CN114986794A - Forming die of injection molding with inserts - Google Patents
Forming die of injection molding with inserts Download PDFInfo
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- CN114986794A CN114986794A CN202210621722.3A CN202210621722A CN114986794A CN 114986794 A CN114986794 A CN 114986794A CN 202210621722 A CN202210621722 A CN 202210621722A CN 114986794 A CN114986794 A CN 114986794A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims description 47
- 238000007664 blowing Methods 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 23
- 239000004033 plastic Substances 0.000 abstract description 23
- 238000003825 pressing Methods 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000011160 research Methods 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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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
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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 forming die of an injection molding piece with an insert, which comprises an upper die component and a lower die component, wherein the upper die component and the lower die component are arranged in a matching way, an upper die groove and a pouring system are arranged on the upper die component, the lower die component comprises a lower die seat and a lower die block, a plurality of first function holes and a plurality of second function holes are arranged on the lower die block, the first function holes are arranged at the edge position of the lower die groove, the second function holes are arranged at the central line position of the lower die groove, and the insert is arranged in the first function holes; according to the invention, by adjusting the pressing stroke of the lower module after die assembly, the functional head in the second functional hole can be ensured to be flush with the inner wall of the lower die groove, and the functional head in the first functional hole adjusts the extending state of the insert in the lower die groove, so that inserts with different depths are mounted on large plastic shell products, and thus, injection molding operation is carried out after the lower module is pressed to a reasonable position after die assembly, and the preparation of the large plastic shell products is ensured.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a molding die of an injection molding piece with an insert.
Background
An injection mold is a tool for producing plastic products, and a material melted by heat is injected into a mold cavity from high pressure, and a formed product is obtained after cooling and solidification. With the increasing complexity of the structure of plastic products, inserts are frequently needed in the injection molding process, and for large plastic shell products, inserts of a plurality of fasteners are generally needed to be arranged on the outer edge of the plastic shell products so as to facilitate the installation and fixation of the large plastic shell products.
Among the prior art, for guaranteeing the position stability of inserts at the in-process of moulding plastics, generally need to set up limit structure such as inserts pole and carry out spacing fixed to the inserts, on the general snap-on of inserts pole is in the lower mould, because the inserts pole can't carry out the ascending position control of axial, when the inserts of the installation different degree of depth on large-scale plastics shell class goods, need to change not unidimensional inserts pole and carry out the position debugging of inserts, the operation is inconvenient.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical defects, the technical scheme adopted by the invention is that the forming die for the injection molding part with the insert comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are arranged in a matched manner, an upper die groove and a pouring system are arranged on the upper die assembly, the lower die assembly comprises a lower die base and a lower die block, the lower die block is arranged in the lower die base, a lower die groove is arranged on the lower die block, the lower die groove and the upper die groove form a die cavity for preparing the injection molding part after the upper die assembly and the lower die assembly are assembled, and the pouring system is communicated with the die cavity;
the lower module is provided with a plurality of first functional holes and a plurality of second functional holes, the first functional holes are arranged at the edge position of the lower die cavity, the second functional holes are arranged at the central line position of the lower die cavity, and the inserts are arranged in the first functional holes;
the first functional hole and the second functional hole are both provided with adjusting rods, the lower ends of the adjusting rods are in threaded connection with the lower die holder, the upper ends of the adjusting rods are provided with functional heads, and the functional heads are used for fixing the inserts or ensuring the smoothness of the inner wall of the lower die cavity;
the lower die block is provided with a guide hole, a guide column is fixedly arranged on the lower die base and arranged in the guide hole, a first elastic piece is sleeved outside the guide column, and two ends of the first elastic piece are respectively in contact with the lower die base and the lower die block.
Preferably, the first functional hole and the second functional hole both comprise an adjusting section and a guiding section, the adjusting section is arranged on one side close to the lower die cavity, the adjusting section is arranged on one side far away from the lower die cavity, the adjusting section and the guiding section are coaxially arranged, and the diameter of the adjusting section is larger than that of the guiding section.
