Novel mold structure with inclined ejector and ejector pin plate in sliding block
By introducing a locking mechanism and hydraulic cylinder drive into the mold, the movement sequence of the ejector plate and the inclined ejector is controlled, which solves the problem of uncoordinated movement sequence during mold demolding, achieves precise demolding, and improves product quality and success rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-20
AI Technical Summary
During the mold demolding process, the timing of the movement of the inclined ejector, ejector plate and slider is difficult to control precisely, which can easily lead to uncoordinated movements, resulting in interference, jamming, product tearing or damage, and affecting the demolding success rate and product quality.
A novel mold structure with an inclined ejector and ejector plate inside the slider is designed. The movement sequence of the ejector plate is controlled by the buckling mechanism to ensure that the inclined ejector disengages from the undercut first and then the ejector plate ejects the product. The movement of the large slider is driven by a hydraulic cylinder and guided by the inclined ejector seat to achieve precise demolding.
This effectively prevents product damage, improves demolding success rate and product yield, and ensures a smooth demolding process.
Smart Images
Figure CN224012783U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of molds, in particular to a novel mold structure with inclined ejection pins and ejector sleeves in a sliding block. BACKGROUND
[0002] There are various mold stripping methods, the most traditional one being the ejector pin stripping method, which directly pushes the product with the ejector pin and is suitable for simple-structured products without lateral undercut, but the ejector pin mark is easy to be left and the thin-walled part may be deformed. The push plate stripping method relies on the push plate matched with the product shape to apply uniform force, is often used for precise thin-walled and deep-cavity products, and can avoid local stress concentration, but the push plate needs to be precisely matched, the flash is easy to be generated due to wear and tear, and the push plate cannot deal with the undercut. The sliding block stripping method solves the stripping problem of the lateral undercut of the product by driving the lateral sliding block through the inclined guide column and the oil cylinder, but the sliding block occupies a large space and the multiple sliding blocks are prone to be stuck. The inclined ejection pin stripping method can deal with the inner undercut of the product, and is realized by the movement of the inclined ejection pin under the action of the inclined guide rail along with the ejector sleeve, but the inclined ejection pin is prone to wear and tear, the guide requirement is high, and the product is prone to be damaged due to improper ejection sequence.
[0003] However, during the stripping process, the movement timing of the inclined ejection pin, the ejector sleeve and the sliding block is difficult to be accurately controlled, and the action is prone to be uncoordinated, so that the inclined ejection pin cannot be separated from the product undercut structure as expected, if the inclined ejection pin, the ejector sleeve and the sliding block are out of synchronization, the interference between the parts will be caused, the inclined ejection pin is stuck, the product is damaged or broken, and the stripping success rate and the product quality are affected.
[0004] Therefore, it is necessary to provide a novel mold structure with inclined ejection pins and ejector sleeves in a sliding block to solve the above problems.
[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, it can contain information which does not constitute the prior art. CONTENT OF THE UTILITY MODEL
[0006] The utility model aims at providing a novel mold structure with inclined ejection pins and ejector sleeves in a sliding block to solve the problems in the background.
[0007] The technical scheme adopted by the application to solve the technical problems is as follows:
[0008] A novel mold structure with inclined ejection pins and ejector sleeves in a sliding block, comprising a large sliding block, the large sliding block comprising an inclined ejection pin, a sliding block insert, a sliding block seat one and a sliding block seat two, the sliding block insert, the sliding block seat one and the sliding block seat two being assembled by screws, the inclined ejection pin being fixedly installed in the sliding block insert and extending into the cavity between the sliding block seat one and the sliding block seat two;
[0009] An ejector sleeve, the ejector sleeve being arranged in the cavity, and slots being formed in the two sides of the ejector sleeve.
[0010] The ejector mechanism is used to connect the ejector plate with the slide block pressing strip, and the slide block pressing strip is fixedly installed on the two sides of the slide block seat 2;
[0011] The power mechanism is fixedly installed on the side wall of the slide block seat 2, and the large slide block is driven to move by the power mechanism.
