A mold inclined ejection structure

Abstract

The application discloses a mold oblique ejection structure, which comprises an outer mold, a mounting groove is arranged on the outer mold, an inner mold is arranged in the mounting groove, the inner mold is provided with an inclined third through hole, an oblique ejection piece is arranged in the third through hole in a sliding mode, a sliding block is arranged at one end of the oblique ejection piece, a notch is arranged at the bottom of the sliding block, the bottom of the notch is provided with an inclined surface, the inclined surface is consistent with the inclined direction of the third through hole, and a pin assembly is arranged at one end of the oblique ejection piece close to the sliding block, and the pin assembly is used for limiting the sliding block when the oblique ejection piece is ejected.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to a mold inclined ejection structure. Background Technology

[0002] Injection molding, also known as injection compression molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, and the ability to automate the operation. It is suitable for mass production and molding of complex-shaped products, and offers various demolding methods, often employing vertical or angled demolding.

[0003] However, in existing technologies, the inclined ejection structure of molds is relatively complex, including a shovel insert, multiple slide inserts, a shovel, inclined guide pillars, slide seats, and slide pressure bars, etc. (e.g.) Figure 10 In existing molds, the slider slides horizontally within the slide body. When the inclined ejector and slider have undercuts that cause demolding from the recessed part of the product, the recessed part of the product will hook onto the slider. This makes demolding difficult due to the existing inclined ejection structure. Furthermore, when the mold needs to eject products from multiple directions, multiple inclined ejection structures are required. Using the existing inclined ejection structure would inevitably lead to an overly complex mold and occupy a large amount of space, increasing the mold's size. Therefore, this invention proposes an inclined ejection structure for molds to solve these problems. Summary of the Invention

[0004] Based on this, in order to solve the problems existing in the prior art, the present invention provides a mold oblique ejection structure, including an outer mold, the outer mold being provided with an installation groove;

[0005] The inner mold is set in the mounting groove and has an inclined third through hole.

[0006] An inclined ejector is slidably disposed in the third through hole;

[0007] The slider has a notch at the bottom and is slidably fitted onto one end of the inclined top piece. The bottom of the notch has an inclined surface, which is in the same direction as the inclination of the third through hole.

[0008] The locking pin assembly is located at the end of the inclined ejector near the slider. The locking pin assembly is used to position the slider when the inclined ejector is ejected.

[0009] Furthermore, the inner wall of the third through hole is provided with at least one first sliding groove, the first sliding groove is provided in the vertical direction, and one side of the slider extends into the first sliding groove.

[0010] Furthermore, a protrusion is provided at one end of the inclined top member near the slider, and a second sliding groove is provided on the inclined surface to match the protrusion, and the protrusion slides in the second sliding groove.

[0011] Furthermore, the second groove is T-shaped, and the shape of the protrusion matches the second groove.

[0012] Furthermore, the bottom surface of the inner side of the second slide groove is provided with a first limiting groove and a second limiting groove at intervals along the length direction. When the locking pin assembly is located in the first limiting groove and the second limiting groove, the locking pin assembly will lock the slider.

[0013] Furthermore, the locking pin assembly includes a mounting cylinder, a limiting member, and an elastic member. The protrusion has a mounting hole that extends into the inclined top member. The mounting cylinder is disposed within the mounting hole. The limiting member is located within the mounting cylinder. An elastic member is disposed between the limiting member and the bottom of the mounting cylinder. The limiting member protrudes from the mounting hole and abuts against the inclined surface.

[0014] Furthermore, the limiting component is spherical.

[0015] Furthermore, it also includes an inclined ejector seat, the outer mold is provided with a first through hole, the first through hole is connected to a third through hole, the inclined ejector seat is slidably disposed in the first through hole, and the other end of the inclined ejector extends to the first through hole and connects with the inclined ejector seat.

[0016] Furthermore, it also includes a top block, with a second through hole provided on the outer mold, and the top block is movably inserted into the second through hole.

