CN115447078B - Mould for separating injection molding parts - Google Patents
Mould for separating injection molding parts Download PDFInfo
- Publication number
- CN115447078B CN115447078B CN202211129381.4A CN202211129381A CN115447078B CN 115447078 B CN115447078 B CN 115447078B CN 202211129381 A CN202211129381 A CN 202211129381A CN 115447078 B CN115447078 B CN 115447078B
- Authority
- CN
- China
- Prior art keywords
- pushing
- injection molding
- locking
- mold
- shearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 97
- 238000010008 shearing Methods 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims 8
- 239000007924 injection Substances 0.000 claims 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 description 9
- 238000003825 pressing Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die for separating injection molding parts, which comprises a movable die and a fixed die matched with the movable die, wherein an injection molding part is arranged between the movable die and the fixed die, 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 die, a shearing mechanism, a first pushing mechanism and a second pushing mechanism are also arranged in the movable die, when the injection molding part is locked by a locking assembly, the shearing mechanism shears the injection molding part and the residual material, and when the push rod moves forwards and releases the locking of the injection molding part, the first pushing mechanism and the second pushing mechanism push the injection molding part and the residual material respectively, so that the shearing and ejection of the whole injection molding part and the residual material are realized, the manual separation procedure of the injection molding part and the residual material 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 industry, mass production of plastic parts is being improved. At present, plastic parts are mainly produced by injection molding.
The injection molding part is molded mainly by a mold in the preparation process. The existing mold is shown in fig. 1, and comprises a movable mold 1 and a fixed mold 2, wherein molten materials are poured into a cavity between the movable mold 1 and the fixed mold 2 for cooling molding, then the movable mold 1 and the fixed mold 2 are driven by a driving mechanism 61 for demolding, and finally a molded injection molding part is ejected outwards from the cavity by a pushing mechanism.
The residual materials poured on the ejected injection molding piece are left, the residual materials of the injection molding piece are generally required to be cut off in a manual mode, the labor intensity is high, the labor cost is increased, and the batch production of the injection molding piece is not facilitated.
Therefore, how to design a mold for automatically separating injection molding and excess materials is a technical problem to be solved by the person skilled in the art.
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 injection molding parts, solve the problem of residual materials remained on the injection molding parts and improve the production efficiency of the injection molding parts.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a mould of separation injection molding, includes the movable mould and with the cover half of movable mould mutually supporting, be equipped with in the movable mould be used for locking the locking mechanism of injection molding and top the push rod that the locking mechanism removed, the push rod includes first top face, second top face, third top face and the fourth top face that offsets with the locking mechanism, be equipped with in the movable mould and be used for pushing away the first pushing mechanism of injection molding, the second pushing mechanism of pushing away the clout and realize injection molding and clout shearing mechanism, be equipped with in the movable mould and carry out the pushing away the subassembly of pushing away to first pushing mechanism, second pushing mechanism and shearing mechanism, under the compound die state, the pushing away the subassembly with leave the second clearance in advance between pushing away the subassembly with first pushing away the mechanism and the second pushing away the second clearance, the locking mechanism is in when sliding on the second top face, the pushing away the subassembly with shearing mechanism and shearing the hookup location of injection molding and clout, fourth pushing away the subassembly and the injection molding when sliding on the second top face and the second pushing away the clout respectively.
Further, a casting cavity which is concave inwards is formed in the movable die, a shaping piece which is inserted into the casting cavity is fixedly arranged on the fixed die, the shaping piece is inserted into the casting cavity in a die closing state, a cavity for injection molding is formed in the casting cavity, and a runner for casting materials to enter the cavity is arranged between the movable die and the fixed die.
Further, the runner comprises a main runner and a split runner, and the split runner is communicated with the cavity.
Further, be equipped with on the movable mould with the locking groove of die cavity intercommunication, the rear side of locking groove is equipped with the spout, locking mechanism includes locking inslot gliding locking plate, the fixed clamp plate that is equipped with on the locking plate extends to the spout is inside, the lateral wall of spout with the fixed first spring that is equipped with between the clamp plate, under the compound die state, the locking plate accomodate completely in the locking groove.
