Mold ejection strong pull mechanism

Abstract

A female mold ejection strong pulling mechanism, comprising: a female mold plate and a male mold plate, the female mold plate is provided with a slider block on one side corresponding to the direction of the male mold plate, the slider block is connected with an inclined movable slider, the movable slider is provided with a slider guide fixed sleeve, the back side of the slider block connected with the movable slider is provided with two slider positioning V grooves, the slider guide fixed sleeve is provided with a slider positioning steel ball corresponding to the slider positioning V groove, the slider positioning steel ball positions the maximum sliding stroke of the slider, the movable slider is provided with a pin-shaped protrusion near the mold core end, the pin-shaped protrusion is connected with a reset needle, one end of the reset needle is provided with a recess connected with the pin-shaped protrusion of the movable slider, and the other end is provided with a T-shaped fixed in the ejection system, the female mold ejection mechanism in the mold opening process has high stability and large pulling force, the working efficiency is improved, and the mold repairing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of mold structure, specifically to a mold ejection strong pulling mechanism. Background Technology

[0002] At present, in mold production, the ejection mechanism on the master mold is a commonly used mechanism in molds, and it is widely used in both plastic molds and die-casting molds. As society's requirements for personalization and functionality increase, the application of master mold ejection in molds is becoming more widespread.

[0003] In current molds, the ejection force of the female mold is usually provided by a spring, or by a spring combined with a return pin with a urethane rubber opening and closing device. However, these are all flexible, and in actual mass production, the ejection force of the female mold is often insufficient and jams, so stability cannot be guaranteed.

[0004] Therefore, it is necessary to design a mold ejection mechanism with high stability and high tensile strength. Summary of the Invention

[0005] The technical problem to be solved by this invention is: to solve the problem of insufficient ejection force and jamming in existing plastic molds or die-cast films. Since the original mold ejection usually uses springs or urethane openers to provide power, the power source is unstable. This invention provides a strong ejection mechanism for the mold to solve the above problems.

[0006] The solution to the technical problem of this invention is: a mold ejection force-pulling mechanism, comprising:

[0007] The female template has a slider block on one side corresponding to the male template direction. The slider block is connected to the movable slider end. The movable slider is fitted with a slider guide fixing sleeve. The slider guide fixing sleeve is equipped with a slider positioning device. The slider positioning steel ball positions the maximum sliding stroke of the slider. The movable slider near the mold core end is equipped with a pin-shaped protrusion. The pin-shaped insert is connected to a return pin. One end of the return pin is equipped with a groove to connect to the pin-shaped insert of the movable slider, and the other end is equipped with a T-shape to be fixed to the ejection system.

[0008] The male template corresponds to the female template. The male template is equipped with a slider guide fixing sleeve. The back side of the movable slider connecting the slider block is provided with two slider positioning V-grooves. The slider guide fixing sleeve is provided with a slider positioning device at the corresponding slider positioning V-grooves.

[0009] Preferably, the slider block is inclined at the end connected to the movable slider, and a delay control height is left between the slider block and the movable slider.

[0010] Preferably, the movable slider has two V-grooves on the end opposite to the slider lever, and the two V-grooves correspond to the positions of the slider positioning steel balls when the slider has the maximum and minimum stroke.

[0011] Preferably, the movable slider is assembled inside the slider guide fixing sleeve.

[0012] Preferably, the length of the pin-shaped protrusion near the mold core of the movable slider is slightly longer than the groove at the lower end of the return pin.

[0013] The beneficial effects of this invention are as follows: During mold opening, the slider and pusher block move upwards with the mother mold plate. Because the pusher block delays the mold opening height, the slider remains stationary with the return pin inserted before the delay height to achieve greater pulling force. As mold opening continues, after the delay height, the pusher block moves the slider backwards. At this point, the mother mold has moved a distance from the ejector end, and the sticking force of the mother mold decreases. The pusher block then moves the slider out of the return pin. This invention provides a highly stable and powerful mother mold ejection mechanism during the mold opening process. It avoids the problem of large sticking force on the mother mold or jamming during ejection at high temperatures, improving work efficiency and reducing mold repair costs. Attached Figure Description

[0014] Figure 1 This is a full cross-sectional schematic diagram of all components of the mold ejection and strong pulling mechanism of the present invention.

[0015] Figure 2 This is a component of the mold ejection and strong pulling mechanism of the present invention. Figure 1 A schematic diagram of the full section along direction A.

