Slide block inclined ejection mechanism of injection mold

Abstract

The utility model relates to a slider pitched roof mechanism of an injection mold, which comprises a movable mold and a fixed mold, the movable mold is provided with a slider, a pitched roof and a stop block, the pitched roof is obliquely arranged in the slider, the stop block is fixed on the movable mold, and when the movable mold and the fixed mold are closed, the pitched roof is contacted with the stop block; when the mold is opened, the sliding block is driven by a power source to move for core pulling, the inclined ejector is driven by the sliding block to move for core pulling in different directions through the check block, and the inclined ejector is gradually separated from the check block; and after the pitched roof is separated from the stop block, the slide block drives the pitched roof to synchronously move. Compared with the prior art, the core-pulling mechanism has the advantages that core-pulling of inverted buckles in two different directions is realized, the structure is simple, and the core-pulling process is stable and reliable; the inclined ejector is prevented from synchronously moving backwards along with the sliding block through the check block, meanwhile, the spring is arranged, the spring is compressed during mold closing, the elastic force of the spring is released in the process that the mold opening sliding block moves backwards, the inclined ejector is further prevented from synchronously moving backwards along with the sliding block, the positioning pressure of the check block is reduced, and stability and reliability of the inclined ejector transverse core pulling process are guaranteed.

Description

Technical Field

[0001] The utility model relates to a slider tilting mechanism of an injection mold, belonging to the technical field of injection molds. Background Art

[0002] The slider mechanism is a common molding mechanism in injection mold design, and is mainly used to mold product undercut structures that are inconsistent with the main mold ejection direction of the mold. When there is a structure on the product that is different from both the slider ejection direction and the main mold ejection direction, the conventional slider structure cannot realize its molding and ejection. Utility Model Content

[0003] The utility model aims to provide a slider inclined ejection mechanism of an injection mold which can realize undercut core pulling in two different directions in view of the shortcomings of the prior art.

[0004] To achieve the purpose, the technical solution adopted by the utility model is:

[0005] The slider and lift mechanism of the injection mold comprises a movable mold and a fixed mold. The movable mold is provided with a slider, a lift and a stopper. The lift is tilted in the slider, and the stopper is fixed on the movable mold. When the movable and fixed molds are in a clamped state, the lift and the stopper are in contact. When the mold is opened, the slider is driven by a power source to move the core, and the stopper enables the lift to be driven by the slider to move the core in different directions, and the lift gradually separates from the stopper. After the lift separates from the stopper, the slider drives the lift to move synchronously.

[0006] As a further optimization of the above technical solution: a limit rod is also provided on the movable mold, a mounting hole is formed on the slider, the limit rod is installed in the mounting hole, a limit groove is formed on the top of the inclined top, and the bottom of the limit rod enters into the limit groove and can move in the limit groove.

[0007] As a further optimization of the above technical solution: when the movable and fixed molds are in the mold closing state, the limit rod is in contact with the groove wall of the limit groove close to the stop block; after the mold is opened, when the slider drives the limit rod to move to the groove wall of the limit groove away from the stop block, the inclined top has completely separated from the stop block, and the slider drives the inclined top to move synchronously through the limit rod.

[0008] As a further optimization of the above technical solution: a spring guide rod and a spring are also provided on the movable mold, a spring groove is formed in the slider, the spring guide rod is inserted into the spring groove, the end of the spring guide rod is fixed on the inclined top, the spring is sleeved on the spring guide rod, the two ends of the spring are respectively in contact with the inclined top and the groove wall of the spring groove, and the spring is compressed when the movable and fixed molds are in a mold closing state.

[0009] As a further optimization of the above technical solution: an inclined guide column is provided on the fixed mold, and an inclined guide column hole is formed on the sliding block. One end of the inclined guide column is connected to the fixed mold, and the other end is passed through the inclined guide column hole. When the mold is opened, the fixed mold drives the inclined guide column to move upward. The inclined guide column serves as a power source, and the sliding block is driven by the inclined guide column to start moving the core.