The preferred, adjust the pole and set up to cylinder type pole, the function head sets up to the cylinder type, it is less than to adjust the pole the direction section diameter, the function head diameter is less than adjust the section diameter and be greater than the direction section diameter, the function head outward flange with it forms the air discharge duct clearance to adjust between the section.
Preferably, the lower die holder corresponds each the regulation pole and is provided with the regulation hole, the tip setting that the regulation hole was kept away from module down is placed the section, the regulation hole is close to the tip setting linkage segment of module down, be provided with the screw thread on the linkage segment, adjust the pole with linkage segment threaded connection, the regulation rod tip is provided with the regulation head, the setting of regulation head is in place the section, place still be provided with the second elastic component in the section, the second elastic component cover is established on adjusting the pole, the second elastic component both ends respectively with adjust the head, place the section inner wall contact setting.
Preferably, the lower module is provided with a blowing channel, the lower module comprises a forming part and an adjusting part, the adjusting part is arranged at the lower part of the center of the forming part, the guide hole is formed in the adjusting part, the lower die cavity is formed in the forming part, the blowing channel comprises an inlet section, an outlet section and a connecting section, the inlet section is arranged in the adjusting part, the outlet section is arranged in the forming part, two ends of the connecting section are connected with the inlet section and the outlet section, one end of the inlet section is provided with an air supply port, the air supply port is communicated with the external air supply assembly, and the end part of the outlet section is communicated with the first functional hole and the second functional hole.
Preferably, the air blowing channel is provided with a first air blowing channel and a second air blowing channel, the first air blowing channel corresponds to the first functional hole, the second air blowing channel corresponds to the second functional hole, the first air blowing channel is provided with a first air supply port on the adjusting portion, the second air blowing channel is provided with a second air supply port on the adjusting portion, the adjusting portion is provided with a switching assembly, and the switching assembly is used for realizing communication between the external air supply assembly and the first air supply port and communication between the external air supply assembly and the second air supply port respectively.
The preferred, first air feed mouth with second air feed mouth all sets up on same horizontal plane, the switching component includes two regulating plates, two the regulating plate symmetry sets up the both sides of regulating part, two all be provided with the manhole on the regulating plate, manhole one end set up the air feed joint with outside air feed subassembly is connected, and the other end corresponds first air feed mouth with the second air feed mouth sets up, regulating part one end is provided with first adjust the cylinder through the fixed plate, first adjust the cylinder's telescopic link with regulating plate one-to-one fixed connection, through the flexible drive of first adjust the cylinder regulating plate horizontal migration realizes the manhole is in first air feed mouth with the round trip switch of second air feed mouth position.
Preferably, a sealing ring is arranged at one side of the inlet hole close to the adjusting part; the two adjusting plates are respectively provided with a second adjusting cylinder, and telescopic rods of the two second adjusting cylinders are arranged in parallel; be provided with clearing hole and fixed orifices on the regulating plate, the regulating part is provided with dodges the hole, the clearing hole is circular through-hole, it sets up to waist slot hole to dodge the hole, the fixed orifices is the screw hole, second adjusting cylinder's telescopic link passes in proper order the clearing hole dodge the hole and with fixed orifices thread fixed connection, through second adjusting cylinder's flexible operation adjusts two regulating plate and centre distance between the regulating part.
Preferably, the fixed plate is provided with a guide rail, the first adjusting cylinders are movably connected to the slide rail through sliding blocks, the adjusting portions are arranged between the two first adjusting cylinders, the central position of the adjusting portions is fixedly provided with a positioning plate, the positioning plate is fixedly provided with a guide rod, the sliding blocks are fixedly provided with guide cylinders, and the guide rod and the end portions of the guide cylinders are sleeved with the guide rods, so that the guide rods and the guide cylinders can axially move relatively.
Preferably, the guide rod is sleeved with a third elastic piece, one end of the third elastic piece is in contact connection with the end part of the guide cylinder, the other end of the third elastic piece is in contact connection with the positioning plate, and the third elastic piece provides elastic repulsion.
