CN211763017U - Double-color injection mold convenient to demolding - Google Patents
Double-color injection mold convenient to demolding Download PDFInfo
- Publication number
- CN211763017U CN211763017U CN201921937765.2U CN201921937765U CN211763017U CN 211763017 U CN211763017 U CN 211763017U CN 201921937765 U CN201921937765 U CN 201921937765U CN 211763017 U CN211763017 U CN 211763017U
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- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 21
- 238000001746 injection moulding Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model provides a double-shot injection mold convenient to drawing of patterns, include: the fixed plate, fixed plate right-hand member rotates first movable mould of erection joint board and the fixed second movable mould of connecting plate right-hand member longitudinal symmetry, the first connecting block of fixed plate left end upper portion position installation, fixed first shutoff post of first connecting block right-hand member and second shutoff post and first shutoff post and second shutoff post all pass the connecting plate and the fixed plate and extend to inside the first movable mould, fixed plate left end lower part position installation second connecting block, outlet duct and thimble are fixed to second connecting block right-hand member, and outlet duct and thimble all pass the connecting plate and fixed plate and extend to inside the second movable mould, the utility model provides a double-colored injection mold convenient to drawing of patterns has the smooth and easy nature of drawing of patterns height, and is little to the harm of work piece, advantage that the quality of moulding plastics is high.
Description
Technical Field
The utility model relates to an injection mold technical field especially relates to a double-shot molding convenient to drawing of patterns mould.
Background
The double-color injection molding refers to that two kinds of plastics with different colors and different types are mostly matched by a soft plastic and a hard plastic, and the two kinds of plastics are effectively combined together to form a complete product by injection molding through a double-color injection molding machine according to a certain sequence.
The existing double-color injection mold can form vacuum in the mold core after processing, so that a workpiece is not easy to take out after being adsorbed in the mold core, and the ejector rod and the like can cause the workpiece to be white at the top and deform during demolding, so that demolding traces influence the appearance of the workpiece, the workpiece cannot reach the process standard, the material is wasted, and the production efficiency is influenced to a certain extent due to the difficulty in taking the material.
Therefore, it is necessary to provide a two-color injection mold for facilitating mold release to solve the above technical problems.
Disclosure of Invention
The utility model provides a double-shot injection mold convenient to drawing of patterns has solved double-shot injection mold and can form the vacuum in the die core after processing, leads to the work piece absorption to be difficult for taking out in the die core, and ejector pin etc. probably can make the work piece appear the top white, warp when the drawing of patterns, lead to the problem that the drawing of patterns vestige influences work piece outward appearance.
In order to solve the technical problem, the utility model provides a pair of double-shot injection mold convenient to drawing of patterns, include: the fixed plate, the fixed plate right-hand member rotates first movable mould of erection joint board and the fixed second movable mould of connecting plate right-hand member longitudinal symmetry, the first connecting block of fixed plate left end upper portion position installation, fixed first shutoff post of first connecting block right-hand member and second shutoff post and first shutoff post and second shutoff post all pass the connecting plate and the fixed plate and extend to inside the first movable mould, fixed plate left end lower part position installation second connecting block, outlet duct and thimble are fixed to second connecting block right-hand member, and outlet duct and thimble all pass the connecting plate and fixed plate and extend to inside the second movable mould, the fixed electronic jar in fixed plate left end, the fixed flat board of electronic jar right-hand member, dull and stereotyped right-hand member passes through first connecting post and second connecting post respectively with first connecting block and second connecting block erection joint.
Preferably, the number of the electric cylinders is two, the electric cylinders are fixedly connected with the left end of the fixing plate through L-shaped rods, and the electric cylinders are fixed at the left end of the flat plate in an up-down symmetrical mode.
Preferably, first spliced pole is equipped with two, two first spliced pole longitudinal symmetry is fixed at first splice left end, two in the first spliced pole left end extends to two first through-holes that dull and stereotyped inside was seted up respectively, two first spring of first spliced pole annular outer end equal suit and two first springs are all established between first splice and flat board, two the limiting plate is all fixed to first spliced pole left end, two the limiting plate is all established at the flat board left end.