[0012] Preferably, the ejector plate comprises an ejector face plate and an ejector bottom plate, the ejector face plate is fixedly installed with the ejector bottom plate through screws, and the two inner sides of the ejector face plate and the ejector bottom plate are respectively provided with a missing slot.
[0013] Preferably, the ejector mechanism comprises a hook and a pressing block, one end of the hook is arranged in the missing slot, the pressing block is installed in the slide block pressing strip and is fixedly installed with the slide block pressing strip, a sliding groove is arranged on the side wall of the pressing block, and the other end of the hook is slidably connected in the sliding groove.
[0014] Preferably, one side of the hook exposed outside the ejector face plate and the ejector bottom plate is provided as an inclined surface, and one side of the sliding groove is provided as an inclined surface.
[0015] Preferably, the power mechanism comprises a cylinder fixing plate and a cylinder, the cylinder is fixedly installed on the side wall of the cylinder fixing plate, the telescopic shaft end of the cylinder is fixedly installed with the slide block seat 1 and the slide block seat 2, and the cylinder fixing plate is fixedly installed on the bottom die.
[0016] Preferably, the inside of the ejector face plate and the ejector bottom plate is provided with an inclined ejector seat, and the end of the inclined ejector is arranged in the inclined ejector seat.
[0017] The beneficial effects of the present application are as follows:
[0018] By adding the ejector mechanism, at the initial stage of mold opening, the hook is fixed on the ejector plate and clamped on the slide block pressing strip, so that the ejector plate does not temporarily follow the movement of the large slide block, when the inclined ejector is separated from the reverse buckle, the pressing block moves to press the hook back, so that the hook is separated from the slide block pressing strip, at this time, the large slide block drives the ejector plate to continue to move, and the inclined ejector is completely separated from the product, according to the time sequence control, it is ensured that the inclined ejector is separated from the reverse buckle first, and then the product is ejected by the ejector plate, so that the product is effectively prevented from being damaged, and the yield of the product is improved.
[0019] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0020] The drawings accompanying the specification of the present application form a part of the specification and serve to further illustrate the illustrative embodiments of the present application and to explain the principles of the present application, but do not limit the present application.
[0021] In the drawings:
[0022] Figure 1 It is the whole schematic view of a novel mold structure of the sliding block with inclined roof and thimble plate of the utility model;
[0023] Figure 2 It is the whole schematic view of a novel mold structure of the utility model; Figure 1 The cross-sectional view enlarged structure schematic view of A in the middle;
[0024] Figure 3 It is the whole schematic view of a novel mold structure of the utility model; Figure 1 The side cross-sectional view structure schematic view of the utility model.
[0025] Among them, the reference signs in the drawing:
[0026] 1, big sliding block;11, inclined roof;12, sliding block insert;13, sliding block seat one;14, sliding block seat two;
[0027] 2, thimble plate;21, thimble faceplate;22, thimble bottom plate;
[0028] 3, buckle mechanism;31, hook;32, pressing block;321, sliding groove
[0029] 4, power mechanism;41, oil cylinder fixed plate;42, oil cylinder;
[0030] 5, inclined roof seat;
[0031] 6, sliding block pressing strip;
[0032] 7, bottom die. DETAILED DESCRIPTION
[0033] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
[0034] In order to make the person in the technical field better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
[0035] Please refer to Figures 1-3 The embodiments provided by the utility model:
[0036] The utility model provides a new mould structure with inclined top and ejector plate in slider, which comprises a big slider 1, the big slider 1 comprises inclined top 11, slider insert 12, slider seat one 13 and slider seat two 14, slider insert 12, slider seat one 13 and slider seat two 14 are assembled through screw fastening, inclined top 11 is fixedly installed in slider insert 12 and extends to the cavity between slider seat one 13 and slider seat two 14,
[0037] Slider insert 12, inclined top 11, slider seat one 13 and slider seat two 14 are assembled into a whole through screw fastening and form the structure of big slider 1, inclined top 11 is fixed in slider insert 12, when the whole big slider 1 moves, inclined top 11 will move along with big slider 1, inclined top 11 extends to the cavity between slider seat one 13 and slider seat two 14, which provides a certain movement space and support for inclined top 11, big slider 1 is one of the main moving parts of the mould, and its movement drives inclined top 11 to move. Inclined top 11 is used to handle the reverse-docking structure of the product during demoulding, and is driven by big slider 1 so as to accurately reach the corresponding position for demoulding operation, and the assembly structure of slider insert 12, slider seat one 13 and slider seat two 14 ensures the integrity and stability of big slider 1 and ensures the accuracy of inclined top 11 during movement.
