CN220482419U

CN220482419U - Injection mould for lunch box

Info

Publication number: CN220482419U
Application number: CN202322107282.2U
Authority: CN
Inventors: 应志远
Original assignee: Taizhou Qitai Home Furnishings Co ltd
Current assignee: Taizhou Qitai Home Furnishings Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-13
Anticipated expiration: 2033-08-07

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a lunch box injection mold. The utility model comprises an upper die plate, an upper die holder, a lower die holder and a base, wherein the upper die holder is arranged below the upper die plate, injection molding openings are formed in the upper die holder, a die groove and a guide channel are formed in the bottom of the upper die holder, a die core groove and an upper groove are formed in the die groove, a protruding part is arranged above the lower die holder, the protruding part is pressed with the die groove, a side guide groove and a middle guide groove are formed in the protruding part, wedge blocks and guide blocks are arranged in the side guide groove and the middle guide groove, a block top is arranged above the guide blocks, rectangular through holes are formed in the lower die holder, a die core block penetrates into the rectangular through holes, and the base is fixedly connected below the die core block 7.

Description

Injection mould for lunch box

Technical Field

The utility model belongs to the technical field of injection molds, and relates to a lunch box injection mold.

Background

The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a processing method used in mass production of parts with complex shapes; specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification. In the conventional plastic parts, it is generally necessary to form a part such as a snap groove during injection molding, and when the injection mold is used for producing plastic parts having the characteristics, it is generally necessary to perform secondary processing, and many processes are required.

Disclosure of Invention

The object of the present utility model is to solve the above problems and to provide a lunch box injection mold.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a lunch box injection mold, includes cope match-plate pattern, upper die base, die holder and base, the cope match-plate pattern below is equipped with the upper die base, and has all seted up the mouth of moulding plastics in cope match-plate pattern and the upper die base, pressfitting the die holder below the upper die base, the upper die base bottom is equipped with die cavity and location bight, the die holder top is equipped with bellying and location bight, and the bellying pressfitting is in the die cavity, the location bight pressfitting location bight in the die cavity simultaneously, be equipped with the guide channel in the middle of the die cavity bottom, and the guide channel intercommunication mouth of moulding plastics, the die cavity bottom is equipped with die core groove and upper groove, and die core groove both sides all are equipped with the upper groove, limit guide slot and rectangular through-hole have been seted up to the die holder top, and rectangular through-hole corresponds the die core groove, install in the limit guide slot, be equipped with the guide block in the voussoir, the guide block top is equipped with the piece top, and the piece top is arranged in the upper groove, all be equipped with the die core piece in the rectangular through-hole, the die core piece is worn out of die base, the piece bottom is arranged in the base, and die base top pressfitting bottom.

In the lunch box injection mold, the injection molding opening is formed in the inner center of the upper mold plate, the lower part of the upper mold plate is fixedly connected with the upper mold base, the injection molding opening is formed in the center of the upper mold base, meanwhile, the upper mold plate is in injection molding communication with the center of the upper mold base, the area of the upper mold plate is larger than that of the upper mold base, the lower mold base is pressed below the upper mold base, and the area of the upper mold base is the same as that of the lower mold base.

In the lunch box injection mold, the bottom of the upper mold seat is provided with the mold groove, four corners of the bottom of the upper mold seat are fixedly connected with positioning corners, the top of the lower mold seat is fixedly connected with the convex parts, four corners of the lower mold seat are provided with the positioning corner openings, and the mold groove and the positioning corner openings are respectively pressed with the convex parts and the positioning corner openings to be tightly attached.

In the lunch box injection mold, a flow guide channel is arranged in the middle of the bottom of the mold cavity, a mold core groove and an upper groove are arranged in the bottom of the mold cavity, each two upper grooves are arranged on two sides of the middle of the mold core groove, the flow guide channel is communicated with an injection molding opening, and a side opening of the flow guide channel is connected with the mold core groove.

In the lunch box injection mold, the protruding portion is provided with the side guide grooves, the middle guide grooves and the rectangular through holes, each two of the four side guide grooves are arranged on two sides of the protruding portion, the middle guide groove is arranged in the middle of the protruding portion, the rectangular through holes are arranged between the middle guide groove and the side guide grooves, and distances are reserved between the middle guide groove and the side guide grooves.

