CN220576511U - High-gloss injection molding die for lower grille of automobile bumper - Google Patents
High-gloss injection molding die for lower grille of automobile bumper Download PDFInfo
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- CN220576511U CN220576511U CN202322286998.3U CN202322286998U CN220576511U CN 220576511 U CN220576511 U CN 220576511U CN 202322286998 U CN202322286998 U CN 202322286998U CN 220576511 U CN220576511 U CN 220576511U
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- die
- injection molding
- injection
- mold
- automobile bumper
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 49
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000007792 addition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a high-gloss injection molding die for a lower grille of an automobile bumper, which comprises a die base, an injection lower die and an injection upper die, wherein the top end of the die base is fixedly connected with the injection lower die; in the process of die opening, the air pump ejector rod pushes the air pump body to move, so that air is compressed and conveyed to the air pressure pushing cavity through the air inflation pipeline, thrust is generated on the piston connecting block and the anti-sticking die bottom plate, and the lower grille can be pressed to prevent the lower grille from tilting.
Description
Technical Field
The utility model belongs to the technical field of injection molding dies, and relates to a high-gloss injection molding die for a lower grille of an automobile bumper.
Background
The plastic grating is generally formed by injection molding, and the grating mold in the prior art is generally arranged below the grating by a plurality of ejection blocks during ejection, but the single grating has longer length, so the grating is easy to be broken during ejection; patent number is CN202121849742.3 provides a high-grade passenger car and exempts from to spray accurate injection mold of air inlet grille, belongs to mould technical field. After the air inlet grille is subjected to injection molding, the multiple-stress-point ejection structure is contacted with the multiple gratings, so that the multiple gratings are stressed simultaneously, the gratings can be prevented from being broken during ejection, the single-point ejection structure can cooperate with the multiple-stress-point ejection structure to apply force to the gratings, the outer periphery and the logo mounting part of an air inlet grille product simultaneously, so that the stress on each part of the air inlet grille is uniform, and the single-point ejection structure and the multiple-stress-point ejection structure can be driven to act by the ejection assembly, so that the air inlet grille product can be ejected.
The injection molding die has the defects that the structural complexity of the grating is adopted, the ejection structure with multiple stress points is inevitably increased in the complexity of the overall structure, in addition, in the die opening process, after the injection molding raw materials are solidified, the grating is adhered to the upper die, the grating is easily pulled synchronously, and local stress is uneven, so that the high-gloss injection molding die for the lower grating of the automobile bumper is designed.
Disclosure of Invention
The utility model aims to provide a high-gloss injection molding die for a lower grille of an automobile bumper, so as to solve the problems in the background art.
The aim of the utility model can be achieved by the following technical scheme: the high-gloss injection molding mold for the automobile bumper lower grille comprises a mold base, an injection lower mold and an injection upper mold, wherein the top end of the mold base is fixedly connected with the injection lower mold, the top end of the injection lower mold is connected with the injection upper mold in a mold closing manner, mold opening connecting columns are fixedly installed on two sides of the top end of the injection upper mold, a crossbeam connecting rod is fixedly connected between the two mold opening connecting columns, a guide connecting sleeve is fixedly arranged in the middle of the crossbeam connecting rod, a center connecting column is installed in the middle of the top end of the injection upper mold, the center connecting column is connected with the guide connecting sleeve in a sleeved mode, an air pressure pushing cavity is formed in the center connecting column, and a lower grille injection molding cavity is formed in the injection lower mold;
the top of lower grid cavity of moulding plastics is equipped with the antiseized die bottom plate of being connected with the mould of moulding plastics, antiseized die bottom plate's top is equipped with the piston connection piece, piston connection piece and atmospheric pressure promote chamber piston connection, the one end fixed mounting of center spliced pole has the inflator connection pad body, the equal fixed mounting in both sides of inflator connection pad body bottom has the inflator body, two the equal contact of the end of inflating the barrel is connected with the ejector pin of inflating, two the ejector pin of inflating sets up in the both sides on direction adapter sleeve top, two the equal fixedly connected with inflation line of one end of inflating the barrel, two the equal and atmospheric pressure promotion chamber intercommunication of inflation line.
