CN218749093U - Plastic mould slider delays demoulding structure - Google Patents

Abstract

The utility model discloses a delayed demoulding structure of a plastic mold slider, which comprises a male template and a female template. A male mold kernel is installed at the bottom of the male template, and several inclined guide pillars are arranged at the bottom of the male template. Distributed around the core of the male die, a wedge-shaped guide rod is installed at the center of the bottom end of the male die, the female die is located below the male die, and several first guide sleeves are slidably installed in the female die, each first guide sleeve is respectively connected to the The corresponding slanted guide posts are compatible with each other, each first guide sleeve is equipped with a first master mold core, and a second guide sleeve is slidably installed on the master template. The setting of the guide post, the first guide sleeve, the first female mold core, the wedge-shaped guide rod and the second female mold core, the inclined guide post and the wedge-shaped guide rod move up and guide the first guide sleeve away from each other during demoulding, so that Plastic parts with side holes or side recesses can achieve the purpose of lateral core pulling, which is convenient for demoulding, so as to achieve the purpose of core pulling first, and then realize the purpose of delaying the demoulding of the slider.

Description

Delayed demoulding structure of a plastic mold slider

technical field

The utility model relates to the technical field of injection mold demoulding structures, in particular to a delayed demoulding structure of a plastic mold slider.

Background technique

Injection molding is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to melting plastic by heat. The injection molding machine injects into the mold cavity under high pressure, and after cooling and solidifying, the molded product is obtained.

The traditional mold opening structure usually separates the slider first, and then pulls the core. However, for plastic parts with side holes or undercuts, the side core must be pulled or the slider separated before being ejected from the mold. Can demould smoothly, therefore need a kind of delayed demoulding structure of plastic mold slider to satisfy people's demand.

Utility model content

The purpose of this utility model is to provide a delayed demoulding structure for plastic mold sliders to solve the traditional mold opening structure proposed in the above background technology, usually the sliders are separated first, and then the core is pulled. For concave plastic parts, before being ejected from the mold, it is necessary to pull the core sideways or separate the sliders to be able to demould smoothly.

In order to achieve the above object, the utility model provides the following technical solutions: a plastic mold slider delayed demoulding structure, including a male template and a female template, the bottom of the male template is equipped with a male mold core, and the bottom of the male template is set There are several slanted guide pillars, which are distributed around the male mold core. A wedge-shaped guide rod is installed at the center of the bottom end of the male formwork. The female formwork is located below the male formwork. Several first A guide sleeve, each first guide sleeve is adapted to the corresponding inclined guide column, each first guide sleeve is equipped with a first master die core, and the master template is slidably installed with a second guide sleeve, The second guide sleeve is adapted to the wedge-shaped guide rod, and one side of the second guide sleeve is provided with a second female mold core, and the second female mold core is adapted to several first female mold cores and male mold cores. A thimble plate is installed at the bottom of the template, and a first thimble and a second thimble are installed in the thimble plate. between benevolence.

Preferably, a hot runner device is arranged in the male template.

Preferably, a runner is opened on the first female mold core, the top of the runner communicates with the hot runner device, and one end of the runner communicates with the mold cavity formed between the first female mold core and the second female mold core, The first ejector pin fits the sprue.

Preferably, a slanted hole is opened in the first guide sleeve, and the slanted guide post is adapted to the slanted hole.

Preferably, the bottom ends of the first guide sleeve and the second guide sleeve are equipped with limit sliders, and there are several limit slide slots in the mother template, and each limit slider is slidably installed on the corresponding limit slide. inside the chute.

Preferably, a T-shaped slide block is installed on the inclined surface of the wedge-shaped guide rod, and a T-shaped slide groove is provided on the inclined surface of the second guide sleeve, and the T-shaped slide block and the T-shaped slide groove are matched with each other.

Preferably, air pipes are connected to the first guide sleeve, the second guide sleeve, the first thimble and the second thimble, and each air pipe is connected to an air cylinder.

The beneficial effects of the utility model are:

In the utility model, through the setting of the inclined guide post, the first guide sleeve, the first female die core, the wedge-shaped guide rod and the second female die core, the inclined guide post and the wedge-shaped guide rod move up and guide the first guide sleeve during demoulding. They are far away from each other, so that the plastic parts with side holes or undersides can achieve the purpose of lateral core pulling, which is convenient for demoulding, so as to achieve the purpose of first core pulling, and then realize the purpose of delaying the demoulding of the slider.

