CN119635986B - Injection mold of secondary ejection and anti-collision ejector pin - Google Patents
Injection mold of secondary ejection and anti-collision ejector pinInfo
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- CN119635986B CN119635986B CN202411724210.5A CN202411724210A CN119635986B CN 119635986 B CN119635986 B CN 119635986B CN 202411724210 A CN202411724210 A CN 202411724210A CN 119635986 B CN119635986 B CN 119635986B
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Abstract
本发明涉及一种二次顶出及防撞顶针的注塑模具，属于注塑模具技术领域，包括：底座、顶针板、联动件及支撑件，底座的内部设有升降区，底端设有顶出孔，顶端设有穿针孔；型槽的槽底设有通针孔；顶针板置于升降区内且其顶端固定有伸入穿针孔和通针孔并用于顶出注塑成品的顶针。本发明先利用联动件的下端固定在顶针板上，由于联动件的上端可拆卸连接在下模板上，可以在利用顶出杆推动顶针板向上移动的同时，联动上模板向上移动，便于模芯退脱离注塑成品；而后再利用支撑件的下端固定在底座上，由于支撑件的上端可拆卸连接在下模板上，可以在模芯脱离注塑成品后，解开上模板与联动件之间的连接并连接定位支撑下模板，便于继续上升的顶针顶出注塑成品。
This invention relates to an injection mold with secondary ejection and anti-collision ejector pins, belonging to the field of injection mold technology. It includes: a base, an ejector plate, a linkage component, and a support component. The base has a lifting area inside, an ejection hole at the bottom, and a pin-through hole at the top. The bottom of the mold groove has a pin-through hole. The ejector plate is placed within the lifting area, and its top is fixed with ejector pins that extend into the pin-through hole and pin-through hole for ejecting the injection-molded product. This invention first uses the lower end of the linkage component to fix itself to the ejector plate. Since the upper end of the linkage component is detachably connected to the lower mold plate, the upper mold plate can be moved upwards simultaneously by pushing the ejector plate upwards with the ejector rod, facilitating the ejection of the mold core from the injection-molded product. Then, the lower end of the support component is fixed to the base. Since the upper end of the support component is detachably connected to the lower mold plate, after the mold core detaches from the injection-molded product, the connection between the upper mold plate and the linkage component can be released, and the lower mold plate can be connected and positioned to support it, facilitating the continued upward ejection of the injection-molded product by the ejector pins.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection mold with a secondary ejection and anti-collision thimble.
Background
The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a processing method used in mass production of parts with complex shapes, and specifically refers to injection molding of heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and cooling and solidification are carried out to obtain a molded product.
At present, the traditional injection mold mainly comprises an upper mold plate, a lower mold plate, a mold core and a push rod, wherein an upper mold groove is formed in the bottom surface of the upper mold plate, the lower mold plate is positioned below the upper mold plate, a lower mold groove is formed in the top surface of the lower mold plate, a top hole is formed in the bottom of the lower mold groove, the mold core is placed in the lower groove, the push rod slides in the top hole and can push the mold core to move upwards, in practical application, the upper mold plate is pressed on the lower mold plate, the push rod is placed in the top hole to form an injection molding cavity among the push rod, the mold core, the upper mold groove and the lower mold groove, and after a finished product is formed in the injection molding cavity, the push rod can be pushed upwards to push out the mold core and an injection molding product. The structure can realize quick ejection of the injection molding product, but the injection molding product is not separated from the mold core, and needs to be manually separated, so that not only can the labor intensity of staff be increased and the injection molding efficiency be reduced, but also the injection molding product is extremely easy to be subjected to demolding tearing, the demolding efficiency and the demolding effect of the injection molding product are affected, and the defective rate of the injection molding product is increased.
Therefore, how to design an injection mold with simple structure, convenient operation, difficult tearing and easy taking out of injection molding products is a problem to be solved by the technicians in the field.
Disclosure of Invention
The invention provides an injection mold with a secondary ejection and anti-collision ejector pin, which solves the technical problems that the existing injection mold is difficult to demould, difficult to take out and easy to generate demoulding cracks.