[0010] As a further optimization of the above technical solution: a positioning groove is formed on the inclined top, and when the movable and fixed molds are in a mold-closing state, the stopper enters the positioning groove, and the groove wall of the positioning groove contacts the stopper.

[0011] As a further optimization of the above technical solution: a penetration notch is also formed on the inclined top.

[0012] Compared with the prior art, the utility model realizes undercut core pulling in two different directions, has a simple structure, and the core pulling process is stable and reliable; a stopper is used to prevent the inclined top from moving backward synchronously with the slider, and a spring is provided at the same time. The spring is compressed during mold closing, and the spring elastic force is released during the backward movement of the mold opening slider, which further prevents the inclined top from moving backward synchronously with the slider, reduces the positioning pressure of the stopper, and ensures the stability and reliability of the lateral core pulling process of the inclined top; the limit rod and the limit groove not only position the movement of the slider during the mold closing process, but also position the lateral core pulling process of the inclined top. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of part of the structure of the utility model. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. Figure 1-3 As shown, the slider tilting mechanism of the injection mold includes a movable mold and a fixed mold. The movable mold is provided with a slider 1, a tilting lift 2, a limit rod 3, a stopper 4, a spring guide rod 5 and a spring 6, and the fixed mold is provided with an inclined guide column. The slider 1 is provided with an inclined guide column hole 11, one end of the inclined guide column is connected to the fixed mold, and the other end is inserted into the inclined guide column hole 11. When the mold is opened, the fixed mold drives the inclined guide column to move upward, and the inclined guide column acts as a power source to drive the slider 1 to move backward to pull the core. The power source for the slider 1 to pull the core can also be a cylinder, etc.

[0017] In the above technical solution: the inclined top 2 is tiltedly arranged in the slider 1, the top of the inclined top 2 is formed with a limit groove 21, the slider 1 is formed with a mounting hole 13, the limit rod 3 is installed in the mounting hole 13, the bottom of the limit rod 3 enters the limit groove 21 and can move in the limit groove 21. The inclined top 2 is formed with a positioning groove 22, and the stopper 4 is fixed on the movable mold.

[0018] In the above technical solution, a spring groove 12 is formed in the slider 1, a spring guide rod 5 is inserted into the spring groove 12, and two ends of the spring guide rod 5 are respectively fixed on the inclined top 2 and the movable mold. The spring 6 is sleeved on the spring guide rod 5, and the two ends of the spring 6 are respectively in contact with the inclined top 2 and the groove wall of the spring groove 12.

[0019] When the movable and fixed molds are in the mold closing state, the limiting rod 3 contacts the groove wall of the limiting groove 21 near the end of the stopper 4, the spring 6 is compressed, the stopper 4 enters the positioning groove 22, and the groove wall of the positioning groove 22 contacts the stopper 4. Figure 3 shown.

[0020] When the mold is opened, the fixed mold drives the inclined guide column to move upward, and the slider 1 is driven by the inclined guide column to start moving backward to pull the core, and the limit rod 3 moves backward synchronously with the slider 1; the elastic force of the spring 6 is released, and the elastic force of the spring 6 and the interference between the groove wall of the positioning groove 22 and the stopper 4 prevent the inclined top 2 from moving backward synchronously with the slider 1. In the above process, since the inclined top 2 is obliquely arranged in the slider 1, the inclined top 2 is driven by the slider 1 to perform a lateral core pulling movement, and the groove wall of the positioning groove 22 gradually separates from the stopper 4. When the slider 1 drives the limit rod 3 to move to the groove wall of the limiting groove 21 away from the stopper 4, the groove wall of the positioning groove 22 has completely separated from the stopper 4. At this time, the slider 1 drives the inclined top 2 to move backward synchronously through the limit rod 3 and separate from the product.

