CN111267306A - Can mould plastics and have mould that corresponds inner groovy injection molding - Google Patents
Can mould plastics and have mould that corresponds inner groovy injection molding Download PDFInfo
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- CN111267306A CN111267306A CN202010205419.6A CN202010205419A CN111267306A CN 111267306 A CN111267306 A CN 111267306A CN 202010205419 A CN202010205419 A CN 202010205419A CN 111267306 A CN111267306 A CN 111267306A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 56
- 239000004033 plastic Substances 0.000 title claims description 3
- 229920003023 plastic Polymers 0.000 title claims description 3
- 238000000465 moulding Methods 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 239000003292 glue Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 230000008093 supporting effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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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
-
- 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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a mold capable of injecting an injection molding part with a corresponding inner groove, which comprises a fixed mold and a movable mold, wherein the fixed mold comprises a fixed mold frame, a fixed mold is fixedly connected to the middle of the fixed mold frame, and a molding cavity of the injection molding part is arranged on the fixed mold block; the movable die is provided with a frame and a movable die frame, the movable die frame is provided with two sliding blocks, each sliding block is fixedly connected with a movable module, the free end of each movable module is provided with a forming convex part, the two movable die blocks correspond to each other, the frame is connected with a stay bar, when the movable die and the fixed die are assembled, the forming convex parts of the two corresponding movable modules simultaneously extend into one forming cavity, and the free end of the stay bar is inserted into the forming cavity, is positioned between the forming convex parts of the two corresponding movable modules and supports the two forming convex parts; and when the movable mold is separated from the fixed mold, the movable mold frame is firstly separated from the frame, and then the mold buckle is unfastened to separate the movable mold from the fixed mold. The invention can form the injection molding part with the corresponding inner groove in one step, and the use reliability of the mold is high.
Description
Technical Field
The invention relates to the technical field of injection mold manufacturing, in particular to a mold capable of injecting an injection molding part with a corresponding inner groove.
Background
Nowadays, injection molded parts are widely used, which need to be manufactured by an injection mold and undergo a demolding process. Some injection molding parts are provided with two corresponding inner grooves 11a at two sides of an inner cavity as shown in figure 1, and in the injection molding process of the injection molding part 1a, due to the two corresponding inner grooves 11a, the separation of a molding mold core from the inner cavity of the part is difficult, and the production efficiency is low because the product usually needs secondary processing; when the size of the injection-molded article 1a is small, the molding core is easily broken by the extrusion of the molding pressure, resulting in failure of normal production.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mold capable of injection molding an injection molding part with a corresponding inner groove, which can be used for molding the injection molding part with the corresponding inner groove at one time, and has higher injection molding production efficiency and higher reliability of mold use.
In order to achieve the purpose, the technical scheme of the invention is as follows: a mold capable of injection molding an injection molding part with a corresponding inner groove comprises a fixed mold and a movable mold, wherein a fixed mold mounting plate is arranged on the fixed mold, a fixed mold frame is fixedly connected to one side, close to the movable mold, of the fixed mold mounting plate, and a glue injection opening is formed in the middle of one side, far away from the movable mold, of the fixed mold mounting plate; the movable mold is provided with a movable mold mounting plate, a yielding through hole is formed in the middle of the movable mold mounting plate, one side, close to the fixed mold, of the movable mold mounting plate is fixedly connected with a frame, the frame is fixedly connected with a plurality of guide pillars, a plurality of guide holes are formed in the fixed mold frame, each guide pillar is inserted into one guide hole when the movable mold is connected with the fixed mold, the middle of the fixed mold frame is fixedly connected with a fixed mold, the end face, facing one side of the movable mold, of the fixed mold block is provided with at least one molding cavity for injection molding, and the glue injection;
the movable mold also comprises a movable mold frame, the movable mold frame is sleeved on the guide pillars, the movable mold frame is provided with a stepped limiting through hole, a limiting screw is inserted into the limiting through hole and fixedly connected to the frame, and the limiting screw is matched with the limiting through hole to limit the separation distance between the movable mold frame and the frame;
