CN215882455U

CN215882455U - Mould with novel thimble structure

Info

Publication number: CN215882455U
Application number: CN202121379767.1U
Authority: CN
Inventors: 黎建华
Original assignee: Shenzhen Wanlide Electronics Co ltd
Current assignee: Shenzhen Wanlide Electronics Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-02-22
Anticipated expiration: 2031-06-21

Abstract

The utility model provides a die with a novel thimble structure, which relates to the technical field of dies and comprises a panel, an upper die plate, a lower die plate, a bottom plate and two supporting plates, wherein the upper die plate is arranged on the lower surface of the panel, and the lower die plate is arranged on the lower surface of the upper die plate; the supporting plate is arranged between the lower surface of the lower template and the upper surface of the bottom plate; an ejector pin plate is arranged between the two supporting plates, and a plurality of ejector pins are arranged on the ejector pin plate; the thimble comprises a first thimble rod, a second thimble rod and a third thimble rod, the bottom end of the first thimble rod is fixed on the thimble plate, the top end of the first thimble rod is fixedly connected with the bottom end of the second thimble rod, and the top end of the second thimble rod is provided with a limit groove for accommodating the bottom end of the third thimble rod, so that the bottom end of the third thimble rod can rotate in the limit groove; the top end of the third ejector pin rod is located in the forming cavity and used for ejecting out a formed product, so that the impact force on the ejector pin is reduced, and the service life of the ejector pin is prolonged.

Description

Mould with novel thimble structure

Technical Field

The utility model relates to the technical field of dies, in particular to a die with a novel thimble structure.

Background

The die and various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production are widely used for blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting, and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. When the mold is used for injection molding, a molded product needs to be ejected out of the mold through the ejector pins, so that the injection molding process is completed, the ejector pins are easily broken due to overlarge impact force due to frequent ejection actions, the use of the mold is influenced, the impact on the ejector pins is reduced, the service life of the ejector pins is prolonged, and the problem that needs to be solved urgently in the use of the mold is solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a die with a novel thimble structure.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a mould with novel thimble structure, its improvement lies in: the upper template is arranged on the lower surface of the panel, and the lower template is arranged on the lower surface of the upper template; the supporting plate is arranged between the lower surface of the lower template and the upper surface of the bottom plate; an ejector pin plate is arranged between the two supporting plates, and a plurality of ejector pins are arranged on the ejector pin plate; an upper die core plate is arranged in the upper die plate, a lower die core plate is arranged in the lower die plate, the lower surface of the upper die core plate is connected with the upper surface of the lower die core plate, and a forming cavity is formed between the upper die core plate and the lower die core plate; the thimble comprises a first thimble rod, a second thimble rod and a third thimble rod, the bottom end of the first thimble rod is fixed on the thimble plate, the top end of the first thimble rod is fixedly connected with the bottom end of the second thimble rod, and the top end of the second thimble rod is provided with a limit groove for accommodating the bottom end of the third thimble rod, so that the bottom end of the third thimble rod can rotate in the limit groove; the top end of the third ejector pin rod is positioned in the forming cavity and used for ejecting the formed product.

In the structure, the bottom end of the third thimble rod is a cylinder, correspondingly, the limiting groove is also a cylinder, and the size of the limiting groove is matched with that of the cylinder; the curved surface of the cylinder rotates in the limiting groove.

In the above structure, in the process that the third ejector pin rod extends towards the cylinder in a transitional manner, the section of the third ejector pin rod is gradually reduced, so that the third ejector pin rod is convenient to rotate.

In the above structure, notches are symmetrically provided at the notches of the limit grooves, and symmetrical inclined planes are formed on the top end of the second ejector pin rod, which facilitates the rotation of the third ejector pin rod on the top end of the second ejector pin rod.

In the above structure, the center of the panel is provided with the injection port.

In the structure, a flow passage is further arranged between the upper die core plate and the lower die core plate and is used for communicating the injection port with the forming cavity.

In the above structure, the side wall of the panel is provided with an inwardly recessed notch.