[0017] Beneficial effects: This invention changes the sliding trajectory of the slider and sets the slider on top of the inclined ejector, and sets a locking pin assembly between the slider and the inclined ejector. When demolding the protrusions and recesses of the product, the locking pin assembly cooperates with each other to achieve easy demolding. Moreover, the inclined ejection structure is simple in structure, and the vertical sliding of the slider does not occupy too much space in the mold. When multiple sliders and inclined ejectors are required for multi-directional demolding, the mold structure is not too complicated and its volume is not too large, which can effectively control costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic cross-sectional view of the inclined ejection structure of the mold of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the inclined ejection structure of the mold of the present invention;

[0021] Figure 3 This is a schematic diagram of the product structure in the inclined ejection structure of the mold of the present invention;

[0022] Figure 4 This is a schematic diagram of the inclined ejector component of the inclined ejector structure of the mold of the present invention;

[0023] Figure 5 This is a schematic diagram of the slider structure of the inclined ejection structure of the mold of the present invention;

[0024] Figure 6 This is a bottom view of the slider of the inclined ejection structure of the mold of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the inclined ejector component of the mold inclined ejection structure of the present invention;

[0026] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0027] Figure 9 This is a schematic diagram of the ejection process of the inclined ejection structure of the mold of the present invention;

[0028] Figure 10 This is a schematic diagram of an existing mold structure;

[0029] In the diagram: 1. Outer mold; 11. First through hole; 12. Second through hole; 13. Mounting groove; 2. Inner mold; 21. Third through hole; 22. First slide groove; 3. Angled ejector; 31. Main body; 32. Protrusion; 321. Groove; 33. Raised shape; 34. Mounting hole; 4. Slider; 41. Notch; 411. Angled surface; 42. Second slide groove; 43. First limiting groove; 44. Second limiting groove; 45. Flange; 5. Locking pin assembly; 51. Mounting cylinder; 52. Limiting component; 53. Elastic component; 6. Ejector block; 7. Angled ejector seat; 8. Product; 81. Raised part; 82. Recessed part; 9. B plate; 91. Rear mold core; 92. Slide seat; 93. Angled guide post; 94. Scraper; 95. First insert; 96. Second insert; 97. Third insert.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] like Figure 1-5 As shown, an embodiment of the present invention provides a mold oblique ejection structure, comprising:

[0035] The outer mold 1 is provided with an installation groove 13, a first through hole 11 and a second through hole 12, and the first through hole 11 is located at the bottom of the installation groove 13;

[0036] Inner mold 2 is set in the mounting groove 13 of outer mold 1. Inner mold 2 has an inclined third through hole 21. First through hole 11 communicates with third through hole 21.

[0037] An inclined ejector 3 is slidably disposed in the third through hole 21, and both ends of the inclined ejector 3 protrude from the third through hole 21;

[0038] The slider 4 has a notch 41 at its bottom and is slidably fitted onto one end of the inclined top 3. The bottom of the notch 41 has an inclined surface 411, which is in the same direction as the inclination of the third through hole 21. The inner wall of the third through hole 21 has at least one first groove 22, which is arranged vertically. One side of the slider 4 extends into the first groove 22.

[0039] The locking pin assembly 5 is located at one end of the inclined ejector 3 near the slider 4. The locking pin assembly 5 is used to position the slider 4 when the inclined ejector 3 is ejected.

[0040] Top block 6 is movably inserted into the second through hole 12;

[0041] An inclined top seat 7 is slidably disposed in the first through hole 11, and the other end of the inclined top member 3 extends into the first through hole 11 and is connected to the inclined top seat 7.

[0042] Product 8 has a protrusion 81 and a recess 82 on its inner side. The inclined top 3 has a groove 321, in which the protrusion 81 is embedded. The slider 4 has a flange 45, in which the flange 45 is embedded.

[0043] In this embodiment, the inclined top member 3 is strip-shaped. When the inclined top member 3 slides in the inclined direction, it drives the slider 4 to slide in the vertical direction. The first through hole 11 and the second through hole 12 are both vertically arranged. There are two first sliding grooves 22, which are respectively arranged on the inner walls corresponding to the third through hole 21 and the two sides of the slider 4. The arrangement of the first sliding grooves 22 can restrict the slider 4 to slide only in the vertical direction.

[0044] During demolding, the inclined ejector 7 moves upward in the first through hole 11, thereby driving the inclined ejector 3 to be ejected upward along the inclined direction of the third through hole 21. At this time, the ejector block 6 also drives the product 8 to move upward synchronously. When the inclined ejector 3 starts to move, the locking pin assembly 5 does not restrict the slider 4. As the inclined ejector 3 is ejected upward at an angle, the slider 4, under the action of the first slide groove 22, will not slide synchronously with the inclined ejector 3, but will slide upward along the first slide groove 22. With the ejection of the inclined ejector 3, the slider 4 will not slide synchronously with the inclined ejector 3, but will slide upward along the first slide groove 22. The groove 321 of the inclined ejector 3 disengages from the protrusion 81 of the product 8. After the inclined ejector 3 completely disengages from the protrusion 81 of the product 8, the ejector block 6 continues to push upward, causing the recess 82 of the product 8 to disengage from the flange 45 of the slider 4. In addition, when the inclined ejector 3 completely disengages from the protrusion 81 of the product 8, the locking pin assembly 5 locks the slider 4. At this time, the continued pushing out of the inclined ejector 3 will drive the slider 4 to move synchronously until it completely disengages from the product 8. Finally, the product 8 is removed by the robot arm, and the demolding is completed.

