A mold multi-stage slider structure

Abstract

The present invention relates to the field of mold technology, and in particular to a mold multi-stage slider structure, wherein the mold includes a movable mold plate and a fixed mold plate, and the multi-stage slider structure includes a main slider mechanism and an inclined spring block mechanism, wherein the main slider mechanism includes a main slider body, a main slider insert fixed on the main slider body, and an inclined guide column, wherein the main slider body can be slidably fixed on the movable mold plate and has an obliquely arranged waist-shaped through hole, wherein the inclined guide column is fixed on the fixed mold plate and penetrates into the waist-shaped through hole, so that the main slider body can move to the right with the inclined guide column after the core pulling starts, and an insert groove is provided on the main slider insert; the inclined spring block mechanism includes an elastic block body and an ejection element, wherein the elastic block body is arranged in the insert groove, and the ejection element is arranged between the elastic block body and the main slider body, and is used to eject the elastic block body obliquely upward to the left immediately after the core pulling process starts. The multi-stage slider structure of the present invention can realize the core pulling of characteristic structures with different core pulling directions in a small space.

Description

Technical Field

[0001] The invention relates to the technical field of molds, in particular to a mold multi-stage slider structure. Background Art

[0002] With the continuous development of society, people's living standards are gradually improving, and consumers are more picky about the appearance of consumer products and have higher quality requirements. This is especially true for products produced by injection molds. Product designs are constantly being updated, the shapes are becoming more and more novel and unique, the structural features are becoming more complex, and the quality and stability requirements of the finished products are constantly increasing, but at the same time, the cost requirements are lower. Correspondingly, it constantly brings challenges to the structural function, stability, processing technology level, and manufacturing cost of the molding mold. In fact, mold technology is also constantly innovating and developing under the impetus of this trend, and mold structures with more complex functions, more stable mold structures, mold structures that are easier to process and maintain, and more economical mold structures are constantly emerging.

[0003] For some parts with different characteristic structures such as buckles and bosses with special angles, special demolding methods need to be designed. When there is more than one characteristic structure such as buckles and bosses and the directions are inconsistent, core pulling at different angles is required. How to achieve multi-angle core pulling in a narrow mold space is a problem that needs to be considered in the mold design process. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the core pulling problem of special structures at different angles, the present invention provides a multi-stage slider structure of a mold, which includes a main slider mechanism and an inclined spring block mechanism. The inclined spring block mechanism can instantly push the spring block body obliquely upward to the left when the core pulling starts, so as to realize the demolding of the first characteristic structure. After the core pulling starts, the main slider mechanism moves with the guide column with a delay, so that after the first characteristic structure is demolded, the second characteristic structure with a demolding direction different from the first characteristic structure is demolded, which effectively solves the above-mentioned problem.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A mold multi-stage slider structure, the mold includes a movable template and a fixed template, the multi-stage slider structure includes

[0007] A main slider mechanism, the main slider mechanism comprises a main slider body, a main slider insert fixed on the main slider body, and an inclined guide column. The main slider body can be slidably fixed on the movable template and has an obliquely arranged oval through hole. The oblique guide column is fixed on the fixed template and penetrates into the oval through hole, so that the main slider body moves to the right with the oblique guide column after the core pulling starts. The main slider insert is provided with an insert groove; and

[0008] The inclined spring block mechanism includes a spring block body and a pop-up element. The spring block body is arranged in the insert groove, and the pop-up element is arranged between the spring block body and the main slider body, and is used to immediately eject the spring block body obliquely upward to the left after the core pulling process begins.

[0009] Preferably, the block body is provided with a block oblique hole which is consistent with the ejection direction of the block body, and the oblique hole of the block is provided with an oblique hole ring protruding inwardly along the inner wall;

[0010] The main slider body is provided with an inclined groove on one side in contact with the spring block body, and the inclined groove cooperates with the spring block inclined hole to form a cylindrical through hole; the ejection element is located between the inclined groove and the inclined hole ring platform.

