Automatic core-pulling mold

Abstract

The utility model provides an automatic core-pulling mold which comprises a panel, a bottom plate, a first positioning ring and a second positioning ring, the first positioning ring and the second positioning ring are arranged between the panel and the bottom plate, a rotatable mold core is arranged on the bottom plate, a sprue nozzle is arranged on the panel, a plurality of sliding blocks are arranged above the mold core, and the sliding blocks are connected with the first positioning ring and the second positioning ring. A cavity is formed among the multiple sliding blocks in the embracing state, the mold core and the bottom of the panel, the sprue nozzle penetrates through the panel to be communicated to the cavity, a mold core is arranged in the cavity, mold columns are arranged on the faces, facing each other, of the sliding blocks, the first positioning ring limits the tops of the multiple sliding blocks in the embracing state, and the lower portion of the panel is connected with multiple inclined guide columns. The multiple inclined guide columns obliquely penetrate through the sliding block, a guide block for the sliding block to slide is arranged on the second positioning ring, a first thread used for product forming is arranged on the inner surface of the mold core, and a gear is arranged on the lower surface of the mold core and connected with the motor. According to the utility model, a product is directly brought out by the rotation of the die core during blanking, so that the die structure is simplified, the blanking action of the die is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to an automatic core-pulling mold. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. Its advantages include high production speed, high efficiency, automated operation, a wide variety of designs and colors, shapes ranging from simple to complex, and sizes ranging from large to small. Furthermore, it produces precise product dimensions, is easily updated, and can produce complex shapes. Injection molding is suitable for mass production and the molding of complex products.

[0003] In the existing technology, for some connectors with multiple threads and protruding through holes on the surface, the mold design is difficult. It is necessary to set up multiple layers of sliders to pull out the cores of the threads at different positions respectively. The mold parts are numerous and complex, making it difficult to produce and maintain. Utility Model Content

[0004] The utility model aims to provide an automatic core-pulling mould.

[0005] In order to achieve the above objectives, the following technical solutions are adopted:

[0006] The mould is installed in the moulding cavity, and the mould core is installed in the moulding cavity, and the mould core is installed in the moulding cavity. The ...

[0007] Furthermore, when a plurality of the sliders are embraced, the surfaces thereof facing each other jointly form a second thread.

[0008] Furthermore, a plurality of straight guide posts are provided on the second positioning ring, and the straight guide posts pass through the first positioning ring.

[0009] Furthermore, a mold column is provided on the surfaces of the sliders facing each other.

[0010] By adopting the above solution, the beneficial effects of the utility model are:

[0011] Based on the setting of the motor and the mold core, the product is directly taken out by the rotation of the mold core during unloading, thereby simplifying the mold structure, reducing the unloading action of the mold and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a product according to an embodiment of the present utility model.

[0013] Figure 2 This is a structural diagram of an automatic core-pulling mold according to an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the exploded structure of the automatic core-pulling mold according to an embodiment of the present utility model;

[0015] Figure 4 This is a structural schematic diagram of some components of the automatic core-pulling mold according to an embodiment of the present utility model.

[0016] The accompanying drawings illustrate:

[0017] 1. Panel; 2. Base plate; 3. First positioning ring; 4. Second positioning ring; 5. Mold core; 51. First thread; 6. Gate nozzle; 7. Slider; 71. Mold column; 72. Inclined guide column; 73. Guide block; 74. Second thread; 8. Gear; 9. Motor; 91. Belt; 10. Straight guide column; 11. Product. DETAILED DESCRIPTION

[0018] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative in nature and not to limit the present invention.

[0019] like Figure 1-4As shown, an automatic core-pulling mold includes a panel 1, a base plate 2 and a first positioning ring 3 and a second positioning ring 4 arranged between the panel 1 and the base plate 2. A rotatable mold core 5 is provided on the base plate 2, a gate nozzle 6 is provided on the panel 1, and a plurality of sliders 7 are provided above the mold core 5. A cavity is formed between the multiple sliders 7, the mold core 5 and the bottom of the panel 1 in an embraced state. The gate nozzle 6 passes through the panel 1 and is connected to the cavity. A core is provided in the cavity. The first positioning ring 3 limits the top position of the multiple sliders 7 when embraced. A plurality of inclined guide pillars 72 are connected to the bottom of the panel 1. The plurality of inclined guide pillars 72 obliquely pass through the slider 7. A guide block 73 for sliding the slider 7 is provided on the second positioning ring 4. The inner surface of the mold core 5 is provided with a first thread 51 for molding a product 11, and a gear 8 is provided on its lower surface. The gear 8 is connected to a motor 9 installed on the second positioning ring 4 through a belt 91, and a mold column 71 is provided on the side of the slider 7 facing each other.

[0020] When a plurality of slide blocks 7 are embraced, the one side facing each other forms the second thread 74. Like this, the slide block 7 also can be used for the thread forming of the product 11.

[0021] The second positioning ring 4 is provided with a plurality of straight guide pins 10, which pass through the first positioning ring 3 to improve the travel stability of the first positioning ring 3 and the second positioning ring 4.

[0022] Working principle:

[0023] During injection molding, the raw material enters the cavity from the gate nozzle 6 to form Figure 1 During demolding, the panel 1 moves, driving the first positioning ring 3 and the inclined guide pillars 72 to move. The first positioning ring 3 disengages from the tops of the multiple sliders 7. The movement of the inclined guide pillars 72 causes the multiple sliders 7, which were embracing each other, to separate radially and obliquely upward along their respective guide blocks 73. The mold pillars 71 are gradually withdrawn from the through-holes of the product 11. During separation, the motor 9 rotates, driving the mold core 5 to rotate. However, the mold pillars 71 are not completely withdrawn from the through-holes of the product 11 at this time, so the product 11 cannot rotate. Due to the threaded connection between the product 11 and the mold core 5, the product 11 is separated from the mold core 5, completing the demolding.

[0024] Beneficial effects:

[0025] Based on the arrangement of the motor 9 and the mold core 5, the product 11 is directly brought out by the rotation of the mold core 5 during unloading, thereby simplifying the mold structure, reducing the unloading action of the mold, and improving production efficiency.

[0026] While the present disclosure has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present disclosure can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. An automatic core-pulling mold, characterized in that: It includes a panel, a bottom plate and a first positioning ring and a second positioning ring arranged between the panel and the bottom plate, the bottom plate is provided with a rotatable mold core, the panel is provided with a gate nozzle, a plurality of sliders are provided above the mold core, a cavity is formed between the plurality of sliders in an embraced state, the mold core and the bottom of the panel, the gate nozzle passes through the panel and is connected to the cavity, a core is provided in the cavity, columns are provided on the surfaces of the sliders facing each other, the first positioning ring limits the top positions of the plurality of sliders in an embraced state, a plurality of inclined guide columns are connected below the panel, the plurality of inclined guide columns obliquely pass through the slider, a guide block for the slider to slide is provided on the second positioning ring, a first thread for product molding is provided on the inner surface of the mold core, a gear is provided on its lower surface, and the gear is connected to a motor installed on the second positioning ring through a belt.

2. The automatic core-pulling mold according to claim 1, characterized in that: When a plurality of the sliders are embraced, the surfaces facing each other jointly form a second thread.

3. The automatic core-pulling mold according to claim 1, characterized in that: The second positioning ring is provided with a plurality of straight guide posts, and the straight guide posts pass through the first positioning ring.

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