Sliding block mechanism with vibrating needle mechanism for injection mold
By designing a slider mechanism with a needle mechanism in the injection mold, using the cooperation of the inclined guide groove and the inclined guide column, the core pulling action in both directions is achieved in one mold opening action, and the existing mold is solved The problems of high costs and large size achieve more efficient production and lower costs.
Patent Information
- Application Number
- CN202420998554.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-10
AI Technical Summary
When existing injection molds deal with plastic products with inverted structures, it is difficult for conventional mechanisms to achieve core extraction in two different directions, resulting in high cost and large size of the mold.
Design a slider mechanism for injection mold with a needle mechanism. By setting an inclined guide groove and an inclined guide column on the slide, combining the coordination of the needle and the spring, the two directions can be completed in one mold opening operation. core pulling action.
This design realizes core pulling action in two directions in one mold opening action, reducing the design and production cost of the mold, reducing the volume of the mold, and has a simple process and low manufacturing cost.
Smart Images
Figure CN222521957U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection molding, in particular to a slider mechanism for an injection mold with a spring needle mechanism. Background Art
[0002] When using injection molds to produce plastic products, some plastic products have undercut structures, and there is a large angle between the demoulding direction of the undercut structure and the demoulding direction of the product itself. If conventional mechanisms or methods are used, demoulding cannot be achieved.
[0003] In order to solve the above problems, two sets of core pulling mechanisms are traditionally provided in the mold, and the core pulling directions of the two sets of mechanisms are at angles to each other. This will, on the one hand, lead to a significant increase in the cost of the mold, and on the other hand, it will also take up a large space, resulting in a relatively large volume of the mold itself.
[0004] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention
[0005] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a slider mechanism for an injection mold with a needle spring mechanism, which has a simple structure, ingenious design, and reasonable layout and can realize core pulling actions in two different directions in one mold opening action.
[0006] The technical solution of the utility model is: a slider mechanism for an injection mold with a spring needle mechanism, comprising a slider 1, characterized in that: an oblique guide groove 2 is provided on the slider 1, and an oblique guide column 3 is provided to match the oblique guide groove 2, the cross-sections of the oblique guide groove 2 and the oblique guide column 3 are both rectangular, the width of the oblique guide groove 2 is H1, the width of the oblique guide column 3 is H2, H1>H2, a first driving inclined surface is provided at the tail end of the slider 1, and a second driving inclined surface matching the first driving inclined surface is provided on a slider driving block 4 matched with the slider 1,
[0007] The front end of the slider 1 is provided with an insert 5, and an elastic pin 6 is movably connected inside the insert 5. The movement direction of the elastic pin 6 is perpendicular to the movement direction of the slider 1. A limit ring 7 is provided on the elastic pin 6. A spring 8 is connected to the outer sleeve of the elastic pin 6. The spring 8 is located between the limit ring 7 and the inner wall of the insert 5. The length of the elastic pin 6 is greater than the length of the insert 5. One end of the elastic pin 6 is a forming end 9, and the other end is a ball head driving end 10. An elastic pin driving block 11 is provided to match the insert 5. A third driving inclined surface 12 is provided on the elastic pin driving block 11. The side surfaces of the third driving inclined surface 12 and the elastic pin driving block 11 are matched with the position of the ball head driving end 10. At the same time, a limit block 13 is fixedly connected to the slider 1 by bolts. The movement trajectory of the limit block 13 and the limit ring 7 interfere with each other.
[0008] The slider 1 is arranged on the movable mold side, and the inclined guide pillar 3, the slider driving block 4 and the elastic needle driving block 11 are all fixedly connected to the fixed mold side.
[0009] Compared with the prior art, the utility model has the following advantages:
[0010] The slider mechanism for injection mold with probe mechanism of this structural form has simple structure, ingenious design and reasonable layout. It designs a special structure to solve various problems caused by the need to design two different core pulling mechanisms when traditional molds need to pull cores in two directions. It sets an insert at the end of the slider, and sets a movable spring pin inside the insert. At the same time, the spring pin is also equipped with a spring pin driving block. When the mold is closed, after the insert is in place, the spring pin will pop out and occupy the position under the action of the spring pin driving block, and form the shape of the workpiece together with the insert. When the mold is opened, the spring pin will rebound first and be pulled out from the groove formed on the workpiece to realize a core pulling action. The slider will retreat under the action of the inclined guide column, drive the insert to be pulled out from the cavity, and realize a secondary core pulling action. That is to say, this slider mechanism can realize the core pulling action in two directions in one mold opening action, and there is no need to set up two independent core pulling mechanisms separately, which can greatly reduce the design cost and production cost of the mold, and can also effectively control the overall volume of the mold. In addition, the manufacturing process of this slider mechanism is simple and the manufacturing cost is low. Therefore, it can be said that it has multiple advantages and is particularly suitable for promotion and application in this field. Its market prospect is very broad. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of a workpiece to be processed in an embodiment of the utility model.
[0012] Figure 2 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.
[0013] Figure 3 It is a top view of an embodiment of the utility model.
