Secondary sliding block inner core-pulling mold stripping structure

Abstract

The utility model relates to a secondary sliding block inner core-pulling mold stripping structure which comprises a sliding block mold core, a sliding block seat, a secondary sliding block seat, a core-pulling insert, an ejector pin plate pull block, a round ejector pin, a sliding block ejector pin plate driving assembly, an inner core-pulling driving assembly and an oil cylinder, and the front side of the sliding block seat is connected with the ejector pin plate pull block and the round ejector pin on the two sides of the sliding block mold core through the sliding block ejector pin plate driving assembly. A core-pulling insert is arranged in the sliding block mold core and connected with an inner core-pulling driving assembly and a sliding block ejector plate driving assembly, and the inner core-pulling driving assembly is connected with an oil cylinder through a secondary sliding block base. The secondary sliding block inner core-pulling mold stripping structure is simple, safe and reliable in operation action, smooth demolding of mold stripping structure products such as reverse buckles in different directions on the sliding block is achieved through the sliding block oil cylinder, automatic production can be completed, production efficiency is improved, and meanwhile manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to a secondary slide block inner core-pulling demoulding structure, belonging to the technical field of demoulding structures. Background Art

[0002] With the development of the plastics industry, plastic products are expanding and being used more and more widely in various industries, and the structure of products is becoming more and more complex. There are higher requirements for the precision matching of molds and the stability of dimensions. Especially when the product has special functions, special requirements and unexpected shapes. There will be greater breakthroughs in structure to meet the design requirements.

[0003] With the pursuit of excellence in quality and the advancement of social science and technology, the application of plastic products has become diversified in various fields. The product shape has become more complicated. At the same time, there are also typical parts with special structures. It is necessary to consider the rationality and stability of the structure, the simplicity of processing and the convenience of production. How to demould smoothly under complex models.

[0004] The car is equipped with Figure 1 The products shown in (a), (b), and (c) have two core pulling locations and two deep cavity ejection locations; the two core pulling locations require separate design of core pulling locations and motors and other cooperating moving parts to complete. Currently, the conventional ejection structure cannot achieve smooth ejection of the product, which causes damage to the product during ejection. Therefore, the undercut requires an additional more complex ejection structure, which increases costs, makes processing difficult, and has an unstable structure. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a simple, safe, reliable and highly efficient secondary slider inner core-pulling demoulding structure, which solves the problem that the current demoulding structure cannot realize the conventional secondary slider and demoulding smoothly.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a secondary slider internal core pulling and demolding structure, including a slider core, a slider seat, a secondary slider seat, a core pulling insert, a pin plate pull block, a dome pin, a slider pin plate drive assembly, an internal core pulling drive assembly, and an oil cylinder. The front of the slider seat is connected to the pin plate pull blocks and dome pins on both sides of the slider core through the slider pin plate drive assembly. A core pulling insert is provided in the slider core, and the core pulling insert is connected to the internal core pulling drive assembly. The slider pin plate drive assembly and the internal core pulling drive assembly are connected to the oil cylinder through the secondary slider seat.

[0007] Furthermore, the slider ejector plate driving assembly includes a slider ejector base plate, a slider ejector panel, and a secondary slider seat. The slider ejector panel is fixedly connected to the round ejector in front and is connected to the secondary slider seat through the slider ejector base plate, a spring, and a plug screw.

[0008] Furthermore, the ejector plate pull block is cooperatively connected with the ejector plate pull rod on the ejector panel of the slider.

[0009] Furthermore, the internal core pulling drive assembly includes a wear-resistant block, a core pulling insert shovel base wear-resistant block, and a core pulling insert shovel base. The core pulling insert shovel base is connected to the slide core through the wear-resistant block, the core pulling insert shovel base wear block, and the front end of the core pulling insert shovel base extends into the core pulling insert installed in the slide core, and the rear end is fixedly connected to the secondary slide seat.

[0010] Furthermore, an inclined hole is provided in the core-pulling insert.

[0011] Furthermore, an inclined rod matching the inclined hole in the core-pulling insert is provided at the front end of the core-pulling insert shovel base.