The technical scheme for solving the technical problems is that the injection mold of the secondary ejection and anti-collision thimble comprises a lower mold plate and an upper mold plate, wherein a mold groove is formed in the top surface of the lower mold plate, the upper mold plate is arranged on the lower mold plate and provided with a pouring hole communicated with the mold groove, and the injection mold further comprises:
The injection molding machine comprises a base, a lower template, a lifting zone, a core, a needle penetrating hole, a core hole and a needle penetrating hole, wherein the core is fixed at the top end of the base, a lifting zone with two through sides is arranged in the base, an ejection hole communicated with the lifting zone is arranged at the bottom end of the base, and the needle penetrating hole communicated with the lifting zone is arranged at the top end of the base;
The ejector plate is arranged in the lifting area, and the top end of the ejector plate is fixedly provided with an ejector pin which extends into the needle penetrating hole and is used for ejecting an injection molding finished product;
the lower end of the linkage piece is fixed on the side wall of the thimble plate, the lower end of the support piece is fixed on the side wall of the base, the upper end of the linkage piece and the upper end of the support piece are connected with the lower die plate in a convertible mode, so that the die core is separated from the injection molding finished product, and the lower die plate is connected with the linkage piece after being separated from the connection, so that the lower die plate is connected and positioned.
The ejector pin plate structure has the beneficial effects that the structure of a traditional injection mold is improved, the lower end of the linkage piece is firstly utilized to be fixed on the ejector pin plate, and the upper end of the linkage piece is detachably connected to the lower template, so that the ejector pin plate can be pushed to move upwards by utilizing the ejector rod and simultaneously is linked with the upper template to move upwards, the fixed mold core is convenient to withdraw from an injection molding cavity and separate from an injection molded finished product formed in the injection molding cavity, and then the lower end of the support piece is utilized to be fixed on the base, and the upper end of the support piece is detachably connected to the lower template, so that after the mold core is separated from the injection molded finished product, the upper template and the linkage piece are disconnected and the lower template is supported to be not to move upwards or downwards any more, and the ejector pin which moves upwards continuously along with the ejector pin plate can conveniently pass through the through-needle hole to stretch out the injection molded finished product in the injection molding cavity, so that the mold core is separated from the injection molded finished product before the ejector pin is ejected out of the injection molded finished product, the demolding efficiency and the separation effect of the injection molded finished product are improved, and the yield of the injection molded product is improved.
On the basis of the technical scheme, the invention can be improved as follows.
The base comprises a lower plate and an upper plate, wherein the top end of the lower plate is provided with lifting grooves penetrating through two sides of the lower plate, the upper plate is arranged on the lower plate, the bottom end of the mold core is fixed at the top end of the upper plate, the lifting area is the lifting grooves, the ejection holes are formed in the lower plate, the needle penetrating holes are formed in the upper plate, and the lower mold plate is arranged on the upper plate.
Further, the mold core comprises a first movable mold core block, a second movable mold core block and a fixed mold core block, wherein the first movable mold core block is arranged in the groove, the bottom end of the first movable mold core block is provided with a containing groove opposite to the core hole, and the side wall of the first movable mold core block is provided with an outlet communicated with the containing groove; the second movable mold core block is arranged at the bottom of the groove and is positioned in the accommodating groove, a lug is fixed on the side surface of the second movable mold core block corresponding to the outlet hole, the side surface of the second movable mold core block, which is far away from the outlet hole, is a first inclined surface which is inclined and arranged in a direction close to the outlet hole from top to bottom in sequence, the bottom end of the fixed mold core block is fixed at the top end of the base and penetrates through the core hole to extend into the accommodating groove, the side surface of the fixed mold core block, which is close to the first movable mold core block, is a second inclined surface which is inclined and arranged in a direction away from the outlet hole from bottom to top in sequence, and the second inclined surface is in sliding contact with the first inclined surface so as to link the first movable mold core block and the second movable mold core block to downwards move along with the lower die plate, so that the lug extends out of the outlet hole to be arranged above the through hole.
The movable mold core block has the further beneficial effects that the lower mold plate is utilized to link the first movable mold core block and the second movable mold core block, the first inclined surface of the second movable mold core block is in sliding contact with the second inclined surface of the fixed mold core block, so that when the first movable mold core block and the second movable mold core block move upwards, the fixed mold core block pushes the protruding block on the second movable mold core block to retract into the opening hole, and the protruding block of the protruding opening hole is positioned above the through needle hole, and the ejector pin plate, the ejector pin and the lower mold plate synchronously move, so that the ejector pin can be prevented from colliding with the protruding block.
