CN211891810U

CN211891810U - Secondary ejection anti-deformation mold

Info

Publication number: CN211891810U
Application number: CN202020303235.9U
Authority: CN
Inventors: 干相泉; 胡成涛; 赵军; 陆浩伟
Original assignee: Wujiang Xinyu Precision Mould Co ltd
Current assignee: Wujiang Xinyu Precision Mould Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-11-10
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to a secondary ejection anti-deformation die, which comprises a lower die plate, a lower die core, a thimble backing plate, a thimble bottom plate and a nozzle thimble, wherein the lower die core is positioned in the lower die plate, the thimble backing plate is positioned at the upper end of the thimble bottom plate, the bottom end of the nozzle thimble is connected with the thimble backing plate, and the top end of the nozzle thimble penetrates through the lower die plate and is inserted into the lower die core; the anti-deformation ejector pin is characterized by also comprising an ejector block, a material channel insert and an anti-deformation ejector pin; the top block is provided with a cushion block, and the cushion block is connected with the water gap thimble and movably arranged in a bottom groove of the thimble base plate; the material is said and is led to the mold insert and is located the lower mould benevolence, it is provided with the arc and glues and says to say the mold insert to expect, the bottom and the thimble backing plate of preapring for an unfavorable turn of events shape thimble are connected, the top runs through lower bolster and lower mould benevolence. The utility model relates to an ejecting shape mould of preapring for an unfavorable turn of events of secondary improves through constructing the mould inside, pushes out the separation that realizes stub bar and product through the secondary to provide the support to buckle portion, avoid buckle portion to appear warping.

Description

Secondary ejection anti-deformation mold

Technical Field

The utility model relates to a mould structure, concretely relates to ejecting shape mould of preapring for an unfavorable turn of events of secondary.

Background

A battery is often used as a power source for a remote controller of a home appliance. The battery compartment on the remote controller needs to be matched with the battery compartment cover for use.

The battery compartment cover and the remote controller shell are mostly made of plastic materials and are mainly formed by injection molding through an injection mold.

The battery compartment cover generally uses a buckle structure to realize blocking and opening, so that the battery compartment cover is required to be provided with a buckle part formed by injection molding.

In order to ensure the molding quality of the clamping part, the glue inlet of the cavity of the injection mold is usually arranged at the position of the clamping part of the battery compartment cover. However, after cooling and forming, the stub bar is connected with the buckling part; when the stub bar is separated in the die, the buckling part can be pulled and deformed, and the battery compartment cover can not be blocked on the shell of the remote controller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a secondary is ejecting to be preapred for an unfavorable turn of events shape mould improves through the structure to mould inner structure, and ejection through the secondary realizes the separation of stub bar and product to provide the support to buckle portion, avoid buckle portion to appear warping.

In order to achieve the above object, the present invention provides the following technical solutions:

a secondary ejection anti-deformation die comprises a lower die plate, a lower die core, an ejector pin base plate and a water gap ejector pin, wherein the lower die core is positioned in the lower die plate, the ejector pin base plate is positioned at the upper end of the ejector pin base plate, the bottom end of the water gap ejector pin is connected with the ejector pin base plate, and the top end of the water gap ejector pin penetrates through the lower die plate and is inserted into the lower die core; the anti-deformation ejector pin is characterized by also comprising an ejector block, a material channel insert and an anti-deformation ejector pin; the top block is provided with a cushion block, and the cushion block is connected with the water gap thimble and movably arranged in a bottom groove of the thimble base plate; the material is said and is led to the mold insert and is located the lower mould benevolence, it is provided with the arc and glues and says to say the mold insert to expect, the bottom and the thimble backing plate of preapring for an unfavorable turn of events shape thimble are connected, the top runs through lower bolster and lower mould benevolence.

Furthermore, the ejector block is movably arranged in the through groove in the middle of the ejector pin bottom plate, and the cushion block is connected with the ejector block.

Furthermore, the arc-shaped rubber channel on the material channel insert is arc-shaped and gradually narrows from one end close to the water gap thimble to one end far away from the water gap thimble.

Further, the deformation-preventing thimble is parallel to the water gap thimble, and the top end of the deformation-preventing thimble corresponds to the position of one end of the arc-shaped rubber channel far away from the water gap thimble.

The utility model has the advantages that: the utility model provides a secondary is ejecting to be preapred for an unfavorable turn of events shape mould, improves through the structure to mould inside, adds kicking block, cushion, material way mold insert and the shape thimble of preapring for an unfavorable turn of events, realizes the separation of stub bar and product through the ejecting action of secondary to preapring for an unfavorable turn of events shape thimble provides the support to the clamping part of battery storehouse lid product, avoids clamping part to appear warping, thereby guarantees the product quality of the battery storehouse lid of moulding plastics out, avoids appearing the bad phenomenon that the battery storehouse lid can not block and die on the shell of remote controller.

Drawings

Fig. 1 is the utility model relates to a three-dimensional structure schematic diagram of a secondary ejection deformation-preventing mold.

Fig. 2 is the utility model relates to a section structure schematic diagram of the ejecting shape mould of preapring for an unfavorable turn of events of secondary.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In order to avoid the serious influence of the cutting line on the structure of the checking mould, the cutting line is only punched on the battery cover product and the stub bar.

