Injection mold demolding auxiliary device

Abstract

The utility model discloses an injection mold demoulding auxiliary device which comprises a base, an upper mold and a lower mold, a supporting structure is arranged behind the top of the base, an air cylinder is arranged at the bottom of the supporting structure, the upper mold is arranged at the bottom of the air cylinder, the lower mold is arranged in front of the top of the base, and an air tank is arranged on the inner surface of the lower mold. And a top cover is arranged at one end of the gas tank. The top cover is jacked up by inflating the gas tank, high-pressure gas runs out of the gas tank, and the leaked high-pressure gas jacks up cast plastic and spreads all around, so that the pre-separation effect of the plastic and the lower mold is achieved, and convenience is brought to demolding work. Air is inflated into the air inlet pipe and enters the four air tanks correspondingly, the top cover is jacked up through high air pressure, the spring is stretched accordingly, after demolding is completed, inflation is stopped, the top cover is withdrawn, normal use of the next time is guaranteed, the clamping blocks are taken out of the clamping grooves, the lower mold is separated from the base, and convenience is brought to cleaning and maintaining work of the interior of the lower mold.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to an injection mold demoulding auxiliary device. Background Art

[0002] The term mold plays an important role in the field of industrial manufacturing. It refers to various molds and tools used in the industrial production process to accurately produce the required product shape and size through various methods such as injection molding, blow molding, extrusion, die casting, forging, smelting and stamping. In short, the mold, this precision tool, is an indispensable element for manufacturing various molded objects.

[0003] This tool is usually composed of a series of complex parts, and each mold has its own unique design and construction to meet the needs of different product manufacturing. The function of the mold is to shape the raw material into the required shape and size through the change of physical state. Whether it is plastic, metal or other materials, the mold can achieve efficient transformation of materials with its precise design and manufacturing process.

[0004] In the patent "A new auxiliary demoulding structure" (publication number CN207088291U, hereinafter referred to as prior art 1), an auxiliary demoulding structure is disclosed. Prior art 1 uses hammering on the mold to make the mold vibrate before demoulding. Prior art 1 uses a telescopic cylinder and a rack to drive the hammer head and the gear so that the hammer head repeatedly hammers the mold. The hammering-type auxiliary demoulding in prior art 1 itself has certain damage to the mold, reducing the service life of the mold. Moreover, the hammering demoulding method in prior art 1 is not uniform when hammering the mold, and there is a possibility of damage to the molded parts during demoulding. Utility Model Content

[0005] The utility model aims to provide an injection mold demoulding auxiliary device to solve the problem that the existing device mentioned in the above background technology does not have a pre-separation function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold demolding auxiliary device, comprising a base, an upper mold and a lower mold, a support structure is provided at the rear of the top of the base, a cylinder is provided at the bottom of the support structure, an upper mold is provided at the bottom of the cylinder, a lower mold is provided at the front of the top of the base, the upper mold is located above the lower mold, a gas tank is provided on the inner surface of the lower mold, a top cover is provided at one end of the gas tank, and the top cover is movably connected to one end of the gas tank.

[0007] Preferably, one end of the gas tank is connected to a high-pressure gas charging pipe, the high-pressure gas charging pipe is located inside the lower mold, and one end of the high-pressure gas charging pipe is provided with an air inlet pipe, which extends to the outside of the lower mold.

[0008] Preferably, a plurality of mounting grooves are provided in the lower mold, the mounting grooves are fixedly connected to the gas tank, and the top cover is slidably connected inside the mounting grooves.

[0009] Preferably, a spring is provided inside the gas tank, one end of the spring is fixedly connected to the inside of the gas tank, and the other end of the spring is fixedly connected to one side of the top cover.

[0010] Preferably, two card slots are provided on the top of the base, and card blocks on two sides are fixedly connected to the bottom of the lower mold, and the card blocks are adapted to the card slots, and the card blocks are carded inside the card slots.

[0011] Preferably, an anti-sliding block is fixedly connected to the bottom of the base, and the number of the anti-sliding blocks is four.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By injection molding into the lower mold, start the cylinder to drive the upper mold to press down until the plastic is formed. After molding, retract the upper mold, and then inflate the gas tank to lift the top cover. The high-pressure gas escapes from the gas tank, and the leaked high-pressure gas lifts the cast plastic and spreads everywhere, thereby achieving the pre-separation effect of the plastic and the lower mold, thereby preventing the plastic from sticking to the mold during demolding, which brings convenience to the demolding work.

[0014] 2. By inflating the air into the air inlet pipe, the air enters into four air tanks respectively. The high air pressure lifts the top cover and the spring is stretched accordingly. After demoulding is completed, the inflation is stopped and the top cover is retracted to ensure normal use next time. By removing the card block from the card slot, the lower mold is separated from the base, which brings convenience to the cleaning and maintenance of the lower mold. The anti-sliding block is set to improve the stability during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the high-pressure inflation tube and the lower mold structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the split structure of the top cover and the gas tank of the utility model;

[0018] Figure 4 It is a schematic diagram of the disassembly structure of the lower mold and the base of the utility model.

[0019] In the figure: 1. upper mold; 2. lower mold; 3. base; 4. supporting structure; 5. cylinder; 6. gas tank; 7. top cover; 8. high-pressure inflation pipe; 9. air intake pipe; 10. mounting groove; 11. spring; 12. slot; 13. block; 14. anti-sliding block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 The utility model provides a technical solution of an injection mold demoulding auxiliary device: it includes a base 3 and an upper mold 1 and a lower mold 2. A support structure 4 (L-shaped) is provided at the rear of the top of the base 3, a cylinder 5 is provided at the bottom of the support structure 4, an upper mold 1 is provided at the bottom of the cylinder 5, a lower mold 2 is provided at the front of the top of the base 3, the upper mold 1 is located above the lower mold 2, a gas tank 6 is provided on the inner surface of the lower mold 2, a top cover 7 is provided at one end of the gas tank 6, and the top cover 7 is movably connected to one end of the gas tank 6.