1. The linkage piece comprises two linkage strips and two clamping blocks, wherein the two linkage strips are arranged along the vertical line direction of the base, the lower ends of the two linkage strips are respectively fixed on two sides of the ejector plate, clamping grooves are formed in the upper ends of the two linkage strips, first grooves are formed in two sides of the lower template and are respectively and oppositely arranged with the two linkage strips, and the two clamping blocks are respectively and elastically connected to the bottoms of the two first grooves through springs and can extend out of the corresponding first grooves to extend into the corresponding clamping grooves so as to realize detachable connection of the linkage strips and the upper template.
The movable connecting device has the further beneficial effects that the two clamping blocks are respectively and elastically connected with the bottoms of the two first grooves on the two sides of the upper template through the springs, and when the clamping blocks extend into or withdraw from the corresponding clamping grooves, the movable connecting device can realize the detachable connection between the linkage slat and the upper template.
The upper die plate is characterized by further comprising two limiting blocks, wherein mounting grooves are formed in two sides of the upper die plate, the two mounting grooves are respectively and oppositely arranged with the two linkage battens, the two limiting blocks are respectively and elastically connected to the bottoms of the two mounting grooves through springs, and the two limiting blocks can extend out of the corresponding mounting grooves to be lapped on the top ends of the corresponding linkage battens.
The support piece comprises two support strips and two support blocks, wherein the two support strips are arranged along the vertical direction of the base, the lower ends of the two support strips are respectively fixed on two sides of the base, second grooves are respectively formed in two sides of the lower template and are respectively arranged opposite to the two support strips, the two support blocks are respectively and elastically connected to the bottoms of the two second grooves through springs, and the corresponding second grooves can extend out and overlap the tops of the corresponding support strips so as to realize detachable connection of the support strips and the upper template.
The ejector pin is characterized in that the two supporting blocks are respectively and elastically connected to the bottoms of the two second grooves on the two sides of the upper die plate through springs, and the supporting blocks can be lapped on the top ends of the corresponding supporting laths after the clamping blocks exit the clamping grooves, so that the upper die plate is prevented from falling, and the ejector pins which move upwards are convenient to continue to eject injection molding finished products in the injection molding cavity.
Further, the device also comprises two reset laths, wherein the two reset laths are arranged along the vertical line direction of the base, the upper ends of the two reset laths are respectively fixed on the two sides of the upper template, the two reset laths are respectively arranged opposite to the two support laths, and the side surfaces of the two reset laths, which are close to the upper template, are respectively provided with accommodating grooves; the two support strips can extend into the two accommodating grooves respectively, and the reset strips corresponding to the two sides of the accommodating grooves can be contacted with the corresponding support blocks so as to push the support blocks into the second grooves.
The die assembly has the further beneficial effects that the two reset battens are respectively contacted with the two support blocks, and the two limiting blocks can be respectively lapped at the top ends of the two linkage battens, so that the support blocks can be retracted into the second grooves before the die assembly of the upper die plate and the lower die plate, and the die assembly between the lower die plate and the base is completed.
The injection molding die comprises a lower die plate, a core pulling groove, a sliding groove, a core pulling groove, an injection molding cavity and a gap, wherein the sliding groove is communicated with the mold groove, the sliding groove penetrates through the side face of the lower die plate, the core pulling groove slides in the sliding groove from the direction close to the mold groove to the direction far away from the mold groove, and the injection molding cavity is a gap among the upper die plate, the mold groove, the mold core and the core pulling groove.
The core pulling device comprises a core pulling device, a core pulling device and a fixing device, wherein the core pulling device is characterized by further comprising a fixing column, fixing holes penetrating through two ends of the core pulling device are formed in the core pulling device, a fixing groove which can be communicated with the core pulling device in a relative mode is formed in the top end of the upper die plate, and the top end of the fixing column is fixed at the bottom end of the upper die plate and can penetrate through the fixing holes to be fixed in the fixing groove.
Further, the axis of the fixed column and the axis of the fixed hole are arranged at a preset included angle with the vertical line of the base.
