Mold capable of drawing out side mold core in sectional mode

Abstract

The invention discloses a mold for extracting a side mold core in a sectional manner. The mold comprises a first side core-pulling mechanism and a second side core-pulling mechanism, the first side core-pulling mechanism comprises an air cylinder, a connecting block, a first sliding block, a second sliding block and a third sliding block; the air cylinder is fixedly arranged on the rear mold plate; the driving end of the air cylinder is clamped with the connecting block; the connecting block is fixedly connected with one end of the first sliding block, and a first limiting groove is formed in the side wall of the connecting block; the top face of the other end of the first sliding block is provided with a first inclined face which is provided with an inclined guide rail. The end of the second sliding block is slidably connected with the third sliding block in the vertical direction, the bottom face of the second sliding block is a second inclined face, an inclined guide groove is formed in the second inclined face, the second inclined face is attached to the first inclined face in a matched mode, and the inclined guide rail is slidably connected with the inclined guide groove. The third sliding block is arranged on the rear mold plate in a sliding mode, the third sliding block is of a hollow structure, the first sliding block is arranged in the third sliding block in a sliding and penetrating mode, a first limiting block is arranged on the third sliding block, a limiting protrusion is arranged on the side face of the first limiting block, and the limiting protrusion extends into the first limiting groove so that the first limiting block can be connected with the connecting block in a clamped mode.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a mold for extracting a segmented side core. 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 a front mold and a back mold. When the front mold and the back mold are buckled, the molten material is injected into the cavity through the gate. When the mold is opened, the front mold and the back mold are separated to take out the plastic product.

[0003] A digital video conversion box (Set Top Box), abbreviated as STB, is usually called a set-top box or set-top box. It is a device that connects a television set to an external signal source. A processor, memory, encoder, etc. are usually installed inside a set-top box. Therefore, the inner wall of the chassis frame of the set-top box has a structure for installing various devices, and the outer wall has a variety of connection structures and various interfaces. Since the chassis frame is rectangular, the chassis frame has twelve sides, and the inner and outer sides of the sides have structures that need to be formed, and the upper and lower sides of the chassis frame also need to be formed. Therefore, after the chassis frame is injection molded, the core inside the chassis frame cannot be pulled out from any direction, resulting in the chassis frame being unable to be demolded. In addition, not only the chassis frame of the set-top box, but other rectangular frame products have the problem of being unable to be demolded or inconvenient to demold after being produced using injection molds, which needs to be solved urgently. 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 segmented mold for extracting the side core, so as to solve the technical problem of inconvenient demoulding of rectangular frame products existing in the prior art.

[0005] The present invention is implemented by the following technical scheme: a segmented side core extraction mold, comprising a front mold assembly, a rear mold assembly, and a first side core extraction mechanism;

[0006] The front mold assembly comprises a front mold plate, the front mold plate is provided with a receiving groove, and the receiving groove is provided with a front mold core;

[0007] The rear mold assembly comprises a rear mold plate, on which a rear mold core corresponding to the front mold core is provided;

[0008] The first side core pulling mechanism includes a cylinder, a connecting block, a first slider, a second slider and a third slider;

[0009] The cylinder is fixedly arranged on the rear template, and the driving end of the cylinder is clamped with the connecting block;

[0010] The connecting block is fixedly connected to one end of the first sliding block, and a first limiting groove is provided on the side wall of the connecting block;

[0011] The top surface of the other end of the first sliding block has a first inclined surface, and an inclined guide rail is provided on the first inclined surface;

[0012] The end of the second slider is slidably connected to the third slider in the vertical direction, the bottom surface of the second slider is a second inclined surface, an inclined guide groove is provided on the second inclined surface, the second inclined surface is adapted to fit the first inclined surface, and the inclined guide rail is slidably connected to the inclined guide groove;

[0013] The third slider can be slidably set on the rear template. The third slider is a hollow structure. The first slider can be slidably penetrated into the third slider. The third slider is provided with a first limit block. The side of the first limit block has a limit protrusion. When the connecting block slides outward for a certain distance, the limit protrusion extends into the first limit groove to enable the first limit block to be clamped with the connecting block.

[0014] In a possible implementation, a slide rail is provided at the end of the second slider, a slide hole is provided on the third slider, the slide hole is connected to the hollow part of the third slider, one end of the second slider extends into the hollow structure of the third slider, and the slide rail extends into the slide hole.

