A molding die for a liquid medium storage container

Abstract

The utility model discloses a kind of forming mould of liquid culture medium storage container, the utility model relates to blow mould technical field.This liquid culture medium storage container's forming mould includes bottom plate, the top of bottom plate is provided with forming mechanism: limiting assembly, including fixedly installed on the top of bottom plate fixed mould, the inside fixed mounting of fixed mould has with shape pipeline, the lower side of fixed mould is embeddedly installed exhaust pipe, the bottom fixed mounting of exhaust pipe has connecting pipe, one end fixed mounting of connecting pipe has air pump, store cooling medium by water tank, water pump is extracted and is sent to with shape pipeline by inlet pipe, after flowing, from reflux pipe backflow water tank;Fan generates airflow through fin, fin absorbs heat and dissipates to air to realize cooling circulation, temperature sensor real-time monitoring, can be required to stabilize cooling medium temperature, avoid due to temperature improper and make product produce internal stress, adapt to different bottle embryo material cooling demand.

Description

Technical Field

[0001] This utility model relates to the field of blow molding technology, specifically to a molding die for a liquid culture medium storage container. Background Technology

[0002] Blow molding is an important plastic processing and molding technology, widely used in the production of various hollow plastic products. Its core principle is to use gas pressure to expand a heated and softened plastic preform and fit it against the inner wall of a mold. After cooling and solidification, the desired product shape is obtained.

[0003] The existing utility model patent with publication number CN206999597U discloses a blow molding die. The blow molding die includes a left mold, a right mold, and a nozzle with an air inlet channel. The left and right molds, when closed, form a mold cavity. The mold cavity, from top to bottom, includes a bottle mouth, an upper bottle cavity, and a lower bottle cavity. The diameter at the connection between the upper and lower bottle cavities is smaller than the diameter at other locations in the upper and lower bottle cavities. Both the left and right molds have upper and lower exhaust channels. The upper exhaust channel communicates with the upper end of the upper bottle cavity, and the lower exhaust channel communicates with the lower end of the lower bottle cavity. The diameter of the upper and lower exhaust channels is less than 100 mm. The nozzle extends into the bottle mouth and seals the mold cavity. The left mold has a positioning rod, and the right mold has a positioning hole that mates with the positioning rod. The nozzle has a cooling channel.

[0004] The products produced by the blow molding mold of this utility model have a high qualification rate.

[0005] The aforementioned blow molding mold rapidly reduces the temperature of the plastic by circulating cooling water into the mold through cooling channels. However, it cannot adjust the temperature of the cooling medium according to the material, which may cause internal stress in the product due to the excessively low temperature of the cooling medium. At the same time, the blow molding mold exhausts air through the exhaust channel. During the blow molding process, if a certain part of the preform comes into contact with the exhaust channel, it will cause bubbles to appear on the surface of the product. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a molding die for a liquid culture medium storage container, which solves the problems of easy bubble formation on the product surface and the inability to control the temperature of the cooling medium according to the preform material.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A molding die for a liquid culture medium storage container includes a base plate, and a molding mechanism is disposed above the base plate.

[0008] The limiting assembly includes a fixed mold fixedly installed above the base plate, a conformal pipe fixedly installed inside the fixed mold, an exhaust pipe fitted below the fixed mold, a connecting pipe fixedly installed at the bottom of the exhaust pipe, and an air pump fixedly installed at one end of the connecting pipe. The limiting assembly also includes a limiting frame fixedly installed above the base plate, a cylinder fixedly installed at the center of the limiting frame, and a moving mold fixedly installed at the movable end of the cylinder.

[0009] The cooling assembly, located above the base plate and connected to the conformal piping, is used to reduce the temperature of the container after it has been formed.

[0010] Preferably, the cooling assembly includes a water tank fixedly installed above the base plate, a temperature sensor inserted into one side of the water tank, fins fixedly installed inside the water tank, a top cover fixedly installed on the top of the water tank, fans fixedly installed on both sides of the top cover, a water pump connected to one side of the water tank, an inlet pipe fixedly installed at the outlet of the water pump, and return pipes fixedly installed on both sides of the water tank.

