A beveling steering linkage core-pulling tripping mechanism and a forming die

Abstract

The present application belongs to the technical field of forming die, and proposes a kind of oblique cutting steering linkage core-pulling release mechanism and forming die, the release mechanism includes mould core, the mould core includes core body one and core body two, the core body one is provided with cavity one, the core body two is provided with cavity two, the cavity one is used to form buckle structure, and the cavity two is arranged at the back of cavity one;Fixed sliding block on the core body one, the core body two is provided with the inclined slot accommodating the movement of sliding block;The inclined slot is configured as: when core body two moves away from cavity one, the sliding block on the core body one slides in the inclined slot, so that the core body one moves along the direction perpendicular to the movement direction of core body two, and the cavity one is separated from buckle structure.

Description

Technical Field

[0001] This invention belongs to the field of molding die technology, and in particular relates to a release mechanism and molding die for oblique cutting and steering linkage core pulling. Background Technology

[0002] Mechanical snap-fit ​​connection is a common and practical connection method. It relies on the elastic arm of the snap-fit ​​to undergo elastic deformation under compression. The snap-fit ​​smoothly passes through the mating hole or mating structure of the connected parts, and returns to its original shape after passing through the mating hole to achieve the snap-fit. The snap-fit ​​that mates with the elastic arm has a mutually mating protrusion structure.

[0003] by Figure 1 The product structure shown is an example, featuring a base and a columnar snap-fit ​​protruding from the base. During injection molding, this product can naturally utilize a mold closing direction set along the X-axis to achieve injection and demolding while ensuring the integrity of the snap-fit. However, if the product structure changes, ... Figure 2 The product structure shown is an example of a structure that, in addition to the base and columnar fasteners, also has protruding structures on both sides, or similar structures that restrict the application of mold closing in the X direction.

[0004] Therefore, how to design the structure of the molding die to injection mold the above-mentioned snap-fit ​​products and to demold and pull the core smoothly without damaging the snap-fit ​​structure is a technical obstacle that needs to be overcome. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application proposes a release mechanism and forming mold for oblique-cutting steering linkage core pulling, the specific technical solution of which is as follows: In a first aspect, this application provides a release mechanism for oblique-cut steering linkage core pulling, including a mold core, the mold core including a core body one and a core body two, the core body one being provided with a cavity one, the core body two being provided with a cavity two, the cavity one being used to form a fastening structure, and the cavity two being disposed on the back side of the cavity one; The first core has a fixed slider, and the second core has an inclined groove to accommodate the movement of the slider. The inclined groove is configured such that when the second core moves away from the first cavity, the slider on the first core slides in the inclined groove, causing the first core to move in a direction perpendicular to the movement of the second core, and the first cavity disengages from the fastening structure.

[0006] Furthermore, it also includes a limiter, wherein the side wall of the core has a protruding cantilever, and the limiter has a limiting groove for accommodating and limiting the movement of the cantilever. The limiting groove is configured such that when the second core moves away from the first cavity, the slider on the first core slides in the inclined groove, and the cantilever moves along the groove wall of the limiting groove, so that the first core moves in a direction perpendicular to the movement of the second core, until the cantilever disengages from the limiting groove, and the first cavity disengages from the fastening structure.

[0007] Furthermore, it also includes a core-pulling mechanism, which includes a connecting block one and a connecting block two that are fixedly connected. The connecting block two fixes the core two onto the connecting block one, so that the connecting block one drives the core two to move.

[0008] Furthermore, the core-pulling mechanism also includes a pull pin, which passes through connecting block one and connecting block two and is fixed to core one, and the pull pin has the same inclination angle as the inclined groove.

[0009] Furthermore, a spring is provided between the core one and the core pulling mechanism. The spring is configured such that when the core one contacts the connecting block two, the spring is in a compressed state, causing the core one to be pushed out beyond the core two by the elastic force of the spring.

[0010] Furthermore, it also includes an inclined guide post, which penetrates the connecting block one, and the inclined guide post slides in conjunction with the connecting block one to drive the core two to move.

[0011] In a second aspect, this application provides a molding die, including the aforementioned oblique-cutting steering linkage core-pulling release mechanism.