[0015] In a possible implementation manner, the third slider is provided with an elastic positioning member, the elastic positioning member passes through the bottom wall of the third slider, the bottom surface of the first slider is provided with a first positioning groove, and the rear template is provided with a second positioning groove;

[0016] In the initial state, the lower end of the elastic positioning member extends into the second positioning groove. When the first sliding block slides outward a certain distance, the upper end of the elastic positioning member extends into the first positioning groove, and the lower end of the elastic positioning member is away from the second positioning groove.

[0017] In a possible implementation manner, the elastic positioning member includes a first fixing block, a first positioning block and a first spring;

[0018] The first fixing block is arranged on the bottom wall of the third sliding block, and a through hole is arranged on the first fixing block;

[0019] The first positioning block is arranged on the first fixing block, the lower end of the first positioning block passes through the through hole and extends into the second positioning groove, and a blind hole is arranged on the first positioning block;

[0020] The first spring is disposed in the blind hole of the first positioning block, one end of the first spring abuts against the first positioning block, and the other end of the first spring abuts against the first fixing block.

[0021] In a possible implementation, a first limiting column is provided on the inner side wall of the third sliding block, a second limiting groove is provided on the outer side wall of the first sliding block, and the first limiting column extends into the second limiting groove.

[0022] In a possible embodiment, a fixed seat is provided on the rear template, the cylinder is arranged on the fixed seat, a first sensor is provided on the fixed seat, a first connecting rod is provided on the first slider, a first blocking ring is sleeved on the first connecting rod, and the first blocking ring is used to trigger the first sensor.

[0023] In a possible implementation, a second sensor is further provided on the fixing seat, a second connecting rod is provided on the first limiting block, a second blocking ring is sleeved on the second connecting rod, and the second blocking ring is used to trigger the second sensor.

[0024] In a possible embodiment, an elastic limit member is provided on the rear template, a third limit groove is provided at the bottom of the third sliding block, the elastic limit member extends into the third limit groove, an extrusion rod is provided on the connecting block, and the extrusion rod is located above the elastic limit member. When the extrusion rod is driven by the connecting block to move a certain distance, the extrusion rod contacts the elastic limit member and squeezes the elastic limit member to move downward.

[0025] In a possible implementation manner, the elastic limiting member includes a second fixing block, a second limiting block and a second spring;

[0026] The second fixing block is arranged on the rear template, and a through hole is provided on the second fixing block;

[0027] The second limiting block is arranged on the second fixing block, the upper end of the second limiting block passes through the through hole and extends into the third limiting groove, and a blind hole is arranged on the second limiting block, and a third inclined surface is arranged on the top of the second limiting block;

[0028] The lower surface of the end of the extrusion rod is provided with an extrusion protrusion, and the two opposite sides of the extrusion protrusion are provided with a fourth inclined surface, and the fourth inclined surface corresponds to the third inclined surface;

[0029] The second spring is arranged in the blind hole of the second limiting block, one end of the second spring abuts against the second limiting block, and the other end of the second spring abuts against the rear template.

[0030] In a possible implementation manner, a third limiting block is provided on the front template, a fourth limiting groove is provided on the top surface of the first limiting block, and the lower end of the third limiting block extends into the fourth limiting groove.

[0031] Compared with the prior art, the beneficial effect of the present invention is that: when the first side core pulling mechanism needs to be separated from the molded product, the cylinder drives the first slider to slide outward through the connecting block, and with the cooperation of the inclined guide rail and the inclined guide groove, the second slider slowly moves downward. After the connecting block slides outward for a certain distance, with the cooperation of the limiting protrusion and the first limiting groove, the first limiting block and the connecting block are clamped, so that the third slider is driven by the connecting block to slide together. At this time, the cylinder drives the first slider, the second slider and the third slider to slide outward together, so as to realize the smooth separation of the first side core pulling mechanism from the molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the first side core pulling mechanism in the mold for segmented side core pulling of the present invention;

[0033] Figure 2 It is an exploded schematic diagram of the first side core pulling mechanism in the mold for extracting the side core in sections of the present invention;

[0034] Figure 3 It is a structural schematic diagram of a first slider and a second slider in a mold for extracting a side core in a segmented manner according to the present invention;

[0035] Figure 4 It is a structural schematic diagram of the third slider in the mold of the segmented side core extraction of the present invention;

[0036] Figure 5 It is an exploded schematic diagram of an elastic positioning member in a mold for extracting a side core in a segmented manner according to the present invention;

[0037] Figure 6 It is a structural schematic diagram of a mold for extracting a side core in sections according to the present invention;

[0038] Figure 7 It is a structural schematic diagram of the front mold assembly in the mold of the segmented side core extraction of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the mold of the segmented side core extraction of the present invention after the front mold component is hidden;

[0040] Fig. 9 It is a structural schematic diagram of the rear mold assembly in the mold of the segmented side core extraction of the present invention;

[0041] Fig.10 for Fig. 9 A magnified detail of the center A;

[0042] Fig.11 It is an exploded schematic diagram of an elastic stopper in a mold for extracting a side core in a segmented manner according to the present invention;

[0043] Fig.12It is a structural schematic diagram of the fourth slider in the mold for extracting the side core in sections of the present invention;

[0044] Fig.13 It is a schematic structural diagram of a lifting plate in a mold for extracting a side core in sections according to the present invention.

