving block (7) is set in the middle of the universal sliding connecting block (8) and the moving block (7) slides inside the guide groove (6). A stroke sensor (5) is set at both ends of each transverse guide block (3) and the contact part of the stroke sensor (5) corresponds to the moving block (7).

2. The slanted ejector rod universal guide mechanism for an automotive interior part injection mold according to claim 1, characterized in that, It also includes a slanted ejector rod (13), the front end of which is provided with a molding connection insert (14), which corresponds to the mold cavity of the lower injection mold (2) of the automotive interior part injection mold.

3. The slanted ejector rod universal guide mechanism of the automobile interior part injection mold according to claim 2, characterized in that, One end of the inclined top rod (13) is provided with a sliding groove contact part (15), and the inclined top rod (13) is provided in the sliding opening groove (10) at the bottom of the universal sliding connecting block (8) through the sliding groove contact part (15).

4. The slanted ejector rod universal guide mechanism of the automobile interior part injection mold according to claim 3, characterized in that, The universal sliding connecting block (8) has sliding planes (17) on both sides of its bottom. A movable slot (16) is provided between the sliding groove contact part (15) and the inclined top rod part (13). The protrusion of the sliding plane (17) slides in the movable slot (16).

5. The slanted ejector rod universal guide mechanism of the automotive interior part injection mold according to claim 4, characterized in that, The top of the inclined rod part (13) is equipped with an inclined rod guide plate (12), which is connected to the transverse guide block (3).

6. The slanted ejector rod universal guide mechanism for an automotive interior part injection mold according to claim 1, characterized in that, The sliding opening groove (10) of the universal sliding connecting block (8) is inclined, and the thickness of the sliding opening groove (10) decreases along the direction close to the stroke cylinder (4).

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