Demolding device of injection molding mold

Abstract

The utility model relates to the field of injection molding molds, and discloses a demolding device of an injection molding mold, which comprises a molding base, a male mold and a female mold which correspond to each other on two sides are arranged in the molding base, one end of the molding base is fixedly connected with a telescopic cylinder for driving the male mold to slide, a demolding cavity is arranged in the male mold, and a demolding slide block is slidably connected in the demolding cavity. Demolding push rods are fixedly connected to the four corners of the demolding sliding block, demolding holes matched with the demolding push rods are formed in the male mold, and an ejection mechanism matched with the demolding sliding block is arranged in the demolding cavity; one side of the demolding sliding block is fixedly connected with an air injection pump matched with the air injection cavity, a U-shaped spraying pipe is fixedly connected between the output end of the air injection pump and the air injection cavity, the end, away from the air injection pump, of the demolding push rod is provided with an air injection hole with the hole diameter smaller than the inner diameter of the air injection cavity, and a plugging block is slidably connected into the air injection hole. Compared with the prior art, the mold has the advantages that a formed part can be thoroughly demolded, adhesion is prevented, and the machining efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding mold technical field, specifically point to a kind of injection molding mold stripping device. BACKGROUND

[0002] Injection mold is a tool for producing plastic products, and is also a tool for giving plastic products complete structure and accurate size. Injection molding is a processing method used in mass production of some complex-shaped parts. Specifically, after heated and melted plastic is injected into a mold cavity by an injection molding machine at high pressure, the shaped product is obtained after cooling and solidification. Injection mold is widely used in various fields, including automobile, electronics, home appliances, toys, medical devices and other industries. It plays a crucial role in the production of various plastic products, such as plastic bottles, plastic trays, plastic toys, etc.

[0003] After injection molding, the injection mold needs to be stripped. However, the existing stripping device is usually a simple push rod structure. After the molded part is pushed out of the male mold, it may still be partially adhered to the stripping structure, greatly affecting the processing efficiency. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide a stripping device for injection molding mold, which can achieve complete stripping of the molded part, prevent adhesion and greatly improve the processing efficiency.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a stripping device for injection molding mold, comprising a molding base, the molding base is provided with a male mold and a female mold on both sides, one end of the molding base is fixedly connected with a telescopic cylinder for driving the male mold to slide, the male mold is provided with a stripping cavity, the stripping cavity is slidably connected with a stripping sliding block, the stripping sliding block is fixedly connected with a stripping push rod at four corners, the male mold is provided with a stripping hole matched with the stripping push rod, and the stripping cavity is provided with an ejection mechanism matched with the stripping sliding block; the stripping push rod is provided with a gas injection cavity, one side of the stripping sliding block is fixedly connected with a gas injection pump matched with the gas injection cavity, the output end of the gas injection pump is fixedly connected with a U-shaped injection pipe between the gas injection cavity, the end of the stripping push rod away from the gas injection pump is provided with a gas injection hole with a smaller diameter than the inner diameter of the gas injection cavity, the gas injection hole is slidably connected with a blocking block, and the stripping sliding block is provided with a switch mechanism for driving the blocking block to slide.

[0006] As an improvement, the stripping sliding block is fixedly connected with a stripping spring between one end and the inner wall of the stripping cavity, and the stripping spring is sleeved on the outer wall of the stripping push rod.

[0007] As improvement, the ejection mechanism comprises an adjusting column fixedly connected to the demolding slide away from the end of the female mold and extending out of the demolding cavity, a through hole is provided through the male mold and matched with the adjusting column, and the forming base is fixedly connected with a stop block at the end close to the male mold and matched with the adjusting column.

[0008] As improvement, the switch mechanism comprises a switch slide plate slidingly connected in the demolding cavity, the demolding slide is fixedly connected with an electric push rod driving the switch slide plate to slide on one side, the slide rods are fixedly connected to the outer wall of the switch slide plate at the other end, and the U-shaped nozzle is provided with a sliding hole matched with the slide rods on one side.

[0009] As improvement, the male mold is fixedly connected with a fixed cylinder at the end close to the adjusting column, and the fixed cylinder is fixedly connected with a fixed insertion block at the lower end, and the adjusting column is provided with a fixed insertion hole matched with the fixed insertion block.

[0010] As improvement, the bottom surface of the forming base is provided with a discharging hole.