two sliding blocks are arranged on the movable mould frame, the moving direction of the sliding blocks is vertical to the guide pillar, a movable module is fixedly connected onto each sliding block, a forming convex part is arranged at the free end of each movable module and used for forming an inner cavity and an inner groove of an injection molding piece, the movable modules on the two sliding blocks correspond to each other, and when the movable mould and the fixed mould are combined, the forming convex parts of the two corresponding movable modules simultaneously extend into one forming concave cavity;
the framework is connected with a support rod, the support rod is parallel to the guide pillar, and when the movable mold and the fixed mold are closed, the free end of the support rod is inserted into the molding cavity and is positioned between the molding convex parts corresponding to the two movable modules and supports the two molding convex parts;
the fixed die frame is fixedly connected with two shovel blocks, each sliding block is provided with a matching hole, and when the movable die and the fixed die are closed, each shovel block is inserted into the matching hole in one sliding block to enable the two sliding blocks to move away from each other; when the movable die is separated from the fixed die, each shovel block is separated from the matching hole on one sliding block, so that the two sliding blocks move close to each other;
and when the movable mold is separated from the fixed mold, the movable mold frame is separated from the frame by the mold buckle until the head of the limiting screw clamps the movable mold frame, and then the movable mold and the fixed mold can be separated by unlocking the mold buckle.
The improved mould is characterized in that the two sides of the free end of the support rod, corresponding to the two movable modules, are respectively provided with a first inclined plane, the two first inclined planes are splayed, one side of the forming convex part, corresponding to the free end of the support rod, of each movable module is provided with a second inclined plane, and when the movable mould and the fixed mould are combined, each first inclined plane is matched with one second inclined plane. So that the two side surfaces of the free end of the stay bar can be contacted with the two molding convex parts on the two movable modules to provide reliable support.
Still further, a pressure spring is arranged between the support rod and the frame, and the support rod can stretch and retract relative to the frame through the pressure spring. Therefore, the two first inclined planes of the free end of the support rod can be reliably contacted with the two second inclined planes of the forming convex part, and the supporting effect of the forming convex part is further improved.
The improved structure of the mould is characterized in that an insert is fixedly arranged on the fixed mould block, the insert is partially positioned in the middle of the forming concave cavity, a positioning groove is formed in one end of the insert, a positioning bulge is arranged at the end part of the free end of the supporting rod, and the positioning bulge is matched with the positioning groove when the movable mould and the fixed mould are combined. So as to improve the positioning performance of the stay bar and improve the supporting rigidity of the free end of the stay bar.
The improved injection molding device is characterized in that a first ejector block is arranged between the frame and the movable mold mounting plate, two ejector blocks are arranged on two sides of the corresponding movable mold, the ejector blocks are connected with the first ejector block through ejector rods, after the movable mold is separated from the fixed mold, the first ejector block drives the ejector blocks to move through the ejector rods, and the ejector blocks push the injection molding part away from the movable mold. So as to realize automatic discharge.
And when the injection molding machine pushes the second material pushing block, the free end of the thimble pushes the glue injection water gap away from the movable mold, and then the second material pushing block drives the first material pushing block to move so that the material pushing block pushes the injection molding part away from the movable mold. Thus, the glue injection water gap can be automatically removed.
The improved structure comprises a fixed die frame, a movable die frame, a fixed die and a fixed die, wherein the fixed die frame is provided with two first positioning convex parts on two sides respectively, the movable die frame is provided with two first positioning grooves on two sides, and when the movable die and the fixed die are assembled, each first positioning convex part is matched with one first positioning groove. So as to improve the die assembly precision of the movable die and the fixed die.
The improved structure is characterized in that four second positioning convex parts are arranged on the end face, close to the fixed die, of the movable die frame, four second positioning grooves are arranged on the end face, close to the movable die, of the fixed die frame, and when the movable die and the fixed die are assembled, each second positioning convex part is matched with one second positioning groove. The mold closing precision of the movable mold and the fixed mold is improved.