[0011] Preferably, the above-mentioned inclined spring block mechanism also includes a fixing bolt, which passes through the inclined hole and inclined groove of the spring block and is fixed on the main slider body, so that a set distance is left between the screw head of the fixing bolt and the inclined hole ring platform; the pop-up element is sleeved on the fixing bolt.

[0012] Preferably, at least one ejection guide bar is provided on the inner side wall of the insert groove, which is consistent with the ejection direction of the block body, and the block body is provided with a corresponding ejection groove at a position corresponding to the ejection guide bar, so as to facilitate accurate ejection of the block body along the ejection direction.

[0013] Preferably, the above-mentioned inclined spring block mechanism also includes a strong pulling device, so that when the ejection element fails, the spring block body can also be forcibly pulled out.

[0014] Preferably, the strong pulling device comprises a fixed die hook and a spring block hook, both of which are L-shaped and comprise a long portion and a short portion perpendicular to each other; the fixed die hook is fixed to the fixed die plate through the long portion, and the spring block hook is fixed to the spring block body through the long portion, so that the short portion of the fixed die hook and the short portion of the spring block hook can fit together.

[0015] Preferably, the surfaces of the short parts of the fixed die hook and the spring block hook are both inclined surfaces, and the inclined surfaces are inclined downward from one end close to the long part to one end away from the long part.

[0016] Preferably, the main slider mechanism further comprises a slider scraper fixed on the fixed template, the side of the slider scraper in contact with the main slider body being an inclined surface, and the side of the main slider body in contact with the slider scraper is also an inclined surface, so as to facilitate the slider scraper to make way for the main slider body to move before the delayed moving main slider body starts to move.

[0017] Preferably, the main slider mechanism further comprises a pressure strip, and the bottom of the main slider body is provided with side strips protruding to both sides, one side of the pressure strip is fixed on the movable template, and the other side is pressed on the side strip, so that the main slider body can slide along the movable template.

[0018] Preferably, the ejection element is a pressure spring; and two ejection guide strips are provided, symmetrically arranged on the inner side walls on both sides of the insert groove (221).

[0019] The beneficial effects of the present invention are:

[0020] (1) The multi-stage slider structure of the present invention includes a main slider mechanism and an inclined spring block mechanism. The inclined spring block mechanism ejects the spring block body through the ejection element. When the core pulling starts, the spring block body can be ejected obliquely to the left and upward immediately to realize the demoulding of the first characteristic structure. The inclined guide column of the main slider mechanism is inserted into the oval circular through hole. After the core pulling starts, before the inclined guide column hits the inner wall on the other side of the oval circular through hole, the main slider body will not move with the movement of the inclined guide column, thereby realizing the delayed movement of the main slider body. After the first characteristic structure is demoulded, the second characteristic structure with a demoulding direction different from the first characteristic structure is demoulded. The whole process can be completed in a small space, which can meet the mold design of a small space.

[0021] (2) The present invention provides at least one ejection guide bar on the inner side wall of the insert groove, which is consistent with the ejection direction of the spring body, and provides an ejection groove at a position corresponding to the spring body and the ejection guide bar, so that the spring body can be accurately ejected along the ejection direction, thereby improving the core pulling accuracy and avoiding damage to the characteristic structure;

[0022] (3) The present invention is also provided with a strong pulling device, including a fixed die draw hook fixed on the fixed die plate and a spring block draw hook fixed on the spring block body. The two draw hooks cooperate with each other, so that even if the ejection element fails, the spring block body can be pulled out smoothly to avoid jamming;

[0023] (4) The present invention does not provide any special shaped parts, which facilitates processing and can effectively reduce the difficulty of the processing and grinding processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a top view of the present invention (the fixed template and a layering strip are omitted);

[0026] Figure 2 is along Figure 1 Cross-sectional view of the middle AA line (after the product is formed and before core pulling begins);

[0027] Figure 3 yes Figure 2Enlarged view of part a;

[0028] Figure 4 is along Figure 1 Cross-sectional view of the middle BB line (after the product is formed and before core pulling begins)