[0012] The beneficial effects of this invention are as follows: The release mechanism of the present invention uses two separable cores, Core 1 and Core 2, as mold cores. Core 1 and Core 2 are further configured to cooperate with a slider and a slanted groove, so that after Core 2 and Core 1 slide and are pulled out, Core 1 moves in a direction perpendicular to the movement of Core 2, thereby causing the cavity of Core 1 to disengage from the snap-fit ​​structure, achieving the purpose of smooth demolding without damaging the snap-fit ​​structure. Attached Figure Description

[0013] Figure 1 The image shows an exemplary fastening product structure; Figure 2 The image shows another exemplary snap-fit ​​product structure; Figure 3 The figure shown is a three-dimensional structural diagram of the tripping mechanism of the oblique-cut steering linkage core pulling; Figure 4 The image shown is a top view of the tripping mechanism; Figure 5 As shown Figure 4 Sectional view of AA; Figure 6 As shown Figure 4 Sectional view of BB; Figure label: 1-Cavity 1; 2-Cavity 2; 10-Mold core; 11-Core 1; 111-Cantilever; 12-Core 2; 13-Slider; 14-Angled groove; 20-Core pulling mechanism; 21-Connecting block 1; 22-Connecting block 2; 23-Limiter; 24-Spring; 25-Pull pin; 30-Angled guide post. Detailed Implementation

[0014] In the following description, certain specific details are set forth in order to provide a thorough understanding of various embodiments. However, those skilled in the art will understand that the invention can be practiced without these details. In other instances, well-known structures have not been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. Unless the context otherwise requires, throughout the specification and appended claims, the word "comprising" should be interpreted in an open-ended, inclusive sense, i.e., as "including but not limited to".

[0015] See Figure 3 This application describes a diagonal turning linkage core pulling release mechanism. This release mechanism is applied in the molding mold of the snap-fit ​​product and is part of the molding mold. It is mainly used to cooperate with the snap-fit ​​structure of the molded product and to ensure that the product can be demolded smoothly without damaging the snap-fit ​​structure after molding.

[0016] exist Figure 3 In the process, the release mechanism has cavity 1 for mating the molded snap-fit ​​structure and cavity 2 for mating the molded base structure. In other words, the release mechanism also needs to be used with other mold structures to form a complete cavity for injection molding snap-fit ​​products; similarly, combined with Figure 3 It is also easy to see that, because the side of cavity 2 closest to cavity 1 is an irregular surface, therefore Figure 3 In essence, it also provides another product structure, which will limit the application of mold closing in the X direction.

[0017] The release mechanism includes a mold core 10, a core pulling mechanism 20, and an inclined guide post 30. The mold core 10 is connected to the core pulling mechanism 20, and the inclined guide post 30 is slidably engaged with the core pulling mechanism 20. When the inclined guide post 30 and the core pulling mechanism 20 slide relative to each other, the core pulling mechanism 20 will drive the mold core 10 to move synchronously, causing the mold core 10 to separate from the molded product.

[0018] More specifically, the mold core 10 includes a separable core body 11 and a core body 12. The core body 11 has a cavity 1 for fitting and molding the snap-fit ​​structure, and the core body 12 has a cavity 2 for fitting and molding the base. When molding the product, the mold core 10 is located between the snap-fit ​​structure and the base. After the product is molded, the mold core 10 can be smoothly separated from the snap-fit ​​structure and the base through the cooperation of the inclined guide post 30 and the core pulling mechanism 20, while keeping the snap-fit ​​structure and the base undamaged.

[0019] In this application, one or more mold cores 10 can be connected to the core-pulling mechanism 20. The number of mold cores 10 corresponds to the number of products that the mold can form at one time. For example, Figure 3 The number of intermediate mold cores 10 is set to two.

[0020] Figure 4 This is a top view of the tripping mechanism. Figure 5 for Figure 4 Sectional view of AA, Figure 6 for Figure 4 A cross-sectional view of BB.

[0021] In this application, the cooperation between the inclined guide post 30 and the core-pulling mechanism 20 is to make the core-pulling mechanism 20 move along the Y direction. That is, when the inclined guide post 30 is pressed and moves along the Z direction, the core-pulling mechanism 20 will move away from the mold core 10 along the Y direction.

[0022] The core-pulling mechanism 20 includes a first connecting block 21 and a second connecting block 22. The first connecting block 21 and the second connecting block 22 are fixedly connected by bolts. At the same time, the second connecting block 22 fixes the second core 12 to the first connecting block 21, so that the core-pulling mechanism 20 moves while being moved.

[0023] Combination Figure 5 Since core 11 has cavity 1 for fitting and molding the snap-fit ​​structure, and core 2 has cavity 2 for fitting and molding the base, and core 11 and core 2 can be separated from each other, when the core pulling mechanism 20 moves along the Y direction as a whole, core 2 will also move along the Y direction, and core 2 will slide relative to core 11.

[0024] In addition, core 11 and core 2 12 are mutually separated by slider 13 and inclined groove 14. Inclined groove 14 is set on core 2 12, and slider 13 is fixed on core 11 by screws. At the same time, slider 13 slides in inclined groove 14. Inclined groove 14 is configured such that when core 2 12 moves along the Y direction with core pulling mechanism 20, core 11 moves along the Z direction under the action of slider 13 and inclined groove 14, thereby causing cavity 1 to separate from the snap-fit ​​structure. Then, core 11 can move along the Y direction to completely separate the mold core 10 from the snap-fit ​​structure and the base, and keep the snap-fit ​​structure and the base from damage.