[0045] This invention changes the sliding trajectory of the slider 4 and places the slider 4 on top of the inclined ejector 3, and sets a locking pin assembly 5 between the slider 4 and the inclined ejector 3. When demolding the protrusion 81 and the recess 82 of the product 8, the slider 4, the inclined ejector 3 and the locking pin assembly 5 cooperate with each other to achieve easy demolding. Moreover, the inclined ejection structure is simple and the vertical sliding of the slider 4 will not occupy too much space in the mold. When multiple sliders 4 and inclined ejectors 3 are required for multi-directional demolding, the mold structure will not be too complicated and its volume will not be too large, which can effectively control costs.

[0046] In one embodiment, the inclined top member 3 includes a body 31 and a protrusion 32, the protrusion 32 being disposed at one end near the slider 4, and the groove 321 being in the protrusion 32.

[0047] In this embodiment, the main body 31 and the protrusion 32 form a shape similar to an inclined "1".

[0048] In one embodiment, the inclined top member 3 is provided with a protrusion 33 at one end near the slider 4, and the inclined surface 411 is provided with a second groove 42 that is adapted to the protrusion 33, and the protrusion 33 slides in the second groove 42.

[0049] In this embodiment, the protrusion 33 is strip-shaped and arranged at an angle, with the angle direction parallel to the inclined surface 411. The second slide groove 42 is "T"-shaped, and the shape of the protrusion 33 matches the shape of the second slide groove 42.

[0050] Specifically, when the locking pin assembly 5 does not restrict the slider 4, as the inclined pusher 3 pushes out obliquely upward, the protrusion 33 slides obliquely upward in the second slide groove 42 of the slider 4. At this time, under the restriction of the first slide groove 22, the slider 4 will not slide synchronously with the inclined pusher 3. As the inclined pusher 3 pushes out, the groove 321 of the inclined pusher 3 disengages from the protrusion 81 of the product 8. After the inclined pusher 3 completely disengages from the protrusion 81 of the product 8, the top block 6 continues to push upward, causing the recess 82 of the product 8 to disengage from the flange 45 of the slider 4.

[0051] like Figure 6 As shown, in one embodiment, the bottom inner side of the second slide groove 42 is provided with a first limiting groove 43 and a second limiting groove 44 at intervals along the length direction. When the locking pin assembly 5 is located in the first limiting groove 43 and the second limiting groove 44, the locking pin assembly 5 will lock the slider 4.

[0052] In this embodiment, the first limiting groove 43 and the second limiting groove 44 represent different strokes. When demolding begins, the locking pin assembly 5 is located at the first limiting groove 43. When the inclined ejector 3 begins to lift at an angle, the locking pin assembly 5 is disengaged from the first limiting groove 43 under the action of the first slide groove 22 and slides towards the second limiting groove 44 in the second slide groove 42. At this time, the slider 4 slides upward in the first slide groove 22. When the locking pin assembly 5 slides to the second limiting groove 44, the second limiting groove 44 locks the locking pin assembly 5. At this time, the slider 4 just disengages from the first slide groove 22 and moves away from the product 8 synchronously with the inclined ejector 3 under the drive of the inclined ejector 3.

[0053] like Figure 7-9 As shown, in one embodiment, the locking pin assembly 5 includes a mounting cylinder 51, a limiting member 52, and an elastic member 53. The protrusion 33 has a mounting hole 32 that extends into the inclined top member 3. The mounting cylinder 51 is disposed in the mounting hole 32. The limiting member 52 is located in the mounting cylinder 51. An elastic member 53 is disposed between the limiting member 52 and the bottom of the mounting cylinder 51. The limiting member 52 partially protrudes from the mounting hole 32 and abuts against the inclined surface 411.