[0029] Figure 5 yes Figure 2 A schematic diagram of the case where the first characteristic structure barb has completed core pulling and the second characteristic structure boss has not yet been core pulled;

[0030] Figure 6 yes Figure 5 Enlarged view of part b;

[0031] Figure 7 yes Figure 4 A schematic diagram of the case where the first characteristic structure barb has completed core pulling and the second characteristic structure boss has not yet been core pulled;

[0032] Figure 8 yes Figure 2 Schematic diagram of the case where the second characteristic structure boss also completes the core pulling;

[0033] Fig. 9 yes Figure 8 Enlarged view of part c;

[0034] Fig.10 yes Figure 4 Schematic diagram of the case where the second characteristic structure boss also completes the core pulling;

[0035] Fig.11 It is a schematic diagram of the assembly of the main slider mechanism and the inclined spring block mechanism;

[0036] Fig.12 It is a schematic diagram of the structure of the bullet body;

[0037] In the figure: 11. Moving template; 12. Fixed template; 21. Main slider body; 211. Oval through hole; 212. Oblique groove; 213. Side strip; 22. Main slider insert; 221. Insert groove; 222. Ejector guide strip; 23. Oblique guide column; 24. Slider shovel; 25. Pressing strip; 31. Block body; 311. Oblique hole of block; 312. Oblique hole ring; 313. Ejector groove; 32. Ejection element; 33. Fixing bolt; 34. Strong pulling device; 341. Fixed mold hook; 342. Block hook; 343. Long part; 344. Short part; 9. Product; 91. Barb; 92. Boss. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] The present invention Figure 2 The direction E shown in the figure is right, and the direction opposite to E is left.

[0040] A mold multi-stage slider structure, such as Figure 1-4 and Fig.11 As shown, the mold includes a movable template 11 and a fixed template 12, and the multi-stage slider structure includes a main slider mechanism and an inclined spring block mechanism. The main slider mechanism includes a main slider body 21, a main slider insert 22 fixed on the main slider body 21, and an inclined guide column 23. The main slider body 21 can be slidably fixed on the movable template 11, and has an obliquely set oval through hole 211. The oblique guide column 23 is fixed on the fixed template 12 and penetrates into the oval through hole 211, so that the main slider body 21 can move to the right with the inclined guide column 23 after the core pulling process starts. An insert groove 221 is provided on the main slider insert 22; the oblique spring block mechanism includes a spring block body 31 and a pop-up element 32. The spring block body 31 is arranged in the insert groove 221, and the pop-up element 32 is arranged between the spring block body 31 and the main slider body 21, and is used to eject the spring block body 31 obliquely to the left and upward immediately after the core pulling process starts.

[0041] When the product 9 is formed (the status of each component at this time is shown in Figure 2-4 ), the core pulling starts, and the inclined guide column 23 moves upward under the drive of the fixed template 12. Since the main slider body 21 is provided with an inclined oval through hole 211, the inclined guide column 23 contacts the left inner wall of the oval through hole 211 at the beginning. When the inclined guide column 23 just starts to move upward, it only moves to the right in the oval through hole 211 and does not touch the main slider body 21, so the main slider body 21 does not move. However, as the fixed template 12 moves upward, the block body 31 is no longer suppressed, and the ejection element 32 pushes the block body 31 to move obliquely to the left and upward, so that the block body 31 is separated from the first characteristic structure hook 91, and the core pulling of the hook 91 is completed (the status of each component at this time is shown in FIG. Figure 5-7 After that, the inclined guide post 23 continues to move upward with the fixed template 12 until it touches the right inner wall of the oval through hole 211, and the main slider body 21 moves rightward with the upward movement of the inclined guide post 23 to the second characteristic structure boss 92 to complete the core pulling (at this time, the status of each component is Figure 8-10). The setting of the ejection element 32 enables the fixed template 12 to immediately push the block body 31 to move obliquely upward to the left after it starts to move upward, completing the core pulling of the barb 91; the setting of the oblong through hole 211 enables the main slider body 21 to move rightward with a delay after the fixed template 12 starts to move upward, so that after the first characteristic structure barb 91 is core pulled, the second characteristic structure boss 92 with the opposite core pulling direction is pulled. The core pulling of two characteristic structures with opposite core pulling directions is completed in a small space through ingenious design.