Compared with the prior art, the invention has the beneficial effects that: 1, the functional head in the second functional hole can be ensured to be flush with the inner wall of the lower die cavity by adjusting the pressing stroke of the lower die block after die assembly, the functional head in the first functional hole adjusts the extending state of the insert in the lower die cavity, so that inserts with different depths are installed on large plastic shell products, injection molding operation is carried out after the lower die block is pressed to a reasonable position after die assembly, and the preparation of the large plastic shell products is ensured; 2, the adjusting rod can be adjusted relative to the lower die base through the adjusting rod by rotating the adjusting head, so that the initial position of each functional head can be adjusted, the adjusting depth of the insert arranged at different positions on a large plastic shell product can be adjusted by adjusting the initial positions of different functional heads, and the accurate position of each functional head can be realized only by determining the accurate position of one functional head in the injection molding process and adjusting the axial relative position of other functional heads based on the functional heads due to the fact that the fixed stroke of the lower module pressing has the same influence on the position of each functional head.
Drawings
FIG. 1 is a front view of the mold for molding the injection-molded part with the insert;
FIG. 2 is a cross-sectional side view of the mold for molding the injection molded part with the insert;
FIG. 3 is a structural view of the lower cavity;
FIG. 4 is a structural view of the first blowing passage;
fig. 5 is a structural view of the second blowing passage;
FIG. 6 is a structural view of the adjustment lever;
fig. 7 is a structural bottom view of the lower module.
The figures in the drawings represent:
1-an upper die assembly; 2-a lower die assembly; 3-a first functional pore; 4-a second functional pore; 5-adjusting the rod; 6-a switching component; 7-an insert; 11-a casting system; 21-a lower die holder; 22-lower module; 23-lower die cavity; 24-a pilot hole; 25-a guide post; 26-a first elastic member; 27-a conditioning aperture; 31-a conditioning section; 32-a guide section; 41-inlet section; 42-an outlet section; 43-a connecting segment; 51-a functional head; 52-an adjustment head; 53-a second elastic member; 61-an adjusting plate; 62-a first conditioning cylinder; 63-a second adjustment cylinder; 64-a guide rail; 65-a positioning plate; 66-a guide bar; 67-a guide cylinder; 68-a third elastic member.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, fig. 1 is a structural front view of a forming mold of the injection molding part with the insert; fig. 2 is a side sectional view of the mold for molding the injection-molded part with the insert.
The forming die for the injection molding part with the insert comprises an upper die component 1 and a lower die component 2, wherein the upper die component 1 and the lower die component 2 are arranged in a matched mode, an upper die groove and a pouring system 11 are arranged on the upper die component 1, the lower die component 2 comprises a lower die base 21 and a lower die block 22, the lower die block 22 is arranged in the lower die base 21, a lower die groove 23 is arranged on the lower die block 22, a die cavity for preparing the injection molding part is formed by the lower die groove 23 and the upper die groove after the upper die component 1 and the lower die component 2 are matched, and the pouring system 11 is communicated with the die cavity, so that injection molding in the die cavity is realized.
As shown in fig. 3, fig. 3 is a structural view of the lower cavity; the lower die block 22 is provided with a plurality of first function holes 3 and a plurality of second function holes 4, the first function holes 3 are arranged at the edge positions of the lower die cavity 23, the second function holes 4 are arranged at the central line positions of the lower die cavity 23, generally, the first function holes 3 are arranged corresponding to the positions of the inserts 7 on the injection molding piece, and the inserts 7 are arranged in the first function holes 3, so that the position fixing of the inserts 7 in the lower die cavity 23 is realized.
Preferably, the first function hole 3 and the second function hole 4 are both provided with an adjusting rod 5, the lower end of the adjusting rod 5 is in threaded connection with the lower die holder 21, the upper end of the adjusting rod 5 is provided with a function head 51, and the function head 51 is used for fixing the insert 7 or ensuring that the inner wall of the lower die cavity 23 is flat.
