A foam pump press head demolding structure

Abstract

The utility model discloses a foaming pump press head demoulding structure relates to the field of plastic foaming pump production and processing. The structure is composed of 11 die plates of front mould and rear mould, matches with the auxiliary components such as inclined guide pillar, sliding block, cylinder, cylinder needle, buckle machine, adopts " push " type demoulding mode to replace traditional " pull " type operation. Through the step -by -step action of front -rear mould separation, product and water gap and rear mould separation, the stable demoulding of foaming pump press head is realized, the core pulling deformation problem caused by mould overheating, component slow cooling is effectively solved, the product defective rate is reduced, the raw material waste is reduced, and is applicable to the foaming pump press head demoulding procedure with convex structure.

Description

Technical Field

[0001] This utility model relates to the field of plastic injection molds, and in particular to a foam pump pusher demolding structure. Background Technology

[0002] In the production process of plastic foam pumps, the pump head component often has a raised structure designed for functional requirements, which brings difficulties to the demolding process after injection molding. In the existing technology, the demolding of such components mostly adopts a "pull" process, that is, pulling the product out of the mold by external force. However, due to the high temperature of the mold after injection molding, the component cannot cool and solidify quickly, and is prone to core pulling deformation under the action of pulling force. This leads to problems such as exceeding the product's dimensional accuracy and damage to its appearance. This not only results in a high product defect rate but also causes a large amount of raw material waste and increases production costs.

[0003] Therefore, there is an urgent need for a dedicated demolding structure for foam pump heads that can avoid core-pulling deformation and improve demolding stability. Utility Model Content

[0004] This invention aims to solve the problems of core deformation and high defect rate caused by the "pull" operation during the demolding process of existing foam pump heads. By designing a "push" demolding structure, the product can be smoothly separated from the mold, reducing the risk of deformation.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A foam pump ejector demolding structure includes a front mold, a rear mold, and auxiliary components. The front mold includes a panel and an A plate. The rear mold includes a push plate, a B plate, a support plate, a square iron, an ejector panel one, an ejector base plate one, an ejector panel two, an ejector base plate two, and a base plate. The auxiliary components include a slanted guide post, a front mold core, a slider, a rear mold core, a rear mold male, an ejector pin, an ejector sleeve, a locking mechanism, a locking mechanism unlocking block, and a locking mechanism slider. During demolding, the push plate of the rear mold moves downward to the base plate, and the slanted guide post drives the slider to move to the left to separate the slider from the product. Subsequently, the injection molding machine ejector pushes the ejector panel one and the ejector base plate one, which in turn drive the ejector sleeve. The locking mechanism, through the locking mechanism unlocking block and the locking mechanism slider, drives the ejector panel two, the ejector base plate two, and the ejector pin. The return pin drives the push plate upward, completing the demolding of the rear mold male and the ejection of the product.

[0007] As a further technical solution of this utility model: one end of the inclined guide post is fixed to the panel, and the other end is slidably connected to the slider.

[0008] As a further technical solution of this utility model: the ejector pin is nested inside the ejector sleeve, the ejector sleeve is connected to the ejector pin panel one, and the ejector pin is connected to the ejector pin panel two.

[0009] As a further technical solution of this utility model: the buckle unlocking block and the buckle slider are installed on the ejector plate two, and the buckle is adapted and matched with the buckle unlocking block and the buckle slider.

[0010] As a further technical solution of this utility model: the first ejector plate is fixedly connected to the first ejector base plate, and the second ejector plate is fixedly connected to the second ejector base plate.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] The "push" demolding method replaces the traditional "pull" operation, avoiding core-pulling deformation caused by pulling of the product under high temperature conditions;

[0013] By using a step-by-step demolding process (separation of front and rear molds → product ejection), the product is subjected to uniform stress, further reducing the risk of deformation.

[0014] Designed to accommodate the complex structure of foam pump heads, such as protrusions and teeth, it is highly adaptable and effectively improves the product qualification rate.

[0015] It has a stable structure, is easy to operate, and can reduce raw material waste and lower production costs. Attached Figure Description

[0016] Figure 1 : Overall structural diagram of this utility model;

[0017] Markings in the diagram: 1-Faceplate, 2-A Plate, 3-Push Plate, 4-B Plate, 5-Support Plate, 6-Square Iron, 7-Ejector Pin Faceplate 1, 8-Ejector Pin Base Plate 1, 9-Ejector Pin Faceplate 2, 10-Ejector Pin Base Plate 2, 11-Base Plate, 12-Angled Guide Pillar, 13-Front Mold Core, 14-Slider, 15-Product, 16-Gate, 17-Rear Mold Core, 18-Rear Mold Male, 19-Ejector Sleeve Pin, 20-Ejector Sleeve, 21-Ejector Pin, 22-Injection Molding Machine Ejector Pin, 23-Ejector Rod, 24-Mount Snap, 25-Mount Snap Unlock Block, 26-Mount Snap Slider. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1As shown, a foam pump pusher demolding structure includes a front mold, a rear mold, and auxiliary components; the front mold includes a panel 1 and an A-plate 2; the rear mold includes a push plate 3 and a B-plate 4. Plate 4, support plate 5, square iron 6, ejector plate 1 7, ejector base plate 1 8, ejector plate 2 9, ejector base plate 2 10, base plate 11; the auxiliary components include inclined guide post 12, front mold core 13, slider 14, rear mold core 17, rear mold male 18, ejector pin 19, ejector sleeve 20, fastener 24, fastener unlocking block 25, fastener slider 26; during demolding, the push plate 3 of the rear mold moves downward to the base plate 11, and the inclined guide post 12 drives the slider 14 to move to the left to separate the slider 14 from the product 15; subsequently, the injection molding machine ejector pin 22 pushes the ejector plate 1 7 and the ejector base plate 1 8 and drives the ejector sleeve 20, and the fastener 24 drives the ejector plate 2 9, the ejector base plate 2 10 and the ejector pin 19 through the fastener unlocking block 25 and the fastener slider 26, and the return pin drives the push plate 3 to move upward, after which the mold male 18 is demolded and the product 15 is ejected.

