CN216683105U

CN216683105U - Injection mold utilizing plastic self-forming bending characteristic

Info

Publication number: CN216683105U
Application number: CN202122558007.3U
Authority: CN
Inventors: 李友江
Original assignee: Shenzhen Runda Plastic Co ltd
Current assignee: Shenzhen Runda Plastic Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-06-07
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses an injection mold utilizing the self-shape bending characteristic of plastic, belonging to the technical field of injection molds, the injection mold comprises an injection mold, the injection mold comprises an upper mold and a lower mold, a connector assembled at the bottom of the second mold block is connected to a vacuum machine, when the upper die and the lower die are jointed, the insert block is inserted into the slot, the insert rod is inserted into the sealing ring, the L-shaped insert block is inserted into the second slot, at the moment, the vacuum machine is started, so that the first air suction hole and the second air suction hole generate suction, the vacuum is generated in the slot to adsorb the insert block by the suction generated by the first air suction hole and the joint of the upper die and the lower die, the second suction holes are used for generating suction, so that vacuum can be generated between the inside of the sealing ring and the holes at the bottoms of the second suction holes, the upper die and the lower die can be tightly adsorbed together, and the influence on the sealing performance between the upper die and the lower die due to the existence of the heat dissipation device can be avoided.

Description

Injection mold utilizing plastic self-forming bending characteristic

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold utilizing the self-forming bending characteristic of plastic.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die. Stirring the completely molten plastic material by a screw at a certain temperature, injecting the plastic material into a mold cavity by high pressure, and cooling and solidifying to obtain a molded product. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods.

The existing injection mold needs to dissipate heat after injection molding is finished, the sealing performance of the mold is affected to a certain extent after a heat dissipation structure is additionally arranged, and the poor sealing performance can cause injection molding failure.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection mold utilizing the self-forming bending characteristic of plastic, which aims to solve the problems that the existing injection mold needs to dissipate heat after injection molding is finished, the sealing performance of the injection mold is influenced to a certain extent after a heat dissipation structure is additionally arranged, and the injection mold fails due to poor sealing performance.

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides an utilize plastic to be from injection mold of shape bending property, includes injection mold, injection mold include mould and bed die, last mould include first mould piece, the up end four corners of first mould piece all be provided with the lug, the up end of every lug all is equipped with the sealing ring, and sets up porosely between the lower extreme of sealing ring and the upper end of lug, and the edge that department was equipped with L type inserted block in the middle of every lug was close to first mould piece.

Preferably, the lower end surface of the first mold block is provided with an upper mold core, the center of the lower end surface of the first mold block is provided with an opening, the front side, the rear side, the left side and the right side of the lower end surface of the first mold block are provided with symmetrical slots, the front side, the rear side and the left side of the first mold block are provided with first through holes intersected with the slots, and the first through holes are used for connecting the air inlet pipe and the air outlet pipe.

Preferably, the lower die comprises a second die block, a lower die core is assembled on the upper end face of the second die block, the four sides of the upper end face of the second die block are respectively provided with an insert block, first air suction holes are formed in the insert blocks on the front side and the rear side and penetrate through the insert blocks and the second die block, and second through holes penetrating through the first air suction holes are formed in the side faces of the insert blocks on the left side and the right side.

Preferably, the intersected included angle of each insert block is provided with a hole, an insert rod is assembled in the hole, the top end of the insert rod is provided with a second air suction hole penetrating through the insert rod and the second mold block, a second slot is arranged at the position, close to the center, of each insert rod, the second slot is communicated with the hole at the bottom of the insert rod, and the lower end face of the second mold block is provided with a plurality of connectors corresponding to the first air suction hole and the second air suction hole; the vacuum pump is connected through the connector, so that suction can be generated at the second suction hole and the first suction hole.

Preferably, the insert block is inserted into the slot, the insert rod is inserted into the sealing ring, and the L-shaped insert block is inserted into the second slot.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, the connector assembled at the bottom of the second mold block is connected to the vacuum machine, when the upper mold and the lower mold are attached, the insert block is inserted into the slot, the insert rod is inserted into the sealing ring, the L-shaped insert block is inserted into the second slot, at the moment, the vacuum machine is started, so that the first air suction hole and the second air suction hole generate suction, the suction is generated through the first air suction hole and is attached to the lower mold of the upper mold, the vacuum can be generated inside the slot to adsorb the insert block, the suction is generated through the second air suction hole, the vacuum can be generated between the inside of the sealing ring and the hole at the bottom of the second air suction hole, the upper mold and the lower mold can be tightly adsorbed together, and the influence on the sealing property between the upper mold and the lower mold due to the existence of a heat dissipation device can be avoided.