Preferably, the annular outer end of the second connecting column is sleeved with a second spring, the second spring is arranged between the second connecting block and the flat plate, a step hole with a small left and a large right is formed in the middle of the second connecting block, the second connecting column is fixed at the right end of the flat plate, and the right end of the second connecting column extends into the step hole and is fixedly connected with the ejector pin.
Preferably, two guide rods are symmetrically fixed to the left end of the second connecting block from top to bottom, penetrate through two second through holes formed in the flat plate and extend to the left end of the flat plate.
Preferably, the number of the first plugging columns is two, the two first plugging columns are fixed at the right end of the first connecting block and are respectively arranged at the upper side and the lower side of the second plugging column, and the corresponding positions inside the fixed plate, the connecting plate and the first movable die are respectively provided with a third through hole for accommodating the first plugging column and a third through hole for accommodating the second plugging column.
Preferably, the outlet duct is equipped with two, two the outlet duct is all fixed and is established both sides about the thimble respectively at second connecting block right-hand member and two outlet ducts, thimble right-hand member rubber pad, the inside sixth through-hole that corresponds the position and all offer the fifth through-hole that is used for holding the outlet duct and is used for holding thimble and block rubber is moved to fixed plate, connecting plate and second movable mould, the third through-hole is the same with the fifth through-hole internal diameter, the fourth through-hole is the same with the sixth through-hole internal diameter.
Preferably, the upper end and the lower end of the second connecting block are respectively provided with an L-shaped groove, the outlets of the two L-shaped grooves extend to the right end of the second connecting block and are respectively aligned with the two air outlet pipes, the upper end, the lower end and the rear end of the second connecting block are wound with connecting pipes, the connecting pipes are closely attached to the two L-shaped grooves and are communicated with the two L-shaped grooves, and the rear ends of the connecting pipes are connected with the fan through pipes.
Preferably, a servo motor is fixed in the middle of the left end of the fixing plate, and an output shaft of the servo motor penetrates through the fixing plate and is fixedly connected with the left end of the connecting plate.
Compared with the prior art, the utility model provides a double-shot injection mold convenient to drawing of patterns has following beneficial effect:
the utility model provides a double-shot injection mold convenient to drawing of patterns, first shutoff post is the same with the outlet duct external diameter, second shutoff post is the same with the thimble external diameter, when moulding plastics for the first time, first shutoff post and second shutoff post are established inside first movable mould or second movable mould, with first shutoff post and second shutoff post change outlet duct and thimble into during the secondary is moulded plastics, the outlet duct can be to the inside clean space of carrying of first movable mould or second movable mould, remove the vacuum between complete work piece and first movable mould or the second movable mould, the cooperation thimble can be released the not damaged of work piece convenient from first movable mould or second movable mould, the smooth and easy nature of drawing of patterns has been improved.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of a two-color injection mold convenient for demolding according to the present invention;
FIG. 2 is a schematic view of the two-shot injection mold of FIG. 1 in a state in which the workpiece is ejected from the mold;
FIG. 3 is a schematic view of the two-color injection mold for facilitating demolding shown in FIG. 1, in a state where the first blocking column and the second blocking column are moved out;
fig. 4 is a schematic view of a second connecting block in the two-color injection mold for facilitating demolding shown in fig. 1.