Generally, a placing groove is formed in the lower die holder 21, the lower die block 22 is arranged in the placing groove, and the edge of the lower die block 22 contacts and is attached to the wall of the placing groove, so that the lower die block 22 vertically moves in the placing groove under the guiding action of the placing groove.
The lower module 22 is provided with a guide hole 24, a guide post 25 is fixedly arranged on the lower die base 21, the guide post 25 is arranged in the guide hole 24, a first elastic piece 26 is sleeved outside the guide post 25, two ends of the first elastic piece 26 are respectively in contact with the lower die base 21 and the lower module 22, in the process of closing the upper die assembly 1 and the lower die assembly 2 and continuously pressing down, the first elastic piece 26 provides elastic force for the lower module 22 to ensure that the closing positions of the lower module 22 and the upper die assembly are stable, and the adjusting rod 5 is fixedly arranged on the lower die base 21, so that the position states of the function head 51 in the first function hole 3 and the second function hole 4 can be adjusted by adjusting the downward pressing fixed stroke of the lower module 22.
According to the invention, by adjusting the pressing stroke of the lower module 22 after the die assembly, the functional head 51 in the second functional hole 4 can be ensured to be flush with the inner wall of the lower die cavity 23, and the functional head 51 in the first functional hole 3 adjusts the extending state of the insert 7 in the lower die cavity 23, so that the inserts 7 with different depths are mounted on large plastic shell products, and then the injection molding operation is carried out after the lower module 22 is matched and pressed to a reasonable position, thereby ensuring the preparation of the large plastic shell products.
Example two
As shown in fig. 6, fig. 6 is a structural view of the adjusting lever; specifically, first function hole 3 with second function hole 4 all includes regulation section 31 and direction section 32, it is being close to adjust section 31 set up one side of lower die cavity 23, it is keeping away from to adjust section 31 one side of lower die cavity 23, just adjust section 31 with the coaxial setting of direction section 32, it is greater than to adjust section 31 diameter the direction section 32 diameter.
Correspondingly, adjust pole 5 and set up to cylinder type pole, function head 51 sets up to the cylinder type, it is slightly less than to adjust pole 5 the direction section 32 diameter, thereby guarantees adjust pole 5 is in along the axial free slip in the direction section 32, function head 51 diameter slightly is less than adjust section 31 diameter and be greater than direction section 32 diameter, function head 51 outward flange with adjust and form the clearance between the section 31, thereby form the air discharge duct, realize the exhaust operation of die cavity at the in-process of moulding plastics. Since the first functional holes 3 are all arranged at the edge position of the lower die cavity 23, when the molten material flows to the position of the first functional holes 3, most of the exhaust work of the first functional holes 3 is completed, and simultaneously, fewer flash burrs are formed on the first functional holes 3.
For the exhaust, an exhaust groove structure with a parting surface arranged on the periphery of the cavity or other exhaust structures in the prior art can be additionally arranged, so that the outer edge of the functional head 51 is in contact fit with the adjusting section 31.
The lower die holder 21 corresponds each adjust pole 5 and is provided with regulation hole 27, regulation hole 27 is kept away from the tip setting of lower module 22 places the section, regulation hole 27 is close to the tip of lower module 22 sets up the linkage segment, be provided with the screw thread on the linkage segment, adjust pole 5 with linkage segment threaded connection, it is provided with regulation head 52 to adjust 5 tip of pole, adjust head 52 sets up in placing the section, still be provided with second elastic component 53 in placing the section, second elastic component 53 cover is established adjust pole 5 is last, second elastic component 53 both ends respectively with adjust head 52 place the section inner wall contact setting, thereby to adjust head 52 provide axial elastic repulsion, improve adjust the stability of pole 5.