In the structure, the lower surface of the upper template and the upper surface of the lower template are both provided with grooves, the upper die core plate is embedded in the grooves of the upper template, and the lower die core plate is embedded in the grooves of the lower template.

In the above structure, the sidewall of the upper mold core plate is provided with a notch, and the lower mold core plate is provided with a projection corresponding to the notch for positioning the upper mold core plate and the lower mold core plate.

The utility model has the beneficial effects that: the third ejector pin rod rotates on the top end of the second ejector pin rod, so that the ejector pin is buffered in the process of ejecting a molded product, the impact force on the ejector pin is reduced, the ejector pin is prevented from being broken, and the service life of the ejector pin is prolonged.

Drawings

Fig. 1 is a schematic overall structure diagram of a mold with a novel thimble structure according to the present invention.

Fig. 2 is an exploded pictorial illustration of fig. 1.

Fig. 3 is a schematic structural diagram of the thimble shown in fig. 2.

Fig. 4 is an enlarged schematic view of the spacing groove of fig. 3.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the utility model can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1, 2 and 3, the utility model discloses a die with a novel thimble structure, which comprises a panel 1, an upper die plate 2, a lower die plate 3, a bottom plate 4 and two support plates 5, wherein the upper die plate 2 is arranged on the lower surface of the panel 1, the lower die plate 3 is arranged on the lower surface of the upper die plate 2, and the support plates 5 are arranged between the lower surface of the lower die plate 3 and the upper surface of the bottom plate 4; an ejector pin plate 6 is also arranged between the two supporting plates 5, and a plurality of ejector pins 7 are arranged on the ejector pin plate 6; a filling port 8 is formed in the center of the panel 1, an upper mold core plate 9 is arranged in the upper mold plate 2, a lower mold core plate 10 is arranged in the lower mold plate 3, the lower surface of the upper mold core plate 9 is connected with the upper surface of the lower mold core plate 10, and a forming cavity 11 is formed between the upper mold core plate 9 and the lower mold core plate 10; a flow passage is also arranged between the upper die core plate 9 and the lower die core plate 10 and is used for communicating the injection port 8 with the molding cavity 11; during injection molding, an injection molding blank enters a flow channel through a filling port 8 and enters a molding cavity 11 through a discharge port of the flow channel, so that the blank is molded in a corresponding three-dimensional shape, then a molded product is ejected out of a mold through an ejector pin 7, the ejector pin 7 comprises a first ejector pin rod 12, a second ejector pin rod 13 and a third ejector pin rod 14, the bottom end of the first ejector pin rod 12 is fixed on an ejector pin plate 6, the top end of the first ejector pin rod 12 is fixedly connected with the bottom end of the second ejector pin rod 13, the top end of the second ejector pin rod 13 is provided with a limiting groove 15 for accommodating the bottom end of the third ejector pin rod 14, so that the bottom end of the third ejector pin rod 14 can rotate in the limiting groove 15, the top end of the third ejector pin rod 14 is positioned in the molding cavity, and the molded product is ejected out of the mold, so that injection molding is completed; the bottom end of the third thimble rod 14 rotates in the limit groove 15, so that the buffer of the thimble 7 in the process of ejecting a formed product is formed, the impact force on the thimble 7 is reduced, the thimble 7 is prevented from being broken, and the service life of the thimble 7 is prolonged.

Further, as shown in fig. 3 and 4, the bottom end of the third thimble rod 14 is a cylinder 16, and correspondingly, the limiting groove 15 is also cylindrical, and the size of the limiting groove 15 matches the size of the cylinder 16; the curved surface of the cylinder 16 rotates in the limit groove 15, so that the bottom end of the third thimble rod 14 can rotate in the limit groove 15 of the second thimble rod 13 more easily, and the buffer to the thimble 7 is formed.

Further, as shown in fig. 3 and 4, during the transition of the third ejector pin 14 to the cylinder 16, the section of the third ejector pin 14 is gradually reduced, and notches are symmetrically arranged at the notches of the limiting grooves 15, so that a symmetrically inclined surface 17 is formed at the top end of the second ejector pin 13, so that the third ejector pin 14 has more space for rotating relative to the second ejector pin 13, and the third ejector pin 14 can conveniently rotate on the top end of the second ejector pin 13.