[0054] In this embodiment, the limiting member 52 is spherical, one end of the mounting cylinder 51 is closed and the other end is open, the limiting member 52 is located at the open end of the mounting cylinder 51, and the elastic member 53 includes, but is not limited to, a spring. The purpose of the elastic member 53 is to ensure that the limiting member 52 always abuts against the inner bottom surface of the second slide groove 42.

[0055] At the start of demolding, the limiting member 52 is located at the first limiting groove 43. When the inclined ejector 3 begins to lift at an angle, the limiting member 52 is disengaged from the first limiting groove 43 under the action of the first slide groove 22. The elastic member 53 is compressed, and the limiting member 52 slides towards the second limiting groove 44 within the second slide groove 42. During this process, the limiting member 52 is always in contact with the inner bottom surface of the second slide groove 42 under the action of the elastic member 53. When the limiting member 52 slides to the second limiting groove 44, the limiting member 52 is pushed into the second limiting groove 44 under the action of the elastic member 53. At this time, the slider 4 just disengages from the first slide groove 22 and is no longer restricted. The second limiting groove 44 holds the limiting member 52 in place. At this time, the inclined ejector block 6 continues to lift at an angle, which will drive the slider 4 to move synchronously away from the product 8.

[0056] like Figure 9 As shown, in one embodiment, when the limiting member 52 does not restrict the slider 4, the inclined top seat 7 moves upward by 32.5mm. At this time, the inclined top moves upward at an angle by 32.5mm, and simultaneously, the product 8, pushed by the top block 6, also moves upward by 32.5mm. At this time, the groove 321 of the inclined top member 3 disengages from the protrusion 81 of the product 8, and then the slider 4 slides downward relative to the product 8 by 5.7mm, causing the recess 82 of the product 8 to disengage from the flange 45 of the slider 4. When the limiting member 52 restricts the slider 4, the inclined top seat 7 and the top block 6 move upward by 27.5mm, and the inclined top member 3, carrying the slider 4, moves upward at an angle by 27.5mm, completely disengaging from the product 8.

[0057] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A mold oblique ejection structure, characterized in that, include: The outer mold is provided with an installation groove; An inner mold is disposed within the mounting groove, and the inner mold has an inclined third through hole. An inclined ejector, which is slidably disposed in the third through hole; The slider has a notch at its bottom and is slidably fitted onto one end of the inclined top. The bottom of the notch has an inclined surface, which is in the same direction as the inclination of the third through hole. A locking pin assembly is disposed at one end of the inclined ejector near the slider, and the locking pin assembly is used to position the slider when the inclined ejector is ejected.

2. The inclined ejection structure of the mold according to claim 1, characterized in that, The inner wall of the third through hole is provided with at least one first sliding groove, the first sliding groove is arranged in the vertical direction, and one side of the slider extends into the first sliding groove.

3. The inclined ejection structure of the mold according to claim 1, characterized in that, The inclined top member has a protrusion at one end near the slider, and the inclined surface has a second sliding groove that matches the protrusion, and the protrusion slides in the second sliding groove.

4. The inclined ejection structure of the mold according to claim 3, characterized in that, The second groove is T-shaped, and the shape of the protrusion matches the second groove.

5. The inclined ejection structure of the mold according to claim 3, characterized in that, The bottom inner side of the second slide groove is provided with a first limiting groove and a second limiting groove at intervals along the length direction. When the locking pin assembly is located in the first limiting groove and the second limiting groove, the locking pin assembly will lock the slider.

6. The inclined ejection structure of the mold according to claim 5, characterized in that, The locking pin assembly includes a mounting cylinder, a limiting member, and an elastic member. The protrusion has a mounting hole that extends into the inclined top member. The mounting cylinder is disposed within the mounting hole. The limiting member is located within the mounting cylinder. An elastic member is disposed between the limiting member and the bottom of the mounting cylinder. The limiting member partially protrudes from the mounting hole and abuts against the inclined surface.

7. The inclined ejection structure of the mold according to claim 6, characterized in that, The limiting component is spherical.

8. The mold oblique ejection structure according to claim 1, characterized in that, It also includes an inclined ejector seat, the outer mold is provided with a first through hole, the first through hole is connected to the third through hole, the inclined ejector seat is slidably disposed in the first through hole, and the other end of the inclined ejector extends to the first through hole and connects with the inclined ejector seat.

9. The inclined ejection structure of the mold according to claim 1, characterized in that, It also includes a top block, and the outer mold is provided with a second through hole, and the top block is movably inserted into the second through hole.

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