Multi-section type demolding support mold

Abstract

The invention discloses a bracket mold with a multi-section demolding function. The bracket mold comprises an upper mold assembly, a lower mold assembly, a first sliding demolding mechanism and a second sliding demolding mechanism, the upper die assembly comprises an upper die fixing plate and an upper die plate, the upper die plate is movably arranged on the upper die fixing plate, an upper die core is arranged on the upper die plate, and a first inclined guide hole and a straight guide hole are formed in the upper die core; the lower mold assembly comprises a lower mold plate, a lower mold core is arranged on the lower mold plate, and the upper mold core and the lower mold core form a support injection molding cavity; the first sliding demolding mechanism comprises a connecting column, a first sliding block and a first mold core, the upper end of the connecting column is fixed to an upper mold fixing plate, an inclined guide rail is arranged at the lower end of the connecting column, the first sliding block is slidably arranged on the upper mold core in the length direction of the upper mold core, a first inclined guide groove is formed in the first sliding block, and a second inclined guide groove is formed in the second sliding block. The inclined guide rail is in sliding fit with the first inclined guide groove, the end of the first mold core is arranged on the first sliding block, and the first mold core is arranged in the straight guide hole in a sliding mode and extends into the support injection molding cavity.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to a bracket mold with multi-stage demoulding. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. Injection molds usually include an upper mold and a lower mold. When the upper mold and the lower mold are buckled, the molten material is injected into the cavity through the gate. When the mold is opened, the upper mold and the lower mold are separated to take out the plastic product.

[0003] A sweeping machine can be widely used in shopping malls, stations, workshops, airports and other places. The sweeping machine is provided with a bracket for loading parts such as a dust collection component and a sewage tank. The bracket is made of plastic and can be mass-produced by using an injection mold. However, the structure of the bracket is very complicated. Both ends of the bracket have receiving grooves for installing the dust collection component and the sewage tank respectively. The inner wall / outer wall of the receiving groove has various holes, grooves, protrusions and other complex structures, and both ends of the bracket are connected to the outside. Some structures can be formed by a side core pulling structure. However, a protrusion or groove-like structure on the inner wall of the receiving groove cannot be formed by a side core pulling mechanism. If an upper mold is used to directly mold the structure on the inner wall of the receiving groove, the molded product will be stuck with the upper mold, making it impossible to demold the molded product smoothly. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a bracket mold with multi-stage demoulding to solve the technical problems in the prior art that the bracket of the sweeping machine is difficult to form and inconvenient to demould.

[0005] The present invention is implemented by the following technical scheme: a bracket mold with multi-stage demoulding, comprising an upper mold assembly, a lower mold assembly, a first sliding demoulding mechanism, and a second sliding demoulding mechanism;

[0006] The upper mold assembly comprises an upper mold fixing plate and an upper mold plate, wherein the upper mold plate is movably arranged on the upper mold fixing plate, an upper mold core is arranged on the upper mold core, and a first oblique guide hole and a straight guide hole are arranged on the upper mold core;

[0007] The lower mold assembly comprises a lower mold plate, a lower mold core is arranged on the lower mold plate, and the upper mold core and the lower mold core form a bracket injection cavity;

[0008] The first sliding demoulding mechanism comprises a connecting column, a first slider and a first core, the upper end of the connecting column is fixed to the upper mold fixing plate, the lower end of the connecting column is provided with an inclined guide rail, the first slider is slidably arranged on the upper mold core along the length direction of the upper mold core, the first slider is provided with a first inclined guide groove, the inclined guide rail is slidably matched with the first inclined guide groove, the end of the first core is arranged on the first slider, and the first core is slidably arranged in the straight guide hole and extends into the injection cavity of the bracket;

[0009] The second sliding demolding mechanism includes a second slider and a second core, the second slider is arranged in the upper template, and the second slider can be slidably arranged along the height direction of the upper template, the upper end of the second core is connected to the second slider, and the second core can be slidably arranged along the length direction of the upper template, and the second core can be slidably arranged in the first inclined guide hole and extend into the injection cavity of the bracket.

[0010] In a possible embodiment, a first slide groove is provided on the upper mold core, the first slider is arranged in the first slide groove, first guide rails are provided on both sides of the lower end of the first slider, a first guide groove is provided at the lower end of the inner wall of the first slide groove, and the first guide rail can be slidably arranged in the first guide groove.

