A slanted slider demolding mechanism

Abstract

The utility model relates to injection mold technical field, concretely disclose a slanted sliding block demolding mechanism, and the inside installation of mould plate has the mould core, and the inside of mould core is connected with the insert through the sliding connection of guide portion, the second mould plate is connected with the insert through the installation unit, the insert is installed on the second mould plate through the rolling connection part, and the power part is arranged between the first mould plate and the second mould plate to make the first mould plate separate from the second mould plate. The first mould plate is driven to separate from the second mould plate through the power part, namely the insert will separate from the workpiece at this moment, in this process, the insert is installed on the second mould plate through the rolling connection part, namely in the stroke of the insert sliding out from the workpiece, the friction of the insert can be greatly reduced, and then the wear of the insert can be reduced, the service life of the insert is improved, and the noise can be effectively reduced, and the use effect is better.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a slanted slider demolding mechanism. Background Technology

[0002] After injection molding a plastic part, if the side wall of the plastic part has a raised ring, a groove, and a through hole, the existing technology usually uses a side core-pulling mold to pull out the raised ring, groove, and through hole at the same time. However, because the plastic part has a large clamping force on the side core-pulling mold after injection molding, pulling them out at the same time can easily cause the plastic part to deform or even break. Since some parts of plastic products cannot be demolded, a core-pulling mold is required for demolding.

[0003] In existing technologies, when using a hydraulic cylinder to pull the core of a mold core, there is often only one oblique sliding groove. Such a mold core does not have sufficient locking force. When plastic products are being molded, the mold core generates a downward force under the injection pressure. This force directly acts on the oblique sliding groove of the guide rail, causing the guide rail to generate a leftward thrust. If the thrust of the hydraulic cylinder is insufficient, the guide rail will slide to the left, causing the mold core to slide downward, resulting in flash during product molding. Previous designs generally increased the cylinder diameter to achieve this, which increased the mold cost.

[0004] To address the aforementioned technical problems, a Chinese patent, with authorization announcement number CN209794448U and titled "A Demolding Mechanism for Plastic Injection Molds," was proposed. This patent discloses a demolding mechanism for plastic injection molds, relating to the field of injection mold technology. This utility model's demolding mechanism for plastic injection molds includes a mold frame I for accommodating plastic products and a mold frame II mounted on a base. It also includes a mold core and guide posts and a directional plate mounted on the base. The mold core is sleeved on the guide posts, and the directional plate has a sliding groove. The bottom of the mold core is provided with a sliding strip that slidably connects with the sliding groove. The mold frame I is connected to the mold core.

[0005] The demolding mechanism for plastic injection molds described in the aforementioned patent has a reasonable structural design, simple structure, and easy operation, effectively ensuring product molding quality and improving production efficiency. Existing technologies, including the aforementioned patent, can meet the demolding needs of workpieces to a certain extent. However, in existing technologies, the mold core needs to be driven to slide before demolding. The relative sliding of the mold cores generates significant friction, which not only affects the service life of the entire mold core but also produces considerable noise, thus presenting certain shortcomings. Utility Model Content

[0006] The purpose of this invention is to provide a slanted slider demolding mechanism to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a slanted slider demolding mechanism, comprising a mold body, a first mold plate and a second mold plate disposed on the mold body, a mold core installed inside the first mold plate, and an insert slidably connected inside the mold core via a guide portion; the second mold plate is connected to the insert via an installation unit, the insert is mounted on the second mold plate via a rolling connection portion, and a power unit is disposed between the first mold plate and the second mold plate to separate the first mold plate and the second mold plate.

[0008] Furthermore, the mounting unit includes a positioning block, which is mounted on the second mold plate by fastening bolts.

[0009] Furthermore, the guide portion includes an inclined groove formed on the mold core, and the insert is mounted on the mold core through the inclined groove.

