Automatic air bleeding device for flash bag of gas-assisted product

Abstract

The utility model relates to the technical field of injection molding, in particular to a flash bag automatic deflation device of gas-assisted products, which comprises an injection mold and an exhaust component, and the exhaust component comprises an oil inlet pipe, an oil cylinder, a slider, a nitrogen compressor, a communication component and a gas pipe. An injection mold is subjected to injection molding until a cavity of the injection mold is filled, then a nitrogen compressor starts to release nitrogen to enable the nitrogen to enter a gas pipe through a communicating pipe, a special gas needle is arranged on the gas pipe, the nitrogen is blown into a product, redundant molten materials in the product are blown out, then nitrogen supply continues to be kept, and the shape of the product is kept; and the air pressure is interrupted 20 seconds before the mold is opened, the oil cylinder drives the sliding block to retreat, the flash bag is cut, and the product is cooled and demolded after the gas in the product is discharged, so that the problems that the device is not provided with a deflating structure in the processing process of the existing product and the product is not swelled by cooling after the product is formed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an automatic air release device for overflow packages of gas-assisted products. Background Art

[0002] An injection molding machine is also known as an injection molding machine or an injection machine. It is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. With the wide use of various plastic products, the use of injection molding machines is becoming more and more common. With the progress of digital technology, it is imperative to reduce the cost and cycle of injection products and improve the qualification rate.

[0003] At present, the existing products do not have a gas release structure during the processing, and rely entirely on the cooling after the product is formed to ensure that the product does not bulge. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic air release device for overflow packages of gas-assisted products, aiming to solve the problem that the existing products do not have a gas release structure during the processing, and rely entirely on the cooling after the product is formed to ensure that the product does not bulge.

[0005] To achieve the above purpose, the utility model provides an automatic air release device for overflow packages of gas-assisted products, including an injection mold and an exhaust assembly. The exhaust assembly includes an oil inlet pipe, an oil cylinder, a slider, a nitrogen compressor, a connecting member, and an air pipe;

[0006] The slider is slidably connected to the injection mold and is located on one side of the injection mold. The output end of the oil cylinder is fixedly connected to the slider and is located on one side of the slider. The oil inlet pipe is connected to the oil pipe and is located on one side of the oil cylinder. The connecting member is communicated with the injection mold and is located on one side of the injection mold. The nitrogen compressor is connected to the connecting member and is located at one end of the connecting member away from the injection mold. The air pipe is arranged inside the injection mold.

[0007] Wherein, the connecting member includes a connecting pipe, a threaded post, and a threaded tube. The connecting pipe is communicated with the nitrogen compressor and is located on one side of the nitrogen compressor. The threaded post is communicated with the connecting pipe and is located on one side of the connecting pipe. The threaded tube is threadedly connected to the threaded post and is located outside the threaded post.

[0008] Wherein, the slider includes a block body and a triangular block. The block body is fixedly connected to the output end of the oil cylinder and is located on one side of the oil cylinder. The triangular block is fixedly connected to the block body and is located outside the block body.

[0009] Among them, the exhaust assembly further includes a mounting bracket, a cylinder, and an injection molding machine nozzle. The mounting bracket is disposed on the top of the injection mold. The cylinder is fixedly connected to the mounting bracket and is located on the top of the mounting bracket. The injection molding machine nozzle is fixedly connected to the output end of the cylinder and is located on one side of the cylinder.

[0010] Among them, the exhaust assembly further includes a camera and a display. The camera is fixedly connected to the mounting bracket and is located on one side of the mounting bracket. The display is fixedly connected to the mounting bracket and is located on the top of the mounting bracket.

[0011] For the automatic degassing device of the overflow package of the gas-assisted product of the present utility model, the injection mold is injected until the cavity of the injection mold is filled. Then, the nitrogen compressor starts to release nitrogen, and the nitrogen enters the air pipe through the connecting pipe. There is a special air needle on the air pipe to blow the nitrogen into the product and blow out the excess molten material in the product. Then, the nitrogen supply is continuously maintained to keep the shape of the product. The air pressure is interrupted 20 seconds before mold opening. The oil cylinder drives the slider to retract, cuts the overflow package, releases the gas inside the product, and then cools and demolds, solving the problem that the existing device does not have a degassing structure during the processing of the current product, and relying entirely on the cooling after the product is formed to ensure that the product does not bulge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0013] Figure 1 It is a structural diagram of the automatic degassing device of the overflow package of the gas-assisted product in the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic cross-sectional view of the automatic degassing device of the overflow package of the gas-assisted product in the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the use state of the automatic degassing device of the overflow package of the gas-assisted product in the first embodiment of the present utility model.