According to the invention, through the structural arrangement of the adjusting rod 5, the adjusting rod 5 can be adjusted relative to the lower die holder 21 by rotating the adjusting head 52, so that the initial position of each functional head 51 can be adjusted, the adjustment of the setting depth of the insert 7 at different positions on a large plastic shell product can be realized by adjusting the initial positions of different functional heads 51, and because the fixed stroke of the downward pressing of the lower die block 22 has the same influence on the position of each functional head 51, the accurate position of each functional head 51 can be realized only by determining the accurate position of one functional head 51 in the injection molding process and adjusting the axial relative position of the other functional heads 51 based on the functional heads 51.
Generally, to the not isostructure inserts 7, except in the second function hole 4 function head 51 directly uses the assurance lower die cavity 23's inner wall flushes outward, in the first function hole 3 still be provided with the fixed part on the function head 51, if insert 7 sets up to the cover barrel spare that has the internal thread hole, then the fixed part sets up to the diameter cooperation the cylinder pole that the internal thread hole set up, if insert 7 sets up to the cylinder pole that has the external screw thread, then the fixed part sets up to the circular recess, first function hole 3 diameter with the cooperation of the major diameter of insert 7 external screw thread sets up, the diameter of circular recess and the cooperation of the path of insert 7 external screw thread set up to realize insert 7 is in fixed on the function head 51.
EXAMPLE III
As shown in fig. 4 and 5, fig. 4 is a structural view of the first blowing passage; fig. 5 is a structural view of a second blowing passage.
The lower module 22 is provided with a blowing channel, one end of the blowing channel is connected with an external air supply assembly, the other end of the blowing channel is communicated with the first functional hole 3 and the second functional hole 4, after the injection molding operation is completed, the upper module 1 and the lower module 2 integrally move up until the upper module 1 and the lower module 2 are opened, the external air supply assembly blows air to the first functional holes 3 and the second functional holes 4 through the blowing channel, and therefore the large plastic shell product is released from the lower module 22.
Specifically, the lower module 22 includes a forming portion and an adjusting portion, the adjusting portion is disposed at a central lower portion of the forming portion, so as to form a T-shaped structure, the guide hole 24 is disposed on the adjusting portion, the lower mold cavity 23 is disposed on the forming portion, the blowing passage includes an inlet section 41, an outlet section 42 and a connecting section 43, the inlet section 41 is disposed in the adjusting portion, the outlet section 42 is disposed in the forming portion, both ends of the connecting section 43 are connected to the inlet section 41 and the outlet section 42, one end of the inlet section 41 is disposed as an air supply port, the air supply port is communicated with the external air supply assembly, an end of the outlet section 42 is communicated with the first functional hole 3 and the second functional hole 4.
Generally, the inlet section 41 and the outlet section 42 are horizontally disposed through holes, the connecting section 43 is vertically disposed through holes, and in order to ensure that each outlet section 42 is communicated with each first functional hole 3, the outlet sections 42 may be disposed at different heights, so as to avoid interference when each outlet section 42 is communicated with the connecting section 43.
The end of the outlet section 42 is generally disposed at the middle position of the adjusting section 31, and during the mold opening process of the upper mold assembly 1 and the lower mold assembly 2, the lower mold block 22 moves upward, so that the function head 51 descends to the inside of the first function hole 3 and the second function hole 4, so that the end of the outlet section 42 is located above the function head 51, and the end of the outlet section 42 can directly communicate with the lower mold cavity 23 through the first function hole 3 and the second function hole 4, thereby facilitating the operation of blowing and demolding.
Meanwhile, in the injection molding process, the exhaust groove structures of the first functional hole 3 and the second functional hole 4 can realize the exhaust operation with the outside through the blowing channel. Simultaneously first function hole 3 with second function hole 4 possesses the difunctional of air discharge duct with the drawing of patterns of blowing simultaneously, can be convenient for right first function hole 3 with second function hole 4 later maintenance clearance gets into because of the air discharge duct structure the solidification grog in first function hole 3 with second function hole 4 is cleared up of blowing, guarantees that first function hole 3 with the inside of second function hole 4 is clean and tidy.