[0011] Advantages:

[0012] Compared with the prior art, the ejection mechanism pushes the demolding push rod outwards along the through hole, the demolding of the formed part and the male mold is realized, the formed part is still adhered to the end of the demolding push rod, the switch mechanism is started, the blocking block is extended into the air jet cavity from the air jet hole, the end of the blocking block is separated from the formed part, the air jet hole is communicated with the air jet tank at this time, the air jet pump is started to jet air into the air jet cavity, the formed part is separated from the end of the demolding push rod through high-pressure gas, and rapid and complete demolding treatment is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is an explosion view of the demolding device of the injection molding mold.

[0014] Figure 2 is a structural schematic view of the demolding device of the injection molding mold.

[0015] Figure 3 is a sectional view of the demolding device of the injection molding mold.

[0016] Figure 4 is a structural schematic view of the ejection mechanism of the demolding device of the injection molding mold.

[0017] Figure 5 is a sectional view of the ejection mechanism of the demolding device of the injection molding mold.

[0018] Figure 6It is the switch mechanism structure schematic diagram of the demoulding device of the injection moulding mould.

[0019] As shown in the figure: 1, forming base; 2, female mould; 3, male mould; 4, telescopic cylinder; 5, demoulding cavity; 6, demoulding sliding block; 7, demoulding push rod; 8, adjusting column; 9, air jet pump; 10, U-shaped nozzle; 11, switch sliding plate; 12, sliding rod; 13, plugging block; 14, electric push rod; 15, air jet hole; 16, demoulding spring; 17, fixed cylinder; 18, fixed plug; 19, fixed socket; 20, air jet cavity; 21, discharge hole; 22, demoulding hole; 23, stop block. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] As Figures 1 to 5 shown, a demoulding device of injection moulding mould, including forming base 1, the forming base 1 inside is equipped with both sides corresponding male mould 3 and female mould 2, male mould 3 and female mould 2 are connected to form mould forming cavity, the bottom surface of forming base 1 is equipped with discharge hole 21, and the formed piece of demoulding leaks from discharge hole 21, one end of forming base 1 is fixedly connected with telescopic cylinder 4 for driving male mould 3 to slide, male mould 3 is equipped with demoulding cavity 5, demoulding cavity 5 is slidably connected with demoulding sliding block 6, and demoulding sliding block 6 is fixedly connected with demoulding push rod 7 at four corners, male mould 3 is equipped with demoulding hole 22 matched with demoulding push rod 7, demoulding cavity 5 is equipped with ejector mechanism matched with demoulding sliding block 6, and the ejector mechanism includes adjusting column 8 fixedly connected to the end of demoulding sliding block 6 away from female mould 2 and extending to the outside of demoulding cavity 5, the through hole matched with adjusting column 8 is arranged through male mould 3, the end of forming base 1 close to male mould 3 is fixedly connected with stop block 23 matched with adjusting column 8, demoulding spring 16 is fixedly connected between the end of demoulding sliding block 6 away from adjusting column 8 and the inner wall of demoulding cavity 5, and demoulding spring 16 is sleeved on the outer wall of demoulding push rod 7.

[0022] The male die 3 is fixedly connected with a fixed cylinder 17 near one end of an adjusting column 8, the lower end of the fixed cylinder 17 is fixedly connected with a fixed plug 18, the adjusting column 8 is provided with a fixed insertion hole 19 matched with the fixed plug 18, during the injection molding process, the fixed cylinder 17 is started to insert the fixed plug 18 into the fixed insertion hole 19 to limit and fix the adjusting column 8, preventing the demolding sliding block 6 from sliding during the injection molding process to affect the molding effect of the mold.

[0023] The demolding push rod 7 is provided with a jet cavity 20, one side of the demolding sliding block 6 is fixedly connected with a jet pump 9 matched with the jet cavity 20, the output end of the jet pump 9 is fixedly connected with a U-shaped jet pipe 10 between the jet cavity 20, one end of the demolding push rod 7 away from the jet pump 9 is provided with a jet hole 15 with a smaller hole diameter than the inner diameter of the jet cavity 20, the jet hole 15 is slidably connected with a blocking block 13, the demolding sliding block 6 is provided with a switch mechanism for driving the blocking block 13 to slide, the switch mechanism comprises a switch sliding plate 11 slidably connected in the demolding cavity 5, one side of the demolding sliding block 6 is fixedly connected with an electric push rod 14 for driving the switch sliding plate 11 to slide, the blocking block 13 extending to one end of the jet cavity 20 is fixedly connected with a slide rod 12, the other end of the slide rod 12 is fixedly connected to the outer wall of the switch sliding plate 11, one side of the U-shaped jet pipe 10 is provided with a sliding hole matched with the slide rod 12.