[0011] Preferably, the joint between the fixed mold and the moving mold is provided with a chamfered structure, the outer side of the exhaust pipe is provided with three annular protrusions, the top end of the exhaust pipe is located between the fixed mold and the moving mold, and the bottom end of the exhaust pipe is connected to the cavity of the connecting pipe.

[0012] Preferably, the end of the connecting pipe is connected to the air inlet of the air pump, and a columnar structure that is slidably connected to the limiting frame is provided on the rear side of the fixed mold. The fixed mold is movably connected to the limiting frame through a cylinder.

[0013] Preferably, the water pump's inlet is connected to the water tank, the end of the inlet pipe is connected to one end of the conformal pipe inside the moving mold and the fixed mold respectively, and the end of the return pipe is connected to the other end of the conformal pipe inside the moving mold and the fixed mold respectively.

[0014] Preferably, the fans on both sides of the top cover have the same airflow direction, the bottom of the fins is located inside the water tank, and the top is located between the fans on both sides of the top cover.

[0015] Beneficial effects

[0016] This invention provides a molding die for a liquid culture medium storage container. Compared with the prior art, it has the following advantages:

[0017] (1) The molding mold of the liquid culture medium storage container is designed with a chamfered structure at the joint between the fixed mold and the moving mold to guide the air in the mold cavity into the exhaust pipe. The air pump is used to extract the air between the mold cavity and the preform through the connecting pipe and the exhaust pipe before blow molding to form a low pressure. During blow molding, the air is rapidly exhausted at the same time to avoid the formation of air bubbles due to air residue in the molded parts and to optimize the appearance quality of the product.

[0018] (2) The molding mold of the liquid culture medium storage container stores the cooling medium through the water tank. The water pump draws the medium and sends it to the conformal pipe through the inlet pipe. After flowing through the pipe, it returns to the water tank through the return pipe. The fan generates airflow through the fins. The fins absorb heat and dissipate it to the air to achieve cooling circulation. The temperature sensor monitors the temperature in real time. The temperature of the cooling medium can be stabilized according to the requirements to avoid internal stress caused by improper temperature. It is suitable for cooling requirements of different preform materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the conformal pipe installation structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the moving mold installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the water tank and the conformal pipe of this utility model;

[0023] In the diagram: 1. Base plate; 2. Molding mechanism; 21. Limiting component; 211. Fixed mold; 212. Conformal pipe; 213. Exhaust pipe; 214. Connecting pipe; 215. Air pump; 216. Limiting frame; 217. Cylinder; 218. Moving mold; 22. Cooling component; 221. Water tank; 222. Temperature sensor; 223. Fins; 224. Top cover; 225. Fan; 226. Water pump; 227. Water inlet pipe; 228. Return pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a molding die for a liquid culture medium storage container, including a base plate 1, and a molding mechanism 2 disposed above the base plate 1.

[0026] The limiting component 21 includes a fixed mold 211 fixedly installed above the base plate 1. A conformal pipe 212 is fixedly installed inside the fixed mold 211. An exhaust pipe 213 is fitted and installed below the fixed mold 211. A connecting pipe 214 is fixedly installed at the bottom of the exhaust pipe 213. An air pump 215 is fixedly installed at one end of the connecting pipe 214. The limiting component 21 also includes a limiting frame 216 fixedly installed above the base plate 1. A cylinder 217 is fixedly installed at the center of the limiting frame 216. A moving mold 218 is fixedly installed at the movable end of the cylinder 217. A chamfered structure is provided at the joint between the fixed mold 211 and the moving mold 218. Three annular protrusions are provided on the outer side of the exhaust pipe 213. The top of the exhaust pipe 213 is located between the fixed mold 211 and the moving mold 218. The bottom of the exhaust pipe 213 is connected to the cavity of the connecting pipe 214. The end of the connecting pipe 214 is connected to the air inlet of the air pump 215. A columnar structure is provided on the rear side of the fixed mold 211, which is slidably connected to the limit frame 216. The moving mold 218 is movably connected to the limit frame 216 through the cylinder 217.

