CN210758788U - Improve mould that composite foamed material lacks material partially - Google Patents

Improve mould that composite foamed material lacks material partially Download PDF

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Publication number
CN210758788U
CN210758788U CN201921437376.3U CN201921437376U CN210758788U CN 210758788 U CN210758788 U CN 210758788U CN 201921437376 U CN201921437376 U CN 201921437376U CN 210758788 U CN210758788 U CN 210758788U
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pipeline
improving
mould
foaming
foaming material
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丁世林
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Shanghai Huagu Vehicle Industry Co ltd
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Shanghai Huagu Vehicle Industry Co ltd
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Abstract

The utility model relates to an improve mould of local scarce material of composite foam, composite foam include lower floor's material and set up the upper foam on the lower floor's material, and the mould includes the cope match-plate pattern and locates the lower bolster of cope match-plate pattern below, and the lower surface of cope match-plate pattern is equipped with the mold core, goes up the mold core and is equipped with a plurality of bosss. Compared with the prior art, the utility model can effectively improve the condition that the lower layer material is deformed and is attached to the upper template due to the influence of the pouring and foaming of the upper layer foaming material, thereby causing the local material shortage of the upper layer foaming material, and improving the qualification rate of the product; the utility model discloses simple structure, convenient operation is equipped with snakelike heat transfer pipeline that distributes, but the temperature of effective control foaming process is favorable to improving the stability of foaming process.

