Slide delay mold opening tripping structure and mold

Abstract

The utility model discloses a slide delay mould opening tripping structure and mould, the slide delay mould opening tripping structure is used for forming at least one air guide pipe in the mould, the air guide pipe comprises an annular reverse buckle and two horn pipes which are arranged back to back and connected, the annular reverse buckle is arranged on one horn pipe in a protruding mode, the annular reverse buckle and the two horn pipes are integrally formed, and the two horn pipes are connected with the annular reverse buckle. The slide delay mold opening tripping structure comprises a front mold and a rear mold, the front mold comprises a front mold set plate, a front mold core and at least two inclined guide columns, and the front mold core and the inclined guide columns are both installed on the front mold set plate; the rear die comprises a rear die set plate, a rear die core, two slide seats and at least two tripping assemblies matched with the two slide seats respectively, the rear die core and the two slide seats are slidably mounted on the rear die set plate, each tripping assembly comprises a limiting frame, an insert and a positioning block, the insert and the positioning block are slidably mounted on the limiting frame, the limiting frame slides on the rear die set plate through the slide seats, and the insert and the positioning block are slidably mounted on the rear die set plate. The slide seat is provided with at least one inclined hole, and the air guide pipe can be produced by using one set of die, so that the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold structures, in particular to a sliding position delayed mold opening release structure and a mold. Background Art

[0002] The air duct, also known as the bass reflex duct, is an important component of the speaker. Its function is to lead the sound waves generated at the rear of the speaker out from the inside of the speaker, thereby strengthening the sound waves and the bass. After installing the air duct, since the diameter of the air duct is smaller than the diameter of the speaker, relatively strong sound waves will rush out of the air duct. In this way, the sound waves to the front and rear of the speaker are both utilized, thereby improving the sound quality of the speaker.

[0003] However, the existing air ducts Fig.14 As shown, the upper duct and the lower duct are separated, and the two plastic parts are combined together by gluing. When the air duct is manufactured by a mold, due to the different structures of the upper duct and the lower duct, two molds are required to respectively manufacture the upper duct and the lower duct, thereby increasing the production cost of the air duct, and after gluing, it is necessary to wait for the glue to solidify, which takes time, and it is necessary to increase the process and assembly personnel for assembling the two plastic parts of the upper duct and the lower duct together. Utility Model Content

[0004] The utility model aims to provide a delayed mold opening release structure and a mold for a sliding position, so as to solve the problem that the existing air duct is split into an upper air duct and a lower air duct, and the two plastic parts of the upper air duct and the lower air duct are combined together by gluing. When the air duct is manufactured by the mold, due to the different structures of the upper air duct and the lower air duct, two molds are required to respectively manufacture the upper air duct and the lower air duct, thereby increasing the production cost of the air duct, and after gluing, it is necessary to wait for the glue to solidify, which takes time, and it is necessary to increase the process of assembling the two plastic parts of the upper air duct and the lower air duct together and the technical problems of the assemblers.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a sliding position delayed mold opening release structure, which is used to form at least one air duct in a mold, wherein the air duct comprises an annular undercut and two horn tubes arranged back to back and connected, wherein the annular undercut is convexly arranged on one of the horn tubes, and the annular undercut and the two horn tubes are integrally formed, and the sliding position delayed mold opening release structure comprises:

[0007] A front mold, comprising a front mold assembly plate, a front mold core and at least two inclined guide pillars, wherein the front mold core and the inclined guide pillars are both mounted on the front mold assembly plate;

[0008] The rear mold comprises a rear mold plate, a rear mold core, two sliding seats and at least two release components respectively matched with the two sliding seats, the rear mold core and the two sliding seats are slidably mounted on the rear mold plate, the release component comprises a limit frame, and an insert and a positioning block slidably mounted on the limit frame, the limit frame slides on the rear mold plate through the sliding seats, and the sliding seat is provided with at least one inclined hole;

[0009] When the mold is closed, each of the inclined guide pillars is respectively inserted into each of the inclined holes, the positioning block is clamped with the rear mold plate, and the front mold core, the rear mold core, the two sliding seats and each of the inserts enclose at least one product cavity for molding the air duct; when the mold is opened, each of the inclined guide pillars slides relative to each of the inclined holes and drives the two sliding seats to move in the opposite direction along the first direction, and the sliding seat simultaneously drives the insert thereon to move along the second direction toward the side close to the rear mold core to disengage the annular undercut, the positioning block is separated from the rear mold plate, and the inclined guide pillar drives the sliding seat and the release assembly to move along the first direction toward the side away from the rear mold core, and the first direction is perpendicular to the second direction.

[0010] The lock member is a pair of locks, each of which has a first end that is adapted to move relative to the first end of the lock member and a second end that is adapted to move relative to the first end of the lock member.