[0011] In a possible embodiment, a first inclined surface is provided at the lower end of the connecting column, a second inclined surface is provided at one end of the first sliding block, the inclined guide rail is provided on the first inclined surface, and the first inclined guide groove is provided on the second inclined surface. After the inclined guide rail cooperates with the first inclined guide groove, the first inclined surface and the second inclined surface are adapted to fit together.

[0012] In a possible implementation manner, a second guide rail is disposed at the upper end of the second core, a second guide groove is disposed in the second sliding block, and the second guide rail can be slidably disposed in the second guide groove.

[0013] In a possible embodiment, the second sliding block includes an upper sliding block, a lower sliding block and a limit block, the upper sliding block is fixedly connected to the lower sliding block, a rectangular through hole is provided on the lower sliding block, there are two limit blocks, and they are respectively fixedly arranged on opposite sides of the rectangular through hole, the second guide groove is arranged on the limit block, the upper end of the second core is also provided with a third guide groove, the limit block is provided with a third guide rail, and the third guide rail can be slidably arranged in the third guide groove.

[0014] In a possible implementation manner, a first guide column is provided on the second sliding block, a first guide hole is provided on the upper mold core, and the first guide column can slide into the first guide hole.

[0015] In a possible embodiment, it also includes a first side core pulling mechanism, which includes a first inclined guide column and a third core, the first inclined guide column is arranged on the upper template, the third core can be slidably arranged on the lower template, and a second inclined guide hole is provided on the third core, and the first inclined guide column extends into the second inclined guide hole.

[0016] In a possible implementation manner, a first elastic member is provided at one end of the third core close to the lower mold core, one end of the first elastic member abuts against the third core, and the other end of the first elastic member abuts against the lower mold core.

[0017] In a possible embodiment, the lower mold assembly also includes a lower mold fixing plate, a square iron and a lifting plate, the square iron is arranged on the lower mold fixing plate, the lower mold plate is arranged on the square iron, a second guide column is provided on the lower mold fixing plate, the lifting plate can be slidably mounted on the second guide column, and a pin assembly is provided on the lifting plate, and the pin assembly is used to lift the molded product.

[0018] In a possible embodiment, it also includes a second side core pulling mechanism, which includes a second inclined guide column and a fourth core, the second inclined guide column is arranged on the lifting plate, the fourth core can be slidably arranged on the lower template, the fourth core is provided with a second inclined guide groove, and the second inclined guide column extends into the second inclined guide groove.

[0019] Compared with the prior art, the beneficial effect of the present invention is that when the molded product needs to be demolded, the upper mold fixing plate is first separated from the upper mold plate, and the connecting column is away from the first slider. Under the cooperation of the inclined guide rail and the first inclined guide groove, the connecting column drives the first slider to slide, and the first slider drives the first core to slide, so that the first core is away from the molded product. Then, the lower mold plate is separated from the upper mold plate. At this time, since the second core is engaged with the molded product, the second core moves with the lower mold plate. Therefore, the second core drives the second slider to slide, and due to the limitation of the first inclined guide hole, the second core will slide laterally while following the movement of the lower mold plate, so that the second core is away from the molded product. The setting of the first core and the second core can form the required structure on the bracket product, and the setting of the first sliding demolding mechanism and the second sliding demolding mechanism can separate the first core and the second core from the molded product during the mold opening process, which provides great convenience for the demolding of the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a bracket mold with multi-stage demoulding of the present invention;

[0021] Figure 2 A cross-sectional view of an upper mold assembly in a bracket mold with multi-stage demoulding according to the present invention;

[0022] Figure 3 It is a structural schematic diagram of the first sliding demoulding mechanism in the bracket mold with multi-stage demoulding of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the first sliding block in the bracket mold with multi-stage demoulding of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the second sliding demoulding mechanism in the bracket mold with multi-stage demoulding of the present invention;

[0025] Figure 6 It is an exploded schematic diagram of the second sliding demoulding mechanism in the bracket mold with multi-stage demoulding of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the upper mold core in the bracket mold with multi-stage demoulding of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the upper mold fixing plate in the bracket mold with multi-stage demoulding of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the upper mold plate in the multi-stage demoulding bracket mold of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the upper mold assembly in the bracket mold with multi-stage demoulding of the present invention;