Preferably the die button comprises a locking block fixed on the fixed die frame and a lock tongue fixed on the movable die frame, a locking groove is formed in the locking block, a telescopic press block is arranged in the locking groove, a matching groove is formed in the lock tongue, when the movable die and the fixed die are assembled, the lock tongue is inserted into the locking groove, and the press block is pressed on the matching groove.
Preferably, the end surface of the fixed die block facing one side of the movable die is provided with two molding cavities of injection molding pieces, each slide block is fixedly connected with two movable die blocks, the movable die blocks on the two slide blocks correspond to each other pairwise, and when the movable die and the fixed die are closed, each pair of molding convex parts corresponding to the two movable die blocks extend into one molding cavity; the frame is fixedly connected with two support rods, and when the movable die and the fixed die are assembled, the free end of each support rod is inserted into one forming cavity and is positioned between the two forming convex parts corresponding to the movable die and supports the two forming convex parts.
When the movable mold and the fixed mold are assembled, the molding convex parts of the two corresponding movable modules simultaneously extend into one molding concave cavity; the free end of the stay bar is inserted into the molding cavity and is positioned between the molding convex parts corresponding to the two movable modules and provides support for the two molding convex parts; the vaulting pole is connected on the movable mould frame, and when the movable mould separated with the cover half, the mould was detained and is made movable mould frame with the frame separates earlier until the head of stop screw blocks behind the movable mould frame the mould is detained again and is untied and make movable mould and cover half just can accomplish the separation. After injection molding of the injection molding part, during mold opening, the frame can drive the support rod to break away from the molding convex part corresponding to the two movable modules, the molding convex part breaks away from the two corresponding inner grooves of the injection molding part to provide space, the molding convex part corresponding to the two movable modules can break away from the two corresponding inner grooves of the injection molding part under the driving of the two sliding blocks, the injection molding part can be demolded, and injection molding of parts can be completed at one time. Therefore, the injection molding piece with the corresponding inner groove can be molded at one time, and the injection molding production efficiency is effectively improved.
On the other hand, the injection molding is at the fashioned in-process of injecting glue, and the free end of vaulting pole provides the support to two shaping convex parts, lets the free end of two shaping convex parts and vaulting pole form one, just can prevent that two shaping convex parts from receiving the extrusion of shaping pressure and appearing the fracture, improves the reliability that the mould used, extension mould life reduces the manufacturing cost of injection molding.
Drawings
FIG. 1 is a perspective view of an injection molded part of the present invention with a corresponding internal recess;
FIG. 2 is a perspective view showing a fixed mold and a movable mold in a mold closing state according to the present invention;
FIG. 3 is a fixed die perspective view of the present invention;
FIG. 4 is a perspective view of a moving mold of the present invention;
FIG. 5 is a perspective view of hidden parts of FIG. 4;
FIG. 6 is a view from the direction A of FIG. 5;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a cross-sectional view C-C of FIG. 6;
FIG. 9 is a perspective view of a movable mold frame of the present invention;
FIG. 10 is a perspective view of the slider of the present invention;
FIG. 11 is a perspective view of a moving module of the present invention
FIG. 12 is a perspective view of a spacer of the present invention;
FIG. 13 is a perspective view of an insert according to the present invention
FIG. 14 is a perspective view of the locking block of the present invention;
fig. 15 is a perspective view of the locking bolt of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 15, a mold capable of injection molding an injection molding part with a corresponding inner groove comprises a fixed mold 100 and a movable mold 200, wherein the fixed mold 100 is provided with a fixed mold mounting plate 1, one side of the fixed mold mounting plate 1, which is close to the movable mold 200, is fixedly connected with a fixed mold frame 2, and the middle of one side of the fixed mold mounting plate 1, which is far away from the movable mold 200, is provided with a glue injection port 11; be equipped with movable mould mounting panel 3 on the movable mould 200, the centre of movable mould mounting panel 3 is equipped with the through-hole of stepping down 31, and movable mould mounting panel 3 is close to cover half 100 one side and has linked firmly a frame 4, and frame 4 is the U shape roughly, four guide pillars 41 have been linked firmly on frame 4, are equipped with four guiding holes 21 on the cover half frame 2, and every guide pillar 41 is inserted one when movable mould 200 and cover half 100 joint in the guiding hole 21, cover half 5 has been linked firmly in the middle of the cover half frame 2, is equipped with the shaping cavity 51 of two injection molding 1a on the terminal surface of cover half 5 towards movable mould 200 one side, injecting glue mouth 11 is through injecting glue runner 12 intercommunication shaping cavity 51.
