CN111923331B - Double-color injection mold for motorcycle tail lamp shade - Google Patents
Double-color injection mold for motorcycle tail lamp shade Download PDFInfo
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- CN111923331B CN111923331B CN202010673462.5A CN202010673462A CN111923331B CN 111923331 B CN111923331 B CN 111923331B CN 202010673462 A CN202010673462 A CN 202010673462A CN 111923331 B CN111923331 B CN 111923331B
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- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 122
- 239000003292 glue Substances 0.000 claims abstract description 100
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000001746 injection moulding Methods 0.000 claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
- B29C45/062—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction carrying mould halves co-operating with fixed mould halves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
- B29C2045/065—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction continuously rotating turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of injection molds, and particularly relates to a double-color injection mold for a motorcycle tail lamp shade. The invention provides a motorcycle tail lamp lampshade double-color injection mold aiming at the problems of sealing and demolding of a product back-off structure in the prior art, in particular to sealing during second color injection molding. According to the invention 1, the reverse-buckling glue sealing mechanism is arranged to directly seal glue on the reverse-buckling structure on the side surface of the product, especially on the product during second-color injection molding, and meanwhile, the reverse-buckling glue sealing mechanism is simple in structure and short in stroke, so that the production and manufacturing of a mold are facilitated, and the comprehensive cost is reduced.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to a double-color injection mold for a motorcycle tail lamp shade.
Background
The motorcycle tail lamp generally uses a double-color tail lamp cover, and the double-color tail lamp cover is a transparent part, so the requirement on the surface finish quality is high. It is common in the industry to use two-shot injection molds for processing. However, the shape of the lamp cover of the motorcycle tail lamp is special, and the sealing and demolding of the product reverse-buckling structure, especially the sealing during the second color injection molding, are a difficult problem in the industry. In the prior art, a mold for solving the demolding problem of the reverse buckling structure of the double-color injection mold is also disclosed, but the problem of sealing glue cannot be solved.
For example, the chinese patent application discloses a slider mechanism for a two-color injection mold [ application number: 201710676132.X ], the invention comprises a slider body, an inclined guide post, a containing groove arranged on the slider body, at least one elastic block arranged in the slider body, a sliding hole arranged on the slider body and an elastic piece arranged between the elastic block and the slider body, wherein in a free state, the inner end part of the elastic block protrudes out of the inner side surface of the containing groove, the inner end part of the elastic block is provided with a first driving inclined surface, and a guide space for containing and guiding the inclined guide post is formed between the elastic block and the containing groove.
The sliding block mechanism for the double-color injection mold solves the problems that the sliding block body cannot leave a product when a first color is opened and the sliding block body leaves the product in the mold opening action after the injection molding of a second color product is finished in the mold opening process of the double-color injection mold, but still cannot solve the problem of glue sealing during the injection molding of the double-color injection mold, particularly during the injection molding of the second color.
Disclosure of Invention
The invention aims to solve the problems and provides a double-shot injection mold for a motorcycle tail lamp cover.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a motorcycle tail lamp shade double-colored injection mold, includes first colored injection system and second colored injection system, first colored injection system and second colored injection system all include front mould and back mould, the front mould on set up the front mould mold insert, the back mould on set up the back mould mold insert, front mould mold insert and back mould mold insert between set up the core, one side of core set up the lug, one side that the front mould mold insert is close to the lug set up back-off rubber sealing mechanism, back-off rubber sealing mechanism and lug cooperate, back-off rubber sealing mechanism keep away from one side of lug and cooperate with the front mould, during the die sinking, back-off rubber sealing mechanism remove to the direction of keeping away from the core, during the compound die, back-off rubber sealing mechanism reset.
In foretell motorcycle tail lamp shade double-colored injection mold, the front mould mold insert set up the recess, back-off sealing mechanism pass through recess and front mould mold insert fixed connection, back-off sealing mechanism include two bullet piece fixed blocks that meet with the recess lateral wall respectively, set up the bullet piece between two bullet piece fixed blocks and set up a plurality of springs in the middle of the bullet piece.