Description

Improve mould that composite foamed material lacks material partially
Technical Field
The utility model belongs to the technical field of automobile parts processing, a improve mould that composite foaming material is local to lack material is related to.
Background
At present, for the sound insulation pad of the front wall in the automobile, a multi-layer composite material is mostly adopted to ensure the functionality of the sound insulation pad, such as a Polyurethane (PUR) + polyethylene terephthalate (PET) + Ethylene Propylene Diene Monomer (EPDM) + polypropylene plastic foam material (EPP) structure, the PUR, the PET and the EPDM are mainly used for sound absorption and sound insulation of products, and EPP foot rest pads on two sides of a cockpit play a role in internal support so as to improve the comfort level of passengers. However, in the foaming process of the product, the surface of the EPP is attached to the upper mold wall in the mold under the influence of the PUR pouring pressure, which causes the influence of partial material shortage shown in FIG. 1 and increases the rejection rate of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a mould for improving the local shortage of composite foaming materials.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an improve mould of local lack of material of composite foam material, composite foam material include lower floor's material and set up the upper foam material on the lower floor's material, the mould include cope match-plate pattern and locate the lower bolster of cope match-plate pattern below, the lower surface of cope match-plate pattern be equipped with the mold core, the mold core in be equipped with a plurality of bosss with lower floor's material looks adaptation.
The utility model is used for improve lower floor's material and receive the influence of upper foam pouring pressure and produce deformation, and then lead to lower floor's material and the local laminating of cope match-plate pattern for the condition of maldistribution, local lack of material appears in upper foam. The utility model discloses when using, lower floor's material is arranged in on the lower bolster, closes cope match-plate pattern and pours upper foaming material, the height of boss and upper foaming material's design thickness looks adaptation for the boss can be used to support lower floor's material, prevents that the foaming material of upper foaming material foaming in-process from strikeing and leading to the local deformation of lower floor's material, prevents the condition that the upper foaming material that lower floor's material deformation caused lacks the material simultaneously, thereby improves the qualification rate of product.
The size of the boss is small, so that the volume of the upper-layer foaming material occupied by the boss part and the sectional area of the part are far smaller than the volume occupied by the deformation of the lower-layer material and the attaching area of the upper-layer foaming material and the upper template.
The bosses can be intensively arranged in the area where the lower layer material is easy to deform.
Furthermore, the die further comprises a positioning assembly, wherein the positioning assembly comprises a plurality of protrusions arranged at the bottom of the upper die plate and a plurality of blind holes arranged on the lower die plate and matched with the protrusions.
The bulges and the blind holes can be respectively arranged at the periphery of the upper template and the lower template, and the upper template and the lower template are positioned through the bulges and the blind holes, so that the relative sliding of the upper template and the lower template during processing is avoided.
Furthermore, a positioning bolt is arranged on the lower template and used for fixing the lower layer material.
Specifically, one end of the positioning bolt is fixed on the lower template, the other end of the positioning bolt penetrates through the lower layer of material and then is fixed on the lower template, machining allowance for positioning can be arranged at the corresponding position of the lower layer of material in advance, and a positioning hole can be machined in advance in the machining allowance to allow the positioning bolt to penetrate through.
Further, the die also comprises a base fixedly connected with the bottom of the lower template. The base is used for improving the stability of this mould.
Further, the die further comprises an upper die plate lifting mechanism, the upper die plate lifting mechanism comprises a plurality of telescopic hydraulic cylinders which are arranged on the base along the vertical direction, and the tops of the telescopic hydraulic cylinders are fixedly connected with the upper die plate. The upper template is driven to lift through the upper template lifting mechanism so as to realize the processes of opening and closing the mold.
Furthermore, the upper die plate is provided with a filling port, the filling port is communicated with an external foaming material storage tank, and the foaming material in a flowing state is filled into the die through the filling port and is foamed and expanded in the die to form an upper foaming material.
Further, the die further comprises a temperature control mechanism, wherein the temperature control mechanism comprises a heating assembly and a cooling assembly which are arranged in parallel.
Make the mould intensification to upper foam material's foaming temperature through the intensification subassembly, cool down the device through the cooling subassembly after the foaming, be convenient for later take out of processing material.
Furthermore, the heating assembly comprises a heating pipeline arranged in the upper template and a hot water tank communicated with the heating pipeline, a thermal connecting pipeline is arranged between the heating pipeline and the hot water tank, and a heating circulating pump is arranged on the thermal connecting pipeline. Water in the hot water tank is conveyed to the temperature rising pipeline through the heating circulating pump, and heat exchange with the upper template is realized through the temperature rising pipeline, so that the temperature of the upper template rises to the foaming temperature.
Further, the cooling assembly comprises a cooling pipeline arranged in the upper template and arranged in parallel with the heating pipeline and a cold water tank communicated with the cooling pipeline, a cold connecting pipeline is arranged between the cooling pipeline and the cold water tank, and a cooling circulating pump is arranged on the cold connecting pipeline. Water in the cold water tank is conveyed to the cooling pipeline through the cooling circulating pump, and heat exchange with the upper template is realized through the cooling pipeline, so that the temperature of the upper template is reduced.
The two ends of the heating pipeline or the cooling pipeline are respectively communicated with the corresponding hot water tank or the corresponding cold water tank, so that the heating medium or the cooling medium can be circulated, and the stability of heating or cooling temperature control of the die is improved.
Furthermore, the warming pipeline and the cooling pipeline are distributed in the upper template in a snake shape, so that the contact area of the warming pipeline or the cooling pipeline and the upper template is increased, and the heat transfer effect is enhanced.
The working principle is as follows: the utility model is used for improve the lower floor's material and produce deformation by the influence of upper foam material pouring pressure, and then lead to upper foam material and the local laminating of cope match-plate pattern, make upper foam material appear the condition of maldistribution, local starving;
the utility model discloses when using, lower floor's material is arranged in on the lower bolster, make the cope match-plate pattern descend through cope match-plate pattern elevating system, until cope match-plate pattern and lower bolster closure, the boss contacts with lower floor's material this moment, pour upper foaming material through the sprue, the work of intensification subassembly makes the cope match-plate pattern rise to the foaming temperature, begin foaming, the boss plays the supporting role this moment, prevent upper foaming material because the foaming material from strikeing the local deformation that leads to in the foaming process, prevent the condition that the upper foaming material that lower floor's material warp to cause lacks the material simultaneously, thereby improve the qualification rate of product, after the foaming, cooling subassembly work, after taking the mould to fall to the room temperature, through cope match-plate pattern elevating system lifting cope match-plate pattern, take out the work piece after the foaming, accomplish the.
Compared with the prior art, the utility model has the characteristics of it is following:
