CN115447078A - Mould of separation injection molding - Google Patents
Mould of separation injection molding Download PDFInfo
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- CN115447078A CN115447078A CN202211129381.4A CN202211129381A CN115447078A CN 115447078 A CN115447078 A CN 115447078A CN 202211129381 A CN202211129381 A CN 202211129381A CN 115447078 A CN115447078 A CN 115447078A
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- injection molding
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- mold
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 89
- 238000000926 separation method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000010008 shearing Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005266 casting Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
- B29C45/26—Moulds
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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
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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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
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold for separating injection molding parts, which comprises a movable mold and a fixed mold matched with the movable mold, wherein an injection molding part is arranged between the movable mold and the fixed mold, a locking mechanism for locking the injection molding part and a push rod for pushing the locking mechanism to move are arranged in the movable mold, a shearing mechanism, a first pushing mechanism and a second pushing mechanism are also arranged in the movable mold, when a locking assembly locks the injection molding part, the shearing mechanism shears the injection molding part and excess materials, when the push rod moves forwards and the locking of the injection molding part is released, the first pushing mechanism and the second pushing mechanism respectively push the injection molding part and the excess materials, so that the shearing and ejection of the whole injection molding part and the excess materials are realized, the manual separation process of the injection molding part and the excess materials is saved, the production efficiency of the injection molding part is improved, and the labor cost is reduced.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a mold for separating injection molding parts.
Background
With the rapid development of the industry, the mass production of plastic parts is improved. At present, plastic parts are mainly produced in an injection molding mode.
The injection molding piece is mainly molded by a mold in the preparation process. The existing mold comprises a movable mold 1 and a fixed mold 2 as shown in fig. 1, wherein molten materials are poured in a cavity between the movable mold 1 and the fixed mold 2 for cooling and molding, then a driving mechanism 61 is used for driving the movable mold 1 and the fixed mold 2 to be demolded, and finally a pushing mechanism is used for pushing a molded injection molding part out of the cavity.
The residual materials poured on the ejected injection molding parts are remained, the residual materials of the injection molding parts generally need to be cut off in a manual mode, the labor intensity is high, the labor cost is increased, and the mass production of the injection molding parts is not facilitated.
Therefore, how to design a mold for automatically separating the injection molding part and the remainder becomes a technical problem to be solved urgently by the people in the field.
Disclosure of Invention
In order to solve at least one technical problem mentioned in the background art, the invention aims to provide a mold for separating an injection molding part, which solves the problem of residual materials on the injection molding part and improves the production efficiency of the injection molding part.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a mould of separation injection molding, including the movable mould and with the cover half that the movable mould was mutually supported, be equipped with the locking mechanism and the top that are used for locking the injection molding in the movable mould and push away the push rod that locking mechanism removed, the push rod includes first top push face, second top push face, third top push face and the fourth top push face that offsets with locking mechanism, be equipped with the first thrustor that is used for pushing away the injection molding, push away the second thrustor of clout and realize the shearing mechanism that injection molding and clout were cuted in the movable mould, be equipped with the top push subassembly that pushes away first thrustor, second top push mechanism and shearing mechanism and push away, under the matched die state, top push subassembly with reserve first clearance between the shearing mechanism, top push subassembly with all reserve the second clearance between first top push mechanism and the second top push mechanism, first clearance is less than the second clearance, and when locking mechanism slides on the second top push face, top push subassembly with shear mechanism and shear the connection position that injection molding and clout offset and push away the mechanism respectively with the top push away.
Furthermore, an inwards-concave pouring cavity is formed in the movable mold, a fixed mold piece inserted into the pouring cavity is fixedly arranged on the fixed mold, the fixed mold piece is inserted into the pouring cavity in a mold closing state and forms a cavity for molding an injection molding piece, and a flow channel for pouring materials into the cavity is formed between the movable mold and the fixed mold.
Further, the runner includes sprue and runner, the runner with the die cavity intercommunication.
Furthermore, the movable die is provided with a locking groove communicated with the cavity, a sliding groove is formed in the rear side of the locking groove, the locking mechanism comprises a locking plate which slides in the locking groove, a pressing plate which extends to the inside of the sliding groove is fixedly arranged on the locking plate, a first spring is fixedly arranged between the side wall of the sliding groove and the pressing plate, and the locking plate is completely accommodated in the locking groove in a die closing state.
Further, the first pushing surface and the third pushing surface are arranged in an inclined mode, and a guide surface abutting against the first pushing surface or the third pushing surface is arranged at the end portion of the locking plate.