[0011] Further, the insert includes an insert that cooperates with the slide groove and a support rod protruding from the insert, the insert is slidably installed in the slide groove, the support rod is inserted into the guide hole and can be slidably connected with the limit frame along the second direction, and the support rod and the limit frame can slide together in the guide hole along the first direction, the insert is provided with an arc groove for cooperating with part of the trumpet tube and a glue groove for cooperating with the annular undercut, the arc groove is located at one end of the insert close to the trumpet tube, and the glue groove is located at one end of the insert away from the rear mold core, and when the sliding seat drives the insert to move along the second direction toward the side close to the rear mold core, the annular undercut disengages from the glue groove.

[0012] Further, the limit frame includes a first support plate and a second support plate vertically connected to the first support plate, the first support plate and the second support plate form an "L" shape, the first support plate is located in the guide hole, the second support plate is located in the concave cavity, the first support plate is recessed with a receiving groove, the insert is inserted into the receiving groove, the insert can run in the receiving groove along the second direction, and the positioning block is slidably installed on the second support plate and can be clamped with the rear module plate.

[0013] Furthermore, the release assembly also includes a fastener, and the limit frame is also provided with a first through hole and a receiving hole, the first through hole penetrates the second support plate along the second direction, and the receiving hole penetrates from the inner wall of the first through hole along the first direction to the outer wall of the second support plate, the rear mold plate is provided with at least one first positioning groove, one end of the positioning block is slidably installed in the first through hole, and the other end can be inserted in the first positioning groove, one end of the fastener is fixedly connected to the positioning block, and the other end is located in the receiving hole, and the fastener can slide in the receiving hole along the second direction, and when the sliding seat drives the insert to run along the second direction toward the side close to the rear mold core to disengage the annular undercut, the first through hole is directly connected to the guide hole, and the positioning block can be separated from the first positioning groove.

[0014] Furthermore, the rear mold also includes at least two limit plates, the sliding seat is provided with at least one second through hole connected to the concave cavity along the third direction, the second support plate is provided with a strip-shaped limit groove along the first direction, one end of the limit plate is fixed on the sliding seat, and the other end passes through the second through hole and is slidably installed in the limit groove, and the first direction and the second direction are both perpendicular to the third direction.

[0015] Furthermore, the rear mold also includes at least two clamping components, which include an elastic member, a fixed seat, a top pressing portion and a sealing plate. The rear mold assembly is also provided with at least two embedding grooves, and the two sliding seats are provided with at least one second positioning groove. The fixed seat and the sealing plate are both installed in the embedding grooves. The fixed seat and the sealing plate are combined to form a accommodating bin. The fixed seat is penetrated by a third through-hole connected to the accommodating bin. The elastic member is located in the accommodating bin. The top pressing portion is "T"-shaped, and one end of the top pressing portion is located in the accommodating bin and presses against the elastic member, and the other end passes through the third through-hole. After the mold is opened, the top pressing portion is plugged into the second positioning groove.

[0016] Further, the rear mold plate includes a bottom plate, a lifting plate group, a mother template, two square irons and a plurality of ejector pins, one end of the square iron is connected to the bottom plate, and the other end is connected to the mother template, the bottom plate, the mother template and the two square irons enclose a through cavity, the lifting plate group is located in the through cavity, the mother template is penetrated with a plurality of fourth through holes, the rear mold core includes a rear core plate, at least one rear forming column and at least one push plate for ejecting the air duct after forming, the rear core plate and the rear forming column are both fixed to the mother template, the rear core plate is provided with at least one through hole, the rear forming column is located in the through hole, the push plate is annular, the push plate is sleeved on the rear forming column and is located in the through hole, one end of the ejector pin is connected to the lifting plate group, and the other end is connected to the corresponding push plate after passing through the fourth through hole, and when the mold is closed, the rear forming column abuts against the front mold core.

[0017] Furthermore, the front mold assembly includes a panel and a male mold plate connected in sequence, the front mold core includes a front core plate and at least one front forming column protruding from the front core plate, the front core plate and the inclined guide column are both installed on the male mold plate, and when the mold is closed, the front forming column abuts against the rear mold core.