In the lunch box injection mold, two wedges are fixedly connected to two sides in the side guide groove, a T-shaped slide way is formed between the two wedges, the slide way in the wedges is connected with a guide block, the top of one end of the guide block is fixedly connected with the top of the connecting block, and the top of the block is arranged in the upper groove.

In the lunch box injection mold, the two sides in the middle guide groove are fixedly connected with the wedge blocks, T-shaped slide ways are formed in the wedge blocks, the two guide blocks are connected in a sliding manner in the wedge blocks, the two guide blocks are reversely symmetrical, and meanwhile, the two guide blocks respectively correspond to the guide blocks in the side guide groove.

In the lunch box injection mold, the rectangular through holes upwards correspond to the mold core grooves, mold core blocks are inserted into the rectangular through holes, the upper ends and the lower ends of the mold core blocks penetrate out of the rectangular through holes, and the upper ends of the mold core blocks are arranged in the mold core grooves.

In the lunch box injection mold, a strip notch is formed in the middle of the mold core block, and the strip notch is inserted into the lower mold seat between the rectangular through holes.

In the lunch box injection mold, the mold core block penetrates through the bottom of the lower end and is fixedly connected with the base, and two limiting bottom grooves are formed in the base.

Compared with the prior art, the utility model has the advantages that:

the upper die holder is arranged below the upper die plate, the injection molding openings are arranged in the upper die holder and the upper die holder, the die cavity is formed in the upper die holder, the guide channel is arranged in the die cavity, the die core groove and the upper groove are formed in the die cavity, the protruding part is arranged above the lower die holder and is pressed with the die cavity, the side guide groove and the middle guide groove are formed in the protruding part, the wedge blocks are arranged in the side guide groove and the middle guide groove, the guide blocks are arranged in the wedge blocks, the block tops are arranged above the guide blocks and are inserted into the upper grooves, the rectangular through holes are formed in the lower die holder, the die core blocks penetrate into the die core blocks, the upper ends of the die core blocks are inserted into the die core grooves, the base is fixedly connected below the die core blocks 7, and in one-step molding is performed when demoulding, the die core blocks are utilized to be directly pulled out, and the guide blocks slide in the wedge blocks, so that molded products above the guide blocks cannot be jacked up to generate clamping pieces.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is an overall schematic of the present utility model;

FIG. 2 is an overall exploded top view schematic of the present utility model;

FIG. 3 is an overall exploded bottom view of the present utility model;

FIG. 4 is an overall side cross-sectional schematic of the present utility model;

fig. 5 is a schematic diagram of the assembly of components in a lower die holder in which the present utility model is embodied in its entirety.

In the figure: 1. an upper template; 2. an upper die holder; 21. a die cavity; 22. a mold core groove; 23. positioning the corner; 3. a lower die holder; 31. a side guide groove; 32. rectangular through holes; 33. positioning an angle opening; 34. a middle guide groove; 35. a boss; 4. a base; 41. a limiting bottom groove; 5. an injection molding port; 6. wedge blocks; 7. a core block; 71. a strip notch; 8. a guide block; 81. a block top; 9. an upper groove; 10. a flow guide channel.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-5, a lunch box injection mold comprises an upper mold plate 1, an upper mold plate 2, a lower mold plate 3 and a base 4, wherein the upper mold plate 2 is arranged below the upper mold plate 1, injection molding openings 5 are respectively arranged in the upper mold plate 1 and the upper mold plate 2, the lower mold plate 3 is pressed and bonded below the upper mold plate 2, a mold cavity 21 and a positioning corner 23 are arranged at the bottom of the upper mold plate 2, a protruding part 35 and a positioning corner 33 are arranged at the top of the lower mold plate 3, the protruding part 35 is pressed and bonded in the mold cavity 21, the positioning corner 23 is pressed and bonded in the positioning corner 33, a guide channel 10 is arranged in the middle of the bottom of the mold cavity 21, and the guide channel 10 is communicated with the injection molding opening 5, the bottom of the die cavity 21 is provided with a die core groove 22 and an upper groove 9, both sides of the die core groove 22 are provided with the upper groove 9, a side guide groove 31 and a rectangular through hole 32 are formed in the upper portion of the lower die holder 3, the rectangular through hole 32 corresponds to the die core groove 22, a wedge block 6 is installed in the side guide groove 31, a guide block 8 is arranged in the wedge block 6, a block top 81 is arranged above the guide block 8, the block top 81 is arranged in the upper groove 9, die core blocks 7 are arranged in the die core groove 22 and the rectangular through hole 32, the die core blocks 7 penetrate out of the lower die holder 3, the bottom of the die core blocks 7 is arranged in a base 4, and the bottom of the lower die holder 3 is pressed above the base 4.

