Pitched roof demoulding switch structure

Abstract

The utility model relates to the technical field of injection molds, and discloses a pitched roof demolding switch structure which comprises a movable mold and a main side loose core connected to the movable mold in a sliding mode, a plurality of auxiliary side loose cores are connected to the main side loose core, and a driving mechanism used for driving the auxiliary side loose cores to conduct sliding demolding relative to the main side loose core is connected between the main side loose core and the auxiliary side loose cores. The movable mold is connected with a locking mechanism used for locking the driving mechanism, the main side loose core is connected with a sequence control mechanism used for driving the locking mechanism to unlock, and when the main side loose core slides relative to the movable mold for demolding, the sequence control mechanism controls the unlocking time of the locking mechanism to be later than the demolding time of the auxiliary side loose core. According to the utility model, the problems of complex structure and poor control stability of a control structure for controlling synchronous demolding of a main side core-pulling and an auxiliary side core-pulling in a mold with a secondary side core-pulling function in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a slanted ejector release switch structure. Background Technology

[0002] For the attached Figure 1 The illustrated automotive drawer structure includes a drawer body and a blind hole groove located at the rear end of the drawer body. Several structures are disposed within the blind hole groove, forming connecting seats or connecting structures for connection with other components within the vehicle. Currently, when injection molding this type of drawer, the blind hole groove structure allows for its formation by incorporating a side core-pulling structure during mold design. Furthermore, referring to Figure 2, because some structures within the blind hole groove have undercuts, and the direction of these undercuts differs from the mold opening direction used for forming the side core-pulling mechanism, a secondary side core-pulling structure is required to form the undercuts.

[0003] Currently, for mold structures with secondary side core pulling, a separate drive or power structure is required to drive the secondary side core pulling for demolding. Furthermore, the demolding process of the secondary side core pulling and the blind hole groove must be synchronized. However, the blind hole groove itself is relatively small, and the number of undercuts within it is large. Conventional demolding structures cannot handle the demolding of multiple undercuts and the blind hole groove. To address this, the inventors designed a main side core pulling for demolding the blind hole groove, and simultaneously designed multiple corresponding secondary side core pullings for the multiple undercut structures. During demolding, when the main side core pull is demolded, a drive mechanism drives all secondary side core pullings to slide relative to the main side core pull, allowing the secondary side core pullings to demold synchronously. This effectively simplifies the mold structure and reduces the overall cost of the mold. However, in practical applications, the existing mold structure's control structure for controlling the synchronous demolding of the main and secondary side core pullings is complex. Therefore, it is necessary to design a simple and stable switching structure to control the entire demolding action. Utility Model Content

[0004] The present invention aims to provide a slanted ejector release switch structure to solve the problems of complex structure and poor control stability in the existing control structure for controlling the synchronous demolding of the main side core pulling and the secondary side core pulling of molds with secondary side core pulling.

[0005] To solve the above problems, the present invention adopts the following technical solution: a slanted ejector release switch structure, including a moving mold and a main side core puller slidably connected to the moving mold, a plurality of secondary side core pullers connected to the main side core puller, a driving mechanism for driving the secondary side core pullers to slide and release relative to the main side core puller connected between the main side core puller and the secondary side core pullers, a locking mechanism for locking the driving mechanism connected to the moving mold, and a sequence control mechanism for driving the locking mechanism to unlock connected to the main side core puller, wherein when the main side core puller slides and releases relative to the moving mold, the sequence control mechanism controls the locking mechanism to unlock at a time later than the time of the secondary side core puller release.

[0006] The principle of this solution is as follows: the moving mold and the fixed mold are used to form the cavity of the main body of the drawer. The main side core pull, in cooperation with the moving mold, is used to form the cavity of the blind hole slot of the drawer. Several secondary side core pulls connected to the main side core pull, in cooperation with the main side core pull structure, are used to form the cavity of multiple undercuts. The corresponding number of secondary side core pulls is set according to the actual number of undercuts in the blind hole slot, so that the forming of all undercuts can be completed. In addition, this application provides a driving mechanism, which is used to drive the secondary side core pulls to slide relative to the main side core pull, so that the secondary side core pulls can complete the demolding action. In actual application, when the main side core pulls slide relative to the moving mold to perform one demolding, it is only necessary to control the driving mechanism to drive the secondary side core pulls to slide relative to the main side core pulls. At the same time as the main side core pulls complete one demolding, the secondary side core pulls can simultaneously demold a second time under the action of the driving mechanism, ensuring that the main side core pulls and secondary side core pulls can be demolded synchronously.