Reference numbers in the figures: 1. first movable mould, 2, connecting plate, 3, fixed plate, 4, dull and stereotyped, 5, electronic jar, 6, second movable mould, 7, servo motor, 11, first shutoff post, 12, second shutoff post, 13, first connecting block, 14, first connecting post, 15, first spring, 61, outlet duct, 62, thimble, 63, rubber block, 64, the connecting tube, 65, the second connecting block, 66, the second connecting post, 67, the second spring, 81, first fixed membrane, 82, the second fixed membrane.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in which fig. 1 is a two-color injection mold for easy demolding; FIG. 2 is a schematic view showing a state in which a workpiece is pushed out; fig. 3 is a schematic diagram of the removed state of the first plugging column 11 and the second plugging column 12; fig. 4 is a schematic view of the second connecting block 65. Double-shot injection mold convenient to drawing of patterns includes: a fixed plate 3, a connecting plate 2 is rotatably installed at the right end of the fixed plate 3, a first movable mold 1 and a second movable mold 6 which are same in structure are vertically symmetrically fixed at the right end of the connecting plate 2, the first movable mold 1 and the second movable mold 6 are fixedly connected together through the connecting plate 2 and are convenient to drive the first movable mold and the second movable mold to rotate simultaneously, a first connecting block 13 is installed at the upper position of the left end of the fixed plate 3, a first plugging column 11 and a second plugging column 12 are fixed at the right end of the first connecting block 13, the first plugging column 11 and the second plugging column 12 penetrate through the connecting plate 2 and the fixed plate 3 and extend into the first movable mold 1, the first connecting block 13 is convenient to fixedly connect the first plugging column 11 and the second plugging column 12 together so as to facilitate the synchronous movement of the first plugging column 11 and the second plugging column 12, the first plugging column 11 and the second plugging column 12 are convenient to plug a hole in the first movable mold 1, so that a workpiece can be injection molded according to a required shape, a second connecting block 65 is installed at the lower part of the left end of the fixed plate 3, an air outlet pipe 61 and a thimble 62 are fixed at the right end of the second connecting block 65, the air outlet pipe 61 and the thimble 62 both penetrate through the connecting plate 2 and the fixed plate 3 and extend into the second movable die 6, the second connecting block 65 is convenient for fixedly connecting the air outlet pipe 61 and the thimble 62 together, the air outlet pipe 61 and the thimble 62 are convenient for synchronous movement, the air outlet pipe 61 is convenient for conveying air into the workpiece after the secondary injection molding is completed, the vacuum between the second movable die 6 and the workpiece is relieved, the workpiece can be conveniently pushed out from the inside of the second movable die 6 by matching with the thimble 62, an electric cylinder 5 is fixed at the left end of the fixed plate 3, a flat plate 4 is fixed at the right end of the electric cylinder 5, the right end of the flat plate 4 is respectively installed and connected with the, the flat plate 4, the first connecting block 13 and the second connecting block 65 are used for driving the first blocking column 11, the second blocking column 12, the air outlet pipe 61 and the ejector pin 62 to move left and right.
Two first connecting posts 14 are arranged, two first connecting posts 14 are symmetrically fixed at the left end of the first connecting block 13 from top to bottom, the left ends of the two first connecting posts 14 respectively extend into two first through holes formed in the flat plate 4, the annular outer ends of the two first connecting columns 14 are sleeved with first springs 15, the two first springs 15 are arranged between the first connecting block 13 and the flat plate 4, the left ends of the two first connecting columns 14 are fixed with limit plates, the two limit plates are arranged at the left end of the flat plate 4, the first connecting columns 14 are convenient for connecting the first connecting block 13 and the flat plate 4, the first springs 15 can be compressed, so that when the flat plate 4 moves to drive the first connecting block 13 to move and the first connecting block 13 moves to be jointed with the left end of the fixing plate 3, the flat plate 4 can continuously move rightwards, the limiting plate realizes the limiting function, and the first connecting column 14 is prevented from being separated from the flat plate 4.
Second connecting post 66 annular outer end suit second spring 67 and second spring 67 establish between second connecting block 65 and dull and stereotyped 4, the big step hole in little right side is seted up to second connecting block 65 intermediate position, second connecting post 66 is fixed at dull and stereotyped 4 right-hand member, second connecting post 66 right-hand member extends to step downthehole portion and with thimble 62 fixed connection, second connecting post 66 is convenient for second connecting block 65 and dull and stereotyped 4 be connected, second spring 67 can compress, thereby make dull and stereotyped 4 remove and to drive second connecting block 65 and remove, and when second connecting block 65 removed and fixed plate 3 left end laminating, dull and stereotyped 4 can drive thimble 62 and continue to move to the right, realize ejecting work piece.
