Sliding rail push plate driving structure of needle valve type hot runner

Abstract

The sliding rail push plate driving structure of the needle valve type hot runner comprises a pushing device, the pushing device is connected with a pull rod connecting part, the pull rod connecting part is connected with a push plate, a plurality of valve needle fixing holes are evenly formed in the push plate, and the valve needle fixing holes serve as valve needle loading parts; the push plate is arranged corresponding to the mold foot, the mold foot is provided with a push guide part corresponding to the push plate, and the push plate is also provided with an auxiliary smooth piece corresponding to the mold foot, so that the needle valve type hot runner driving structure with high precision and stable operation is formed.

Description

Technical Field

[0001] The utility model relates to a precision manufacturing technology and a precision manufacturing mold, in particular to a slide rail push plate driving structure of a needle valve type hot runner. Background Art

[0002] With the vigorous development of micro-nano technology, the demand for miniaturized and precision products is increasing, and the concept of "miniature" has penetrated into all walks of life. Conventional hot runner needle valve systems are directly applied to miniaturized injection molding, and there is an unstable driving valve needle structure problem, which affects product quality.

[0003] Therefore, it is necessary to provide a slide rail push plate driving structure of a needle valve type hot runner to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a slide rail push plate driving structure of a needle valve type hot runner.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A slide rail push plate driving structure of a needle valve hot runner, comprising a pushing device, the pushing device is connected to a pull rod connecting part, the pull plate connecting part is connected to a push plate, a plurality of valve needle fixing holes are evenly arranged on the push plate, and the valve needle fixing holes are used as valve needle loading parts;

[0007] The push plate is arranged corresponding to the mold foot, and a pushing guide portion is arranged on the mold foot corresponding to the push plate, and an auxiliary smoothing part is also arranged on the push plate corresponding to the mold foot, so as to form a needle valve type hot runner driving structure with high precision and stable operation.

[0008] Furthermore, the pushing device is composed of a servo electric cylinder.

[0009] Furthermore, the pushing guide portion is composed of a group of correspondingly arranged wear-resistant plates.

[0010] Furthermore, the auxiliary smoothing member is composed of a guide post, a ball guide sleeve and a guide column.

[0011] Furthermore, the pull rod connection portion includes a cross bar, a U-groove is provided on the cross bar, and an electric cylinder connecting block is provided in the U-groove connected to the electric cylinder shaft of the servo electric cylinder.

[0012] Furthermore, pull rods are correspondingly arranged on both sides of the cross bar, and the pull rods are fixedly connected to the push plates.

[0013] Furthermore, the pull rod is also provided with a slide block, and the slide block is used in conjunction with an external side slide rail.

[0014] Furthermore, an oil guide groove is provided between the external side slide rail and the slider to introduce lubricating oil in real time, and cooperates with auxiliary smooth parts to form a dual high-quality sliding guide structure.

[0015] Compared with the prior art, the utility model meets the injection molding requirements of miniaturized and precision products through a high-precision and stable needle valve hot runner drive structure, can flexibly control the speed and accuracy of movement, and the overall hot runner system has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0017] Example:

[0018] See also Figure 1 This embodiment is a slide rail push plate driving structure of a needle valve hot runner, comprising a pushing device 1, the pushing device 1 is connected to a pull rod connecting part, the pull plate connecting part is connected to a push plate 2, a plurality of valve needle fixing holes 32 are evenly arranged on the push plate 2, and the valve needle fixing holes 32 are used as a valve needle loading part;

[0019] The push plate 3 is arranged corresponding to the mold foot 4, and the mold foot 4 is provided with a pushing guide portion corresponding to the push plate, and the push plate is also provided with an auxiliary smoothing member 31 corresponding to the mold foot, forming a needle valve type hot runner drive structure with high precision and stable operation.

[0020] The pushing device 1 is composed of a servo electric cylinder.

[0021] The pushing guide portion is composed of a group of correspondingly arranged wear-resistant plates 41.

[0022] The auxiliary smooth member 31 is composed of a guide post and a ball guide sleeve.

[0023] The pull rod connection part comprises a cross bar 2 , on which a U groove is arranged, and an electric cylinder connecting block 21 is arranged in the U groove in which the electric cylinder shaft of the servo electric cylinder 1 is connected.

[0024] Pull rods 22 are correspondingly arranged on both sides of the cross bar 2 , and the pull rods 22 are fixedly connected to the push plate 3 .

[0025] The pull rod 2 is also provided with a slide block 23, and the slide block 23 is used in conjunction with an external side slide rail.

[0026] An oil guide groove is also provided between the external side slide rail and the slider 23 for real-time lubricating oil introduction, and cooperates with the auxiliary smooth parts to form a dual high-quality sliding guide structure.

[0027] Compared with the prior art, the utility model meets the injection molding requirements of miniaturized and precision products through a high-precision and stable needle valve hot runner drive structure, can flexibly control the speed and accuracy of movement, and the overall hot runner system has high stability.

[0028] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A slide rail push plate driving structure of a needle valve hot runner, characterized in that: It includes a pushing device, the pushing device is connected to a pull rod connecting part, the pull plate connecting part is connected to a push plate, a plurality of valve needle fixing holes are evenly arranged on the push plate, and the valve needle fixing holes are used as valve needle loading parts; The push plate is arranged corresponding to the mold foot, and a pushing guide portion is arranged on the mold foot corresponding to the push plate, and an auxiliary smoothing part is also arranged on the push plate corresponding to the mold foot, so as to form a needle valve type hot runner driving structure with high precision and stable operation.

2. The slide rail push plate driving structure of a needle valve type hot runner according to claim 1, characterized in that: The driving device is composed of a servo electric cylinder.

3. The slide rail push plate driving structure of a needle valve type hot runner according to claim 2, characterized in that: The pushing guide part is composed of a group of wear-resistant plates which are arranged correspondingly.

4. The slide rail push plate driving structure of a needle valve type hot runner according to claim 3, characterized in that: The auxiliary smooth parts are composed of guide pins and ball guide bushings.

5. A guide rail push plate driving structure for a needle valve hot runner according to any one of claims 1 to 4, characterized in that: The pull rod connection part comprises a cross bar, a U groove is arranged on the cross bar, and an electric cylinder connecting block is arranged in the U groove connected to the electric cylinder shaft of the servo electric cylinder.

6. The slide rail push plate driving structure of a needle valve type hot runner according to claim 5, characterized in that: Pull rods are correspondingly arranged on both sides of the cross bar, and the pull rods are fixedly connected to the push plates.

7. The slide rail push plate driving structure of a needle valve type hot runner according to claim 6, characterized in that: The pull rod is also provided with a slide block, and the slide block is used in conjunction with an external side slide rail.

8. The slide rail push plate driving structure of a needle valve type hot runner according to claim 7, characterized in that: An oil guide groove is also provided between the external side rails and the sliders for real-time lubrication oil introduction, which, together with auxiliary smooth parts, forms a dual high-quality sliding guide structure.

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