CN109483807B

CN109483807B - Deformable injection mold

Info

Publication number: CN109483807B
Application number: CN201811281642.8A
Authority: CN
Inventors: 钟锋良; 陈萌
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-23
Filing date: 2018-10-23
Publication date: 2021-05-28
Anticipated expiration: 2038-10-23
Also published as: CN109483807A

Abstract

The invention discloses a deformable injection mold in the technical field of injection molds, which comprises a movable mold fixing plate and a fixed mold fixing plate, wherein an upper template is arranged at the center of the bottom of the movable mold fixing plate, a sprue is arranged at the center of the top of the movable mold fixing plate, guide mounting grooves and guide sleeves are symmetrically arranged at the left side and the right side of the bottom of the movable mold fixing plate, guide pillars are arranged at the left side and the right side of the top of the fixed mold fixing plate, a lower template is arranged at the center of the top of the fixed mold fixing plate, lifting mold cores are arranged on the lower template side by side, the bottoms of the two groups of lifting mold cores are connected with a connecting transverse plate, a lifting screw rod and a rotating screw tube are connected at the center of the bottom of the connecting transverse plate, a driving turbine and a driving worm are fixedly sleeved at the, brings obvious industrial benefit deformation.

Description

Deformable injection mold

Technical Field

The invention relates to the technical field of injection mold lamps, in particular to a deformable injection mold.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

In the actual industrial injection production, the shapes of many injection parts are consistent, and the difference is only that the positions, sizes or depths of individual hole sites have slight differences.

Disclosure of Invention

The invention aims to provide a deformable injection mold, which aims to solve the problems that the injection mold in the prior art cannot change the shape of the mold and the development cost of the mold is high.

In order to achieve the purpose, the invention provides the following technical scheme: a deformable injection mold comprises a movable mold fixing plate and a fixed mold fixing plate, wherein an upper mold plate mounting groove is formed in the center of the bottom of the movable mold fixing plate, an upper mold plate is embedded in the upper mold plate mounting groove, a pouring gate is formed in the center of the top of the movable mold fixing plate, the bottom end of the pouring gate is communicated with the bottom of the upper mold plate, guide mounting grooves are symmetrically formed in the left side and the right side of the bottom of the movable mold fixing plate, and guide sleeves are embedded and mounted at the bottoms of inner cavities of the guide mounting grooves;

the left side and the right side of the top of the fixed die fixing plate are provided with guide posts, the guide posts and the guide sleeves are in up-and-down insertion fit, a lower die plate mounting groove is formed in the center of the top of the fixed die fixing plate, a lower die plate is embedded in the top of the lower die plate mounting groove and is provided with two sets of die core through holes side by side, lifting die cores are arranged in the die core through holes in a penetrating manner, the bottoms of the two sets of lifting die cores are commonly connected with a connecting transverse plate, the center of the bottom of the connecting transverse plate is connected with a lifting screw rod, the outer wall of the bottom of the lifting screw rod is in threaded connection with a rotary screw pipe, the outer wall of the middle part of the rotary screw pipe is fixedly installed on the rear side wall of the lower die plate mounting groove through a first bearing seat, a driving turbine is fixedly sleeved at the bottom end of the rotary, the right end of the driving worm is connected with a driving connecting rod, a connecting rod through hole for the driving connecting rod to pass through is formed in the right side wall of the lower template mounting groove, the right end of the driving connecting rod extends out of the inner cavity of the lower template mounting groove through the connecting rod through hole, and the driving connecting rod is connected with an adjusting handle.

Preferably, the upper template and the lower template are respectively fixed with the movable mold fixing plate and the fixed mold fixing plate through counter bore screws, and the counter bore screws are distributed along the circumferential edges of the upper template and the lower template in an array manner.

Preferably, the bottom of the guide pillar is provided with a step flange, the guide pillar is embedded in the top of the fixed die fixing plate, and the step flange is pressed tightly and fixed through a mounting pressing plate sleeved on the outer wall of the guide pillar.

Preferably, the upper and lower ports of the mold core through hole are fixedly embedded with high temperature resistant sealing rings, and the inner rings of the high temperature resistant sealing rings are in sealing fit with the outer wall of the lifting mold core.

Preferably, ball bearings are arranged between the left end and the right end of the connecting rod through hole and the driving connecting rod.

Preferably, the outer side port of the connecting rod through hole is provided with a dustproof end cover, the driving connecting rod penetrates through the dustproof end cover, and the width of a gap between the upper part of the dustproof end cover and the outer wall of the driving connecting rod is less than 0.2 mm.