1) the utility model can effectively improve the condition that the lower layer material is deformed and is attached to the upper template due to the influence of the pouring and foaming of the upper layer foaming material, thereby leading to the local material shortage of the upper layer foaming material and improving the qualification rate of products;
2) the utility model discloses simple structure, convenient operation is equipped with snakelike heat transfer pipeline that distributes, but the temperature of effective control foaming process is favorable to improving the stability of foaming process.
Drawings
FIG. 1 is a schematic view of the condition of uneven distribution and partial material shortage of the upper layer foaming material caused by the deformation of the lower layer material;
FIG. 2 is a schematic structural view of a mold for improving local material shortage of composite foam material in the present invention;
fig. 3 is a schematic bottom view of the upper shuttering of the present invention;
FIG. 4 is a schematic structural diagram of the relative positions of the upper layer foaming material and the lower layer material in the foaming process of the present invention;
the notation in the figure is:
1-upper die plate, 2-lower die plate, 3-base, 4-boss, 5-bulge, 6-blind hole, 7-telescopic hydraulic cylinder, 8-upper die core, 9-heating pipeline, 10-cooling pipeline, 11-upper layer foaming material, 12-lower layer material and 13-injection port.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example (b):
as shown in fig. 2, fig. 3 and fig. 4, the mold for improving the local shortage of the composite foaming material includes a lower layer material 12 and an upper layer foaming material 11 arranged on the lower layer material 12, the mold includes an upper mold plate 1 and a lower mold plate 2 arranged below the upper mold plate 1, an upper mold core 8 is arranged on the lower surface of the upper mold plate 1, and a plurality of bosses 4 matched with the lower layer material 12 are arranged in the upper mold core 8.
When using, lower floor's material 12 is arranged in on lower bolster 2, closes upper die plate 1 and pours upper foam material 11, the height of boss 4 and upper foam material 11's design thickness looks adaptation for boss 4 can be used to support lower floor's material 12, prevents upper foam material 11 because foaming material impact the local deformation that leads to in the foaming process, prevents the condition that upper foam material 11 lacks the material that lower floor's material 12 warp to cause simultaneously, thereby improves the qualification rate of product.
The size of the boss 4 is small, so that the volume of the upper layer foaming material 11 occupied by the boss 4 part and the sectional area of the part are far smaller than the volume occupied by the deformation of the lower layer material 12 and the attaching area of the upper layer foaming material 11 and the upper template 1.
The bosses 4 may be concentrated in areas of the underlying material 12 that are susceptible to deformation.
The die further comprises a positioning assembly, wherein the positioning assembly comprises a plurality of protrusions 5 arranged at the bottom of the upper die plate 1 and a plurality of blind holes 6 which are arranged on the lower die plate 2 and matched with the protrusions 5.
The bulge 5 and the blind hole 6 can be respectively arranged at the periphery of the upper template 1 and the periphery of the lower template 2, the upper template 1 and the lower template 2 are positioned through the bulge 5 and the blind hole 6, and the relative sliding between the upper template 1 and the lower template 2 is avoided during processing.
And a positioning bolt is arranged on the lower template 2 and used for fixing the lower layer material 12.
Specifically, one end of the positioning bolt is fixed on the lower template 2, the other end of the positioning bolt penetrates through the lower layer material 12 and then is fixed on the lower template 2, a machining allowance for positioning can be arranged at a corresponding position on the lower layer material 12 in advance, and a positioning hole can be machined in advance in the machining allowance to allow the positioning bolt to penetrate through.
The mould also comprises a base 3 fixedly connected with the bottom of the lower template 2. The base 3 is used for improving the stability of the die.
The mould further comprises an upper mould plate lifting mechanism, the upper mould plate lifting mechanism comprises a plurality of telescopic hydraulic cylinders 7 which are arranged on the base 3 along the vertical direction, and the tops of the telescopic hydraulic cylinders 7 are fixedly connected with the upper mould plate 1. The upper template 1 is driven to lift through the upper template lifting mechanism so as to realize the processes of opening and closing the mold.
The upper die plate 1 is provided with a filling port 13, the filling port 13 is communicated with an external foaming material storage tank, and the flowing foaming material is filled into the die through the filling port 13 and is foamed and expanded in the die to form an upper foaming material 11.
The mold further comprises a temperature control mechanism, and the temperature control mechanism comprises a heating assembly and a cooling assembly which are arranged in parallel.
Make the mould heat up to the foaming temperature of upper foam material 11 through the intensification subassembly, cool down the device through the cooling subassembly after the foaming, be convenient for later take out of processing material.
The heating assembly comprises a heating pipeline 9 arranged in the upper template 1 and a hot water tank communicated with the heating pipeline 9, a thermal connecting pipeline is arranged between the heating pipeline 9 and the hot water tank, and a heating circulating pump is arranged on the thermal connecting pipeline. Water in the hot water tank is conveyed to the temperature rising pipeline 9 through the heating circulating pump, and heat exchange with the upper template 1 is realized through the temperature rising pipeline 9, so that the temperature of the upper template 1 rises to the foaming temperature.
The cooling assembly comprises a cooling pipeline 10 arranged in the upper template 1 and arranged in parallel with the warming pipeline 9 and a cold water tank communicated with the cooling pipeline 10, a cold connecting pipeline is arranged between the cooling pipeline 10 and the cold water tank, and a cooling circulating pump is arranged on the cold connecting pipeline. Water in the cold water tank is conveyed to the cooling pipeline 10 through the cooling circulating pump, and heat exchange with the upper template 1 is realized through the cooling pipeline 10, so that the temperature of the upper template 1 is reduced.
The two ends of the temperature rising pipeline 9 or the temperature lowering pipeline 10 are respectively communicated with the corresponding hot water tank or the corresponding cold water tank, so that the heating medium or the cooling medium can be circulated, and the stability of heating or cooling temperature control of the die is improved.
The warming pipeline 9 and the cooling pipeline 10 are distributed in the upper template 1 in a snake shape, so that the contact area between the warming pipeline 9 or the cooling pipeline 10 and the upper template 1 is increased, and the heat transfer effect is enhanced.
The working principle is as follows: the mould is used for improving the deformation of the lower layer material 12 caused by the influence of the pouring pressure of the upper layer foaming material 11, so that the upper layer foaming material 11 is locally attached to the upper mould plate 1, and the upper layer foaming material 11 is unevenly distributed and is locally lack of material;
when the die is used, the lower layer material 12 is placed on the lower die plate 2, the upper die plate 1 is lowered through the upper die plate lifting mechanism until the upper die plate 1 and the lower die plate 2 are closed, the boss 4 is contacted with the lower layer material 12 at the moment, the upper layer foaming material 11 is poured through the injection port 13, the upper die plate 1 is raised to the foaming temperature through the work of the heating assembly, foaming is started, the boss 4 plays a supporting role at the moment, the local deformation of the upper layer foaming material 11 caused by foaming material impact in the foaming process is prevented, meanwhile, the condition that the upper layer foaming material 11 is short of materials due to the deformation of the lower layer material 12 is prevented, the qualification rate of products is improved, after foaming is finished, the cooling assembly works, the upper die plate 2 is lifted through the upper die plate lifting mechanism after the die is lowered to the room temperature, the workpiece after foaming is taken.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims (10)