[0038] Ejector plate 2 is arranged in the cavity, the both sides of ejector plate 2 are provided with notches, ejector plate 2 is connected with slider pressing strip 6 through buckle mechanism 3, and slider pressing strip 6 is fixedly installed on the both sides of slider seat two 14.
[0039] Specifically, ejector plate 2 comprises ejector face plate 21 and ejector bottom plate 22, ejector face plate 21 is fixedly installed with ejector bottom plate 22 through screws, the both inner sides of ejector face plate 21 and ejector bottom plate 22 are provided with notches, buckle mechanism 3 comprises catch 31 and pressing block 32, one end of catch 31 is arranged in the notch, pressing block 32 is installed in slider pressing strip 6 and is fixedly installed with slider pressing strip 6, the side wall of pressing block 32 is provided with sliding groove, the other end of catch 31 is slidably connected in the sliding groove, the side of catch 31 exposed outside ejector face plate 21 and ejector bottom plate 22 is provided with inclined surface, and one side of sliding groove is provided with inclined surface.
[0040] In the initial stage of mold opening, the clamping hook 31 is clamped on the slide block 6, so that the ejector plate 2 is temporarily fixed and does not follow the movement of the large slide block 1. When the large slide block 1 moves, the pressing block 32 moves together. Because the sliding groove of the clamping hook 31 and the pressing block 32 is matched through the inclined surface, with the movement of the pressing block 32, the pressing block 32 will press the clamping hook 31 back, so that the clamping hook 31 is separated from the slide block 6, thereby releasing the locking state of the ejector plate 2. The ejector plate 2 plays a role in ejecting the product during demolding. The setting of the ejection mechanism 3 is to control the timing of the movement of the ejector plate 2, to ensure that the inclined ejector 11 first completes the action of separating from the undercut after the ejection mechanism 3 starts to move, to avoid the problem that the ejector plate 2 moves too early and causes demolding interference, and to ensure the smooth progress of the demolding process.
[0041] The inclined ejector seat 5 is arranged in the inside of the ejector face plate 21 and the ejector bottom plate 22, and the end of the inclined ejector 11 is arranged in the inclined ejector seat 5. The inclined ejector seat 5 provides a guiding effect for the inclined ejector 11. When the large slide block 1 moves, the inclined ejector 11 moves along the track defined by the inclined ejector seat 5 under the constraint of the inclined ejector seat 5, and moves obliquely upward, thereby realizing the separation of the inclined ejector 11 from the product undercut, ensuring that the inclined ejector 11 can accurately separate from the undercut structure of the product, and avoiding the problem that the product is damaged or the demolding fails due to the inaccurate movement direction of the inclined ejector 11.
[0042] The power mechanism 4 is fixedly installed on the side wall of the slide block seat two 14. The large slide block 1 is driven to move by the power mechanism 4. The power mechanism 4 includes a cylinder 42 fixing plate 41 and a cylinder 42. The cylinder 42 is fixedly installed on the side wall of the cylinder 42 fixing plate 41. The extension shaft end of the cylinder 42 is fixedly installed on the slide block seat one 13 and the slide block seat two 14. The cylinder 42 fixing plate 41 is fixedly installed on the bottom die 7. The cylinder 42 is fixed on the cylinder 42 fixing plate 41. The cylinder 42 fixing plate 41 is fixed on the bottom die 7, thereby ensuring the stability of the cylinder 42. The extension shaft end of the cylinder 42 is fixedly connected with the slide block seat one 13 and the slide block seat two 14. When the cylinder 42 works, the extension and retraction movement of the extension shaft is converted into the linear movement of the large slide block 1, thereby driving the large slide block 1 to move rightward or leftward, providing power for the movement of the large slide block 1, and being the power source for the demolding process of the whole mold.
