CN116533467B - Double-colored injection mold - Google Patents
Double-colored injection mold Download PDFInfo
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- CN116533467B CN116533467B CN202310468584.4A CN202310468584A CN116533467B CN 116533467 B CN116533467 B CN 116533467B CN 202310468584 A CN202310468584 A CN 202310468584A CN 116533467 B CN116533467 B CN 116533467B
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- rod
- jacking
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- plastic part
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- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000007306 turnover Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1742—Mounting of moulds; Mould supports
-
- 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
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
-
- 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
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
- B29C2045/1631—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations turrets fixed with regard to the machine frame
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, and particularly discloses a double-color injection mold, which comprises a rotary table, wherein the upper end of the rotary table is fixedly connected with a lower mold, the upper end of the lower mold is provided with an upper mold, a jacking plate jacking component is arranged below the lower mold, penetrates through the lower mold, contacts with the upper end of the inner surface of a delay groove under the rotation of an extension rod by taking a connecting rod as a fulcrum, thereby pushing the jacking rod to move upwards, increasing the lifting speed of the jacking rod, and by arranging a plurality of groups of jacking rods, the plurality of groups of connecting rods with different connecting positions with a bearing plate are mutually matched, when a plastic part is jacked, the jacking rod with different lifting speeds presents a wave motion track to break the plastic part off from the top end of the jacking rod, so that the jacking efficiency is increased, and by arranging an impact component, air is compressed in the process of the upward movement of the jacking rod, and then air is ejected to impact a plastic part obliquely upwards after the jacking groove, so that the demolding efficiency of the plastic part is further increased.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to a double-color injection mold.
Background
The double-color mold is a mold in which two plastic materials are molded on the same injection molding machine, and the double-color mold is molded in two times, and is usually composed of two sets of molds, wherein the back mold is rotated 180 degrees, the front mold is not moved, but the product is only ejected once. Typically this molding process is also known as two-shot molding;
after the plastic part is molded in the mold cavity, the mold cavity has large packing force due to expansion caused by heat and contraction caused by cold, so that the ejection system is required to eject the plastic part, and a mechanism for safely pushing the molded plastic part and the casting system solidifying material out of the mold without damage is called a demolding system, namely an ejection system or an ejection system;
the existing ejection system is characterized in that a round push rod penetrating through a die is used for ejecting a plastic part at a fixed speed, the ejection end of the round push rod is located inside a cavity, due to gaps between the round push rod and the die, little material flows into the gaps when the plastic part is not formed, after the plastic part is cooled, the plastic part is ejected by the round push rod, the material inside the gaps is subjected to the cooling to form a batch edge, the material is adhered to the ejection end of the round push rod under the action of packing force, and although a plurality of groups of round push rods can eject the plastic part out of the die, the material is adhered to the top end of the round push rod due to the existence of the batch edge, so that demolding fails.
Disclosure of Invention
The present invention is directed to a two-color injection mold, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the double-color injection mold comprises a rotary table, wherein the upper end of the rotary table is fixedly connected with a lower mold, the upper end of the lower mold is provided with an upper mold, and a jacking plate is arranged below the lower mold;
the jacking component penetrates through the lower die, the lower end of the jacking component is positioned on the surface of the jacking plate, and a plastic part on the surface of the lower die can be jacked up by adopting a wave motion track;
the impact assembly is positioned on the outer surface of the jacking assembly, generates gas when the jacking assembly moves, and utilizes the gas to impact the plastic part.
Preferably, the jacking subassembly includes the jacking pole, jacking pole lower extreme and jacking board upper end surface contact, the jacking groove has been seted up to bed die and jacking pole position that corresponds, the jacking pole is located jacking inslot portion, and two sliding connection, bed die lower extreme surface fixedly connected with loading board, the loading board is U font structural design, the jacking board is located loading board upper end surface, the surface that jacking board corresponds with the jacking pole is equipped with the connecting rod, the connecting rod surface rotates through the pivot and connects the turnover rod, the connection point of turnover rod and connecting rod is kept away from the jacking pole, turnover rod one end and jacking pole swing joint, the other end rotates through the pivot with the loading board and is connected, the connecting rod quantity is six groups, three groups in same one side are the slope and arrange.