An injection molding opening 5 is formed in the center of the upper die plate 1, the lower side of the upper die plate 1 is fixedly connected with the upper die base 2, the injection molding opening 5 is formed in the center of the upper die base 2, meanwhile, the upper die plate 1 is communicated with the center of the upper die base 2 in an injection molding mode, the area of the upper die plate 1 is larger than that of the upper die base 2, the lower die base 3 is pressed below the upper die base 2, and the area of the upper die base 2 is identical to that of the lower die base 3.

An upper die holder 2 is arranged below the upper die plate 1, an injection molding opening 5 is formed in the upper die holder and the upper die holder, and the injection molding opening 5 is utilized to perform injection molding on the inside of the whole die.

The bottom of the upper die holder 2 is provided with a die cavity 21, four corners of the bottom of the upper die holder 2 are fixedly connected with positioning corners 23, the top of the lower die holder 3 is fixedly connected with a protruding part 35, four corners of the lower die holder 3 are provided with positioning corners 33, and the die cavity 21 and the positioning corners 23 are respectively pressed against the protruding part 35 and the positioning corners 33 to be tightly attached.

The die holder 3 is arranged below the upper die holder 2, the die cavity 21 is arranged in the upper die holder 2, the protruding part 35 is arranged above the lower die holder 3, and the die is assembled after the die cavity 21 and the protruding part 35 are pressed together, so that the two parts become the parts of the die forming part, the positioning angle part 23 and the positioning angle opening 33 are respectively arranged on the upper die holder 2 and the lower die holder 3, the positioning angle part 23 can be inserted into the positioning angle opening 33, and the upper die holder 2 and the lower die holder 3 can be ensured to be accurately pressed together during the die assembly.

Further, a flow guiding channel 10 is arranged in the middle of the bottom of the die cavity 21, a die core groove 22 and upper grooves 9 are arranged in the bottom of the die cavity 21, each two upper grooves 9 are arranged on two sides of the middle of the die core groove 22, the flow guiding channel 10 is communicated with the injection molding opening 5, and side openings of the flow guiding channel 10 are connected with the die core groove 22.

A runner 10 is provided in the cavity 21, and injection molding is performed between the upper die holder 2 and the lower die holder 3 through the runner 10 when the inside is injection molded by the injection port 5 provided above.

Further, the protruding portion 35 is provided with a side guiding groove 31, a middle guiding groove 34 and a rectangular through hole 32, each two of the four side guiding grooves 31 are arranged on two sides of the protruding portion 35, the middle guiding groove 34 is arranged in the middle of the protruding portion 35, the rectangular through hole 32 is arranged between the middle guiding groove 34 and the side guiding groove 31, and a distance exists between the three.

Further, two wedges 6 are fixedly connected to two sides in the side guide groove 31, a T-shaped slide way is formed between the two wedges 6, the guide block 8 is connected in the sliding way in the wedges 6, the top of one end of the guide block 8 is fixedly connected with the top 81 of the block, and the top 81 of the block is arranged in the upper groove 9.

The bulge 35 is provided with a side guide groove 31 and a middle guide groove 34, the wedge block 6 and the guide block 8 are arranged in the bulge and the middle guide groove, meanwhile, a forming cavity is formed in the wedge block 6, the guide block 8 and the upper die cavity 21, the top of the guide block 8 is provided with a block top 81, and after the block top 81 is matched with the upper groove 9 above, a bottom corner of a forming part is formed.

Further, the two sides in the middle guide groove 34 are fixedly connected with the wedge block 6, a T-shaped slide way is formed in the wedge block 6, the two guide blocks 8 are connected in a sliding way in the wedge block 6, the two guide blocks 8 are reversely symmetrical, and the two guide blocks 8 respectively correspond to the guide blocks 8 in the side guide groove 31.