[0042] When the mold is closed, the inclined guide pillar 23 first drives the main slider body 21 to move leftward, and then the fixed mold plate 12 presses the spring block body 31 to reset, completing the mold closing.

[0043] In a specific embodiment, Figure 3 As shown, the block body 31 is provided with a block inclined hole 311 which is consistent with the ejection direction of the block body 31, and the block inclined hole 311 is provided with an inclined hole ring platform 312 which protrudes inward along the inner wall; the main slider body 21 is provided with an inclined groove 212 on the side in contact with the block body 31, and the inclined groove 212 and the block inclined hole 311 cooperate to form a cylindrical through hole; the ejection element 32 is located between the inclined groove 212 and the inclined hole ring platform 312.

[0044] In a specific embodiment, Figure 3 As shown, the inclined spring block mechanism also includes a fixing bolt 33, which passes through the inclined hole 311 of the spring block and the inclined groove 212 and is fixed on the main slider body 21, so that a set distance is left between the screw head of the fixing bolt 33 and the inclined hole ring platform 312; the pop-up element 32 is sleeved on the fixing bolt 33.

[0045] In a specific embodiment, Figure 11-12 As shown, at least one ejection guide bar 222 is provided on the inner side wall of the insert groove 221 in the same ejection direction as the block body 31, and the block body 31 is provided with a corresponding ejection groove 313 at a position corresponding to the ejection guide bar 222, so as to facilitate accurate ejection of the block body 31 along the ejection direction.

[0046] In a specific embodiment, Figure 2 and Fig.11 As shown, the inclined spring block mechanism also includes a strong pulling device 34, so that when the ejection element 32 fails, the spring block body 31 can also be forcibly pulled out.

[0047] In a specific embodiment, Figure 2 and Figure 5As shown, the strong pulling device 34 includes a fixed die hook 341 and a spring hook 342, both of which are L-shaped and include a long portion 343 and a short portion 344 perpendicular to each other; the fixed die hook 341 is fixed to the fixed die plate 12 through the long portion 343, and the spring hook 342 is fixed to the spring body 31 through the long portion 343, so that the short portion 344 of the fixed die hook 341 and the short portion 344 of the spring hook 342 can be matched together. The fixed die hook 341 and the spring hook 342 cooperate with each other, so that even if the ejection element 32 fails, the spring body 31 can be pulled out smoothly to avoid being stuck.

[0048] In a specific embodiment, Figure 2 As shown, the surfaces of the short portions 344 of the fixed die hook 341 and the spring block hook 342 are both inclined surfaces, and the inclined surfaces are inclined downward from an end close to the long portion 343 to an end away from the long portion 343 .

[0049] In a specific embodiment, Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, the main slider mechanism also includes a slider scraper 24 fixed on the fixed template 12, and the side of the slider scraper 24 in contact with the main slider body 21 is an inclined surface, and the side of the main slider body 21 in contact with the slider scraper 24 is also an inclined surface, so that the slider scraper 24 can make way for the main slider body 21 to move before the delayed moving main slider body 21 starts to move. In addition, the slider scraper 24 can provide locking force for the main slider body 21 during the injection molding process.

[0050] In a specific embodiment, Figure 1 As shown, the main slider mechanism also includes a pressure strip 25. The bottom of the main slider body 21 is provided with side strips 213 protruding to both sides. One side of the pressure strip 25 is fixed on the movable template 11, and the other side is pressed on the side strip 213, so that the main slider body 21 can slide along the movable template 11.

[0051] In a specific embodiment, Fig.11 As shown, the ejection element 32 is a pressure spring; two ejection guide strips 222 are provided, symmetrically arranged on the inner side walls on both sides of the insert groove 221.