Further, the first pushing surface and the third pushing surface are obliquely arranged, and a guide surface propped against the first pushing surface or the third pushing surface is arranged at the end part of the locking plate.
Further, a first pushing chamber communicated with the cavity is arranged in the movable die, the first pushing mechanism comprises a first pushing piece sliding in the first pushing chamber and extending into the cavity, and a second spring for resetting the first pushing piece is fixedly arranged between the first pushing piece and the inner wall of the first pushing chamber.
Further, 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.
Further, a second pushing channel which is positioned at the rear side of the sub-channel and is communicated with the sub-channel is arranged in the movable mould, the shearing mechanism comprises a shearing knife sliding 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 sliding back and forth, a first pushing column, a second pushing column and a shearing rod which 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.
Further, a first pushing channel penetrating through the movable mould from front to back is arranged in the movable mould, the locking groove is communicated with the first pushing channel, the push rod is slidably arranged in the first pushing channel, one end of the push rod is fixed with the pushing plate, and in a mould closing state, the locking plate extends into the first pushing channel and abuts against the first pushing surface.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, under the state that the movable die and the fixed die are separated, the first pushing surface of the push rod is utilized to push the locking mechanism, the injection molding piece in the movable die is fixed, at the moment, a first gap between the pushing component and the shearing mechanism is eliminated and props 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 props 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, a 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 push the injection molding piece and the residual material out of the movable die respectively, the separation of the injection molding piece and the residual material from the movable die is realized, the procedure of manually separating the injection molding piece and the residual material is reduced, and the production efficiency of the injection molding piece is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional mold;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the moving mold and the fixed mold of 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 schematic view of the structure of FIG. 6A;
FIG. 8 is a schematic view of the cutting process of the injection molding of the present invention;
FIG. 9 is a schematic illustration of an injection molding ejection process according to the present invention;
fig. 10 is a schematic view of the locking mechanism of the present invention.
In the figure: 1. a movable mold; 11. a main module; 111. pouring the cavity; 112. a cavity; 1121. a storage groove; 113. a locking groove; 114. a chute; 115. positioning holes; 12. a secondary module; 13. a first urging passage; 14. a first urging chamber; 15. a second pushing channel; 16. a second pushing chamber; 2. a fixed mold; 211. a shaping piece; 212. a main flow passage; 213. a sub-runner; 214. positioning columns; 215. pouring the port; 3. a positioning plate; 31. a through hole; 4. a support; 5. a push plate; 51. a top column; 61. a driving mechanism; 62. a machine table; 7. a guide post; 71. a return spring; 8. a push rod; 81. a first urging surface; 82. a second pushing surface; 83. a third pushing surface; 84. a fourth urging surface; 9. a shearing knife; 91. a shear bar; 10. a first push post; 17. a second push post; 101. a locking plate; 1011. a guide surface; 102. a pressing plate; 103. a first spring; 201. a first pushing member; 2011. pushing the push head; 202. a second spring; 203. a second pushing member; 204. a third spring; 205. and a fourth spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments 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.
The embodiment provides a mould for separating injection molding, which is mainly used for separating injection molding and residual materials in the mould, improves the production efficiency of the injection molding and reduces the production cost.
As shown in fig. 1 and 2, the mold comprises a movable mold 1 and a fixed mold 2 matched with the movable mold 1, two supporting pieces 4 fixed by bolts are fixedly arranged at the rear side of the movable mold 1, a positioning plate 3 fixed by bolts is arranged on the supporting pieces 4, a driving mechanism 61 is fixedly arranged at the rear side of the positioning plate 3, and in this embodiment, the driving mechanism 61 is a telescopic rod and is used for driving the positioning plate 3 and the movable mold 1 to move backwards so as to separate the fixed mold 2 and the movable mold 1 from each other.
As shown in fig. 3, the movable mold 1 is provided with an inward concave pouring cavity 111, the fixed mold 2 is provided with an outward protruding shaping member 211, and when the shaping member 211 is inserted into the pouring cavity 111, as shown in fig. 6 and 7, a cavity 112 for molding an injection molding member is left between the shaping member 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 clamped, a main runner 212 is formed between the fixed mold 2 and the movable mold 1, a sub-runner 213 is communicated between the main runner 212 and the cavity 112, as shown in fig. 6, a casting opening 215 communicated with the main runner 212 is formed in 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 runner 212 and the sub-runner 213 to enter the cavity 112, and then the injection molding piece is cooled and formed in the cavity 112.