[0012] Furthermore, the oil cylinder is fixedly connected to the slider core, the slider seat, the secondary slider seat, the slider ejector panel, and the pressure strips on both sides of the slider ejector bottom plate through the oil cylinder fixing plate.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is simple, safe and reliable to operate, and the products with demoulding structures such as undercuts in different directions on the slide block can be smoothly demoulded through the slide block oil cylinder, so that automated production can be completed, production efficiency can be improved, and manpower and material resources can be saved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the inverted part on the product;

[0016] Among them: (a) front view, (b) AA section view, (c) stereogram;

[0017] Figure 2 This is a schematic diagram of the overview of the core-pulling mating parts in the secondary slide;

[0018] Figure 3 This is the main view of the core pulling in the slider;

[0019] Figure 4 for Figure 3 Sectional view along BB;

[0020] Figure 5 for Figure 4 A partial enlarged view of the inner core pulling component;

[0021] Figure 6 It is a schematic diagram of the core pulling assembly and matching parts in the secondary slide;

[0022] Figure 7 It is a schematic diagram of the structure of the inner core pulling component;

[0023] Figure 8 It is a schematic diagram of the structure of the ejector plate assembly;

[0024] In the figure: 1, slider core; 2, slider seat; 3, secondary slider seat; 4, cylinder fixing plate; 5, slider ejector panel; 6, slider ejector bottom plate; 7, core pulling insert; 8, core pulling insert shovel base; 9, ejector plate pull block; 10, ejector plate pull rod; 11, pressure strip; 12, wear-resistant block; 13, core pulling insert shovel base wear-resistant block; 14, dome ejector; 15, spring and plug screw; 16, cylinder. DETAILED DESCRIPTION

[0025] In order to make the utility model more obvious and easy to understand, the preferred embodiment is described in detail with the accompanying drawings. The problem that needs to be solved is the rationality of designing the core pulling in the slider, how to design different core pulling structures in the slider direction at the same time, because the product is buckled in different directions of the slider buckle, it is necessary to ensure the stability of the core pulling and the stability of the slider ejector plate.

[0026] like Figures 2 to 8 As shown, a secondary slider inner core-pulling demolding structure of the utility model includes a slider core 1, a slider seat 2, a secondary slider seat 3, a cylinder fixing plate 4, a slider ejector panel 5, a slider ejector bottom plate 6, a core-pulling insert 7, a core-pulling insert shovel base 8, an ejector plate pull block 9, an ejector plate pull rod 10, a pressure strip 11, a wear-resistant block 12, a core-pulling insert shovel base wear-resistant block 13, a dome ejector pin 14, a spring and a plug screw 15, and a cylinder 16.

[0027] The front of the slider seat 2 is provided with a slider ejector base plate 6 and a slider ejector panel 5, and the rear of the slider seat 2 is provided with a secondary slider seat 3. The front of the secondary slider seat 3 is connected to the slider ejector base plate 6 and the slider ejector panel 5 by a spring and a plug screw 15, and the rear is fixedly connected to the piston rod of the oil cylinder 16; a dome ejector 14 is provided on the slider ejector panel 5, and the dome ejector 14 is connected to the ejector plate pull blocks 9 on both sides of the slider core 1 to form a slider ejector plate drive assembly B, and the ejector plate pull blocks 9 are connected to the ejector plate on the slider ejector panel 5. The ejector plate pull rod 10 is connected in cooperation; the core pulling insert shovel base 8 is connected to the slider core 1 through the wear-resistant block 12 and the core pulling insert shovel base wear-resistant block 13, the front end of the core pulling insert shovel base 8 extends into the core pulling insert 7 installed in the slider core 1, and the rear end is fixedly connected to the secondary slider seat 3 to form an internal core pulling drive assembly A; the slider core 1, the slider seat 2, the secondary slider seat 3, the slider ejector panel 5, and the slider ejector bottom plate 6 are provided with a pressure strip 11 on both sides, and the cylinder fixing plate 4 and the cylinder 16 are connected through the pressure strip 11. An inclined hole is provided in the core pulling insert 7. An inclined rod matching the inclined hole in the core pulling insert 7 is provided at the front end of the core pulling insert shovel base 8. The rear end of the core pulling insert shovel base 8 passes through the slider ejector panel 5, the slider ejector bottom plate 6 and the slider seat 2 and is fixedly connected to the secondary slider seat 3.

[0028] The screw thread requires the slider core 1 to drive the core-pulling insert 7, and the product surface on the slider core 1 is relatively large to prevent the slider from driving the product. The slider core 1 is provided with an ejector plate structure, and the core-pulling insert 7 on the slider core 1 and the slider ejector plate have a sequence. First, the slider core 1 drives the core-pulling insert 7, and then the slider ejector plate can be driven to prevent the product from standing on the slider. The slider core-pulling insert 7 is wrapped by the large slider core 1 and has a large stroke. The core-pulling design of the rear mold insert cannot be considered and needs to be considered on the slider. The above is the core-pulling in the slider, see as Figure 2 . Ordinary sliders are single motion. Due to product problems, the products now have many ribs on the slider, and the area is large. It is necessary to consider that the product does not stick to the slider, so it is necessary to design an ejector plate on the slider. The above is a summary of the movement of the slider ejector part, see Figure 7 The core-pulling insert 7 and the slider ejector plate have a sequence. The core-pulling insert moves a distance before the large slider can slide. The ejector plate does not move, holding the product without being affected by the slider. Figure 3 , as shown in Figures 4 and 5.