[0045] In the figure:

[0046] 100, front mold fixing plate; 101, front mold pad; 102, front mold plate; 1021, receiving groove; 1022, third limiting block; 1023, first guide hole; 103, front mold core;

[0047] 200, rear mold fixing plate; 201, square iron; 2011, third sensor; 202, rear mold plate; 2021, second positioning groove; 2022, limit clamp; 2023, first guide column; 2024, second guide hole; 203, rear mold core; 204, fixing seat; 2041, first sensor; 2042, second sensor; 205, lifting plate; 2051, ejector pin; 2052, second guide column; 2053, stopper;

[0048] 300, cylinder; 301, connecting block; 3011, first limiting groove; 302, first slider; 3021, first inclined surface; 3022, inclined guide rail; 3023, first positioning groove; 3024, second limiting groove; 3025, first connecting rod; 3026, first blocking ring; 303, second slider; 3031, second inclined surface; 3032, inclined guide groove; 3033, slide rail; 304, third slider; 3041, sliding hole; 3042, first limiting column; 3043, third limiting groove; 305, first limiting block; 3051, limiting protrusion; 3052, second connecting rod; 3053, second blocking ring; 3054, fourth limiting groove; 306, extrusion rod; 3061, extrusion protrusion; 3062, fourth inclined surface;

[0049] 400, elastic positioning member; 401, first fixing block; 402, first positioning block; 403, first spring;

[0050] 500, elastic limiting member; 501, second fixing block; 502, second limiting block; 5021, third inclined plane; 503, second spring;

[0051] 600, fourth sliding block; 6001, oblique guide hole; 601, oblique guide column; 602, second limiting column; 603, third spring. DETAILED DESCRIPTION

[0052] 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.

[0053] 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.

[0054] 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.

[0055] like Figure 1-13The mold for extracting the side core in a segmented manner shown in the figure comprises a front mold assembly, a rear mold assembly, and a first side core pulling mechanism; the front mold assembly comprises a front mold plate 102, the front mold plate 102 is provided with a receiving groove 1021, and the receiving groove 1021 is provided with a front mold core 103; the rear mold assembly comprises a rear mold plate 202, and the rear mold plate 202 is provided with a rear mold core 203 corresponding to the front mold core 103; the first side core pulling mechanism comprises a cylinder 300, a connecting block 301, a first slider 302, a second slider 303 and a third slider 304; the cylinder 300 is fixedly arranged on the rear mold plate 202, and the driving end of the cylinder 300 is clamped with the connecting block 301; the connecting block 301 is fixedly connected to one end of the first slider 302, and a first limiting groove 3011 is provided on the side wall of the connecting block 301; the top surface of the other end of the first slider 302 has a first inclined surface 3021, and the first inclined surface 3021 is provided on the top surface of the first inclined surface 3021. An inclined guide rail 3022 is provided on 3021; ​​the end of the second slider 303 is slidably connected with the third slider 304 in the vertical direction, the bottom surface of the second slider 303 is a second inclined surface 3031, and an inclined guide groove 3032 is provided on the second inclined surface 3031, the second inclined surface 3031 is adapted to fit with the first inclined surface 3021, and the inclined guide rail 3022 is slidably connected with the inclined guide groove 3032; the third slider 304 can be slidably set on the rear template 202, the third slider 304 is a hollow structure, the first slider 302 can be slidably penetrated into the third slider 304, and a first limit block 305 is provided on the third slider 304, and a limit protrusion 3051 is provided on the side of the first limit block 305. When the connecting block 301 slides outward for a certain distance, the limit protrusion 3051 extends into the first limit groove 3011, so that the first limit block 305 is clamped with the connecting block 301. Specifically, the connecting block 301 is fixedly connected to the first slider 302 by bolts, the inclined guide rail 3022 is fixed to the first slider 302 by bolts, a slide groove is provided on the rear template 202, and the third slider 304 can be slidably arranged in the slide groove.