Description of drawings

Fig. 1 is the schematic diagram of the clamping structure of a kind of plastic mold slider delayed demoulding structure that the utility model proposes;

Fig. 2 is the schematic diagram of the mold opening structure of a kind of plastic mold slider delayed demoulding structure that the utility model proposes;

Fig. 3 is a schematic diagram of the ejection structure of a delayed demoulding structure of a plastic mold slider proposed by the utility model;

Fig. 4 is a schematic diagram of the internal structure of a plastic mold slider delayed demoulding structure proposed by the utility model.

In the figure: 1. Male template; 2. Female template; 3. Male mold core; 4. Inclined guide post; 5. Wedge guide rod; 6. First guide sleeve; 7. First female mold core; 8. Second Guide sleeve; 9. Second female core; 10. Ejector plate; 11. First thimble; 12. Second thimble; 13. Hot runner device; 14. Sprue; 15. Inclined hole; 16. Limit slider ; 17, limit chute; 18, T-shaped slider; 19, T-shaped chute.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-4, a delayed demoulding structure of a plastic mold slider includes a male template 1 and a female template 2. A male mold core 3 is installed at the bottom of the male template 1, and several inclined molds are arranged at the bottom of the male template 1. Guide pillars 4 and oblique guide pillars 4 are distributed around the male mold core 3. A wedge-shaped guide rod 5 is installed at the center of the bottom end of the male template 1. The female template 2 is located below the male template 1. There are several slides installed in the female template 2. A first guide sleeve 6, each first guide sleeve 6 is adapted to the corresponding inclined guide column 4, each first guide sleeve 6 is equipped with a first female mold core 7, and the female template 2 is slidably installed There is a second guide sleeve 8, and the second guide sleeve 8 is adapted to the wedge-shaped guide rod 5. One side of the second guide sleeve 8 is provided with a second female mold core 9, and the second female mold core 9 is connected with several first female mold cores. The mold core 7 and the male mold core 3 are matched, and the bottom of the female template 2 is equipped with a thimble plate 10, and a first thimble 11 and a second thimble 12 are installed in the thimble plate 10, and the first thimble 11 is located in the first female mold core. 7, the second thimble 12 is located between the first female mold core 7 and the second female mold core 9. When the mold is closed, the male template 1 drives the male mold core 3, the inclined guide post 4 and the wedge-shaped guide rod 5 to descend. When the inclined guide post 4 is in contact with the first guide sleeve 6, the first guide sleeve 6 is guided to approach each other, so that the first female mold cores 7 are close to each other, and the wedge-shaped guide rod 5 drives the second guide sleeve 8 and drives the second female mold core. 9 approaches the first female mold core 7, and the male mold core 3 and the first female mold core 7 approach to form a mold cavity. After the injection molding is completed, the male template 1 rises, and at the same time drives the inclined guide post 4 and the wedge-shaped guide rod 5 rises to drive the first guide sleeves 6 away from each other. Since the plastic part has side holes and undercuts, this structure achieves the purpose of lateral core pulling, thereby realizing the purpose of delayed demoulding of the slider.

Referring to Figures 1-2, in this embodiment, a hot runner device 13 is provided in the male template 1, and the hot runner device 13 ensures that the plastic in the runner and gate remains in a molten state by heating, thereby shortening the molding cycle and improving the injection molding efficiency. Efficiency, save raw materials, reduce costs.

Referring to Figures 1-3, in this embodiment, a runner 14 is opened on the first female mold core 7, the top of the runner 14 communicates with the hot runner device 13, and one end of the runner 14 communicates with the first female mold core 7 and the In the mold cavity formed between the second female mold cores 9, the first thimble 11 is adapted to the runner 14. When demoulding, when the first guide sleeve 6 drives the first female mold core 7 away from the plastic part, the sprue The channel 14 is located above the first thimble 11 , thereby facilitating the demoulding of the plastic parts cooled and formed in the runner 14 .

Referring to Fig. 4, in the present embodiment, the first guide sleeve 6 is provided with an oblique hole 15, the oblique guide post 4 is compatible with the oblique hole 15, and the oblique hole 15 realizes the movement of the oblique guide post 4 in the vertical direction to drive the first The guide sleeve 6 realizes the movement in the horizontal direction, so as to realize the purpose of demoulding and mold closing.