[0018] The utility model also provides a mold, comprising the sliding position delayed mold opening release structure as described above.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In order to reduce the cost of the entire mold machine, the utility model carries out an integrated design for the air duct structure, the annular undercut and the two horn tubes are integrally formed and arranged, and no gluing is required. When the mold is closed, the inclined guide pillars are respectively inserted into the inclined holes, the positioning block is clamped with the rear mold plate, and the front mold core, the rear mold core, the two sliding seats and the inserts are enclosed to form at least one product cavity for molding the air duct; when the mold is opened, the inclined guide pillars slide relative to the inclined holes respectively and drive the two sliding seats to move in the opposite direction along the first direction, and the sliding seat simultaneously drives the insert thereon to move in the second direction toward the side close to the rear mold core to disengage the annular undercut, the limit frame and the positioning block are both kept stationary relative to the rear mold plate, and the inclined guide pillars respectively drive the two sliding seats to continue to move in the opposite direction along the first direction. At this time, the positioning block is separated from the rear mold plate, and the inclined guide pillars drive the sliding seat and the release assembly to move in the first direction toward the side away from the rear mold core, so as to facilitate the removal of the formed air duct. The air duct can be produced with one set of molds, which can save one set of molds and reduce the production cost of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the air guide duct provided in the embodiment of the utility model being located in the mold;

[0022] Figure 2 for Figure 1 A cross-sectional view of

[0023] Figure 3 for Figure 1 Exploded diagram of

[0024] Figure 4 A schematic structural diagram of a front mold provided in an embodiment of the utility model.

[0025] Figure 5 A schematic diagram of the structure of the rear mold provided by an embodiment of the utility model;

[0026] Figure 6 for Figure 5 Exploded diagram of

[0027] Figure 7 The structure of the insert provided in the embodiment of the utility model is schematically shown Figure 1 ;

[0028] Figure 8 The structure of the insert provided in the embodiment of the utility model is schematically shown Figure 2 ;

[0029] Fig. 9 The structure of the sliding seat provided by the embodiment of the utility model is shown in FIG. Figure 1 ;

[0030] Fig.10 The structure of the sliding seat provided by the embodiment of the utility model is shown in FIG. Figure 2;

[0031] Fig.11 A schematic diagram of the structure of the release assembly provided by the embodiment of the utility model after removing the insert;

[0032] Fig.12 for Fig.11 Exploded diagram of

[0033] Fig.13 A schematic diagram of the structure of the rear mold provided by the embodiment of the utility model after the slider seat and the release assembly are removed;

[0034] Fig.14 A schematic diagram of the structure of the air duct provided in an embodiment of the utility model.

[0035] In the figure:

[0036] 10. air duct; 11. annular undercut; 12. horn tube; 20. front mold; 21. front mold assembly plate; 211. panel; 212. male mold plate; 22. front mold core; 221. front core plate; 222. front forming column; 23. oblique guide column; 30. rear mold; 31. product cavity; 32. limit plate; 33. locking piece; 40. rear mold assembly plate; 41. first positioning groove; 42. bottom plate; 43. lifting plate assembly; 44. female mold plate; 45. square iron; 46. ejector pin; 47. through cavity; 50. rear mold core; 51. rear core plate; 52. rear forming column; 53. push plate; 60. sliding seat; 61. oblique hole; 62 , slide groove; 63, guide hole; 64, concave cavity; 65, forming groove; 66, stop groove; 67, second through hole; 68, second positioning groove; 70, release assembly; 71, insert; 711, insert block; 712, support rod; 713, arc groove; 714, glue position groove; 72, limit frame; 721, first support plate; 7211, receiving groove; 722, second support plate; 7221, limit groove; 723, anti-drop plate; 724, first through hole; 725, storage hole; 73, positioning block; 74, fastener; 75, stopper; 80, snap-on assembly; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0038] See also Figures 1 to 6 ,as well as Fig.14As shown, an embodiment of the utility model discloses a slide delayed mold opening release structure, which is applied to plastic molds. The slide delayed mold opening release structure is used to form at least one air duct 10 in the mold. The air duct 10 includes an annular undercut 11 and two trumpet tubes 12. The two trumpet tubes 12 are arranged back to back and connected. The vertical cross-section shape of the trumpet tube 12 is an "eight" shape. The annular undercut 11 is convexly provided on one of the trumpet tubes 12. The annular undercut 11 and the two trumpet tubes 12 are integrally formed. The air duct 10 adopts an integral molding arrangement. The air duct 10 does not require gluing, which saves processes and assembly personnel.

[0039] The delayed mold opening and release structure of the sliding position includes a front mold 20 and a rear mold 30, wherein the front mold 20 is a fixed mold and the rear mold 30 is a movable mold. The front mold 20 includes a front mold assembly plate 21, a front mold core 22 and at least two inclined guide pillars 23, and the front mold core 22 and the inclined guide pillars 23 are both installed on one surface of the front mold assembly plate 21; the rear mold 30 includes a rear mold assembly plate 40, a rear mold core 50, two sliding positions seats 60 and at least two release components 70 respectively matched with the two sliding positions seats 60, and the rear mold core 50 and the two sliding positions seats 60 are both slidably installed on one surface of the rear mold assembly plate 40, wherein the sliding position seat 60 can slide on the rear mold assembly plate 40 along a first direction X, the rear mold core 50 can slide on the rear mold assembly plate 40 along a second direction Y, and the release component 70 can slide on the rear mold assembly plate 40 through the sliding position seat 60.