[0043] The working principle is as follows: when the mold is opened, the cylinder 42 of the power mechanism 4 starts to work. The extension shaft of the cylinder 42 pushes the large slide block 1 to move rightward. Because the clamping hook 31 of the ejection mechanism 3 is clamped on the slide block 6, the ejector plate 2 is temporarily locked and does not move together with the large slide block 1. During the rightward movement of the large slide block 1, the inclined ejector 11 moves upward under the guiding effect of the inclined ejector seat 5, and gradually separates from the undercut structure of the product.
[0044] With the continuous movement of the large slider 1, the pressing block 32 installed on the slider pressing strip 6 also moves, and when the inclined top 11 is about to completely separate from the reverse buckle, the sliding groove of the pressing block 32 is in contact with the inclined surface of the catch 31, the pressing block 32 presses the catch 31 back, so that the catch 31 is separated from the slider pressing strip 6, and the locking state of the ejector plate 2 is released;
[0045] At this time, the large slider 1 continues to move to the right, driving the already unlocked ejector plate 2 to move together, the ejector plate 2 pushes the product, so that the inclined top 11 completely separates from the product, and finally completes the entire demolding process.
[0046] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A novel mold structure with an inclined ejector and an ejector plate inside the slider, characterized in that: Includes a large slider (1), which includes a slanted top (11), a slider insert (12), a slider seat one (13), and a slider seat two (14). The slider insert (12), slider seat one (13), and slider seat two (14) are assembled by fastening screws. The slanted top (11) is fixedly installed in the slider insert (12) and extends into the cavity between slider seat one (13) and slider seat two (14). Ejector plate (2), the ejector plate (2) is disposed in the cavity, and notches are provided on both sides of the ejector plate (2); The fastening mechanism (3) is used to engage the pin plate (2) with the slider pressure strip (6), which is fixedly installed on both sides of the slider seat (14). The power mechanism (4) is fixedly installed on the side wall of the slider seat (14), and the large slider (1) is driven to move by the power mechanism (4).
2. The novel mold structure with an inclined ejector and an ejector plate inside the slider according to claim 1, characterized in that: The ejector plate (2) includes an ejector panel (21) and an ejector base plate (22). The ejector panel (21) is fixedly installed to the ejector base plate (22) by screws. The ejector panel (21) and the ejector base plate (22) are respectively provided with notches on their inner sides.
3. A novel mold structure with an inclined ejector and an ejector plate inside the slider according to claim 2, characterized in that: The fastening mechanism (3) includes a hook (31) and a pressure block (32). One end of the hook (31) is placed in a notch. The pressure block (32) is installed in the slider pressure strip (6) and is fixedly installed with the slider pressure strip (6). The side wall of the pressure block (32) is provided with a sliding groove. The other end of the hook (31) slides and engages in the sliding groove.
4. A novel mold structure with an inclined ejector and an ejector plate inside the slider according to claim 3, characterized in that: The hook (31) exposed on the outside of the ejector plate (21) and ejector base plate (22) is set as an inclined surface on one side, and the slide groove is set as an inclined surface on one side.
5. A novel mold structure with an inclined ejector and an ejector plate inside the slider according to claim 1, characterized in that: The power mechanism (4) includes a cylinder fixing plate (41) and a cylinder (42). The cylinder (42) is fixedly installed on the side wall of the cylinder fixing plate (41). The end of the telescopic shaft of the cylinder (42) is fixedly installed with the first slider seat (13) and the second slider seat (14). The cylinder fixing plate (41) is fixedly installed on the bottom mold (7).
6. A novel mold structure with an inclined ejector and an ejector plate inside the slider according to claim 2, characterized in that: The ejector plate (21) and ejector base plate (22) are provided with inclined ejector seats (5), and the end of the inclined ejector (11) is placed in the inclined ejector seat (5).