TWM654588U - Injection molding machine nozzle structure - Google Patents

Abstract

A nozzle structure of an injection molding machine includes a nozzle head, a check rod and a discharge nut, wherein the nozzle head is provided with a material injection hole at one end, the material injection hole forms an inclined surface at the end surface of the nozzle head, and a threaded portion is provided around the outer ring; one end of the check rod has a rod portion, which can move and extend in the material injection hole of the nozzle head, and the inner diameter of the rod portion forms a slot hole, which is connected to a plurality of through holes on the surface of the rod portion, and the other end has a cone The cone body has a conical surface, which can be fitted with and separated from the inclined surface of the nozzle head: the discharge nut is provided with a discharge hole on one side, and the other side is screwed with the threaded portion of the nozzle head, and the discharge hole is communicated with the slot of the check rod; when the nozzle leaves the mold, the discharge nut is locked to the nozzle head, so that the check rod top contacts the discharge nut, so that the residual material in the nozzle is discharged through the through hole and the slot and through the discharge hole, which can improve the product yield.

Description

Injection molding machine nozzle structure

This invention provides a nozzle structure for an injection molding machine, especially one that can discharge the residual material in the nozzle during the process of changing plastics when multiple plastics are injected according to different injection products or molds, thereby improving the product yield.

At present, with the diversification and customization of plastic products, injection molding machines are no longer products that are made of a single color or material. They make the product have multiple levels of changes in appearance, increase the aesthetic and unique visual image, and have been widely used in the manufacturing of various plastic products.

However, it is known that during the injection molding process of multiple plastics, when the second plastic is replaced for injection, the previous plastic will still remain in the nozzle, and the newly injected plastic will be mixed with the residual plastic, resulting in mixed materials and uneven colors of the product after injection molding, resulting in poor product yield. In view of the above shortcomings, the creator of the present invention has conducted in-depth research and development and improvement. After a long period of continuous efforts and attempts, this creation was produced.

Therefore, this invention provides a nozzle structure of an injection molding machine that can discharge the residual material in the nozzle during the process of replacing plastics when performing multi-color injection according to different injection products or molds, thereby improving the product yield.

To achieve the above-mentioned purpose, the nozzle structure of the injection molding machine of the invention includes a nozzle head, a check rod and a discharge nut, wherein the nozzle head is provided with a discharge hole at one end, the discharge hole forms an inclined surface at the end surface inside the nozzle head, and has a threaded portion around the outer ring; the check rod has a rod portion at one end, which can move and extend in the discharge hole of the nozzle head, and the inner diameter of the rod portion forms a slot hole, which is connected to a plurality of through holes on the surface of the rod portion, and the other end has a cone, the cone has a cone surface, and the cone surface can be attached to and separated from the inclined surface of the nozzle head; the discharge nut is provided with a discharge hole on one side, and the other side is screwed with the threaded portion of the nozzle head, and the discharge hole is connected to the slot hole of the check rod.

The nozzle structure of the injection molding machine is characterized in that the angles of the inclined surface and the conical surface are consistent.

Based on the above, when the nozzle leaves the mold, the discharge nut is locked on the nozzle head, so that the check rod top contacts the discharge nut, so that the residual material in the nozzle is discharged through the through hole and the slot hole through the discharge hole, which can improve the product yield.

In order to achieve the above-mentioned purpose, the technical means and the effects that can be achieved by this invention are described in detail with the following preferred embodiments and attached figures so that it can be fully understood. In addition, the components and steps known to the public are not described in the embodiments to avoid unnecessary restrictions on this invention. This is stated in advance.

The articles "a", "an" and "the" mentioned in the embodiments and the scope of the patent may refer to a single or plural number unless otherwise specified in the specification.

Referring to FIGS. 1 to 4 , the nozzle 1 structure of the injection molding machine of the present invention embodiment comprises a nozzle head 10, a check rod 20 and a discharge nut 30, wherein the nozzle head 10 is provided with a material injection hole 11 at one end, the material injection hole 11 forms an inclined surface 12 on the end surface inside the nozzle head 10, and has a threaded portion 13 around the outer ring; the check rod 20 has a rod portion 21 at one end, which can move and extend in the material injection hole 11 of the nozzle head 10. The inner diameter of the rod 21 forms a slotted hole 22, which communicates with a plurality of through holes 23 on the surface of the rod 21, and the other end has a cone 24, the cone 24 has a cone surface 25, and the cone surface 25 can be attached to and separated from the inclined surface 12 of the nozzle head 10: the discharge nut 30 is provided with a discharge hole 31 on one side, and the other side is screwed with the threaded portion 13 of the nozzle head 10, and the discharge hole 31 communicates with the slotted hole 22 of the check rod 20.

The angle of the inclined surface 12 matches that of the conical surface 25. When the nozzle 1 leaves the mold, the inclined surface 12 fits tightly with the conical surface 25 to prevent the plastic from overflowing.

Please refer to FIG. 5. During operation, when the nozzle 1 leaves the mold, the discharge nut 30 is locked to the nozzle head 10, so that the check rod 20 contacts the discharge nut 30, and the slot 22 is in an injection opening state, so that the residual material in the nozzle 1 is discharged through the through hole 23 and the slot 22 through the discharge hole 31. When the residual material in the nozzle 1 is discharged, the discharge nut 30 is removed from the nozzle head 10, and the next step of plastic injection into the mold is carried out.

Therefore, the injection molding products can meet the diversified and customized requirements. By locking the discharge nut 30 on the nozzle head 10, the residual material in the nozzle 1 is discharged through the discharge hole 31, which can improve the product yield.

In summary, this creation can achieve the expected functions and purposes, and the detailed description enables those skilled in the art to implement it accordingly. However, the above-mentioned implementation examples are only used to illustrate this creation, and all changes to equivalent structures do not deviate from the scope of rights of this creation.

1: Nozzle 10: Nozzle head 11: Injection hole 12: Inclined surface 13: Threaded part 20: Check rod 21: Rod part 22: Slotted hole 23: Through hole 24: Cone 25: Cone surface 30: Discharge nut 31: Discharge hole

Figure 1 is a three-dimensional diagram of the present invention. Figure 2 is a three-dimensional exploded diagram of the present invention. Figure 3 is a combined cross-sectional view of the present invention. Figure 4 is an exploded cross-sectional view of the present invention. Figure 5 is a schematic diagram of the movement of the present invention when leaving the mold.

1: Shooting mouth

10: Nozzle head

11: Injection hole

13: Threaded part

20: Check rod

21: Rod

22: Slot

23:Through hole

24: pyramidal body

25: Cone

30: Discharge nut

31: Discharge hole

Claims (2)

A nozzle structure of an injection molding machine includes: A nozzle head, with a shot hole at one end, the shot hole forms an inclined surface on the end surface of the nozzle head, and has a threaded portion around the outer ring; A check rod, with a rod at one end, which can move and extend in the shot hole of the nozzle head, the inner diameter of the rod forms a slot hole, the slot hole is connected to a plurality of through holes on the surface of the rod, and the other end has a cone, the cone has a cone surface: and A discharge nut, with a discharge hole at one side, the other side is screwed with the threaded portion of the nozzle head, the discharge hole is connected to the slot hole of the check rod. A nozzle structure for an injection molding machine as described in claim 1, wherein the angle of the inclined surface matches the angle of the tapered surface.

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