[0030] Fig.11 It is a structural schematic diagram of the third core, the fourth core and the lower mold assembly in the bracket mold with multi-stage demoulding of the present invention;

[0031] Fig.12 It is a schematic structural diagram of the third core in the bracket mold with multi-stage demoulding of the present invention;

[0032] Fig.13 It is a structural schematic diagram of the fourth core in the bracket mold with multi-stage demoulding of the present invention;

[0033] Fig.14 It is a structural schematic diagram of a lifting plate in a bracket mold with multi-stage demoulding of the present invention;

[0034] Fig.15 It is a structural schematic diagram of the lower mold assembly in the bracket mold with multi-stage demoulding of the present invention.

[0035] In the figure:

[0036] 100, upper die fixing plate; 1001, third guide column; 101, upper die pad; 102, upper die plate; 1021, receiving groove; 103, upper die core; 1031, first oblique guide hole; 1032, straight guide hole; 1033, first slide groove; 1034, first guide groove; 1035, first guide hole; 104, cover plate; 105, first positioning stud; 106, second positioning stud; 1061, first positioning hole;

[0037] 200, lower die fixing plate; 2001, second guide column; 201, square iron; 202, lower die plate; 2021, second positioning hole; 2022, second slide groove; 2023, third slide groove; 2024, fourth guide rail; 2025, limit groove; 203, lower die core; 2031, third positioning hole; 204, elastic positioning member; 205, lifting plate; 2051, ejector assembly; 206, sensor; 207, stopper;

[0038] 300, connecting column; 3001, first inclined surface; 301, first slider; 3011, first inclined guide groove; 3012, first guide rail; 3013, second inclined surface; 302, first core; 303, inclined guide rail; 304, second elastic member;

[0039] 400, second slider; 4001, second guide groove; 4002, upper slider; 4003, lower slider; 4004, limit block; 4005, third guide rail; 4006, screw sleeve; 401, second core; 4011, second guide rail; 4012, third guide groove; 402, first guide column;

[0040] 500, first oblique guide column; 501, third core; 5011, second oblique guide hole; 5012, positioning groove; 502, first elastic member;

[0041] 600, second inclined guide column; 6001, third inclined surface; 601, fourth core; 6011, second inclined guide groove; 6012, fourth guide groove; 6013, fourth inclined surface;

[0042] 700, gate; 701, runner;

[0043] 800. Flexible water pipe. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] like Figure 1-15The multi-stage demoulding bracket mold shown in the figure includes an upper mold assembly, a lower mold assembly, a first sliding demoulding mechanism, and a second sliding demoulding mechanism; the upper mold assembly includes an upper mold fixing plate 100 and an upper mold plate 102, the upper mold plate 102 can be movably arranged on the upper mold fixing plate 100, the upper mold core 103 is provided on the upper mold core 103, and the first inclined guide hole 1031 and the straight guide hole 1032 are provided on the upper mold core 103; the lower mold assembly includes a lower mold plate 202, the lower mold plate 202 is provided with a lower mold core 203, the upper mold core 103 and the lower mold core 203 form a bracket injection cavity; the first sliding demoulding mechanism includes a connecting column 300, a first slider 301 and a first core 302, the upper end of the connecting column 300 is fixed on the upper mold fixing plate 100, the lower end of the connecting column 300 is provided with an inclined guide rail 303, and the first slider 301 is moved along the upper mold The core 103 can be slidably arranged on the upper mold core 103 in the length direction, the first slider 301 is provided with a first inclined guide groove 3011, the inclined guide rail 303 is slidably matched with the first inclined guide groove 3011, the end of the first core 302 is arranged on the first slider 301, the first core 302 can be slidably arranged in the straight guide hole 1032 and extend into the injection cavity of the bracket; the second sliding demoulding mechanism includes a second slider 400 and a second core 401, the second slider 400 is arranged in the upper template 102, and the second slider 400 is slidably arranged along the height direction of the upper template 102, the upper end of the second core 401 is connected to the second slider 400, and the second core 401 is slidably arranged along the length direction of the upper template 102, and the second core 401 is slidably arranged in the first inclined guide hole 1031 and extends into the injection cavity of the bracket.Specifically, the upper mold assembly also includes an upper mold pad 101, which is fixedly arranged on the upper mold fixing plate 100, and a third guide column 1001 is arranged on the upper mold fixing plate 100. The upper mold plate 102, the lower mold plate 202 and the square iron 201 are slidably mounted on the third guide column 1001 in sequence, and the end of the third guide column 1001 is in contact with the lower mold fixing plate 200; a blind hole is arranged at the end of the first slider 301, and a second elastic member 304 is arranged in the blind hole, and the end of the second elastic member 304 is in contact with the upper mold core 103, and the second elastic member 304 can buffer the first slider 301 to improve the sliding stability of the first slider 301; a cavity is arranged in the upper mold plate 102, and the second slider 400 is arranged in the cavity. The cavity can provide sufficient moving space for the second slider 400, and the top of the cavity A cover plate 104 is provided, and the cover plate 104 is bolted to the upper template 102. The cover plate 104 is used to close the cavity so that the second slider 400 can only move in the cavity; in addition, a first positioning stud 105 is provided on the upper mold fixing plate 100, and a second positioning stud 106 is provided on the upper template 102. The second positioning stud 106 is penetrated from the lower end of the upper template 102 into the upper template 102, and a first positioning hole 1061 is provided at the upper end of the second positioning stud 106. The first positioning stud 105 passes through the upper mold pad and is inserted into the first positioning hole 1061. A second positioning hole 2021 is provided on the lower template 202, and the lower end of the second positioning stud 106 is inserted into the second positioning hole 2021. The arrangement of the first positioning stud 105 and the second positioning stud 106 is beneficial to improving the overall structural stability of the mold when the mold is in a closed state.