Drawings
FIG. 1 is a schematic perspective view of an injection mold with a secondary ejection and anti-collision ejector pin according to the present invention;
FIG. 2 is a schematic side view of an injection mold with a secondary ejection and anti-collision ejector pin according to the present invention;
FIG. 3 is a schematic top view of an injection mold with a secondary ejection and anti-collision ejector pin according to the present invention;
FIG. 4 is a schematic cross-sectional view of the mold assembly of FIGS. 3 A-A;
FIG. 5 is a schematic cross-sectional view of the die opening of FIGS. 3 A-A;
FIG. 6 is a schematic cross-sectional view of the primary ejection of FIG. 3 A-A;
FIG. 7 is a schematic cross-sectional view of the secondary ejection of FIGS. 3 A-A;
FIG. 8 is a schematic cross-sectional view of the first mold closing operation of FIGS. 3 A-A;
FIG. 9 is a schematic cross-sectional view of the second snap action of FIGS. 3 A-A;
FIG. 10 is a schematic cross-sectional view of the third snap action of FIGS. 3 A-A;
FIG. 11 is a schematic cross-sectional view of the completion of the snap action of FIGS. 3 A-A.
In the drawings, the list of components represented by the various numbers is as follows:
1. Lower die plate, 11, profile groove, 12, core hole, 13, through pin hole, 14, first groove, 15, second groove, 2, upper die plate, 21, pouring hole, 22, mounting groove, 3, base, 31, ejection hole, 32, threading pin hole, 33, lower plate, 331, lifting groove, 34, upper plate, 4, ejector pin plate, 5, linkage piece, 51, linkage slat, 511, clamping groove, 52, clamping block, 6, support piece, 61, support slat, 62, support block, 7, mold core, 71, first movable mold core block, 711, accommodating groove, 72, second movable mold core block, 73, fixed mold core block, 74, bump, 8, ejector pin, 9, ejector pin, 10, injection molded product, 16, stopper, 17, reset slat, 18, core pulling, 19, and fixed column.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in figures 1 and 4, the injection mold for the secondary ejection and anti-collision ejector pin comprises a lower mold plate 1, an upper mold plate 2, a base 3, an ejector pin plate 4, a linkage piece 5 and a supporting piece 6, wherein a groove 11 is formed in the top surface of the lower mold plate 1, the upper mold plate 2 is arranged on the lower mold plate 1 and provided with a pouring hole 21 communicated with the groove 11,
The lower template 1 is arranged on the base 3, the top end of the base 3 is fixedly provided with a mold core 7, the inside of the base is provided with a lifting area with two through sides, the bottom end of the base is provided with an ejection hole 31 communicated with the lifting area, the top end of the base is provided with a needle penetrating hole 32 communicated with the lifting area, the bottom of the mold groove 11 is provided with a core hole 12 and a needle penetrating hole 13 which is opposite to the needle penetrating hole 32, the mold core 7 penetrates through the core hole 12 to extend into the mold core 11 and define an injection molding cavity between the mold core 7, the mold groove 11 and the upper template 2, the ejector pin plate 4 is arranged in the lifting area, the top end of the ejector pin plate 4 is fixedly provided with an ejector pin 9 which extends into the needle penetrating hole 32 and the needle penetrating hole 13 and is used for ejecting an injection molded product, the ejector pin 8 which slides in the ejection hole 31 and can push the ejector pin plate 4 to move upwards, the linkage piece 5 and the support piece 6, the lower end of the linkage piece 5 is fixedly arranged on the side wall of the ejector pin 4, the lower end of the support piece 6 is fixedly arranged on the side wall of the base 3, the upper end of the linkage piece 5 and the upper end of the support piece 6 can be connected with the lower template 1 in a switching manner so that the mold core 7 is separated from the injection molded product 10, and the lower template 1 is positioned after the lower template 1 is disconnected from the linkage piece 5.
As shown in fig. 1 and 2, in some embodiments, the base 3 may include a lower plate 33 and an upper plate 34, wherein a lifting groove 331 penetrating through both sides of the lower plate 33 is provided at a top end of the lower plate 33, the upper plate 34 is disposed on the lower plate 33, a bottom end of the mold core 7 is fixed at a top end of the upper plate 34, a lifting area is the lifting groove 331, an ejection hole 31 is provided on the lower plate 33, a needle penetrating hole 32 is provided on the upper plate 34, and the lower mold plate 1 is disposed on the upper plate 34.