In this embodiment, as shown in fig. 1 and 2, a supporting member 4 is installed between the positioning plate 3 and the movable mold 1, so that a space is reserved between the positioning plate 3 and the movable mold 1;
in order to eject the injection molding part molded in the cavity 112 outwards, a pushing component capable of moving forwards and backwards 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, a pushing component 51 extending backwards through the through hole 31 is fixedly arranged on the pushing component, a machine table 62 positioned at the rear side of the pushing component 51 is arranged on the whole injection molding machine, a gap is reserved between the pushing component 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 realize mold opening, the pushing component is propped against the machine table 62, and when the telescopic rod continues to drive the movable mold 1 to move backwards, the pushing component moves forwards relative to the movable mold 1, and then the injection molding part inside the cavity 112 is pushed outwards.
In this embodiment, as shown in fig. 4 and 5, the pushing assembly includes a pushing plate 5 and a pushing post mounted on the front side of the pushing plate 5. Wherein, the top column 51 is fixedly installed at the rear side of the top pushing plate 5.
In order to realize the reset of the push plate 5 and guide the forward and backward movement of the push plate 5, in this embodiment, as shown in fig. 1 and 4, four guide posts 7 fixed by bolts are disposed between the positioning plate 3 and the movable mold 1, the push plate 5 is sleeved on the outer side of the guide posts 7, and a reset spring 71 is sleeved on the outer side of the guide posts 7. Wherein, one end of the return spring 71 is fixedly connected with the pushing plate 5, and the other end is fixedly connected with the movable die 1.
When the push plate 5 moves to the side close to the movable die 1, the return spring 71 is compressed, and at this time, the push column on the push plate 5 pushes the injection molding member to separate from the cavity 112 of the movable die 1. After the separation of the injection molding, the pushing plate 5 is restored under the elastic force of the restoring spring 71.
In order to accurately insert the fixed mold 2 into the movable mold 1, in this embodiment, as shown in fig. 3, the four corners of the movable mold 1 are provided with positioning holes 115 recessed inwards, and positioning posts 214 protruding outwards are fixedly arranged on the front side wall of the fixed mold 2, so that when the positioning posts 214 are inserted into the positioning holes 115, the accurate mold clamping of the movable mold 1 and the fixed mold 2 is realized.
In this embodiment, as shown in fig. 3, the moving mold 1 and the fixed mold 2 are provided with mold cavities 112 for molding ten injection molding members, wherein the ten mold cavities 112 are divided into two rows and symmetrically arranged.
In order to achieve the locking of the injection molding and the release of the locking state, the locking mechanism comprises 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 one side of the pouring cavity 111, a sliding groove 114 formed in the movable mold 1 is formed in the rear side of the locking groove 113, the sliding groove 114 is communicated with the locking groove 113, the locking plate 101 is mounted in the locking groove 113 and can slide left and right, the pressing plate 102 is fixed on 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 on the inner wall of the sliding groove 114, the other end of the first spring 103 is fixed on the pressed plate 102, and the first spring 103 is used for resetting the locking plate 101.
With the above arrangement, in the mold closing state, as shown in fig. 7, the locking plate 101 is completely received in the locking groove 113, and the first spring 103 is in a free state, and in the 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, so as to resist the injection molding in the cavity 112, and prevent the injection molding from being separated from the cavity 112. When the locking plate 101 extends into the pouring cavity 111, the pressing plate 102 compresses the first spring 103.