Preferably, a handle folding groove is formed in the bottom of the right side wall of the adjusting handle, and an expanding handle is hinged to the bottom of the handle folding groove through a pin.

Compared with the prior art, the invention has the beneficial effects that:

the mold core in the traditional mold is set to be in a lifting deformation mode, the lifting mold core is driven to lift and deform by adjusting the handle, when the top of the lifting mold core rises to abut against the upper mold plate, the lifting mold core can be used for injection molding of through hole products, and when the top of the lifting mold core is not abutted against the upper mold plate, the lifting mold core can be used for injection molding of blind hole products with different depths, so that one set of mold is used for injection molding of injection molding products with different depths, the development cost of the mold is reduced, the production period is shortened, and remarkable industrial benefits are brought;

the upper template and the lower template are respectively fixed with the movable mold fixing plate and the fixed mold fixing plate through the counter bore screws, the counter bore screws are distributed along the circumferential edge arrays of the upper template and the lower template, when different types of injection molding products need to be subjected to injection molding, only the counter bore screws need to be assembled and disassembled, and different upper templates and different lower templates can be replaced, so that the upper template and the lower template can be commonly used for the upper templates and the lower templates of different products, the whole mold does not need to be replaced, the development cost of the mold is saved, the operation of replacing the mold is facilitated, and the working efficiency is improved;

the lifting adjustment can be realized by only shaking the adjusting handle during adjustment, and the self-locking characteristic of the driving worm can prevent the lifting mold core from automatically lifting and deviating under the condition of non-artificial adjustment, so that the lifting adjustment is convenient and practical, and the injection molding precision is improved;

the inner cavity of the adjusting handle is provided with an expansion handle which can be unfolded for use, the expansion handle is unfolded during use and folded and combined during idle, the occupied space of the appearance of the device can be effectively saved, and the device is more convenient to store and store.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an injection mold according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an injection mold according to an embodiment of the present invention in a state where upper and lower molds are separated;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

fig. 5 is a schematic top view of a lower mold plate of an injection mold according to an embodiment of the invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a movable die fixing plate, 2-a fixed die fixing plate, 3-an upper die plate, 4-a pouring gate, 5-a guide installation groove, 6-a guide sleeve, 7-a guide pillar, 8-a lower die plate, 9-a die core through hole, 10-a lifting die core, 11-a connecting transverse plate, 12-a lifting screw rod, 13-a rotary screw tube, 14-a first bearing seat, 15-a driving turbine, 16-a driving worm, 17-a second bearing seat, 18-a driving connecting rod, 19-a connecting rod through hole, 20-an adjusting handle, 21-an installation pressing plate, 22-a high-temperature resistant sealing ring, 23-a dustproof end cover, 24-a handle folding groove, 25-a pin and 26-an expansion handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, for providing a preferred embodiment of the present invention, a deformable injection mold comprises a movable mold fixing plate 1 and a fixed mold fixing plate 2, wherein an upper mold plate mounting groove is formed in the center of the bottom of the movable mold fixing plate 1, an upper mold plate 3 is embedded in the upper mold plate mounting groove, a gate 4 is formed in the center of the top of the movable mold fixing plate 1, the bottom end of the gate 4 is communicated with the bottom of the upper mold plate 3, guide mounting grooves 5 are symmetrically formed in the left side and the right side of the bottom of the movable mold fixing plate 1, and a guide sleeve 6 is embedded in the bottom of an inner; the left side and the right side of the top of the fixed die fixing plate 2 are provided with guide posts 7, the guide posts 7 are in up-and-down insertion fit with guide sleeves 6, the center of the top of the fixed die fixing plate 2 is provided with a lower die plate mounting groove, the top of the lower die plate mounting groove is embedded with a lower die plate 8, the lower die plate 8 is provided with two sets of die core through holes 9 side by side, lifting die cores 10 are arranged in the die core through holes 9 in a penetrating manner, the bottoms of the two sets of lifting die cores 10 are commonly connected with a connecting transverse plate 11, the center of the bottom of the connecting transverse plate 11 is connected with a lifting screw 12, the outer wall of the bottom of the lifting screw 12 is in threaded connection with a rotary screw 13, the outer wall of the middle part of the rotary screw 13 is fixedly installed with the rear side wall of the lower die plate mounting groove through a first bearing seat 14, the bottom of the rotary screw 13 is, the right end of the driving worm 16 is connected with a driving connecting rod 18, the right side wall of the lower template mounting groove is provided with a connecting rod through hole 19 through which the driving connecting rod 18 passes, and the right end of the driving connecting rod 18 extends out of the inner cavity of the lower template mounting groove through the connecting rod through hole 19 and is connected with an adjusting handle 20;