Preferably, the overturning rod comprises a telescopic rod, the telescopic rod is rotationally connected with the bearing plate through a rotating shaft, one end, far away from the bearing plate, of the telescopic rod is provided with an extension rod, the telescopic rod is located inside the extension rod, and one end, far away from the telescopic rod, of the extension rod is movably connected with the jacking rod.
Preferably, the delay groove is formed in the position, corresponding to the lifting rod and the extension rod, of the extension rod, the guide groove is formed in the delay groove, the extension rod is located in the delay groove, the guide rod is fixedly connected to the position, corresponding to the guide groove, of the extension rod, the guide rod is of a cylindrical structural design, and the guide rod is located in the guide groove.
Preferably, the impact assembly comprises an accumulation groove, the accumulation groove is formed in the annular outer surface of the jacking groove, the accumulation plate is fixedly connected to the jacking rod at the corresponding position of the jacking groove, the accumulation plate and the jacking rod are of an integrated structural design, and the accumulation plate and the jacking rod are internally provided with drainage grooves which are of U-shaped structural design.
Preferably, the accumulation plate and the accumulation groove are matched with each other and kept sealed, the opening of the drainage groove close to the upper end of the jacking rod is of an inclined structure design, the number of the drainage grooves is four, and the drainage grooves are distributed around the central annular array of the jacking rod.
Preferably, the jacking assembly further comprises a sliding groove, the sliding groove is formed in the outer surface of the upper end of the jacking plate, the sliding block is connected inside the sliding groove in a sliding mode, the upper end of the sliding block is fixedly connected with the lower end of the connecting rod, the threaded rod is connected inside the sliding groove in a rotating mode through a rotating shaft, the threaded rod penetrates through the sliding block, the threaded rod is connected with the sliding block in a threaded mode, a penetrating groove is formed in the surface of the telescopic rod, and the connecting rod is fixedly connected with the sliding rod in a position corresponding to the penetrating groove.
Preferably, the penetrating groove is matched with the sliding rod, the sliding block and the sliding groove are of T-shaped structural design, and self-locking threads are adopted on the surface of the threaded rod.
The invention has at least the following beneficial effects:
according to the invention, when the jacking component is arranged to jack the plastic part, the jacking component is used as a fulcrum and is contacted with the upper end of the inner surface of the delay groove under the rotation of the extension rod, so that the jacking rod is pushed to move upwards, the lifting speed of the jacking rod is increased, a plurality of groups of jacking rods are arranged, the plurality of groups of connecting rods with different connecting positions of the bearing plate are matched with each other, the plastic part is struggled off from the top end of the jacking rod through the motion track of waves of the jacking rods with different lifting speeds when the plastic part is jacked, the jacking efficiency is increased, the impact component is arranged, air is compressed in the upward movement process of the jacking rod, and air is ejected to the obliquely upper side after the guiding groove stretches out of the jacking groove, so that the demoulding efficiency of the plastic part is further increased.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the explosion structure of the upper and lower molds of the present invention;
FIG. 3 is a schematic view of the impact assembly of the present invention;
FIG. 4 is a schematic view of a lift pin according to the present invention;
FIG. 5 is a schematic view of a jacking assembly according to the present invention;
FIG. 6 is a schematic view of an exploded view of a jack-up assembly of the present invention;
FIG. 7 is a schematic diagram of a distribution structure of multiple groups of connecting rods according to the present invention;
FIG. 8 is a schematic diagram of a second embodiment of the present invention;
FIG. 9 is a schematic diagram of a slider and a chute according to the present invention.