[0048] The beneficial effect of the present invention is that when the molded product needs to be demoulded, the upper mold fixing plate 100 is first separated from the upper mold plate 102, and the connecting column 300 is away from the first slider 301. Under the cooperation of the inclined guide rail 303 and the first inclined guide groove 3011, the connecting column 300 drives the first slider 301 to slide, and the first slider 301 drives the first core 302 to slide, so that the first core 302 is away from the molded product. Then, the lower mold plate 202 is separated from the upper mold plate 102. At this time, since the second core 401 is engaged with the molded product, the second core 401 moves with the lower mold plate 202. Therefore, the second core 401 drives the second slider 400 to slide, and due to the limitation of the first inclined guide hole 1031, the second core 401 will slide laterally while following the movement of the lower template 202, so that the second core 401 is away from the molded product; the setting of the first core 302 and the second core 401 can form the required structure on the bracket product, and the setting of the first sliding demolding mechanism and the second sliding demolding mechanism can separate the first core 302 and the second core 401 from the molded product during the mold opening process, which greatly facilitates the demolding of the molded product.

[0049] Please refer to Figure 3 and Figure 7 In a possible embodiment, the upper mold core 103 is provided with a first slide groove 1033, the first slider 301 is arranged in the first slide groove 1033, the first guide rails 3012 are arranged on both sides of the lower end of the first slider 301, the lower end of the inner wall of the first slide groove 1033 is provided with a first guide groove 1034, and the first guide rail 3012 can be slidably arranged in the first guide groove 1034. It should be noted that the setting of the first slide groove 1033 can provide a mounting base and sufficient sliding space for the first slider 301, and the cooperation of the first guide rail 3012 and the first guide groove 1034 can improve the sliding stability of the first slider 301. In addition, the upper mold plate 102 is also provided with a through hole for the connection column 300 to pass through, the through hole is connected to the first slide groove 1033, and the lower end of the connection column 300 extends from the through hole into the first slide groove 1033, so that the inclined guide rail 303 and the first inclined guide groove 3011 can be slidably matched.

[0050] Please refer to Figure 3 , Figure 4 and Figure 8 In a possible embodiment, the lower end of the connecting column 300 is provided with a first inclined surface 3001, one end of the first slider 301 is provided with a second inclined surface 3013, the inclined guide rail 303 is arranged on the first inclined surface 3001, and the first inclined guide groove 3011 is arranged on the second inclined surface 3013. After the inclined guide rail 303 and the first inclined guide groove 3011 are matched, the first inclined surface 3001 and the second inclined surface 3013 are adapted and fitted. It is easy to understand that the setting of the first inclined surface 3001 can provide a mounting basis for the inclined setting of the inclined guide rail 303, the setting of the second inclined surface 3013 can provide a position for the inclined setting of the first inclined guide groove 3011, and the adaptation and fitting of the first inclined surface 3001 and the second inclined surface 3013 can improve the connection stability between the connecting column 300 and the first slider 301, so that the connecting column 300 can drive the first slider 301 to move more smoothly, which is conducive to improving the overall stability of the first sliding demoulding mechanism.