In order to realize sliding of the locking plate 101 inside the locking groove 113, in this embodiment, as shown in fig. 8, a first pushing channel 13 penetrating front and back is provided on the movable mold 1, as shown in fig. 5, the first pushing channel 13 is communicated with the locking groove 113, a push rod 8 extending into the first pushing channel 13 is fixedly provided on the push plate 5, and the push rod 8 is used for realizing position change of the locking plate 101;
in the mold clamping state of the movable mold 1 and the fixed mold 2, as shown in fig. 6 and 7, the pushing plate 5 is at a rear limit position, and at this time, the end of the pushing rod 8 abuts against the fixed mold 2. As shown in fig. 7, the end of the locking plate 101 extends to the inside of 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 and stay for a certain time during the forward movement of the pushing plate 5, and finally reset to a state during mold closing, in this embodiment, as shown in fig. 9, a first pushing surface 81 inclined obliquely backward and forming an included angle of 45 ° is provided at the front end of the pushing rod 8, a second pushing surface 82 disposed horizontally is provided at the rear side of the first pushing surface 81, a third pushing surface 83 inclined obliquely backward and forming an angle of 135 ° is provided at the rear side of the second pushing surface 82, a fourth pushing surface 84 disposed horizontally is connected to the rear side of the third pushing surface 83, and as shown in fig. 10, two guiding surfaces 1011 are provided at the end portion of the locking plate 101 contacting the pushing rod 8, wherein when the locking plate 101 contacts the pushing rod 8, the guiding surfaces 1011 are in fact offset with the pushing surfaces;
in the state that the movable mold 1 and the fixed mold 2 are in the 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 to the cavity 112 side, locking of the injection molding piece is gradually realized, 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 maintains the locking state at this time; when the push rod 8 continues to move forwards, the third pushing surface 83 is in contact with the guide surface 1011 of the locking plate 101, and the locking plate 101 moves to the side far away from the cavity 112 under the action of the first spring 103, so that the locking plate 101 is reset gradually; the push rod 8 is further moved forward, and the fourth pushing surface 84 abuts against the end of the locking plate 101, as shown in fig. 9, and the locking plate 101 is reset to release the locking of the injection molding.
In order to achieve separation of the injection molding piece and the excess material in the locked state, in this embodiment, as shown in fig. 6 and 7, a second pushing channel 15 penetrating front and back is provided on the moving mold 1, wherein, as shown in fig. 8, a shearing mechanism for cutting the connection position of the injection molding piece and the excess material is provided inside the second pushing channel 15, the shearing mechanism includes a shearing blade 9 slidably mounted inside the second pushing channel 15 and a fourth spring 205 for providing a restoring force for the shearing blade 9, a shearing rod 91 extending into the second pushing channel 15 is fixedly provided on the pushing plate 5, as shown in fig. 7, a first gap is reserved between the shearing rod 91 and the shearing blade 9. The first gap is reserved mainly for the locking plate 101 to lock the injection molding piece. Then, the shearing rod 91 is abutted against the shearing knife 9 and pushes the shearing rod to cut the excess material, so that the locking and the separation of the injection molding piece are in sequence.
When the movable mold 1 and the fixed mold 2 are in a mold closing state, the end part of the shearing blade 9 extends forward to the position of the split runner 213, the connecting position between the injection molding piece and the residual material is ready to be cut at any time, after the locking plate 101 completes locking of the injection molding piece, as shown in fig. 8, a first gap between the shearing rod 91 and the shearing blade 9 is eliminated, the shearing rod 91 abuts against the shearing blade 9, and when the push rod 8 moves forward and abuts against the second pushing surface 82, the shearing rod 91 pushes the shearing blade 9 to move forward to compress the fourth spring 205 and shear the residual material, so that the injection molding piece and the residual material are separated.
In order to eject the injection molding and the excess material from the mold 1, in this embodiment, it is necessary to release the lock on the injection molding first and then eject the injection molding and the excess material outward. The contact position of the guide surface 1011 of the locking plate 101 and the push rod 8 is gradually transferred to the third pushing surface 83 from the second pushing surface 82, and at this time, 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;
in order to eject the injection molding and the excess material out of the driven mold 1, in this embodiment, as shown in fig. 6 and 7, a first ejection chamber 14 and a second ejection chamber 16 are provided in the driven mold 1, the first ejection chamber 14 is located at the rear side of the pouring cavity 111 and is in communication with the pouring cavity 111, the second ejection chamber 16 is located at the rear side of the main runner 212 and is in communication with the main runner 212, a first ejection mechanism for ejecting the injection molding out is provided in the first ejection chamber 14, and a second ejection mechanism for ejecting the excess material out is provided 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, 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 injection molding pieces, and the second pushing piece 203 is used for pushing residual materials.