In the automobile bumper lower grille highlight injection molding mold, the middle part of the lower grille injection molding cavity bottom is provided with an ejection disc connected with the injection molding lower mold, the middle part of the ejection disc bottom is fixedly provided with an ejection oil cylinder, and the ejection oil cylinder is arranged at a groove of the injection molding lower mold bottom. The purpose of setting like this is after the die sinking, has good ejecting lower grid body of grid injection moulding cavity inside down, need not the manual demoulding.
In the automobile bumper lower grille highlight injection molding mold, the top end of the piston connecting block is fixedly connected with a telescopic connecting rod, and the telescopic connecting rod is arranged in the air pressure pushing cavity. The purpose that sets up like this is so that the piston connecting block can be located the inside of atmospheric pressure promotion chamber all the time and does not take place the separation, guarantees good atmospheric pressure and promotes the effect.
In the automobile bumper lower grille highlight injection molding die, one side of each of the two die-sinking connecting columns is fixedly provided with a die-sinking holding column. The purpose of this arrangement is to facilitate manual receipt of the operating die opening.
In the automobile bumper lower grille highlight injection molding die, hanging ring blocks are fixedly arranged at the top ends of the two die-opening holding columns. The purpose of setting like this is convenient for adopt tools such as electric hoist to carry out automatic die sinking.
In the high-gloss injection molding die for the automobile bumper lower grille, the length of the pumping stroke of the pumping cylinder and the height of the piston connecting block are both the height of the injection molding upper die. The purpose that sets up like this is guaranteed to inflate the barrel and reaches when the biggest stroke of inflating, and the mould can be separated certain distance with the injection lower mould on moulding plastics, makes things convenient for subsequent drawing of patterns operation, makes the cooperation that the piston connecting block can be better antiseized die bottom plate carry out spacingly to lower grid simultaneously.
Compared with the prior art, the high-gloss injection molding mold for the lower grille of the automobile bumper has the advantages that: the central connecting column, the cross beam connecting rod, the inflator connecting disc body, the anti-sticking die bottom plate, the piston connecting block, the telescopic connecting rod, the air pressure pushing cavity, the inflator body, the inflation pipeline and the inflation ejector rod are arranged; in the process of die sinking, the ejector pin of inflating promotes the barrel motion of inflating for the air is compressed and is carried the atmospheric pressure through the inflation pipeline and promote the chamber, produces thrust to piston connecting block and antiseized die bottom plate, can push down lower grid and prevent down the grid perk, and antiseized die bottom plate has non-viscosity, can not bond with the raw materials, effectively prevents down grid and mould synchronous motion on moulding plastics, after the die sinking is accomplished, through ejecting hydro-cylinder and ejecting lower grid of an ejection dish.
Drawings
Fig. 1 is a schematic perspective view of a molding die for high-gloss injection molding of a lower grille of an automobile bumper.
Fig. 2 is a schematic diagram of the internal structure of an injection molding lower mold of the automobile bumper lower grille highlight injection molding mold.
Fig. 3 is a schematic structural view of an inflation cylinder of a high-gloss injection molding die for a lower grille of an automobile bumper.