[0010] Furthermore, the rolling connection includes a limiting protrusion fixedly connected to the positioning block, and the insert has a trapezoidal groove, with the limiting protrusion slidably connected to the trapezoidal groove.

[0011] Furthermore, an abutment bearing is rotatably connected to the limiting protrusion, and the abutment bearing rolls within the trapezoidal groove.

[0012] Furthermore, the power unit is a resin opener / closer.

[0013] Furthermore, multiple sets of limiting parts are provided between the first mold plate and the second mold plate.

[0014] Furthermore, the limiting part includes a limiting post mounted on the second mold plate, and a limiting groove adapted to the limiting post is provided on the first mold plate, with the limiting post and the limiting groove being slidably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When the workpiece needs to be demolded after injection molding, the mold body first opens to separate the fixed mold from the moving mold. When the demolding operation is to be performed after the mold opening stroke is completed, the insert needs to be separated from the workpiece first. At this time, the first mold plate and the second mold plate are separated by the power unit, that is, the insert will be separated from the workpiece. During this process, the insert is mounted on the second mold plate through the rolling connection part. That is, during the stroke of the insert sliding off the workpiece, the friction of the insert can be greatly reduced, thereby reducing the wear of the insert, improving the service life of the insert, and also effectively reducing noise, resulting in better performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the mold core installation position structure provided in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the hidden state structure of the mold core provided in an embodiment of the present utility model;

[0020] Figure 4 for Figure 3 Mid-top view diagram;

[0021] Figure 5 for Figure 4 Schematic diagram of the structure in sectional view along the AA section;

[0022] Figure 6 A schematic diagram of the exploded state structure of the rolling connection provided in an embodiment of this utility model;

[0023] Figure 7 A schematic diagram of the workpiece structure provided for an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Mold body; 2. First mold plate; 3. Second mold plate; 4. Insert; 5. Limiting part; 6. Workpiece; 7. Mold core; 8. Positioning block; 9. Rolling connection part; 91. Trapezoidal groove; 92. Limiting protrusion; 93. Abutting bearing. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7This utility model provides a technical solution: a slanted slider demolding mechanism, including a mold body 1, a first mold plate 2 and a second mold plate 3 disposed on the mold body 1, a mold core 7 installed inside the first mold plate 2, and an insert 4 slidably connected inside the mold core 7 through a guide part; the second mold plate 3 is connected to the insert 4 through an installation unit, and the insert 4 is installed on the second mold plate 3 through a rolling connection part 9, and a power unit is disposed between the first mold plate 2 and the second mold plate 3 to separate the first mold plate 2 and the second mold plate 3.

[0027] Specifically, the inclined slider demolding mechanism includes a mold body 1, which is existing technology and includes a fixed mold and a moving mold, which will not be described in detail here. The mold body 1 is provided with a first mold plate 2 and a second mold plate 3. A mold core 7 is installed inside the first mold plate 2, and an insert 4 is slidably connected to the mold core 7 via a guide portion. When the workpiece 6 needs to be demolded, the mold core 7 drives the insert 4 to slide together, so that the insert 4 separates from the workpiece 6, thus facilitating the subsequent demolding operation of the workpiece 6. The second mold plate 3 is connected to the insert 4 via an mounting unit. The insert 4 is mounted on the second mold plate 3 via a rolling connection portion 9, thereby reducing friction and noise. A power unit is provided between the first mold plate 2 and the second mold plate 3 to allow the first mold plate 2 and the second mold plate 3 to separate. Therefore, when demolding is required after injection molding of workpiece 6, the mold body 1 first opens to separate the fixed mold from the moving mold. When demolding is required after the mold opening stroke, the insert 4 needs to be separated from workpiece 6. At this time, the first mold plate 2 and the second mold plate 3 are separated by the power unit. That is, the insert 4 will separate from workpiece 6. During this process, the insert 4 is mounted on the second mold plate 3 through the rolling connection part 9. That is, during the stroke of the insert 4 sliding off workpiece 6, the friction of the insert 4 can be greatly reduced, thereby reducing the wear of the insert 4, improving the service life of the insert 4, and also effectively reducing noise, resulting in better performance.