[0040] The release assembly 70 includes an insert 71, a limit frame 72 and a positioning block 73. The insert 71 and the positioning block 73 are both slidably installed on the limit frame 72. The limit frame 72 slides on the rear module plate 40 through the sliding seat 60. The sliding seat 60 is provided with at least one inclined hole 61. The number of inclined guide columns 23 and inclined holes 61 is four, and each sliding seat 60 is provided with two inclined holes 61.

[0041] Under the action of the injection molding machine, when the mold is closed, the rear mold plate 40 is abutted against the front mold plate 21, and each inclined guide column 23 is respectively inserted into each inclined hole 61, and the positioning block 73 is clamped with the rear mold plate 40. The front mold core 22, the rear mold core 50, the two slider seats 60 and the inserts 71 enclose at least one product cavity 31 for molding the air duct 10. The number of the release components 70 in this embodiment is four, and two release components 70 are installed on each slider seat 60. The enclosed product cavity 31 is two, and the mold can mold two air ducts 10 at one time; when the mold is opened, each inclined guide column 23 slides relative to each inclined hole 61 and drives the two slider seats 60 to run in the opposite direction along the first direction X, and each inclined guide column 23 will move the two slider seats of the rear mold 30. The seat 60 is pushed away, and the slider seat 60 drives the insert 71 thereon to move along the second direction Y toward the side close to the rear mold core 50 to disengage the annular undercut 11. At this time, the limit frame 72 and the positioning block 73 remain stationary relative to the rear mold plate 40, and each inclined guide column 23 drives the two slider seats 60 to continue to move in the opposite direction along the first direction X. The positioning block 73 is separated from the rear mold plate 40, and the inclined guide column 23 drives the slider seat 60 and the release assembly 70 to move along the first direction X toward the side away from the rear mold core 50, so as to facilitate the removal of the formed air duct 10, realize the mold opening actions in two different directions, and use one set of molds to produce the air duct 10, which can save one set of molds and reduce the production cost of the air duct 10. The first direction X is perpendicular to the second direction Y, and the first direction X is Figure 1 The middle direction is the horizontal setting direction, and the second direction Y is the vertical setting direction.

[0042] Please read further Figures 1 to 3 ,as well as Figures 6 to 14The slider seat 60 is also provided with at least one slide groove 62, at least one guide hole 63 and at least one concave cavity 64. The slide groove 62 is tilted at the end of the slider seat 60 away from the rear module plate 40. The slide groove 62 extends from the side of the slider seat 60 close to the air duct 10 toward the middle of the slider seat 60. Of course, the slide groove 62 can also penetrate the entire slider seat 60 along the first direction X. The distance between the bottom wall of the slide groove 62 and the rear module plate 40 gradually increases from the end close to the air duct 10 toward the end away from the air duct 10. The inclination angle of the slide groove 62 is 20 degrees. The concave cavity 64 is provided at the end of the slider seat 60 away from the front module plate 21. The guide hole 63 extends from the bottom wall of the slide groove 62 to the bottom wall of the concave cavity 64. The slide groove 62 and the guide hole There are four blocks 63 and four recessed cavities 64. One end of the insert 71 is slidably mounted in the slide groove 62, and the other end is inserted into the guide hole 63. One end of the limit frame 72 is mounted in the guide hole 63 and slidably connected with the insert 71, and the other end is slidably mounted in the recessed cavity 64 and abuts against the rear module plate 40. The insert 71 and the limit frame 72 can slide in the guide hole 63 along the first direction X together. One end of the positioning block 73 is located in the recessed cavity 64 and slidably connected with the limit frame 72 along the second direction Y, and the other end can be snapped with the rear module plate 40 to prevent the limit frame 72 from moving during the initial mold opening. The sliding seat 60 is also provided with a forming groove 65 for cooperating with a portion of the outer wall of the air duct 10, and the forming groove 65 is an arc structure.

[0043] In this embodiment, the insert 71 includes an insert 711 that matches the slide groove 62 and a support rod 712 that protrudes from the bottom of the insert 711. The bottom of the insert 711 is also inclined. The insert 711 is slidably installed in the slide groove 62. The support rod 712 is inserted into the guide hole 63 and can be slidably connected with the limit frame 72 along the second direction Y, and the support rod 712 and the limit frame 72 can slide together in the guide hole 63 along the first direction X. The insert 71 is provided with an arc groove 713 for matching with a part of the trumpet tube 12 and a glue groove 714 for matching with the annular undercut 11. The arc groove 713 is located at one end of the insert 711 close to the trumpet tube 12, so as to facilitate the molding of a part of the trumpet tube 12. The arc groove 713 can be connected to the molding groove 65, and the glue groove 714 is located at the end of the insert 711 away from the rear mold core 50, so as to facilitate the molding of a part of the annular undercut 11. When the slider 60 drives the insert 71 to move along the second direction Y toward the side close to the rear mold core 50, the annular undercut 11 is separated from the glue groove 714. At this time, the limit frame 72 and the positioning block 73 remain stationary relative to the rear mold plate 40, and then each inclined guide column 23 drives the two sliders 60 to continue to move in the opposite direction along the first direction X. The positioning block 73 is separated from the rear mold plate 40, and the inclined guide column 23 will drive the slider 60 and the release assembly 70 to move along the first direction X toward the side away from the rear mold core 50, so as to facilitate the removal of the formed air duct 10.