[0007] Meanwhile, in this application, a locking mechanism is connected to the moving mold. The locking mechanism is used to lock the driving mechanism. When the main side core pull slides relative to the moving mold, the locking mechanism prevents the driving mechanism from sliding with the main side core pull, thus driving the secondary side core pull to slide relative to the main side core pull and demold. After the main side core pull slides relative to the moving mold and completes demolding, and the secondary side core pull also completes demolding under the action of the driving mechanism, the sequential control mechanism controls the locking mechanism to unlock, so that the secondary side core pull and the driving mechanism can demold from the moving mold. Then, the secondary side core pull and the driving mechanism continue to slide with the main side core pull relative to the moving mold. After the main side core pull, the secondary side core pull, and the driving mechanism exit the blind hole groove, the demolding process is completed. At this time, the formed drawer can be ejected from the moving mold.

[0008] The beneficial effects of this plan are:

[0009] For structures used to form blind slots and multiple undercuts, the secondary demolding structure in the mold suffers from poor stability and complex structure. This application addresses this by, on one hand, setting a driving mechanism to simultaneously demold all secondary core pulls, effectively simplifying the demolding structure and improving the consistency and stability of the secondary demolding process. On the other hand, this application uses a locking mechanism and a sequence control mechanism to control the driving mechanism to act in a fixed sequence, ensuring that the main and secondary core pulls can complete demolding simultaneously. After demolding, the locking mechanism can be unlocked promptly via the sequence control mechanism for subsequent product ejection. This simplifies the entire secondary demolding structure and makes the demolding process precise and controllable.

[0010] Preferably, as an improvement, the locking mechanism includes a latch and a locking tongue. The latch is fixedly connected to the moving mold, and the locking tongue is slidably connected to the main side core puller. The latch is provided with a blocking part for blocking the locking tongue. An elastic reset member is connected between the locking tongue and the main side core puller. When the locking tongue is not subjected to external force, the locking tongue abuts against the blocking part under the elastic force of the elastic reset member.

[0011] In this design, a blocking part is installed on the locking mechanism. When the main side core pull slides relative to the moving mold and begins demolding, the blocking part blocks the locking tongue, preventing the drive mechanism from sliding along with the main side core pull. This allows the drive mechanism to stably and accurately drive the secondary side core pull to slide relative to the main side core pull for demolding. When both the main and secondary side core pulls have completed demolding, the locking tongue is driven to slide relative to the locking mechanism using a sequential control mechanism. When the locking tongue slides to the point of disengagement from the blocking part, unlocking can be completed quickly. At this time, the locking tongue, drive mechanism, and secondary side core pull can continue to slide along the demolding direction with the main side core pull, making room for the subsequent ejection of the drawer product. The locking mechanism has a simple structure and a stable locking effect.

[0012] Preferably, as an improvement, the sequence control mechanism includes an unlocking seat fixedly connected to the main side pull core, the unlocking seat having an unlocking ramp, and the lock tongue having a mating ramp that cooperates with the unlocking ramp.

[0013] In this design, the unlocking ramp and the mating ramp engage with each other. When the unlocking seat follows the main side core pull for demolding, before the main side core pull and the secondary side core pull are completely demolded, the blocking part acts as a locking mechanism against the bolt, preventing the drive mechanism from moving with the main side core pull. The drive mechanism can then drive the secondary side core pull to slide relative to the main side core pull for demolding. After both the main side core pull and the secondary side core pull are completely demolded, as the main side core pull continues to slide relative to the moving mold, it drives the unlocking seat to slide until it contacts the bolt. With the engagement of the unlocking ramp and the mating ramp, the unlocking seat pushes the bolt pull into the main side core pull and automatically disengages from the blocking part, thus achieving a convenient and stable unlocking process. The structure is simple and the unlocking process is precise and controllable.