[0056] The beneficial effect of the present invention is that when the first side core pulling mechanism needs to be separated from the molded product, the cylinder 300 drives the first slider 302 to slide outward through the connecting block 301, and with the cooperation of the inclined guide rail 3022 and the inclined guide groove 3032, the second slider 303 slowly moves downward. After the connecting block 301 slides outward for a certain distance, with the cooperation of the limiting protrusion 3051 and the first limiting groove 3011, the first limiting block 305 is engaged with the connecting block 301, so that the third slider 304 is driven by the connecting block 301 to slide together. At this time, the cylinder 300 drives the first slider 302, the second slider 303 and the third slider 304 to slide outward together, so as to realize the smooth separation of the first side core pulling mechanism from the molded product.

[0057] Please refer to Figure 2In a possible implementation, a slide rail 3033 is provided at the end of the second slider 303, and a slide hole 3041 is provided on the third slider 304. The slide hole 3041 is connected to the hollow part of the third slider 304. One end of the second slider 303 extends into the hollow structure of the third slider 304, and the slide rail 3033 extends into the slide hole 3041. It is easy to understand that the slide hole 3041 and the slide rail 3033 cooperate to make the second slider 303 slidably connected with the third slider 304 in the vertical direction, ensuring that the second slider 303 can move downward smoothly and stably under the drive of the first slider 302, and avoiding the second slider 303 and the third slider 304 from separating, thereby improving the stability of the sliding connection between the second slider 303 and the third slider 304.

[0058] Please refer to Figure 2-Figure 4 and Fig.10 In a possible implementation, an elastic positioning member 400 is provided on the third slider 304, and the elastic positioning member 400 passes through the bottom wall of the third slider 304, a first positioning groove 3023 is provided on the bottom surface of the first slider 302, and a second positioning groove 2021 is provided on the rear template 202; in the initial state, the lower end of the elastic positioning member 400 extends into the second positioning groove 2021, and when the first slider 302 slides outward for a certain distance, the upper end of the elastic positioning member 400 extends into the first positioning groove 3023, and the lower end of the elastic positioning member 400 is away from the second positioning groove 2021. It is easy to understand that the elastic positioning member 400 can achieve a two-way positioning effect. When in the mold closing state, the lower end of the elastic positioning member 400 is located in the second positioning groove 2021, so that the third slider 304 is engaged with the rear template 202, which can prevent the third slider 304 from accidentally sliding. At this time, the upper end of the elastic positioning member 400 is in contact with the bottom wall of the first slider 302 and does not affect the sliding of the first slider 302. When the cylinder 300 drives the first slider 302 to move outward a certain distance, the first positioning groove 3023 moves to the top of the elastic positioning member 400, and the elastic positioning member 400 moves upward under the action of the elastic force, so that the upper end of the elastic positioning member 400 extends into the first positioning groove 3023, and the lower end of the elastic positioning member 400 is pulled out of the second positioning groove 2021, so that the third slider 304 can be driven in the next stroke.

[0059] Please refer to Figure 5In a possible implementation manner, the elastic positioning member 400 includes a first fixing block 401, a first positioning block 402 and a first spring 403; the first fixing block 401 is arranged on the bottom wall of the third sliding block 304, and a through hole is provided on the first fixing block 401; the first positioning block 402 is arranged on the first fixing block 401, and the lower end of the first positioning block 402 passes through the through hole and extends into the second positioning groove 2021, and a blind hole is provided on the first positioning block 402; the first spring 403 is arranged in the blind hole of the first positioning block 402, one end of the first spring 403 abuts against the first positioning block 402, and the other end of the first spring 403 abuts against the first fixing block 401. It should be noted that the first fixed block 401 is installed on the third slider 304 by bolts, the top of the first positioning block 402 is a round head, which can reduce the friction between the first positioning block 402 and the first slider 302, and the number of first springs 403 is two, which are respectively arranged on both sides of the first positioning block 402. The blind hole on the first positioning block 402 can limit the first spring 403. The first positioning block 402 is in conflict with the bottom wall of the first slider 302 under the action of the elastic force of the first spring 403.

[0060] Please refer to Figure 2 and Figure 3 In a possible implementation, a first limiting column 3042 is provided on the inner side wall of the third slider 304, a second limiting groove 3024 is provided on the outer side wall of the first slider 302, and the first limiting column 3042 extends into the second limiting groove 3024. It should be noted that the second limiting groove 3024 extends along the length direction of the first slider 302, and the length of the second limiting groove 3024 is the sliding distance of the first slider 302. When the first slider 302 slides outward under the drive of the cylinder 300, the first limiting column 3042 slides in the second limiting groove 3024. After the first slider 302 slides a certain distance, the first limiting column 3042 contacts the end wall of the second limiting groove 3024, so that the first slider 302 is engaged with the third slider 304, so that the first slider 302 can drive the third slider 304 to slide together.