In the figure: 1. a rotary table; 10. an upper die; 11. a lower die; 12. a carrying plate; 13. a cavity; 2. a jacking assembly; 20. a jacking groove; 21. a lifting rod; 22. an extension rod; 221. a guide rod; 23. a telescopic rod; 231. a through groove; 24. a connecting rod; 241. a slide bar; 25. a jacking plate; 26. a delay slot; 27. a guide groove; 28. a chute; 281. a threaded rod; 29. a slide block; 3. an impact assembly; 30. an accumulation tank; 31. drainage grooves; 32. an accumulating plate; 4. and turning the rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: the double-color injection mold comprises a rotary table 1, wherein the upper end of the rotary table 1 is fixedly connected with a lower mold 11, a cavity 13 is formed in the outer surface of the upper end of the lower mold 11, an upper mold 10 is arranged at the upper end of the lower mold 11, a jacking plate 25 is arranged below the lower mold 11, and the lower end of the jacking plate 25 is driven to jack by a hydraulic rod;
the jacking component 2 penetrates through the lower die 11, the lower end of the jacking component 2 is positioned on the surface of the jacking plate 25, and a plastic part on the surface of the lower die 11 can be jacked up by adopting a wave motion track;
the impact assembly 3 is positioned on the outer surface of the jacking assembly 2, generates gas when the jacking assembly 2 moves, and impacts the plastic part by using the gas.
Preferably, the jacking component 2 comprises a jacking rod 21, the lower end of the jacking rod 21 is contacted with the upper end surface of a jacking plate 21, a jacking groove 20 is formed in the position, corresponding to the jacking rod 21, of the lower die 11, the jacking rod 21 is positioned in the jacking groove 20 and is in sliding connection with the jacking groove 20, a bearing plate 12 is fixedly connected to the outer surface of the lower end of the lower die 11, the bearing plate 12 is of a U-shaped structural design, the jacking plate 25 is positioned on the upper end surface of the bearing plate 12, a connecting rod 24 is arranged on the surface, corresponding to the jacking plate 25, of the jacking rod 21, the surface of the connecting rod 24 is rotationally connected with a turning rod 4 through a rotating shaft, the connecting point of the turning rod 4 and the connecting rod 24 is far away from the jacking rod 21, one end of the turning rod 4 is movably connected with the jacking rod 21, the other end of the turning rod is rotationally connected with the bearing plate 12 through the rotating shaft, the number of the connecting rod 24 is six groups, three groups on the same side are obliquely arranged, and when the hydraulic rod drives the jacking plate 25 to move upwards, the jacking rod 21 jacks up the plastic part in the cavity 13 along the jacking groove 20, in the jacking process, the overturning rod 4 is pushed by the connecting rod 24 by taking the connecting point of the overturning rod 4 and the bearing plate 12 as a fulcrum, so that the overturning rod 4 rotates to push the jacking rod 21 to jack up at a movement speed greater than that of the jacking plate 25 under the principle of a lever, the plastic part in the cavity 13 is jacked out, the distances between the three groups of connecting rods 24 and the bearing plate 12 on the same side are gradually increased, the positions of the three groups of connecting rods 24 and the overturning rod 4 in a rotating manner are also gradually increased, the jacking rod 21 has a wavy jacking effect when jacking the plastic part, and the jacking rod 21 mainly has the effect of enabling multiple groups of wave crests generated in the plastic part to be unevenly stressed under the jacking of different jacking rods 21, so that the plastic part is quickly and safely separated from the top end of the jacking rod 21, the plastic part is prevented from being struggled off when the jacking rod 21 is not needed to fall, and the plastic part is prevented from being impacted by the lower die 11.
Preferably, the turnover rod 4 comprises a telescopic rod 23, the telescopic rod 23 is rotationally connected with the bearing plate 12 through a rotating shaft, one end of the telescopic rod 23, far away from the bearing plate 12, is provided with an extension rod 22, the telescopic rod 23 is positioned inside the extension rod 22, one end of the extension rod 22, far away from the telescopic rod 23, is movably connected with the jacking rod 21, and when the turnover rod 4 rotates, the whole length of the turnover rod 4 is increased through the telescopic rod 23 and the extension rod 22, so that the pulling force received by the turnover rod 4 is increased.