In the figure: 1. a lower template; 2. a lower die core; 3. a thimble base plate; 4. a thimble base plate; 5. a water gap thimble; 6. a top block; 7. cushion blocks; 8. a bottom recess; 9. a material channel insert; 91. an arc-shaped rubber channel; 10. an anti-deformation thimble; 11. a battery cover product; 111. a fastening part; 12. and (4) material head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 3, a secondary ejection anti-deformation mold comprises a lower template 1, a lower mold core 2, an ejector pin cushion plate 3, an ejector pin bottom plate 4 and a nozzle ejector pin 5, wherein the lower mold core 2 is located in the lower template 1, the ejector pin cushion plate 3 is located at the upper end of the ejector pin bottom plate 4, the bottom end of the nozzle ejector pin 5 is connected with the ejector pin cushion plate 3, the top end of the nozzle ejector pin 5 penetrates through the lower template 1 and is inserted into the lower mold core 2, and the nozzle ejector pin 5 is used for ejecting a stub bar 12 in a mold hot runner to realize demolding and blanking of the stub bar; the anti-deformation ejector pin comprises an ejector block 6, a material channel insert 9 and an anti-deformation ejector pin 10; the top block 6 is provided with a cushion block 7, and the cushion block 7 is connected with the water gap thimble 5 and movably arranged in a bottom groove 8 of the thimble base plate 3; the material says that mold insert 9 is located lower mould benevolence 2, be provided with arc glue way 91 on saying the mold insert 9, arc glue way 91 is used as the passageway that the raw materials flowed into the die cavity from the runner, the bottom and the ejector pin backing plate 3 of preapring for an unfavorable turn of events shape thimble 10 are connected, the top runs through lower bolster 1 and lower mould benevolence 2, preapring for an unfavorable turn of events shape thimble 10 is used for propping up the clamping part 111 of battery cover product 11 from the bottom to avoid clamping part 111 to take place to warp.

The ejector block 6 is movably arranged in the through groove in the middle of the ejector pin base plate 4, the cushion block 7 is connected with the ejector block 6, and the cushion block 7 is used for fixing the water gap ejector pin 5.

The arc-shaped rubber channel 91 on the material channel insert 9 is arc-shaped and gradually narrows from one end close to the water gap thimble 5 to one end far away from the water gap thimble 5, so that the material head 12 is ensured to be smoothly disconnected from the clamping part 111, and the material head 12 can be ensured to be drawn out from the arc-shaped rubber channel 91.

The deformation-preventing thimble 10 is parallel to the water gap thimble 5, and the top end of the deformation-preventing thimble 10 corresponds to the position of one end of the arc-shaped rubber channel 91 far away from the water gap thimble 5.

The utility model discloses a theory of operation does: during injection molding, the raw material in a molten state is injected into an injection mold from an injection molding machine, flows in a hot runner, enters an arc-shaped rubber channel 91 of a material channel insert 9 through a flow channel on a lower mold core 2, and enters and fills a cavity of the injection mold in the reddest state; after cooling and forming, forming a battery cover product 11 and a stub bar 12, and starting to open the die; firstly, the injection molding machine pushes a top block 6 protruding from the bottom of a thimble base plate 4, the top block 6 and a cushion block 7 push a water gap thimble 5 upwards, a stub bar 12 is pushed upwards, in the pushing process, the position where the stub bar 12 is connected with a buckling part 111 of a battery cover product 11 is broken, at the moment, a deformation-preventing thimble 10 firmly supports and props against the bottom end of the buckling part 111, and therefore the buckling part 111 is prevented from being pulled and deformed by the stub bar 12; after the stub bar 12 is separated from the buckling part 111, the part of the stub bar 12 positioned in the arc-shaped rubber channel 91 is jacked up along with the whole stub bar 12, so that demoulding is realized; then the injection molding machine pushes the thimble bottom plate 4, the deformation-preventing thimble 10 starts to push out the buckling part 111 of the battery cover product 11 upwards, and the battery cover product 11 is integrally pushed out by matching with other thimbles, so that demoulding and blanking are realized.

The above examples are provided for further illustration of the present invention, but do not limit the present invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A secondary ejection anti-deformation die comprises a lower die plate (1), a lower die core (2), an ejector pin base plate (3), an ejector pin base plate (4) and a water gap ejector pin (5), wherein the lower die core (2) is positioned in the lower die plate (1), the ejector pin base plate (3) is positioned at the upper end of the ejector pin base plate (4), the bottom end of the water gap ejector pin (5) is connected with the ejector pin base plate (3), and the top end of the water gap ejector pin (5) penetrates through the lower die plate (1) and is inserted into the lower die core (2); the method is characterized in that: the anti-deformation ejector pin is characterized by also comprising an ejector block (6), a material channel insert (9) and an anti-deformation ejector pin (10); the ejector block (6) is provided with a cushion block (7), and the cushion block (7) is connected with the water gap ejector pin (5) and movably arranged in a bottom groove (8) of the ejector pin base plate (3); the material channel insert (9) is located in the lower die core (2), an arc-shaped rubber channel (91) is arranged on the material channel insert (9), the bottom end of the anti-deformation thimble (10) is connected with the thimble pad (3), and the top end of the anti-deformation thimble (10) penetrates through the lower die plate (1) and the lower die core (2).

2. The secondary ejection deformation-preventing die as claimed in claim 1, wherein: the ejector block (6) is movably arranged in the through groove in the middle of the ejector pin bottom plate (4), and the cushion block (7) is connected with the ejector block (6).

3. The secondary ejection deformation-preventing die as claimed in claim 2, wherein: the arc-shaped rubber channel (91) on the material channel insert (9) is arc-shaped and gradually narrows from one end close to the water gap thimble (5) to one end far away from the water gap thimble (5).

4. The secondary ejection deformation-preventing die as claimed in claim 3, wherein: the deformation-preventing thimble (10) is parallel to the water gap thimble (5), and the top end of the deformation-preventing thimble (10) corresponds to the position of one end, away from the water gap thimble (5), of the arc-shaped rubber channel (91).