Referring to fig. 2, grooves are formed in the lower surface of the upper template 2 and the upper surface of the lower template 3, the upper mold core plate 9 is embedded in the groove of the upper template 2, and the lower mold core plate 10 is embedded in the groove of the lower template 3; furthermore, a notch 18 is arranged on the side wall of the upper core plate 9, and a lug 19 corresponding to the notch 18 is arranged on the lower core plate 10, so that the upper core plate 9 and the lower core plate 10 can be conveniently positioned; referring to fig. 1, an inwardly recessed notch 20 is formed in a side wall of the panel 1, so as to facilitate the mold opening operation.

According to the die with the novel thimble structure, the third thimble rod rotates on the top end of the second thimble rod, so that the thimble is buffered in the process of ejecting a formed product, the impact force on the thimble is reduced, the thimble is prevented from being broken, and the service life of the thimble is prolonged.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a mould with novel thimble structure which characterized in that: the upper template is arranged on the lower surface of the panel, and the lower template is arranged on the lower surface of the upper template; the supporting plate is arranged between the lower surface of the lower template and the upper surface of the bottom plate; an ejector pin plate is arranged between the two supporting plates, and a plurality of ejector pins are arranged on the ejector pin plate;

an upper die core plate is arranged in the upper die plate, a lower die core plate is arranged in the lower die plate, the lower surface of the upper die core plate is connected with the upper surface of the lower die core plate, and a forming cavity is formed between the upper die core plate and the lower die core plate;

the thimble comprises a first thimble rod, a second thimble rod and a third thimble rod, the bottom end of the first thimble rod is fixed on the thimble plate, the top end of the first thimble rod is fixedly connected with the bottom end of the second thimble rod, and the top end of the second thimble rod is provided with a limit groove for accommodating the bottom end of the third thimble rod, so that the bottom end of the third thimble rod can rotate in the limit groove;

the top end of the third ejector pin rod is positioned in the forming cavity and used for ejecting the formed product.

2. The mold with the novel ejector pin structure as claimed in claim 1, wherein: the bottom end of the third thimble rod is a cylinder, correspondingly, the limiting groove is also cylindrical, and the size of the limiting groove is matched with that of the cylinder;

the curved surface of the cylinder rotates in the limiting groove.

3. The mold with the novel ejector pin structure as claimed in claim 2, wherein: and in the process that the third ejector pin rod extends towards the cylinder in a transition manner, the section of the third ejector pin rod is gradually reduced, so that the third ejector pin rod is convenient to rotate.

4. The mold with the novel ejector pin structure as claimed in claim 3, wherein: notches are symmetrically arranged at the notches of the limiting grooves, symmetrical inclined planes are formed at the top end of the second ejector pin rod, and the inclined planes are convenient for the third ejector pin rod to rotate at the top end of the second ejector pin rod.

5. The mold with the novel ejector pin structure as claimed in claim 1, wherein: and the center of the panel is provided with a feeding port.

6. The mold with the novel ejector pin structure as claimed in claim 5, wherein: and a flow passage is also arranged between the upper die core plate and the lower die core plate and is used for communicating the injection port with the forming cavity.

7. The mold with the novel thimble structure according to claim 5 or 6, wherein: and the side wall of the panel is provided with an inwards concave notch.

8. The mold with the novel ejector pin structure as claimed in claim 7, wherein: the lower surface of cope match-plate pattern and the upper surface of lower bolster all are equipped with the recess, upper die benevolence board inlays in the recess of cope match-plate pattern, lower die benevolence board inlays in the recess of lower bolster.

9. The mold with the novel ejector pin structure as claimed in claim 8, wherein: the side wall of the upper die core plate is provided with a notch, and the lower die core plate is provided with a lug corresponding to the notch and used for positioning the upper die core plate and the lower die core plate.