Two guide rods are symmetrically fixed to the left end of the second connecting block 65 from top to bottom, penetrate through two second through holes formed in the flat plate 4 respectively and extend to the left end of the flat plate 4, and the guide rods achieve a guide function.
The outlet duct 61 is equipped with two, two outlet ducts 61 are all fixed at second connecting block 65 right-hand member and two outlet ducts 61 are established respectively in thimble 62 upper and lower both sides, thimble 62 right-hand member fixed rubber pad, fixed plate 3, the inside corresponding position of connecting plate 2 and second movable mould 6 all sets up the fifth through-hole that is used for holding outlet duct 61 and is used for holding the sixth through-hole of thimble 62 and rubber piece 63, the third through-hole is the same with the fifth through-hole internal diameter, the fourth through-hole is the same with the sixth through-hole internal diameter, outlet duct 61 is convenient for carry clean air between second movable mould 6 and the work piece, relieve the vacuum that exists between work piece and the second movable mould 6, cooperation thimble 62 is convenient for release the work piece, rubber piece 63's design avoids producing the rigidity collision with the work piece in addition, be convenient for protect.
The export in L-shaped groove and two L-shaped grooves is all seted up at both ends about second connecting block 65 all extends to second connecting block 65 right-hand member and aligns with two outlet duct 61 positions respectively, second connecting block 65 upper end, lower extreme and rear end winding have even pipe 64, even pipe 64 closely laminates and communicates with each other with two L-shaped grooves, even pipe 64 rear end is passed through the pipeline and is connected with the fan, the fan during operation passes through the pipeline with the air current and carries even pipe 64, then carry two outlet duct 61 respectively through two L-shaped grooves inside, and then carry inside second movable mould 6.
Fixed servo motor 7 of fixed plate 3 left end intermediate position, servo motor 7's output shaft pass fixed plate 3 and with connecting plate 2 left end fixed connection, servo motor 7 is convenient for drive second movable mould 6 and first movable mould 1 and rotates, is convenient for carry out the secondary and moulds plastics.
The utility model provides a double-shot injection mold's theory of operation convenient to drawing of patterns as follows:
as shown in fig. 1, at this time, the first blocking column 11 and the second blocking column 12 are both inserted into the first moving mold 1 to block the redundant cavities inside the first moving mold 1, then the personnel moves the first moving mold 1 and the second moving mold 6 to the right by using a moving structure such as a driving cylinder fixedly connected with the fixed plate 3, so that the first moving mold 1 and the second moving mold 6 are respectively matched with the first fixed film 81 and the second fixed film 82, a preliminary workpiece is injected inside the first moving mold 1 and the first fixed film 81, the first moving mold 1 and the second moving mold 6 are simultaneously moved to the right to separate the two from the first fixed film 81 and the second fixed film 82, then the personnel connects the power supply of the electric cylinder 5, and starts the electric cylinder 5 by using a control button, the electric cylinder 5 works to drive the flat plate 4 to move to the left, thereby driving the first connecting block 13, the second blocking column 12, the first blocking column 11, the second, The second connecting block 65, the thimble 62 and the air outlet tube 61 move leftward simultaneously, as shown in fig. 3, until the first connecting block 13, the second blocking column 12, the first blocking column 11, the second connecting block 65, the thimble 62 and the air outlet tube 61 are all moved out of the fixed plate 3, the electric cylinder 5 is stopped, then the power supply of the servo motor 7 is switched on, and the servo motor 7 is started by using the control button, the servo motor 7 operates to drive the connecting plate 2 to rotate, so as to drive the first movable mold 1 and the second movable mold 6 to rotate, the first movable mold 1 and the second movable mold 6 are stopped after rotating 180 degrees, at this time, the first movable mold 1 corresponds to the second fixed mold 82, the second movable mold 6 corresponds to the first fixed mold 81, then the personnel start the electric cylinder 5 again, and the electric cylinder 5 is used to drive the first blocking column 11, the second blocking column 12, the