[0027] Specifically, the base plate 1 restricts the position of the molding mechanism 2, and the cylinder 217 drives the moving mold 218 to move, thereby realizing the fitting and separation of the fixed mold 211 and the moving mold 218. When the fixed mold 211 and the moving mold 218 are fitted together, the chamfered structure at their joint can guide the air inside the mold cavity into the exhaust pipe 213. Before blow molding, the air pump 215 extracts the air in the space between the mold cavity and the preform through the connecting pipe 214 and the exhaust pipe 213, so that the space forms a low-pressure state. During the blow molding process, the air pump 215 runs synchronously, which can quickly discharge the air inside the mold cavity and avoid the formation of air bubbles in the molded part.

[0028] A cooling assembly 22 is disposed above the base plate 1 and connected to the conformal pipe 212 to reduce the temperature of the container after molding. The cooling assembly 22 includes a water tank 221 fixedly installed above the base plate 1. A temperature sensor 222 is installed through one side of the water tank 221. Fins 223 are fixedly installed inside the water tank 221. A top cover 224 is fixedly installed on the top of the water tank 221. Fans 225 are fixedly installed on both sides of the top cover 224. A water pump 226 is connected to one side of the water tank 221. An inlet pipe 227 is fixedly installed at the outlet of the water pump 226. Return pipes 228 are fixedly installed on both sides of the water tank 221. The water inlet of the water pump 226 is connected to the water tank 221. The end of the water inlet pipe 227 is connected to one end of the conformal pipe 212 inside the moving mold 218 and the fixed mold 211, respectively. The end of the return pipe 228 is connected to the other end of the conformal pipe 212 inside the moving mold 218 and the fixed mold 211, respectively. The air outlet direction of the fans 225 on both sides of the top cover 224 is the same. The bottom of the fin 223 is located inside the water tank 221, and the top is located between the fans 225 on both sides of the top cover 224.

[0029] Specifically, the water tank 221 can store a certain amount of cooling medium. The water pump 226 draws out the cooling medium from the water tank 221 and delivers it to the conformal pipe 212 through the inlet pipe 227. After flowing through the conformal pipe 212, the cooling medium flows back to the water tank 221 from the other end through the return pipe 228. The airflow generated by the fan 225 flows through the fins 223, which absorb the heat of the cooling medium and dissipate it into the air, realizing the cooling medium cooling circulation. The temperature sensor 222 can monitor the temperature of the cooling medium in real time to ensure stable cooling effect.