[0016] Figure 3 This is a component of the mold ejection and strong pulling mechanism of the present invention. Figure 1 A schematic diagram of the full section along direction B. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention, a preferred embodiment of the present invention and its accompanying drawings are described in detail below.

[0018] This invention provides a mold ejection force-pulling mechanism, comprising:

[0019] A connecting slider block 110 is provided on the inner side of the female mold core 101 corresponding to the male mold core 200 at the outer end of the female mold core 100. The protruding end of the slider block 110 is inclined to the outside of the female mold core 101, and the other end of the slider block 110 passes through the movable slider 210. The movable slider 210 is installed in the slider guide fixing sleeve 220.

[0020] The public template 200 is equipped with a slider guide fixing sleeve 220. The movable slider 210 is connected to the slider block 110 and has two slider positioning V-grooves 211 on the back side. The slider guide fixing sleeve 220 is provided with a slider positioning device 230 corresponding to the slider positioning V-grooves 211.

[0021] The positioning device 230 is provided with a slider positioning steel ball 231 at one end, and a spring 232 is provided inside the positioning device 230. The spring 232 applies pressure to the slider positioning steel ball 231, so that when the movable slider 210 is not moved by the slider pusher block 110, the slider positioning steel ball 231 is located at the slider positioning V groove 211 to position the movable slider 210.

[0022] The slider block 110 and the movable slider 210 are provided with a delayed sliding distance. One end of the movable slider 110 is provided with a pin-shaped protrusion 212, and a return pin 150 is provided correspondingly for the pin-shaped protrusion 212.

[0023] The return pin 150 penetrates the female mold core 101. One end of the return pin 150 is provided with a groove to cooperate with the pin-shaped protrusion 212, and the other end is provided with a T-shaped fixed to the ejection device 120 of the female mold core 100.

[0024] In this specific embodiment, the operation process of the female mold ejection strong pulling mechanism is as follows: When the mold is opened, the slider block 110 moves upward with the female mold plate 100. Since the slider block 110 and the movable slider 210 are provided with a delayed stroke, the movable slider 210 is always inserted with the return pin 150, thereby realizing a stable strong pulling force on the female mold ejection device 120. At this time, the female mold ejection device 120 has ejected a distance, the female mold sticking force is reduced, and the mold continues to open until the slider block 110 moves the movable slider 210 to make the pin-shaped protrusion 212 exit the return pin 150. The mold continues to open, and the return pin 150 moves together with the ejection device 120. Subsequently, the ejection device 120 continues to complete the product ejection. This embodiment provides a female mold ejection mechanism with high stability and strong pulling force in the mold opening process, avoiding the problem of female mold sticking force being large or female mold ejection jamming at high temperature, improving work efficiency and reducing mold repair costs.

[0025] It should be noted that the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments based on the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A mold ejection force-pulling mechanism, comprising: A female template, on one side of which a slider block is connected to the male template, the slider block is connected to a movable slider, and the slider block passes through the movable slider; The male template corresponds to the female template. A slider guide fixing sleeve is mounted on the male template. The movable slider is mounted inside the slider guide fixing sleeve. Two slider positioning V-grooves are provided on the back side of the movable slider connecting to the slider lever. A slider positioning device is provided on the slider guide fixing sleeve corresponding to the slider positioning V-grooves. A slider positioning ball is provided at one end of the slider positioning device. A spring is provided inside the slider positioning device. The spring applies pressure to the slider positioning ball. The slider positioning ball positions the slider at its maximum sliding stroke. A pin-shaped protrusion is provided at the end of the movable slider near the female mold core. A return pin penetrates the female mold core. A groove is provided at the lower end of the return pin to cooperate with the pin-shaped protrusion. The other end of the return pin is T-shaped and fixed to the ejection device of the female template. The end of the slider block that connects to the movable slider is inclined, and there is a delay control height between the slider block and the movable slider. When the mold opens, the slider block moves upward with the mother mold plate. Since the slider block and the movable slider have a delay stroke, the movable slider is always inserted with the return pin. When the mold continues to open, the slider block moves the movable slider to make the pin-shaped protrusion exit the return pin.

2. The mold ejection force-pulling mechanism as described in claim 1, characterized in that: The two slider positioning V-grooves correspond to the positions of the slider positioning steel balls when the slider has its maximum and minimum stroke, respectively.

3. The mold ejection force-pulling mechanism as described in claim 1, characterized in that: The length of the pin-shaped protrusion near the end of the movable slider is slightly longer than the groove at the lower end of the return pin.

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