Furthermore, a first pushing chamber communicated with the cavity is arranged in the movable die, the first pushing mechanism comprises a first pushing piece which slides in the first pushing chamber and extends into the cavity, and a second spring used for resetting the first pushing piece is fixedly arranged between the first pushing piece and the inner wall of the first pushing chamber.
Furthermore, a second pushing chamber communicated with the main runner is arranged in the movable die, the second pushing mechanism comprises a second pushing piece which slides in the second pushing chamber and extends into the main runner, and a third spring for resetting the second pushing piece is arranged between the second pushing piece and the inner wall of the second pushing chamber.
Furthermore, a second pushing channel which is located on the rear side of the sub-channel and communicated with the sub-channel is arranged in the movable die, the shearing mechanism comprises a shearing knife which slides in the second pushing channel, and a fourth spring for resetting the shearing knife is fixedly connected between the shearing knife and the inner wall of the second pushing channel.
Further, the pushing assembly comprises a pushing plate which slides back and forth, a first pushing column, a second pushing column and a shearing rod which respectively extend to the first pushing chamber, the second pushing chamber and the second pushing channel are fixedly arranged on the pushing plate, in a die assembly state, a gap between the shearing rod and the shearing knife is a first gap, and a gap between the first pushing column and the first pushing piece and a gap between the second pushing column and the second pushing piece are second gaps.
Furthermore, a first pushing channel which penetrates through the movable die from front to back is arranged in the movable die, the locking groove is communicated with the first pushing channel, the push rod is slidably installed in the first pushing channel, one end of the push rod is fixed with the pushing plate, and the locking plate extends into the first pushing channel and abuts against the first pushing surface in a die closing state.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, in the state that the movable mold and the fixed mold are separated, the first pushing surface of the push rod is used for pushing the locking mechanism, the injection molding piece in the movable mold is fixed, at the moment, the first gap between the pushing component and the shearing mechanism is eliminated and is abutted against the shearing mechanism, when the push rod continues to push forwards, the locking mechanism keeps locking the injection molding piece, at the moment, the shearing mechanism moves forwards and cuts the position where the injection molding piece is connected with the residual material, the push rod continues to move forwards, the locking mechanism is abutted against the third pushing surface and resets the locking mechanism, when the locking mechanism moves to the position where the third pushing surface is contacted with the fourth pushing surface, at the moment, the second gap between the pushing component and the first pushing mechanism and the second pushing mechanism is eliminated, at the moment, when the push rod continues to move forwards, the first pushing mechanism and the second pushing mechanism move forwards and respectively push the injection molding piece and the residual material out of the movable mold, the injection molding piece and the residual material are separated from the movable mold, and the separation of the injection molding piece from the residual material is realized, the process of manually separating the injection molding piece from the residual material is reduced, and the production efficiency of the injection molding piece is improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional mold;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural diagram of a moving mold and a fixed mold according to the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is an enlarged partial schematic view of FIG. 3;
FIG. 6 is a cross-sectional view of the present invention;
FIG. 7 is an enlarged view of A in FIG. 6;
FIG. 8 is a schematic view of the cutting process of the injection molded part of the present invention;
FIG. 9 is a schematic view of the ejection process of the injection molded part of the present invention;
fig. 10 is a schematic view of the locking mechanism of the present invention.
In the figure: 1. moving the mold; 11. a main module; 111. pouring a cavity; 112. a cavity; 1121. a receiving groove; 113. a locking groove; 114. a chute; 115. positioning holes; 12. a secondary module; 13. a first pushing channel; 14. a first pushing chamber; 15. a second pushing channel; 16. a second pushing chamber; 2. fixing a mold; 211. shaping a profile; 212. a main flow channel; 213. a shunt channel; 214. a positioning column; 215. pouring a mouth; 3. positioning a plate; 31. a through hole; 4. a support member; 5. pushing the plate; 51. a top pillar; 61. a drive mechanism; 62. a machine platform; 7. a guide post; 71. a return spring; 8. a push rod; 81. a first push surface; 82. a second push surface; 83. a third pushing surface; 84. a fourth pushing surface; 9. a shearing knife; 91. a shear bar; 10. a first push column; 17. a second pushing column; 101. a lock plate; 1011. a guide surface; 102. pressing the plate; 103. a first spring; 201. a first ejector; 2011. pushing the push head; 202. a second spring; 203. a second ejector; 204. a third spring; 205. and a fourth spring.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a mould of separation injection molding, the separation of injection molding and clout in the mainly used mould improves the production efficiency of injection molding, reduction in production cost.