air outlet tube 61 and the thimble 62 to move to the initial state shown in fig. 1, then moving the fixed plate 3, the first movable mold 1 and the second movable mold 6 to the right to enable the first movable mold 1 and the second fixed film 82 to be matched, the second movable mold 6 and the first fixed film 81 to be matched, secondary injection molding is carried out on the primary workpiece inside the second movable mold 6 and the second fixed film 82 to form a complete workpiece, meanwhile, the first movable mold 1 and the first fixed film 81 are injected into the primary workpiece, then the first movable mold 1, the second movable mold 6 and the fixed plate 3 are moved leftwards synchronously to enable the first movable mold 1 and the second movable mold 6 to be separated from the second fixed film 82 and the first fixed film 81, then a fan connected with the connecting pipe 64 is started, the fan works to convey air flow into the connecting pipe 64 through a pipeline, then the connecting pipe 64 is conveyed into the air outlet pipe 61 through an L-shaped groove, the air flow is blown between the first movable mold 1 and the complete workpiece from the air outlet pipe 61, and the vacuum between the first movable mold 1 and, the workpiece is provided with a rightward driving force, meanwhile, a worker operates the electric cylinder 5 again to drive the flat plate 4 to move rightwards, the second connecting block 65 and the first connecting block 13 both move to the left end face of the fixing plate 3, so that the movement of the air outlet pipe 61, the first blocking column 11 and the second blocking column 12 is limited, the flat plate 4 drives the ejector pin 62 and the rubber block 63 to move rightwards through the second connecting column 66, as shown in fig. 2, the complete workpiece in the first movable die 1 is pushed out, then the worker moves the first blocking column 11, the air outlet pipe 61 and the like out of the fixing plate 3 through the electric cylinder 5 again, then the positions of the first movable die 1 and the second movable die 6 are changed through the servo motor 7, then primary workpieces in the second movable die 6 are subjected to secondary injection molding, and the like, and double-color injection molding of a plurality of workpieces is achieved.
Compared with the prior art, the utility model provides a double-shot injection mold convenient to drawing of patterns has following beneficial effect:
the outer diameters of the first blocking column 11 and the air outlet pipe 61 are the same, the outer diameters of the second blocking column 12 and the ejector pin 62 are the same, during primary injection molding, the first blocking column 11 and the second blocking column 12 are arranged inside the first movable mold 1 or the second movable mold 6, during secondary injection molding, the first blocking column 11 and the second blocking column 12 are replaced by the air outlet pipe 61 and the ejector pin 62, the air outlet pipe 61 can convey a clean space to the inside of the first movable mold 1 or the second movable mold 6, vacuum between a complete workpiece and the first movable mold 1 or the second movable mold 6 is relieved, rightward driving force is provided for the workpiece, the ejector pin 62 is matched to push the workpiece out of the first movable mold 1 or the second movable mold 6 conveniently and without damage, and demolding smoothness is improved.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a double-colored injection mold convenient to drawing of patterns which characterized in that includes: the fixed plate, the fixed plate right-hand member rotates first movable mould of erection joint board and the fixed second movable mould of connecting plate right-hand member longitudinal symmetry, the first connecting block of fixed plate left end upper portion position installation, fixed first shutoff post of first connecting block right-hand member and second shutoff post and first shutoff post and second shutoff post all pass the connecting plate and the fixed plate and extend to inside the first movable mould, fixed plate left end lower part position installation second connecting block, outlet duct and thimble are fixed to second connecting block right-hand member, and outlet duct and thimble all pass the connecting plate and fixed plate and extend to inside the second movable mould, the fixed electronic jar in fixed plate left end, the fixed flat board of electronic jar right-hand member, dull and stereotyped right-hand member passes through first connecting post and second connecting post respectively with first connecting block and second connecting block erection joint.