[0024] In specific use, the telescopic cylinder 4 is started to push the male die 3 to approach and connect with the female die 2, forming a molding cavity between the male die 3 and the female die 2, the female die 2 is injected into the molding cavity through the injection hole at one end, after injection molding, the telescopic cylinder 4 is started to pull the male die 3 to slide away from the female die 2, separating the molded part from the female die 2, the fixed cylinder 17 is started to pull the fixed plug 18 to extend out of the fixed insertion hole, making the adjusting column 8 contact one end of the stop block 23, as the male die 3 continues to slide, the adjusting column 8 is pushed to slide into the demolding cavity 5 under the extrusion of the stop block 23, the adjusting column 8 pushes the molded sliding block to slide along the inner wall of the demolding cavity 5, extruding the demolding spring 16 to compress and deform, at the same time, the demolding sliding block 6 pushes the demolding push rod 7 to slide along the demolding hole 22, separating the molded part from the male die 3, at this time, the molded part is still adhered to the end of the demolding push rod 7, the electric push rod 14 is started to push the switch sliding plate 11 to slide away from the demolding sliding block 6, the switch sliding plate 11 drives the slide rod 12 to pull the blocking block 13 to extend into the jet cavity 20 from the blocking hole, at this time, the jet hole 15 is connected with the jet cavity 20, the jet pump 9 is started to jet into the jet cavity 20, making the molded part further separate from the demolding push rod 7, realizing complete demolding.

[0025] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0026] It should be noted that, in this document, the term "only" is used to distinguish one entity or operation from another entity or operation, but does not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include" or "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0028] The utility model and its implementation mode have been described above, and such description is not restrictive, and the shown in the drawings is only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In general, if the ordinary skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, without creatively designing the similar structure mode and embodiments to the technical scheme, all should belong to the protection scope of the utility model.

Claims

1. A demolding device of an injection molding mold, comprising a molding base (1) in which a male mold (3) and a female mold (2) are arranged on both sides, and one end of the molding base (1) is fixedly connected with a telescopic cylinder (4) for driving the male mold (3) to slide, characterized in that: the male mold (3) is provided with a demolding cavity (5), the demolding cavity (5) is slidably connected with a demolding sliding block (6), the four corners of the demolding sliding block (6) are fixedly connected with a demolding push rod (7), the male mold (3) is provided with a demolding hole (22) matched with the demolding push rod (7), and the demolding cavity (5) is provided with an ejection mechanism matched with the demolding sliding block (6); the demolding push rod (7) is provided with a jet cavity (20), one side of the demolding sliding block (6) is fixedly connected with a jet pump (9) matched with the jet cavity (20), a U-shaped jet pipe (10) is fixedly connected between the output end of the jet pump (9) and the jet cavity (20), one end of the demolding push rod (7) away from the jet pump (9) is provided with a jet hole (15) with a smaller diameter than the inner diameter of the jet cavity (20), the jet hole (15) is slidably connected with a blocking block (13), and the demolding sliding block (6) is provided with a switch mechanism for driving the blocking block (13) to slide.

2. A demolding device for an injection molding mold according to claim 1, characterized in that: One end of the demolding sliding block (6) and the inner wall of the demolding cavity (5) are fixedly connected with a demolding spring (16), and the demolding spring (16) is sleeved on the outer wall of the demolding push rod (7).

3. A demolding device for an injection molding mold according to claim 1, characterized in that: The ejection mechanism comprises an adjusting column (8) fixedly connected to one end of the demolding sliding block (6) away from the female mold (2) and extending out of the demolding cavity (5), the male mold (3) is provided with a through hole matched with the adjusting column (8), and one end of the molding base (1) close to the male mold (3) is fixedly connected with a stop block (23) matched with the adjusting column (8).

4. A demolding device for an injection molding mold according to claim 1, characterized in that: The switch mechanism comprises a switch sliding plate (11) slidably connected in the demolding cavity (5), one side of the demolding sliding block (6) is fixedly connected with an electric push rod (14) for driving the switch sliding plate (11) to slide, and the blocking block (13) extending to one end of the jet cavity (20) is fixedly connected with a slide rod (12), the other end of the slide rod (12) is fixedly connected to the outer wall of the switch sliding plate (11), and one side of the U-shaped jet pipe (10) is provided with a slide hole matched with the slide rod (12).

5. A demolding device for an injection molding mold according to claim 3, characterized in that: One end of the male mold (3) close to the adjusting column (8) is fixedly connected with a fixed cylinder (17), the lower end of the fixed cylinder (17) is fixedly connected with a fixed plug (18), and the adjusting column (8) is provided with a fixed plug hole (19) matched with the fixed plug (18).

6. A demolding device for an injection molding mold according to claim 1, characterized in that: The bottom surface of the molding base (1) is provided with a discharge hole (21).

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