CN215619734U

CN215619734U - Transverse cutting structure in mould

Info

Publication number: CN215619734U
Application number: CN202121762189.XU
Authority: CN
Inventors: 盛伟军
Original assignee: Dongguan Topview Plastic Mfg Co ltd
Current assignee: Dongguan Topview Plastic Mfg Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-25
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field of dies, in particular to an in-die transverse cutting structure which comprises a die frame, a die core, a cutting part and a cutting driving part, wherein the die core is arranged in the die frame, the die core is provided with a flow passage, a through hole communicated with the flow passage is arranged in the die core, the shape of the through hole is matched with that of the cutting part, the cutting part is in sliding connection with the side wall of the through hole, one side of the cutting part, which is close to the flow passage, is provided with an inclined plane, and a pouring gate is formed at the connection part of the through hole and the flow passage; the cutting-off driving part is arranged on the die carrier, and the cutting-off part is arranged at the output end of the cutting-off driving part. The utility model aims to provide an in-mold transverse cutting structure, which solves the problems that material scraps are easy to generate at a cutting sprue and the cutting effect is poor after a cutter is passivated.

Description

Transverse cutting structure in mould

Technical Field

The utility model relates to the technical field of molds, in particular to an in-mold transverse cutting structure.

Background

The existing thermoplastic forming die adopts in-die sprue shearing, so that the forming speed of a product can be greatly reduced, and the cost for additionally developing and shearing the sprue is saved. At present, a cutter is adopted to cut off a pouring gate in a more mode, but the mode is easy to generate material scraps, and the cutting effect after a knife edge is passivated is poor.

Disclosure of Invention

In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide an in-mold transverse cutting structure which solves the problems that material scraps are easy to generate in a cutting sprue and the cutting effect is poor after a cutter is passivated.

The utility model is realized by the following technical scheme:

an in-mold transverse cutting structure comprises a mold frame, a mold core, a cutting part and a cutting driving part, wherein the mold core is arranged in the mold frame, the mold core is provided with a flow channel, a through hole communicated with the flow channel is formed in the mold core, the shape of the through hole is matched with that of the cutting part, the cutting part is in sliding connection with the side wall of the through hole, an inclined plane is arranged on one side, close to the flow channel, of the cutting part, and a pouring gate is formed at the connection position of the through hole and the flow channel; the cutting-off driving part is arranged on the die carrier, and the cutting-off part is arranged at the output end of the cutting-off driving part.

Wherein, the cutting driving piece is an oil cylinder.

Wherein, the inclined plane is 30 degrees with the terminal surface of cutting off the piece between the contained angle.

The end face of the cutting part is in a semicircular end face or a rectangular end face with a guide angle.

The utility model has the beneficial effects that:

the problem of cut off the runner and produce the material bits easily and cut off the effect variation after the cutter passivation is solved: according to the in-mold transverse cutting structure, the colloid is injected into the mold, and the cutting driving piece is cut off to drive the cutting piece to retreat so that the sprue is communicated with the runner; after the product in the mold is molded, the cutting driving part is driven to apply pressure to the sprue direction, so that the sprue is extruded and broken, the product is separated from the runner, and cutting is completed. Compared with the traditional cutting mode, the utility model does not need cutting action, so that no material scraps are generated; meanwhile, due to the fact that pressure breaking is adopted instead of cutting, passivation of cut parts cannot happen, and therefore the problem that cutting effect is poor cannot happen.

Drawings

The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is an enlarged view of the area a in fig. 1.

Reference numerals

The mold comprises a mold frame-100, a mold core-200, a runner-201, a through hole-202, a sprue-203, a cutting part-300, a cutting driving part-301 and an inclined surface-302.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1 and fig. 2, an in-mold transverse cutting structure includes a mold base 100, a mold core 200 disposed in the mold base 100, a cutting member 300, and a cutting driving member 301, wherein the mold core 200 is provided with a flow channel 201, a through hole 202 communicated with the flow channel 201 is disposed in the mold core 200, the shape of the through hole 202 is adapted to the shape of the cutting member 300, the cutting member 300 is slidably connected to a side wall of the through hole 202, an inclined surface 302 is disposed on a side of the cutting member 300 close to the flow channel 201, and a gate 203 is formed at a connection position of the through hole 202 and the flow channel 201; the cutting driving member 301 is disposed on the mold frame 100, and the cutting member 300 is disposed on an output end of the cutting driving member 301.

Specifically, according to the in-mold transverse cutting structure, colloid is injected into the mold, and the cutting driving part 301 drives the cutting part 300 to retreat so that the sprue 203 is communicated with the runner 201; after the in-mold product is molded, the cutting driving member 301 drives the cutting member 300 to apply pressure to the gate 203, so that the gate 203 is squeezed and broken, the product is separated from the runner 201, and the cutting is completed. Compared with the traditional cutting mode, the utility model does not need cutting action, so that no material scraps are generated; meanwhile, since press-cutting is adopted instead of cutting, the cut piece 300 is not passivated, and the problem of poor cutting effect is avoided.

Specifically, the cut-off driving member 301 is an oil cylinder, which can be selected according to the requirement of output force, and can also realize point-to-point driving.

Specifically, the included angle between the inclined surface 302 and the end surface of the cutting part 300 is 30 degrees, most of redundant plastic can be extruded into the runner 201 in the extrusion process, and the extrusion resistance is reduced.

Specifically, the end face of the cutting member 300 is in the shape of a semicircular end face or a rectangular end face with a chamfer. Because general cutter terminal surface shape is the rectangle generally, the rectangle cutter discovery edges and corners department wearing and tearing are very fast in actual production, easily appear deckle edge, and the design of the terminal surface that will cut off piece 300 is semi-circular terminal surface or rectangle and adds the angle effect of the angle of lead terminal surface better, the deckle edge is difficult for appearing.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an in-mould transverse cutting structure, includes die carrier (100) and locates mould benevolence (200) in die carrier (100), mould benevolence (200) are equipped with runner (201), its characterized in that: the mold comprises a mold core (200), and is characterized by further comprising a cutting part (300) and a cutting driving part (301), wherein a through hole (202) communicated with the flow channel (201) is formed in the mold core (200), the shape of the through hole (202) is matched with that of the cutting part (300), the cutting part (300) is in sliding connection with the side wall of the through hole (202), an inclined plane (302) is arranged on one side, close to the flow channel (201), of the cutting part (300), and a pouring gate (203) is formed at the connection position of the through hole (202) and the flow channel (201);

the cutting driving part (301) is arranged on the die carrier (100), and the cutting part (300) is arranged at the output end of the cutting driving part (301).

2. An in-mold crosscut structure according to claim 1, wherein: the cutting driving piece (301) is an oil cylinder.

3. An in-mold crosscut structure according to claim 1, wherein: the included angle between the inclined surface (302) and the end surface of the cutting part (300) is 30 degrees.

4. An in-mold crosscut structure according to claim 1, wherein: the end face of the cutting part (300) is in a semicircular end face or a rectangular end face with a guide angle.