In foretell motorcycle tail lamp shade double-colored injection mold, spring axle center department set up stop screw, the stop screw slant set up the one end that is close to the front mould mold insert at the bullet piece, stop screw one end and front mould mold insert fixed connection not connected with the bullet piece, two bullet piece fixed blocks all set up the gib block with the one side that the bullet piece meets, the bullet piece fixed block let to lead the formation inclined plane to one side of front mould mold insert.
In foretell motorcycle tail lamp shade double-colored injection mold, the bullet piece including sealing gluey portion and removal portion, seal gluey portion and lug cooperate, the half that seals gluey portion height and be not more than the removal portion, the removal portion one side of keeping away from sealing gluey portion set up inclined plane and moving base that resets, the inclined plane that resets on set up the bullet piece antifriction plate.
In foretell motorcycle tail lamp shade double-colored injection mold, the inside stop screw groove that sets up of removal portion, the stop screw groove be close to one side cover of recess bottom surface and establish the spring groove, removal portion both sides still set up the mounting groove respectively.
In the double-colored injection mold of motorcycle taillight lamp shade, the level of the joint of the reset inclined plane and the movable base is provided with a plurality of reset rods, and the reset rods penetrate through the movable part and are connected with the glue sealing part.
In foretell motorcycle tail lamp shade double-colored injection mold, the bullet piece bottom surface set up the bullet piece drag hook, the back mould mold insert on set up and carry out spacing drag hook to the bullet piece drag hook, the back mould mold insert on still set up the drag hook shifting chute, drag hook shifting chute both sides set up the antifriction plate.
In foretell motorcycle tail lamp shade double-colored injection mold, the first color back-off sealing mechanism that back-off sealing mechanism on setting up first color injection system included sets up back-off sealing mechanism on second color injection system and includes second color back-off sealing mechanism, second color back-off sealing mechanism still including setting up the glue sealing hot runner that is close to one side of back-off sealing mechanism at the front mould mold insert of second color injection system.
In the double-color injection mold for the motorcycle tail lamp cover, the rear mold insert is provided with corresponding sealing glue distribution channels, and the bottom surface of the sealing glue part of the second color reverse-buckling sealing glue mechanism can be respectively matched with the sealing glue distribution channels on the first color injection system and the second color injection system.
In the double-color injection mold for the motorcycle tail lamp cover, the glue inlet of the glue sealing runner is arranged at one end of the glue sealing part far away from the glue sealing hot runner, and the glue sealing part is provided with the flat sprue groove matched with the glue sealing runner.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the reverse-buckling glue sealing mechanism is arranged to directly seal glue on the reverse-buckling structure on the side surface of the product, especially the product during second-color injection molding, and meanwhile, the reverse-buckling glue sealing mechanism has the advantages of simple structure, short stroke, convenience for production and manufacturing of a mold and reduction of comprehensive cost.
2. According to the invention, the stable sealing and demolding strokes of the product are ensured through multiple arrangement positions, the precision is high under the condition of simple structure, and the first color injection molding system and the second color injection molding system are both provided with the reverse-buckling sealing mechanisms, so that the finished product quality of the product is further improved.