[0051] Please refer to Figure 6In a possible implementation manner, a second guide rail 4011 is provided at the upper end of the second core 401 , a second guide groove 4001 is provided in the second slider 400 , and the second guide rail 4011 can be slidably disposed in the second guide groove 4001 . It should be noted that the sliding cooperation between the second guide rail 4011 and the second guide groove 4001 can improve the sliding stability of the second core 401. Specifically, the second guide groove 4001 extends along the length direction of the upper template 102. The sliding cooperation between the second guide rail 4011 and the second guide groove 4001 can enable the second core 401 to slide along the extension direction of the second guide groove 4001. When opening the mold, when the second core 401 moves downward with the lower template 202, the second slider 400 is driven by the second core 401 to slide downward. Since the first inclined guide hole 1031 is inclined, the second core 401 will slide laterally along the second guide groove 4001 while sliding downward, so that the second core 401 is separated from the molded product while sliding, so as to achieve smooth demolding of the product.

[0052] Please refer to Figure 6 In a possible implementation, the second slider 400 includes an upper slider 4002, a lower slider 4003 and a limit block 4004, the upper slider 4002 is fixedly connected to the lower slider 4003, the lower slider 4003 is provided with a rectangular through hole, the limit blocks 4004 are two in number and are respectively fixedly arranged on opposite sides of the rectangular through hole, the second guide groove 4001 is arranged on the limit block 4004, the upper end of the second core 401 is also provided with a third guide groove 4012, the limit block 4004 is provided with a third guide rail 4005, and the third guide rail 4005 can be slidably arranged in the third guide groove 4012. It should be noted that the second slider 400 is composed of an upper slider 4002, a lower slider 4003 and two limit blocks 4004. The upper slider 4002 is fixedly connected to the lower slider 4003 by bolts, and a screw sleeve 4006 is sleeved on the bolt. The lower end of the screw sleeve 4006 abuts against the top surface of the upper slider 4002, which is beneficial to improve the connection stability between the upper slider 4002 and the lower slider 4003. The screw sleeve 4006 is cylindrical, and a circular groove is provided on the cover plate 104. The screw sleeve 4006 extends into the circular groove. The upper end of the limit block 4004 is fixedly connected to the lower slider 4003 by bolts. Bolts are fixed on the upper slide plate 4002, the lower end of the limit block 4004 extends into the rectangular through hole of the lower slide plate 4003, the two limit blocks 4004 are arranged opposite to each other, the second guide groove 4001 is arranged on the limit block 4004, and second guide rails 4011 are provided on both sides of the upper end of the second core 401. The upper end of the second core 401 extends into the rectangular through hole, and the second guide rail 4011 extends into the second guide groove 4001 and is slidably connected with the limit block 4004. This design ensures that the second slider 400 and the second core 401 can be smoothly assembled or disassembled.

[0053] Please refer to Figure 5 and Figure 7In a possible embodiment, a first guide post 402 is provided on the second slider 400, and a first guide hole 1035 is provided on the upper mold core 103. The first guide post 402 can slide into the first guide hole 1035. It should be noted that the first guide post 402 is fixedly arranged on the lower slide plate 4003, and the first guide post 402 extends into the first guide hole 1035. When the second slider 400 slides downward, the first guide post 402 can guide the second slider 400 to ensure that the second slider 400 does not deviate during the sliding process. A third positioning hole 2031 corresponding to the first guide post 402 is provided on the lower mold core 203. In the mold closing state, the lower end of the first guide post 402 passes through the first guide hole 1035 and extends into the third positioning hole 2031 to improve the overall stability of the second sliding demolding mechanism.