[0020] One end of the inclined guide post 12 is fixed to the panel 1, and the other end is slidably connected to the slider 14.

[0021] The ejector pin 19 is nested inside the ejector sleeve 20. The ejector sleeve 20 is connected to the ejector plate 7, and the ejector pin 19 is connected to the ejector plate 9.

[0022] The latch unlocking block 25 and the latch slider 26 are installed on the ejector plate 2 9, and the latch 24 is adapted to and cooperates with the latch unlocking block 25 and the latch slider 26.

[0023] The ejector plate 7 is fixedly connected to the ejector base plate 8, and the ejector plate 9 is fixedly connected to the ejector base plate 10.

[0024] The working principle is as follows:

[0025] (1) Structural assembly: The front mold panel 1 is fixedly connected to the A plate 2, and the front mold core 13 is embedded in the A plate 2; the rear mold push plate 3, B plate 4, support plate 5, square iron 6, and base plate 11 are connected in sequence; the ejector panel 1 7 is fixed to the ejector base plate 1 8, and the ejector panel 2 9 is fixed to the ejector base plate 2 10. The two sets of panels are respectively installed on the inside of the square iron 6; one end of the inclined guide post 12 is fixed to the A plate 2, and the other end is slidably engaged with the slider 14; the ejector sleeve 20 is connected to the ejector panel 1 7, and the ejector pin 19 is nested in the ejector sleeve 20 and connected to the ejector panel 2 9; the latch 24 is installed on the B plate 4, and the latch unlocking block 25 and the latch slider 26 are correspondingly installed on the ejector panel 2 9.

[0026] (2) Demolding process:

[0027] After injection molding is completed, the mold begins to demold. The push plate 3 of the rear mold and the bottom plate 11 move downward as a whole. The inclined guide post 12 drives the slider 14 to slide to the left, disengaging from the protrusion and tooth structure of the product 15.

[0028] The injection molding machine ejector pin 22 starts, pushing the ejector plate 7 and the ejector base plate 8, causing the ejector sleeve 20 to move upward; at the same time, the latch 24, under the action of the latch unlocking block 25 and the latch slider 26, drives the ejector plate 9, the ejector base plate 10 and the ejector pin 19 to move upward by pushing the push plate 3 25 mm, so that the rear mold male 18 is separated from the product 15.

[0029] Ejector plate 7 and ejector base plate 8 continue to drive ejector sleeve 20 and ejector pin 21 to rise, completely pushing product 15 out of rear mold core 17, realizing the separation of product 15 from sprue 16 and ejector pin 19, and completing demolding.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easy for those skilled in the art to understand.

Claims

1. A foam pump pusher demolding structure, characterized in that, The mold includes a front mold, a rear mold, and auxiliary components; the front mold includes a panel (1) and an A plate (2); the rear mold includes a push plate (3), a B plate (4), a support plate (5), a square iron (6), an ejector panel one (7), an ejector base plate one (8), an ejector panel two (9), an ejector base plate two (10), and a base plate (11); the auxiliary components include a slanted guide post (12), a front mold core (13), a slider (14), a rear mold core (17), a rear mold male (18), an ejector pin (19), an ejector sleeve (20), a locking mechanism (24), a locking mechanism unlocking block (25), and a locking mechanism slider (26); during demolding, the push plate (3) of the rear mold and the base plate (11) move downwards. The inclined guide post (12) moves the slider (14) to the left to separate the slider (14) from the product (15); then, the injection molding machine ejector pin (22) pushes the ejector plate one (7) and the ejector base plate one (8) and drives the ejector sleeve (20). The machine lock (24) drives the ejector plate two (9), the ejector base plate two (10) and the ejector sleeve pin (19) through the machine lock unlock block (25) and the machine lock slider (26). The return pin drives the push plate (3) to move upward, and after completion, the mold die (18) is demolded and the product (15) is ejected.

2. The demolding structure according to claim 1, characterized in that, One end of the inclined guide post (12) is fixed to the panel (1), and the other end is slidably connected to the slider (14).

3. The demolding structure according to claim 1, characterized in that, The ejector pin (19) is nested inside the ejector sleeve (20), the ejector sleeve (20) is connected to the ejector plate one (7), and the ejector pin (19) is connected to the ejector plate two (9).

4. The demolding structure according to claim 1, characterized in that, The latch unlocking block (25) and latch slider (26) are installed on the ejector plate two (9), and the latch (24) is adapted to and cooperates with the latch unlocking block (25) and latch slider (26).

5. The demolding structure according to claim 1, characterized in that, The first ejector panel (7) is fixedly connected to the first ejector base plate (8), and the second ejector panel (9) is fixedly connected to the second ejector base plate (10).

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