CN213107986U

CN213107986U - Injection mold

Info

Publication number: CN213107986U
Application number: CN202021188714.7U
Authority: CN
Inventors: 南基学
Original assignee: Dongguan Yejia Electronic Technology Co ltd
Current assignee: Dongguan Yejia Electronic Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-05-04
Anticipated expiration: 2030-06-23

Abstract

The utility model provides an injection mold, including front mould, back mould, the front mould includes the front mould base, fixes the inboard front mould benevolence of front mould base, back mould includes back mould layer board, is located the back mould base of back mould layer board upside, fixes the back mould benevolence of back mould base upper end, be equipped with movable groove on the back mould benevolence, the activity inslot is equipped with the push pedal, back mould layer board upper end is connected with the mold insert, the mold insert upper end is passed the push pedal, front mould benevolence lower extreme is equipped with the die cavity, the mold insert upper end is located the die cavity is inboard, back mould layer board upper end still is connected with spacing screw, be equipped with the confession in the back mould base spacing hole of spacing screw activity. The utility model discloses an injection mold is applicable to the preparation and has the injection molding that hole and length are big, can release the drawing of patterns with the injection molding through two actions after the die sinking, and the injection molding drawing of patterns is effectual, and the drawing of patterns is efficient.

Description

Injection mold

Technical Field

The utility model relates to the technical field of mold, concretely relates to injection mold.

Background

The injection molding product is a common daily product, and is widely applied to the fields of household products, medical equipment, building materials, sports equipment and the like due to the advantages of light weight, high strength, good durability, strong assembly and the like. In the manufacturing process of injection molding products, plastic materials in a molten state are generally uniformly stirred by a screw extruder at a certain temperature, then injected into an injection mold, molded in a cavity of the injection mold, and cooled and solidified to obtain the molded injection molding products.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides an injection mold is applicable to the preparation and has the injection molding that hole and length are big, can release the drawing of patterns with the injection molding through two actions after the die sinking, and the injection molding drawing of patterns is effectual, and the drawing of patterns is efficient.

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

the utility model provides an injection mold, includes front mould, back mould, the front mould includes the front mould seat, fixes the inboard front mould benevolence of front mould seat, the back mould includes back mould layer board, is located the back mould seat of back mould layer board upside, fixes back mould benevolence of back mould seat upper end, be equipped with the movable groove on the back mould benevolence, the movable inslot is equipped with the push pedal, back mould layer board upper end is connected with the mold insert, the mold insert upper end passes the push pedal, front mould benevolence lower extreme is equipped with the die cavity, the mold insert upper end is located the die cavity is inboard, back mould layer board upper end still is connected with spacing screw, be equipped with the confession in the back mould seat the spacing.

Specifically, the limiting screw comprises a supporting rod part connected to the upper end of the rear mold supporting plate and a limiting part connected to the upper end of the supporting rod part, and the limiting hole is a stepped hole.

Specifically, the middle part of the upper end of the front mold core is provided with a main runner, the lower end of the main runner is provided with a sub-runner, and the sub-runner is communicated with the bottom of the mold cavity.

Specifically, a groove is formed in the upper end of the rear die base, and the rear die core is fixed in the groove.

Specifically, the lower end of the push plate is further connected with a push rod, and through holes for the push rod to move are formed in the rear die core, the rear die holder and the rear die supporting plate.

Specifically, the mold insert is including connecting back mould layer board upper end bracing piece, connection are in the core pulling of bracing piece upper end, the bracing piece outside is still overlapped and is equipped with the moulded shell, the moulded shell is fixed the back mould benevolence is inboard.

The utility model has the advantages that:

the utility model discloses an injection mold is applicable to the preparation and has the injection molding that hole and length are big, releases upwards through back die holder earlier behind the die sinking for loose core takes out from the injection molding, then utilizes the push rod to upwards release the push pedal, can release the drawing of patterns with the injection molding, and the injection molding drawing of patterns is effectual, and the drawing of patterns is efficient.

Drawings

Fig. 1 is a schematic structural view of an injection-molded part.

Fig. 2 is a top view of the injection mold of the present invention.

3 fig. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 the 3 plane 3 a 3- 3 a 3 in 3 fig. 3 2 3. 3

Fig. 4 is a schematic structural view of the middle push plate, the mold insert and the push rod of the present invention.

Fig. 5 is a three-dimensional structure diagram of the middle and rear molds of the present invention.

Fig. 6 is a top view of the middle and rear molds of the present invention.

Fig. 7 is a cross-sectional view taken along plane B-B of fig. 6.

Fig. 8 is the first structural schematic diagram of the middle and rear molds after being opened, at which time the rear mold base is pushed upwards, so that the core is drawn out from the injection molding piece.

Fig. 9 is the structure schematic diagram of the utility model discloses after well back mould die sinking two, the push rod upwards releases the push pedal this moment to it is ejecting with the injection molding.

The reference signs are: the injection molding machine comprises a front mold 1, a front mold base 11, a front mold core 12, a mold cavity 121, a rear mold 2, a rear mold supporting plate 21, a rear mold base 22, a limiting hole 221, a rear mold core 23, a push plate 3, an insert 4, a supporting rod 41, a loose core 42, a limiting screw 5, a supporting rod part 51, a limiting part 52, a main runner 61, a sub-runner 62, a push rod 7, a molding shell 8 and an injection molding part 9.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1-9:

the utility model provides an injection mold, including front mould 1, back mould 2, front mould 1 includes front mould seat 11, fix the front mould benevolence 12 in front mould seat 11 inboard, back mould 2 includes back mould layer board 21, be located the back mould seat 22 of back mould layer board 21 upside, fix back mould benevolence 23 in back mould seat 22 upper end, be equipped with the movable groove on the back mould benevolence 23, be equipped with push pedal 3 in the movable groove, back mould layer board 21 upper end is connected with mold insert 4, push pedal 3 is passed to mold insert 4 upper end, front mould benevolence 12 lower extreme is equipped with die cavity 121, the mold insert 4 upper end is located die cavity 121 inboard, in order to make back mould seat 22 have the direction limiting displacement at the removal process, back mould layer board 21 upper end still is connected with spacing screw 5, be equipped with the spacing hole.