3. The invention also aims at the second color injection molding system to additionally arrange a hot runner, thereby further ensuring the quality of the molding surface of the product and effectively reducing the defective rate.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a partial schematic part view of the present invention;
FIG. 3 is a partial schematic part view of the present invention;
FIG. 4 is a partial schematic part view of the present invention;
FIG. 5 is a schematic view of FIG. 4 in another orientation;
FIG. 6 is a partial schematic part view of the present invention;
FIG. 7 is a partial schematic part view of the present invention;
FIG. 8 is a schematic view of FIG. 7 in another orientation;
FIG. 9 is a cross-sectional view of FIG. 7;
FIG. 10 is another cross-sectional view of FIG. 7;
FIG. 11 is a partial schematic detail view of the present invention;
FIG. 12 is a schematic structural view of a product of the present invention;
in the figure: the first color injection molding system 1, the second color injection molding system 2, the front mold 3, the rear mold 4, the front mold insert 5, the rear mold insert 6, the core 7, the projection 71, the back-off glue sealing mechanism 8, the groove 51, the elastic block fixing block 81, the elastic block 82, the spring 83, the limit screw 84, the guide strip 811, the guide inclined plane 812, the glue sealing part 821, the moving part 822, the reset inclined plane 823, the moving base 824, the elastic block wear plate 825, the limit screw groove 822a, the spring groove 822b, the mounting groove 822c, the reset rod 826, the elastic block draw hook 827, the limit draw hook 61, the draw hook moving groove 62, the wear plate 63, the first color back-off glue sealing mechanism 8a, the second color back-off glue sealing mechanism 8b, the glue sealing hot runner 85, the glue distributing channel 64, the flat gate groove 821a and the product 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, a motorcycle tail lamp lampshade double-color injection mold comprises a first color injection molding system 1 and a second color injection molding system 2, wherein the first color injection molding system 1 and the second color injection molding system 2 both comprise a front mold 3 and a rear mold 4, the front mold 3 is provided with a front mold insert 5, the rear mold 4 is provided with a rear mold insert 6, a mold core 7 is arranged between the front mold insert 5 and the rear mold insert 6, one side of the mold core 7 is provided with a convex block 71, one side of the front mold insert 5 close to the convex block 71 is provided with a back-off sealing mechanism 8, the back-off sealing mechanism 8 is matched with the convex block 71, one side of the back-off sealing mechanism 8, which is far away from the convex block 71, is matched with the front mold 3, during mold opening, the back-off sealing mechanism 8 moves in the direction far away from the mold core 7, and during mold closing, the back-off sealing mechanism 8 resets.
During the use, the double-colored injection mold of motorcycle tail lamp shade that this application provided, the compound die for the first time, the compound die of first color injection system 1, carry out first color injection, first color injection system 1's back-off sealing machine construct 8 reset to sealing the glue position under the cooperation of back mould mold insert 6 and front mould 3 and core 7. And (3) opening the mold for the first time after the injection molding is finished, moving the back-off glue sealing mechanism 8 towards the direction away from the mold core 7 and away from the convex block 71 to finish the demolding of the back-off position of the first-color injection molding part. And after the product 9 is opened, the first-color injection molding part is left in the rear mold 4, and the injection molding machine drives the rear mold 4 to rotate 180 degrees and is matched with the front mold 3 of the second-color injection molding system 2. And (5) carrying out secondary die assembly, and resetting the back-off glue sealing mechanism 8 of the second color injection molding system 2 to a glue sealing position for second color injection molding. And after the second-color injection molding is finished, opening the mold, separating the back-off glue sealing mechanism 8 of the second-color injection molding system 2 from the back-off of the product 9, and demolding and ejecting the product 9, namely finishing the injection molding.
As shown in fig. 3-6, the front mold insert 5 is provided with a groove 51, the back-off glue sealing mechanism 8 is fixedly connected with the front mold insert 5 through the groove 51, and the back-off glue sealing mechanism 8 includes two elastic block fixing blocks 81 respectively connected with the side walls of the groove 51, an elastic block 82 arranged between the two elastic block fixing blocks 81, and a plurality of springs 83 arranged in the middle of the elastic block 82. In the embodiment, the back-off glue sealing mechanism 8 is fixedly arranged in the groove 51 of the front mold insert 5, so that the space inside the mold is effectively saved, multiple times of debugging is not needed, and the continuous operation capability of the mold is improved. The elastic block fixing block 81 and the spring 83 are fixedly connected with the groove 51, when the mold is opened, the spring 83 drives the elastic block 82 to move, and the elastic block fixing block 81 guides the elastic block 82 to move towards the direction away from the mold core 7.