[0054] Please refer to Figure 10-12 and Fig.15 In a possible embodiment, it also includes a first side core pulling mechanism, which includes a first inclined guide column 500 and a third core 501. The first inclined guide column 500 is arranged on the upper template 102, and the third core 501 can be slidably arranged on the lower template 202. The third core 501 is provided with a second inclined guide hole 5011, and the first inclined guide column 500 extends into the second inclined guide hole 5011. It should be noted that a second slide groove 2022 is provided on the lower template 202, and the third core 501 can be slidably set in the second slide groove 2022. The setting of the second slide groove 2022 can play a guiding and limiting role for the third core 501, so that the third core 501 can only slide smoothly along the second slide groove 2022, which is beneficial to improving the sliding stability of the third core 501; an elastic positioning member 204 is provided at the bottom of the second slide groove 2022, and two positioning grooves 5012 corresponding to the elastic positioning member 204 are provided on the bottom surface of the third core 501. The two positioning grooves 5012 are arranged at intervals, and the distance between the two positioning grooves 5012 is equal to the sliding distance of the third core 501. When the mold is in the mold closing state, the upper end of the elastic positioning member 204 extends into one of them When the mold is opened, the third core 501 starts to slide outward in the positioning groove 5012, and the elastic positioning piece 204 disengages from the positioning groove 5012 and slides and rubs with the bottom surface of the third core 501. When the third core 501 has finished moving, the elastic positioning piece 204 extends into another positioning groove 5012. The elastic positioning piece 204 cooperates with the positioning groove 5012 to position the sliding of the third core 501, which is beneficial to improving the sliding accuracy of the third core 501. Furthermore, the elastic positioning piece 204 can be composed of a spring and a positioning block. The positioning block is arranged at the top end of the spring. When the positioning groove 5012 slides to a position opposite to the positioning block, the top end of the positioning block extends into the positioning groove 5012 under the elastic force of the spring, thereby positioning the third core 501.

[0055] Please refer to Fig.12 In a possible implementation, a first elastic member 502 is provided at one end of the third core 501 close to the lower mold core 203, one end of the first elastic member 502 abuts against the third core 501, and the other end of the first elastic member 502 abuts against the lower mold core 203. It should be noted that a blind hole is provided at the end of the third core 501, and the first elastic member 502 can be a spring, and the first elastic member 502 is arranged in the blind hole. The arrangement of the first elastic member 502 can play a buffering role for the third core 501, avoiding the third core 501 from colliding with the lower mold core 203 during the sliding process of opening and closing the mold, and can further improve the sliding stability and service life of the third core 501.

[0056] Please refer to Fig.11 and 14 In a possible embodiment, the lower mold assembly also includes a lower mold fixing plate 200, a square iron 201 and a lifting plate 205. The square iron 201 is arranged on the lower mold fixing plate 200, and the lower mold plate 202 is arranged on the square iron 201. The lower mold fixing plate 200 is provided with a second guide column 2001, and the lifting plate 205 can be slidably mounted on the second guide column 2001. The lifting plate 205 is provided with an ejector assembly 2051, and the ejector assembly 2051 is used to lift the molded product. It should be noted that the ejector assembly 2051 includes a plurality of ejectors with different structures, each of which can slide through the lower mold plate 202 and the lower mold core 203 in sequence, and the top surface of each ejector fits the surface of the molded product. When demoulding, the ejector plate 205 moves under the action of the external driving member, and the ejector assembly 2051 performs a lifting movement with the ejector plate 205. The molded product is lifted under the action of each ejector, thereby separating from the lower mold core 203 to realize the demoulding of the molded product; the second guide column 2001 can guide the ejector plate 205, so that the ejector plate 205 can only move along the lower mold core 203. The sliding of the second guide column 2001 is beneficial to improving the sliding stability of the fixed lifting plate 205; in addition, a sensor 206 is also provided on the side wall of the lower mold fixed plate 200, and a stopper 207 corresponding to the sensor 206 is provided on the side wall of the lifting plate 205. The sensor 206 is electrically connected to the external driving component. When the mold is closed, the lifting plate 205 moves from the lifting state to the lower mold fixed plate 200. When the lifting plate 205 returns to the initial state, the stopper 207 triggers the sensor 206, so that the external driving component stops driving the lifting plate 205, which is beneficial to improving the accuracy of the movement of the lifting plate 205.