[0061] Please refer to Figure 1 and Fig. 9In a possible implementation, a fixed seat 204 is provided on the rear template 202, the cylinder 300 is arranged on the fixed seat 204, a first sensor 2041 is provided on the fixed seat 204, a first connecting rod 3025 is provided on the first slider 302, a first blocking ring 3026 is sleeved on the first connecting rod 3025, and the first blocking ring 3026 is used to trigger the first sensor 2041. It is easy to understand that the setting of the fixed seat 204 can provide an installation basis for the cylinder 300 and the first sensor 2041, the setting of the first connecting rod 3025 is used to provide an installation basis for the first blocking ring 3026, and the first blocking ring 3026 can be set at any position of the first connecting rod 3025 as needed. When the first slider 302 moves outward a certain distance, the first blocking ring 3026 triggers the first sensor 2041, so that the first sensor 2041 sends a stop signal to the cylinder 300, and prompts the worker that the third slider 304 is engaged with the first slider 302, and the third slider 304 will move together with the first slider 302.

[0062] Please refer to Figure 1 and Fig. 9 In a possible implementation, the fixing seat 204 is further provided with a second sensor 2042, the first limit block 305 is provided with a second connecting rod 3052, the second connecting rod 3052 is sleeved with a second blocking ring 3053, and the second blocking ring 3053 is used to trigger the second sensor 2042. It is easy to understand that the second connecting rod 3052 is used to provide a mounting base for the second blocking ring 3053, and the second blocking ring 3053 can be set at any position of the second connecting rod 3052 as needed. When the third slider 304 moves outwards a certain distance, the second blocking ring 3053 triggers the second sensor 2042, so that the second sensor 2042 transmits a signal to the cylinder 300 to stop working.

[0063] Please refer to Figure 3 , Figure 4 , Fig. 9 and Fig.10In a possible implementation, an elastic limit member 500 is provided on the rear template 202, a third limit groove 3043 is provided at the bottom of the third slider 304, the elastic limit member 500 extends into the third limit groove 3043, and an extrusion rod 306 is provided on the connecting block 301, and the extrusion rod 306 is located above the elastic limit member 500. When the extrusion rod 306 is driven by the connecting block 301 to move a certain distance, the extrusion rod 306 conflicts with the elastic limit member 500 and squeezes the elastic limit member 500 to move downward. It is easy to understand that, in the mold closing state, the top end of the elastic limit member 500 extends into the third limit groove 3043 to limit the third slider 304 and prevent the third slider 304 from accidentally sliding. When the first slider 302 slides outward for a certain distance, the extrusion rod 306 contacts the elastic limit member 500 and squeezes the elastic limit member 500 to move downward and out of the third limit groove 3043, so that the third slider 304 can be driven.

[0064] Please refer to Figure 3 and Fig.11 In a possible embodiment, the elastic limiting member 500 includes a second fixing block 501, a second limiting block 502 and a second spring 503; the second fixing block 501 is arranged on the rear template 202, and the second fixing block 501 is provided with a through hole; the second limiting block 502 is arranged on the second fixing block 501, the upper end of the second limiting block 502 passes through the through hole and extends into the third limiting groove 3043, and the second limiting block 502 is provided with a blind hole, and the top of the second limiting block 502 is provided with a third inclined surface 5021; the lower surface of the end of the extrusion rod 306 has an extrusion protrusion 3061, and the opposite sides of the extrusion protrusion 3061 are provided with a fourth inclined surface 3062, and the fourth inclined surface 3062 corresponds to the third inclined surface 5021; the second spring 503 is arranged in the blind hole of the second limiting block 502, one end of the second spring 503 abuts against the second limiting block 502, and the other end of the second spring 503 abuts against the rear template 202. It should be noted that the second fixing block 501 is fixed to the rear template 202 by bolts, and the second limiting block 502 is limited on the rear template 202 by the second fixing block 501. The blind hole on the second limiting block 502 can limit the second spring 503. The upper end of the second limiting block 502 passes through the second fixing block 501 under the elastic force of the second spring 503 and extends into the third limiting groove 3043. The upper end of the second limiting block 502 is L-shaped, and third inclined surfaces 5021 are provided on the opposite sides of one end of the second limiting block 502. When the extrusion rod 306 moves outward a certain distance, the extrusion protrusion 3061 conflicts with the second limiting block 502. At this time, the third inclined surface 5021 contacts the fourth inclined surface 3062, which can play a transition role, so that the second limiting block 502 can be smoothly pressed down by the extrusion rod 306.

