A split ball valve structure for a storage cylinder

Abstract

The utility model discloses a split ball valve structure of a material storage cylinder, which relates to the technical field of injection molding, including an injection barrel; a barrel flange is connected to the injection barrel, a plunger head is installed in the injection barrel; a melt flow channel device is connected to the barrel flange; a melt glue device is provided on the side of the melt flow channel device away from the barrel flange, the melt glue device includes a melt glue barrel precursor, a melt glue barrel, a screw and a driving element, the glue barrel precursor is connected to the injection barrel through a connecting flange, and the glue barrel precursor is connected to the melt glue barrel. The split flange and steel column ball in the utility model are detachable parts. If damaged or worn, they only need to be replaced separately without replacing the entire melt flow channel device. The design of the split ball valve usually includes the feature of quick disassembly, so that when glue leakage is found, the sealing element can be quickly disassembled and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a split ball valve structure of a material storage cylinder. Background Art

[0002] The split ball valve structure of the accumulator is mainly used in injection molding machines or similar plastic processing equipment. The split ball valve structure is used to accurately control the flow of molten plastic from the accumulator to the mold, ensuring that the plastic melt fills the mold at an appropriate speed and pressure during the injection molding process. The accumulator, as a part of the injection barrel, is responsible for storing molten plastic and providing a stable supply of melt for the continuous injection molding process. The split ball valve structure of the accumulator is an indispensable component in the injection molding process. It plays a key role in improving production efficiency, reducing costs and improving product quality by accurately controlling the flow and storage of molten plastic.

[0003] The traditional injection molding machine uses a storage cylinder to store materials. The sealing cylinder is used as a power source to drive the opening and closing of the sealing valve core in the storage channel. When the sealing cylinder drives the sealing valve core to open, the storage cylinder is used for material storage. After the material storage is completed, the sealing cylinder drives the sealing valve core to close to cut off the storage channel and prepare for subsequent injection.

[0004] After the storage cylinder has been working for a period of time, the sealing effect of the sealing valve core and the seals on the sealing valve core are affected by long-term movement friction and high temperature, and the sealing effect of the sealing valve core is weakened, and glue leakage will occur at the connection between the sealing element and the external sealing cylinder, resulting in a decrease in the molten plastic content, and the high-temperature molten material will cause the external heating device to burn out; at the same time, the outflowing molten material also increases the difficulty of machine maintenance, and these leaked molten materials will damage some components of the machine if they are not cleaned up in time, and frequent cleaning will cause the machine to stop, resulting in reduced production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a split ball valve structure for a material storage cylinder, so as to solve the technical problems in the prior art that after the material storage cylinder has been working for a period of time, the sealing effect of the sealing valve core is weakened, and glue leakage occurs at the connection between the sealing element and the external sealing oil cylinder, resulting in a reduction in the molten plastic content, and the high-temperature molten material may cause the external heating device to burn out; at the same time, the outflowing molten material also increases the difficulty of machine maintenance, resulting in reduced production efficiency.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A split ball valve structure for a storage cylinder includes an injection cylinder;

[0008] The injection barrel is connected to a barrel flange, a plunger head is installed in the injection barrel; the barrel flange is connected to a melt flow channel device;

[0009] A melt glue device is provided on the side of the melt flow channel device away from the barrel flange, and the melt glue device includes a melt glue barrel precursor, a melt glue barrel, a screw and a driving element. The glue barrel precursor is connected to the injection barrel through a connecting flange, and the glue barrel precursor is connected to the melt glue barrel. The screw is arranged in the melt glue barrel, and the driving element is arranged on the screw, and the driving element is a hydraulic motor.

[0010] As a further solution of the utility model: the molten material flow channel device includes a connecting flange, a split flange, a steel column ball and a valve cover, the connecting flange is connected to the barrel flange, the split flange is connected to the connecting flange, the steel column ball is located between the connecting flange and the split flange, and the valve cover covers the molten material flow channel device.

[0011] As a further solution of the utility model: the connecting flange and the barrel flange sealing connection part adopt a split connection.

[0012] As a further solution of the utility model: the split flange and the valve cover are made of hard alloy.

[0013] As a further solution of the utility model: the steel column ball is a spherical metal component.

[0014] As a further solution of the utility model: a melt pressure sensor is arranged in the barrel flange.

[0015] Beneficial effects of the utility model:

[0016] 1. The split flange and steel column ball in the utility model are detachable parts. If they are damaged or worn, they only need to be replaced separately without replacing the entire melt flow channel device. The design of the split ball valve usually includes the feature of quick disassembly, so that when the glue leakage is found, the sealing element can be quickly disassembled and replaced;

[0017] 2. The utility model installs a melt pressure sensor inside the barrel flange to monitor the pressure of the molten plastic in the injection barrel in real time. Real-time monitoring of the pressure of the molten plastic helps to accurately control the melt flow during the injection process, thereby improving the molding quality and consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

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

[0020] Figure 2 yes Figure 1 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. injection barrel; 2. barrel flange; 10. plunger head; 30. connecting flange; 31. split flange; 32. steel column ball; 33. valve cover; 40. rubber barrel precursor; 41. melt rubber barrel; 42. screw. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] like Figure 1-Figure 2 As shown, a split ball valve structure of a storage cylinder includes an injection barrel 1, a barrel flange 2 is connected to the injection barrel 1, a plunger head 10 is installed in the injection barrel 1, and the plunger head 10 can move forward and backward along the length direction of the injection barrel 1;