The movable mold 200 further comprises a movable mold frame 6, four guide through holes 61 and two stepped limiting through holes 62 are arranged on the movable mold frame 6, the movable mold frame 6 is sleeved on four guide posts 41 by using the four guide through holes 61, two limiting screws 621 are respectively inserted into the two limiting through holes 62 and then fixedly connected to the frame 4, and the limiting screws 621 are matched with the limiting through holes 62 to limit the separation distance between the movable mold frame 6 and the frame 4.
Two sliding blocks 7 are arranged on the movable mould frame 6, the moving direction of the sliding blocks 7 is vertical to the guide pillar 41, two movable modules 8 which are arranged in parallel are fixedly connected to each sliding block 7, a forming convex part 81 is arranged at the free end of each movable module 8, the forming convex part 81 is used for forming an inner cavity and an inner groove 11a of an injection molding part 1a, and a boss 812 on the side surface of the forming convex part 81 is used for forming the inner groove 11a of the injection molding part 1 a; each slide block 7 is provided with a positioning convex part 71, each movable module 8 is provided with a positioning groove 82, the two movable modules 8 are clamped on the same positioning convex part 71 of the slide block 7 by utilizing the positioning grooves 82 and then are fixedly connected with the slide block 7 by utilizing bolts, the movable modules 8 on the two slide blocks 7 correspond to each other in pairs, and when the movable die 200 and the fixed die 100 are closed, the forming convex parts 81 of each pair of corresponding two movable modules 8 simultaneously extend into one forming concave cavity 51;
two support rods 9 are connected to the frame 4, each support rod 9 is parallel to the guide post 41, and when the movable mold 200 and the fixed mold 100 are closed, the free end of each support rod 9 is inserted into one molding cavity 51 and is positioned between the molding protrusions 81 corresponding to the two movable mold blocks 8 to support the two molding protrusions 81.
The free end of the stay bar 9 is provided with a first inclined plane 91 corresponding to both sides of the two movable modules 8, the two first inclined planes 91 are splayed, one side of the forming convex part 81 of each movable module 8 corresponding to the free end of the stay bar 9 is provided with a second inclined plane 811, and when the movable die 200 and the fixed die 100 are closed, each first inclined plane 91 is matched with one second inclined plane 811; a compression spring 92 is arranged between the stay rod 9 and the frame 4, and the stay rod 9 can be extended and retracted relative to the frame 4 through the compression spring 92. This facilitates the cooperation of the first inclined surface 91 and the second inclined surface 811, so that the stay bar 9 provides a reliable support for the two shaped protrusions 81.
The fixed die block 5 is further fixedly provided with two insert pieces 52, part of each insert piece 52 is positioned in the middle of the forming concave cavity 51, the insert piece 52 participates in forming the inner cavity of the injection molding part 1a, one end of each insert piece 52 is provided with a positioning groove 521, the end part of the free end of the support rod 9 is provided with a positioning bulge 92, and when the movable die 200 and the fixed die 100 are assembled, the positioning bulge 92 is matched with the positioning groove 521. This also facilitates the positioning of the free end of the stay 9 and improves the supporting rigidity of the stay 9.