As shown in fig. 7 and 8, in some embodiments, the mold core 7 may include a first movable mold core block 71, a second movable mold core block 72 and a fixed mold core block 73, where the first movable mold core block 71 is disposed in the mold groove 11, and the bottom end of the first movable mold core block is provided with a receiving groove 711 opposite to the core hole 12, and the side wall of the first movable mold core block is provided with an outlet hole communicated with the receiving groove 711, the second movable mold core block 72 is disposed at the bottom of the mold groove 11 and in the receiving groove 711, the side surface of the second movable mold core block 72 corresponding to the outlet hole is fixed with a bump 74, and the side surface of the second movable mold core block 72 away from the outlet hole is a first inclined surface which is inclined from top to bottom in order to approach the outlet hole direction, the bottom end of the fixed mold core block 73 is fixed at the top end of the base 3 and extends into the receiving groove 711 through the core hole 12, and the side surface of the fixed mold core block 73 adjacent to the first movable mold core block 71 is a second inclined surface which is inclined from bottom to top in order to approach the outlet hole direction, and the second inclined surface is in sliding contact with the first inclined surface to move downward along with the lower mold core 1, and the first movable block 71 and the second movable block 72 moves downward to make the bump 74 extend upward to the upper through the outlet hole 13.
As shown in fig. 7, in some embodiments, the linkage member 5 includes two linkage laths 51 and two clamping blocks 52, the two linkage laths 51 are all arranged along the vertical direction of the base 3, the lower ends of the two linkage laths 51 are respectively fixed at two sides of the ejector plate 4, clamping grooves 511 are respectively formed at the upper ends of the two linkage laths 51, first grooves 14 are respectively formed at two sides of the lower template 1, the two first grooves 14 are respectively arranged opposite to the two linkage laths 51, the two clamping blocks 52 are respectively elastically connected at the bottoms of the two first grooves 14 through springs, and the corresponding first grooves 14 can extend into the corresponding clamping grooves 511 to realize detachable connection of the linkage laths 51 and the upper template 2.
As shown in fig. 5, in some specific embodiments, the device may further include two limiting blocks 16, wherein both sides of the upper template 2 are respectively provided with a mounting groove 22, the two mounting grooves 22 are respectively arranged opposite to the two linkage battens 51, and the two limiting blocks 16 are respectively elastically connected to the bottoms of the two mounting grooves 22 through springs and can extend out of the corresponding mounting grooves 22 to overlap the top ends of the corresponding linkage battens 51.
As shown in fig. 6, in some embodiments, the support member 6 may include two support laths 61 and two support blocks 62, where the two support laths 61 are all arranged along the vertical direction of the base 3 and the lower ends of the two support laths are respectively fixed on two sides of the base 3, two second grooves 15 are respectively arranged on two sides of the lower template 1 and opposite to the two support laths 61, the two support blocks 62 are respectively elastically connected to the bottoms of the two second grooves 15 by springs and can extend out of the corresponding second grooves 15 to overlap the top ends of the corresponding support laths 61 so as to realize the detachable connection of the support laths 61 and the upper template 2.
As shown in fig. 1 and 4, in some embodiments, the device may further include two reset strips 17, where the two reset strips 17 are arranged along the vertical direction of the base 3, and the upper ends of the two reset strips are respectively fixed on two sides of the upper template 2, the two reset strips 17 are respectively arranged opposite to the two support strips 61, and the sides of the two reset strips near the upper template 2 are respectively provided with a containing groove, the two support strips 61 may respectively extend into the two containing grooves, and the reset strips 17 on two sides of the corresponding containing groove may contact with the corresponding support blocks 62 to push the support blocks 62 into the second grooves 15.
As shown in fig. 5 and 6, in some specific embodiments, the injection molding mold further comprises a core pulling 18, wherein the top surface of the lower mold plate 1 is provided with a sliding groove communicated with the mold groove 11, the sliding groove is communicated with the side surface of the lower mold plate 1, the core pulling 18 slides in the sliding groove from the direction of approaching the mold groove 11 to the direction of separating from the mold groove 11, and the injection molding cavity is a gap among the upper mold plate 2, the mold groove 11, the mold core 7 and the core pulling 18.
As shown in fig. 4 and 5, in some embodiments, the core-pulling device further includes a fixing column 19, wherein fixing holes penetrating through two ends of the core-pulling column 18 are formed in the core-pulling column, a fixing groove capable of being relatively communicated with the core-pulling column 18 is formed in the top end of the upper template 2, and the top end of the fixing column 19 is fixed at the bottom end of the upper template 2 and can penetrate through the fixing holes to be fixed in the fixing groove.