(2) According to the utility model, the air inlet pipe or the water inlet pipe is connected through the second through hole on the left and right insertion blocks, the air outlet pipe or the water outlet pipe is connected through the second through hole on the other insertion block, air flow and water flow can be realized on the outer walls of the lower die core and the upper die core during attachment through forgiveness on two sides, heat can be radiated inside, and the sealing property of the lower die core and the upper die core is not influenced.

Drawings

FIG. 1 is a schematic structural view of an injection mold utilizing the self-bending property of plastic according to the present invention;

FIG. 2 is a schematic view of the upper mold structure of the present invention;

FIG. 3 is a schematic view of the structure of the lower mold of the present invention;

FIG. 4 is a bottom structure of the lower mold of the present invention.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:

1. injection molding a mold;

2. an upper die; 21. a first mold block; 22. loading a mold core; 23. a bump; 24. a seal ring; 25. opening a hole;

26. a slot; 27. a first through hole; 28. an L-shaped insert block;

3. a lower die; 31. a second mold block; 32. inserting a block; 33. a first air-intake hole; 34. inserting a rod; 35. a second slot;

36. a lower die core; 37. a second through hole; 38. a connector; 39. a second suction hole.

Detailed Description

The utility model is further described below in connection with specific embodiments.

Example 1

As shown in fig. 1, which is a schematic structural diagram of an injection mold utilizing plastic self-bending characteristics according to a preferred embodiment of the present invention, the injection mold utilizing plastic self-bending characteristics of the present embodiment includes an injection mold 1, the injection mold 1 includes an upper mold 2 and a lower mold 3, and the lower mold 3 is inserted into the upper mold 2.

As shown in fig. 2, which is a schematic view of an upper mold structure in the present invention, the upper mold 2 includes a first mold block 21, four corners of an upper end surface of the first mold block 21 are provided with bumps 23, an upper end surface of each bump 23 is provided with a sealing ring 24, a hole is provided between a lower end of the sealing ring 24 and an upper end of the bump 23, an L-shaped insert 28 is provided on an edge of each bump 23 near a middle of the first mold block 21, an upper mold core 22 is provided on a lower end surface of the first mold block 21, an opening 25 is provided in a center of a lower end surface of the first mold block 21, symmetrical slots 26 are provided on front, rear, left and right sides of the lower end surface of the first mold block 21, and first through holes 27 intersecting the slots 26 are provided on front and rear sides of the first mold block 21; the lower die 3 is inserted through the projection 23 and the sealing ring 24, and the lower die is inserted through the slot 26 and the L-shaped insert 28.

As shown in fig. 3-4, which is a schematic view of the structure of the lower mold of the present invention, the lower mold 3 includes a second mold block 31, a lower mold core 36 is assembled on the upper end surface of the second mold block 31, four sides of the upper end surface of the second mold block 31 are assembled with insert blocks 32, the insert blocks 32 on the front and rear sides are provided with first suction holes 33, the first suction holes 33 penetrate through the insert blocks 32 and the second mold block 31, the side surfaces of the insert blocks 32 on the left and right sides are provided with second through holes 37 penetrating through the first suction holes 33, a hole is provided at the corner where each insert block 32 intersects, an insert rod 34 is assembled in the hole, the top end of the insert rod 34 is provided with a second suction hole 39 penetrating through the insert rod 34 and the second mold block 31, a second insert slot 35 is provided at a position near the center of each insert rod 34, the second insert slot 35 communicates with the hole at the bottom of the insert rod 34, the lower end surface of the second mold block 31 is provided with a plurality of connectors 38 corresponding to the first suction holes 33 and the second suction holes 39 through the insert blocks 32 The insertion groove 26 is inserted into the sealing ring 24 through the insertion rod 34, and is inserted into the second insertion groove 35 through the L-shaped insertion block 28.

The insert 32 is inserted into the slot 26, the insert rod 34 is inserted into the sealing ring 24, and the L-shaped insert 28 is inserted into the second slot 35.