Specifically, a limit screw 84 is arranged at the axis of the spring 83, the limit screw 84 is obliquely arranged at one end of the elastic block 82 close to the front mold insert 5, one end of the limit screw 84, which is not connected with the elastic block 82, is fixedly connected with the front mold insert 5, guide strips 811 are arranged on the surfaces of the two elastic block fixing blocks 81, which are connected with the elastic block 82, and the elastic block fixing blocks 81 can be fixedly connected with the front mold insert 5 through screws.
The elastic block fixing block 81 is moved to one side of the front mold insert 5 to form a guide inclined surface 812. In order to make the stroke of the back-off glue sealing mechanism 8 smooth, the limit screw 84 is obliquely arranged in the direction away from the mold core 7 and is guided by the guide strip 811. The limit screw 84 limits the stroke of the spring 83, so as to limit the stroke of the elastic block 82 and ensure the stability of the stroke of the back-off glue sealing mechanism 8.
As shown in fig. 4-6, the bullet block 82 includes a glue sealing portion 821 and a moving portion 822, the glue sealing portion 821 is matched with the protrusion 71, the height of the glue sealing portion 821 is not greater than one half of the moving portion 822, a reset inclined surface 823 and a moving base 824 are disposed on one side of the moving portion 822 away from the glue sealing portion 821, and a bullet block wear plate 825 is disposed on the reset inclined surface 823. Because the temperature is higher during injection molding, in order to prevent the bullet piece 82 from being overheated and stuck in the mold, the glue sealing part 821 and the moving part 822 are arranged, and in order to prevent the glue sealing part 821 from excessively conducting heat to influence the reverse-buckling glue sealing mechanism 8, the height of the glue sealing part 821 is not more than one half of the moving part 822. Meanwhile, the sealing material 821 and the moving part 822 may be made of different materials. It will be understood by those skilled in the art that the glue segment 821 needs to engage the protrusion 71 in order to form the inverted structure of the product by injection molding. The upper end surface of the glue sealing part 821 may be provided with a limit groove, and the lower end surface of the glue sealing part 821 is provided with a frame groove of an inverted structure.
Referring to fig. 7 to 10, a limit screw groove 822a is formed in the moving portion 822, a spring groove 822b is sleeved on one side of the limit screw groove 822a close to the bottom surface of the recess 51, and mounting grooves 822c are formed on two sides of the moving portion 822. The stopper groove 822a has a short length in order to secure the driving force of the spring 83.
Further, in order to stabilize the stroke of the reverse-locking glue sealing mechanism 8, a plurality of reset rods 826 are horizontally arranged at the joint of the reset inclined surface 823 and the movable base 824, and the reset rods 826 penetrate through the movable part 822 and are connected with the glue sealing part 821.
Furthermore, a spring block draw hook 827 is arranged on the bottom surface of the spring block 82, a limiting draw hook 61 for limiting the spring block draw hook 827 is arranged on the rear mold insert 6, a draw hook moving groove 62 is further arranged on the rear mold insert 6, and wear-resisting plates 63 are arranged on two sides of the draw hook moving groove 62.
When the mold is opened, the front mold 3 and the rear mold 4 are separated, the elastic block 82 drives the elastic block wear-resisting plate 825 and the elastic block draw hook 827 to move backwards and downwards under the action of the spring 83 and the inclined plane of the elastic block fixing block 81, and then the glue sealing part 821 is separated from the product back-off; during the compound die, the inclined plane extrusion bullet piece antifriction plate 825 of front mould 3 drives bullet piece 82 and bullet piece drag hook 827 and moves up to one side under the effect on bullet piece fixed block 81 inclined plane to realize the location under the effect of bullet piece drag hook 827 and spacing drag hook 61, the bullet piece resets this moment.
The first-color back-off glue sealing mechanism 8a that the back-off glue sealing mechanism 8 arranged on the first-color injection molding system 1 comprises is arranged on the second-color injection molding system 2, and the back-off glue sealing mechanism 8 comprises a second-color back-off glue sealing mechanism 8b, wherein the first-color injection molding system 1 and the second-color injection molding system 2 can adopt a side glue inlet mode. In order to improve the surface injection molding quality of the product 9, the second color reverse-buckling glue sealing mechanism 8b further comprises a glue sealing hot runner 85 arranged on one side of the front mold insert 5 of the second color injection molding system 2 close to the reverse-buckling glue sealing mechanism 8. I.e. a partial glue feed from the undercut of the product 9.
