CN218557850U

CN218557850U - Injection molding runner plugging mechanism and mold

Info

Publication number: CN218557850U
Application number: CN202222534231.3U
Authority: CN
Inventors: 刘玉林; 魏长海; 孙福刚
Original assignee: Luxshare Precision Components Kunshan Co Ltd
Current assignee: Luxshare Precision Components Kunshan Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-03-03
Anticipated expiration: 2032-09-23
Also published as: TWM638002U

Abstract

The application relates to a runner shutoff mechanism and mould of moulding plastics, wherein, the runner shutoff mechanism of moulding plastics includes: the first female die plate is provided with an injection molding space; the runner assembly is provided with an injection molding runner communicated with the injection molding space and comprises a plugging block; the driving assembly is connected with the blocking block, and the blocking block is provided with a blocking state for blocking the injection molding runner and a communication state for communicating the injection molding runner. The technical scheme of this application has solved the problem that the efficiency that the mould among the prior art leads to because the vacancy of material when moulding plastics descends effectively.

Description

Injection molding runner plugging mechanism and mold

Technical Field

The application relates to the technical field of injection molding, in particular to an injection molding runner plugging mechanism and a mold.

Background

The precise automatic material-pulling plastic mold has a front-stage multi-process technology, and each stage of process can generate defective products, so that during automatic material-pulling injection molding, a plurality of NG materials can be generated in the same material disc. If 1PCS NG material (one material or one hole of material) exists, the mold monitor is triggered, so that the machine is alarmed and stopped. An operator is required to scrap the whole die manually, if the whole die of the die is 8 holes, 1PCS NG material exists, other 7PCS OK material is pulled off and scrapped, namely, the bad ratio is enlarged by 8 times, so that excessive waste of the material is caused, and the cost is increased. Meanwhile, the machine is stopped, and an operator operates the machine manually, so that the efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The application provides a runner shutoff mechanism and mould of moulding plastics to solve the problem of the efficiency decline that the mould among the prior art leads to because the vacancy of material when moulding plastics.

According to the application, a runner shutoff mechanism moulds plastics includes: the first female die plate is provided with an injection molding space; the runner assembly is provided with an injection molding runner communicated with the injection molding space and comprises a plugging block; the driving assembly is connected with the blocking block, and the blocking block is provided with a blocking state for blocking the injection molding runner and a communication state for communicating the injection molding runner.

Further, the runner assembly comprises a runner plate and a runner cover plate, the runner plate is located on one side, away from the injection molding part, of the injection molding space, the runner cover plate is arranged on one side, away from the injection molding part, of the runner plate, and the blocking block is movably arranged between the runner plate and the runner cover plate.

Furthermore, the injection molding flow channel comprises a first flow channel section penetrating through the flow channel plate, a second flow channel section penetrating through the blocking block and a third flow channel section penetrating through the flow channel cover plate, and when the blocking block is in a blocking state, the second flow channel section is communicated with the first flow channel section and the third flow channel section.

Further, the runner plate includes first plate section, second plate section and third plate section in the thickness direction, first plate section is installed in the space of moulding plastics, the plane of treating the injection molding is kept away from to first plate section flushes with the surface of first die block mutually, first runner section is located first plate section, the second plate section sets up the one side of keeping away from drive assembly at first runner section, the third plate section is located the one side of keeping away from drive assembly of second plate section, the runner apron sets up the surface at the second plate section and is located drive assembly's one side, the shutoff piece is located partially at least between first plate section and the runner apron.

Further, the blocking block comprises a plate body and a connecting block which are integrally formed, the connecting block is connected with the driving assembly, the second flow channel section is located on the plate body, the connecting block on one side, away from the flow channel plate, is higher than the plate body, and the connecting block is attached to the flow channel cover plate when the blocking block is in a blocking state.

Further, the injection molding runner plugging mechanism further comprises a second female die plate, and the second female die plate is located on one side, far away from the first female die plate, of the runner assembly.