[0014] Figure 4 It is the front view of the embodiment of the utility model. DETAILED DESCRIPTION
[0015] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figures 1 to 4As shown: a slider mechanism for an injection mold with an elastic needle mechanism, comprising a slider 1, an inclined guide groove 2 is provided on the slider 1, an inclined guide column 3 is provided to match the inclined guide groove 2, the cross-sections of the inclined guide groove 2 and the inclined guide column 3 are both rectangular, the width of the inclined guide groove 2 is H1, the width of the inclined guide column 3 is H2, H1>H2, a first driving inclined surface is provided at the tail end of the slider 1, and a second driving inclined surface matching the first driving inclined surface is provided on a slider driving block 4 matched with the slider 1,
[0016] The front end of the slider 1 is provided with an insert 5, and an elastic pin 6 is movably connected inside the insert 5. The movement direction of the elastic pin 6 is perpendicular to the movement direction of the slider 1. A limit ring 7 is provided on the elastic pin 6. A spring 8 is connected to the outer sleeve of the elastic pin 6. The spring 8 is located between the limit ring 7 and the inner wall of the insert 5. The length of the elastic pin 6 is greater than the length of the insert 5. One end of the elastic pin 6 is a forming end 9, and the other end is a ball head driving end 10. An elastic pin driving block 11 is provided to match the insert 5. A third driving inclined surface 12 is provided on the elastic pin driving block 11. The side surfaces of the third driving inclined surface 12 and the elastic pin driving block 11 are matched with the position of the ball head driving end 10. At the same time, a limit block 13 is fixedly connected to the slider 1 by bolts. The movement trajectory of the limit block 13 and the limit ring 7 interfere with each other.
[0017] The slider 1 is arranged on the movable mold side, and the inclined guide pillar 3, the slider driving block 4 and the elastic needle driving block 11 are all fixedly connected to the fixed mold side.
[0018] The working process of the slider mechanism for the injection mold with the spring needle mechanism of the embodiment of the utility model is as follows: Figure 1 During the injection molding production of the workpiece 14 shown, the workpiece 14 is provided with a groove 15, and the demoulding direction of the groove 15 is perpendicular to the demoulding direction of the workpiece 14 itself.
[0019] In the mold closing state, the insert 5 enters the cavity to occupy a position. At this time, the side of the spring needle driving block 11 contacts the ball head driving end 10. Since the length of the spring needle 6 is greater than the length of the insert 5, the molding end 9 on the spring needle 6 in this state protrudes from the insert 5 and forms a position in the cavity (the molding end 9 corresponds to the groove 15 on the workpiece 14); then the molding machine injects the molten material into the cavity, and the material is cooled to form the workpiece 14.
[0020] In the initial stage of mold opening, the inclined guide pin 3 moves relative to the slider 1. However, since the width H1 of the inclined guide groove 2 is greater than the width H2 of the inclined guide pin 3, the movement of the inclined guide pin 3 does not drive the slider 1 to move in the initial stage. However, the spring needle driving block 11 will move away from the movable mold part where the slider 1 is located. When the side of the spring needle driving block 11 is no longer in contact with the ball head driving end 10, under the action of the spring 8, the spring needle 6 moves toward the ball head driving end 10, and the molding end 9 is recovered and withdrawn from the groove 15, realizing a core pulling.
[0021] As the mold opening action proceeds, the side surface of the inclined guide column 3 contacts the inner wall of the inclined guide groove 2, and starts to drive the slider 1 backward, and the slider 1 drives the insert 5 at its end to move together, realizing the secondary core pulling action; that is, this mechanism completes the core pulling action of the workpiece 14 in two different directions in one mold opening action;
[0022] When the mold is closed, the inclined guide column 3 directly drives the slider 1 to move toward the direction of the cavity. Since the lower part of the spring needle driving block 11 is the third driving inclined surface 12, the spring needle 6 will not be directly driven to move in the insert 5 at the initial stage of movement. When the insert 5 moves into place, the spring needle 6 will be ejected under the action of the third driving inclined surface 12 and the molding end 9 at its end will occupy the position in the cavity. After the mold is completely closed, the slider driving block 4 locks the slider 1, and the next injection molding operation can be carried out.
Claims
1. A slider mechanism for an injection mold with a needle ejection mechanism, comprising a slider (1), characterized in that: The slider (1) is provided with an inclined guide groove (2), and an inclined guide column (3) is provided to match the inclined guide groove (2). The cross-sections of the inclined guide groove (2) and the inclined guide column (3) are both rectangular. The width of the inclined guide groove (2) is H1, and the width of the inclined guide column (3) is H2, where H1>H2. A first driving inclined surface is provided at the rear end of the slider (1), and a slider driving block (4) matched with the slider (1) is provided with a second driving inclined surface matching the first driving inclined surface. The front end of the slider (1) is provided with an insert (5), and a spring pin (6) is movably connected inside the insert (5). The movement direction of the spring pin (6) is perpendicular to the movement direction of the slider (1). A limit ring (7) is provided on the spring pin (6), and a spring (8) is connected to the outer sleeve of the spring pin (6). The spring (8) is located between the limit ring (7) and the inner wall of the insert (5). The length of the spring pin (6) is greater than the length of the insert (5). One end of the spring pin (6) is a forming end (9), and the other end is a ball head driving end (10). A spring pin driving block (11) is provided to match the insert (5). A third driving inclined surface (12) is provided on the spring pin driving block (11). The side surfaces of the third driving inclined surface (12) and the spring pin driving block (11) are matched with the position of the ball head driving end (10). At the same time, a limit block (13) is fixedly connected to the slider (1) by bolts. The movement trajectories of the limit block (13) and the limit ring (7) interfere with each other. The slider (1) is arranged on the movable mold side, and the inclined guide column (3), the slider driving block (4) and the elastic needle driving block (11) are all fixedly connected to the fixed mold side.