Electromagnetic valve control system with valve needle dismounting and mounting protection function

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an electromagnetic valve control system with a valve needle dismounting protection function. The electromagnetic valve control system with the valve needle dismounting and mounting protection function comprises a hot runner system body, and a splitter plate is arranged below the hot runner system body. Through the arrangement of the first positioning plate, the second positioning plate and the sealing groove, the electromagnetic valve body drives the valve needle body to retract into the nozzle, so that the valve needle body retracts into the hot runner, and at the moment, the two sets of micro air cylinders operate to drive the first positioning plate and the second positioning plate at the output end to stretch out respectively; and the first positioning plate and the second positioning plate extend out of the sealing groove in the inner wall of the flow dividing groove, are in contact with the outer wall of the valve needle main body after extending and are clamped with the valve needle main body, so that the valve needle main body is fixed and cannot be bent due to the influence of external force when being shrunk in a hot runner, and the valve needle main body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a solenoid valve control system with valve needle disassembly and assembly protection. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The hot runner ensures that the plastics in the runner and gate remain in a molten state by heating. The hot runner system is generally composed of a hot nozzle, a manifold, a temperature control box and accessories.

[0003] In the hot runner system of the existing injection molding machine, the valve needle on the solenoid valve therein is easily damaged by impact during the disassembly and assembly of the injection molding machine mold. Therefore, there is an urgent need for a solenoid valve control system with valve needle disassembly and assembly protection. Utility Model Content

[0004] The purpose of the utility model is to provide a solenoid valve control system with valve needle disassembly and assembly protection, so as to solve the problems that the valve needle on the solenoid valve in the hot runner system of the existing injection molding machine proposed in the above background technology is easily damaged by impact during the disassembly and assembly of the injection molding machine mold, and the solenoid valve is generally fixed in the hot runner system, which is not convenient for disassembly and maintenance.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a solenoid valve control system with valve needle disassembly and assembly protection, comprising a hot runner system body, a diverter plate is arranged below the hot runner system body, and a disassembly assembly is arranged on the inner side of the hot runner system body, a solenoid valve body is arranged inside the hot runner system body, a valve needle body is connected to the solenoid valve body, a protection structure is arranged on the inner side of the diverter plate, and a nozzle is connected to the bottom end of the diverter plate, and a diverter groove is opened on the inner side of the diverter plate.

[0006] The protection structure includes a mounting groove, a micro cylinder is mounted inside the mounting groove, a sealing groove is opened on the right side of the mounting groove, a first positioning plate is arranged at the output end of the micro cylinder, and a second positioning plate is arranged on the right side of the first positioning plate.

[0007] The disassembly component includes a running groove, a thread groove is provided at the top of the running groove, a thread block is clamped on the inner side of the thread groove, a clamping plate is clamped on the inner side of the thread block, a pulling groove is provided at the top of the clamping plate, and a magnetic suction groove is provided at the top of the hot runner system body.

[0008] Preferably, a main nozzle is arranged inside the hot runner system body, and the hot runner system body is fixedly connected to the manifold plate, and the number of the mounting groove, the first positioning plate and the second positioning plate is two groups.

[0009] Preferably, micro cylinders are installed at the ends of the first positioning plate and the second positioning plate, and the micro cylinders are fixedly installed in the mounting grooves.

[0010] Preferably, the first positioning plate and the second positioning plate are sealingly engaged with the sealing groove, and the first positioning plate and the second positioning plate are engaged with the valve needle body.

[0011] Preferably, the valve needle body penetrates to the inner side of the nozzle, and the thread block is movably connected to the thread groove through threads.

[0012] Preferably, a receiving groove matching the engaging plate is provided on the inner side of the threaded block, and the engaging plate and the threaded block are movably connected via a rotating shaft.

[0013] Preferably, the clamping plate is clamped and fixed to the threaded block and the hot runner system body through a magnetic suction groove and a receiving groove.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] First, the utility model sets the first positioning plate, the second positioning plate and the sealing groove, and the solenoid valve body drives the valve needle body to shrink into the nozzle, so that the valve needle body is retracted into the interior of the hot runner. At this time, the two groups of micro-cylinders are in operation, respectively driving the first positioning plate and the second positioning plate at the output end to extend, so that the first positioning plate and the second positioning plate extend from the sealing groove on the inner wall of the diverter groove, and after extending, they contact the outer wall of the valve needle body and engage the valve needle body, so that the valve needle body is fixed, so that when it shrinks in the hot runner, it will not be bent by external force, thereby achieving protection of the valve needle body.