[0029] The steps of using the utility model are as follows:

[0030] Step 1: First, remove the core-pulling insert 7 in the slider core 1. When opening the mold: the cylinder 16 drives the secondary slider seat 3. The core-pulling insert 7 has a downward stroke under the action of the core-pulling insert shovel base 8. When the secondary slider seat 3 slides, it slides 35MM under the action of the spring and the plug screw 15. At this time, the core-pulling insert 7 in the slider core 1 has been detached from the undercut.

[0031] When the inner pull-out insert 7 has not yet been separated from the undercut, the slider ejector plate drive assembly cannot slide, and the inner pull-out drive assembly must be Figure 5 When sliding to 35MM, the inner core-pulling insert 7 cannot be separated from the core-pulling insert shovel base 8, so it is easy to return to the position, and then the next action can be carried out, and a series of inner core-pulling coordination relationships

[0032] Step 2: At this time, the oil cylinder 16 continues to drive, and the slider core 1 and the slider seat 2 continue to be separated from the undercut. At this time, the ejector plate is under the action of the ejector plate pull block 9 and the ejector plate pull rod 10, and the slider ejector panel 5 and the slider ejector bottom plate 6 continue to remain motionless. When the slider core 1 and the slider seat slide 15MM, the slider core 1 has been separated from the main rib position of the product, and the oil cylinder 16 continues to drive. The entire inner core pulling drive assembly and the slider ejector plate drive assembly continue to be separated from the product undercut until the secondary slider seat 3 hits the oil cylinder fixed plate 4, and the slider core 1 is completely separated from the product undercut, and a series of slider ejector plate drive assembly relationships

[0033] After the slider moves and the product is taken out, the entire slider can be returned to its original position in sequence under the drive of the oil cylinder 16 when the mold is closed. Considering the product safety, the slider ejector plate drive assembly is designed with an interlocking method of ejector plate pull block 9 and ejector plate pull rod 10. This improves product mass production and safety.

[0034] The complex structure is avoided. The overall application of this structure is ingenious. The design of the inner core pull and other related accessories on the conventional slider is realized through two-step movement, which can realize the risk of different directions of ejection on the slider and large products not sticking to the slider. It can complete automated production, improve production efficiency, and save manpower and material resources.

Claims

1. A secondary slider inner core-pulling and mold-out structure, characterized in that: It includes a slider core, a slider seat, a secondary slider seat, a core pulling insert, an ejector plate pull block, a dome pin, a slider ejector plate drive assembly, an inner core pulling drive assembly, and an oil cylinder. The front of the slider seat is connected to the ejector plate pull blocks and dome pins on both sides of the slider core through the slider ejector plate drive assembly. A core pulling insert is provided in the slider core, and the core pulling insert is connected to the inner core pulling drive assembly. The slider ejector plate drive assembly and the inner core pulling drive assembly are connected to the oil cylinder through the secondary slider seat.

2. The secondary slider inner core-pulling and mold-out structure according to claim 1 is characterized in that: The slider ejector plate driving assembly includes a slider ejector base plate, a slider ejector panel, and a secondary slider seat. The front of the slider ejector panel is fixedly connected to a round ejector pin, and is connected to the secondary slider seat through the slider ejector base plate, a spring, and a plug screw.

3. The secondary slider inner core-pulling and mold-out structure according to claim 2 is characterized in that: The ejector plate pull block is cooperatively connected with the ejector plate pull rod on the ejector panel of the slider.

4. The secondary slider inner core-pulling and mold-out structure according to claim 1 is characterized in that: The inner core pulling drive assembly includes a wear-resistant block, a core pulling insert shovel base wear-resistant block, and a core pulling insert shovel base. The slider core is connected to the core pulling insert shovel base through the wear-resistant block, the core pulling insert shovel base wear-resistant block, the front end of the core pulling insert shovel base extends into the core pulling insert installed in the slider core, and the rear end is fixedly connected to the secondary slider seat.

5. The secondary slider inner core-pulling and mold-out structure according to claim 4 is characterized in that: An inclined hole is provided in the core-pulling insert.

6. The secondary slider inner core-pulling and mold-out structure according to claim 4 is characterized in that: The front end of the core-pulling insert shovel base is provided with an inclined rod matched with the inclined hole in the core-pulling insert.

7. The secondary slider inner core-pulling and mold-out structure according to claim 1, characterized in that: The oil cylinder is fixedly connected to the slider core, the slider seat, the secondary slider seat, the slider ejector panel and the pressure strips on both sides of the slider ejector bottom plate through the oil cylinder fixing plate.

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