Preferably, the delay groove 26 is formed at the position corresponding to the lifting rod 21 and the extension rod 22, the guide groove 27 is formed in the delay groove 26, the extension rod 22 is located in the delay groove 26, the guide rod 221 is fixedly connected to the position corresponding to the guide groove 27, the guide rod 221 is of a cylindrical structure design, the guide rod 221 is located in the guide groove 27, the guide rod 221 provides guidance for movement of the top point of the extension rod 22, the stability of rotation of the extension rod 22 is improved, when the lifting plate 25 moves upwards, the telescopic rod 23 and the extension rod 22 simultaneously start to rotate, the delay groove 26 is arranged, the extension rod 22 can be contacted with the upper end of the inner surface of the delay groove 26 only after rotating by a certain angle, so that the lifting rod 21 is pushed to accelerate ejection, the lifting rod 21 is directly pushed by the lifting plate 25 in the time of rotation of the extension rod 22, a plastic part can be uniformly ejected by force in the ejection stage, the plastic part is more effectively separated from the cavity 13 until the end of the extension rod 22 is contacted with the inner surface of the delay groove 26, and the top point of the lifting rod 21 moves to be separated from the top of the plastic part 21.
Preferably, the impact assembly 3 includes an accumulation groove 30, the accumulation groove 30 is formed on the annular outer surface of the jacking groove 20, the accumulation plate 32 is fixedly connected to the jacking rod 21 and is located at a position corresponding to the jacking groove 20, the accumulation plate 32 and the jacking rod 21 are integrally designed, the accumulation plate 32 and the jacking rod 21 are internally provided with a drainage groove 31, the drainage groove 31 is of a U-shaped structure, when the jacking rod 21 moves upwards, the accumulation plate 32 compresses air in the accumulation groove 30, the pressure in the air is increased, and after the drainage groove 31 is ejected from the jacking groove 20 near an opening of the top end of the jacking rod 21, the compressed air is ejected along the drainage groove 31 to form impact on the surface of a plastic part, so that the separation of the plastic part is accelerated.
Preferably, the accumulating plate 32 and the accumulating groove 30 are matched with each other and kept sealed, the opening of the drainage groove 31 close to the upper end of the jacking rod 21 is of an inclined structure design, the inclined design is beneficial to blowing the plastic part directly by gas, the quantity of the drainage grooves 31 is four groups, the drainage grooves are distributed around the central annular array of the jacking rod 21, and the drainage grooves are matched with the jacking rods 21 in multiple groups to increase the impact effect.
Example 2:
in the second embodiment, other structures are unchanged, the jacking component 2 further comprises a sliding groove 28, the sliding groove 28 is formed on the outer surface of the upper end of the jacking plate 25, a sliding block 29 is slidably connected in the sliding groove 28, the upper end of the sliding block 29 is fixedly connected with the lower end of the connecting rod 24, a threaded rod 281 is rotatably connected in the sliding groove 28 through a rotating shaft, the threaded rod 281 penetrates through the sliding block 29, the threaded rod 281 is in threaded connection with the sliding block 29, a penetrating groove 231 is formed on the surface of the telescopic rod 23, a sliding rod 241 is fixedly connected with the corresponding position of the penetrating groove 231, the fixed positions of the sliding block 29 and the connecting rod 24 can be changed through rotating the threaded rod 281, so that the connection position of the connecting rod 24 and the telescopic rod 23 can be adjusted, the sliding rod 241 slides along the penetrating groove 231, the position of the sliding block 29 moves along with the connecting rod 24, the rotating pivot of the extending rod 22 sliding in the delay groove 26 is changed, the rotating speed of the extending rod 22 is changed along with the rotating pivot of the principle of the lever, and the jacking component 2 can be more flexibly and more needs to adjust the lifting speed of each group of jacking rods 21.