[0014] Preferably, as an improvement, the driving mechanism includes an ejector plate, a slide block, and an inclined square hole. The ejector plate is slidably connected to the main side core puller, the inclined square hole is disposed on the main side core puller, the slide block is slidably connected to the ejector plate, and a square rod is fixedly connected to the secondary side core puller. The square rod is slidably engaged with the inclined square hole, and the end of the square rod away from the secondary side core puller is rotatably connected to the slide block.

[0015] In this design, a square rod with a square cross-section is connected to the secondary side core puller, which is easy to process and has a stable structure. At the same time, a square sliding hole is opened on the main side core puller to cooperate with the square rod. The square sliding hole not only provides guidance for the sliding of the square rod, but also prevents the square rod from rotating relative to the main side core puller during the sliding process. When the ejector plate slides relative to the main side core puller, under the force of the inclined square hole on the square rod, the secondary side core puller can slide and translate along the corresponding undercut direction in the blind hole groove to demold. Moreover, the end of the square rod connected to the slide rotates relative to the slide, and the slide automatically slides relative to the ejector plate under the force of the square rod to complete the translational dimension generated during the demolding process of the secondary side core puller.

[0016] Therefore, by using the drive mechanism in this solution, an ejector plate that can slide relative to the main side core pull can simultaneously drive all the secondary side core pulls corresponding to the undercuts to demold smoothly, avoiding the need to set a demolding drive mechanism for each secondary side core pull, effectively simplifying the mold structure and improving the stability and consistency of the demolding process; in addition, through the cooperation of the square rod and the inclined square hole, and the sliding cooperation of the slide block and the ejector plate, during the sliding of the ejector plate relative to the main side core pull, different secondary side core pulls can be driven to slide in different directions, thereby simultaneously forming undercut structures in different directions, resulting in high demolding efficiency and precise demolding.

[0017] Preferably, as an improvement, the ejector plate has a sliding groove, and a pressure plate is fixedly connected to the ejector plate. The pressure plate and the sliding groove form an active space for the locking tongue to slide. The outer wall of the ejector plate is provided with an extension groove that communicates with the active space. The width of the extension groove is smaller than the width of the active space. The locking tongue is provided with a protrusion that slides with the extension groove.

[0018] In this design, by setting up an active space, the locking tongue slides within the active space during use, making the sliding of the locking tongue relative to the ejector plate more precise and stable. Furthermore, by utilizing the sliding cooperation between the protrusion and the extension groove, when the ejector plate is locked, the protrusion extends out of the extension groove and cooperates with the blocking part. When the ejector plate is unlocked, the protrusion retracts into the extension groove, and the locking effect of the blocking part on the protrusion is automatically released, ensuring that both locking and unlocking can be completed stably.

[0019] Preferably, as an improvement, the elastic reset member includes one or more reset springs, the ejector plate has a number of first positioning holes equal to the number of reset springs and corresponding one-to-one, the latch has a second positioning hole opposite to the first positioning hole, one end of the reset spring is located in the first positioning hole and the other end is located in the second positioning hole.

[0020] In this solution, a return spring is used as an elastic reset component, and an appropriate number of return springs are set according to actual needs to effectively ensure the stability and accuracy of the lock tongue reset. At the same time, a first positioning hole and a second positioning hole are set to limit the two ends of the return spring, thereby improving the stability of the return spring during use.

[0021] Preferably, as an improvement, the buckle machine is provided with a reset mechanism for driving the ejector plate to reset. The reset mechanism includes a reset protrusion fixedly connected to the buckle machine, and the ejector plate is provided with a reset plane that mates with the plane of the reset protrusion.

[0022] In this solution, by setting a reset mechanism on the clamping machine, when the mold is closed again after one product molding is completed, the reset mechanism can drive the ejector plate to reset, so that the secondary core pull is reset to the state of cooperating with the main core pull, thus avoiding the secondary core pull being in the demolding state and being damaged by collision during the mold closing process.

[0023] Preferably, as an improvement, the buckle has a sliding groove, and the unlocking seat slides in conjunction with the sliding groove.