Example four
In this embodiment, the first functional hole 3 is correspondingly provided with a first blowing channel, the second functional hole 4 is correspondingly provided with a second blowing channel, when the blowing and demolding operation is performed, the second blowing channel blows the second functional hole 4, namely, the edge position of the large plastic shell product is blown, and meanwhile, due to the arrangement of the insert 7, the large plastic shell product at the position of the insert 7 is generally thicker, so that the damage of wind power to the large plastic shell product is reduced. After the blowing operation of the second functional hole 4 is completed, the first blowing channel is used for blowing the first functional hole 3, namely blowing is performed on the central line position of the large-sized plastic shell product, so that the problem that demolding is difficult due to large edge connecting force when demolding is directly performed on the center is solved, rigid contact ejection of the plastic product by a conventional ejection rod structure is avoided, and the damage to the plastic product is reduced.
Specifically, the first air blowing channel is provided with a first air supply port on the adjusting portion, the second air blowing channel is provided with a second air supply port on the adjusting portion, the adjusting portion is provided with a switching assembly 6, and the switching assembly 6 can realize the communication between the external air supply assembly and the first air supply port and the communication between the external air supply assembly and the second air supply port respectively.
FIG. 7 is a bottom view of the lower module, as shown in FIG. 7; the preferred, first air feed mouth with second air feed mouth all sets up on same horizontal plane, switching components 6 includes two regulating plates 61, two regulating plates 61 symmetry sets up the both sides of regulating part, two all be provided with the access hole on the regulating plate 61, access hole one end set up the air feed joint with outside air feed subassembly is connected, the other end corresponds first air feed mouth with the setting of second air feed mouth, regulating part one end is provided with first adjusting cylinder 62 through the fixed plate, first adjusting cylinder 62's telescopic link with regulating plate 61 one-to-one fixed connection, through the flexible drive of first adjusting cylinder 62 regulating plate 61 horizontal migration, thereby realize the access hole is in first air feed mouth with the round trip switch of second air feed mouth position.
Preferably, a sealing ring is arranged at one side of the inlet hole close to the adjusting part, so that when the inlet hole is connected with the first air supply port and the second air supply port, the air tightness effect of the connecting position is good.
EXAMPLE five
Because the regulating plate 61 needs to adjust the position and simultaneously needs to ensure the airtight effect of the inlet hole and the first air supply port and the second air supply port, the friction damage of the sealing ring is avoided.
The two adjusting plates 61 are respectively provided with a second adjusting cylinder 63, and telescopic rods of the two second adjusting cylinders 63 are arranged in parallel; be provided with clearing hole and fixed orifices on the regulating plate 61, the regulating part is provided with dodges the hole, the clearing hole is circular through-hole, it sets up to waist slot hole to dodge the hole, the fixed orifices is the screw hole, the telescopic link of second adjusting cylinder 63 passes in proper order the clearing hole dodge the hole and with fixed orifices thread fixed connection, through the flexible operation of second adjusting cylinder 63, adjustable two regulating plate 61 and centre distance between the regulating part to when carrying out the air supply mouth conversion, avoid the sealing washer with friction between the regulating part, simultaneously the centre gripping of second adjusting cylinder 63 can be guaranteed regulating plate 61 with closely laminating between the regulating part further improves hookup location's airtight effect.
The preferred, first air feed mouth with all be provided with the seal groove on the second air feed mouth, the seal groove corresponds the sealing washer sets up to the annular groove after the centre gripping of second adjusting cylinder 63, make the sealing washer deformation fill extremely in the seal groove to further improve hookup location's airtight effect.
It should be noted that, in the case where the first functional holes 3 and the second functional holes 4 are provided with the air discharge grooves, the first air supply port and the second air supply port can be opened by separating the two regulating plates 61 from the regulating portion during the injection molding process, so that the first functional holes 3 and the second functional holes 4 are directly communicated with the outside to discharge air.
Correspondingly, be provided with guide rail 64 on the fixed plate, first adjusting cylinder 62 passes through slider swing joint and is in on the slide rail, thereby second adjusting cylinder 63 is two when adjusting plate 61 carries out the distance modulation, first adjusting cylinder 62 follows adjusting plate 61 removes, avoids first adjusting cylinder 62's telescopic link atress bending damage.