[0057] Please refer to Fig.11 , Figures 13 to 15In a possible embodiment, it also includes a second side core pulling mechanism, which includes a second inclined guide column 600 and a fourth core 601. The second inclined guide column 600 is arranged on the lifting plate 205, and the fourth core 601 can be slidably arranged on the lower template 202. The fourth core 601 is provided with a second inclined guide groove 6011, and the second inclined guide column 600 extends into the second inclined guide groove 6011. It should be noted that the lower template 202 is provided with a third slide groove 2023, the bottom of the third slide groove 2023 is provided with a fourth guide rail 2024, the fourth core 601 is provided with a fourth guide groove 6012, the fourth core 601 can be slidably arranged in the third slide groove 2023, the fourth guide rail 2024 and the fourth guide groove 6012 are slidably matched, which is conducive to improving the sliding stability of the fourth core 601; the upper end of the second inclined guide column 600 has a third inclined surface 6001, the second inclined guide groove 6011 is located on the side wall of the fourth core 601, and one side inner wall of the second inclined guide groove 6011 is a fourth inclined surface 6013, and the third inclined surface 6001 and the fourth inclined surface 6013 are connected. Contact, when the lifting plate 205 rises, the second inclined guide column 600 also rises, and the fourth core 601 slides outward under the resistance of the second inclined guide column 600, so that the end of the fourth core 601 is separated from the molded product; further, a limiting groove 2025 is provided on the inner wall of the third slide groove 2023, and the limiting groove 2025 corresponds to the second inclined guide groove 6011. Half of the second inclined guide column 600 is located in the limiting groove 2025, and the other half is located in the second inclined guide groove 6011. The limiting groove 2025 can limit the second inclined guide column 600 to avoid shaking or deviation of the second inclined guide column 600, so as to improve the sliding stability of the second inclined guide column 600.

[0058] Please refer to Figure 1 and Fig. 9It should also be noted that the mold also includes a pouring system and a cooling system; the pouring system includes a gate 700 and a runner 701 that are connected in sequence, the gate 700 is arranged on the upper mold fixing plate 100, the runner 701 is arranged in the upper mold plate 102, the lower end of the gate 700 is connected to the upper end of the runner 701, and the runner 701 is connected to the bracket injection cavity, and the bracket injection cavity is formed by the upper mold core 103, the lower mold core 203, the first core 302, the second core 401, the third core 501 and the fourth core 601, and each of them has a shaping surface and a variety of shaping structures to form a desired structure on the molded product; the cooling system includes a cooling water pipe, and the upper mold plate 102, the upper mold core 103, the lower mold plate 202, the lower mold core 203, the second core 401, the third core 501 and the fourth core 601. The core 501 and the fourth core 601 are both provided with cooling water pipes so that the material can be quickly cooled and formed, and the upper template 102, the lower template 202, the second core 401, the third core 501 and the fourth core 601 are all provided with water inlets and outlets for the cooling water pipes, and the upper mold core 103 and the upper template 102 share a set of cooling water pipes, and the lower mold core 203 and the lower template 202 share a set of cooling water pipes, and the upper slide plate 4002 and the cover plate 104 are both provided with through holes, and the cooling water pipe in the second core 401 is connected to the water pipe port arranged on the side wall of the upper template 102 through a flexible water pipe 800, and the upper template 102 is provided with a receiving groove 1021 for storing the flexible water pipe 800, so that the flexible water pipe 800 has sufficient length for the second core 401 to slide.

[0059] The demoulding process of this mold is briefly described as follows:

[0060] In the first step, the upper mold plate 102 moves together with the lower mold assembly to separate the upper mold plate 102 from the upper mold pad 101. During the separation process, the connecting column 300 drives the first slider 301 to move horizontally, and the first slider 301 drives the first core 302 to move, so that the first core 302 is separated from the molded product.

[0061] In the second step, the upper mold assembly is separated from the lower mold assembly, the upper mold core 103 is separated from the molded product, and the second core 401 moves with the molded product. The second core 401 moves horizontally while moving downward to separate the second core 401 from the molded product. At the same time, the first inclined guide column 500 drives the third core 501 to separate from the molded product.

[0062] In the third step, the lifting plate 205 rises under the action of the external driving member, and the second inclined guide column 600 drives the fourth core 601 to separate from the molded product. At the same time, the molded product is separated from the mold core under the action of the ejector assembly 2051, completing the demoulding work of the product.