[0016] Figure 4 It is a schematic cross-sectional view of the automatic degassing device of the overflow package of the gas-assisted product in the second embodiment of the present utility model.

[0017] 101 - Injection mold, 102 - Exhaust component, 103 - Oil inlet pipe, 104 - Oil cylinder, 105 - Slide block, 106 - Nitrogen compressor, 107 - Connecting member, 108 - Air pipe, 109 - Connecting pipe, 110 - Threaded column, 111 - Threaded pipe, 112 - Block, 113 - Triangular block, 114 - Mounting bracket, 115 - Cylinder, 116 - Injection machine nozzle, 201 - Camera, 202 - Monitor. Detailed implementation manners

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0019] First embodiment

[0020] Please refer to Figures 1 to 3 , Figure 1 which is a structural diagram of the automatic deflation device for the overflow package of the gas-assisted product in the first embodiment of the present utility model, Figure 2 which is a sectional schematic view of the automatic deflation device for the overflow package of the gas-assisted product in the first embodiment of the present utility model, Figure 3 which is a schematic view of the usage state of the automatic deflation device for the overflow package of the gas-assisted product in the first embodiment of the present utility model.

[0021] The present utility model provides an automatic deflation device for the overflow package of the gas-assisted product: including an injection mold 101 and an exhaust component 102. The exhaust component 102 includes an oil inlet pipe 103, an oil cylinder 104, a slide block 105, a nitrogen compressor 106, a connecting member 107, an air pipe 108, a connecting pipe 109, a threaded column 110, a threaded pipe 111, a block 112, a triangular block 113, a mounting bracket 114, a cylinder 115 and an injection machine nozzle 116. By the foregoing solution, the problem that the existing products do not have a deflation structure during the processing process and rely entirely on the cooling after the product is formed to ensure that the product does not bulge is solved.

[0022] In this embodiment, the slider 105 is slidably connected to the injection mold 101 and is located on one side of the injection mold 101. The output end of the oil cylinder 104 is fixedly connected to the slider 105 and is located on one side of the slider 105. The oil inlet pipe 103 is connected to the oil pipe and is located on one side of the oil cylinder 104. The connecting member 107 is in communication with the injection mold 101 and is located on one side of the injection mold 101. The nitrogen compressor 106 is connected to the connecting member 107 and is located at one end of the connecting member 107 away from the injection mold 101. The air pipe 108 is disposed inside the injection mold 101. By injecting into the injection mold 101 until the cavity of the injection mold 101 is filled, then the nitrogen compressor 106 starts to release nitrogen so that the nitrogen enters the air pipe 108 through the connecting pipe 109. There are special air needles on the air pipe 108 to blow the nitrogen into the product and blow out the excess molten material in the product, and then continue to maintain the nitrogen supply to maintain the shape of the product. The air pressure is interrupted 20 seconds before mold opening. The oil cylinder 104 drives the slider 105 to retract, cuts the overflow package, releases the gas inside the product, and then cools and demolds, solving the problem that the existing device does not have a gas release structure during the processing of products, and relying entirely on the cooling after the product is formed to ensure that the product does not bulge.

[0023] Among them, the connecting member 107 includes a connecting pipe 109, a threaded post 110, and a threaded pipe 111. The connecting pipe 109 is in communication with the nitrogen compressor 106 and is located on one side of the nitrogen compressor 106. The threaded post 110 is in communication with the connecting pipe 109 and is located on one side of the connecting pipe 109. The threaded pipe 111 is threadedly connected to the threaded post 110 and is located outside the threaded post 110. By threadedly connecting the threaded post 110 and the threaded pipe 111, the device can be quickly disassembled. The connecting pipe 109 is made of a material with good toughness to increase the service life.

[0024] Secondly, the slider 105 includes a block body 112 and a triangular block 113. The block body 112 is fixedly connected to the output end of the oil cylinder 104 and is located on one side of the oil cylinder 104. The triangular block 113 is fixedly connected to the block body 112 and is located outside the block body 112. The block body 112 is used to block the feed port, and the overflow package wraps the block body 112. When the block body 112 is retracted, the triangular block 113 cuts the overflow package to release the gas.