As shown in fig. 1 and 2, the mold includes a movable mold 1 and a fixed mold 2 that is matched with the movable mold 1, two support members 4 that are fixed by bolts are fixedly arranged on the rear side of the movable mold 1, a positioning plate 3 that is fixed by bolts is arranged on the support members 4, and a driving mechanism 61 is fixedly arranged on the rear side of the positioning plate 3, in this embodiment, the driving mechanism 61 is a telescopic rod for driving the positioning plate 3 and the movable mold 1 to move backwards, so that the fixed mold 2 and the movable mold 1 are separated from each other.
As shown in fig. 3, an inwardly recessed pouring cavity 111 is formed in the movable mold 1, an outwardly protruding shaped part 211 is formed in the fixed mold 2, and when the shaped part 211 is inserted into the pouring cavity 111, as shown in fig. 6 and 7, a cavity 112 for molding an injection molding part is formed between the shaped part 211 and the pouring cavity 111.
In order to make the casting solution flow into the cavity 112, in this embodiment, as shown in fig. 7, when the fixed mold 2 and the movable mold 1 are closed, a main channel 212 is formed between the fixed mold 2 and the movable mold 1, a branch channel 213 is provided between the main channel 212 and the cavity 112, as shown in fig. 6, a casting opening 215 communicating with the main channel 212 is provided on the fixed mold 2, and at this time, the casting solution of the injection molding machine sequentially passes through the casting opening 215, the main channel 212, and the branch channel 213 to enter the cavity 112, and then the injection molding is cooled and molded in the cavity 112.
In the present embodiment, as shown in fig. 1 and 2, since the support member 4 is installed between the positioning plate 3 and the movable mold 1, a space is reserved between the positioning plate 3 and the movable mold 1;
in order to eject an injection molding piece formed in the cavity 112 outwards, a pushing assembly capable of moving back and forth is arranged in a space between the positioning plate 3 and the movable mold 1, as shown in fig. 1, a through hole 31 is formed in the positioning plate 3, and a top column 51 extending backwards through the through hole 31 is fixedly arranged on the pushing assembly, wherein the whole injection molding machine comprises a machine table 62 located at the rear side of the top column 51, a gap is reserved between the top column 51 and the machine table 62 in an initial state, when the positioning plate 3 and the movable mold 1 move backwards under the action of a telescopic rod, the movable mold 1 and the fixed mold 2 are opened, the top column 51 abuts against the machine table 62, when the telescopic rod continues to drive the movable mold 1 to move backwards, the pushing assembly moves forwards relative to the movable mold 2, and then the injection molding piece inside the cavity 112 is pushed outwards.
In the present embodiment, as shown in fig. 4 and 5, the pushing assembly includes a pushing plate 5 and a pushing column installed on the front side of the pushing plate 5. Wherein, the top column 51 is fixedly arranged at the rear side of the top pushing plate 5.
In order to realize the resetting of the ejector plate 5 and guide the back and forth movement of the ejector plate 5, in this embodiment, as shown in fig. 1 and 4, four guide posts 7 fixed by bolts are arranged between the positioning plate 3 and the movable mold 1, the ejector plate 5 is sleeved on the outer sides of the guide posts 7, and a reset spring 71 is sleeved on the outer sides of the guide posts 7. One end of the return spring 71 is fixedly connected with the ejector plate 5, and the other end of the return spring is fixedly connected with the movable die 1.
When the ejector plate 5 moves towards the side close to the movable mold 1, the return spring 71 is compressed, and at the moment, the ejector columns on the ejector plate 5 push the injection molding parts to be separated from the cavity 112 of the movable mold 1. After the injection molding piece is separated, the ejector plate 5 is reset under the elastic force of the reset spring 71.
In order to accurately insert the fixed mold 2 into the movable mold 1, in this embodiment, as shown in fig. 3, positioning holes 115 that are recessed inward are disposed at four corners of the movable mold 1, positioning posts 214 that are protruding outward are fixedly disposed on a front side wall of the fixed mold 2, and when the positioning posts 214 are inserted into the positioning holes 115, accurate mold closing of the movable mold 1 and the fixed mold 2 is achieved.
In the present embodiment, as shown in fig. 3, cavities 112 for molding ten injection molded parts are provided on the movable mold 1 and the fixed mold 2, wherein the ten cavities 112 are divided into two rows and symmetrically arranged.
In order to lock the injection molding piece and release the locked state, the locking assembly includes a locking plate 101, a pressing plate 102 and a first spring 103, in this embodiment, as shown in fig. 5 and 10, a locking groove 113 is formed in a side wall of the casting cavity 111, a sliding groove 114 formed in the movable mold 1 is formed in a rear side of the locking groove 113, the sliding groove 114 is communicated with the locking groove 113, the locking plate 101 is installed in the locking groove 113 and can slide left and right, the pressing plate 102 is fixed to the rear side of the locking plate 101 and extends into the sliding groove 114, as shown in fig. 7, one end of the first spring 103 is fixed to an inner wall of the sliding groove 114, the other end of the first spring is fixed to the pressing plate 102, and the first spring 103 is used for resetting of the locking plate 101.