Preferably, the limiting screw 5 comprises a supporting rod part 51 connected to the upper end of the rear mold supporting plate 21 and a limiting part 52 connected to the upper end of the supporting rod part 51, the outer diameter of the limiting part 52 is larger than that of the supporting rod part 51, the limiting hole 221 is a stepped hole, the hole diameter of an upper hole of the stepped hole is larger than that of a lower hole, and the rear mold base 22 has a guiding and limiting effect in the up-and-down moving process through the matching effect of the stepped hole and the limiting screw 5.

Preferably, the middle part of the upper end of the front mold core 12 is provided with a main runner 61, the lower end of the main runner 61 is provided with a sub-runner 62, the sub-runner 62 is communicated with the bottom of the mold cavity 121, the upper end of the main runner 61 is connected with a feed inlet, the feed inlet can be communicated with a discharge port of an injection molding machine, and fluid plastics generated by the injection molding machine can be conveyed to the mold cavity 121 through the main runner 61 and the sub-runner 62 for injection molding.

Preferably, the upper end of the rear die holder 22 is provided with a groove, and the rear die core 23 is fixed in the groove.

Preferably, the lower end of the push plate 3 is further connected with a push rod 7, through holes for the movement of the push rod 7 are formed in the rear mold core 23, the rear mold seat 22 and the rear mold supporting plate 21, the lower end of the push rod 7 can be connected to output shafts of driving devices such as an air cylinder or an electric cylinder, the push rod 7 can be pushed upwards under the driving action of the driving devices, and therefore the push plate 3 can eject the injection molding part 9 molded on the upper side.

Preferably, the insert 4 is designed according to the shape of the injection molding 9, and specifically includes a support rod 41 connected to the upper end of the rear mold supporting plate 21 and a core pulling 42 connected to the upper end of the support rod 41, the outer side of the support rod 41 is further sleeved with a mold shell 8, and the mold shell 8 is fixed to the inner side of the rear mold core 23.

The specific operation is as follows:

die assembly: the front mold 1 and the rear mold 2 are closed, the upper end of the main runner 61 is connected with a feed inlet, the feed inlet is communicated with a discharge port of an injection molding machine, fluid plastic prepared by the injection molding machine enters the cavity 121 through the main runner 61 and the sub-runner 62 to be injection molded, and the cavity 121 is cooled and solidified to obtain the injection molding part 9.

Opening the mold: the front mold 1 is moved upwards through a driving device such as an air cylinder or a mechanical hand, so that the front mold 1 and the rear mold 2 are opened, the injection molding part 9 is sleeved outside the loose core 42, the rear mold seat 22 is pushed upwards through the driving device such as the air cylinder or an electric cylinder, so that the loose core 42 is pulled out of the injection molding part 9, then the push plate 3 is pushed upwards through the push rod 7, the injection molding part 9 is pushed out, demolding is carried out, and the injection molding part 9 is taken out.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An injection mold is characterized by comprising a front mold (1) and a rear mold (2), the front die (1) comprises a front die holder (11) and a front die core (12) fixed on the inner side of the front die holder (11), the rear die (2) comprises a rear die supporting plate (21), a rear die holder (22) positioned on the upper side of the rear die supporting plate (21), and a rear die core (23) fixed at the upper end of the rear die holder (22), the rear die core (23) is provided with a movable groove, a push plate (3) is arranged in the movable groove, the upper end of the rear mould supporting plate (21) is connected with an insert (4), the upper end of the insert (4) penetrates through the push plate (3), the lower end of the front mold core (12) is provided with a mold cavity (121), the upper end of the insert (4) is positioned at the inner side of the mold cavity (121), the upper end of the rear die supporting plate (21) is also connected with a limiting screw (5), and a limiting hole (221) for the limiting screw (5) to move is formed in the rear die base (22).

2. An injection mold according to claim 1, wherein the limiting screw (5) comprises a supporting rod part (51) connected to the upper end of the rear mold supporting plate (21) and a limiting part (52) connected to the upper end of the supporting rod part (51), and the limiting hole (221) is a stepped hole.

3. An injection mold according to claim 1, characterized in that the front mold core (12) is provided with a main runner (61) at the upper middle part, the lower end of the main runner (61) is provided with a sub-runner (62), and the sub-runner (62) is communicated with the bottom of the cavity (121).

4. An injection mould according to claim 1, characterized in that the rear mould base (22) is provided with a recess at its upper end, and the rear mould core (23) is fixed in the recess.

5. An injection mold according to claim 1, wherein the lower end of the push plate (3) is further connected with a push rod (7), and through holes for the push rod (7) to move are formed in the rear mold core (23), the rear mold base (22) and the rear mold supporting plate (21).

6. An injection mold according to claim 1, characterized in that, the mold insert (4) comprises a support rod (41) connected to the upper end of the rear mold supporting plate (21), and a loose core (42) connected to the upper end of the support rod (41), the outer side of the support rod (41) is further sleeved with a forming shell (8), and the forming shell (8) is fixed to the inner side of the rear mold core (23).