Simultaneously, for guaranteeing two the regulating plate 61 removes evenly, the regulating part is two the fixed locating plate 65 that is provided with of central point department of putting between the first adjusting cylinder 62, the fixed guide bar 66 that is provided with on the locating plate 65, the fixed guide cylinder 67 that is provided with on the slider, guide bar 66 with the tip cover of guide cylinder 67 is established, makes guide bar 66 with but guide cylinder 67 relative axial displacement, in order to guarantee two the reverse movement of regulating plate 61 is stable.
Preferably, the cover is equipped with third elastic component 68 on the guide bar 66, third elastic component 68 one end with the tip contact of guide cylinder 67 is connected, the other end with locating plate 65 contacts and connects, just third elastic component 68 provides elasticity repulsion, thereby makes two regulating plate 61 atress is balanced, guarantees two regulating plate 61 with position change between the regulating part is the same, avoids appearing one side regulating plate 61 with the regulating part is near, the another side regulating plate 61 with the condition of regulating part distance is far away takes place, reduces the sealing washer with friction between the regulating part.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The forming die for the injection molding part with the insert is characterized by comprising an upper die component and a lower die component, wherein the upper die component and the lower die component are arranged in a matched mode, an upper die groove and a pouring system are formed in the upper die component, the lower die component comprises a lower die holder and a lower die block, the lower die block is arranged in the lower die holder, a lower die groove is formed in the lower die block, the lower die groove and the upper die groove form a die cavity for preparing the injection molding part after the upper die component and the lower die component are assembled, and the pouring system is communicated with the die cavity;
the lower module is provided with a plurality of first functional holes and a plurality of second functional holes, the first functional holes are arranged at the edge position of the lower die cavity, the second functional holes are arranged at the central line position of the lower die cavity, and the inserts are arranged in the first functional holes;
the first functional hole and the second functional hole are both provided with adjusting rods, the lower ends of the adjusting rods are in threaded connection with the lower die holder, the upper ends of the adjusting rods are provided with functional heads, and the functional heads are used for fixing the inserts or ensuring the smoothness of the inner wall of the lower die cavity;
the lower die block is provided with a guide hole, a guide column is fixedly arranged on the lower die base and arranged in the guide hole, a first elastic piece is sleeved outside the guide column, and two ends of the first elastic piece are respectively in contact with the lower die base and the lower die block.
2. The mold of claim 1, wherein the first and second function holes each comprise an adjustment section and a guide section, the adjustment section is disposed on a side close to the lower cavity, the adjustment section is disposed on a side away from the lower cavity, and the adjustment section and the guide section are coaxially disposed, the adjustment section having a diameter greater than the guide section.
3. The insert-containing injection molding piece molding die of claim 2, wherein the adjusting rod is a cylindrical rod, the functional head is a cylindrical rod, the adjusting rod is smaller than the diameter of the guiding section, the diameter of the functional head is smaller than the diameter of the adjusting section and larger than the diameter of the guiding section, and a vent groove gap is formed between the outer edge of the functional head and the adjusting section.
4. The mold for molding injection molding with insert according to claim 3, wherein the lower mold base is provided with an adjusting hole corresponding to each adjusting rod, the adjusting hole is provided with a placing section away from the end of the lower mold block, the adjusting hole is provided with a connecting section near the end of the lower mold block, the connecting section is provided with threads, the adjusting rod is in threaded connection with the connecting section, the end of the adjusting rod is provided with an adjusting head, the adjusting head is arranged in the placing section, the placing section is further provided with a second elastic member, the second elastic member is sleeved on the adjusting rod, and two ends of the second elastic member are respectively in contact with the adjusting head and the inner wall of the placing section.