[0065] Please refer to Figure 1 and Figure 7In a possible implementation, the front template 102 is provided with a third limit block 1022, the top surface of the first limit block 305 is provided with a fourth limit groove 3054, and the lower end of the third limit block 1022 extends into the fourth limit groove 3054. It is easy to understand that when the mold is in the mold closing state, the lower end of the third limit block 1022 extends into the fourth limit groove 3054, so that the third limit block 1022 is engaged with the first limit block 305, thereby preventing the third slider 304 from sliding accidentally, so that the third slider 304 can move only after the front template 102 is separated from the rear template 202.

[0066] Please refer to Figures 7 to 9 and Fig.12 It should be supplemented that the mold further includes a second side core pulling mechanism, a pouring system and a cooling system; the second side core pulling mechanism includes a fourth slider 600 and an inclined guide column 601, the fourth slider 600 can be slidably arranged on the rear template 202, the fourth slider 600 is provided with an inclined guide hole 6001, the inclined guide column 601 is arranged on the front template 102, and is located at the bottom of the accommodating groove 1021, the inclined guide column 601 extends into the inclined guide hole 6001, when the front mold assembly is separated from the rear mold assembly, the inclined guide column 601 can drive the fourth slider 600 to slide outward, in addition, the bottom of the fourth slider 600 is provided with a second limiting column 602, and the rear template 202 is provided with a limiting clamp 2022, when the fourth slider 600 slides outward for a certain distance, the second limiting column 602 enters the limiting clamp 2022, so that the fourth slider 600 stops To prevent sliding, a blind hole is provided at the lower end of the fourth slider 600, and a third spring 603 is provided in the blind hole. The third spring 603 contacts the side wall of the rear mold core 203 to buffer the movement of the fourth slider 600; the casting system includes a gate, a main channel and a branch channel which are connected in sequence, the gate is arranged on the front mold fixing plate 100, the main channel is arranged in the front mold pad 101, the branch channel is arranged in the front mold plate 102 and the front mold core 103, and the outlet of the branch channel is arranged on the front mold core 103; the cooling system includes a cooling water pipe, and the front mold pad 101, the front mold plate 102, the front mold core 103, the rear mold plate 202, the rear mold core 203, the first slider 302, the second slider 303, the third slider 304 and the fourth slider 600 are all provided with cooling water pipes so that the material can be quickly cooled and formed.

[0067] Please refer to Figures 6 to 8 and Fig.13The front mold assembly also includes a front mold fixing plate 100 and a front mold pad 101, the front mold pad 101 is arranged on the front mold fixing plate 100, and the front mold plate 102 is arranged on the front mold pad 101. The rear mold assembly also includes a rear mold fixing plate 200, a square iron 201 and a lifting plate 205, the square iron 201 is arranged on the rear mold fixing plate 200, the rear mold plate 202 is arranged on the square iron 201, and the lifting plate 205 is arranged on the rear mold fixing plate 200 and is located between the two square irons 201. The plate 205 is provided with a plurality of ejector pins 2051, and the upper ends of the ejector pins 2051 are inserted into the rear mold plate 202 and the rear mold core 203. When the molded product needs to be ejected, the ejector plate 205 is driven by an external driving member to rise, and the ejector pins 2051 are driven to rise, and the molded product is lifted and separated from the rear mold core 203 under the action of the ejector pins 2051; in addition, the rear mold plate 202 is further provided with a first guide column 2023, and the front mold plate 102 is provided with a first guide hole 1023. The column 2023 extends into the first guide hole 1023, which is beneficial to improve the stability of the movement of the mold when opening and closing the mold. The lifting plate 205 is provided with a second guide column 2052, and the rear template 202 is provided with a second guide hole 2024. The second guide column 2052 extends into the second guide hole 2024, which is beneficial to improve the stability of the movement of the lifting plate 205. In addition, a spring is sleeved on the second guide column 2052 to buffer the movement of the lifting plate 205. The side wall of the square iron 201 is provided with a There are two third sensors 2011 arranged side by side up and down, and a block 2053 for triggering the third sensor 2011 is provided on the side wall of the lifting plate 205. When the lifting plate 205 is in the initial state, the block 2053 triggers the third sensor 2011 located below; when the lifting plate 205 is in the fully lifted state, the block 2053 triggers the third sensor 2011 located above. The setting of the third sensor 2011 enables the mold to accurately control the moving distance of the lifting plate 205.