[0024] In this solution, a sliding groove is set on the latch to slide and cooperate with the unlocking seat. The sliding groove provides guidance and limit for the sliding of the unlocking seat, which effectively improves the stability of the unlocking seat during the sliding process relative to the latch and ensures that the unlocking seat can accurately cooperate with the protrusion to drive unlocking.

[0025] Preferably, as an improvement, the number of locking mechanisms is two, with the two locking mechanisms located on both sides of the main side core puller, and each locking mechanism corresponding to the sequence control mechanism.

[0026] In this solution, two locking mechanisms and two corresponding sequence control mechanisms are set up, so that both sides of the main side core pulling are equipped with locking mechanisms and sequence control mechanisms, which improves the uniformity of force during the demolding process of the drive mechanism driving the secondary side core pulling, and makes the demolding of the secondary side core pulling more stable.

[0027] Preferably, as an improvement, a slider body is fixedly connected to the main side core puller, and a sliding space is provided between the slider body and the main side core puller, with the drive mechanism slidably connected within the movable space.

[0028] In this solution, the slider body is fixed on the main side core puller, and a sliding space is formed between the slider body and the main side core puller. The drive mechanism is slidably connected in the sliding space. The sliding space provides protection for the sliding of the drive mechanism, avoids other components from affecting the operation of the drive mechanism, and improves the stability of the demolding process. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the formed drawer in this embodiment.

[0030] Figure 2 is Figure 1 A magnified view of a portion of point A in the middle.

[0031] Figure 3 is a schematic diagram of the mold-closed state in Embodiment 1 of the present invention.

[0032] Figure 4 is a schematic diagram of the backward view of the hidden drawer in Embodiment 1 of the present invention.

[0033] Figure 5 is a schematic diagram of the connection between the main side core puller and the slider body in Embodiment 1 of the present invention.

[0034] Figure 6 is a schematic diagram of the slider body in Embodiment 1 of the present invention.

[0035] Figure 7 is a schematic diagram of the connection between the ejector plate and all secondary side core pullers in Embodiment 1 of the present invention.

[0036] Figure 8 is a schematic diagram of the connection between one of the secondary side core pullers and the slide block in Embodiment 1 of the present invention.

[0037] Figure 9 is a schematic diagram of the connection between the latch, locking tongue, and ejector plate in Embodiment 1 of the present invention.

[0038] Figure 10 This is a partial schematic diagram of the connection between the locking tongue and the ejector plate in Embodiment 1 of the invention (the pressure plate has been hidden).

[0039] Figure 11 This is an exploded view of the connection between the locking tongue, the ejector plate, and the return spring in Embodiment 2 of this utility model.

[0040] Figure 12 This is an exploded view from another perspective of the connection between the locking tongue, the ejector plate, and the return spring in Embodiment 2 of this utility model. Detailed Implementation

[0041] The following detailed description illustrates the specific implementation method:

[0042] The reference numerals in the accompanying drawings include: drawer body 1, blind hole slot 101, inverted latch 102, main side pull core 2, slider body 3, sliding space 301, ejector plate 4, guide groove 401, moving space 402, first positioning hole 403, guide post 5, hydraulic cylinder 6, drive block 7, secondary side pull core 8, slide block 9, square rod 10, protrusion 1001, reference seat 11, latch 12, blocking protrusion 1201, reset slope 12011, sliding groove 1202, locking tongue 13, protrusion 1301, mating slope 13011, second positioning hole 1302, pressure plate 14, unlocking seat 15, unlocking slope 1501, reset spring 16, reset protrusion 17.

[0043] One type of drawer structure used in automobiles in the prior art is as follows: Figure 1 and Figure 2 As shown, the drawer includes a drawer body 1 and a blind hole groove 101 located at the rear end of the drawer body. The blind hole groove 101 contains several connecting structures with undercuts 102, the direction of which differs from the opening direction of the blind hole groove 101. When forming the drawer structure, a side pull core along the length of the drawer is required to form the blind hole groove 101, and a secondary side pull core structure along the direction of the undercuts 102 is also required to form the undercuts 102.