Furthermore, the injection molding space is multiple, and the driving assembly and the runner assembly are multiple and correspond to the injection molding space one by one.

Furthermore, the runner shutoff mechanism of moulding plastics still includes the pipeline of moulding plastics, and the pipeline of moulding plastics includes import and a plurality of export, and the import setting is in the one side of keeping away from first female die plate of second female die plate, and a plurality of exports set up with runner assembly one-to-one.

Further, drive assembly includes cylinder structure and connecting rod, and the first end and the cylinder structure of connecting rod link to each other, and the second end and the shutoff piece of connecting rod link to each other.

According to another aspect of the application, a mold is further provided, and the mold comprises an injection molding flow channel plugging mechanism, and the injection molding flow channel plugging mechanism is the injection molding flow channel plugging mechanism.

By the aid of the technical scheme, the injection molding part is arranged in the injection molding space, the injection molding part to be injected in the injection molding space is detected, when the injection molding part to be injected is located in the injection molding space and has injection molding conditions, the injection molding runner of the runner assembly is in a communicated state, and injection molding is carried out. When the injection molding condition is detected not to be met in the injection molding space, for example, a piece to be injected in the injection molding space is detected, the injection molding runner is in a blocking state. This avoids a stoppage due to the fact that the part to be injected is not in the predetermined position. The technical scheme of this application has solved the problem that the efficiency that the mould among the prior art leads to because the vacancy of material when moulding plastics descends effectively.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 shows a schematic perspective view of an embodiment of an injection molding flow channel blocking mechanism of the present application;

fig. 2 shows a schematic internal structure diagram of the injection molding flow channel blocking mechanism of fig. 1;

fig. 3 shows a schematic perspective view of an injection molding runner of the injection molding runner blocking mechanism of fig. 1, which is matched with a part to be injected;

FIG. 4 shows a schematic cross-sectional view of the injection molding flow channel blocking mechanism of FIG. 1 in a connected state;

FIG. 5 shows a partially enlarged schematic view of the injection molding flow channel blocking mechanism of FIG. 4;

fig. 6 shows a schematic cross-sectional view of the injection molding flow path blocking mechanism of fig. 1 in a blocking state;

fig. 7 shows a partially enlarged schematic view of the injection molding flow channel blocking mechanism of fig. 6.

Wherein the figures include the following reference numerals:

10. a first master template; 20. a flow channel assembly; 21. a plugging block; 211. a second flow path segment; 22. a runner plate; 221. a first flow path segment; 23. a runner cover plate; 231. a third flow channel segment; 30. a drive assembly; 31. a cylinder structure; 32. a connecting rod; 40. a second master template; 50. and (5) injection molding the pipeline.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 7, the injection molding flow channel blocking mechanism of the present embodiment includes: a first mother template 10, a runner assembly 20 and a driving assembly 30. The first mother die plate 10 has an injection space. The runner assembly 20 has an injection molding runner communicating with an injection molding space, and the runner assembly 20 includes a block 21. The driving assembly 30 is connected with the blocking block 21, and the blocking block 21 has a blocking state for blocking the injection molding flow passage and a communication state for communicating the injection molding flow passage.

Use the technical scheme of this embodiment, treat that the injection molding setting is in the space of moulding plastics, detect the injection molding of treating in the space of moulding plastics, when detecting to treat that the injection molding is located the space of moulding plastics, possess the condition of moulding plastics, the runner of moulding plastics of runner assembly 20 is in the intercommunication state, moulds plastics. When the injection molding condition is detected not to be met in the injection molding space, for example, a piece to be injected in the injection molding space is detected, the injection molding runner is in a blocking state. This avoids a stoppage due to the fact that the part to be injected is not in the predetermined position. The technical scheme of this embodiment has solved the problem that the efficiency that the mould among the prior art leads to because the vacancy of material leads to when moulding plastics effectively. The waste of materials is also reduced through the arrangement of the blocking block 21.