the upper template 3 and the lower template 8 are respectively fixed with the movable die fixing plate 1 and the fixed die fixing plate 2 through counter bore screws, and the counter bore screws are distributed along the circumferential edges of the upper template 3 and the lower template 8 in an array manner, so that the upper template 3 and the lower template 8 can be conveniently replaced and assembled; the bottom of the guide post 7 is provided with a step flange, the guide post 7 is embedded in the top of the fixed die fixing plate 2, and the step flange is pressed tightly and fixed through a mounting pressing plate 21 sleeved on the outer wall of the guide post 7, so that the guide post 7 is more stably mounted; the upper and lower ports of the mold core through hole 9 are fixedly embedded with high temperature resistant sealing rings 22, the inner rings of the high temperature resistant sealing rings 22 are in sealing fit with the outer wall of the lifting mold core 10, and liquid is prevented from entering the lower template mounting groove; ball bearings are arranged between the left end and the right end of the connecting rod through hole 19 and the driving connecting rod 18 to play a supporting role; a dustproof end cover 23 is arranged at the outer side end opening of the connecting rod through hole 19, the driving connecting rod 18 penetrates through the dustproof end cover 23, the width of a gap between the upper part of the dustproof end cover 23 and the outer wall of the driving connecting rod 18 is less than 0.2mm, a dustproof effect is achieved, and dust is prevented from entering the connecting rod through hole 19; handle folding groove 24 has been seted up to the right side wall bottom of adjusting handle 20, and handle folding groove 24's bottom articulates through pin 25 has expansion handle 26, reduces the device and occupies space to in storage.

One specific application of this embodiment is:

in the embodiment, the mold core in the traditional mold is set to be in a lifting deformation mode, the lifting mold core 10 is driven to lift and deform by the adjusting handle 20, when the top of the lifting mold core 10 is lifted to abut against the upper mold plate 3, the lifting mold core can be used for injection molding of through hole products, and when the top of the lifting mold core 10 is not abutted against the upper mold plate 3, the lifting mold core can be used for injection molding of blind hole products with different depths, so that one set of mold is used for injection molding of injection molding products with different depths, the development cost of the mold is reduced, the production period is shortened, and obvious industrial benefits are brought; specifically, when the die is closed, the upper die plate 3 and the lower die plate 8 can form an injection cavity, the lifting die core 10 is located in the injection cavity, the lifting die core 10 can be lifted relative to the lower die plate 8 under the manual regulation and driving, when the lifting die core 10 is lifted, the hole site depth of a product is deepened until the product penetrates through the lifting die core to form a through hole, and when the lifting die core 10 is lowered, the hole site depth of the product is shallow until the top of the lifting die core 10 is flush with the lower die plate 8, and then the hole site is completely cancelled;

in the embodiment, the upper template 3 and the lower template 8 are respectively fixed with the movable mold fixing plate 1 and the fixed mold fixing plate 2 through the counter bore screws, the counter bore screws are distributed along the circumferential edge arrays of the upper template 3 and the lower template 8, when different types of injection molding products are required to be subjected to injection molding, only the counter bore screws are required to be assembled and disassembled, and different upper templates 3 and different lower templates 8 are required to be replaced, so that the whole mold is not required to be replaced, the mold development cost is saved, the mold replacement operation is facilitated, and the working efficiency is improved; specifically, cope match-plate pattern 3 and movable mould fixed plate 1, lower bolster 8 and cover half fixed plate 2 are equallyd divide and are do not for integrated configuration, and through countersunk screw locking, countersunk screw can prevent to produce to laminating between cope match-plate pattern 3 and the lower bolster 8 and hinder the interference, and screw locking is circular array form and distributes, and even atress prevents not hard up, during the change, only need lift countersunk screw off with the help of spanner instrument, the replacement installation back in the time locking countersunk screw can.