The fixed die frame 2 is fixedly connected with two shovel blocks 22, each sliding block 7 is provided with a matching hole 72, and when the movable die 200 and the fixed die 100 are closed, each shovel block 22 is inserted into the matching hole 72 on one sliding block 7 to enable the two sliding blocks 7 to move away from each other; when the movable die 200 is separated from the fixed die 100, each shovel block 22 is separated from the matching hole 72 on one sliding block 7, so that the two sliding blocks 7 move close to each other; each shovel block 22 is provided with a driving inclined surface 221, the driving inclined surfaces 221 of the two shovel blocks 22 are splayed, the matching holes 72 are provided with matching inclined surfaces 721, and the two matching inclined surfaces 721 are also correspondingly splayed.
Two die buckles 10 are arranged between the movable die frame 6 and the fixed die frame 2, when the movable die 200 is separated from the fixed die 100, the die buckles 10 enable the movable die frame 6 to be separated from the frame 4 firstly until the head of the limiting screw 621 clamps the movable die frame 6, and then the die buckles 10 are released again to enable the movable die 200 to be separated from the fixed die 100.
The die buckle 10 comprises a locking block 101 fixed on the fixed die frame 2 and a lock tongue 102 fixed on the movable die frame 6, a locking groove 1011 is formed in the locking block 101, a telescopic pressing block 1012 is arranged in the locking groove 1011, a matching groove 1021 is formed in the middle of the lock tongue 102, when the movable die 200 and the fixed die 100 are assembled, the lock tongue 102 is inserted into the locking groove 1011, and the pressing block 1012 is pressed on the matching groove 1021. The locking tongue 102 is provided with a guiding inclined surface 1022 on a side near an end portion thereof to facilitate insertion into the locking groove 1011.
A first ejector block 42 is arranged between the frame 4 and the movable mold mounting plate 3, the first ejector block 42 is formed by fixedly connecting two plates, ejector blocks 421 are arranged on two sides of the corresponding movable mold blocks 8, the ejector blocks 421 are connected with the first ejector block 42 through a plurality of ejector rods 422, after the movable mold 200 is separated from the fixed mold 100, the first ejector block 42 drives the ejector blocks 421 to move through the plurality of ejector rods 422, and the ejector blocks 421 push the injection molding 1a away from the movable mold 200. The end surfaces of the plurality of the push blocks 421 close to the fixed mold 100 cooperate with the molding cavities 51 to prevent the glue from flowing into the movable mold 200.
A second ejector block 43 is further arranged between the frame 4 and the movable mold mounting plate 3, the second ejector block 43 is also formed by fixedly connecting two plates, a thimble 431 is fixedly connected to the second ejector block 43, the free end of the thimble 431 corresponds to the glue injection flow channel 12, when the injection molding machine pushes the second ejector block 43, the free end of the thimble 431 pushes the glue injection nozzle away from the movable mold 200, and then the second ejector block 43 drives the first ejector block 42 to move, so that the ejector block 421 pushes the injection molding 1a away from the movable mold 200.
Two first positioning convex parts 23 are respectively arranged on two sides of the fixed die frame 2, two first positioning grooves 63 are arranged on two sides of the movable die frame 6, and when the movable die 200 and the fixed die 100 are assembled, each first positioning convex part 23 is matched with one first positioning groove 63. So as to improve the mold clamping accuracy of the movable mold 200 and the fixed mold 100.
Four second positioning convex parts 64 are arranged on the end face, close to the fixed die 100, of the movable die frame 6, four second positioning grooves 24 are arranged on the end face, close to the movable die 200, of the fixed die frame 2, and when the movable die 200 and the fixed die 100 are assembled, each second positioning convex part 64 is matched with one second positioning groove 24. So as to further improve the mold clamping accuracy of the movable mold 200 and the fixed mold 100.