[0016] Second, the utility model provides a threaded block, a threaded groove, a clamping plate and a magnetic suction groove. When the solenoid valve body needs to be disassembled for maintenance, the clamping plate is pulled through the lifting groove to rotate outward through the rotating shafts on both sides. When rotating, it is first pulled out from the magnetic suction groove on the top of the hot runner system body, and then pulled out from the receiving groove on the inner side of the threaded block, so that the opened clamping plate is vertically arranged with the threaded block, and then the threaded block is driven by the clamping plate to rotate and unscrew in the threaded groove. After unscrewing, the solenoid valve body can be pulled out from the hot runner system body for maintenance. After maintenance, the solenoid valve body is installed again, and the threaded block is clamped and fixed with the threaded groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the protection structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the first positioning plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly components of the utility model;

[0021] Figure 5 This is a schematic diagram of the thread block of the utility model;

[0022] Figure 6 It is a schematic diagram of the clamping plate of the utility model.

[0023] Among them: 1. Hot runner system body; 2. Diverter plate; 3. Main nozzle; 4. Solenoid valve body; 5. Valve needle body; 6. Nozzle; 7. Protection structure; 701. Installation groove; 702. Micro cylinder; 703. First positioning plate; 704. Sealing groove; 705. Second positioning plate; 8. Disassembly assembly; 801. Running groove; 802. Thread groove; 803. Thread block; 804. Clamping plate; 805. Lifting groove; 806. Magnetic suction groove; 9. Diverter groove. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-3A solenoid valve control system with valve needle disassembly protection includes a hot runner system body 1, a diverter plate 2 is arranged below the hot runner system body 1, and a disassembly component 8 is arranged inside the hot runner system body 1, a solenoid valve body 4 is arranged inside the hot runner system body 1, a valve needle body 5 is connected to the solenoid valve body 4, a protection structure 7 is arranged inside the diverter plate 2, and a nozzle 6 is connected to the bottom end of the diverter plate 2, a diverter groove 9 is opened inside the diverter plate 2, and the protection structure 7 includes an installation A micro cylinder 702 is installed inside the installation groove 701, and a sealing groove 704 is opened on the right side of the installation groove 701. A first positioning plate 703 is arranged at the output end of the micro cylinder 702, and a second positioning plate 705 is arranged on the right side of the first positioning plate 703. A main nozzle 3 is arranged on the inner side of the hot runner system body 1, and the hot runner system body 1 is fixedly connected to the diverter plate 2. The number of the installation groove 701, the first positioning plate 703 and the second positioning plate 705 is two groups, and the first positioning plate 703 is arranged on the right side of the hot runner system body 1. The ends of the positioning plate 703 and the second positioning plate 705 are both installed with a micro cylinder 702, and the micro cylinder 702 is fixedly installed with the mounting groove 701. The first positioning plate 703 and the second positioning plate 705 are sealed and connected with the sealing groove 704, and the first positioning plate 703 and the second positioning plate 705 are connected with the valve needle body 5. When the injection molding machine mold is maintained and disassembled, the solenoid valve body 4 drives the valve needle body 5 to shrink into the nozzle 6, so that the valve needle body 5 is retracted into the inside of the hot runner. At this time, the two groups are controlled. The micro cylinder 702 is in operation. After the two groups of micro cylinders 702 are in operation, they respectively drive the first positioning plate 703 and the second positioning plate 705 at the output end to extend, so that the first positioning plate 703 and the second positioning plate 705 extend from the sealing groove 704 on the inner wall of the diverter groove 9, and after extending, they contact the outer wall of the valve needle body 5 and engage the valve needle body 5, so that the valve needle body 5 is fixed, so that when it shrinks in the hot runner, it will not bend due to the influence of external force, thereby protecting the valve needle body 5.

[0026] See also Figure 4-6, a solenoid valve control system with valve needle disassembly and assembly protection, the disassembly component 8 includes a running groove 801, a threaded groove 802 is provided at the top of the running groove 801, a threaded block 803 is clamped on the inner side of the threaded groove 802, a clamping plate 804 is clamped on the inner side of the threaded block 803, a pulling groove 805 is provided on the top of the clamping plate 804, a magnetic suction groove 806 is provided on the top of the hot runner system body 1, the valve needle body 5 penetrates to the inner side of the nozzle 6, the threaded block 803 is movably connected to the threaded groove 802 through threads, a receiving groove matching the clamping plate 804 is provided on the inner side of the threaded block 803, and the clamping plate 804 is movably connected to the threaded block 803 through a rotating shaft, the clamping plate 804 and the threaded block 803, the hot runner The system body 1 is fixed by the magnetic suction groove 806 and the storage groove. When the solenoid valve body 4 needs to be disassembled and repaired, the clamping plate 804 is pulled outward through the lifting groove 805 through the rotating shafts on both sides. When rotating, it is first pulled out from the magnetic suction groove 806 on the top of the hot runner system body 1, and then pulled out from the storage groove on the inner side of the threaded block 803, so that the opened clamping plate 804 is vertically arranged with the threaded block 803, and then the threaded block 803 is driven by the clamping plate 804 to rotate and unscrew in the threaded groove 802. After unscrewing, the solenoid valve body 4 can be pulled out from the hot runner system body 1 for inspection. After inspection, the solenoid valve body 4 is installed again, and the threaded block 803 is clamped and fixed with the threaded groove 802.