In the embodiment, the driving worm wheel 15 and the driving worm 16 are matched with each other, the characteristic of one-way transmission of the driving worm 16 is utilized, the driving worm 16 is controlled and driven by the external adjusting handle 20 to drive the driving worm wheel 15 to rotate, and then the lifting screw 12 and the rotary screw 13 are in threaded fit to convert the lifting movement into the lifting movement of the lifting mold core 10, so that the lifting adjustment is realized, the lifting operation can be carried out only by shaking the adjusting handle 20 during the adjustment, and the self-locking characteristic of the driving worm 16 can prevent the automatic lifting deviation of the lifting mold core 10 under the condition of non-artificial adjustment, so that the injection molding precision is improved; the inner cavity of the adjusting handle 20 is provided with an expanding handle 26 which can be expanded for use, the expanding handle is expanded when in use, and the expanding handle is folded and combined when not in use, so that the occupied space of the device appearance can be effectively saved, and the device is more convenient to store and store.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A deformable injection mold, characterized by: the die comprises a movable die fixing plate (1) and a fixed die fixing plate (2), wherein an upper die plate mounting groove is formed in the center of the bottom of the movable die fixing plate (1), an upper die plate (3) is embedded in the upper die plate mounting groove, a pouring gate (4) is formed in the center of the top of the movable die fixing plate (1), the bottom end of the pouring gate (4) is communicated with the bottom of the upper die plate (3), guide mounting grooves (5) are symmetrically formed in the left side and the right side of the bottom of the movable die fixing plate (1), and guide sleeves (6) are embedded in the bottoms of inner cavities of the guide mounting grooves;

guide posts (7) are arranged on the left side and the right side of the top of the fixed die fixing plate (2), the guide posts (7) are in up-and-down insertion fit with the guide sleeves (6), a lower die plate mounting groove is formed in the center of the top of the fixed die fixing plate (2), a lower die plate (8) is embedded in the top of the lower die plate mounting groove, two sets of die core through holes (9) are formed in the lower die plate (8) side by side, lifting die cores (10) are arranged in the die core through holes (9) in a penetrating manner, the bottoms of the two sets of lifting die cores (10) are commonly connected with a connecting transverse plate (11), a lifting screw rod (12) is connected to the center of the bottom of the connecting transverse plate (11), a rotary solenoid (13) is screwed on the outer wall of the bottom of the lifting screw rod (12), and the outer wall of, the bottom end of the rotary screw tube (13) is fixedly sleeved with a drive turbine (15), the rear side of the drive turbine (15) is connected with a transversely arranged drive worm (16) in a meshed mode, the left end and the right end of the drive worm (16) are fixedly installed on the rear side wall of the lower template mounting groove through a second bearing seat (17), the right end of the drive worm (16) is connected with a drive connecting rod (18), the right side wall of the lower template mounting groove is provided with a connecting rod through hole (19) through which the drive connecting rod (18) passes, and the right end of the drive connecting rod (18) extends out of the inner cavity of the lower template mounting groove through the connecting rod through hole (19) and is connected with an adjusting handle (20);

the lifting adjustment is realized by mutually matching the driving worm wheel (15) and the driving worm (16), controlling and driving the driving worm (16) to drive the driving worm wheel (15) to rotate through the external adjusting handle (20) by utilizing the unidirectional transmission characteristic of the driving worm (16), and converting the threaded matching of the lifting screw rod (12) and the rotating solenoid (13) into the lifting motion of the lifting mold core (10); the self-locking characteristic of the driving worm (16) prevents the lifting mold core (10) from automatically lifting and deviating under the condition of non-manual adjustment.

2. A deformable injection mould as claimed in claim 1, characterised in that: the upper template (3) and the lower template (8) are respectively fixed with the movable die fixing plate (1) and the fixed die fixing plate (2) through counter bore screws, and the counter bore screws are distributed along the circumferential edge arrays of the upper template (3) and the lower template (8).

3. A deformable injection mould as claimed in claim 1, characterised in that: the bottom of the guide post (7) is provided with a step flange, the guide post (7) is embedded in the top of the fixed die fixing plate (2), and the step flange is pressed tightly and fixed through a mounting pressing plate (21) sleeved on the outer wall of the guide post (7).

4. A deformable injection mould as claimed in claim 1, characterised in that: the upper and lower ports of the mold core through hole (9) are fixedly embedded with high-temperature-resistant sealing rings (22), and the inner rings of the high-temperature-resistant sealing rings (22) are in sealing fit with the outer wall of the lifting mold core (10).

5. A deformable injection mould as claimed in claim 1, characterised in that: ball bearings are arranged between the left end and the right end of the connecting rod through hole (19) and the driving connecting rod (18).

6. A deformable injection mould as claimed in claim 1, characterised in that: the outer side port of the connecting rod through hole (19) is provided with a dustproof end cover (23), the driving connecting rod (18) penetrates through the dustproof end cover (23), and the gap width between the upper part of the dustproof end cover (23) and the outer wall of the driving connecting rod (18) is smaller than 0.2 mm.

7. A deformable injection mould as claimed in claim 1, characterised in that: the bottom of the right side wall of the adjusting handle (20) is provided with a handle folding groove (24), and the bottom of the handle folding groove (24) is hinged with an expanding handle (26) through a pin (25).