[0044] Example 1

[0045] This embodiment is shown in Figure 3: a sloping ejector switch structure includes a moving mold (the moving mold structure is not shown in Figure 3) and a main side core pull 2 ​​that is laterally slidably connected to the moving mold. The moving mold and the fixed mold in the prior art are used to form the cavity of the drawer structure. The main side core pull 2 ​​cooperates with the moving mold and the fixed mold to form the blind hole groove 101. Figure 4 and Figure 7 The main side core pull 2 ​​is connected to several secondary side core pulls 8. The number of secondary side core pulls 8 is equal to the number of inverted latches 102 in the drawer and they are set one-to-one. The main side core pull 2 ​​and the secondary side core pulls 8 are connected by a drive mechanism for driving the secondary side core pulls 8 to slide and demold relative to the main side core pull 2.

[0046] Combination Figure 3 and Figure 6 The right side of the main pull core 2 is fixedly connected to the slider body 3 by screws. The main body of the slider body 3 is in the shape of a "コ". Figure 5 The slider body 3 and the main side core puller 2 form a sliding space 301, and the drive mechanism is laterally slidably connected within the sliding space 301. In this embodiment, the drive mechanism includes an ejector plate 4, a slide block 9, and an inclined square hole. The ejector plate 4 is slidably connected to the main side core puller 2. To control the smooth and precise lateral sliding of the ejector plate 4, combined with... Figure 7A horizontally arranged guide post 5 is fixedly connected to the slider body 3 by screws. A circular sliding hole is provided on the ejector plate 4 to slide with the guide post 5. The sliding engagement between the guide post 5 and the circular sliding hole provides guidance for the sliding of the ejector plate 4. To improve the stability of the guidance, at least two guide posts 5 are provided. Furthermore, combined with… Figure 3 and Figure 4 In this embodiment, a hydraulic cylinder 6 is fixedly connected to the moving mold by screws, and a drive block 7 is fixedly connected to the output shaft of the hydraulic cylinder 6 by screws. The drive block 7 is fixedly connected to the slider body 3 by screws. The hydraulic cylinder 6 drives the slider body 3 and the main side core pull 2 ​​to slide relative to the moving mold, so as to control the main side core pull 2 ​​to be demolded smoothly.

[0047] Combination Figure 4 , Figure 7 and Figure 8 An inclined square hole is formed on the main side core pull 2. The slide block 9 is slidably connected to the ejector plate 4. A square rod 10 is fixedly connected to the secondary side core pull 8. The square rod 10 is slidably engaged with the inclined square hole. The end of the square rod 10 away from the secondary side core pull 8 is rotatably connected to the slide block 9. Regarding the specific method of sliding connection between the slide block 9 and the ejector plate 4, in this embodiment, a guide groove 401 is formed on the ejector plate 4 to cooperate with the slide block 9. The slide block 9 is slidably connected in the guide groove 401, and the sliding direction of the slide block 9 along the guide groove 401 is the same as the direction of the corresponding formed undercut 102. The square rod 10 is integrally formed on the secondary side core puller 8. In order to facilitate installation, reduce processing difficulty, and control the precise sliding of the slide block 9, a reference seat 11 is fixedly connected to the ejector plate 4 by screws in this embodiment. The guide groove 401 is opened on the reference seat 11, and the slide block 9 slides with the reference seat 11. The slide block 9 has an "Ω" shaped hinge groove. The end of the square rod 10 is provided with a protrusion 1001 that rotates with the hinge groove, so that the square rod 10 can be stably hinged with the slide block 9 by the cooperation of the protrusion 1001 and the hinge groove. At the same time, in this embodiment, the hinge groove and the guide groove 401 are set to be perpendicular to each other to improve the stability and accuracy of the hinge between the square rod 10 and the slide block 9.

[0048] Combination Figure 3 , Figure 7 , Figure 9 and Figure 10 The moving mold is provided with a locking mechanism for locking the ejector plate 4, and the slider body 3 is connected with a sequence control mechanism for driving the locking mechanism to unlock. When the main side core pull 2 ​​slides and demolds relative to the moving mold, the sequence control mechanism controls the locking mechanism to unlock later than the demolding time of the secondary side core pull 8. In order to improve the stability of locking and unlocking the ejector plate 4, in this embodiment, a locking mechanism and a sequence control mechanism are provided on both sides of the ejector plate 4.