The guide block 8 is inserted into the wedge block 6 for sliding connection, and the sliding of the guide block 8 enables the whole die to be easily demolded during demolding, and meanwhile the forming piece cannot be blocked.

The rectangular through holes 32 correspond to the mold core grooves 22 upwards, the mold core blocks 7 are inserted into the rectangular through holes 32, the upper ends and the lower ends of the mold core blocks 7 penetrate out of the rectangular through holes 32, and the upper ends of the mold core blocks 7 are placed in the mold core grooves 22.

Further, a strip notch 71 is formed in the middle of the die core block 7, and the strip notch 71 is inserted into the lower die holder 3 between the rectangular through holes 32.

The die core pieces 7 are inserted into the lower die holder 3, and the upper ends of the die core pieces 7 are inserted into the die core grooves 22 of the die grooves 21 in order to form the product shape.

The die core block 7 penetrates out of the lower end bottom to be fixedly connected with the base 4, and two limit bottom grooves 41 are formed in the base 4.

The die core pieces 7 are fixedly connected to the base 4, so that the die core pieces 7 are released together with the base 4 when the die is released.

Working principle:

the upper die holder 2 is arranged below the upper die plate 1, the injection molding openings 5 are arranged in the upper die plate 1 and the upper die holder 2, the die cavity 21 is formed in the bottom of the upper die holder 2, the guide channel 10 is arranged in the die cavity 21, the die core groove 22 and the upper groove 9 are arranged in the die cavity 21, the lower die holder 3 is pressed under the upper die holder 2, the protruding part 35 is arranged above the lower die holder 3, the protruding part 35 and the die cavity 21 are pressed into a molded part, the protruding part 35 is provided with the side guide groove 31 and the middle guide groove 34, the wedge blocks 6 are arranged in the side guide groove 31 and the middle guide groove 34, the guide blocks 8 are arranged in the wedge blocks 6, the block top 81 is arranged above the guide blocks 8 and inserted into the upper groove 9 to form a product bottom corner, the rectangular through holes 32 are arranged in the lower die holder 3, the rectangular through holes 32 penetrate into the die core block 7, the upper end of the die core block 7 is inserted into the die core groove 22 to form a part of the product, the base 4 is fixedly connected below the die core block 7, during die assembly, injection molding is performed inside through the guide channel 5, and the guide channel 10 is utilized to split injection molding liquid, thus the injection molding is completely, and the power is completely formed inside the die core block, and the product is separated from the die core block 4 by the die core block 4 when the power is completely separated from the die base 2, and finally, and the die carrier 1 is separated from the die base from the upper die holder 2 by the power source from the upper die holder 2.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.

Although 1, upper template is used more herein; 2. an upper die holder; 21. a die cavity; 22. a mold core groove; 23. positioning the corner; 3. a lower die holder; 31. a side guide groove; 32. rectangular through holes; 33. positioning an angle opening; 34. a middle guide groove; 35. a boss; 4. a base; 41. a limiting bottom groove; 5. an injection molding port; 6. wedge blocks; 7. a core block; 71. a strip notch; 8. a guide block; 81. a block top; 9. an upper groove; 10. flow leaders, and the like, but do not exclude the possibility of using other terms. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.

Claims

1. The utility model provides a lunch box injection mould, includes cope match-plate pattern (1), upper die base (2), die holder (3) and base (4), its characterized in that: the upper die plate (1) is provided with an upper die holder (2) below, injection molding openings (5) are formed in the upper die plate (1) and the upper die holder (2), die grooves (21) and positioning angle portions (23) are formed in the bottoms of the upper die holder (2) and the lower die holder (3), protruding portions (35) and positioning angle openings (33) are formed in the tops of the lower die holder (3), the protruding portions (35) are pressed in the die grooves (21), the positioning angle openings (33) are pressed in the positioning angle portions (23) simultaneously, guide channels (10) are formed in the middle of the bottoms of the die grooves (21), the guide channels (10) are communicated with the injection molding openings (5), die grooves (22) are formed in the bottoms of the die grooves (21), upper grooves (9) are formed in two sides of the die grooves (22), side guide grooves (31) and rectangular through holes (32) are formed in the tops of the lower die holder (3), corresponding grooves (22), wedge blocks (81) are formed in the tops of the wedge blocks (6), and the top blocks (81) are arranged in the top blocks (8), the die core groove (22) and the rectangular through hole (32) are internally provided with die core blocks (7), the die core blocks (7) penetrate out of the lower die holder (3), the bottoms of the die core blocks (7) are arranged in the base (4), and the bottoms of the lower die holder (3) are pressed above the base (4).