The rear mold insert 6 is provided with corresponding sealing glue flow dividing channels 64, and the bottom surfaces of the sealing glue parts 821 of the second-color reverse-buckling sealing glue mechanism 8b can be respectively matched with the sealing glue flow dividing channels 64 on the first-color injection molding system 1 and the second-color injection molding system 2. The front mold 3 of the first and second injection molding systems 1 and 2 are different in structure, but the rear mold 4 is the same in structure.
More specifically, the glue inlet of the glue distributing runner 64 is disposed at one end of the glue sealing portion 821 far away from the glue distributing hot runner 85, and the glue sealing portion 821 is disposed with a flat gate slot 821a matched with the glue distributing runner 64. That is, the flat gate is used to partially fill and seal the product 9, and the sealing part 821 can be provided with a water path or a condenser tube for condensation.
The working principle of the invention is as follows: because the lateral wall system of product 9 has big and wide back-off, front mould mold insert 5 and core 7 between set up recess 51, set up back-off sealing glue mechanism 8 in the recess 51, the bullet piece 82 of back-off sealing glue mechanism 8 and the bullet piece fixed block 81 sliding connection of both sides, stop screw 84 fixes spring 83 between bullet piece 82 and front mould mold insert 5, set up bullet piece drag hook 827 and spacing drag hook 61 between bullet piece 82 below and back mould mold insert 6, spacing drag hook 61 both sides add antifriction plate 63, bullet piece 82 passes through antifriction plate 63 location. When the mold is opened, the elastic block 82 is guided by the elastic block fixing block 81 under the action of the spring 83 to move backwards and downwards, so that the glue sealing part 821 moves backwards and downwards, and the purpose of releasing the reverse buckle is achieved. When the mould is closed, the elastic block 82 is pressed by the elastic block wear plate 825, the front mould insert 5 and the rear mould insert 6, the spring 83 is pressed, the elastic block 82 is reset, and the product 9 is sealed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although terms such as the first color injection molding system 1, the second color injection molding system 2, the front mold 3, the rear mold 4, the front mold insert 5, the rear mold insert 6, the core 7, the protrusion 71, the undercut sealing mechanism 8, the groove 51, the elastic block fixing block 81, the elastic block 82, the spring 83, the limit screw 84, the guide strip 811, the guide slope 812, the sealing portion 821, the moving portion 822, the reset slope 823, the moving base 824, the elastic block wear plate 825, the limit screw groove 822a, the spring groove 822b, the mounting groove 822c, the reset rod 826, the elastic block 827, the drag hook 61, the drag hook moving groove 62, the wear plate 6, the first color undercut sealing mechanism 8a, the second color undercut sealing mechanism 8b, the sealing hot runner 85, the sealing runner manifold 64, the flat gate groove 821a, and the product 9 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (3)
1. The utility model provides a motorcycle tail lamp shade double-colored injection mold, includes first colored injection molding system (1) and second colored injection molding system (2), first colored injection molding system (1) and second colored injection molding system (2) all include front mould (3) and back mould (4), front mould (3) on set up front mould mold insert (5), back mould (4) on set up back mould mold insert (6), front mould mold insert (5) and back mould mold insert (6) between set up core (7), its characterized in that: one side of the core (7) is provided with a convex block (71), one side of the front mold insert (5) close to the convex block (71) is provided with a back-off glue sealing mechanism (8), the back-off glue sealing mechanism (8) is matched with the convex block (71), one side of the back-off glue sealing mechanism (8) far away from the convex block (71) is matched with the front mold (3), during mold opening, the back-off glue sealing mechanism (8) moves towards the direction far away from the core (7), during mold closing, the back-off glue sealing mechanism (8) resets, the back-off glue sealing mechanism (8) arranged on the first color injection molding system (1) comprises a first color back-off glue sealing mechanism (8 a), the back-off glue sealing mechanism (8) arranged on the second color injection molding system (2) comprises a second color back-off glue sealing mechanism (8 b), the second color back-off glue sealing mechanism (8 b) further comprises a hot runner (85) arranged on one side of the front mold insert (5) of the second color injection molding system (2) close to the back-off glue sealing mechanism (8),