Through the arrangement, when the movable mold 1 and the fixed mold 2 are in a mold closing state, as shown in fig. 7, the locking plate 101 is completely accommodated in the locking groove 113, the first spring 103 is in a free state, and when the movable mold 1 and the fixed mold 2 are in a mold opening state, as shown in fig. 8, the locking plate 101 slides in the locking groove 113, and extends a part of the locking plate into the pouring cavity 111 to block an injection molding piece in the cavity 112, so that the injection molding piece is prevented from being separated from the cavity 112. When the locking plate 101 extends into the casting cavity 111, the pressing plate 102 compresses the first spring 103.
In order to realize the sliding of the locking plate 101 in the locking groove 113, in this embodiment, as shown in fig. 8, a first pushing channel 13 penetrating through the movable die 1 is arranged in front and back, as shown in fig. 5, the first pushing channel 13 is communicated with the locking groove 113, a push rod 8 extending to the inside of the first pushing channel 13 is fixedly arranged on the pushing plate 5, and the push rod 8 is used for realizing the position change of the locking plate 101;
the movable die 1 and the fixed die 2 are in a die assembly state, as shown in fig. 6 and 7, the push plate 5 is in a rear limit position, and the end part of the push rod 8 is abutted against the fixed die 2. As shown in fig. 7, at this time, the end of the locking plate 101 extends into the first pushing channel 13 to abut against the push rod 8;
in order to enable the locking plate 101 to move to one side of the pouring cavity 111 in the forward movement process of the ejector plate 5, then stay for a period of time, and finally reset to a state during mold closing, in this embodiment, as shown in fig. 9, the front end of the push rod 8 is provided with a first ejector surface 81 inclined obliquely backward and forming an included angle of 45 °, the rear side of the first ejector surface 81 is provided with a first ejector surface 82 arranged horizontally, the rear side of the second ejector surface 82 is provided with a third ejector surface 83 inclined obliquely backward and forming an included angle of 135 °, the rear side of the third ejector surface 83 is connected with a fourth ejector surface 84 arranged horizontally, as shown in fig. 10, two guide surfaces 1011 forming an angle of 45 ° are provided at the end of the locking plate 101 in contact with the push rod 8, wherein when the locking plate 101 is in contact with the push rod 8, the guide surfaces 1011 are actually abutted against the ejector surfaces;
when the movable mold 1 and the fixed mold 2 are in a mold closing state, as shown in fig. 7, the guide surface 1011 of the locking plate 101 abuts against the first pushing surface 81, when the push rod 8 moves forward, the push rod 8 applies a component force to the locking plate 101 at this time, so that the locking plate 101 moves towards the side of the cavity 112, the injection molding piece is gradually locked, and when the second pushing surface 82 abuts against the top end of the locking plate 101, as shown in fig. 8, the locking plate 101 keeps a locking state at this time; when the push rod 8 continues to move forwards, the third pushing surface 83 contacts with the guide surface 1011 of the locking plate 101, and the locking plate 101 moves towards the side far away from the cavity 112 under the action of the first spring 103, so that the locking plate 101 is gradually reset; the push rod 8 is further moved forward, the fourth pushing surface 84 abuts against the end of the locking plate 101, and the locking plate 101 is reset to release the locking of the injection molded part, as shown in fig. 9.
In order to realize the separation of the injection molding piece and the excess material in the locked state, in this embodiment, as shown in fig. 6 and 7, the movable mold 1 is provided with a second pushing passage 15 penetrating through the movable mold from front to back, wherein the front end of the second pushing passage 15 is communicated with the diversion passage 213, as shown in fig. 8, a shearing mechanism for cutting the connection position of the injection molding piece and the excess material is arranged inside the second pushing passage 15, the shearing mechanism comprises a shearing knife 9 slidably mounted inside the second pushing passage 15 and a fourth spring 205 for providing the resetting power for the shearing knife 9, the pushing plate 5 is fixedly provided with a shearing rod 91 extending into the second pushing passage 15, as shown in fig. 7, and a first gap is reserved between the shearing rod 91 and the shearing knife 9. The reserved first gap is mainly used for enabling the locking plate 101 to lock the injection molding piece firstly. And then, the shearing rod 91 is abutted against the shearing knife 9 and pushes and shears to cut the excess material, so that the locking and the separation of the injection molding part are in a sequential order.