2. The lunch box injection mold according to claim 1, wherein: the injection molding die is characterized in that an injection molding opening (5) is formed in the inner center of the upper die plate (1), the lower side of the upper die plate (1) is fixedly connected with an upper die holder (2), the injection molding opening (5) is formed in the center of the upper die holder (2), meanwhile, the upper die plate (1) is communicated with the center of the upper die holder (2) in an injection molding mode, the area of the upper die plate (1) is larger than that of the upper die holder (2), the lower side of the upper die holder (2) is pressed into a lower die holder (3), and the area of the upper die holder (2) is identical to that of the lower die holder (3).

3. The lunch box injection mold according to claim 2, wherein: the die comprises an upper die holder (2), wherein a die cavity (21) is formed in the bottom of the upper die holder (2), positioning corners (23) are fixedly connected to four corners of the bottom of the upper die holder (2), protruding portions (35) are fixedly connected to the top of the lower die holder (3), positioning corner openings (33) are formed in four corners of the lower die holder (3), and the die cavity (21) and the positioning corners (23) are respectively pressed against the protruding portions (35) and the positioning corner openings (33) to be tightly attached.

4. A lunch box injection mould according to claim 3, wherein: the mold is characterized in that a flow guide channel (10) is arranged in the middle of the bottom of the mold cavity (21), a mold core groove (22) and an upper groove (9) are arranged in the bottom of the mold cavity (21), each two upper grooves (9) are arranged on two sides of the middle of the mold core groove (22), the flow guide channel (10) is communicated with an injection molding opening (5), and side openings of the flow guide channel (10) are connected with the mold core groove (22).

5. The lunch box injection mold according to claim 4, wherein: side guide grooves (31), middle guide grooves (34) and rectangular through holes (32) are formed in the protruding portions (35), every two of the four side guide grooves (31) are arranged on two sides of the protruding portions (35), meanwhile, the middle guide grooves (34) are arranged in the middle of the protruding portions (35), the rectangular through holes (32) are formed between the middle guide grooves (34) and the side guide grooves (31), and distances are reserved between the middle guide grooves and the side guide grooves.

6. The lunch box injection mold according to claim 5, wherein: two wedges (6) are fixedly connected to two sides in the side guide groove (31), a T-shaped slide way is formed between the two wedges (6), a guide block (8) is connected in the inner slide of the wedges (6), a top part (81) of a connecting block is fixedly arranged at one end of the guide block (8), and the top part (81) of the block is arranged in the upper groove (9).

7. The lunch box injection mold according to claim 6, wherein: the two sides in the middle guide groove (34) are fixedly connected with the wedge blocks (6), T-shaped slide ways are formed in the wedge blocks (6), the two guide blocks (8) are connected in the sliding mode in the wedge blocks (6), the two guide blocks (8) are reversely symmetrical, and meanwhile the two guide blocks (8) correspond to the guide blocks (8) in the side guide groove (31) respectively.

8. The lunch box injection mold of claim 7, wherein: the rectangular through holes (32) correspond to the mold core grooves (22) upwards, the mold core blocks (7) are inserted into the rectangular through holes (32), the upper ends and the lower ends of the mold core blocks (7) penetrate out of the rectangular through holes (32), and the upper ends of the mold core blocks (7) are arranged in the mold core grooves (22).

9. The lunch box injection mold according to claim 8, wherein: a strip gap (71) is formed in the middle of the die core block (7), and the strip gap (71) is inserted into the lower die holder (3) between the rectangular through holes (32).

10. The lunch box injection mold according to claim 9, wherein: the mold core block (7) penetrates through the bottom of the lower end to be fixedly connected with the base (4), and two limiting bottom grooves (41) are formed in the base (4).