CN211730076U

CN211730076U - Die cutting tool

Info

Publication number: CN211730076U
Application number: CN201922310262.9U
Authority: CN
Inventors: 胡华丹; 陶宣辉
Original assignee: Zhenzhun Electronics Kunshan Co ltd
Current assignee: Zhenzhun Electronics Kunshan Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-23
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to the field of dies, in particular to a die cutting tool, which comprises a tool body and a tool bar; the cutter body is arranged on a mould, the mould comprises an upper mould and a lower mould, and an upper mould core is arranged on the upper mould; a lower die core is arranged on the lower die; a die cavity is formed between the upper die core and the lower die core; the lower die is provided with a cutter bar sliding groove for mounting a cutter bar; the cutter bar is provided with an installation groove for installing the cutter body; the knife body comprises a knife edge and a knife body; the knife edge is arranged above the knife body; the heating sheet is arranged at the lower part of the cutter body and surrounds the cutter body, and a heat insulation pad is arranged between the heating sheet and the cutter bar; the lower die is fixedly provided with a baffle plate, a limiting plate is fixedly arranged on the side face of the cutter bar, and an elastic pad is arranged above the limiting plate. The die cutting tool can complete the cutting work of the product water gap after the plastic die is formed, and improves the forming rate of the product.

Description

Die cutting tool

Technical Field

The utility model relates to a mould field, concretely relates to cross cutting cutter.

Background

With the continuous development of society, electronic products have become an indispensable tool for everyone, and many housing parts of the electronic products are formed by injection molding through an injection mold. The injection molds generally adopt a plane sprue pouring mode, products and water gap materials need to be separated after injection molding, and manual cutting treatment or automatic machine secondary processing treatment is generally adopted. However, the manual cutting treatment and the automatic machine secondary processing both increase the cost investment, and the manual cutting treatment has low efficiency, easily damages the surface of the product, and affects the flatness quality and the appearance requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a cross cutting cutter, accomplish the excision work at the product mouth of a river simultaneously after the plastic mold shaping, improved the shaping rate of product.

For realizing the purpose of the utility model, the utility model adopts the technical proposal that:

a die cutting tool comprises a tool body and a tool bar; the cutter body is arranged on a mould, the mould comprises an upper mould and a lower mould, and an upper mould core is arranged on the upper mould; a lower die core is arranged on the lower die; a die cavity is formed between the upper die core and the lower die core; the lower die is provided with a cutter bar sliding groove for mounting a cutter bar; the cutter bar is provided with an installation groove for installing the cutter body; the knife body comprises a knife edge and a knife body; the knife edge is arranged above the knife body; the heating sheet is arranged at the lower part of the cutter body and surrounds the cutter body, and a heat insulation pad is arranged between the heating sheet and the cutter bar; the lower die is fixedly provided with a baffle plate, a limiting plate is fixedly arranged on the side face of the cutter bar, and an elastic pad is arranged above the limiting plate.

Furthermore, the side surface of the upper end of the cutting edge is arc-shaped.

Furthermore, the length of the mounting groove is one third to two thirds of the length of the cutter body.

Furthermore, the heat insulation pad is made of glass fiber.

Furthermore, a ball is arranged in the cutter bar sliding groove.

Furthermore, the heating plate is made of copper-nickel alloy.

Compared with the prior art, the application has the following beneficial effects:

the die cutting tool can smoothly complete the cutting work of the product water gap, the forming rate of the product is improved, the elastic pad is in soft contact with the baffle plate firstly in the ascending process of the cutter bar, and the baffle plate gives a reaction force to the limiting plate while in contact, so that the cutter body slowly seals the water gap, and the influence of the cutter body on the instantaneous quick sealing of the water gap on the product quality is avoided; when the heated cutting edge is used for cutting a product, the cutting quality is ensured, so that the cut product is free from burr, the cutting speed is ensured, and the production efficiency is improved; the heat insulation pad is arranged between the heating sheet and the cutter bar, so that the external heat conduction of the heating sheet can be reduced, and the heat loss is reduced.

Drawings

Fig. 1 is a schematic view of a die cutting tool.