It should be noted that the injection molding flow channel plugging mechanism further comprises a detection assembly. The detection assembly comprises a detector, and the detector is arranged corresponding to the injection molding space and used for detecting whether the piece to be injected is located in the injection molding space. The detection assembly mainly comprises a controller, an electronic valve, an optical fiber amplifier and sensing optical fibers (detectors), and is mainly used for setting a sensing range value of a sensing incoming material by utilizing a plurality of groups of sensing optical fibers according to a light reflection principle, and judging whether the sensing optical fibers are NG materials or not according to the sensing value (the NG materials are cut because AOI full detection is carried out at a previous work station, the presence or absence of the sensing materials is only needed at the section, the OK is represented by the sensing materials, and the NG is represented by the sensing absence of the sensing materials). Response optic fibre is automatic to be sensed anterior segment material and has NG material, takes notes NG material position, through optical fiber amplifier received signal after, the controller is given in the passback, and after the cavity got into mould cavity, the controller signals for the electronic valve, provides the signal for cylinder structure action. The driving assembly 30 is mainly used for pushing the blocking block 21 to block the injection runner and prevent the plastic from flowing into the mold cavity (injection space). The injection molding runner plugging mechanism of the embodiment does not occupy the layout of a mold, and has the advantages of small required space, simple structure and reliable action.

As shown in fig. 2, 3 and 4, in the solution of the present embodiment, the runner assembly 20 includes a runner plate 22 and a runner cover plate 23, the runner plate 22 is located on a side of the injection space away from the component to be injected, the runner cover plate 23 is located on a side of the runner plate 22 away from the component to be injected, and the block piece 21 is movably disposed between the runner plate 22 and the runner cover plate 23. The structure is compact in arrangement and convenient to operate. The injection molding runner can be communicated and blocked by moving the blocking block 21 between the runner plate 22 and the runner cover plate 23. When the detection assembly detects that the part to be injected is not located at the preset position, the blocking block 21 blocks.

As shown in fig. 2 and fig. 3, in the technical solution of the present embodiment, the injection molding runner includes a first runner section 221 penetrating through the runner plate 22, a second runner section 211 penetrating through the block 21, and a third runner section 231 penetrating through the runner cover plate 23, and when the block 21 is in the blocking state, the second runner section 211 communicates the first runner section 221 and the third runner section 231. The structure has low processing cost and convenient operation. Plugging can be achieved by staggering the second channel segment 211, the first channel segment 221 and the third channel segment 231. It should be noted that, in the technical solution of this embodiment, the inner diameter of the injection runner is reduced in the direction from the first runner section 221 to the third runner section 231, and the central axis of the first runner section 221, the central axis of the second runner section 211, and the central axis of the third runner section 231 are located on the same axis.

As shown in fig. 4, in the solution of this embodiment, the runner plate 22 includes a first plate section, a second plate section and a third plate section in the thickness direction, the first plate section is installed in the injection space, the plane of the first plate section away from the injection part to be injected is flush with the surface of the first mother template 10, the first runner section 221 is located on the first plate section, the second plate section is located on the side of the first runner section 221 away from the driving component 30, the third plate section is located on the side of the second plate section away from the driving component 30, the runner cover plate 23 is located on the surface of the second plate section and located on the side of the driving component 30, and the blocking block 21 is at least partially located between the first plate section and the runner cover plate 23. The structure has good supporting effect, the blocking block 21 moves more stably, and the sealing effect between the blocking block 21 and the runner plate 22 as well as between the blocking block and the runner cover plate 23 is good. The processing precision of shutoff piece 21, runner board 22 and runner apron 23 is higher, can realize sealed through the plane cooperation of above-mentioned three. The first plate section is provided with the sliding tray on the surface towards one side of shutoff piece 21, and the sliding tray is the same to the thickness of the height and the plate body on second plate section surface, is favorable to realizing sealed and cooperation precision like this.