[0025] Finally, the exhaust assembly 102 further includes a mounting bracket 114, a cylinder 115, and an injection molding machine nozzle 116. The mounting bracket 114 is disposed on the top of the injection mold 101. The cylinder 115 is fixedly connected to the mounting bracket 114 and is located on the top of the mounting bracket 114. The injection molding machine nozzle 116 is fixedly connected to the output end of the cylinder 115 and is located on one side of the cylinder 115. The mounting bracket 114 is used to mount the cylinder 115. The lifting of the injection molding machine nozzle 116 is controlled by the cylinder 115, so that the injection molding machine nozzle 116 is convenient for injection molding. The injection molding machine nozzle 116 is communicated with the injection molding machine through a pipeline.

[0026] When using the automatic degassing device for the overflow package of the gas-assisted product of the present utility model, the injection mold 101 is injected until the cavity of the injection mold 101 is filled. Then, the nitrogen compressor 106 starts to release nitrogen, and the nitrogen enters the air pipe 108 through the connecting pipe 109. There is a special air needle on the air pipe 108 to blow the nitrogen into the product and blow out the excess molten material in the product. Then, the nitrogen supply is continuously maintained to maintain the shape of the product. The air pressure is interrupted 20 seconds before mold opening. The oil cylinder 104 drives the slider 105 to retract, cuts the overflow package, releases the gas inside the product, and then cools and demolds, solving the problem that the existing products do not have a degassing structure during the processing process and rely entirely on the cooling after the product is formed to ensure that the product does not bulge.

[0027] Second Embodiment

[0028] Please refer to Figure 4 , Figure 4 , which is a schematic cross-sectional view of the automatic degassing device for the overflow package of the gas-assisted product of the second embodiment of the present utility model. On the basis of the first embodiment, the exhaust assembly 102 of the automatic degassing device for the overflow package of the gas-assisted product of the present utility model further includes a camera 201 and a display 202.

[0029] The camera 201 is fixedly connected to the mounting bracket 114 and is located on one side of the mounting bracket 114. The display 202 is fixedly connected to the mounting bracket 114 and is located on the top of the mounting bracket 114. The camera captures the processing image, and through the display 202, it can be magnified and displayed, so that the operation status of the device can be quickly observed.

[0030] The above-disclosed are only the preferred embodiments of the automatic degassing device for the overflow package of the gas-assisted product of the present utility model. Of course, the scope of the rights of the present utility model cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. Automatic air release device for overflow package of gas-assisted products, including an injection mold, characterized in that it further includes an exhaust component, and the exhaust component includes an oil inlet pipe, an oil cylinder, a slider, a nitrogen compressor, a connecting member, and an air pipe; the slider is slidably connected to the injection mold and is located on one side of the injection mold. The output end of the oil cylinder is fixedly connected to the slider and is located on one side of the slider. The oil inlet pipe is connected to the oil pipe and is located on one side of the oil cylinder. The connecting member is communicated with the injection mold and is located on one side of the injection mold. The nitrogen compressor is connected to the connecting member and is located at one end of the connecting member away from the injection mold. The air pipe is arranged inside the injection mold.

2. The automatic air release device for overflow package of gas-assisted products according to claim 1, characterized in that the connecting member includes a connecting pipe, a threaded post, and a threaded pipe. The connecting pipe is communicated with the nitrogen compressor and is located on one side of the nitrogen compressor. The threaded post is communicated with the connecting pipe and is located on one side of the connecting pipe. The threaded pipe is threadedly connected to the threaded post and is located outside the threaded post.

3. The automatic air release device for overflow package of gas-assisted products according to claim 1, characterized in that the slider includes a block body and a triangular block. The block body is fixedly connected to the output end of the oil cylinder and is located on one side of the oil cylinder. The triangular block is fixedly connected to the block body and is located outside the block body.

4. The automatic air release device for overflow package of gas-assisted products according to claim 1, characterized in that the exhaust component further includes a mounting bracket, a cylinder, and an injection machine nozzle. The mounting bracket is arranged on the top of the injection mold. The cylinder is fixedly connected to the mounting bracket and is located on the top of the mounting bracket. The injection machine nozzle is fixedly connected to the output end of the cylinder and is located on one side of the cylinder.

5. The automatic air release device for overflow package of gas-assisted products according to claim 4, characterized in that the exhaust component further includes a camera and a display. The camera is fixedly connected to the mounting bracket and is located on one side of the mounting bracket. The display is fixedly connected to the mounting bracket and is located on the top of the mounting bracket.

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