1. The utility model provides an improve mould of local lack of material of composite foam material, composite foam material include lower floor's material (12) and set up upper foam material (11) on lower floor's material (12), its characterized in that, the mould include cope match-plate pattern (1) and locate lower bolster (2) of cope match-plate pattern (1) below, the lower surface of cope match-plate pattern (1) be equipped with upper die core (8), upper die core (8) in be equipped with a plurality of and boss (4) of lower floor's material (12) looks adaptation.
2. The mold for improving the partial starvation of the composite foaming material according to claim 1, further comprising a positioning component, wherein the positioning component comprises a plurality of protrusions (5) arranged at the bottom of the upper mold plate (1) and a plurality of blind holes (6) arranged on the lower mold plate (2) and matched with the protrusions (5).
3. The mould for improving the partial starvation of the composite foaming material according to claim 1, wherein a positioning bolt matched with the lower layer material (12) is arranged on the lower template (2).
4. The mould for improving the partial starvation of the composite foaming material according to the claim 1, characterized in that the mould further comprises a base (3) fixedly connected with the bottom of the lower template (2).
5. The mold for improving the partial material shortage of the composite foaming material according to claim 4, further comprising an upper mold plate lifting mechanism, wherein the upper mold plate lifting mechanism comprises a plurality of telescopic hydraulic cylinders (7) which are vertically arranged on the base (3), and the tops of the telescopic hydraulic cylinders (7) are fixedly connected with the upper mold plate (1).
6. The mould for improving the partial starvation of the composite foaming material according to claim 1, wherein the upper mould plate (1) is provided with a feeding port (13).
7. The mold for improving the partial starvation of the composite foaming material according to claim 1, further comprising a temperature control mechanism, wherein the temperature control mechanism comprises a temperature rising component and a temperature lowering component which are arranged in parallel.
8. The mold for improving the partial starvation of the composite foaming material according to claim 7, wherein the heating assembly comprises a heating pipeline (9) arranged in the upper mold plate (1) and a hot water tank communicated with the heating pipeline (9), a thermal connecting pipeline is arranged between the heating pipeline (9) and the hot water tank, and a heating circulating pump is arranged on the thermal connecting pipeline.
9. The mold for improving the local shortage of the composite foaming material according to claim 8, wherein the cooling component comprises a cooling pipeline (10) arranged in the upper mold plate (1) and in parallel with the heating pipeline (9) and a cold water tank communicated with the cooling pipeline (10), a cold connecting pipeline is arranged between the cooling pipeline (10) and the cold water tank, and a cooling circulating pump is arranged on the cold connecting pipeline.
10. The mold for improving the local shortage of the composite foaming material according to claim 9, wherein the temperature rising pipeline (9) and the temperature reducing pipeline (10) are distributed in the upper mold plate (1) in a serpentine shape.
CN201921437376.3U 2019-08-29 2019-08-29 Improve mould that composite foamed material lacks material partially Active CN210758788U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921437376.3U CN210758788U (en) 2019-08-29 2019-08-29 Improve mould that composite foamed material lacks material partially

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921437376.3U CN210758788U (en) 2019-08-29 2019-08-29 Improve mould that composite foamed material lacks material partially

Publications (1)

Publication Number Publication Date
CN210758788U true CN210758788U (en) 2020-06-16

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ID=71058054

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Application Number Title Priority Date Filing Date
CN201921437376.3U Active CN210758788U (en) 2019-08-29 2019-08-29 Improve mould that composite foamed material lacks material partially

Country Status (1)

Country Link
CN (1) CN210758788U (en)

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