[0027] When in use, when the injection molding machine mold is maintained and disassembled, the solenoid valve body 4 drives the valve needle body 5 to shrink into the nozzle 6, so that the valve needle body 5 is retracted into the hot runner. At this time, the two groups of micro cylinders 702 are controlled to operate. After the two groups of micro cylinders 702 operate, they respectively drive the first positioning plate 703 and the second positioning plate 705 at the output end to extend, so that the first positioning plate 703 and the second positioning plate 705 extend from the sealing groove 704 on the inner wall of the diverter groove 9, and after extending, they contact the outer wall of the valve needle body 5 and engage the valve needle body 5, so that the valve needle body 5 is fixed, so that when it shrinks in the hot runner, it will not be affected by external forces and bend, thereby achieving the valve needle body 5. For protection, when the solenoid valve body 4 needs to be disassembled for maintenance, the clamping plate 804 is pulled outward through the lifting groove 805 through the rotating shafts on both sides to rotate outward. When rotating, it is first pulled out from the magnetic suction groove 806 on the top of the hot runner system body 1, and then pulled out from the storage groove on the inner side of the threaded block 803, so that the opened clamping plate 804 is vertically arranged with the threaded block 803, and then the threaded block 803 is driven by the clamping plate 804 to rotate and unscrew in the threaded groove 802. After unscrewing, the solenoid valve body 4 can be pulled out from the hot runner system body 1 for maintenance. After maintenance, the solenoid valve body 4 is installed again, and the threaded block 803 is clamped and fixed with the threaded groove 802.

[0028] Although the 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 thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve control system with valve needle disassembly protection, comprising a hot runner system body (1), characterized in that: A manifold (2) is arranged below the hot runner system body (1), and a disassembly assembly (8) is arranged on the inner side of the hot runner system body (1); an electromagnetic valve body (4) is arranged inside the hot runner system body (1), a valve needle body (5) is connected to the electromagnetic valve body (4), a protective structure (7) is arranged on the inner side of the manifold (2), and a nozzle (6) is connected to the bottom end of the manifold (2); and a manifold groove (9) is opened on the inner side of the manifold (2); The protection structure (7) comprises a mounting groove (701), a micro cylinder (702) is mounted inside the mounting groove (701), a sealing groove (704) is provided on the right side of the mounting groove (701), a first positioning plate (703) is provided at the output end of the micro cylinder (702), and a second positioning plate (705) is provided on the right side of the first positioning plate (703); The disassembly component (8) includes a running groove (801), a thread groove (802) is provided at the top of the running groove (801), a thread block (803) is engaged on the inner side of the thread groove (802), a clamping plate (804) is engaged on the inner side of the thread block (803), a pulling groove (805) is provided at the top of the clamping plate (804), and a magnetic suction groove (806) is provided at the top of the hot runner system body (1).

2. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: A main nozzle (3) is arranged on the inner side of the hot runner system body (1), and the hot runner system body (1) is fixedly connected to the manifold plate (2), and the number of the mounting groove (701), the first positioning plate (703) and the second positioning plate (705) is two groups.

3. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: Micro cylinders (702) are installed at the ends of the first positioning plate (703) and the second positioning plate (705), and the micro cylinders (702) are fixedly installed in the installation groove (701).

4. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: The first positioning plate (703) and the second positioning plate (705) are sealingly engaged and connected with the sealing groove (704), and the first positioning plate (703) and the second positioning plate (705) are engaged and connected with the valve needle body (5).

5. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: The valve needle body (5) penetrates the inner side of the nozzle (6), and the thread block (803) is movably connected to the thread groove (802) via threads.

6. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: The inner side of the threaded block (803) is provided with a receiving groove matching the clamping plate (804), and the clamping plate (804) and the threaded block (803) are movably connected via a rotating shaft.

7. The solenoid valve control system with valve needle disassembly protection according to claim 1, characterized in that: The clamping plate (804) is clamped and fixed with the threaded block (803) and the hot runner system body (1) via the magnetic suction groove (806) and the receiving groove.

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