As shown in fig. 2 and fig. 3, in the technical solution of this embodiment, the blocking block 21 includes a plate body and a connecting block that are integrally formed, the connecting block is connected to the driving assembly 30, the second flow channel segment 211 is located on the plate body, the connecting block is higher than the plate body on a side away from the flow channel plate 22, and when the blocking block 21 is located in the blocking state, the connecting block is attached to the flow channel cover plate 23. The above-mentioned structure of shutoff piece 21 both can realize being connected with connecting rod 32, can realize again that the spacing to shutoff piece 21 removes. Connecting rod 32 and connecting block detachably connect, and specifically, the upper surface of connecting block has the recess, and the one side of keeping away from cylinder structure 31 of recess has the mounting hole, has the necking down between the first end of connecting rod and the second end of connecting rod, and the second end of connecting rod is located the mounting hole. It should be noted that, when the plugging block 21 is in the plugging state, the plate body and the side surface of the second plate section close to the driving assembly 30 are attached to form a limit position, and when the plugging block 21 is in the communicating state, the gap between the connecting block and the flow channel cover plate 23 is 3mm, so that the moving distance of the plugging block 21 is 3mm. The fluid channel is of a frustum structure, and the diameter of the fluid channel is reduced from the direction far away from the part to be injected to the direction close to the part to be injected.

As shown in fig. 1, in the technical solution of this embodiment, the injection molding runner blocking mechanism further includes a second mother template 40, and the second mother template 40 is located on a side of the runner assembly 20 away from the first mother template 10. The second female mold plate 40 is arranged to effectively protect the runner assembly 20, the driving assembly 30, the injection molding pipeline 50 and the like, so that the runner assembly 20, the driving assembly 30 and the injection molding pipeline 50 are not easily damaged or dislocated. The surface of the third plate section remote from the second plate section is flush with the surface of the flow duct cover plate 23 remote from the second plate section.

As shown in fig. 2 and 3, in the solution of the present embodiment, there are a plurality of injection spaces, and the driving assemblies 30 and the runner assemblies 20 are both in one-to-one correspondence with the injection spaces. The structure improves the injection molding efficiency. Specifically, in the technical solution of the present embodiment, the number of the injection molding spaces is eight, and the number of the driving assemblies 30 and the number of the runner assemblies 20 are also eight correspondingly.

As shown in fig. 2 and fig. 3, in the technical solution of this embodiment, the injection molding flow channel blocking mechanism further includes an injection molding pipe 50, where the injection molding pipe 50 includes an inlet and a plurality of outlets, the inlet is disposed on a side of the second mother mold plate 40 away from the first mother mold plate 10, and the plurality of outlets are disposed in one-to-one correspondence with the flow channel assemblies 20. The provision of the injection molding duct 50 reduces the manufacturing cost, so that it is possible to dispense with the provision of the injection molding passage on the second mother die plate. It should be noted that the outlets are all arranged in parallel, so that the pressure uniformity of each outlet is ensured, and the influence between the outlets is small.

As shown in fig. 2 and 3, in the solution of the present embodiment, the driving assembly 30 includes a cylinder structure 31 and a connecting rod 32, a first end of the connecting rod 32 is connected to the cylinder structure 31, and a second end of the connecting rod 32 is connected to the blocking block 21. The structure has the advantages of low processing cost and convenient operation.

The application also provides a mold, which comprises the injection molding runner plugging mechanism, and the injection molding runner plugging mechanism is the injection molding runner plugging mechanism.