[0044] The limiting frame 72 includes a first support plate 721 and a second support plate 722 vertically connected to the first support plate 721, the first support plate 721 and the second support plate 722 form an "L" shape, the first support plate 721 is located in the guide hole 63, the second support plate 722 is located in the concave cavity 64, the first support plate 721 is recessed with a receiving groove 7211, and the support rod 712 in the insert 71 is inserted into the receiving groove 7211. When each inclined guide column 23 drives the two sliding seats 60 to move in the opposite direction along the first direction X, the insert 71 will not move along the first direction X with the sliding seat 60 due to the action of the positioning block 73. Under the action of the slide groove 62, the insert 71 can move in the receiving groove 7211 along the second direction Y. At this time, the positioning block 73 is slidably installed on the second support plate 722 and can be clamped with the rear module plate 40.

[0045] In some embodiments, the limit frame 72 also includes an anti-slip plate 723. The anti-slip plate 723 and the second support plate 722 are arranged on both sides of the first support plate 721 back to back. The bottom wall of the sliding seat 60 is in a stepped state. An escape space is formed between the bottom wall of the sliding seat 60 and the rear module plate 40. The anti-slip plate 723 can be inserted into the escape space to prevent the limit frame 72 from tilting during operation.

[0046] The trip assembly 70 also includes a fastener 74, and the limit frame 72 is further provided with a first through hole 724 and a receiving hole 725. The first through hole 724 penetrates the second support plate 722 along the second direction Y, and the receiving hole 725 penetrates from the inner wall of the first through hole 724 along the first direction X to the outer wall of the second support plate 722. At least one first positioning groove 41 is provided on the top of the rear module plate 40. The first positioning groove 41 is a "V"-shaped structure. One end of the positioning block 73 is slidably installed in the first through hole 724, and the other end can be inserted into the first positioning groove 41. One end of the fastener 74 is fixedly connected to the positioning block 73 and the other end is located in the receiving hole 725. The fastener 74 can slide in the receiving hole 725 along the second direction Y to prevent the positioning block 73 from disengaging from the first through hole 724. When the slider 60 drives the insert 71 to move along the second direction Y toward the side close to the rear mold core 50 to disengage the annular undercut 11, the slider 60 runs so that the first through hole 724 is directly connected to the guide hole 63. Under the action of external force, the positioning block 73 can disengage from the first positioning groove 41. The fastener 74 is a screw.

[0047] The release assembly 70 also includes a stopper 75, which is fixed to the bottom of the insert 711. The sliding seat 60 is also provided with a stopper groove 66 that cooperates with the stopper 75. The stopper groove 66 is provided on the inner wall of the top end of the guide hole 63. After the mold is opened, the stopper 75 will run into the stopper groove 66 and abut against its inner wall to further limit the moving position of the insert 71. The stopper 75 is a screw.

[0048] The rear mold 30 also includes at least two limiting plates 32 and a plurality of locking members 33. The slider seat 60 is provided with at least one second through hole 67 connected to the concave cavity 64 along the third direction Z. The number of the locking members 33 is eight, and the number of the second through holes 67 is four. The second support plate 722 is provided with a strip-shaped limiting groove 7221 along the first direction X. One end of the limiting plate 32 is fixed to the slider seat 60 through two locking members 33, and the other end passes through the second through hole 67 and is slidably installed in the limiting groove 7221 to further limit the sliding accuracy of the limiting frame 72 to prevent the limiting frame 72 from tilting. The locking member 33 is a screw. The first direction X and the second direction Y are both perpendicular to the third direction Z. The third direction Z is Figure 1 Orientation in portrait settings.