[0025] The cross-section of the inclined groove 14 is T-shaped or similar, so that the slider 13 is restricted in the inclined groove 14 and can only slide along the inclined groove 14.

[0026] The core-pulling mechanism 20 also includes a limiter 23. The side wall of the core 11 has a protruding cantilever 111. The limiter 23 has a limiting groove that accommodates and restricts the movement of the cantilever 111 along the Z direction. The depth of the limiting groove is not less than the demolding depth of the snap-fit ​​structure. That is, during the injection molding process, the core 11 and the core 212 are not separated. At this time, the cantilever 111 is completely accommodated at the bottom of the limiting groove. When the core 212 moves along the Y direction with the core-pulling mechanism 20 as a whole, the core 11 moves along the Z direction, and the cantilever 111 moves away from the bottom of the groove until the cantilever 111 is completely separated from the limiting groove. Then the core 11 can be completely separated from the snap-fit ​​structure and the base, and the snap-fit ​​structure and the base are not damaged.

[0027] The core-pulling mechanism 20 also includes a pull pin 25. The pull pin 25 passes through the connecting block 1 21 and the connecting block 22 and is fixed to the core 11. The tail end of the pull pin 25 in the connecting block 21 is also provided with a movable distance. The pull pin 25 and the inclined groove 14 have the same inclination angle. When the core-pulling mechanism 20 moves along the Y direction, the core 2 12 moves along the Y direction with the core-pulling mechanism 20 until the core 11 is completely separated from the fastening structure and the base along the Z direction. As the core-pulling mechanism 20 continues to move, the tail end of the pull pin 25 contacts the connecting block 21. The pull pin 25 then moves along the Y direction with the core-pulling mechanism 20, thereby pulling the core 11 to move along the Y direction and completing the core-pulling action.

[0028] The core-pulling mechanism 20 also includes a spring 24, which is disposed between the core 11 and the core-pulling mechanism 20. The spring 24 is configured such that when the core 11 and the connecting block 22 are in contact, the spring 24 is in a compressed state, storing elastic potential energy, thereby causing the core 11 to be pushed out beyond the core 22 under the action of the spring 24. During the reset process after the core-pulling mechanism 20 has completed the core-pulling, the actions of the core 11 and the core 22 are opposite to the core-pulling process, thus completing the mold closing action.

[0029] The cooperation between the pull pin 25 and the connecting block 21 can improve the stability of the core pulling action, and at the same time, it can work with the spring 24 to realize the reset of the core body 11 after the core is pulled; the connection between the pull pin 25 and the core body 11 includes, but is not limited to, threaded connection.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A tripping mechanism for oblique-cut steering linkage core pulling, characterized in that, The mold core includes a core body one and a core body two. The core body one is provided with a cavity one, and the core body two is provided with a cavity two. The cavity one is used to form a snap-fit ​​structure, and the cavity two is located on the back side of the cavity one. The first core has a fixed slider, and the second core has an inclined groove to accommodate the movement of the slider. The inclined groove is configured such that when the second core moves away from the first cavity, the slider on the first core slides in the inclined groove, causing the first core to move in a direction perpendicular to the movement of the second core, and the first cavity disengages from the fastening structure. It also includes a limiter, wherein the side wall of the core has a protruding cantilever, and the limiter has a limiting groove for accommodating and limiting the movement of the cantilever; The limiting groove is configured such that when the second core moves away from the first cavity, the slider on the first core slides in the inclined groove, and the cantilever moves along the groove wall of the limiting groove, so that the first core moves in a direction perpendicular to the movement of the second core, until the cantilever disengages from the limiting groove, and the first cavity disengages from the fastening structure. It also includes a core-pulling mechanism, which includes a connecting block 1 and a connecting block 2 that are fixedly connected. The connecting block 2 fixes the core 2 onto the connecting block 1, so that the connecting block 1 drives the core 2 to move.

2. The tripping mechanism for oblique-cut steering linkage core pulling according to claim 1, characterized in that, The core-pulling mechanism also includes a pull pin, which passes through connecting block one and connecting block two and is fixed to core one, and the pull pin has the same inclination angle as the inclined groove.

3. The tripping mechanism for oblique-cut steering linkage core pulling according to claim 1, characterized in that, A spring is provided between the core and the core-pulling mechanism. The spring is configured such that when the core contacts the connecting block, the spring is in a compressed state, causing the core to be pushed out beyond the core by the elastic force of the spring.

4. The tripping mechanism for oblique-cut steering linkage core pulling according to claim 1, characterized in that, It also includes a slanted guide post, which penetrates the connecting block one and slides with the connecting block one to drive the core two to move.

5. A molding die, characterized in that, The tripping mechanism includes the oblique-cut steering linkage core pulling mechanism as described in any one of claims 1 to 4.

Images