[0028] In the embodiments provided by this utility model, the installation unit includes a positioning block 8, which is installed on the second mold plate 3 by fastening bolts, thereby improving the stability of the positioning block 8 during installation.

[0029] In the embodiments provided by this utility model, the guide portion includes an inclined groove formed on the mold core 7, and the insert 4 is installed on the mold core 7 through the inclined groove, thereby facilitating the separation of the insert 4 from the workpiece 6.

[0030] In the embodiments provided by this utility model, the rolling connection part 9 includes a limiting protrusion 92 fixedly connected to the positioning block 8, and a trapezoidal groove 91 is provided on the insert 4. The limiting protrusion 92 is slidably connected to the trapezoidal groove 91. An abutment bearing 93 is rotatably connected to the limiting protrusion 92. The abutment bearing 93 rolls in the trapezoidal groove 91. That is, when the positioning block 8 drives the insert 4 to slide, the limiting protrusion 92 will slide in the trapezoidal groove 91. At this time, the abutment bearing 93 rolls in the trapezoidal groove 91, which can greatly reduce the wear of the insert 4 and the positioning block 8, and at the same time effectively reduce energy consumption.

[0031] In the embodiments provided by this utility model, the power unit is a resin opener / closer, and there are multiple resin openers / closers, which facilitates the separation of the first mold plate 2 and the second mold plate 3 to meet the working requirements.

[0032] In the embodiments provided by this utility model, a plurality of limiting parts 5 are further provided between the first mold plate 2 and the second mold plate 3. The limiting part 5 includes a limiting post installed on the second mold plate 3. A limiting groove adapted to the limiting post is opened on the first mold plate 2. The limiting post and the limiting groove are slidably connected, which can further improve the stability of the first mold plate 2 and the second mold plate 3 when they move.

[0033] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slanted slider demolding mechanism, comprising a mold body (1), wherein a first mold plate (2) and a second mold plate (3) are disposed on the mold body (1), characterized in that: The first mold plate (2) has a mold core (7) installed inside, and an insert (4) is slidably connected to the inside of the mold core (7) through a guide part. The second mold plate (3) is connected to the insert (4) through the mounting unit, and the insert (4) is mounted on the second mold plate (3) through the rolling connection part (9); A power unit is provided between the first mold plate (2) and the second mold plate (3) to separate the first mold plate (2) and the second mold plate (3).

2. The inclined slider demolding mechanism according to claim 1, characterized in that: The installation unit includes a positioning block (8), which is mounted on the second mold plate (3) by fastening bolts.

3. The inclined slider demolding mechanism according to claim 2, characterized in that: The guide portion includes an inclined groove formed on the mold core (7), and the insert (4) is mounted on the mold core (7) through the inclined groove.

4. The inclined slider demolding mechanism according to claim 2, characterized in that: The rolling connection part (9) includes a limiting protrusion (92) fixedly connected to the positioning block (8), and a trapezoidal groove is provided on the insert (4). The limiting protrusion (92) is slidably connected to the trapezoidal groove (91).

5. The inclined slider demolding mechanism according to claim 4, characterized in that: The limiting protrusion (92) is rotatably connected to an abutment bearing (93), which rolls within a trapezoidal groove (91).

6. The inclined slider demolding mechanism according to claim 1, characterized in that: The power unit is a resin switch.

7. The inclined slider demolding mechanism according to claim 1, characterized in that: Multiple sets of limiting parts (5) are also provided between the first mold plate (2) and the second mold plate (3).

8. The inclined slider demolding mechanism according to claim 7, characterized in that: The limiting part (5) includes a limiting post installed on the second mold plate (3), and a limiting groove adapted to the limiting post is provided on the first mold plate (2), and the limiting post and the limiting groove are slidably connected.

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