[0049] The rear mold 30 also includes at least two clamping assemblies 80, which include an elastic member, a fixed seat, a top pressure portion and a sealing plate. The rear mold assembly plate 40 is also provided with at least two embedded grooves. The two sliding seats 60 are each provided with at least one second positioning groove 68. The number of the clamping assemblies 80, the embedded groove and the second positioning groove 68 is four. The fixed seat and the sealing plate are both installed in the embedded groove. The sealing plate is located on the bottom wall of the embedded groove. The fixed seat and the sealing plate are enclosed to form a accommodating bin. The fixed seat is penetrated with a third through hole connected to the accommodating bin. The elastic member is located in the accommodating bin. In the receiving bin, the elastic member is a spring, and the pressing portion is "T"-shaped. One end of the pressing portion is located in the receiving bin and presses against the elastic member, and the other end passes through the third through-hole. When the mold is closed, the pressing portion is limited by the slider seat 60 and pressed against the third through-hole. After the mold is opened, the pressing portion is inserted into the second positioning groove 68 to prevent the slider seat 60 from moving after the mold is opened, so as to prevent the inclined guide column 23 from being inserted into the inclined hole 61 on the slider seat 60 when the mold is closed. In the process of closing the mold, brute force is applied to the slider seat 60 to separate the pressing portion from the second positioning groove 68.

[0050] Please continue reading Figures 1 to 6 , Fig. 9 as well as Fig.13In this embodiment, the rear mold plate 40 includes a bottom plate 42, a lifting plate group 43, a mother template 44, two square irons 45 and a plurality of ejector pins 46. One end of the square iron 45 is connected to the bottom plate 42 and the other end is connected to the mother template 44. The bottom plate 42, the mother template 44 and the two square irons 45 enclose a through cavity 47. The lifting plate group 43 is located in the through cavity 47. The lifting plate group 43 is composed of a plurality of ejector plates connected in sequence. The mother template 44 is penetrated with a plurality of fourth through holes. The rear mold core 50 includes a rear core plate 51, at least one rear forming column 52 and at least one push plate 53. The number of the rear forming column 52 and the push plate 53 is There are two of each. The rear core plate 51 and the rear forming column 52 are both fixed on the mother template 44. The rear core plate 51 is provided with at least one through hole, and the number of through holes is two. The rear forming column 52 is located in the through hole. The push plate 53 is annular. The push plate 53 is sleeved on the rear forming column 52 and is located in the through hole. One end of the ejector pin 46 is connected to the ejection plate group 43, and the other end passes through the fourth through hole and is connected to the corresponding push plate 53 to eject the air duct 10 after molding, complete the product demoulding, and facilitate manual removal of the air duct 10 from the mold. When the mold is closed, the rear forming column 52 abuts against the front mold core 22, and the power of the ejection plate group 43 is provided by the injection molding machine.

[0051] The front mold assembly plate 21 includes a panel 211 and a male mold plate 212 connected in sequence. The front mold core 22 includes a front core plate 221 and at least one front forming column 222 protruding from the front core plate 221. The front core plate 221 and the inclined guide column 23 are both installed on the male mold plate 212. When the mold is closed, the front forming column 222 abuts against the rear mold core 50 so that the air duct 10 can be formed.

[0052] In this embodiment, the total movement stroke of the slider 60 is 65 mm. During the initial movement of the slider 60 of 30.5 mm, the insert 71 thereon will not move with the slider 60 due to the limiting effect of the positioning block 73, but will move downward by 11.1 mm due to the slide groove 62 on the slider 60, that is, it will move 11.1 mm along the second direction Y toward the side of the rear mold core 50. When the insert 71 moves downward by 11.1 mm, it will be disengaged from the annular undercut 11 of the air duct 10 product; then, the slider 6 0 continues to move the remaining 34.5 mm, the slider 60 will drive the insert 71, the limit frame 72 and the positioning block 73 to move 34.5 mm together. At this time, the annular undercut 11 of the air duct 10 product has also been completely disengaged, and the slider 60 and the insert 71 have also simultaneously disengaged from the position of the push plate 53, so that when the push plate 53 is ejected by the ejector pin 46, it will not hit the slider 60 and the insert 71; finally, through the force of the injection molding machine, the push plate 53 will push the air duct 10 product out by 60 mm, that is, the air duct 10 product can be taken out.

[0053] The utility model also discloses a mold, comprising the sliding position delayed mold opening release structure as described above.

[0054] Working principle of the sliding position delayed mold release structure:

[0055] When the mold is closed, the rear mold 30 moves toward the front mold 20, and the inclined guide pillars 23 are respectively inserted into the inclined holes 61, driving the two sliders 60 and the four release components 70 to move toward each other and abut against each other. The positioning block 73 is clamped with the rear mold assembly plate 40. The front mold core 22, the rear mold core 50, the two sliders 60 and the inserts 71 enclose two product cavities 31 for molding the air duct 10 respectively. The mold can mold two air ducts 10 at one time.

