Drip-proof injection molding nozzle for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machine accessories, in particular to a drip-proof injection molding nozzle for an injection molding machine. Comprising a nozzle body, a conveying pipe is arranged in the nozzle body and fixedly sleeved with a displacement plate, pushing motors are fixedly connected to the two sides of the nozzle body correspondingly, the output ends of the two pushing motors are fixedly connected with the two ends of the displacement plate correspondingly, the bottom end of the displacement plate is fixedly connected with a damper sleeved with a spring, and the other end of the damper is fixedly connected with a limiting ring; the limiting ring is fixedly connected with the inner wall of the nozzle body, and one end of the conveying pipe penetrates into the limiting ring. The utility model aims to solve the technical problem that an injection molding nozzle can suck impurities and dust in the environment during backflow air exhaust.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine accessory technical field especially, relates to a kind of anti-dripping injection molding nozzle for injection molding machine. BACKGROUND

[0002] Injection molding machine nozzle is the key component in the production process of injection molding machine, after thermoplastic or thermosetting plastic material is heated to molten state, through injection molding machine nozzle, injection mold and other components, product is formed, the process is widely applied in automobile, electronic, daily necessities and multiple industries, with reliable stability and universality.

[0003] After injection molding, a little liquid material will be left in the nozzle, which often drips onto the workbench and is difficult to clean after solidification, which is quite troublesome. In order to prevent dripping, it is usually necessary to use an injection molding machine for air extraction operation, but the material injection end of the traditional nozzle is exposed to the outside, and when backflow air extraction is performed, impurities and dust in the environment will be sucked into the material conveying cavity of the injection molding nozzle, which may cause the material conveying cavity to be blocked, and is not conducive to the quality of subsequent product production. SUMMARY

[0004] The technical problem to be solved by the utility model is that when backflow air extraction is performed, impurities and dust in the environment will be sucked into the injection molding nozzle.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme of an anti-dripping injection molding nozzle for an injection molding machine, which comprises a nozzle body, a material conveying pipe is arranged inside the nozzle body, a displacement plate is fixedly arranged on the material conveying pipe, a push motor is fixedly connected to both sides of the nozzle body, the output ends of the two push motors are fixedly connected to both ends of the displacement plate, a damper with a spring is fixedly connected to the bottom end of the displacement plate, the other end of the damper is fixedly connected to a limiting ring, the limiting ring is fixedly connected to the inner wall of the nozzle body, and one end of the material conveying pipe penetrates the limiting ring.

[0006] As a further improvement of the utility model, grooves are formed in both sides of the nozzle body for sliding of both ends of the displacement plate.

[0007] As a further improvement of the utility model, a convex ring is fixedly connected to the top end of the material conveying pipe.

[0008] As a further improvement of the utility model, a guide column is fixedly connected to the top end of the nozzle body.

[0009] As a further improvement of the utility model, a mounting hole is formed in the top end of the nozzle body.

[0010] As a further improvement of the utility model, the diameter of the bottom end of the material conveying pipe is smaller than the diameter of the bottom end of the nozzle body.

[0011] The utility model discloses beneficial effect: the utility model discloses a feed pipe is equipped with in the nozzle body, and when injection molding equipment works, through the feed pipe in the communication nozzle, and start the push motor, make it drive the displacement plate of output end, drive the feed pipe and move to the nozzle body discharge place, to carry out injection molding operation. When needing to carry out the backflow of extraction, the push motor of injection molding nozzle both sides back rises the displacement plate of output end, drives the feed pipe and moves back to the inside of nozzle body, carries out the backflow of extraction again, under the protection of nozzle body, can avoid the blockage of feed pipe caused by excessive dust impurities when exposing in the outside extraction, effectively reduces the risk of device shutdown. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the whole schematic diagram of the injection molding machine with the anti-dripping injection molding nozzle of the utility model,

[0013] Figure 2 It is the whole sectional view of the injection molding machine with the anti-dripping injection molding nozzle of the utility model,

[0014] Figure 3 It is the partial sectional view of the injection molding machine with the anti-dripping injection molding nozzle of the utility model,

[0015] Figure 4 It is the plan view of the injection molding machine with the anti-dripping injection molding nozzle of the utility model.

[0016] As shown in the figure: 1, nozzle body, 2, feed pipe, 3, displacement plate, 4, push motor, 5, damper, 6, limit ring, 7, slot, 8, convex ring, 9, guide column, 10, mounting hole. DETAILED DESCRIPTION

[0017] In the present specification, the orientation terms such as up, down, left, right, front, back, front face, back face, top, bottom, etc. mentioned or possibly mentioned are defined with respect to its structure, and they are relative concepts. Therefore, it is possible to change accordingly according to its different positions, different use states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0018] In the present specification, the singular forms "a", "an" and "the" are intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0019] In order to make the technical problems, technical schemes and beneficial effects of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present application and not to limit the present application.