Preferably, the through groove 231 and the sliding rod 241 are mutually matched, the sliding block 29 and the sliding groove 28 are of a T-shaped structure, so that sliding stability is improved, self-locking threads are adopted on the surface of the threaded rod 281, stability of the sliding block 29 is improved, and the position of the sliding block 29 is adjusted more accurately.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a double-colored injection mold, includes revolving stage (1), revolving stage (1) upper end fixedly connected with bed die (11), bed die (11) upper end is equipped with mould (10), its characterized in that: a jacking plate (25) is arranged below the lower die (11);
the jacking assembly (2) penetrates through the lower die (11), the lower end of the jacking assembly (2) is positioned on the surface of the jacking plate (25), and a plastic part on the surface of the lower die (11) is jacked up by adopting a wave motion track;
the impact assembly (3) is positioned on the outer surface of the jacking assembly (2), generates gas when the jacking assembly (2) moves, and impacts the plastic part by using the gas;
the jacking component (2) comprises a jacking rod (21), the lower end of the jacking rod (21) is in surface contact with the upper end of a jacking plate (25), a jacking groove (20) is formed in the position, corresponding to the jacking rod (21), of the lower die (11), the jacking rod (21) is located inside the jacking groove (20), the jacking rod and the jacking rod are in sliding connection, the bearing plate (12) is fixedly connected with the outer surface of the lower end of the lower die (11), the bearing plate (12) is of a U-shaped structural design, the jacking plate (25) is located on the upper end surface of the bearing plate (12), a connecting rod (24) is arranged on the surface, corresponding to the jacking plate (25), of the jacking rod (21), the surface of the connecting rod (24) is connected with a turning rod (4) through rotation of a rotating shaft, the connecting point of the turning rod (4) is far away from the jacking rod (21), one end of the turning rod (4) is movably connected with the jacking rod (21), the other end of the turning rod is connected with the bearing plate (12) through rotation of the rotating shaft, the number of the jacking rod (24) is six groups, three groups on the same side are in inclined arrangement, when the hydraulic rod drives the jacking plate (25) to move upwards, the jacking rod (21) moves upwards along the jacking rod (21) and jacks (13) along the jacking groove (13), in the jacking process, the overturning rod (4) is pushed by the connecting rod (24) by taking the connecting point with the bearing plate (12) as a fulcrum, so that the overturning rod (4) rotates to push the jacking rod (21) to be jacked upwards at a movement speed greater than that of the jacking plate (25) under the principle of a lever, a plastic part in the cavity (13) is jacked out, the distances between the three groups of connecting rods (24) on the same side and the bearing plate (12) are gradually increased, the positions of the three groups of connecting rods (24) and the overturning rod (4) in rotary connection are also gradually increased, the jacking rod (21) has a wave jacking effect when jacking the plastic part, so that multiple groups of wave crests generated in the plastic part are stressed unevenly under the jacking of different jacking rods (21), the plastic part is enabled to be quickly separated from the top end of the jacking rod (21), the plastic part is not required to be struggled off by the falling of the jacking rod (21), and the plastic part and the lower die (11) are prevented from being impacted.
2. The two-shot injection mold of claim 1, wherein: the turnover rod (4) comprises a telescopic rod (23), the telescopic rod (23) is rotationally connected with the bearing plate (12) through a rotating shaft, one end, far away from the bearing plate (12), of the telescopic rod (23) is provided with an extension rod (22), the telescopic rod (23) is located inside the extension rod (22), and one end, far away from the telescopic rod (23), of the extension rod (22) is movably connected with the jacking rod (21).
3. A two-shot injection mold according to claim 2, wherein: the lifting rod (21) is provided with a delay groove (26) at a position corresponding to the extension rod (22), the delay groove (26) is internally provided with a guide groove (27), the extension rod (22) is positioned in the delay groove (26), the guide rod (221) is fixedly connected to the position corresponding to the guide groove (27) of the extension rod (22), the guide rod (221) is of a cylindrical structural design, and the guide rod (221) is positioned in the guide groove (27).
4. The two-shot injection mold of claim 1, wherein: the impact assembly (3) comprises an accumulation groove (30), the accumulation groove (30) is formed in the annular outer surface of the jacking groove (20), the jacking rod (21) is fixedly connected with an accumulation plate (32) at the corresponding position of the jacking groove (20), the accumulation plate (32) and the jacking rod (21) are of an integrated structural design, the accumulation plate (32) and the jacking rod (21) are internally provided with a drainage groove (31), and the drainage groove (31) is of a U-shaped structural design.
