Front mold core-pulling mechanism

Abstract

The utility model relates to the technical field of mold equipment, in particular to a front mold core-pulling mechanism which comprises a front mold plate and a hot runner plate, the hot runner plate is arranged on the upper side of the front mold plate, a side pulling core is movably arranged in the front mold plate, an oil cylinder is installed on one side of the front mold plate, and the output end of the oil cylinder extends into the front mold plate to be connected with a steering guide rail. One end of the steering guide rail is slidably connected with a secondary steering guide rail, and the lower side of the secondary steering guide rail is slidably connected with the side loose core. Through the arrangement of the steering guide rail and the secondary steering guide rail, core pulling of the front mold plate is achieved under the action of the two steering guide rails, the pressing mold collision risk is reduced, and therefore the production and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold equipment, in particular to a front mold core pulling mechanism. Background Art

[0002] In the production process of injection molds, core pulling is required. Existing molds all achieve core pulling by separating the front mold fixing plate and the front mold plate. However, opening the front mold fixing plate of some molds will cause some problems. For example, the material head falls into the open gap, resulting in a high risk of damage to the die, gate sleeve or hot runner.

[0003] Publication number CN103991180A discloses a front mold side core pulling mechanism of an injection mold system, which is connected to an I-block through a plug rod of a cylinder, and a T-slot is provided on the inclined surface of the I-block. The I-block is slidably connected to a side core pulling device through the T-slot, and the I-block is driven by the cylinder to move vertically in the core pulling direction. The I-block moves downward and drives the side core pulling device to move horizontally along the core pulling direction through the T-slot on the inclined surface, thereby realizing lateral core pulling of the product in the product cavity.

[0004] However, this structure can only complete core pulling in one direction, cannot adjust the core pulling direction according to demand, and cannot meet various production needs. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a front mold core pulling mechanism to solve the problem that the existing core pulling mechanism can only perform core pulling in one direction and cannot meet various production requirements.

[0006] Based on the above purpose, the utility model provides a front mold core pulling mechanism, including a front mold plate and a hot runner plate, the hot runner plate is on the upper side of the front mold plate, a side core pulling is movably arranged in the front mold plate, an oil cylinder is installed on one side of the front mold plate, the output end of the oil cylinder extends into the front mold plate and is connected to a steering guide rail, one end of the steering guide rail is slidably connected to a secondary steering guide rail, and the lower side of the secondary steering guide rail is slidably connected to the side core pulling.

[0007] A further improvement is that the opposing surfaces of the turning guide rail and the secondary turning guide rail are both inclined surfaces, the two inclined surfaces are adapted to each other, the inclined surface of the turning guide rail is provided with a first T-shaped groove, and the inclined surface of the secondary turning guide rail is connected with a first T-shaped block.

[0008] A further improvement is that the first T-slot and the first T-block are matched, and the first T-block is slidably arranged in the first T-slot.

[0009] A further improvement is that the opposite surfaces of the secondary turning guide rail and the side core pulling are in a zigzag structure, and the two opposite surfaces are matched.

[0010] A further improvement lies in that: a second T-shaped block is provided on the inclined surface of the secondary steering guide rail opposite to the side core-pulling, and a second T-shaped groove is formed on the inclined surface of the opposite side of the side core-pulling.

[0011] A further improvement lies in that: the second T-shaped groove and the second T-shaped block are adapted to each other, and the second T-shaped block is slidably arranged in the second T-shaped groove.

[0012] The beneficial effects of the present utility model: By providing a steering guide rail and a secondary steering guide rail, the steering guide rail is driven to retreat by an oil cylinder, the steering guide rail drives the secondary steering guide rail to move up and down, and the side core-pulling moves up and down together with the secondary steering guide rail, so that upward core-pulling of the mold can be realized; the side core-pulling is pushed to retreat by the secondary steering guide rail to realize side core-pulling of the front template, so that the core-pulling direction can be selected according to actual needs, improving the convenience of production; by adopting the side core-pulling method, part of the risk of die pressing and bruising is reduced, thereby reducing the production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the steering guide rail in the embodiment of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the secondary steering guide rail in the embodiment of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the side core-pulling in the embodiment of the present utility model.

