Combined gate sequence valve plate

Abstract

The utility model relates to a combined gate sequence valve plate, which relates to the field of injection molding machine parts, and is characterized in that at least one valve plate assembly is arranged on one side of a mounting plate, and the valve plate assembly is fixedly connected with the mounting plate through a fastener. The valve plate has the effects that the utilization rate of valve plate materials is increased, and material waste is reduced.

Description

Technical Field

[0001] The present application relates to the field of injection molding machine components, and particularly to a combined gate sequence valve plate. Background Art

[0002] A valve plate refers to a plate body for installing valve bodies such as check valves, directional control valves, and pressure reducing valves.

[0003] In the prior art, for example, in the needle valve gate type hot runner injection mold with a gate needle valve action device disclosed in CN104400967A, in order to eliminate weld lines and improve the quality of plastic products, several to dozens of gate sequence valves are usually configured on an injection molding machine. The gate sequence valves can be classified into types such as check valves, directional control valves, and pressure reducing valves according to their functions. The gate sequence valves are generally installed on the valve plate, and the valve plate is fixed on the injection molding machine to fix the gate sequence valves.

[0004] Existing valve plates generally adopt an integral design. When it is necessary to change the specifications of the valve plate, the entire valve plate needs to be replaced, which easily leads to waste of materials. Utility Model Content

[0005] In order to improve the utilization rate of valve plate materials and reduce the waste of materials, the present application provides a combined gate sequence valve plate.

[0006] A combined gate sequence valve plate includes a mounting plate, and at least one valve plate assembly is arranged on one side of the mounting plate. The valve plate assembly is fixedly connected to the mounting plate through fasteners.

[0007] By adopting the above technical solution, the valve plate assembly is fixed on the injection molding machine through the mounting plate. When it is necessary to replace the valve plate, the specifications of the valve plate can be changed by replacing the valve plate assembly, thereby reducing the waste of materials of the mounting plate and improving the utilization rate of valve plate materials.

[0008] Preferably, the valve plate assembly is provided with mounting grooves for installing a directional control valve or a check valve.

[0009] By adopting the above technical solution, the number of directional control valves and check valves installed on the valve plate is controlled by changing the number of mounting grooves on the valve plate assembly, so that a valve plate assembly with different numbers of mounting grooves can be selected according to the actual situation, improving the applicability of the valve plate.

[0010] Preferably, the valve plate assemblies are symmetrically arranged on one side of the mounting plate and the lengths of adjacent valve plate assemblies are different.

[0011] By adopting the above technical solution, different numbers of mounting grooves are provided on valve plate assemblies of different lengths. By combining valve plate assemblies of different lengths, the number of mounting grooves closest to the number of sequence valves to be installed is combined, thereby improving the material utilization rate of the valve plate.

[0012] Preferably, the valve plate assemblies are symmetrically arranged on one side of the mounting plate and adjacent valve plate assemblies have the same length.

[0013] By adopting the above technical solution, valve plate assemblies of different lengths occupy different mounting spaces. When two valve plate assemblies of different lengths are installed, a space for installing the longer valve plate assembly needs to be reserved. By combining valve plate assemblies of the same length, the number of mounting grooves closest to the number of sequence valves to be installed is combined, thereby improving the space utilization rate of the valve plate.

[0014] Preferably, a connecting plate for connecting adjacent valve plate assemblies is provided at one end of the valve plate assembly away from the mounting plate.

[0015] By adopting the above technical solution, one end of the valve plate assembly is fixed on the mounting plate, and the other end of the valve plate assembly is connected through the connecting plate, thereby reducing the situation of the valve plate assembly falling off the mounting plate and improving the installation stability of the valve plate assembly.

[0016] Preferably, a stop valve is provided at one end of the valve plate assembly away from the mounting plate.

[0017] By adopting the above technical solution, the flow channel for the injection molding raw material provided on the valve plate assembly is isolated from the outside through the stop valve, thereby improving the sealing performance of the flow channel, and the stop valve is opened to relieve pressure when the pressure in the flow channel is too high, thereby improving the use stability of the valve body.

[0018] Preferably, a pressure reducing valve is provided on the connecting plate, and a check valve is provided on the connecting plate.