[0049] Specifically, the locking mechanism in this embodiment includes a latch 12 and a locking tongue 13. The latch 12 is fixedly connected to the moving mold by screws, and the locking tongue 13 is slidably connected to the ejector plate 4. The latch 12 is provided with a blocking part to prevent the locking tongue 13 from sliding along the demolding direction of the main side core pull 2. An elastic reset member is connected between the locking tongue 13 and the main side core pull 2. When the locking tongue 13 is not subjected to external force, the locking tongue 13 abuts against the blocking part under the elastic force of the elastic reset member. In this embodiment, the blocking part is a blocking protrusion 1201 integrally formed on the latch 12. When the locking tongue 13 contacts the blocking protrusion 1201, it is locked. The latch 12 locks the ejector plate 4 by locking the locking tongue 13, preventing the ejector plate 4 from sliding along the demolding direction of the main side core pull 2. At the same time, the elastic reset member includes one or more reset springs 16. The reset springs 16 are located between the locking tongue 13 and the ejector plate 4 and exert an elastic force on the locking tongue 13. In this embodiment, there are two reset springs 16.

[0050] For the sliding connection between the locking tongue 13 and the ejector plate 4, such as Figure 9 and Figure 10 As shown, a sliding groove is formed on the ejector plate 4, and a pressure plate 14 is fixedly connected to the ejector plate 4 by screws. The pressure plate 14 is located at the top of the sliding groove, so that the pressure plate 14 and the sliding groove form an active space 402 for the locking tongue 13 to slide. The return spring 16 is located in the active space 402 and between the ejector plate 4 and the locking tongue 13. An extension groove communicating with the active space 402 is formed on the side wall of the ejector plate 4. The width of the extension groove is smaller than the width of the active space 402. A protrusion 1301 is integrally formed on the locking tongue 13. The protrusion 1301 can pass through the extension groove and extend to the outside of the ejector plate 4. After the protrusion 1301 extends to the outside of the extension groove, it can contact and abut against the blocking protrusion 1201 to lock the locking tongue 13. When the latch 12 and the protrusion 1301 are locked, the latch 12 locks the ejector plate 4.

[0051] like Figure 10 As shown, the sequence control mechanism includes an unlocking seat 15 that is fixedly connected to the slider body 3 by screws. Combined with... Figure 7 , Figure 9 and Figure 10The unlocking seat 15 is L-shaped, and the latch 12 has a sliding groove 1202. The unlocking seat 15 slides in conjunction with the sliding groove 1202. The unlocking seat 15 is provided with an unlocking ramp 1501, and the protrusion 1301 is provided with a mating ramp 13011 for mating with the unlocking ramp 1501. The mating ramp 13011 is located on the sliding path of the unlocking ramp 1501 on the unlocking seat 15. When the unlocking ramp 1501 slides to contact the mating ramp 13011, it can push the protrusion and the locking tongue 13 into the movable space 402, so that the locking tongue 13 moves away from the blocking protrusion 1201 and is no longer locked. Meanwhile, the fastener 12 is equipped with an ejector reset mechanism for driving the ejector plate 4 to reset and a locking reset mechanism for driving the protrusion to reset. The locking reset mechanism includes a reset inclined surface 12011 on the blocking protrusion 1201 away from the main side core pull 2. The reset inclined surface 12011 and the mating inclined surface 13011 are in inclined engagement. The reset inclined surface 12011 can drive the locking tongue 13 and the protrusion to reset to the state where the protrusion is blocked and locked by the blocking protrusion 1201 during the mold closing process. In addition, the ejector reset mechanism includes a reset protrusion 17 integrally formed on the unlocking seat 15. The pressure plate 14 is provided with a reset plane that mates with the reset protrusion 17 (in this embodiment, the reset plane is the outer side of the pressure plate 14). The reset plane is located on the sliding path of the reset protrusion 17 for sliding reset.