In the figure, 1, a die base; 2. injection molding a lower die; 3. injection molding an upper mold; 4. a central connection column; 5. a beam connecting rod; 6. opening a die connecting column; 7. opening a die and holding a column; 8. a hanging ring block; 9. inflator connecting disc body; 10. a lower grid injection molding chamber; 11. a mold-sticking-preventing bottom plate; 12. a piston connecting block; 13. a telescopic connecting rod; 14. an air pressure pushing cavity; 15. an ejection cylinder; 16. ejecting the disc; 17. a guide connecting sleeve; 18. an inflation cylinder; 19. an inflation pipeline; 20. and (5) inflating the ejector rod.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, 2 and 3, the high-gloss injection molding die for the automobile bumper lower grille comprises a die base 1, an injection lower die 2 and an injection upper die 3, wherein the top end of the die base 1 is fixedly connected with the injection lower die 2, the top end of the injection lower die 2 is in die locking connection with the injection upper die 3, die opening connecting columns 6 are fixedly arranged on two sides of the top end of the injection upper die 3, a crossbeam connecting rod 5 is fixedly connected between the two die opening connecting columns 6, a guide connecting sleeve 17 is fixedly arranged in the middle of the crossbeam connecting rod 5, a center connecting column 4 is arranged in the middle of the top end of the injection upper die 3, the center connecting column 4 is connected with the guide connecting sleeve 17 in a sleeved mode, an air pressure pushing cavity 14 is formed in the center connecting column 4, and a lower grille injection molding cavity 10 is formed in the injection lower die 2;
the top of the lower grid injection molding cavity 10 is provided with an anti-sticking die bottom plate 11 connected with the injection molding upper die 3, the top of the anti-sticking die bottom plate 11 is provided with a piston connecting block 12, the piston connecting block 12 is in piston connection with an air pressure pushing cavity 14, one end of a central connecting column 4 is fixedly provided with an inflator connecting disc body 9, two sides of the bottom end of the inflator connecting disc body 9 are fixedly provided with inflator barrels 18, the inflator ends of the two inflator barrels 18 are in contact connection with inflator push rods 20, the two inflator push rods 20 are arranged on two sides of the top end of a guide connecting sleeve 17, one ends of the two inflator barrels 18 are fixedly connected with inflation pipelines 19, and the two inflation pipelines 19 are communicated with the air pressure pushing cavity 14.
In this embodiment, as shown in fig. 2, in order to better eject the lower grill formed inside the lower grill injection molding chamber 10, the middle part of the bottom end of the lower grill injection molding chamber 10 is provided with an ejection disc 16 connected with the injection molding lower mold 2, the middle part of the bottom end of the ejection disc 16 is fixedly provided with an ejection cylinder 15, and the ejection cylinder 15 is disposed at a groove of the bottom end of the injection molding lower mold 2.
In this embodiment, as shown in fig. 2, in order to prevent the piston connecting block 12 from being separated, a telescopic link 13 is fixedly connected to the top end of the piston connecting block 12, and the telescopic link 13 is disposed inside the pneumatic push chamber 14.
In the present embodiment, as shown in fig. 1, for better automatic and manual mold opening, one side of each of the two mold opening connecting posts 6 is fixedly provided with a mold opening holding post 7; hanging ring blocks 8 are fixedly arranged at the top ends of the two die-opening holding columns 7.
In this embodiment, as shown in fig. 2 and 3, in order to ensure that the injection upper mold 3 can be separated from the injection lower mold 2 by a certain distance when the pumping cylinder 18 reaches the maximum pumping stroke, the pumping stroke length of the pumping cylinder 18 and the height of the piston connecting block 12 are both the height of the injection upper mold 3, which is convenient for the subsequent demolding operation.