Detailed Description

Example 1

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the utility model provides a die cutting tool, which comprises a tool body 1 and a tool bar 2; the cutter body 1 is arranged on a mould, the mould comprises an upper mould 3 and a lower mould 4, and an upper mould core 5 is arranged on the upper mould 3; a lower die core 6 is arranged on the lower die 4; a die cavity 7 is formed between the upper die core 5 and the lower die core 6; the lower die 4 is provided with a cutter bar sliding groove 8 for installing the cutter bar 2; the cutter bar 2 is provided with an installation groove 9 for installing the cutter body; the length of the mounting groove 9 is one third to two thirds of the length of the cutter body 1; the cutter body 1 is fixed in the mounting groove 9, so that the mounting stability of the cutter body 1 is ensured, and the cutter body is not easy to break;

the knife body 1 comprises a knife edge 10 and a knife body 11; the blade 10 is arranged above the blade body 11; the connecting part of the product and the water gap material is just opposite; the side surface of the upper end of the cutting edge is arc-shaped.

The ball is arranged in the cutter bar sliding groove, so that the movement stability of the cutter bar can be enhanced through the arrangement of the sliding groove, the occurrence of cutter clamping is avoided, and the service efficiency and the service life of the die are effectively improved;

the lower part of the cutter body 1 is provided with a heating sheet 12, and the heating sheet is made of copper-nickel alloy. The heating sheet 12 surrounds the cutter body 1, so that the cutter is uniformly heated and conducts heat to the cutting edge 10, when the heated cutting edge cuts a product, the cutting quality is ensured, the cut product is free from burr, the cutting speed of the cutter is ensured in the cutting process, and the production efficiency is improved; a heat insulation pad 13 is arranged between the heating sheet and the cutter bar; the heat insulation pad 13 is made of glass fiber; the heat conduction of the heating plate to the outside can be reduced, thereby reducing the heat loss.

The lower die 3 is fixed with a baffle 14, a limiting plate 15 is fixed to the side face of the cutter rod 2, an elastic pad 16 is arranged above the limiting plate 15, the elastic pad 16 is in soft contact with the baffle 14 firstly in the ascending process of the cutter rod 2, and the baffle gives a reaction force to the limiting plate 15 during contact, so that the cutter body slowly seals the water gap, and the influence on product quality caused by instantaneous quick sealing of the cutter body to the water gap is avoided.

During the shaping, go up mould and lower mould compound die, go up and form the die cavity between mould benevolence and the lower mould benevolence, during the molten plastics pours into the die cavity, solidifies gradually and forms the product, the cutter arbor upward movement under drive arrangement drives, the cutter arbor rises in-process, and the cushion forms soft contact with the baffle earlier, and the baffle gives a reaction force for the limiting plate when the contact for the cutter body is to the slow closure of runner, and cuts off the mouth of a river.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A die cutting tool comprises a tool body and a tool bar; the cutter body is arranged on a mould, the mould comprises an upper mould and a lower mould, and an upper mould core is arranged on the upper mould; a lower die core is arranged on the lower die; a die cavity is formed between the upper die core and the lower die core; the lower die is provided with a cutter bar sliding groove for mounting a cutter bar; the cutter bar is provided with an installation groove for installing the cutter body; the knife body comprises a knife edge and a knife body; the knife edge is arranged above the knife body; the heating sheet is arranged at the lower part of the cutter body and surrounds the cutter body, and a heat insulation pad is arranged between the heating sheet and the cutter bar; the lower die is fixedly provided with a baffle plate, a limiting plate is fixedly arranged on the side face of the cutter bar, and an elastic pad is arranged above the limiting plate.

2. The die cutting tool according to claim 1 wherein said blade edge upper end side is arcuate.

3. The die cutting tool according to claim 1, wherein the mounting groove has a length of one-third to two-thirds of a length of the tool body.

4. The die cutting tool according to claim 1 wherein the thermal insulating mat is fiberglass.

5. The die cutting tool of claim 1 wherein said knife bar slide has a ball bearing disposed therein.

6. The die cutting tool of claim 1 wherein said heater plate is a copper nickel alloy.