2. The double-color injection mold convenient for demolding as claimed in claim 1, wherein there are two electric cylinders, both of the two electric cylinders are fixedly connected with the left end of the fixing plate through an L-shaped rod, and the two electric cylinders are symmetrically fixed on the left end of the flat plate up and down.
3. The double-color injection mold convenient to demold of claim 1, wherein there are two first connection columns, two first connection columns are fixed at the left end of the first connection block in a vertically symmetrical manner, two first connection column left ends extend into two first through holes formed in the flat plate respectively, two annular outer ends of the first connection columns are sleeved with first springs, the two first springs are arranged between the first connection block and the flat plate, the two first connection column left ends are fixed with limiting plates, and the two limiting plates are arranged at the left end of the flat plate.
4. The double-shot injection mold convenient to drawing of patterns of claim 1, characterized in that, the annular outer end suit second spring of second spliced pole and second spring establish between second connecting block and flat board, the big step hole in little right side is seted up to second connecting block intermediate position, the second spliced pole is fixed at flat board right-hand member, second spliced pole right-hand member extends to the downthehole portion of step and with thimble fixed connection.
5. The double-color injection mold convenient for demolding as claimed in claim 1, wherein two guide rods are symmetrically fixed to the left end of the second connecting block from top to bottom, and the two guide rods respectively penetrate through two second through holes formed in the flat plate and extend to the left end of the flat plate.
6. The double-color injection mold convenient for demolding as claimed in claim 1, wherein there are two first plugging columns, two first plugging columns are fixed at the right end of the first connecting block and two first plugging columns are respectively arranged at the upper side and the lower side of the second plugging column, and a third through hole for accommodating the first plugging column and a fourth through hole for accommodating the second plugging column are arranged at corresponding positions inside the fixed plate, the connecting plate and the first movable mold.
7. The double-color injection mold convenient to demold of claim 6, wherein there are two outlet pipes, the two outlet pipes are fixed at the right end of the second connecting block, and the two outlet pipes are respectively arranged at the upper and lower sides of the ejector pin, the rubber pad is fixed at the right end of the ejector pin, a fifth through hole for accommodating the outlet pipe and a sixth through hole for accommodating the ejector pin and the rubber block are arranged at corresponding positions inside the fixed plate, the connecting plate and the second movable mold, the third through hole has the same inner diameter as the fifth through hole, and the fourth through hole has the same inner diameter as the sixth through hole.
8. The double-color injection mold convenient for demolding as claimed in claim 7, wherein the upper end and the lower end of the second connecting block are both provided with L-shaped grooves, outlets of the two L-shaped grooves extend to the right end of the second connecting block and are aligned with the two outlet pipes respectively, connecting pipes are wound around the upper end, the lower end and the rear end of the second connecting block, the connecting pipes are tightly attached to and communicated with the two L-shaped grooves, and the rear ends of the connecting pipes are connected with a fan through pipes.
9. The double-color injection mold facilitating demolding according to claim 1, wherein a servo motor is fixed in the middle of the left end of the fixing plate, and an output shaft of the servo motor penetrates through the fixing plate and is fixedly connected with the left end of the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937765.2U CN211763017U (en) | 2019-11-11 | 2019-11-11 | Double-color injection mold convenient to demolding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937765.2U CN211763017U (en) | 2019-11-11 | 2019-11-11 | Double-color injection mold convenient to demolding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211763017U true CN211763017U (en) | 2020-10-27 |
Family
ID=72963782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921937765.2U Expired - Fee Related CN211763017U (en) | 2019-11-11 | 2019-11-11 | Double-color injection mold convenient to demolding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211763017U (en) |
-
2019
- 2019-11-11 CN CN201921937765.2U patent/CN211763017U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |