CN212124063U

CN212124063U - Cutting device

Info

Publication number: CN212124063U
Application number: CN201922272862.0U
Authority: CN
Inventors: 周良; 许忠平
Original assignee: Zhejiang Baikang Optical Co ltd
Current assignee: Zhejiang Baikang Optical Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-12-11
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a cutting equipment technical field provides a cutting device, include: first die assembly; the second die assembly is arranged opposite to the first die assembly, a plurality of die cavities and water gaps communicated with the die cavities are formed between the second die assembly and the first die assembly, and materials for forming products are injected into the die cavities through the water gaps; the ejection pin is arranged on the second die assembly and used for being inserted into and withdrawn from the space between the water gap and the cavity; the utility model provides a cutting device has following advantage: the ejection pin can cut the stub bar between the cavity and the water gap, so that the stub bar is prevented from being adhered after the product is finished, and the attractiveness is prevented from being influenced; meanwhile, the ejector pin can be operated when the mold is closed between the first mold closing and the second mold closing, the operation is simple, and the production efficiency can be improved; in addition, the mechanical ejection mechanism is adopted in the embodiment to control the action of the material cutting head in the die, so that the appearance problem caused by oil stain caused by the adoption of oil cylinder control in the prior art is avoided, and the appearance quality requirement of the product is ensured.

Description

Cutting device

Technical Field

The utility model relates to a cutting equipment technical field, more specifically say, relate to a cutting device.

Background

When an existing manufacturer produces an optical lens made of PC (Polycarbonate), a mold of a product is opened according to 1 × 16 holes according to market demands, namely 16 cavities are formed in the same mold, and glue is fed from the side of a hot runner to a large water inlet in a glue feeding mode. When the finished product is ejected, the stub bar can be remained, the finished product needs to be cut off by using shearing pliers manually, and each row of products needs to be cut by using a rubber opening manually for 16 times, so that the production efficiency is greatly reduced, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutting device to solve the stub bar cutting technical problem that wastes time and energy that exists among the prior art.

In order to achieve the above object, the utility model discloses a technical scheme is a cutting device, include:

first die assembly;

the second die assembly is arranged opposite to the first die assembly, a plurality of die cavities and water gaps communicated with the die cavities are formed between the second die assembly and the first die assembly, and materials for forming products are injected into the die cavities through the water gaps; and

and the ejection pin is arranged on the second die assembly and used for being inserted and withdrawn between the water gap and the cavity.

In one embodiment, the ejection surface of the ejection pin is an inclined surface, two sides of the inclined surface abut against the water gap and the cavity respectively, and the inclined surface intersects with the side surface of the ejection pin close to the cavity at an acute angle.

In one embodiment, the apex of the ejector pin is spaced a predetermined distance from the first clamp when not inserted between the gate and the cavity.

In one embodiment, the predetermined distance is 0.1mm to 0.4 mm.

In one embodiment, a first top plate is arranged at one end of the ejection pin far away from the cavity and used for driving the ejection pin to move for a preset distance.

In one embodiment, a second top plate is arranged at one end of the ejector pin far away from the cavity and is used for driving the ejector pin to extend between the water gap and the cavity

In one embodiment, the first top plate and the second top plate are stacked, and a top plate spring is disposed between the first top plate and the second top plate.

In one embodiment, a limiting frame is arranged on one side of the first mold closing, which is far away from the second mold closing, and a preset distance is reserved between the first top plate and the limiting frame.

In one embodiment, the top of the ejector pin is disposed between the first clamp die and the second clamp die.

In one embodiment, a plurality of the cavities are arranged in an array, and a plurality of the ejection pins are arranged in one-to-one correspondence with the cavities.

The utility model provides a cutting device's beneficial effect lies in:

the ejection pin can cut the stub bar between the cavity and the water gap, so that the stub bar is prevented from being adhered after the product is finished, and the attractiveness is prevented from being influenced; meanwhile, the ejector pin can be operated when the mold is closed between the first mold closing and the second mold closing, the operation is simple, and the production efficiency can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a cutting device provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of a cutting device provided in an embodiment of the present invention;

fig. 3 is an enlarged view of fig. 2 "a".