[0018] The markings in the figure are:

[0019] 1. Front template; 2. Hot runner plate; 3. Side core-pulling; 4. Oil cylinder; 5. Steering guide rail; 6. Secondary steering guide rail; 7. First T-shaped groove; 8. First T-shaped block; 9. Second T-shaped block; 10. Second T-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in combination with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1-4 As shown, a front mold core pulling mechanism comprises a front mold plate 1 and a hot runner plate 2, the hot runner plate 2 is on the upper side of the front mold plate 1, a side core pulling 3 is movably arranged in the front mold plate 1, a cylinder 4 is installed on one side of the front mold plate 1, the output end of the cylinder 4 extends into the front mold plate 1 and is connected with a turning guide rail 5, one end of the turning guide rail 5 is slidably connected with a secondary turning guide rail 6, the lower side of the secondary turning guide rail 6 is slidably connected with the side core pulling 3, the turning guide rail 5 is driven to move by the cylinder 4, thereby driving the secondary turning guide rail 6 and the side core pulling 3 to move, and the multi-directional core pulling of the front mold plate 1 is realized by the turning guide rail 5 and the secondary turning guide 6.

[0023] The opposing surfaces of the turning guide rail 5 and the secondary turning guide rail 6 are both inclined surfaces, and the two inclined surfaces are adapted to each other. The inclined surface of the turning guide rail 5 is provided with a first T-shaped slot 7, and the inclined surface of the secondary turning guide rail 6 is connected with a first T-shaped block 8; the first T-shaped slot 7 and the first T-shaped block 8 are adapted to each other, and the first T-shaped block 8 is slidably arranged in the first T-shaped slot 7; the turning guide rail 5 and the secondary turning guide rail 6 slide relatively along the inclined surfaces through the first T-shaped slot 7 and the first T-shaped block 8.

[0024] The secondary turning guide rail 6 and the opposite surface of the side core pull 3 have a "﹁" structure, and the two opposite surfaces are adapted to each other; a second T-block 9 is provided on the inclined surface of the secondary turning guide rail 6 and the opposite surface of the side core pull 3, and a second T-slot 10 is provided on the inclined surface of the opposite surface of the side core pull 3; the second T-slot 10 is adapted to the second T-block 9, and the second T-block 9 is slidably arranged in the second T-slot 10; the secondary turning guide rail 6 and the side core pull 3 slide relatively along the inclined surface through the second T-slot 10 and the second T-block 9.

[0025] Working principle: The oil cylinder 4 drives the steering guide rail 5 to retreat. The steering guide rail 5 converts the lateral movement of the oil cylinder 4 into the up-and-down movement of the secondary steering guide rail 6. At this time, if the mold only needs to be core-pulled upward, it can be achieved at this point. The secondary steering guide rail 6 drives the side core-pulling mechanism 3 to retreat, thereby realizing the core-pulling of the front mold without separating the hot runner plate 2 and the front template 1.

[0026] Those of ordinary skill in the art should understand that the discussion of any above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. There are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A front mold core-pulling mechanism, comprising a front template (1) and a hot runner plate (2). The hot runner plate (2) is located above the front template (1). A side core-pulling (3) is movably arranged inside the front template (1), and it is characterized in that, An oil cylinder (4) is installed on one side of the front template (1). The output end of the oil cylinder (4) extends into the front template (1) and is connected to a steering guide rail (5). One end of the steering guide rail (5) is slidably connected to a secondary steering guide rail (6), and the lower side of the secondary steering guide rail (6) is slidably connected to the side core-pulling (3).

2. The core-pulling mechanism for the front mold according to claim 1, characterized in that, The opposite surfaces of the steering guide rail (5) and the secondary steering guide rail (6) are both inclined surfaces, and the two inclined surfaces are adapted to each other. The inclined surface of the steering guide rail (5) is provided with a first T-shaped groove (7), and a first T-shaped block (8) is connected to the inclined surface of the secondary steering guide rail (6).

3. The front mold core-pulling mechanism according to claim 2, characterized in that, The first T-shaped groove (7) and the first T-shaped block (8) are adapted to each other, and the first T-shaped block (8) is slidably arranged in the first T-shaped groove (7).

4. A front mold core-pulling mechanism according to claim 1, characterized in that, The opposite surface of the secondary steering guide rail (6) and the side core-pulling (3) is a y-shaped structure, and the two opposite surfaces are adapted to each other.

5. The front mold core-pulling mechanism according to claim 4, characterized in that, A second T-shaped block (9) is provided on the inclined surface of the opposite surface of the secondary steering guide rail (6) and the side core-pulling (3), and a second T-shaped groove (10) is opened on the inclined surface of the opposite surface of the side core-pulling (3).

6. The front mold core-pulling mechanism according to claim 5, wherein, The second T-shaped groove (10) and the second T-shaped block (9) are adapted to each other, and the second T-shaped block (9) is slidably arranged in the second T-shaped groove (10).

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