5. The two-shot injection mold of claim 4, wherein: the accumulation plate (32) is matched with the accumulation groove (30) and keeps sealed, the opening of the drainage groove (31) close to the upper end of the jacking rod (21) is of an inclined structure design, and the number of the drainage grooves (31) is four groups and distributed around the central annular array of the jacking rod (21).
6. A two-shot injection mold according to claim 3, wherein: the jacking assembly (2) further comprises a sliding groove (28), the sliding groove (28) is formed in the outer surface of the upper end of the jacking plate (25), a sliding block (29) is connected inside the sliding groove (28) in a sliding mode, the upper end of the sliding block (29) is fixedly connected with the lower end of the connecting rod (24), a threaded rod (281) is connected inside the sliding groove (28) in a rotating mode through a rotating shaft, the threaded rod (281) penetrates through the sliding block (29), the threaded rod (281) is in threaded connection with the sliding block (29), a penetrating groove (231) is formed in the surface of the telescopic rod (23), and a sliding rod (241) is fixedly connected to the position, corresponding to the penetrating groove (231), of the connecting rod (24).
7. The two-shot injection mold of claim 6, wherein: the penetrating groove (231) is matched with the sliding rod (241), the sliding block (29) and the sliding groove (28) are of T-shaped structural design, and self-locking threads are adopted on the surface of the threaded rod (281).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310468584.4A CN116533467B (en) | 2023-04-24 | 2023-04-24 | Double-colored injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310468584.4A CN116533467B (en) | 2023-04-24 | 2023-04-24 | Double-colored injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116533467A CN116533467A (en) | 2023-08-04 |
| CN116533467B true CN116533467B (en) | 2024-03-08 |
Family
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120262A (en) * | 2000-10-16 | 2002-04-23 | Nissan Motor Co Ltd | Injection mold |
| CN107399058A (en) * | 2017-09-10 | 2017-11-28 | 健大电业制品（昆山）有限公司 | A kind of mould structure for accelerating ejection |
| EP3581360A1 (en) * | 2018-06-12 | 2019-12-18 | Haidlmair Holding GmbH | Injection moulding tool |
| CN114311556A (en) * | 2022-01-06 | 2022-04-12 | 宁波方正汽车模具股份有限公司 | Injection mold convenient to drawing of patterns |
| CN216804241U (en) * | 2021-12-27 | 2022-06-24 | 杭州欧记圣精密模架有限公司 | Prevent that finished product warp takes off model injection mold fast |
| CN217862561U (en) * | 2022-07-13 | 2022-11-22 | 广东浦禾电子有限公司 | Efficient injection mold of drawing of patterns |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2681168B1 (en) * | 2017-03-10 | 2019-06-21 | Comercial De Utiles Y Moldes Sa | Device for demolding negative in thermoplastic injection molds |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120262A (en) * | 2000-10-16 | 2002-04-23 | Nissan Motor Co Ltd | Injection mold |
| CN107399058A (en) * | 2017-09-10 | 2017-11-28 | 健大电业制品（昆山）有限公司 | A kind of mould structure for accelerating ejection |
| EP3581360A1 (en) * | 2018-06-12 | 2019-12-18 | Haidlmair Holding GmbH | Injection moulding tool |
| CN216804241U (en) * | 2021-12-27 | 2022-06-24 | 杭州欧记圣精密模架有限公司 | Prevent that finished product warp takes off model injection mold fast |
| CN114311556A (en) * | 2022-01-06 | 2022-04-12 | 宁波方正汽车模具股份有限公司 | Injection mold convenient to drawing of patterns |
| CN217862561U (en) * | 2022-07-13 | 2022-11-22 | 广东浦禾电子有限公司 | Efficient injection mold of drawing of patterns |
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| CN116533467A (en) | 2023-08-04 |
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