Specifically, the axis of the fixing column 19 and the axis of the fixing hole are both disposed at a preset included angle with the vertical line of the base 3.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (8)
1. The injection mold with the ejector pins capable of being ejected out secondarily and being crashproof comprises a lower mold plate (1) and an upper mold plate (2), wherein a mold groove (11) is formed in the top surface of the lower mold plate (1), the upper mold plate (2) is arranged on the lower mold plate (1) and provided with a pouring hole (21) communicated with the mold groove (11), and the injection mold is characterized by further comprising:
The injection molding machine comprises a base (3), a lower template (1), a core (7), an ejection hole (31), a needle penetrating hole (32), a core hole (12) and a needle penetrating hole (13), wherein the core (7) is fixed at the top end of the base (3), a lifting area with two through sides is arranged in the base, an ejection hole (31) communicated with the lifting area is arranged at the bottom end of the base, a needle penetrating hole (32) communicated with the lifting area is arranged at the top end of the base, the core hole (12) and the needle penetrating hole (13) which is opposite to the needle penetrating hole (32) are arranged at the bottom of the groove (11), and the core (7) penetrates through the core hole (12) to extend into the groove (11) and an injection molding cavity is defined among the core (7), the groove (11) and the upper template (2);
The ejector plate (4) is arranged in the lifting area, and the top end of the ejector plate (4) is fixedly provided with an ejector pin (8) which extends into the needle penetrating hole (32) and the needle penetrating hole (13) and can eject an injection molding finished product (10), and the ejector pin (9) which can push the ejector plate (4) to move upwards is slid in the ejector hole (31);
The lower end of the linkage piece (5) is fixed on the side wall of the ejector plate (4), the lower end of the support piece (6) is fixed on the side wall of the base (3), the upper end of the linkage piece (5) and the upper end of the support piece (6) can be connected with the lower die plate (1) in a switching way, so that the die core (7) is separated from the injection molding finished product (10), and the lower die plate (1) is connected and positioned to support the lower die plate (1) after the lower die plate (1) is separated from the linkage piece (5);
The mold core (7) comprises a first movable mold core block (71), a second movable mold core block (72) and a fixed mold core block (73), wherein the first movable mold core block (71) is arranged in the forming groove (11), the bottom end of the first movable mold core block is provided with a containing groove (711) opposite to the core hole (12), the side wall of the first movable mold core block is provided with an outlet hole communicated with the containing groove (711), the second movable mold core block (72) is arranged at the bottom of the forming groove (11) and is positioned in the containing groove (711), the side surface of the second movable mold core block (72) corresponding to the outlet hole is fixedly provided with a convex block (74), the side surface of the second movable mold core block, which is far away from the outlet hole, is a first inclined surface which is sequentially inclined from top to bottom and is close to the outlet hole direction, the bottom end of the fixed mold core block (73) is fixed at the top end of the base (3) and penetrates through the core hole (12), the side surface of the fixed mold core block (73) is sequentially inclined from bottom to top to bottom, and the second inclined surface is inclined from top to bottom, and is inclined to bottom of the second movable mold core block (71) and is connected with the second inclined surface (72) and is arranged to the second inclined surface which is inclined to be inclined downwards along with the movable mold core block (13) and is arranged downward and is contacted with the second inclined surface (72);
The support piece (6) comprises two support laths (61) and two support blocks (62), wherein the two support laths (61) are arranged along the vertical line direction of the base (3) and the lower ends of the two support laths are respectively fixed on two sides of the base (3), second grooves (15) are respectively arranged on two sides of the lower template (1), the two second grooves (15) are respectively arranged opposite to the two support laths (61), the two support blocks (62) are respectively and elastically connected to the bottoms of the two second grooves (15) through springs, and the corresponding second grooves (15) can extend out and overlap the top ends of the corresponding support laths (61) so as to realize detachable connection of the support laths (61) and the upper template (2).
2. The injection mold for the secondary ejection and anti-collision ejector pin according to claim 1, wherein the base (3) comprises a lower plate (33) and an upper plate (34), lifting grooves (331) penetrating through two sides of the lower plate (33) are formed in the top end of the lower plate (33), the upper plate (34) is arranged on the lower plate (33), the bottom end of the mold core (7) is fixed to the top end of the upper plate (34), the lifting area is the lifting grooves (331), the ejection holes (31) are formed in the lower plate (33), the needle penetrating holes (32) are formed in the upper plate (34), and the lower mold plate (1) is arranged on the upper plate (34).