[0030] Specifically, the air pump 215 is model TN41, the cylinder 217 is model CDUJB6-8DM, the temperature sensor 222 is model QAE2164.015, and the water pump 226 is model NBZ5-G100F. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] During operation, manual or mechanical devices precisely place and fit the preform into the mold cavity inside the fixed mold 211, preparing for blow molding. The cylinder 217 is activated, and its movable end pushes the moving mold 218 towards the fixed mold 211 until the fixed mold 211 and moving mold 218 are fully fitted, forming a closed mold cavity. At this point, the chamfered structure at the joint assists in positioning and ensures the mold cavity's airtightness. The air pump 215 is then activated, and through the connecting pipe 214 and the exhaust pipe 213, it extracts the contents of the fixed mold 211 and moving mold 218. The air in the mold cavity and the gap between the mold cavity and the preform creates a low-pressure environment in this area, preventing residual air from affecting product quality during blow molding. The external blow molding equipment introduces high-pressure gas (usually compressed air) into the mold cavity. The high-pressure gas pushes the heated and softened preform to expand, making it fit tightly against the inner wall of the mold cavity and shaping it into the form of a liquid culture medium storage container. During the blow molding process, the air pump 215 runs continuously to promptly expel the air squeezed out of the mold cavity due to the expansion of the preform, further preventing air bubbles from forming on the product surface. When the cooling assembly 22 is activated, the water pump 226 draws the cooling medium (usually water) from the water tank 221 and delivers it through the inlet pipe 227 to the conformal pipes 212 inside the fixed mold 211 and the moving mold 218. The cooling medium flows within the conformal pipes 212, absorbing heat from the mold and forming container, and then flows back to the water tank 221 through the return pipe 228. Simultaneously, the fan 225 operates to generate airflow, which blows across the fins 223 inside the water tank 221. The fins 223 dissipate the heat of the cooling medium into the air, achieving cooling. The cooling medium is circulated and cooled to ensure that the container is quickly shaped at a suitable temperature, avoiding internal stress caused by uneven cooling. Temperature sensor 222 monitors the temperature of the cooling medium in water tank 221 in real time and feeds back the data to adjust the operating status of fan 225, water pump 226, etc., to ensure stable cooling effect. After cooling is completed, cylinder 217 reverses and pulls moving mold 218 to separate from fixed mold 211 (mold opening). After mold opening, the formed liquid culture medium storage container is taken out manually or mechanically, completing one production cycle.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for a liquid culture medium storage container, comprising a base plate (1), characterized in that: A forming mechanism (2) is provided above the base plate (1): The limiting component (21) includes a fixed mold (211) fixedly installed above the base plate (1), a conformal pipe (212) fixedly installed inside the fixed mold (211), an exhaust pipe (213) fitted below the fixed mold (211), a connecting pipe (214) fixedly installed at the bottom of the exhaust pipe (213), an air pump (215) fixedly installed at one end of the connecting pipe (214), and the limiting component (21) also includes a limiting frame (216) fixedly installed above the base plate (1), a cylinder (217) fixedly installed at the center of the limiting frame (216), and a moving mold (218) fixedly installed at the movable end of the cylinder (217). A cooling assembly (22) is disposed above the base plate (1) and connected to a conformal pipe (212) for reducing the temperature of the container after it is formed.

2. The molding die for a liquid culture medium storage container according to claim 1, characterized in that: The cooling assembly (22) includes a water tank (221) fixedly installed above the base plate (1), a temperature sensor (222) is installed on one side of the water tank (221), fins (223) are fixedly installed inside the water tank (221), a top cover (224) is fixedly installed on the top of the water tank (221), fans (225) are fixedly installed on both sides of the top cover (224), a water pump (226) is connected to one side of the water tank (221), an inlet pipe (227) is fixedly installed at the outlet of the water pump (226), and return pipes (228) are fixedly installed on both sides of the water tank (221).

3. The molding die for a liquid culture medium storage container according to claim 1, characterized in that: The fixed mold (211) and the moving mold (218) are provided with a chamfered structure at the joint. The exhaust pipe (213) has three annular protrusions on its outer side. The top of the exhaust pipe (213) is located between the fixed mold (211) and the moving mold (218). The bottom of the exhaust pipe (213) is connected to the cavity of the connecting pipe (214).

4. The molding die for a liquid culture medium storage container according to claim 1, characterized in that: The end of the connecting pipe (214) is connected to the air inlet of the air pump (215). The rear side of the fixed mold (211) is provided with a columnar structure that is slidably connected to the limiting frame (216). The fixed mold (211) is movably connected to the limiting frame (216) through the cylinder (217).

5. The molding die for a liquid culture medium storage container according to claim 2, characterized in that: The water pump (226) has its inlet end connected to the water tank (221), and the end of the water inlet pipe (227) is connected to one end of the conformal pipe (212) inside the moving mold (218) and the fixed mold (211), respectively. The end of the return pipe (228) is connected to the other end of the conformal pipe (212) inside the moving mold (218) and the fixed mold (211), respectively.

6. The molding die for a liquid culture medium storage container according to claim 2, characterized in that: The air outlet directions of the fans (225) on both sides of the top cover (224) are the same, and the bottom of the fin (223) is located inside the water tank (221), while the top is located between the fans (225) on both sides of the top cover (224).

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