[0068] Please refer to Figure 7 and Figure 8It should also be noted that molding a product requires two first-side core-pulling mechanisms, two second-side core-pulling mechanisms, a front mold core 103 and a rear mold core 203, which are respectively located on the six surfaces of the molded product, and the two first-side core-pulling mechanisms are arranged opposite to each other and in contact with each other, and the two second-side core-pulling mechanisms are arranged opposite to each other and in contact with the side surfaces of the first-side core-pulling mechanisms. In addition, the end of the first slider 302 and the end of the second slider 303 both have protrusions, and the end of the other first slider 302 and the end of the second slider 303 opposite to each other both have corresponding matching grooves, and the protrusions extend into the grooves when the mold is closed, so that the ends of the two first-side core-pulling mechanisms can fit tightly; after the mold is closed, the two first-side core-pulling mechanisms, the two second-side core-pulling mechanisms, A second side core pulling mechanism, a front mold core 103 and a rear mold core 203 together form an injection cavity, and the hot melt material flows into the injection cavity through the pouring system, and the two first side core pulling mechanisms and the two second side core pulling mechanisms are arranged in a cross shape on the rear mold plate 202, and the rear mold core 203 is located in the middle of the cross, and the accommodating groove 1021 is also cross-shaped, and the front mold core 103 is located in the middle of the accommodating groove 1021. After the mold is closed, the accommodating groove 1021 is used to accommodate the first side core pulling mechanism and the second side core pulling mechanism, which is beneficial to improving the overall structural stability of the mold; in addition, the number of the front mold core 103 and the rear mold core 203 are both two, so that the mold can injection mold two products at one time, which is beneficial to improving the production efficiency of the mold.

[0069] The demoulding process of this mold is briefly described as follows:

[0070] In the first step, the cylinder 300 drives the first slider 302 to slide outward, and the second slider 303 slides downward under the drive of the first slider 302. During the sliding process, the third slider 304 remains unchanged under the blockage of the elastic positioning member 400 and the elastic limiting member 500. When the first blocking ring 3026 triggers the first sensor 2041, the cylinder 300 stops working, and the first slider 302 and the second slider 303 also stop moving.

[0071] In the second step, the front mold assembly is separated from the rear mold assembly, the front mold core 103 is separated from the molded product, and the fourth slider 600 slides outward under the action of the inclined guide column 601 until it is clamped by the second limit column 602 and the limit clamp 2022, so that the fourth slider 600 stops moving. At this time, the third limit block 1022 is far away from the first limit block 305;

[0072] In the third step, the cylinder 300 continues to work. At this time, the lower end of the elastic positioning member 400 has been disengaged from the second positioning groove 2021, and the elastic limiting member 500 has been disengaged from the third limiting groove 3043 under the extrusion of the extrusion rod 306. The limiting protrusion 3051 has completely slid into the first limiting groove 3011, so that the first limiting block 305 is engaged with the connecting block 301, and the first limiting column 3042 has slid to the end wall of the second limiting groove 3024. The upper end of the elastic positioning member 400 has extended into the first positioning groove 3023, thereby preventing the third slider 304 from being blocked by the rear template 202, and making the third slider 304 engaged with the first slider 302, so that the cylinder 300 simultaneously drives the first slider 302, the second slider 303 and the third slider 304 to slide outward until the second blocking ring 3053 triggers the second sensor 2042, and the cylinder 300 stops moving. At this time, the first side core pulling mechanism and the second side core pulling mechanism are completely separated from the molded product;

[0073] In the fourth step, the external driving member drives the lifting plate 205 to rise, and the molded product is separated from the rear mold core 203 by the action of the ejector pin 2051, completing the demoulding work of the product.