In order to achieve 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, the pushing plate 5 is provided with a first pushing post 10 extending into the first pushing chamber 14 and a second pushing post 17 extending into the second pushing chamber 16, wherein a second gap is reserved between the first pushing post 10 and the first pushing member 201 and between the second pushing post 17 and the second pushing member 203, and the length of the second gap is greater than that of the first gap; the ejection of the first pushing piece 201 and the second pushing piece 203 is made to be later than the ejection of the shearing blade 9.
In this embodiment, after the locking plate 101 contacts with the fourth pushing surface 84, at this time, the locking plate 101 is reset, and in the process that the push rod 8 continues to move forward, the first pushing post 10 abuts against the first pushing member 201, so as to push the first pushing member 201 to move forward and compress the second spring 202, so that the injection molding member is ejected outwards; the second pushing post 17 abuts against the second pushing member 203, so as to push the second pushing member 203 to move forward and compress the third spring 204, and further push the remainder outwards.
Because the injection molding piece is molded in the cavity 112, in order to reduce damage to the injection molding piece when the injection molding piece is separated from the cavity 112, in this embodiment, a receiving groove 1121 is formed in the rear wall of the pouring cavity 111, and a pushing head 2011 is fixedly arranged at the end of the first pushing piece 201; the pushing head 2011 is abutted against the injection molding piece, so that the contact area between the pushing head 2011 and the injection molding piece is increased, the damage risk of the injection molding piece is reduced, and when the pushing plate 5 is reset to the initial position, the pushing head 2011 is stored in the storage groove 1121, so that the storage of the pushing head 2011 is realized.
In order to install the first pushing member 201 in the first pushing chamber 14, the second pushing member 203 is installed in the second pushing chamber 16, and the shearing blade 9 is installed in the second pushing channel 15, in this embodiment, as shown in fig. 4 and 7, the movable mold 1 includes two parts, namely, a main module 11 and a sub-module 12. The main module 11 and the auxiliary module 12 are fixed by bolts, so that the shearing blade 9, the first pushing member 201 and the second pushing member 203 are convenient to install.
With the above arrangement, when the contact position of the lock plate 101 and the push rod 8 is transferred from the first pushing surface 81 to the second pushing surface 82, the lock plate 101 moves toward the cavity 112 side to lock the injection molding; when the locking plate 101 slides on the second pushing surface 82, the shearing rod 91 pushes the shearing blade 9 to move forward and shears the connection position of the injection molding piece and the residual material; when the contact position of the locking plate 101 and the push rod 8 is transferred from the second pushing surface 82 to the third pushing surface 83, the locking plate 101 is reset at this time, the locking of the injection molding piece is released, and the second gap is gradually reduced; when the contact position between 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 backward along the fourth pushing surface 84, the first pushing piece 201 and the second pushing piece 203 respectively push the injection molding piece and the residual material out of the movable mold 1 to the outside, so as to separate the injection molding piece and the residual material.
In summary, the steps of shearing and separating the injection molding piece from the remainder are as follows;
under the condition that the movable die 1 and the fixed die 2 are opened;
first, the pushing assembly moves forward, and the first pushing surface 81 pushes the locking plate 101 to move to the cavity 112 side and locks 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, so that locking of the injection molding piece is finished, 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, and the shearing rod 91 pushes the shearing blade 9 to move forwards and shear the connection position of the injection molding piece and the residual materials;
then, the locking plate 101 is propped against the third pushing surface 83 of the push rod 8, the push rod 8 continuously moves forwards, the locking plate 101 is reset 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 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 is continuously moved 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 eject the injection molding piece and the residual material outwards, so that the separation of the injection molding piece, the residual material and the movable mould 1 is realized.