[0052] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mold multi-stage slider structure, the mold comprising a movable mold plate (11) and a fixed mold plate (12), characterized in that: The multi-stage slider structure includes A main slider mechanism, the main slider mechanism comprising a main slider body (21), a main slider insert (22) fixed on the main slider body (21), and an inclined guide column (23); the main slider body (21) is slidably fixed on the movable template (11) and has an obliquely arranged waist-shaped through hole (211); the inclined guide column (23) is fixed on the fixed template (12) and is inserted into the waist-shaped through hole (211), so that the main slider body (21) moves rightward with the inclined guide column (23) after the core pulling process starts, and an insert groove (221) is provided on the main slider insert (22); and An inclined spring block mechanism, the inclined spring block mechanism comprising a spring block body (31) and an ejection element (32), the spring block body (31) being arranged in the insert groove (221), the ejection element (32) being arranged between the spring block body (31) and the main slider body (21), and being used for ejecting the spring block body (31) obliquely upward to the left immediately after the core pulling process begins; The bullet body (31) is provided with an inclined bullet hole (311) which is consistent with the ejection direction of the bullet body (31), and the inclined bullet hole (311) is provided with an inclined hole ring platform (312) which protrudes inwardly along the inner wall; The main slider body (21) is provided with an inclined groove (212) on the side in contact with the spring block body (31), and the inclined groove (212) and the spring block inclined hole (311) cooperate to form a cylindrical through hole; the ejection element (32) is located between the inclined groove (212) and the inclined hole ring platform (312); The inclined spring block mechanism further comprises a fixing bolt (33), the fixing bolt (33) passing through the spring block inclined hole (311) and the inclined groove (212) and fixed on the main slider body (21), so that a set distance is left between the screw head of the fixing bolt (33) and the inclined hole ring platform (312); the ejection element (32) is sleeved on the fixing bolt (33); At least one ejection guide bar (222) is provided on the inner side wall of the insert groove (221) and is consistent with the ejection direction of the spring block body (31). The spring block body (31) is provided with a corresponding ejection groove (313) at a position corresponding to the ejection guide bar (222), so as to facilitate accurate ejection of the spring block body (31) along the ejection direction.

2. The mold multi-stage slider structure according to claim 1, characterized in that: The inclined spring block mechanism also includes a strong pulling device (34) for forcibly pulling out the spring block body (31) when the ejection element (32) fails.

3. The mold multi-stage slider structure according to claim 2, characterized in that: The strong pulling device (34) comprises a fixed die hook (341) and a spring block hook (342); the fixed die hook (341) and the spring block hook (342) are both L-shaped and comprise a long portion (343) and a short portion (344) perpendicular to each other; the fixed die hook (341) is fixed to the fixed die plate (12) via the long portion (343), and the spring block hook (342) is fixed to the spring block body (31) via the long portion (343), so that the short portion (344) of the fixed die hook (341) and the short portion (344) of the spring block hook (342) fit together.

4. The mold multi-stage slider structure according to claim 3, characterized in that: The surfaces of the short portions (344) of the fixed die hook (341) and the spring block hook (342) are both inclined surfaces, and the inclined surfaces are inclined downward from an end close to the long portion (343) to an end away from the long portion (343).

5. The mold multi-stage slider structure according to claim 1, characterized in that: The main slider mechanism also includes a slider shovel (24) fixed on the fixed template (12), wherein the side of the slider shovel (24) in contact with the main slider body (21) is an inclined surface, and the side of the main slider body (21) in contact with the slider shovel (24) is also an inclined surface, so that the slider shovel (24) can make way for the main slider body (21) to move before the delayed moving main slider body (21) starts to move.

6. The mold multi-stage slider structure according to claim 1, characterized in that: The main slider mechanism also includes a pressure strip (25), and the bottom of the main slider body (21) is provided with side strips (213) protruding to both sides, and one side of the pressure strip (25) is fixed to the movable template (11), and the other side is pressed on the side strip (213), so that the main slider body (21) slides along the movable template (11).

7. The mold multi-stage slider structure according to claim 1, characterized in that: The ejection element (32) is a pressure spring; and two ejection guide strips (222) are provided, symmetrically arranged on the inner side walls on both sides of the insert groove (221).

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