The figures are numbered:

a first die assembly-1;

a second die assembly-2;

an ejection pin-3; inclined plane-31;

a cavity-4;

a water gap-5;

a first top plate-6;

a second top plate-7;

a roof spring-8;

a limit frame-9.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention, and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:

as shown in fig. 1, an embodiment of the present invention provides a cutting device 10, including: a first mold clamping 1, a second mold clamping 2 and an ejector pin 3; the second die assembly 2 is arranged opposite to the first die assembly 1, a plurality of cavities 4 and water gaps 5 communicated with the cavities 4 are formed between the second die assembly 2 and the first die assembly 1, and materials for forming products are injected into the cavities 4 through the water gaps 5; and an ejector pin 3 provided on the second mold clamping 2, the ejector pin 3 being used for insertion and withdrawal between the gate 5 and the cavity 4.

The working principle of the cutting device 10 provided by the embodiment is as follows:

the optical lens of the embodiment is made of a PC material, and can be made of other meltable materials, and is injected into the cavity 4 from the water gap 5 to form a product after being hardened; specifically, the mold closing between the first mold closing 1 and the second mold closing 2 is carried out, glue is injected into the cavity 4 from the water gap 5, the product is subjected to injection molding, then the ejector pin 3 is inserted between the water gap 5 and the cavity 4, the stub bar is cut, the second mold closing 2 is opened, and the product is taken out from the first mold closing 1.

The cutting device 10 provided by the embodiment has the advantages that:

the ejection pin 3 can cut the stub bar between the cavity 4 and the water gap 5, so that the stub bar is prevented from being adhered after the product is finished, and the appearance is prevented from being influenced; meanwhile, the ejector pin 3 can be operated when the mold is closed between the first mold closing 1 and the second mold closing 2, the operation is simple, and the production efficiency can be improved; in addition, the mechanical ejection mechanism is adopted in the embodiment to control the action of the material cutting head in the die, so that the appearance problem caused by oil stain caused by the adoption of oil cylinder control in the prior art is avoided, and the appearance quality requirement of the product is ensured.

In one embodiment, the ejecting surface of the ejector pin 3 is an inclined surface 31, two sides of the inclined surface 31 respectively abut against the water gap 5 and the cavity 4, and the inclined surface 31 and the side surface of the ejector pin 3 close to the cavity 4 are intersected at an acute angle. It can be understood that the end of the ejector pin 3 for ejection is sharp, and the stub bar can be cut more easily by providing the sharp ejector pin 3; in addition, the inclined surface 31 of the ejector pin 3 is respectively abutted against the water gap 5 and the cavity 4, so that when the glue enters the cavity 4 from the water gap 5, the glue can be stably injected into the cavity 4 under the guiding action of the inclined surface 31, and the problems that the glue generates bubbles or is not well formed are avoided.

In one embodiment, the apex of the ejector pin 3 is spaced a predetermined distance from the first clamp 1 when not inserted between the gate 5 and the cavity 4. It can be understood that by reserving a preset distance, the ejector pin 3 is prevented from blocking between the nozzle 5 and the cavity 4, and meanwhile, the proper preset distance is reserved so that the glue can be smoothly injected into the cavity 4 from the nozzle 5.

In one embodiment, the predetermined distance is 0.1mm to 0.4 mm. Preferably, the predetermined distance is 0.3 mm. It will be appreciated that by setting this predetermined distance, a smooth flow of glue is obtained between the nozzle 5 and the cavity 4.

In one embodiment, the end of the ejector pin 3 away from the cavity 4 is provided with a first top plate 6, and the first top plate 6 is used for driving the ejector pin 3 to move for a preset distance.

Specifically, the ejection pin 3 is fixed on the first top plate 6, the first top plate 6 drives the ejection pin 3 to move, and a mechanical ejection mechanism is formed between the ejection pin 3 and the first top plate 6, so that the phenomenon that the ejection mechanism is formed by adopting oil cylinder driving like the prior art and is easy to pollute products is avoided.

In one embodiment, the end of the ejector pin 3 remote from the mold cavity 4 is provided with a second top plate 7, and the second top plate 7 is used for driving the ejector pin 3 to extend between the water gap 5 and the mold cavity 4 and continue to move.