[0074] 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 mold for extracting a side core in sections, characterized in that: It includes a front mold assembly, a rear mold assembly, and a first side core pulling mechanism; The front mold assembly comprises a front mold plate, the front mold plate is provided with a receiving groove, and the receiving groove is provided with a front mold core; The rear mold assembly comprises a rear mold plate, on which a rear mold core corresponding to the front mold core is provided; The first side core pulling mechanism includes a cylinder, a connecting block, a first slider, a second slider and a third slider; The cylinder is fixedly arranged on the rear template, and the driving end of the cylinder is clamped with the connecting block; The connecting block is fixedly connected to one end of the first sliding block, and a first limiting groove is provided on the side wall of the connecting block; The top surface of the other end of the first sliding block has a first inclined surface, and an inclined guide rail is provided on the first inclined surface; The end of the second slider is slidably connected to the third slider in the vertical direction, the bottom surface of the second slider is a second inclined surface, an inclined guide groove is provided on the second inclined surface, the second inclined surface is adapted to fit the first inclined surface, and the inclined guide rail is slidably connected to the inclined guide groove; The third slider can be slidably set on the rear template. The third slider is a hollow structure. The first slider can be slidably penetrated into the third slider. The third slider is provided with a first limit block. The side of the first limit block has a limit protrusion. When the connecting block slides outward for a certain distance, the limit protrusion extends into the first limit groove to enable the first limit block to be clamped with the connecting block.

2. The mold for extracting the side core in sections according to claim 1, characterized in that: A slide rail is provided at the end of the second slider, a slide hole is provided on the third slider, the slide hole is connected to the hollow part of the third slider, one end of the second slider extends into the hollow structure of the third slider, and the slide rail extends into the slide hole.

3. The mold for extracting the side core in sections according to claim 1, characterized in that: The third slider is provided with an elastic positioning member, the elastic positioning member passes through the bottom wall of the third slider, the bottom surface of the first slider is provided with a first positioning groove, and the rear template is provided with a second positioning groove; In the initial state, the lower end of the elastic positioning member extends into the second positioning groove. When the first sliding block slides outward a certain distance, the upper end of the elastic positioning member extends into the first positioning groove, and the lower end of the elastic positioning member is away from the second positioning groove.

4. The mold for extracting the side core in stages according to claim 3, characterized in that: The elastic positioning member includes a first fixing block, a first positioning block and a first spring; The first fixing block is arranged on the bottom wall of the third sliding block, and a through hole is arranged on the first fixing block; The first positioning block is arranged on the first fixing block, the lower end of the first positioning block passes through the through hole and extends into the second positioning groove, and a blind hole is arranged on the first positioning block; The first spring is disposed in the blind hole of the first positioning block, one end of the first spring abuts against the first positioning block, and the other end of the first spring abuts against the first fixing block.

5. The mold for extracting the side core in stages according to claim 1, characterized in that: A first limiting column is disposed on the inner side wall of the third sliding block, a second limiting groove is disposed on the outer side wall of the first sliding block, and the first limiting column extends into the second limiting groove.

6. The mold for extracting the side core in stages according to claim 1, characterized in that: The rear template is provided with a fixing seat, the cylinder is arranged on the fixing seat, the fixing seat is provided with a first sensor, the first sliding block is provided with a first connecting rod, the first connecting rod is sleeved with a first blocking ring, and the first blocking ring is used to trigger the first sensor.

7. The mold for extracting the side core in stages according to claim 6, characterized in that: A second sensor is also provided on the fixing seat, a second connecting rod is provided on the first limiting block, a second blocking ring is sleeved on the second connecting rod, and the second blocking ring is used to trigger the second sensor.

8. The mold for extracting the side core in stages according to claim 1, characterized in that: An elastic limiting member is provided on the rear template, a third limiting groove is provided at the bottom of the third sliding block, the elastic limiting member extends into the third limiting groove, an extrusion rod is provided on the connecting block, and the extrusion rod is located above the elastic limiting member. When the extrusion rod is driven by the connecting block to move a certain distance, the extrusion rod contacts the elastic limiting member and squeezes the elastic limiting member to move downward.

9. The mold for extracting the side core in stages according to claim 8, characterized in that: The elastic limiting member includes a second fixing block, a second limiting block and a second spring; The second fixing block is arranged on the rear template, and a through hole is provided on the second fixing block; The second limiting block is arranged on the second fixing block, the upper end of the second limiting block passes through the through hole and extends into the third limiting groove, and a blind hole is arranged on the second limiting block, and a third inclined surface is arranged on the top of the second limiting block; The lower surface of the end of the extrusion rod is provided with an extrusion protrusion, and the two opposite sides of the extrusion protrusion are provided with a fourth inclined surface, and the fourth inclined surface corresponds to the third inclined surface; The second spring is arranged in the blind hole of the second limiting block, one end of the second spring abuts against the second limiting block, and the other end of the second spring abuts against the rear template.

10. The mold for extracting the side core in stages according to claim 1, characterized in that: The front template is provided with a third limiting block, the top surface of the first limiting block is provided with a fourth limiting groove, and the lower end of the third limiting block extends into the fourth limiting groove.

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