The movable die 1 and the fixed die 2 are in a die closing state, the end part of the shearing knife 9 extends forwards to the position of the sub-runner 213, the connecting position between an injection molding part and the residual material is ready to be cut at all times, after the injection molding part is locked by the locking plate 101, as shown in fig. 8, the shearing rod 91 is eliminated from a first gap between the shearing knives 9, the shearing rod 91 abuts against the shearing knife 9, and when the push rod 8 moves forwards and abuts against the second pushing surface 82, the shearing rod 91 pushes the shearing knife 9 to move forwards to compress the fourth spring 205 and shear the residual material, so that the injection molding part is separated from the residual material.
In order to eject the injection-molded part and the excess material from the movable mold 1, in this embodiment, the injection-molded part needs to be unlocked first, and then the injection-molded part and the excess material need to be ejected outward. The contact position between the pushing surface 1011 of the locking plate 101 and the push rod 8 is gradually transferred from the second pushing surface 82 to the third pushing surface 83, and at the moment, the locking plate 101 moves to the side far away from the pouring cavity 111 under the action of the first spring 103; resetting the locking plate 101 to release the locking of the injection molding piece;
in order to eject an injection molded part and excess materials from a movable die 1, in this embodiment, as shown in fig. 6 and 7, a first ejection chamber 14 and a second ejection chamber 16 are arranged in the movable die 1, the first ejection chamber 14 is located at the rear side of the pouring cavity 111 and is communicated with the pouring cavity 111, the second ejection chamber 16 is located at the rear side of the main flow passage 212 and is communicated with the main flow passage 212, a first ejection mechanism for ejecting the injection molded part outwards is arranged in the first ejection chamber 14, and a second ejection mechanism for ejecting the excess materials outwards is arranged in the second ejection chamber 16;
the first pushing mechanism comprises a first pushing piece 201 sliding back and forth and a second spring 202 for resetting the first pushing piece 201, which are arranged in the first pushing chamber 14, the second pushing mechanism comprises a second pushing piece 203 sliding back and forth in the second pushing chamber 16 and a third spring 204 for resetting the second pushing piece 203, the first pushing piece 201 is used for pushing the injection molding piece, and the second pushing piece 203 is used for pushing the residual material.
In order to realize the forward and backward movement of the first pushing member 201 and the second pushing member 203, in this embodiment, as shown in fig. 8, a first pushing column 10 extending to the inside of the first pushing chamber 14 and a second pushing column 17 extending to the inside of the second pushing chamber 16 are arranged on the pushing plate 5, wherein a second gap is reserved between the first pushing column 10 and the first pushing member 201 and between the second pushing column 17 and the second pushing member 203, and the length of the second gap is greater than the length of the first gap; the first ejector 201 and the second ejector 203 are ejected later than the shearing blade 9.
In this embodiment, after the locking plate 101 contacts with the fourth pushing surface 84, the locking plate 101 is reset, and during the process that the push rod 8 continues to move forward, the first pushing column 10 abuts against the first pushing piece 201, pushes the first pushing piece 201 to move forward and compress the second spring 202, and pushes the injection molding piece outward; the second pushing column 17 abuts against the second pushing piece 203, so as to push the second pushing piece 203 to move forward and compress the third spring 204, and further, the excess material is pushed out outwards.
Since the injection molding part is molded inside the cavity 112, in order to reduce damage to the injection molding part when the injection molding part is separated from the cavity 112, in this embodiment, the rear wall of the pouring cavity 111 is provided with a receiving groove 1121, and the end of the first pushing part 201 is fixedly provided with a pushing head 2011; wherein, top pusher 2011 offsets with the injection molding, and area of contact between increase and the injection molding reduces the risk of injection molding damage, when top push pedal 5 resets to the initial position, top pusher 2011 accomodates this moment in accomodate groove 1121, and then realize accomodating of top pusher 2011.
In order to install the first ejector 201 in the first ejector chamber 10, the second ejector 17 in the second ejector chamber 16, and the shearing blade 9 in the second ejector passage 15, in this embodiment, as shown in fig. 4 and 7, the movable mold 1 includes two parts, namely a main mold 11 and a sub-mold 12. The main module 11 and the sub-module 12 are fixed by bolts, so that the installation of the shearing blade 9, the first pushing member 201 and the second pushing member 203 is facilitated.