[0052] The specific implementation process is as follows:

[0053] After injection molding and pressure holding processes following mold closing, during the mold opening stage, the moving mold and fixed mold first move away from each other to demold. Then, the hydraulic cylinder 6 pushes the slider body 3 to slide relative to the moving mold along the right direction as shown in Figure 3. As the slider body 3 slides, it pulls the main side core pull 2 ​​to slide relative to the moving mold to the right, completing one demolding cycle. When the main side core pull 2 ​​is demolded, it forms the blind hole groove 101 of the drawer. At the same time as the main side core pull 2 ​​slides relative to the moving mold to the right, the blocking protrusion 1201 blocks the protrusion on the locking tongue 13 and locks it with the ejector plate 4. Since the latch 12 is fixedly connected to the moving mold, when the main side core pull 2 ​​slides relative to the moving mold, the ejector plate 4 cannot slide to the right with the main side core pull 2. At this time, the ejector plate 4 slides to the left relative to the main side core pull 2, and the distance between the ejector plate 4 and the main side core pull 2 ​​decreases. Under the pushing force of the ejector plate 4, the square rod 10 slides relative to the inclined square hole. Then, under the action of the inclined square hole, the square rod 10 rotates relative to the slide block 9, and the slide block 9 slides along the guide groove 401, so that the secondary side core pull 8 of the square rod 10 away from the ejector plate 4 moves along the direction of the corresponding undercut 102. At this time, the secondary side core pull 8 disengages from the corresponding undercut 102 and completes the secondary demolding. When the secondary side core pull 8 is demolded, the undercut 102 of the blind hole groove 101 is formed. The first demolding and the second demolding are completed simultaneously, so that the demolding process can be completed smoothly.

[0054] When the hydraulic cylinder 6 pushes the slider body 3 and the main side core puller 2 to slide relative to the moving mold in the right direction in Figure 3, the slider body 3 will also drive the unlocking seat 15 to slide synchronously. After both the main side core puller 2 and the secondary side core puller 8 have completed demolding, the hydraulic cylinder 6 continues to push the slider body 3 and the main side core puller 2 to slide relative to the moving mold. As the slider body 3 continues to slide, the unlocking inclined surface 1501 on the unlocking seat 15 contacts the mating inclined surface 13011 on the protrusion. The protrusion and the locking tongue 13 are automatically slid into the active space 402 under the pressure of the unlocking seat 15, so that the protrusion automatically disengages from the blocking protrusion 1201. At this time, the locking effect of the latch 12 on the ejector plate 4 disappears. After the ejector plate 4 is no longer locked by the latch 12, it can slide to the right along with the slider body 3 and the main side core puller 2, so that the main side core puller 2 completely exits the blind hole groove 101. When the protrusion leaves the range of action of the latch 12, under the elastic force of the return spring 16, the protrusion protrudes out of the groove again. Then, the drawer can be pushed out upward using the ejector pins in the prior art to complete one product molding.

[0055] When the mold is closed for the next product molding after one product molding cycle, the hydraulic cylinder 6 pulls the slider body 3 to slide to the left in Figure 3 (before mold closing, the slider body 3 is already at its right limit position). First, as the slider body 3 continues to reset under the action of the hydraulic cylinder 6, the reset plane of the pressure plate 14 contacts the reset protrusion 17 on the locking mechanism 12. Under the blocking action of the reset protrusion 17, the ejector plate 4 moves away from the main side core pull 2 ​​and resets. When the ejector plate 4 resets, it drives the secondary side core pull 8 to reset. Then, as the slider body 3 continues to reset, the locking mechanism... The reset slope 12011 on 12 will contact the mating slope 13011 on the protrusion. Under the squeezing force of the reset slope 12011, the protrusion slides into the active space 402. When the protrusion slides to a position that can fit and lock with the blocking protrusion 1201, the protrusion slides out of the extension groove under the elastic force of the reset spring 16, so that the protrusion resets to the state locked by the blocking protrusion 1201. Finally, after the main side core pull 2 ​​is reset, the hydraulic cylinder 6 stops driving, and all parts are reset to the mold closing state, so that the next injection molding can be carried out.