[0024] The barrel flange 2 is connected with a melt flow channel device, which includes a connecting flange 30, a split flange 31, a steel column ball 32 and a valve cover 33. The connecting flange 30 is connected to the barrel flange 2. The connecting flange 30 and the sealing connection part of the barrel flange 2 adopt a split connection, which avoids the processing of complex internal long holes on the barrel flange 2. The split connection can be used to process the connecting parts and the barrel flange 2 separately, thereby simplifying the processing process; the split flange 31 is connected to the connecting flange 30, the split flange 31 and the valve cover 33 are made of cemented carbide, the split flange 31 is a detachable part, the steel column ball 32 is located between the connecting flange 30 and the split flange 31, the steel column ball 32 is a spherical metal part, the steel column ball 32 is a detachable part, which is used to ensure the alignment and stability of the melt flow channel device and for the precise docking of the melt flow channel. The valve cover 33 covers the melt flow channel device to control the flow of molten plastic;

[0025] A melt glue device is provided on one side of the melt flow channel device away from the barrel flange 2, and the melt glue device includes a glue barrel precursor 40, a melt glue barrel 41, a screw 42 and a driving element. The glue barrel precursor 40 is connected to the injection barrel 1 through a connecting flange 30, and a melt glue barrel 41 is connected to the glue barrel precursor 40. The screw 42 is arranged in the melt glue barrel 41. The driving element is used to drive the screw 42 to rotate in the melt glue barrel 41 to melt plastic into glue. The driving element is arranged on the screw 42, and the driving element is a hydraulic motor.

[0026] A melt pressure sensor is disposed in the barrel flange 2 , and the melt pressure sensor is used to monitor the pressure of the plastic melt in the injection barrel 1 in real time.

[0027] The working principle of the utility model is as follows: the plastic raw material is put into the melt glue barrel 41, the melt glue barrel 41 is connected to the injection barrel 1 through the glue barrel precursor 40, the glue barrel precursor 40 plays a supporting and fixing role, the screw 42 is driven by the hydraulic motor arranged thereon, rotates and pushes the plastic raw material forward, so that the plastic raw material is heated and melted into molten plastic in the melt glue barrel 41, and the molten plastic enters the injection barrel 1 through the push of the screw 42, the front end of the injection barrel 1 is connected to the barrel flange 2, and the barrel flange 2 is equipped with a melt flow channel device for controlling the channel for the molten plastic to flow to the mold, and the melt flow channel device is The split flange 31 and the steel column ball 32 are a detachable component. Since the split flange 31 is a separate component, if it is damaged or worn, only this component needs to be replaced, and there is no need to replace the entire melt flow channel device, which significantly reduces the maintenance cost; the steel column ball 32 is located between the connecting flange 30 and the split flange 31. As a spherical metal component, it ensures the precise docking and alignment of the melt flow channel. The valve cover 33 covers the melt flow channel device and can control the flow of the molten plastic by opening or closing. A melt pressure sensor is installed inside the barrel flange 2 to monitor the pressure of the molten plastic in the injection barrel 1 in real time;

[0028] In this device, the barrel flange 2 and the valve cover 33 are made into split type, and the local characteristic of the valve cover 33 is that the flow is divided into ten guide grooves, which is convenient for material unloading. The sealing glue is changed to a steel ball, and the steel ball can be offset and rotated. The contact surface is different each time, which can increase the service life; the connecting flange 30 and the split flange 31 are made into split type, and the split flange 31 and the valve cover 33 are made of hard alloy. The connecting flange 30 and the barrel flange 2 are made of conventional tough materials to ensure the strength and toughness of the connection and reduce the probability of fracture. The sealing glue connection part of the connecting flange 30 and the barrel flange 2 is split, which reduces the processing difficulty and reduces the growth;

[0029] This split ball valve structure can achieve precise control of the flow of molten plastic, while simplifying the processing and maintenance process and improving the reliability and efficiency of the entire system.

[0030] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A split ball valve structure for a storage cylinder, comprising an injection cylinder (1); characterized in that: The injection barrel (1) is connected to a barrel flange (2), and a plunger head (10) is installed in the injection barrel (1); the barrel flange (2) is connected to a melt flow channel device; A melt glue device is provided on the side of the melt flow channel device away from the barrel flange (2), and the melt glue device includes a melt glue barrel precursor (40), a melt glue barrel (41), a screw (42) and a driving element. The glue barrel precursor (40) is connected to the injection barrel (1) through a connecting flange (30), the glue barrel precursor (40) is connected to the melt glue barrel (41), the screw (42) is arranged in the melt glue barrel (41), and the driving element is arranged on the screw (42), and the driving element is a hydraulic motor.

2. A split ball valve structure for a storage cylinder according to claim 1, characterized in that: The molten material flow channel device comprises a connecting flange (30), a split flange (31), a steel column ball (32) and a valve cover (33); the connecting flange (30) is connected to the barrel flange (2); the split flange (31) is connected to the connecting flange (30); the steel column ball (32) is located between the connecting flange (30) and the split flange (31); and the valve cover (33) covers the molten material flow channel device.

3. The split ball valve structure of the storage cylinder according to claim 2 is characterized in that: The sealing connection part of the connecting flange (30) and the barrel flange (2) is connected in a split type.

4. The split ball valve structure of a storage cylinder according to claim 2, characterized in that: The split flange (31) and the valve cover (33) are made of hard alloy.

5. The split ball valve structure of a storage cylinder according to claim 2, characterized in that: The steel column ball (32) is a spherical metal component.

6. The split ball valve structure of a storage cylinder according to claim 1, characterized in that: A melt pressure sensor is arranged inside the barrel flange (2).

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