[0022] One end of the gas tank 6 is connected to a high-pressure gas charging pipe 8, which is located inside the lower mold 2. One end of the high-pressure gas charging pipe 8 is provided with an air inlet pipe 9, which extends to the outside of the lower mold 2. Pre-separating the plastic by high-pressure gas can effectively reduce the resistance during demolding and reduce plastic damage or mold damage caused by demolding difficulties. At the same time, the flushing effect of the high-pressure gas can also remove impurities on the mold surface, improve the cleanliness of the mold, and create better conditions for the next injection molding operation.

[0023] See also Figure 1 or Figure 4 A plurality of mounting grooves 10 are provided in the lower mold 2 , the mounting grooves 10 are fixedly connected to the gas tank 6 , and the top cover 7 is slidably connected inside the mounting grooves 10 .

[0024] See also Figure 3 A spring 11 is provided inside the gas tank 6 , one end of the spring 11 is fixedly connected to the inside of the gas tank 6 , and the other end of the spring 11 is fixedly connected to one side of the top cover 7 .

[0025] See also Figure 4The top of the base 3 is provided with two card slots 12, and the bottom of the lower mold 2 is fixedly connected with card blocks 13 on both sides, which are adapted to the card slots 12 and are clamped inside the card slots 12. By providing the card slots and card blocks, the connection between the lower mold and the base is more stable, ensuring the stability during the injection molding process. At the same time, the design of the anti-sliding block also enhances the friction between the base and the ground, further improving the stability of the device.

[0026] Specifically, the bottom of the base 3 is fixedly connected with an anti-sliding block 14 , and the number of the anti-sliding blocks 14 is four.

[0027] In this embodiment, when the injection mold is used, the lower mold 2 is injected, the cylinder 5 is started, and the upper mold 1 is driven to press down until the plastic is formed. After forming, the upper mold 1 is retracted, and then the top cover 7 is lifted by inflating the gas tank 6. The high-pressure gas escapes from the gas tank 6, and the leaked high-pressure gas lifts the cast plastic and spreads everywhere, thereby achieving a pre-separation effect between the plastic and the lower mold 2, thereby preventing the plastic from sticking to the mold when demolding, which brings convenience to the demolding work. The demolding auxiliary device of the utility model has a simple structure and is easy to operate. Demolding can be achieved by inflating the air inlet pipe without additional complicated operations, thereby improving production efficiency. At the same time, each component in the device can be disassembled, which is convenient for maintenance and replacement, and reduces the cost of use.

[0028] See also Figure 1 , by charging the air into the air inlet pipe 9, the air enters the four air tanks 6 through the high-pressure air charging pipe 8, and the high air pressure lifts the top cover 7, and the spring 11 is stretched accordingly. After demoulding is completed, the air is stopped, the top cover 7 is retracted, and the spring 11 returns to its original state to ensure normal use next time. The demoulding auxiliary device removes the block 13 from the slot 12 to separate the lower mold 2 from the base 3, which facilitates the cleaning and maintenance work inside the lower mold 2. The anti-sliding block 14 is provided to improve the stability during injection molding.

[0029] The injection mold demoulding auxiliary device of the utility model also has good adaptability. Due to the simple structure of the device, it can be customized and modified according to different injection molding requirements to meet various complex production scenarios. In addition, the device can also be used in conjunction with other injection molding equipment to form a complete production line and improve overall production efficiency.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold demoulding auxiliary device, comprising a base (3) and an upper mold (1) and a lower mold (2), characterized in that: A support structure (4) is provided at the rear of the top of the base (3), a cylinder (5) is provided at the bottom of the support structure (4), the bottom of the cylinder (5) is connected to the upper mold (1), a lower mold (2) is provided at the front of the top of the base (3), the upper mold (1) is located above the lower mold (2), a gas tank (6) is provided on the inner surface of the lower mold (2), a top cover (7) is provided at one end of the gas tank (6), and the top cover (7) is movably connected to one end of the gas tank (6).

2. The injection mold demoulding auxiliary device according to claim 1, characterized in that: One end of the gas tank (6) is connected to a high-pressure gas charging pipe (8), and the high-pressure gas charging pipe (8) is located inside the lower mold (2). One end of the high-pressure gas charging pipe (8) is provided with an air intake pipe (9), and the air intake pipe (9) extends to the outside of the lower mold (2).

3. The injection mold demoulding auxiliary device according to claim 1, characterized in that: A plurality of mounting grooves (10) are provided in the lower mold (2); the mounting grooves (10) are fixedly connected to the gas tank (6); and the top cover (7) is slidably connected inside the mounting grooves (10).

4. The injection mold demoulding auxiliary device according to claim 1, characterized in that: A spring (11) is provided inside the gas tank (6), one end of the spring (11) is fixedly connected to the inside of the gas tank (6), and the other end of the spring (11) is fixedly connected to one side of the top cover (7).

5. The injection mold demoulding auxiliary device according to claim 1, characterized in that: The top of the base (3) is provided with two card slots (12), and the bottom of the lower mold (2) is fixedly connected with card blocks (13) on both sides, the card blocks (13) are adapted to the card slots (12), and the card blocks (13) are carded inside the card slots (12).

6. The injection mold demoulding auxiliary device according to claim 1, characterized in that: The bottom of the base (3) is fixedly connected with an anti-sliding block (14), and the number of the anti-sliding blocks (14) is four.

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