Specifically, after the first top plate 6 drives the ejection pin 3 to cut the stub bar, the first die 1 is opened, and the second top plate 7 drives the ejection pin 3 to move continuously, so that after the ejection pin 3 cuts the stub bar, the product and the stub bar are respectively adhered to two sides of the ejection pin 3, and under the action of the adhesive force of the ejection pin 3, the ejection pin 3 separates the product and the stub bar from the water gap 5 and the die cavity 4, and then the product and the stub bar are convenient to take out by a manufacturer. At the moment, the product is placed on a conveyor belt by a mechanical arm to enter the next detection stage, and the stub bar is placed in a waste recovery box. The first mold closing 1 and the second mold closing 2 close the molds again and enter the next molding cycle.

In one embodiment, the first top plate 6 and the second top plate 7 are stacked, and the top plate spring 8 is disposed between the first top plate 6 and the second top plate 7. It can be understood that by providing the top plate spring 8 between the first top plate 6 and the second top plate 7, rigid connection between the first top plate 6 and the second top plate 7 is avoided, and it is easily damaged when the ejector pin 3 is driven.

In one embodiment, a limiting frame 9 is arranged on one side of the first die assembly 1 far away from the second die assembly 2, and the first top plate 6 is spaced from the limiting frame 9 by a preset distance. Specifically, the first top plate 6 is movable relative to the first die assembly 1, and the two limit frames 9 are fixed on the first die assembly 1, and it can be understood that by arranging the limit frames 9, when the first die assembly 1 is closed, the first top plate 6 drives the ejector pins 3 to move too much, so that the ejector pins 3 are inserted into the first die assembly 1, and the first die assembly 1 is damaged.

In one embodiment, the top of the ejector pin 3 is interposed between the first clamp 1 and the second clamp 2. It can be understood that, by accommodating the top of the ejector pin 3 between the first mold closing 1 and the second mold closing 2, the whole processes of injection molding and cutting the stub bar occur between the first mold closing 1 and the second mold closing 2, that is, during the mold closing process, the efficiency of product processing can be further improved.

In one embodiment, a plurality of cavities 4 are arranged in an array, and a plurality of ejector pins 3 are arranged in one-to-one correspondence to the cavities 4. It can be understood that the stub bar of a plurality of products can be cut simultaneously by arranging a plurality of ejector pins 3, and the processing efficiency is improved. Specifically, 16 cavities 4 are included, and 16 cavities 4 are arranged in an array of 4 by 4 or an array of 2 by 8, and the arrangement of the cavities 4 is determined by the shape of a product to be produced or the requirements of a jig.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A cutting device, comprising:

first die assembly;

2. The cutting device according to claim 1, wherein the ejection surface of the ejector pin is an inclined surface, both sides of the inclined surface abut against the gate and the cavity, respectively, and the inclined surface intersects with a side surface of the ejector pin close to the cavity at an acute angle.

3. The cutting apparatus of claim 1, wherein the apex of the ejector pin is spaced a predetermined distance from the first clamp when not inserted between the gate and the cavity.

4. A cutting device as claimed in claim 3, wherein the predetermined distance is 0.1mm to 0.4 mm.

5. The cutting device as claimed in claim 4, wherein an end of the ejector pin away from the cavity is provided with a first top plate for driving the ejector pin to move the preset distance.

6. The cutting apparatus as claimed in claim 5, wherein an end of the ejector pin remote from the cavity is provided with a second top plate for driving the ejector pin to extend between the nozzle and the cavity.

7. The cutting device of claim 6, wherein the first top plate and the second top plate are stacked with a top plate spring disposed therebetween.

8. The cutting device as claimed in claim 5, wherein a limiting frame is arranged on one side of the first die assembly, which is far away from the second die assembly, and the first top plate and the limiting frame are spaced by the preset distance.

9. The cutting apparatus of any one of claims 1-8, wherein the tops of the ejector pins are disposed between the first clamp and the second clamp.

10. The cutting apparatus as set forth in any one of claims 1 to 8, wherein a plurality of said cavities are arrayed, and a plurality of said ejector pins are disposed in one-to-one correspondence with said cavities.