Valve needle integral driving structure

Abstract

The utility model discloses a valve needle integral driving structure which comprises an ejector plate, a valve needle and a valve needle, the plurality of valve needles are fixed on the ejector plate; and the driving device is arranged on the ejection plate and is used for driving the ejection plate to move so as to drive the plurality of valve needles to move synchronously. The hot runner system has the beneficial effects that the design of the hot runner system is simplified, the number of conventional pneumatic cylinders or oil hydraulic cylinders is reduced, the problem of insufficient space of the conventional pneumatic cylinders and oil hydraulic cylinders is solved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot runner system technology, and in particular to an integral valve needle drive structure. Background Technology

[0002] (see Figure 1 Because the spacing between multiple valve needles in the traditional system is too small, there is insufficient space when using the conventional pneumatic cylinder 1 or hydraulic cylinder 1. The traditional drive method uses 16 pneumatic cylinders or hydraulic cylinders, which leads to increased costs.

[0003] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an integral valve needle drive structure to address the above-mentioned shortcomings and defects of the prior art.

[0005] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0006] A valve needle integral drive structure, characterized in that it comprises:

[0007] Ejector plate;

[0008] Several valve needles fixed on the top plate;

[0009] A drive device disposed on the ejector plate and used to drive the ejector plate to move, thereby causing the plurality of valve needles to move synchronously.

[0010] In a preferred embodiment of the present invention, the driving device includes two pneumatic cylinders or two hydraulic cylinders, which are disposed on the ejector plate and used to drive the ejector plate to move, thereby driving the plurality of valve needles to move synchronously.

[0011] In a preferred embodiment of this utility model, each valve needle is fixed to the top plate by a mounting plate at the tail of the valve needle.

[0012] In a preferred embodiment of the present invention, each valve needle is spaced apart on the top plate and located on both sides of the drive device.

[0013] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model simplifies the design of the hot runner system, reduces the number of conventional pneumatic or hydraulic cylinders, solves the problem of insufficient space for traditional pneumatic and hydraulic cylinders, and reduces costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the existing technology.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] See Figures 2 to 3 The valve needle integral drive structure shown includes an ejector plate 10, a plurality of valve needles 20, and a drive device 30.

[0020] A plurality of valve needles 20 are disposed on the ejector plate 10. In this embodiment, each valve needle 20 is fixed to the ejector plate 10 by a mounting bracket at the tail of the valve needle. Moreover, each valve needle 20 is spaced apart on the ejector plate 10 and located on both sides of the drive device 30. Specifically, there are 16 valve needles in total, arranged in groups of 8. One group of 8 valve needles is longitudinally spaced on the left side of the ejector plate 10, and another group of 8 valve needles is longitudinally spaced on the right side of the ejector plate 10. The 16 valve needles are arranged symmetrically.

[0021] The drive device 30 is mounted on the ejector plate 10 and is used to drive the ejector plate 10 to move, thereby causing a plurality of valve needles 20 to move synchronously. In this embodiment, the drive device 30 includes two pneumatic cylinders 31 or two hydraulic cylinders 31. The two pneumatic cylinders 31 or two hydraulic cylinders 31 are mounted on the ejector plate 10 and are used to drive the ejector plate 10 to move, thereby causing a plurality of valve needles 20 to move synchronously. In use, the pneumatic cylinders 31 or hydraulic cylinders 31 use the pressure of compressed air or hydraulic oil to push the piston 32 to move linearly in the cylinder, and then transmit this linear motion to the ejector plate 10 through the rigidly connected piston rod 33.

[0022] In use, all valve needles 20 are hung on the same ejector plate 10. Two or four pneumatic cylinders 31 or hydraulic cylinders 31 use the pressure of compressed air or hydraulic oil to push the piston 32 to make linear motion in the cylinder. This linear motion is then transmitted to the ejector plate 10 through the rigidly connected piston rod 33. Since the ejector plate 10 is fixed to the valve needles 20, the ejector plate 10 drives the valve needles 20 to make up-down linear motion, thereby realizing the opening and closing of the valve needles 20.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve needle integral drive structure, characterized in that, include: Ejector plate; Several valve needles fixed on the top plate; A drive device disposed on the ejector plate and used to drive the ejector plate to move, thereby causing the plurality of valve needles to move synchronously.

2. The valve needle integral drive structure according to claim 1, characterized in that, The driving device includes two pneumatic cylinders or two hydraulic cylinders, which are mounted on the ejector plate and used to drive the ejector plate to move, thereby driving the plurality of valve needles to move synchronously.

3. The valve needle integral drive structure according to claim 1, characterized in that, Each valve needle is fixed to the top plate by a mounting plate at the tail of the valve needle.

4. The valve needle integral drive structure according to claim 1, characterized in that, Each valve needle is spaced apart on the top plate and located on both sides of the drive device.

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