[0056] Example 2

[0057] The difference between Example 2 and Example 1 is as follows: Figure 11 and Figure 12As shown, in this embodiment, the number of first positioning holes 403 on the ejector plate 4 is equal to the number of return springs 16 and they correspond one-to-one. The locking tongue 13 has a second positioning hole 1302 that is directly opposite to the first positioning hole 403. One end of the return spring 16 is located in the first positioning hole 403 and the other end is located in the second positioning hole 1302. The first positioning hole 403 and the second positioning hole 1302 are used to position the two ends of the return spring 16 respectively, thereby improving the stability of the return spring 16 when it is working.

[0058] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A slanted ejector release switch structure, comprising a moving mold and a main side core pull slidably connected to the moving mold, wherein a plurality of secondary side core pulls are connected to the main side core pull, characterized in that: A drive mechanism for driving the secondary core pull to slide and demold relative to the main core pull is connected between the main core pull and the secondary core pull. A locking mechanism for locking the drive mechanism is connected to the moving mold, and a sequence control mechanism for driving the locking mechanism to unlock is connected to the main core pull. When the main core pull slides and demolds relative to the moving mold, the sequence control mechanism controls the locking mechanism to unlock later than the time when the secondary core pull demolds.

2. The inclined ejector release switch structure according to claim 1, characterized in that: The locking mechanism includes a latch and a locking tongue. The latch is fixedly connected to the moving mold, and the locking tongue is slidably connected to the main side core puller. The latch is provided with a blocking part for blocking the locking tongue. An elastic reset member is connected between the locking tongue and the main side core puller. When the locking tongue is not subjected to external force, the locking tongue abuts against the blocking part under the elastic force of the elastic reset member.

3. The inclined ejector release switch structure according to claim 2, characterized in that: The sequence control mechanism includes an unlocking seat fixedly connected to the main side pull core, the unlocking seat having an unlocking ramp, and the lock tongue having a mating ramp that cooperates with the unlocking ramp.

4. The inclined ejector release switch structure according to claim 2, characterized in that: The driving mechanism includes an ejector plate, a slide block, and an inclined square hole. The ejector plate is slidably connected to the main side core puller. The inclined square hole is set on the main side core puller. The slide block is slidably connected to the ejector plate. A square rod is fixedly connected to the secondary side core puller. The square rod is slidably engaged with the inclined square hole. The end of the square rod away from the secondary side core puller is rotatably connected to the slide block.

5. The inclined ejector release switch structure according to claim 4, characterized in that: The ejector plate has a sliding groove, and a pressure plate is fixedly connected to the ejector plate. The pressure plate and the sliding groove form an active space for the locking tongue to slide. The outer wall of the ejector plate is provided with an extension groove that communicates with the active space. The width of the extension groove is smaller than the width of the active space. The locking tongue is provided with a protrusion that slides with the extension groove.

6. The inclined ejector release switch structure according to claim 5, characterized in that: The elastic reset component includes one or more reset springs. The ejector plate has a number of first positioning holes that are equal to and correspond one-to-one with the number of reset springs. The latch has a second positioning hole that is directly opposite to the first positioning hole. One end of the reset spring is located in the first positioning hole and the other end is located in the second positioning hole.

7. The inclined ejector release switch structure according to claim 5, characterized in that: The fastener is equipped with a pin reset mechanism for driving the pin plate to reset and a locking reset mechanism for driving the protrusion to reset. The pin reset mechanism includes a reset protrusion fixedly connected to the fastener, and the pin plate is provided with a reset plane that mates with the plane of the reset protrusion. The locking reset mechanism includes a reset inclined surface formed on the blocking protrusion, and the reset inclined surface and the mating inclined surface are in inclined engagement.

8. The inclined ejector release switch structure according to claim 3, characterized in that: The buckle has a sliding groove, and the unlocking seat slides into the sliding groove.

9. The inclined ejector release switch structure according to claim 1, characterized in that: There are two locking mechanisms, located on both sides of the main side core puller, and each locking mechanism is equipped with the sequence control mechanism.

10. A slanted ejector release switch structure according to any one of claims 1-9, characterized in that: A slider body is fixedly connected to the main side core puller, and a sliding space is provided between the slider body and the main side core puller. The drive mechanism is slidably connected within the moving space.

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