With the arrangement, when the contact position of the locking plate 101 and the push rod 8 is transferred from the first pushing surface 81 to the second pushing surface 82, the locking plate 101 moves towards the cavity 112 side to lock the injection molding piece; when the locking plate 101 slides on the second pushing surface 82, the shearing rod 91 pushes the shearing knife 9 to move forward and shear the connection position of the injection molding part and the excess material; when the contact position of the locking plate 101 and the push rod 8 is shifted from the second pushing surface 82 to the third pushing surface 83, the locking plate 101 is reset at the moment, the locking of the injection molding piece is released, and meanwhile, the second gap is gradually reduced; when the contact position of the locking plate 101 and the push rod 8 is transferred from the third pushing surface 83 to the fourth pushing surface 84, the second gap disappears, and when the locking plate 101 slides backwards along the fourth pushing surface 84, the first pushing part 201 and the second pushing part 203 respectively push the injection molding part and the excess material outwards out of the movable mold 1, so that the injection molding part and the excess material are separated.
In summary, the steps of shearing and separating the injection molding part from the remainder are as follows;
under the condition that the movable die 1 and the fixed die 2 are opened;
firstly, the pushing assembly moves forward, the first pushing surface 81 pushes the locking plate 101 to move towards the side of the cavity 112 and lock the injection molding piece, as shown in fig. 8;
secondly, the end part of the locking plate 101 abuts against the second pushing surface 82 to complete locking of the injection molding piece, the push rod 8 continues to slide forwards, the locking plate 101 and the second pushing surface 82 move relatively, in the process, the first gap is eliminated, the shearing rod 91 pushes the shearing knife 9 to move forwards and shear the connecting position of the injection molding piece and the excess material;
then, the locking plate 101 abuts against the third pushing surface 83 of the push rod 8, the push rod 8 continues to move forwards, the locking plate 101 resets under the action of the first spring 103, and the locking of the injection molding piece is released; when the abutting position of the locking plate 101 and the push rod 8 just enters the position of the fourth pushing surface 84, the second gap is eliminated, the first pushing column 10 abuts against the first pushing piece 201, and the second pushing column 17 abuts against the second pushing piece 203;
the push rod 8 continues to move forwards, the locking plate 101 and the fourth pushing surface 84 slide relatively, and at the moment, the first pushing piece 201 and the second pushing piece 203 simultaneously move forwards to push out the injection molding piece and the excess material outwards, so that the injection molding piece, the excess material and the movable mold 1 are separated.
Finally, the return spring 71 pushes the pushing assembly to move backwards, so that the whole pushing assembly is reset.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a mould of separation injection molding, including movable mould (1) and with cover half (2) that movable mould (1) mutually supported, its characterized in that: the injection molding device is characterized in that a locking mechanism used for locking an injection molding piece and a push rod (8) used for pushing the locking mechanism to move are arranged in the movable die (1), the push rod (8) comprises a first pushing surface (81), a second pushing surface (82), a third pushing surface (83) and a fourth pushing surface (84) which abut against the locking mechanism, a first pushing mechanism used for pushing the injection molding piece, a second pushing mechanism used for pushing excess materials and a shearing mechanism used for shearing the injection molding piece and the excess materials are arranged in the movable die (1), pushing components used for pushing the first pushing mechanism, the second pushing mechanism and the shearing mechanism are arranged in the movable die (1), a first gap is reserved between the pushing components and the shearing mechanism in a die assembly state, second gaps are reserved between the pushing components and the first pushing mechanism and the second pushing mechanism, the first gap is smaller than the second gap, when the locking mechanism slides on the second pushing surface (82), the pushing components abut against the shearing mechanism and shear the connection position of the injection molding piece and the excess materials, the locking mechanism slides on the fourth pushing surface (84), and the movable die assembly slides on the second pushing surface (84), and the movable die assembly, and the pushing mechanism, and the movable die assembly slide respectively.
2. The mold of claim 1, wherein: the injection molding die is characterized in that an inwards-recessed pouring cavity (111) is formed in the movable die (1), a shaping piece (211) inserted into the pouring cavity (111) is fixedly arranged on the fixed die (2), the shaping piece (211) is inserted into the pouring cavity (111) in a die closing state and forms a cavity (112) for molding an injection molding piece, and a runner for pouring materials into the cavity (112) is formed between the movable die (1) and the fixed die (2).
3. A mold for separating injection molded parts according to claim 2, wherein: the runner comprises a main runner (212) and a sub-runner (213), and the sub-runner (213) is communicated with the cavity (112).
4. A mold for molding an article of injection molding according to claim 3, wherein: the movable die is characterized in that a locking groove (113) communicated with the cavity (112) is formed in the movable die (1), a sliding groove (114) is formed in the rear side of the locking groove (113), the locking mechanism comprises a locking plate (101) sliding in the locking groove (113), a pressing plate (102) extending into the sliding groove (114) is fixedly arranged on the locking plate (101), a first spring (103) is fixedly arranged between the side wall of the sliding groove (114) and the pressing plate (102), and the locking plate (101) is completely accommodated in the locking groove (113) in a die closing state.