[0019] By adopting the above technical solution, the pressure inside the connecting plate is balanced through the pressure reducing valve, and the flow rate of the injection molding raw material inside the connecting plate is controlled, thereby reducing the situation of valve plate damage caused by excessive pressure inside the valve plate. The check valve restricts the one-way flow of the injection molding raw material inside the connecting plate, thereby reducing the situation of reverse flow of the injection molding raw material inside the connecting plate, and further improving the use stability of the valve plate.

[0020] Preferably, the fastener includes bolts, and a plurality of the bolts pass through the mounting plate and are in threaded cooperation with the valve plate assembly.

[0021] By adopting the above technical solution, the mounting plate and the valve plate assembly are connected through bolts, thereby improving the connection strength between the mounting plate and the valve plate assembly. By connecting with a plurality of bolts, the situation of relative rotation between the mounting plate and the valve plate assembly is reduced.

[0022] Preferably, a counterbore for bolt installation is provided on the mounting plate.

[0023] By adopting the above technical solution, the bolt is embedded in the mounting plate through the counterbore, thereby reducing the loosening of the bolt caused by external influences, and further improving the connection strength between the mounting plate and the valve plate assembly, and enhancing the stability of the valve plate during use.

[0024] Preferably, a check valve is provided on the valve plate assembly, and a pressure indicating device is provided on the check valve.

[0025] By adopting the above technical solution, the injection molding raw material in the valve plate assembly is restricted to flow unidirectionally through the check valve, and the real-time pressure inside the valve plate assembly is displayed through the pressure indicating device, so as to conveniently adjust parameters such as the speed of the injection molding raw material injected into the valve plate according to the pressure, and further improve the convenience of using the valve plate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The valve plate assembly is fixed on the injection molding machine through the mounting plate. When the valve plate needs to be replaced, the specification of the valve plate can be changed by replacing the valve plate assembly, thereby reducing the waste of materials of the mounting plate and improving the utilization rate of the valve plate materials;

[0028] 2. Different conditions are adapted by the first valve plate, the second valve plate, the third valve plate and the fourth valve plate with different specifications, so as to select the corresponding valve plate assembly according to the number of gate sequence valves to be installed, and further improve the applicability of the valve plate assembly;

[0029] 3. By symmetrically arranging the valve plate assembly, the upper limit of the number of mounting grooves on the valve plate is increased, and through the combination of the first valve plate, the second valve plate, the third valve plate and the fourth valve plate, the number of mounting grooves closest to the number of gate sequence valves to be installed is matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a combined gate sequence valve plate in Embodiment 1 of the present application.

[0031] Figure 2 is an exploded view of the valve plate.

[0032] Figure 3 is a schematic structural diagram of the valve plate assembly.

[0033] Figure 4 is a schematic structural diagram of a combined gate sequence valve plate in Embodiment 2 of the present application.

[0034] Explanation of the accompanying drawings: 1. Mounting plate; 2. Valve plate assembly; 3. Mounting groove; 4. First valve plate; 5. Second valve plate; 6. Third valve plate; 7. Fourth valve plate; 8. Connecting plate; 9. Stop valve; 10. Pressure reducing valve; 11. Check valve; 12. Pressure indicating device; 13. Reversing valve; 14. Fastener; 15. Countersunk groove. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1-4 This application is described in further detail.

[0036] Embodiment 1:

[0037] Reference Figure 1 and Figure 2 , the embodiment of the present application discloses a combined gate sequence valve plate, including a mounting plate 1 and a valve plate assembly 2. A pressure reducing valve 10 and a one-way valve 11 are provided on the connecting plate 8. In the present embodiment, the one-way valve 11 on the mounting plate 1 adopts a right-angle one-way valve 11. The valve plate assembly 2 is provided on one side of the mounting plate 1. One valve plate assembly 2 can be provided or two valve plate assemblies 2 can be provided symmetrically. In the present embodiment, two valve plate assemblies 2 of the same length are taken as an example. The valve plate assembly 2 is fixedly connected to the mounting plate 1 by a fastener 14. In the present embodiment, the valve plate assembly 2 is fixed to the mounting plate 1 by bolts. A countersunk groove 15 for the bolts to pass through is provided on the mounting plate 1. A plurality of bolts pass through the countersunk groove 15 and then cooperate with the threaded holes provided on the valve plate assembly 2, thereby fixing the mounting plate 1 and the valve plate assembly 2 in connection.