3. The injection mold of the secondary ejection and anti-collision ejector pin according to claim 1, wherein the linkage piece (5) comprises two linkage laths (51) and two clamping blocks (52), the two linkage laths (51) are arranged along the vertical line direction of the base (3) and the lower ends of the two linkage laths are respectively fixed on two sides of the ejector pin plate (4), clamping grooves (511) are respectively formed in the upper ends of the two linkage laths (51), first grooves (14) are respectively formed in two sides of the lower mold plate (1), the two first grooves (14) are respectively arranged opposite to the two linkage laths (51), and the two clamping blocks (52) are respectively and elastically connected to the bottoms of the two first grooves (14) through springs and can extend out of the corresponding first grooves (14) to extend into the corresponding clamping grooves (511) so as to realize detachable connection of the linkage laths (51) and the upper mold plate (2).
4. The injection mold for the secondary ejection and anti-collision ejector pins according to claim 3, further comprising two limiting blocks (16), wherein mounting grooves (22) are formed in two sides of the upper mold plate (2), the two mounting grooves (22) are respectively arranged opposite to the two linkage laths (51), and the two limiting blocks (16) are respectively and elastically connected to bottoms of the two mounting grooves (22) through springs and can extend out of the corresponding mounting grooves (22) to be lapped on top ends of the corresponding linkage laths (51).
5. The injection mold of the secondary ejection and anti-collision ejector pin according to claim 1, further comprising two reset laths (17), wherein the two reset laths (17) are arranged along the vertical line direction of the base (3) and the upper ends of the two reset laths are respectively fixed on two sides of the upper mold plate (2), the two reset laths (17) are respectively arranged opposite to the two support laths (61) and are respectively provided with a containing groove on the side surface close to the upper mold plate (2), the two support laths (61) can respectively extend into the two containing grooves, and the reset laths (17) corresponding to the two sides of the containing grooves can be contacted with the corresponding support blocks (62) to push the support blocks (62) into the second grooves (15).
6. The injection mold of the secondary ejection and anti-collision ejector pin according to claim 1, further comprising a core pulling (18), wherein the top surface of the lower mold plate (1) is provided with a sliding groove communicated with the mold groove (11), the sliding groove is communicated with the side surface of the lower mold plate (1), the core pulling (18) slides in the sliding groove from a direction close to the mold groove (11) to a direction away from the mold groove (11), and the injection mold cavity is a gap among the upper mold plate (2), the mold groove (11), the mold core (7) and the core pulling (18).
7. The injection mold for the secondary ejection and anti-collision ejector pin according to claim 6, further comprising a fixing column (19), wherein fixing holes penetrating through two ends of the core pulling column (18) are formed in the core pulling column, a fixing groove which can be communicated with the core pulling column (18) relatively is formed in the top end of the upper mold plate (2), and the top end of the fixing column (19) is fixed to the bottom end of the upper mold plate (2) and can penetrate through the fixing holes to be fixed in the fixing groove.
8. The injection mold of the secondary ejection and anti-collision ejector pin according to claim 7, wherein the axis of the fixing column (19) and the axis of the fixing hole are arranged at a preset included angle with the vertical line of the base (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411724210.5A CN119635986B (en) | 2024-11-28 | 2024-11-28 | Injection mold of secondary ejection and anti-collision ejector pin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411724210.5A CN119635986B (en) | 2024-11-28 | 2024-11-28 | Injection mold of secondary ejection and anti-collision ejector pin |
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| CN119635986A CN119635986A (en) | 2025-03-18 |
| CN119635986B true CN119635986B (en) | 2025-11-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205889775U (en) * | 2016-07-25 | 2017-01-18 | 台州市黄岩坤泰模具有限公司 | Bumper injection mold drag hook formula secondary ejection mechanism |
| CN115592895A (en) * | 2022-09-02 | 2023-01-13 | 武汉轻工大学（Cn） | Injection mold of internal buckling plastic part |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102895431B1 (en) * | 2023-01-25 | 2025-12-04 | 주식회사 메인텍 | Injection mold device with 2-stage take-out device for easy spacing adjustment |
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- 2024-11-28 CN CN202411724210.5A patent/CN119635986B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205889775U (en) * | 2016-07-25 | 2017-01-18 | 台州市黄岩坤泰模具有限公司 | Bumper injection mold drag hook formula secondary ejection mechanism |
| CN115592895A (en) * | 2022-09-02 | 2023-01-13 | 武汉轻工大学（Cn） | Injection mold of internal buckling plastic part |
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| Publication number | Publication date |
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| CN119635986A (en) | 2025-03-18 |
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