5. A mold for separating injection molded parts according to claim 4, wherein: the first pushing surface (81) and the third pushing surface (83) are obliquely arranged, and the end part of the locking plate (101) is provided with a guide surface (1011) which is abutted against the first pushing surface (81) or the third pushing surface (83).
6. A mold for separating injection molded parts according to claim 5, wherein: the moving die is characterized in that a first pushing chamber (14) communicated with the die cavity (112) is arranged in the moving die (1), the first pushing mechanism comprises a first pushing piece (201) which slides in the first pushing chamber (14) and extends into the die cavity (112), and a second spring (202) used for resetting the first pushing piece (201) is fixedly arranged between the first pushing piece (201) and the inner wall of the first pushing chamber (14).
7. The mold of claim 6, wherein: the movable die (1) is internally provided with a second pushing chamber (16) communicated with the main flow channel (212), the second pushing mechanism comprises a second pushing piece (203) which slides in the second pushing chamber (16) and extends into the main flow channel (212), and a third spring (204) for resetting the second pushing piece (203) is arranged between the second pushing piece (203) and the inner wall of the second pushing chamber (16).
8. The mold for separating an injection-molded article according to claim 7, wherein: be equipped with in movable mould (1) be located subchannel (213) rear side and with second top pushes away passageway (15) that subchannel (213) communicate, shear the mechanism and include second top pushes away passageway (15) inside gliding shearing sword (9), shear sword (9) with fixedly connected with confession between the inner wall of second top pushes away passageway (15) shear fourth spring (205) that sword (9) reset.
9. The mold of claim 8, wherein: the pushing assembly comprises a pushing plate (5) which slides forwards and backwards, a first pushing column (10), a second pushing column (17) and a shearing rod (91) which extend to the first pushing chamber (14), the second pushing chamber (16) and the second pushing channel (15) respectively are fixedly arranged on the pushing plate (5), a gap between the shearing rod (91) and the shearing knife (9) is a first gap in a die assembly state, and a gap between the first pushing column (10) and the first pushing piece (201) and a gap between the second pushing column (17) and the second pushing piece (203) are second gaps.
10. A mold for separating injection molded parts according to claim 9, wherein: the movable die is characterized in that a first pushing channel (13) penetrating through the movable die (1) is arranged in the movable die, a locking groove (113) is communicated with the first pushing channel (13), a push rod (8) is slidably mounted in the first pushing channel (13), one end of the push rod is fixed with a pushing plate (5), and a locking plate (101) extends into the first pushing channel (13) and abuts against a first pushing surface (81) in a die assembly state.
Priority Applications (1)
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|---|---|---|---|
| CN202211129381.4A CN115447078B (en) | 2022-09-16 | 2022-09-16 | Mould for separating injection molding parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129381.4A CN115447078B (en) | 2022-09-16 | 2022-09-16 | Mould for separating injection molding parts |
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| CN115447078A true CN115447078A (en) | 2022-12-09 |
| CN115447078B CN115447078B (en) | 2023-06-20 |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578524U (en) * | 1992-03-27 | 1993-10-26 | エヌオーケー株式会社 | Molded product ejector |
| JPH06297516A (en) * | 1993-04-20 | 1994-10-25 | Niigata Eng Co Ltd | Device and method for controlling gate cut and ejection in injection molding machine |
| JPH07205213A (en) * | 1994-01-26 | 1995-08-08 | Niigata Eng Co Ltd | Controller and controlling method for gate cutting and ejection of molded article in electrically powered injection molding machine |
| JPH07323447A (en) * | 1994-06-01 | 1995-12-12 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| JPH08258092A (en) * | 1995-03-22 | 1996-10-08 | Mazda Motor Corp | Injection molding apparatus |
| JPH08309802A (en) * | 1995-05-15 | 1996-11-26 | Fanuc Ltd | Three-plate mold structure |