Finally, the reset spring 71 pushes the pushing component to move backwards, so that the whole pushing component 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 characteristics 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 (9)
1. The utility model provides a mould of separation injection molding, includes movable mould (1) and with cover half (2) of movable mould (1) mutually supporting, its characterized in that: the injection molding device is characterized in that a locking mechanism for locking an injection molding part and a pushing rod (8) for pushing the locking mechanism to move are arranged in a movable mould (1), the pushing 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 are propped against the locking mechanism, the first pushing surface (81) is positioned at the front end of the pushing rod (8) and obliquely arranged in a rear inclined mode, the second pushing surface (82) is horizontally arranged at the rear side of the first pushing surface (81), the third pushing surface (83) is arranged at the rear side of the second pushing surface (82) and obliquely inclined to the rear side, the fourth pushing surface (84) is connected with the third pushing surface (83) and horizontally arranged, a locking groove (113) communicated with a cavity (112) is formed in the movable mould (1), the rear side of the locking groove (113) is provided with a sliding groove (114), the locking mechanism comprises a locking plate (101) which slides in the locking groove (113), the locking plate (101) is fixedly arranged at the rear side of the first pushing surface (81) and is horizontally arranged, the third pushing surface (83) is arranged at the rear side of the second pushing surface (82) and obliquely inclined to the rear side of the locking surface, the fourth pushing surface (84) is connected with the third pushing surface (83), the fourth pushing surface (83) horizontally arranged at the horizontal pushing surface, the locking groove (113) and horizontally arranged at the side of the locking mechanism, and the locking plate (112) is completely connected with the locking groove (112), and the locking groove (114) and is completely arranged in the locking groove (102) The injection molding machine comprises a movable mold (1) and a second pushing mechanism for pushing the excess materials and a shearing mechanism for shearing the injection molding pieces and the excess materials, wherein a pushing assembly for pushing the first pushing mechanism, the second pushing mechanism and the shearing mechanism is arranged in the movable mold (1), a first gap is reserved between the pushing assembly and the shearing mechanism in a mold closing state, a second gap is reserved between the pushing assembly and the first pushing mechanism and between the pushing assembly and the second pushing mechanism, the first gap is smaller than the second gap, when the pushing assembly slides on a second pushing surface (82), the pushing assembly is propped against the shearing mechanism and shears the connection position of the injection molding pieces and the excess materials, and when the locking mechanism slides on a fourth pushing surface (84), the pushing assembly is propped against the first pushing mechanism and the second pushing mechanism and pushes the injection molding pieces and the excess materials to be separated from the movable mold (1).
2. A mold for separating injection molded parts according to claim 1, wherein: the movable die (1) is provided with an inward concave pouring cavity (111), the fixed die (2) is fixedly provided with a shaping piece (211) inserted into the pouring cavity (111), the shaping piece (211) is inserted into the pouring cavity (111) in a die closing state to form a cavity (112) for injection molding, and a runner for pouring materials into the cavity (112) is arranged 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 split runner (213), and the split runner (213) is communicated with the cavity (112).
4. A mold for separating injection molded parts according to claim 3, wherein: the first pushing surface (81) and the third pushing surface (83) are obliquely arranged, and a guide surface (1011) propped against the first pushing surface (81) or the third pushing surface (83) is arranged at the end part of the locking plate (101).
5. A mold for separating injection molded parts according to claim 4, wherein: the movable die (1) is internally provided with a first pushing chamber (14) communicated with the cavity (112), the first pushing mechanism comprises a first pushing piece (201) sliding in the first pushing chamber (14) and extending into the cavity (112), and a second spring (202) 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).
6. A mold for separating injection molded parts according to claim 5, wherein: the movable die (1) is internally provided with a second pushing chamber (16) communicated with the main runner (212), the second pushing mechanism comprises a second pushing piece (203) which slides in the second pushing chamber (16) and extends into the main runner (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).
7. A mold for separating injection molded parts according to claim 6, wherein: the movable mould (1) is internally provided with a second pushing channel (15) which is positioned at the rear side of the sub-channel (213) and is communicated with the sub-channel (213), the shearing mechanism comprises a shearing knife (9) sliding in the second pushing channel (15), and a fourth spring (205) for resetting the shearing knife (9) is fixedly connected between the shearing knife (9) and the inner wall of the second pushing channel (15).
8. A mold for separating injection molded parts according to claim 7, wherein: the pushing assembly comprises a pushing plate (5) sliding 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) 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 closing 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.