Referring to Fig. 1-2 and Fig. 4, in this embodiment, the bottom ends of the first guide sleeve 6 and the second guide sleeve 8 are equipped with limit sliders 16, and several limit chute 17 are opened in the mother template 2, Each limit slider 16 is slidably installed in the corresponding limit chute 17 respectively, and the cooperation between the limit chute 17 and the limit slider 16 provides lateral limit for the first guide sleeve 6 and the second guide sleeve 8 . The position ensures the horizontal movement between the first guide bush 6 and the second guide bush 8.

Referring to Fig. 2 and Fig. 4, in the present embodiment, T-shaped slide block 18 is installed on the inclined surface of wedge-shaped guide rod 5, and T-shaped slide groove 19 is opened on the inclined surface on the second guide sleeve 8, and T-shaped slide block 18 and The T-shaped chute 19 is mutually adapted, and between the T-shaped chute 19 and the T-shaped sliding block 18, the fit between the second guide sleeve 8 and the wedge-shaped guide rod 5 is more tightly fitted.

Referring to Figures 1-3, in this embodiment, the first guide sleeve 6, the second guide sleeve 8, the first thimble 11 and the second thimble 12 are all connected with air pipes, and each air pipe is connected with an air cylinder, which is convenient for the first The reset between the guide bush 6 and the second guide bush 8 facilitates the ejection of the plastic parts and the molded products at the sprue 14 by the first ejector pin 11 and the second ejector pin 12 .

The above is only a preferred embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field is within the technical scope disclosed by the utility model. Any equivalent replacement or change of the technical solution and the concept of the utility model shall fall within the scope of protection of the utility model.

Claims (7)

1. A plastic mold slider delayed demoulding structure, comprising male formwork (1) and female formwork (2), is characterized in that: the bottom end of described male formwork (1) is equipped with male die kernel (3), male formwork (1) The bottom end of the formwork (1) is provided with a number of inclined guide pillars (4), which are distributed around the male die core (3), and a wedge-shaped guide rod is installed at the center of the bottom end of the male formwork (1) (5), the female template (2) is located below the male template (1), and several first guide sleeves (6) are slidably installed in the female template (2), and each first guide sleeve (6) is respectively connected with The corresponding oblique guide columns (4) are adapted to each other, and each first guide sleeve (6) is equipped with a first master die core (7), and the master template (2) is slidably installed with a second guide sleeve ( 8), the second guide sleeve (8) is adapted to the wedge-shaped guide rod (5), and one side of the second guide sleeve (8) is provided with a second female mold core (9), and the second female mold core (9) Compatible with several first female mold cores (7) and male mold cores (3), the bottom end of the female template (2) is equipped with a thimble plate (10), and the thimble plate (10) is equipped with a first The thimble (11) and the second thimble (12), the first thimble (11) is located under the first female mold core (7), and the second thimble (12) is located between the first female mold core (7) and the second between the female mold kernels (9). 2. A plastic mold slider delayed demoulding structure according to claim 1, characterized in that: a hot runner device (13) is arranged in the male template (1). 3. The delayed demoulding structure of a plastic mold slider according to claim 1, characterized in that: a sprue (14) is opened on the first female mold core (7), and the top of the sprue (14) It communicates with the hot runner device (13), and one end of the sprue (14) is connected to the mold cavity formed between the first female mold core (7) and the second female mold core (9), and the first thimble (11) and Runner (14) is compatible. 4. A delayed demoulding structure for a plastic mold slider according to claim 1, characterized in that: the first guide sleeve (6) is provided with an oblique hole (15), and the oblique guide column (4) is connected with the oblique hole (15). The holes (15) are compatible. 5. A delayed demoulding structure for plastic mold sliders according to claim 1, characterized in that: the bottom ends of the first guide sleeve (6) and the second guide sleeve (8) are equipped with limit sliders (16), the mother template (2) is provided with several limit chutes (17), and each limit slide block (16) is slidably installed in the corresponding limit chute (17). 6. A plastic mold slider delayed demoulding structure according to claim 1, characterized in that: a T-shaped slider (18) is installed on the inclined surface of the wedge-shaped guide rod (5), and the second guide sleeve ( 8) Offer T-shaped chute (19) on the inclined surface on the top, and T-shaped slide block (18) and T-shaped chute (19) are compatible with each other. 7. A delayed demoulding structure for a plastic mold slider according to claim 1, characterized in that: the first guide sleeve (6), the second guide sleeve (8), the first thimble (11) and the second Both thimbles (12) are connected with trachea, and each trachea is connected with cylinder.

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