[0021] In the above technical solution: the inclined top 2 is also provided with a penetration notch 23, which prevents the inclined top 2 from hitting the mold when it is reset.

[0022] The utility model realizes undercut core pulling in two different directions, has a simple structure, and the core pulling process is stable and reliable; the stopper 4 is used to prevent the inclined top 2 from moving backward synchronously with the slider 1, and a spring 6 is provided at the same time. The spring 6 is compressed during mold closing, and the elastic force of the spring 6 is released during the backward movement of the mold opening slider 1, which further prevents the inclined top 2 from moving backward synchronously with the slider 1, reduces the positioning pressure of the stopper 4, and ensures the stability and reliability of the transverse core pulling process of the inclined top 2; the limiting rod 3 and the limiting groove 21 not only position the movement of the slider 1 during the mold closing process, but also position the transverse core pulling process of the inclined top 2.

[0023] The preferred specific embodiments of the present utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should fall within the protection scope of the present utility model.

Claims

1. The slider tilting mechanism of the injection mold includes a movable mold and a fixed mold, which is characterized by The movable mold is provided with a slider (1), a slanted top (2) and a stopper (4); the slanted top (2) is tiltedly arranged in the slider (1), and the stopper (4) is fixed on the movable mold; when the movable and fixed molds are in a mold-clamping state, the slanted top (2) and the stopper (4) are in contact; when the mold is opened, the slider (1) is driven by a power source to move the core, and the stopper (4) enables the slanted top (2) to be driven by the slider (1) to move the core in different directions, and the slanted top (2) gradually separates from the stopper (4); after the slanted top (2) separates from the stopper (4), the slider (1) drives the slanted top (2) to move synchronously.

2. The slider tilting mechanism of the injection mold according to claim 1, characterized in that The movable mold is also provided with a limiting rod (3), the slider (1) is provided with a mounting hole (13), the limiting rod (3) is installed in the mounting hole (13), the top of the inclined top (2) is provided with a limiting groove (21), the bottom of the limiting rod (3) enters the limiting groove (21) and can move in the limiting groove (21); When the movable and fixed molds are in a mold-clamping state, the limit rod (3) contacts the groove wall of the limit groove (21) close to the stop block (4); after the mold is opened, when the slider (1) drives the limit rod (3) to move to the groove wall of the limit groove (21) away from the stop block (4), the inclined top (2) has completely separated from the stop block (4), and the slider (1) drives the inclined top (2) to move synchronously through the limit rod (3).

3. The slider tilting mechanism of the injection mold according to claim 1, characterized in that The movable mold is also provided with a spring guide rod (5) and a spring (6). A spring groove (12) is formed in the slider (1). The spring guide rod (5) is inserted into the spring groove (12). The end of the spring guide rod (5) is fixed on the inclined top (2). The spring (6) is sleeved on the spring guide rod (5). The two ends of the spring (6) are respectively in contact with the inclined top (2) and the groove wall of the spring groove (12). When the movable and fixed molds are in a mold-closing state, the spring (6) is compressed.

4. The slider tilting mechanism of the injection mold according to claim 1, characterized in that The fixed mold is provided with an inclined guide column, and the slider (1) is provided with an inclined guide column hole (11) arranged obliquely. One end of the inclined guide column is connected to the fixed mold, and the other end is inserted into the inclined guide column hole (11). When the mold is opened, the fixed mold drives the inclined guide column to move upward, and the inclined guide column serves as a power source. The slider (1) is driven by the inclined guide column to start moving the core.

5. The slider tilting mechanism of the injection mold according to claim 1, characterized in that The inclined top (2) is provided with a positioning groove (22). When the movable and fixed molds are in a mold-closing state, the stopper (4) enters the positioning groove (22), and the groove wall of the positioning groove (22) contacts the stopper (4).

6. The slider tilting mechanism of the injection mold according to claim 1, characterized in that The inclined top (2) is also provided with a penetration notch (23).

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