5. The mold for molding injection-molded parts with inserts according to claim 2, wherein said lower mold block is provided with a blowing channel, said lower mold block comprises a molding portion and an adjusting portion, said adjusting portion is disposed at a lower portion of a center of said molding portion, said guide hole is disposed at said adjusting portion, said lower cavity is disposed at said molding portion, said blowing channel comprises an inlet section, an outlet section and a connecting section, said inlet section is disposed in said adjusting portion, said outlet section is disposed in said molding portion, said connecting section connects said inlet section and said outlet section at both ends, one end of said inlet section is disposed as an air supply port, said air supply port communicates with said external air supply assembly, and an end of said outlet section communicates with said first functional hole and said second functional hole.
6. The mold for molding injection-molded parts with insert according to claim 5, wherein said blow-off channel is provided with a first blow-off channel and a second blow-off channel, said first blow-off channel is provided corresponding to said first functional hole, said second blow-off channel is provided corresponding to said second functional hole, said first blow-off channel is provided with a first air supply port on said regulating portion, said second blow-off channel is provided with a second air supply port on said regulating portion, said regulating portion is provided with a switching assembly, and said external air supply assembly is communicated with said first air supply port and said second air supply port respectively through said switching assembly.
7. Molding tool for injection-molded parts with inserts according to claim 6, the first air supply port and the second air supply port are both arranged on the same horizontal plane, the switching assembly comprises two adjusting plates, the two adjusting plates are symmetrically arranged on two sides of the adjusting part, both the two adjusting plates are provided with inlet holes, one end of the inlet hole is provided with an air supply joint to be connected with the external air supply component, the other end of the inlet hole is arranged corresponding to the first air supply port and the second air supply port, one end of the adjusting part is provided with a first adjusting cylinder through a fixing plate, the telescopic rods of the first adjusting cylinders are fixedly connected with the adjusting plates in a one-to-one correspondence manner, through the flexible drive of first adjusting cylinder regulating plate horizontal migration realizes the manhole is in the round trip switch of first air feed mouth with the second air feed mouth position.
8. The mold for molding an injection molded part with an insert according to claim 7, wherein a side of the access hole adjacent to the adjustment portion is provided with a sealing ring; the two adjusting plates are respectively provided with a second adjusting cylinder, and telescopic rods of the two second adjusting cylinders are arranged in parallel; be provided with clearing hole and fixed orifices on the regulating plate, the regulating part is provided with dodges the hole, the clearing hole is circular through-hole, it sets up to waist slot hole to dodge the hole, the fixed orifices is the screw hole, second adjusting cylinder's telescopic link passes in proper order the clearing hole dodge the hole and with fixed orifices thread fixed connection, through second adjusting cylinder's flexible operation adjusts two regulating plate and centre distance between the regulating part.
9. The mold for molding an injection-molded part with an insert as claimed in claim 8, wherein the fixing plate is provided with a guide rail, the first adjusting cylinders are movably connected to the slide rail through a slide block, the adjusting portion is fixedly provided with a positioning plate at a central position between the two first adjusting cylinders, the positioning plate is fixedly provided with a guide rod, the slide block is fixedly provided with a guide cylinder, and the guide rod and the end of the guide cylinder are sleeved to enable the guide rod and the guide cylinder to move axially relative to each other.
10. The mold for molding an injection-molded part with an insert as claimed in claim 9, wherein said guide rod is sleeved with a third elastic member, one end of said third elastic member is in contact connection with the end of said guide cylinder, the other end of said third elastic member is in contact connection with said positioning plate, and said third elastic member provides elastic repulsion.
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| CN202210621722.3A CN114986794B (en) | 2022-06-02 | 2022-06-02 | Forming die of injection molding with inserts |
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| CN114986794B (en) | 2024-03-26 |
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Effective date of registration: 20240228 Address after: 226000 High tech Comprehensive Industrial Park, Tongzhou Bay Jianghai Linkage Development Demonstration Zone, Nantong City, Jiangsu Province, South Mudanjiang Road and East Nanhai Road Applicant after: Jiangsu Shiyi Electromechanical Technology Co.,Ltd. Country or region after: China Address before: 226100 No. 99, Hehai East Road, Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province Applicant before: Nantong Hetian Tools Co.,Ltd. Country or region before: China |
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