| JPH09141708A (en) * | 1995-11-17 | 1997-06-03 | Tokai Rika Co Ltd | Gate cutting structure of injection mold |
| JP2000061954A (en) * | 1998-08-24 | 2000-02-29 | Tdk Corp | Mold and molding method |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| JP2006062337A (en) * | 2004-08-26 | 2006-03-09 | Aisan Ind Co Ltd | Ejector assembly of mold |
| CN202507479U (en) * | 2012-04-18 | 2012-10-31 | 青岛伟胜电子塑胶有限公司 | Injection mould for separating water gaps step by step |
| CN203046132U (en) * | 2012-12-11 | 2013-07-10 | 东莞宝根精密模塑有限公司 | Mould with automatic water gap removing function |
| CN205238475U (en) * | 2015-12-25 | 2016-05-18 | 东莞市亿辰模具科技有限公司 | Ejecting mechanism of injection mold |
| CN105751436A (en) * | 2014-12-20 | 2016-07-13 | 天津澳德纳科技有限公司 | Injection-molding mould for television plastic housing |
| CN205969751U (en) * | 2016-07-27 | 2017-02-22 | 东莞市民茂电器有限公司 | Pencil sharpener cap injection mold |
| CN106976208A (en) * | 2017-03-28 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of mould structure for avoiding product from staying cover half |
| CN112536986A (en) * | 2020-11-04 | 2021-03-23 | 贝隆精密科技股份有限公司 | Mould structure of cutting water gap in mould |
| CN213166664U (en) * | 2020-07-10 | 2021-05-11 | 广东烨嘉光电科技股份有限公司 | Injection mold of injection molding part with side hole |
| CN114734591A (en) * | 2022-03-04 | 2022-07-12 | 青岛海尔模具有限公司 | Secondary ejection mechanism of injection mold and injection mold |
| CN115042393A (en) * | 2022-06-01 | 2022-09-13 | 宿迁福坤科技有限公司 | Mechanism for automatically separating injection molding sprue from product and injection molding method |
-
2022
- 2022-09-16 CN CN202211129381.4A patent/CN115447078B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578524U (en) * | 1992-03-27 | 1993-10-26 | エヌオーケー株式会社 | Molded product ejector |
| JPH06297516A (en) * | 1993-04-20 | 1994-10-25 | Niigata Eng Co Ltd | Device and method for controlling gate cut and ejection in injection molding machine |
| JPH07205213A (en) * | 1994-01-26 | 1995-08-08 | Niigata Eng Co Ltd | Controller and controlling method for gate cutting and ejection of molded article in electrically powered injection molding machine |
| JPH07323447A (en) * | 1994-06-01 | 1995-12-12 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| JPH08258092A (en) * | 1995-03-22 | 1996-10-08 | Mazda Motor Corp | Injection molding apparatus |
| JPH08309802A (en) * | 1995-05-15 | 1996-11-26 | Fanuc Ltd | Three-plate mold structure |
| JPH09141708A (en) * | 1995-11-17 | 1997-06-03 | Tokai Rika Co Ltd | Gate cutting structure of injection mold |
| JP2000061954A (en) * | 1998-08-24 | 2000-02-29 | Tdk Corp | Mold and molding method |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| JP2006062337A (en) * | 2004-08-26 | 2006-03-09 | Aisan Ind Co Ltd | Ejector assembly of mold |
| CN202507479U (en) * | 2012-04-18 | 2012-10-31 | 青岛伟胜电子塑胶有限公司 | Injection mould for separating water gaps step by step |
| CN203046132U (en) * | 2012-12-11 | 2013-07-10 | 东莞宝根精密模塑有限公司 | Mould with automatic water gap removing function |
| CN105751436A (en) * | 2014-12-20 | 2016-07-13 | 天津澳德纳科技有限公司 | Injection-molding mould for television plastic housing |
| CN205238475U (en) * | 2015-12-25 | 2016-05-18 | 东莞市亿辰模具科技有限公司 | Ejecting mechanism of injection mold |
| CN205969751U (en) * | 2016-07-27 | 2017-02-22 | 东莞市民茂电器有限公司 | Pencil sharpener cap injection mold |
| CN106976208A (en) * | 2017-03-28 | 2017-07-25 | 宁波神通模塑有限公司 | A kind of mould structure for avoiding product from staying cover half |
| CN213166664U (en) * | 2020-07-10 | 2021-05-11 | 广东烨嘉光电科技股份有限公司 | Injection mold of injection molding part with side hole |
| CN112536986A (en) * | 2020-11-04 | 2021-03-23 | 贝隆精密科技股份有限公司 | Mould structure of cutting water gap in mould |
| CN114734591A (en) * | 2022-03-04 | 2022-07-12 | 青岛海尔模具有限公司 | Secondary ejection mechanism of injection mold and injection mold |
| CN115042393A (en) * | 2022-06-01 | 2022-09-13 | 宿迁福坤科技有限公司 | Mechanism for automatically separating injection molding sprue from product and injection molding method |
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| CN115447078B (en) | 2023-06-20 |
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Denomination of invention: A mold for separating injection molded parts Granted publication date: 20230620 Pledgee: Agricultural Bank of China Limited Hangzhou Fuyang Branch Pledgor: Hangzhou Zhongcheng Technology Co.,Ltd. Registration number: Y2024980012926 |