[0056] When the mold is opened, each inclined guide column 23 slides relative to each inclined hole 61 and drives the two sliding seats 60 to run in the opposite direction along the first direction X. The sliding seat 60 simultaneously drives the insert 71 thereon to run along the second direction Y toward the side close to the rear mold core 50, so as to form an annular undercut 11 on the air duct 10. The limit frame 72 and the positioning block 73 remain stationary relative to the rear mold plate 40. Then, each inclined guide column 23 drives the two sliding seats 60 to continue to run in the opposite direction along the first direction X. The sliding seat 60 makes the first through hole 724 directly connected with the guide hole 63 through running. Under the action of external force, the positioning block 73 is disengaged from the clamping connection with the rear mold plate 40. The inclined guide column 23 drives the sliding seat 60 and the release assembly 70 to run together along the first direction X toward the side away from the rear mold core 50 until the clamping assembly 80 is clamped with the sliding seat 60, and finally the formed air duct 10 is taken out.

[0057] The beneficial effects of the slide delay mold release structure:

[0058] 1. One less set of molds can be opened;

[0059] 2. It saves the time and manpower of traditional upper and lower duct assembly and gluing;

[0060] 3. The unit price of the product saves 1 / 3 of the cost compared with the original plan.

[0061] In summary, in order to reduce the cost of the entire mold machine, the utility model has integrated the design of the structure of the air duct 10, the annular undercut 11 and the two horn tubes 12 are integrally formed, and no gluing is required. When the mold is closed, each inclined guide column 23 is respectively inserted into each inclined hole 61, and the positioning block 73 is clamped with the rear mold assembly plate 40. The front mold core 22, the rear mold core 50, the two slide seats 60 and the inserts 71 are enclosed to form at least one product cavity 31 for molding the air duct 10; when the mold is opened, each inclined guide column 23 slides relative to each inclined hole 61 and drives the two slide seats 60 to run in the opposite direction along the first direction X, and the slide seats 60 move in the same direction. At the same time, the insert 71 thereon is driven to move along the second direction Y toward the side close to the rear mold core 50 to disengage the annular undercut 11. The limit frame 72 and the positioning block 73 remain stationary relative to the rear mold plate 40. Each inclined guide column 23 drives the two sliding seats 60 to continue to move in the opposite direction along the first direction X. At this time, the positioning block 73 is separated from the rear mold plate 40, and the inclined guide column 23 drives the sliding seat 60 and the release assembly 70 to move along the first direction X toward the side away from the rear mold core 50, so as to facilitate the removal of the formed air duct 10. The air duct 10 can be produced with one set of molds, which can save one set of molds and reduce the production cost of the air duct 10.

[0062] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A delayed mold release structure for a slide position, used to form at least one air duct in a mold, characterized in that: The air guide pipe includes an annular undercut and two horn tubes that are arranged back to back and connected, the annular undercut is convexly arranged on one of the horn tubes, the annular undercut and the two horn tubes are integrally formed, and the sliding position delayed mold release structure includes: A front mold, comprising a front mold assembly plate, a front mold core and at least two inclined guide pillars, wherein the front mold core and the inclined guide pillars are both mounted on the front mold assembly plate; The rear mold comprises a rear mold plate, a rear mold core, two sliding seats and at least two release components respectively matched with the two sliding seats, the rear mold core and the two sliding seats are slidably mounted on the rear mold plate, the release component comprises a limit frame, and an insert and a positioning block slidably mounted on the limit frame, the limit frame slides on the rear mold plate through the sliding seats, and the sliding seat is provided with at least one inclined hole; When the mold is closed, each of the inclined guide pillars is respectively inserted into each of the inclined holes, the positioning block is clamped with the rear mold plate, and the front mold core, the rear mold core, the two sliding seats and each of the inserts enclose at least one product cavity for molding the air duct; when the mold is opened, each of the inclined guide pillars slides relative to each of the inclined holes and drives the two sliding seats to move in the opposite direction along the first direction, and the sliding seat simultaneously drives the insert thereon to move along the second direction toward the side close to the rear mold core to disengage the annular undercut, the positioning block is separated from the rear mold plate, and the inclined guide pillar drives the sliding seat and the release assembly to move along the first direction toward the side away from the rear mold core, and the first direction is perpendicular to the second direction.

2. The delayed mold opening release structure according to claim 1 is characterized in that: The sliding seat is also provided with at least one slide groove, at least one guide hole and at least one concave cavity, the slide groove is inclinedly arranged at one end of the sliding seat away from the rear module plate, and the distance between the bottom wall of the slide groove and the rear module plate gradually increases from one end close to the air guide pipe to the end away from the air guide pipe, and the concave cavity is arranged at one end of the sliding seat away from the front module plate, and the guide hole extends from the bottom wall of the slide groove to the bottom wall of the concave cavity, one end of the insert is slidably installed in the slide groove, and the other end is inserted into the guide hole, one end of the limit frame is installed in the guide hole and slidably connected to the insert, and the other end is slidably installed in the concave cavity and abuts against the rear module plate, the insert and the limit frame can slide in the guide hole together along the first direction, one end of the positioning block is located in the concave cavity and slidably connected to the limit frame, and the other end can be clamped with the rear module plate.