[0063] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection 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 multi-stage demoulding bracket mold, characterized in that: It includes an upper mold assembly, a lower mold assembly, a first sliding demoulding mechanism, and a second sliding demoulding mechanism; The upper mold assembly comprises an upper mold fixing plate and an upper mold plate, wherein the upper mold plate is movably arranged on the upper mold fixing plate, an upper mold core is arranged on the upper mold core, and a first oblique guide hole and a straight guide hole are arranged on the upper mold core; The lower mold assembly comprises a lower mold plate, a lower mold core is arranged on the lower mold plate, and the upper mold core and the lower mold core form a bracket injection cavity; The first sliding demoulding mechanism comprises a connecting column, a first slider and a first core, the upper end of the connecting column is fixed to the upper mold fixing plate, the lower end of the connecting column is provided with an inclined guide rail, the first slider is slidably arranged on the upper mold core along the length direction of the upper mold core, the first slider is provided with a first inclined guide groove, the inclined guide rail is slidably matched with the first inclined guide groove, the end of the first core is arranged on the first slider, and the first core is slidably arranged in the straight guide hole and extends into the injection cavity of the bracket; The second sliding demolding mechanism includes a second slider and a second core, the second slider is arranged in the upper template, and the second slider can be slidably arranged along the height direction of the upper template, the upper end of the second core is connected to the second slider, and the second core can be slidably arranged along the length direction of the upper template, and the second core can be slidably arranged in the first inclined guide hole and extend into the injection cavity of the bracket.

2. The multi-stage demoulding bracket mold according to claim 1, characterized in that: A first slide groove is provided on the upper mold core, the first slider is arranged in the first slide groove, first guide rails are provided on both sides of the lower end of the first slider, a first guide groove is provided at the lower end of the inner wall of the first slide groove, and the first guide rail can be slidably arranged in the first guide groove.

3. The multi-stage demoulding bracket mold according to claim 1, characterized in that: A first inclined surface is provided at the lower end of the connecting column, a second inclined surface is provided at one end of the first sliding block, the inclined guide rail is provided on the first inclined surface, and the first inclined guide groove is provided on the second inclined surface. After the inclined guide rail cooperates with the first inclined guide groove, the first inclined surface and the second inclined surface fit together.

4. The multi-stage demoulding bracket mold according to claim 1, characterized in that: A second guide rail is disposed at the upper end of the second core, a second guide groove is disposed in the second sliding block, and the second guide rail can be slidably disposed in the second guide groove.

5. The multi-stage demoulding bracket mold according to claim 4, characterized in that: The second sliding block includes an upper sliding block, a lower sliding block and a limit block, the upper sliding block is fixedly connected to the lower sliding block, a rectangular through hole is provided on the lower sliding block, there are two limit blocks, and they are respectively fixedly arranged on opposite sides of the rectangular through hole, the second guide groove is arranged on the limit block, the upper end of the second core is also provided with a third guide groove, the limit block is provided with a third guide rail, and the third guide rail can be slidably arranged in the third guide groove.

6. The multi-stage demoulding bracket mold according to claim 1, characterized in that: The second sliding block is provided with a first guide column, the upper die core is provided with a first guide hole, and the first guide column can slide into the first guide hole.

7. The multi-stage demoulding bracket mold according to claim 1, characterized in that: It also includes a first side core pulling mechanism, which includes a first inclined guide column and a third core. The first inclined guide column is arranged on the upper template, and the third core can be slidably arranged on the lower template. A second inclined guide hole is provided on the third core, and the first inclined guide column extends into the second inclined guide hole.

8. The multi-stage demoulding bracket mold according to claim 7, characterized in that: A first elastic member is disposed at one end of the third core close to the lower mold core, one end of the first elastic member abuts against the third core, and the other end of the first elastic member abuts against the lower mold core.

9. The multi-stage demoulding bracket mold according to claim 1, characterized in that: The lower mold assembly also includes a lower mold fixing plate, a square iron and a lifting plate. The square iron is arranged on the lower mold fixing plate, and the lower mold plate is arranged on the square iron. A second guide column is arranged on the lower mold fixing plate, and the lifting plate can be slidably mounted on the second guide column. A pin assembly is arranged on the lifting plate, and the pin assembly is used to lift the molded product.

10. The multi-stage demoulding bracket mold according to claim 9, characterized in that: It also includes a second side core pulling mechanism, which includes a second inclined guide column and a fourth core. The second inclined guide column is arranged on the lifting plate, and the fourth core can be slidably arranged on the lower template. The fourth core is provided with a second inclined guide groove, and the second inclined guide column extends into the second inclined guide groove.

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