the front mold insert (5) is provided with a groove (51), the back-off glue sealing mechanism (8) is fixedly connected with the front mold insert (5) through the groove (51), and the back-off glue sealing mechanism (8) comprises two elastic block fixing blocks (81) respectively connected with the side walls of the groove (51), an elastic block (82) arranged between the two elastic block fixing blocks (81) and a plurality of springs (83) arranged in the middle of the elastic block (82);
the elastic block (82) comprises a glue sealing part (821) and a moving part (822), the glue sealing part (821) is matched with the convex block (71), the height of the glue sealing part (821) is not larger than one half of the moving part (822), one side, far away from the glue sealing part (821), of the moving part (822) is provided with a reset inclined plane (823) and a moving base (824), the reset inclined plane (823) is provided with an elastic block wear-resisting plate (825),
a plurality of reset rods (826) are horizontally arranged at the joint of the reset inclined plane (823) and the movable base (824), the reset rods (826) penetrate through the movable part (822) and are connected with the sealing glue part (821),
the bottom surface of the elastic block (82) is provided with an elastic block drag hook (827), the rear mold insert (6) is provided with a limit drag hook (61) for limiting the elastic block drag hook (827), the rear mold insert (6) is also provided with a drag hook moving groove (62), both sides of the drag hook moving groove (62) are provided with wear-resisting plates (63),
the back mold insert (6) is provided with corresponding sealing glue flow dividing channels (64), the bottom surface of a sealing glue part (821) of the second color reverse-buckling sealing glue mechanism (8 b) can be respectively matched with the sealing glue flow dividing channels (64) on the first color injection molding system (1) and the second color injection molding system (2),
the glue inlet of the glue sealing runner (64) is arranged at one end of the glue sealing part (821) far away from the glue sealing hot runner (85), and the glue sealing part (821) is provided with a flat runner groove (821 a) matched with the glue sealing runner (64).
2. The motorcycle taillight lampshade bicolor injection mold of claim 1, characterized in that: spring (83) axle center department set up stop screw (84), stop screw (84) slant set up the one end that is close to front mould mold insert (5) at bullet piece (82), stop screw (84) one end and front mould mold insert (5) fixed connection not connected with bullet piece (82), two bullet piece fixed blocks (81) all set up gib block (811) with the one side that bullet piece (82) meet, bullet piece fixed block (81) let the position form direction inclined plane (812) to one side of front mould mold insert (5).
3. The motorcycle taillight lampshade bicolor injection mold of claim 1, characterized in that: the movable part (822) is internally provided with a limit screw groove (822 a), one side of the limit screw groove (822 a) close to the bottom surface of the groove (51) is sleeved with a spring groove (822 b), and two sides of the movable part (822) are respectively provided with a mounting groove (822 c).
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| CN202010673462.5A CN111923331B (en) | 2020-07-14 | 2020-07-14 | Double-color injection mold for motorcycle tail lamp shade |
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| CN202010673462.5A CN111923331B (en) | 2020-07-14 | 2020-07-14 | Double-color injection mold for motorcycle tail lamp shade |
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| CN111923331A CN111923331A (en) | 2020-11-13 |
| CN111923331B true CN111923331B (en) | 2022-11-08 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114750361B (en) * | 2021-12-08 | 2024-04-26 | 常州星宇车灯股份有限公司 | Sealing rubber insert structure of double-color mold and use method thereof |
| CN114347378B (en) * | 2021-12-31 | 2023-09-26 | 昆山市鸿毅达精密模具有限公司 | Double-color injection molding mold for automobile sealing strip |
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