[0020] The utility model provides a like attached Figures 1-4 As shown in a kind of anti-dripping injection molding nozzle for injection molding machine, including nozzle body 1, nozzle body 1 inside is equipped with material conveying pipe 2, material conveying pipe 2 is fixedly sleeved with displacement plate 3, both sides of nozzle body 1 are fixedly connected with push motor 4, the output end of two push motors 4 is fixedly connected with displacement plate 3 both ends respectively, displacement plate 3 bottom end is fixedly connected with the damper 5 of spring sleeve, the other end of damper 5 is fixedly connected with limit ring 6, limit ring 6 is fixedly connected with nozzle body 1 inner wall, material conveying pipe 2 one end is arranged in limit ring 6 ring.

[0021] As shown in Figure 3 Both sides of nozzle body 1 are equipped with slot 7 for the both ends of displacement plate 3 sliding;By being equipped with the slot 7 for the both ends of displacement plate 3 passing through, can be driven under the push motor 4, make displacement plate 3 drive the stable displacement of material conveying pipe fixedly connected with it downward, upward, guarantee the stability of structure operation.

[0022] As shown in Figure 4 The top of material conveying pipe 2 is fixedly connected with convex ring 8;The convex ring 8 is used for fastening the joint of material conveying pipe 2 and the output end of injection molding equipment, so that the output end of injection molding equipment and material conveying pipe 2 are interconnected;Nozzle body 1 top is fixedly connected with guide column 9, and nozzle body 1 top is equipped with mounting hole 10;The guide column 9 and mounting hole 10 are helpful to the mounting connection process between nozzle body 1 and the output end of injection molding equipment.

[0023] As shown in Figure 2 The bottom diameter of material conveying pipe 2 is less than the bottom diameter of nozzle body 1;By reserving gap, the mutual jamming of the bottom of material conveying pipe 2 and the bottom of nozzle body 1 when moving material conveying pipe 2 can be effectively avoided.

[0024] Working principle: in the embodiment of the utility model, first, the push motor 4 on both sides of nozzle body 1 is started, so that the output end drives displacement plate 3 to move downward, and displacement plate 3 drives material conveying pipe 2 to move downward.During the movement process, damper 5 provides good damping effect for the movement of displacement plate 3 and material conveying pipe 2.Until the bottom of material conveying pipe 2 moves to the bottom outlet of nozzle body 1, push motor 4 stops pushing, and injection molding equipment carries out injection molding.When the injection molding is finished, and backflow air extraction is needed, start push motor 4, make its retracting output end push rod, drive material conveying pipe 2 fixedly connected with displacement plate 3 to move upward, make material conveying pipe 2 move to the inner cavity of nozzle body 1, finally carry out backflow air extraction operation.Because of the protection of nozzle body 1, the contact area of material conveying pipe 2 with external environment during air extraction is effectively reduced, the blockage of material conveying pipe 2 caused by too much dust particles is avoided.

[0025] The foregoing embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A drip-free injection nozzle for an injection molding machine, comprising a nozzle body (1), characterized in that: The inside of the nozzle body (1) is provided with a material conveying pipe (2), the material conveying pipe (2) is fixedly sleeved with a displacement plate (3), both sides of the nozzle body (1) are fixedly connected with push motors (4), the output ends of the two push motors (4) are fixedly connected with both ends of the displacement plate (3) respectively, the bottom end of the displacement plate (3) is fixedly connected with a damper (5) sleeved with a spring, the other end of the damper (5) is fixedly connected with a limiting ring (6), the limiting ring (6) is fixedly connected with the inner wall of the nozzle body (1), one end of the material conveying pipe (2) is penetrated in the ring of the limiting ring (6).

2. A drip-free injection molding nozzle for an injection molding machine as defined in claim 1, characterized in that: The both sides of the nozzle body (1) are provided with grooves (7) for sliding of both ends of the displacement plate (3).

3. A drip-free injection molding nozzle for an injection molding machine as defined in claim 1, wherein: The top end of the material conveying pipe (2) is fixedly connected with a convex ring (8).

4. The drip-free injection molding nozzle for an injection molding machine of claim 1, wherein: The top end of the nozzle body (1) is fixedly connected with a guide column (9).

5. A drip-free injection molding nozzle for an injection molding machine as defined in claim 1, wherein: The top end of the nozzle body (1) is provided with a mounting hole (10).

6. A drip-free injection molding nozzle for an injection molding machine as defined in claim 1, wherein: The bottom end diameter of the material conveying pipe (2) is smaller than the bottom end diameter of the nozzle body (1).

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