The working process of the embodiment is as follows: after the movable mold 200 and the fixed mold 100 are assembled, the injection molding machine injects rubber material from the rubber injection port 11 of the fixed mold 100, and the rubber material flows into the two molding cavities 51 through the rubber injection runner 12 to mold two injection molded parts 1a at the same time.
When the mold is opened, due to the action of the two mold buckles 10, the frame 4 is firstly separated from the movable mold frame 6, the free ends of the two support rods 9 are respectively separated from the forming convex parts 81 corresponding to the two movable mold blocks 8 under the driving of the frame 4, then the head parts of the limit screws 621 clamp the movable mold frame 6, the two mold buckles 10 are unfastened to separate the movable mold 200 from the fixed mold 100, at the moment, the two pairs of forming convex parts 81 corresponding to the two movable mold blocks 8 take the two injection molded parts 1a and the glue injection port out of the fixed mold 5, then the ejector rods of the injection molding machine penetrate through the abdicating through holes 31 in the middle of the movable mold mounting plate 3 to push the second ejector block 43, the free ends of the ejector pins 431 firstly push the glue injection port out of the movable mold 200, then the ejector rods of the injection molding machine continuously push the second ejector block 43, and the second ejector block 43 then drives the first ejector block 42 to move so. Completing a work cycle.
The above is only a preferred embodiment of the invention and all equivalent modifications made by those skilled in the art according to the claims fall within the scope of the present invention.
Claims (10)
1. A mold capable of injection molding an injection molding part with a corresponding inner groove comprises a fixed mold and a movable mold, wherein a fixed mold mounting plate is arranged on the fixed mold, a fixed mold frame is fixedly connected to one side, close to the movable mold, of the fixed mold mounting plate, and a glue injection opening is formed in the middle of one side, far away from the movable mold, of the fixed mold mounting plate; be equipped with the movable mould mounting panel on the movable mould, the centre of movable mould mounting panel is equipped with the through-hole of stepping down, and the movable mould mounting panel is close to cover half one side and has linked firmly a frame, many guide pillars have been linked firmly on the frame, are equipped with a plurality of guiding holes on the cover half frame, and every guide pillar is inserted one when movable mould and cover half joint in the guiding hole, its characterized in that:
the middle of the fixed mold frame is fixedly connected with a fixed mold, the end surface of one side of the fixed mold, which faces the movable mold, is provided with at least one molding cavity for injection molding, and the injection port is communicated with the molding cavity through an injection runner;
the movable mold also comprises a movable mold frame, the movable mold frame is sleeved on the guide pillars, the movable mold frame is provided with a stepped limiting through hole, a limiting screw is inserted into the limiting through hole and fixedly connected to the frame, and the limiting screw is matched with the limiting through hole to limit the separation distance between the movable mold frame and the frame;
two sliding blocks are arranged on the movable mould frame, the moving direction of the sliding blocks is vertical to the guide pillar, a movable module is fixedly connected onto each sliding block, a forming convex part is arranged at the free end of each movable module and used for forming an inner cavity and an inner groove of an injection molding piece, the movable modules on the two sliding blocks correspond to each other, and when the movable mould and the fixed mould are combined, the forming convex parts of the two corresponding movable modules simultaneously extend into one forming concave cavity;
the framework is connected with a support rod, the support rod is parallel to the guide pillar, and when the movable mold and the fixed mold are closed, the free end of the support rod is inserted into the molding cavity and is positioned between the molding convex parts corresponding to the two movable modules and supports the two molding convex parts;
the fixed die frame is fixedly connected with two shovel blocks, each sliding block is provided with a matching hole, and when the movable die and the fixed die are closed, each shovel block is inserted into the matching hole in one sliding block to enable the two sliding blocks to move away from each other; when the movable die is separated from the fixed die, each shovel block is separated from the matching hole on one sliding block, so that the two sliding blocks move close to each other;
and when the movable mold is separated from the fixed mold, the movable mold frame is separated from the frame by the mold buckle until the head of the limiting screw clamps the movable mold frame, and then the movable mold and the fixed mold can be separated by unlocking the mold buckle.
2. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: the two sides of the free end of the supporting rod corresponding to the two movable modules are respectively provided with a first inclined plane, the two first inclined planes are splayed, one side of the forming convex part of each movable module corresponding to the free end of the supporting rod is provided with a second inclined plane, and when the movable die and the fixed die are assembled, each first inclined plane is matched with one second inclined plane.
3. A mold as defined in claim 2, adapted to inject a plastic injection molded part having a corresponding internal recess, wherein: a pressure spring is arranged between the support rod and the frame, and the support rod can stretch and retract relative to the frame through the pressure spring.
4. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: the fixed die block is further fixedly provided with an insert, the insert is partially positioned in the middle of the forming concave cavity, one end of the insert is provided with a positioning groove, the end part of the free end of the support rod is provided with a positioning bulge, and when the movable die and the fixed die are closed, the positioning bulge is matched with the positioning groove.
5. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: the injection molding device is characterized in that a first material pushing block is arranged between the frame and the movable mold mounting plate, two material pushing blocks are arranged on two sides of the movable module, the material pushing blocks are connected with the first material pushing block through ejector rods, after the movable mold is separated from the fixed mold, the first material pushing block drives the material pushing block to move through the ejector rods, and the material pushing block pushes the injection molding part away from the movable mold.
6. A mold as in claim 5, wherein the mold is adapted to inject a molded part having a corresponding internal recess, the mold comprising: the injection molding machine is characterized in that a second ejector block is further arranged between the frame and the movable mold mounting plate, an ejector pin is fixedly connected to the second ejector block, the free end of the ejector pin corresponds to the injection molding runner, when the injection molding machine pushes the second ejector block, the free end of the ejector pin pushes the injection molding water gap away from the movable mold, and then the second ejector block drives the first ejector block to move so that the ejector block pushes the injection molding piece away from the movable mold.
7. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: two first positioning convex parts are respectively arranged on two sides of the fixed die frame, two first positioning grooves are arranged on two sides of the movable die frame, and when the movable die and the fixed die are assembled, each first positioning convex part is matched with one first positioning groove.
8. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: the end face, close to the fixed die, of the movable die frame is provided with four second positioning convex parts, the end face, close to the movable die, of the fixed die frame is provided with four second positioning grooves, and when the movable die and the fixed die are assembled, each second positioning convex part is matched with one second positioning groove.
9. A mold as defined in claim 1, adapted to inject a molded part having a corresponding internal recess, wherein: the die button comprises a locking block fixed on the fixed die frame and a spring bolt fixed on the movable die frame, a locking groove is formed in the locking block, a telescopic pressing block is arranged in the locking groove, a matching groove is formed in the spring bolt, the spring bolt is inserted into the locking groove when the movable die and the fixed die are combined, and the pressing block is pressed on the matching groove.
10. A mold as claimed in any one of claims 1 to 9, wherein the mold is adapted to be injection molded with a corresponding female injection molded part, wherein: the end surface of one side of the fixed die block facing the movable die is provided with two molding cavities of injection molding pieces, each sliding block is fixedly connected with two movable dies, the movable dies on the two sliding blocks correspond to each other pairwise, and when the movable die and the fixed die are combined, each pair of molding convex parts corresponding to the two movable dies extend into one molding cavity; the frame is fixedly connected with two support rods, and when the movable die and the fixed die are assembled, the free end of each support rod is inserted into one forming cavity and is positioned between the two forming convex parts corresponding to the movable die and supports the two forming convex parts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205419.6A CN111267306A (en) | 2020-03-23 | 2020-03-23 | Can mould plastics and have mould that corresponds inner groovy injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205419.6A CN111267306A (en) | 2020-03-23 | 2020-03-23 | Can mould plastics and have mould that corresponds inner groovy injection molding |
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| CN111267306A true CN111267306A (en) | 2020-06-12 |
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