3. The delayed mold opening release structure according to claim 2 is characterized in that: The insert includes an insert matching the slide groove and a support rod protruding from the insert, the insert being slidably installed in the slide groove, the support rod being inserted into the guide hole and being slidably connected with the limit frame along the second direction, and the support rod and the limit frame being able to slide together in the guide hole along the first direction, the insert is provided with an arc groove for matching with part of the trumpet tube and a glue groove for matching with the annular undercut, the arc groove is located at one end of the insert close to the trumpet tube, and the glue groove is located at one end of the insert away from the rear mold core, and when the sliding seat drives the insert to move along the second direction toward the side close to the rear mold core, the annular undercut disengages from the glue groove.

4. The delayed mold opening release structure according to claim 2 is characterized in that: The limiting frame includes a first support plate and a second support plate vertically connected to the first support plate, the first support plate and the second support plate form an "L" shape, the first support plate is located in the guide hole, the second support plate is located in the concave cavity, the first support plate is concavely provided with a receiving groove, the insert is inserted into the receiving groove, the insert can run in the receiving groove along the second direction, the positioning block is slidably installed on the second support plate and can be clamped with the rear module plate.

5. The delayed mold opening release structure according to claim 4 is characterized in that: The release assembly also includes a fastener, and the limit frame is also provided with a first through hole and a receiving hole, the first through hole penetrates the second support plate along the second direction, and the receiving hole penetrates from the inner wall of the first through hole along the first direction to the outer wall of the second support plate, the rear mold plate is provided with at least one first positioning groove, one end of the positioning block is slidably installed in the first through hole, and the other end can be inserted in the first positioning groove, one end of the fastener is fixedly connected to the positioning block, and the other end is located in the receiving hole, and the fastener can slide in the receiving hole along the second direction, when the sliding seat drives the insert to move along the second direction toward the side close to the rear mold core to disengage the annular undercut, the first through hole is directly connected to the guide hole, and the positioning block can be separated from the first positioning groove.

6. The delayed mold opening release structure according to claim 4 is characterized in that: The rear mold also includes at least two limit plates, the sliding seat is provided with at least one second through hole connected to the concave cavity along the third direction, the second support plate is provided with a strip-shaped limit groove along the first direction, one end of the limit plate is fixed on the sliding seat, and the other end passes through the second through hole and is slidably installed in the limit groove, and the first direction and the second direction are both perpendicular to the third direction.

7. The delayed mold opening release structure according to claim 1, characterized in that: The rear mold also includes at least two clamping components, which include an elastic member, a fixed seat, a top pressing portion and a sealing plate. The rear mold assembly is also provided with at least two embedding grooves, and the two sliding seats are provided with at least one second positioning groove. The fixed seat and the sealing plate are both installed in the embedding grooves. The fixed seat and the sealing plate are combined to form a accommodating bin. The fixed seat is penetrated by a third through-hole connected to the accommodating bin. The elastic member is located in the accommodating bin. The top pressing portion is "T" shaped. One end of the top pressing portion is located in the accommodating bin and presses against the elastic member, and the other end passes through the third through-hole. After the mold is opened, the top pressing portion is plugged into the second positioning groove.

8. The delayed mold opening release structure according to claim 1, characterized in that: The rear mold assembly plate includes a bottom plate, a lifting plate group, a mother template, two square irons and a plurality of ejector pins, one end of the square iron is connected to the bottom plate, and the other end is connected to the mother template, the bottom plate, the mother template and the two square irons enclose a through cavity, the lifting plate group is located in the through cavity, and the mother template is penetrated with a plurality of fourth through holes, the rear mold core includes a rear core plate, at least one rear forming column and at least one push plate for ejecting the air duct after forming, the rear core plate and the rear forming column are both fixed to the mother template, the rear core plate is provided with at least one through hole, the rear forming column is located in the through hole, the push plate is annular, the push plate is sleeved on the rear forming column and is located in the through hole, one end of the ejector pin is connected to the lifting plate group, and the other end is connected to the corresponding push plate after passing through the fourth through hole, and when the mold is closed, the rear forming column abuts against the front mold core.

9. The delayed mold opening release structure according to claim 1, characterized in that: The front mold assembly plate includes a panel and a male mold plate connected in sequence, the front mold core includes a front core plate and at least one front forming column protruding from the front core plate, the front core plate and the inclined guide column are both installed on the male mold plate, and when the mold is closed, the front forming column abuts against the rear mold core.

10. A mold, characterized in that: It comprises the sliding position delayed mold opening release structure as described in any one of claims 1 to 9.

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