9. A mold for separating injection molded parts according to claim 8, wherein: the movable die (1) is internally provided with a first pushing channel (13) penetrating front and back, 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) and one end of the push rod is fixed with the pushing plate (5), and in a die clamping state, the locking plate (101) extends into the first pushing channel (13) and props against the first pushing surface (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129381.4A CN115447078B (en) | 2022-09-16 | 2022-09-16 | Mould for separating injection molding parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129381.4A CN115447078B (en) | 2022-09-16 | 2022-09-16 | Mould for separating injection molding parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115447078A CN115447078A (en) | 2022-12-09 |
| CN115447078B true CN115447078B (en) | 2023-06-20 |
Family
ID=84305474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211129381.4A Active CN115447078B (en) | 2022-09-16 | 2022-09-16 | Mould for separating injection molding parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115447078B (en) |
Citations (3)
| 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 |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| 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 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2622229B2 (en) * | 1993-04-20 | 1997-06-18 | 株式会社新潟鉄工所 | Gate cut and protrusion control apparatus and method in injection molding machine |
| JP2719108B2 (en) * | 1994-01-26 | 1998-02-25 | 株式会社新潟鉄工所 | Gate cut and protrusion control device and control method in electric injection molding machine |
| JP3163311B2 (en) * | 1994-06-01 | 2001-05-08 | 東洋機械金属株式会社 | 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 |
| JP3406752B2 (en) * | 1995-11-17 | 2003-05-12 | 株式会社東海理化電機製作所 | Gate cut structure in injection mold |
| JP3849903B2 (en) * | 1998-08-24 | 2006-11-22 | Ｔｄｋ株式会社 | Mold and molding method |
| 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 |
| CN106976208B (en) * | 2017-03-28 | 2022-09-20 | 神通科技集团股份有限公司 | Die structure capable of avoiding product remaining die |
| 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 |
| CN112536986B (en) * | 2020-11-04 | 2022-12-30 | 贝隆精密科技股份有限公司 | Mould structure of cutting water gap in mould |
| 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 (3)
| 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 |
| JP2002347085A (en) * | 2001-05-25 | 2002-12-04 | Citizen Electronics Co Ltd | Injection-molding mold |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115447078A (en) | 2022-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019211924A1 (en) | Undercut processing mechanism, mold for molding, and molded article | |
| US20220219365A1 (en) | Slide mechanism, fixing mold, movable mold and molding mold | |
| WO2020136695A1 (en) | Sliding mechanism, movable mold, and molding mold | |
| CN115447078B (en) | Mould for separating injection molding parts | |
| CN211616471U (en) | Core pulling mechanism and injection mold | |
| CN110385833B (en) | Injection mold | |
| CN113650227B (en) | Double-color mold with movable elastic needle | |
| CN214820415U (en) | Injection mold of product with side direction concave part | |
| KR20050017224A (en) | Product push out structure of plastic injection molding apparatus | |
| CN112895352A (en) | Secondary ejection structure for core pulling of straight ejection inner rotating shaft | |
| CN219947095U (en) | Die with abdication function during die sinking | |
| CN219191094U (en) | Mechanical locking device for injection mold | |
| CN217514444U (en) | Mould with slider is loosed core | |
| CN220923141U (en) | Mould for preventing product from deviating wall thickness and high-pressure injection molding | |
| CN221271919U (en) | Push plate demoulding mechanism of injection mould | |
| CN220390198U (en) | Structure for automatically cutting off side gate of rear mold slide block | |
| CN110667051B (en) | Core pulling and tripping device and mold with same | |
| CN115157577B (en) | Injection mold without ejection | |
| CN215703310U (en) | Mould structure convenient to back-off demolding | |
| CN212653791U (en) | High-precision energy-saving injection mold | |
| CN114347401B (en) | Tripping structure and injection mold | |
| CN213082170U (en) | Ejection device | |
| CN216683154U (en) | One-outlet multi-combination accessory forming die | |
| CN220314038U (en) | Injection mould frame | |
| CN217777669U (en) | Lateral ejection structure of injection mold for vehicle door interior trim panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
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 |