The application also provides an injection molding method, the injection molding method adopts the mold, and the injection molding method comprises the following steps: the detection assembly detects a piece to be injected; if the part to be injection molded is located at a normal position, injection molding is carried out; if the part to be injected is not detected, the driving component 30 drives the plugging block 21 to be in a plugging state; and (4) performing injection molding. The injection molding method can improve the injection molding efficiency. It should be noted that when the injection molding is a multipoint, one or more plugs are plugged, and the rest of the plugs meeting the injection molding requirement can be normally injected. The material of treating the injection molding in this application can be the plastic material, the metal material, the mixture of metal material and plastic material to and plastics material etc. and the above-mentioned material of treating the injection molding is merely enumerate and not exhaustive.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a runner shutoff mechanism moulds plastics which characterized in that includes:

a first female mold plate (10), the first female mold plate (10) having an injection molding space;

a runner assembly (20), the runner assembly (20) having an injection molding runner communicating with the injection molding space, the runner assembly (20) including a block piece (21);

drive assembly (30), drive assembly (30) with shutoff piece (21) link to each other, shutoff piece (21) have the shutoff state of the runner of moulding plastics with communicate the intercommunication state of the runner of moulding plastics.

2. An injection-molded flow channel blocking mechanism according to claim 1, characterized in that the flow channel assembly (20) comprises a flow channel plate (22) and a flow channel cover plate (23), the flow channel plate (22) being located at a side of the injection-molding space remote from the part to be injection-molded, the flow channel cover plate (23) being arranged at a side of the flow channel plate (22) remote from the part to be injection-molded, the blocking piece (21) being movably arranged between the flow channel plate (22) and the flow channel cover plate (23).

3. An injection molding runner plugging mechanism according to claim 2, wherein said injection molding runner comprises a first runner section (221) penetrating said runner plate (22), a second runner section (211) penetrating said plugging block (21), and a third runner section (231) penetrating said runner cover plate (23), said second runner section (211) communicating said first runner section (221) and said third runner section (231) when said plugging block (21) is in a plugging state.

4. An injection moulding flow channel blocking mechanism according to claim 3, characterized in that the flow channel plate (22) comprises in the thickness direction a first plate section, a second plate section and a third plate section, the first plate section is mounted in the injection moulding space, the plane of the first plate section facing away from the part to be injected is flush with the surface of the first female mould plate (10), the first flow channel section (221) is located on the first plate section, the second plate section is arranged on the side of the first flow channel section (221) facing away from the drive assembly (30), the third plate section is located on the side of the second plate section facing away from the drive assembly (30), the flow channel cover plate (23) is arranged on the surface of the second plate section and on the side of the drive assembly (30), and the blocking block (21) is at least partially located between the first plate section and the flow channel cover plate (23).

5. An injection molding flow channel blocking mechanism according to claim 3, wherein the blocking block (21) comprises an integrally formed plate body and a connecting block, the connecting block is connected with the driving assembly (30), the second flow channel section (211) is located on the plate body, the connecting block is higher than the plate body on the side far away from the flow channel plate (22), and when the blocking block (21) is located in the blocking state, the connecting block is attached to the flow channel cover plate (23).

6. An injection molding flow channel blocking mechanism according to claim 1, further comprising a second female mold plate (40), the second female mold plate (40) being located on a side of the flow channel assembly (20) remote from the first female mold plate (10).

7. An injection molding flow channel blocking mechanism according to claim 6, wherein the injection molding space is plural, and the driving component (30) and the flow channel component (20) are plural in one-to-one correspondence with the injection molding space.

8. An injection molding flow channel blocking mechanism according to claim 7, further comprising an injection molding pipe (50), wherein the injection molding pipe (50) comprises an inlet and a plurality of outlets, the inlet is arranged on the side of the second mother mold plate (40) far away from the first mother mold plate (10), and the plurality of outlets are arranged in one-to-one correspondence with the flow channel assemblies (20).

9. An injection molding flow channel blocking mechanism according to claim 1, characterized in that the driving assembly (30) comprises a cylinder structure (31) and a connecting rod (32), a first end of the connecting rod (32) being connected to the cylinder structure (31) and a second end of the connecting rod (32) being connected to the blocking block (21).

10. A mold, characterized in that the mold comprises an injection molding flow channel blocking mechanism, and the injection molding flow channel blocking mechanism is the injection molding flow channel blocking mechanism of any one of claims 1 to 9.