Working principle: the injection upper die 3 adopts a side glue feeding mode, raw materials needed by the lower grille are melted and injected into the lower grille injection cavity 10 between the injection upper die 3 and the injection lower die 2, cooling and forming are carried out, an obstacle is arranged above the inflator connecting disc 9 in the die opening process to prevent the inflator connecting disc 9 from moving, the inflator ejector rod 20 pushes the inflator body 18 to move, air is compressed and conveyed to the air pressure pushing cavity 14 through the air charging pipeline 19, thrust is generated on the piston connecting block 12 and the anti-sticking die bottom plate 11, the lower grille is pressed to prevent the lower grille from tilting, the anti-sticking die bottom plate 11 is not sticky and can not be bonded with the raw materials, the lower grille is effectively prevented from synchronously moving with the injection upper die 3, and after die opening is completed, the lower grille is ejected through the ejection cylinder 15 and the ejection disc 16.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The high-gloss injection molding mold for the automobile bumper lower grille comprises a mold base (1), an injection lower mold (2) and an injection upper mold (3), and is characterized in that the top end of the mold base (1) is fixedly connected with the injection lower mold (2), the top end of the injection lower mold (2) is connected with the injection upper mold (3) in a mold closing manner, two mold opening connecting columns (6) are fixedly installed on two sides of the top end of the injection upper mold (3), a crossbeam connecting rod (5) is fixedly connected between the two mold opening connecting columns (6), a guide connecting sleeve (17) is fixedly arranged in the middle of the crossbeam connecting rod (5), a center connecting column (4) is installed in the middle of the top end of the injection upper mold (3), the center connecting column (4) is connected with the guide connecting sleeve (17) in a sleeved manner, an air pressure pushing cavity (14) is formed in the center connecting column (4), and a lower grille injection molding cavity (10) is formed in the injection lower mold (2);
the top of lower grid cavity (10) of moulding plastics is equipped with antiseized moulding plate (11) of being connected with mould (3) on moulding plastics, antiseized moulding plate (11)'s top is equipped with piston connecting block (12), piston connecting block (12) are with atmospheric pressure promotion chamber (14) piston connection, the one end fixed mounting of center spliced pole (4) has inflator connection pad body (9), the equal fixed mounting in both sides of inflator connection pad body (9) bottom has inflator body (18), two the equal contact of the end of inflating of inflator body (18) is connected with pump ejector pin (20), two pump ejector pin (20) set up in the both sides on direction adapter sleeve (17) top, two the equal fixedly connected with inflation line (19) of one end of inflator body (18), two inflation line (19) all are with atmospheric pressure promotion chamber (14) intercommunication.
2. The automobile bumper lower grille highlight injection molding die according to claim 1, wherein an ejection disc (16) connected with the injection molding lower die (2) is arranged in the middle of the bottom end of the lower grille injection molding cavity (10), an ejection oil cylinder (15) is fixedly arranged in the middle of the bottom end of the ejection disc (16), and the ejection oil cylinder (15) is arranged at a groove at the bottom end of the injection molding lower die (2).
3. The automobile bumper lower grille highlight injection molding die according to claim 1, wherein a telescopic connecting rod (13) is fixedly connected to the top end of the piston connecting block (12), and the telescopic connecting rod (13) is arranged in the air pressure pushing cavity (14).
4. The high-gloss injection molding die for the automobile bumper lower grille according to claim 1, wherein the die-opening holding posts (7) are fixedly arranged on one sides of the two die-opening connecting posts (6).
5. The high-gloss injection molding die for the automobile bumper lower grille according to claim 4, wherein hanging ring blocks (8) are fixedly arranged at the top ends of the two die-opening holding columns (7).
6. The high-gloss injection molding die for the automobile bumper lower grille according to claim 1, wherein the pumping stroke length of the pumping cylinder (18) and the height of the piston connecting block (12) are both the height of the injection upper die (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286998.3U CN220576511U (en) | 2023-08-23 | 2023-08-23 | High-gloss injection molding die for lower grille of automobile bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322286998.3U CN220576511U (en) | 2023-08-23 | 2023-08-23 | High-gloss injection molding die for lower grille of automobile bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220576511U true CN220576511U (en) | 2024-03-12 |
Family
ID=90119581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322286998.3U Active CN220576511U (en) | 2023-08-23 | 2023-08-23 | High-gloss injection molding die for lower grille of automobile bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220576511U (en) |
-
2023
- 2023-08-23 CN CN202322286998.3U patent/CN220576511U/en active Active
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