[0038] Reference Figure 1 A connecting plate 8 is fixed to the side of the valve plate assembly 2 away from the mounting plate 1 by bolts, and both ends of the connecting plate 8 are fixedly connected to the adjacent valve plate assembly 2 by bolts, thereby improving the structural strength of the valve plate assembly 2 and reducing the damage of the valve plate assembly 2.

[0039] Reference Figure 1 The valve plate assembly 2 is fixed with a one-way valve 11 and a reversing valve 13 by bolts. In this embodiment, the reversing valve 13 is an NG6 reversing valve 13. The one-way valve 11 is provided with a pressure indicating device 12. In this embodiment, a pressure gauge is used. The pressure indicating device 12 displays the internal pressure of the valve plate assembly 2, so that the injection speed of the connection plate 8 can be adjusted according to the internal pressure of the valve plate assembly 2.

[0040] Reference Figure 2 and Figure 3, an installation groove 3 for installing the one-way valve 11 or the reversing valve 13 is provided on the valve plate assembly 2. Different numbers of installation grooves 3 are provided on the valve plate assemblies 2 with different lengths. In this embodiment, the valve plate assembly 2 includes a first valve plate 4, a second valve plate 5, a third valve plate 6, and a fourth valve plate 7. Four groups of installation grooves 3 are provided on the first valve plate 4, six groups of installation grooves 3 are provided on the second valve plate 5, eight groups of installation grooves 3 are provided on the third valve plate 6, and ten groups of installation grooves 3 are provided on the fourth valve plate 7. By combining the first valve plate 4, the second valve plate 5, the third valve plate 6, and the fourth valve plate 7, the number of installation grooves 3 with a lower limit of zero and an upper limit of twenty can be adapted. Select the valve plate combination closest to the number of the gate sequence valves to be installed, and cover the unused installation grooves 3 with a blank cap to improve the sealing performance of the valve plate.

[0041] Embodiment 2:

[0042] Referring to Figure 4 , the difference between this embodiment and Embodiment 1 is that the valve plate assemblies 2 are symmetrically arranged on one side of the mounting plate 1 and the lengths of the adjacent valve plate assemblies 2 are different. A stop valve 9 is fixed to the side of the valve plate assembly 2 away from the connecting plate 8 by bolts. The valve plate is depressurized through the stop valve 9, thereby improving the stability of the valve plate during use.

[0043] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A combined gate sequence valve plate, comprising a mounting plate (1), characterized in that: At least one valve plate assembly (2) is provided on one side of the mounting plate (1), and the valve plate assembly (2) is fixedly connected to the mounting plate (1) by a fastener (14).

2. The combined gate sequence valve plate according to claim 1, characterized in that: An installation groove (3) for installing a reversing valve (13) or a check valve (11) is formed in the valve plate assembly (2).

3. The combined gate sequence valve plate according to claim 1, wherein: The valve plate assemblies (2) are symmetrically arranged on one side of the mounting plate (1), and the lengths of adjacent valve plate assemblies (2) are different.

4. The combined gate sequence valve plate according to claim 1, characterized in that: The valve plate assemblies (2) are symmetrically arranged on one side of the mounting plate (1), and the lengths of adjacent valve plate assemblies (2) are the same.

5. The modular gating sequence valve plate according to claim 4, characterized in that: A connecting plate (8) for connecting adjacent valve plate assemblies (2) is provided at one end of the valve plate assembly (2) away from the mounting plate (1).

6. The combined gate sequence valve plate according to claim 1, characterized in that: A stop valve (9) is provided at one end of the valve plate assembly (2) away from the mounting plate (1).

7. A combined gate sequence valve plate according to claim 1, characterized in that: A pressure reducing valve (10) is provided on the mounting plate (1), and a check valve (11) is provided on the mounting plate (1).

8. The combined gate sequence valve plate according to claim 1, wherein: The fastener (14) includes bolts, and a plurality of the bolts pass through the mounting plate (1) and are in threaded cooperation with the valve plate assembly (2).

9. The combined gate sequence valve plate according to claim 8, wherein: A counterbore (15) for installing the bolts is formed in the mounting plate (1).

10. A combined gate sequence valve plate according to claim 1, characterized in that: A check valve (11) is provided on the valve plate assembly (2), and a pressure indicating device (12) is provided on the check valve (11).

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