The working principle is as follows: the connecting head 38 assembled at the bottom of the second mold block 31 is connected to a vacuum machine, when the upper mold 2 and the lower mold 3 are jointed, the insert block 32 is inserted into the insert groove 26, the insert rod 34 is inserted into the sealing ring 24, the L-shaped insert block 28 is inserted into the second insert groove 35, at this time, the vacuum machine is started, so that suction is generated at the first suction hole 33 and the second suction hole 39, suction is generated through the first suction hole 33 and the joint of the lower mold 3 of the upper mold 2, vacuum can be generated inside the insert groove 26 to adsorb the insert block 32, suction is generated through the second suction hole 39, vacuum can be generated between the inside of the sealing ring 24 and the hole at the bottom of the second suction hole 39, the upper mold 2 and the lower mold 3 can be adsorbed together tightly, and the influence on the sealing performance between the upper mold 2 and the lower mold 3 due to the existence of a heat dissipation device can be avoided.

Example 2

As shown in fig. 1 to 4, which are schematic structural views of an injection mold utilizing plastic self-bending characteristics according to another preferred embodiment of the present invention, in example 1, an air inlet pipe or a water inlet pipe is connected to the injection mold utilizing plastic self-bending characteristics through the second through holes 37 of the left and right insert blocks 32, and the second through holes 37 of the other insert block 32 are connected to the air outlet pipe or the water outlet pipe, so that air flow and water flow can be realized between the outer walls of the lower mold core 36 and the upper mold core 22 during the attaching process through understanding of the two sides, heat can be dissipated from the inside, and the sealing performance thereof is not affected.

While the utility model has been described in further detail in connection with specific embodiments thereof, it will be understood that the utility model is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the utility model, which should be considered to be within the scope of the utility model as defined by the appended claims.

Claims

1. An injection mold utilizing the plastic self-forming bending characteristic comprises an injection mold (1), wherein the injection mold (1) comprises an upper mold (2) and a lower mold (3),

the method is characterized in that:

the lower die (3) is inserted into the upper die (2).

2. The injection mold of claim 1, wherein the plastic has a self-bending characteristic, and the injection mold further comprises: go up mould (2) including first mould piece (21), the up end four corners of first mould piece (21) all be provided with lug (23), the up end of every lug (23) all is equipped with sealing ring (24), and is provided with the hole between the lower extreme of sealing ring (24) and the upper end of lug (23), and every lug (23) are equipped with L type inserted block (28) near the edge of first mould piece (21) middle department.

3. An injection mold using plastic self-bending property as claimed in claim 2, wherein: the lower end face of the first die block (21) is provided with an upper die core (22), the center of the lower end face of the first die block (21) is provided with an opening (25), the front side, the rear side, the left side and the right side of the lower end face of the first die block (21) are provided with symmetrical slots (26), and the front side and the rear side of the first die block (21) are provided with first through holes (27) intersected with the slots (26).

4. An injection mold using plastic self-bending property as claimed in claim 3, wherein: lower mould (3) include second mould piece (31), second mould piece (31) up end assembly have lower mould benevolence (36), the up end four sides of second mould piece (31) all are equipped with inserted block (32), and are provided with first inspiration hole (33) on inserted block (32) of front and back both sides, first inspiration hole (33) pierce through inserted block (32) and second mould piece (31), the side of the inserted block (32) of the left and right sides is provided with second through-hole (37) that pierce through first inspiration hole (33).

5. An injection mold using plastic self-bending characteristics as claimed in claim 4, wherein: the intersected included angle of each insert block (32) is provided with a hole, an insert rod (34) is assembled in the hole, a second air suction hole (39) penetrating through the insert rod (34) and the second mold block (31) is formed in the top end of the insert rod (34), a second slot (35) is formed in the position, close to the center, of each insert rod (34), the second slot (35) is communicated with the hole in the bottom of the insert rod (34), and a plurality of connectors (38) corresponding to the first air suction holes (33) and the second air suction holes (39) are formed in the lower end face of the second mold block (31).

6. An injection mold using plastic self-bending characteristics as claimed in claim 5, wherein: the inserting block (32) is inserted into the inserting groove (26), the inserting rod (34) is inserted into the sealing ring (24), and the L-shaped inserting block (28) is inserted into the second inserting groove (35).