A slider structure

Abstract

The present invention discloses a slider structure, which relates to the field of in-mold transfer and mold technology, including: a first slider, which is provided with a raised guide rail; a second slider, which is provided with a guide groove, and the second slider is engaged on the guide rail of the first slider through the guide groove, and the movement of the second slider can drag the first slider to move; a shift rod, which is used to shift the second slider to move; a slider bundle block, which plays a role in resisting the return of the second slider and tightening the second slider; a tightening block, which together with the second slider helps the first slider to resist the injection pressure, thereby increasing the stability of the first slider under the injection pressure. A slider structure of the present invention is used in an in-mold transfer mold, will not interfere with the film, and solves the problem that the mold structure cannot meet the injection molding requirements of the product due to the appearance or functional requirements of the product.

Description

Technical field

[0001] The invention relates to the technical field of in-mold transfer and mold technology, in particular to a slider structure. [Background Technology]

[0002] In today's era of injection molding, which emphasizes simplicity and low pollution, in-mold transfer (IMR) offers an excellent solution for the industry. Many electronic products, such as laptop keyboards, utilize this process. In this process, patterns and colors are pre-printed on a film. A film feeder then feeds the film into a mold for lamination and injection molding. After injection molding, the ink separates from the film, resulting in a finished product with ink remaining on the surface. However, existing in-mold transfer molds, while equipped with sliders for film entry and exit, typically only have slider blocks at each end to resist injection pressure. When processing larger products, the lack of a slider block in the middle to secure the slider often results in step differences and burrs. In more serious cases, the slider can deform due to the injection pressure. These issues, caused by the mold structure failing to meet the injection molding requirements due to product appearance or functional requirements, increase maintenance costs and reduce product yields.

[0003] In view of this, it is necessary to develop a slider structure to solve the above problems. [Summary of the invention]

[0004] Therefore, the purpose of the present invention is to provide a slider structure. Using this slider structure, even the slider in the in-mold transfer mold in the direction of film entry and exit will not interfere with the film. The slider structure is provided with a second slider and a tightening block, and the second slider drags the first slider to move. The second slider and the tightening block can better support and tighten the first slider during mold closing and injection molding, increase the stability of the first slider under injection pressure, thereby reducing the step difference and burrs of the product and improving the yield rate.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A slider structure is used for forming a product in a mold, wherein the mold includes a female mold plate and a male mold plate, and is characterized in that the slider structure includes:

[0007] The first slider is provided in the male template, which is divided into two sides and a middle part. The two sides are respectively provided with inclined surfaces. The two inclined surfaces respectively make the outer edges of the two sides shrink inward, so that the cross-sectional area of ​​the first slider near the middle is larger, and the cross-sectional area of ​​the outer edges of the two sides is smaller. The two inclined surfaces are respectively provided with steps extending outward, and the steps are provided with raised guide rails. The guide rails are inclined and the inclination direction is consistent with the inclined surfaces. The outer edges of the two sides of the first slider are also provided with side wings extending outward. The first slider is movably connected to the male template by the slider pressure block to support the side wings. The first slider can reciprocate relative to the male template. The middle part of the first slider is provided with an extended end. The extended end is provided at one end of the first slider, and the other end is a molding product part;

[0008] The second slider is provided in the male template and is divided into a head, a middle part and a tail part. The head part is provided with an inclined surface A, which is in contact with the inclined surface of the first slider. An inclined surface B is provided on the opposite side of the inclined surface A. The inclined surface A and the inclined surface B make the head part of the second slider shrink inward. An oblique through hole is provided in the middle part of the second slider. An inclined surface C is provided at the tail part of the second slider. Side wings extending outward are respectively provided on both sides of the second slider. The second slider is movably connected to the male template by a slider pressure block to resist these side wings. The second slider can reciprocate relative to the male template, and the reciprocating motion direction is perpendicular to the reciprocating motion direction of the first slider. The second slider is provided with two, which are symmetrically divided with the extended end of the first slider as the center, so that both sides to the middle of the first slider are resisted by the second slider;

[0009] The bottom surface of the second slider is close to the male mold plate, and a guide groove is provided at the intersection of the bottom surface and the inclined surface A. The second sliders are respectively engaged with the guide rails of the first slider through the guide grooves. During the mold opening and closing process, the second sliders move and drag the first slider to move;

[0010] A shifting rod, one end of which is fixed to the mother template, and the other end of which is obliquely inserted through the oblique through-hole of the second slider, for shifting the second slider to move;

[0011] The slider block has one end fixed to the mother mold plate and the other end is provided with an inclined surface. This inclined surface makes the slider block shrink inward. During the mold opening and closing process, this inclined surface slides along the inclined surface C of the second slider. The slider block plays the role of resisting the return of the second slider and tightening the second slider.

[0012] The tightening block is arranged on the side of the inclined surface B of the second slider. The tightening block is fixed on the male template. The tightening block is provided with an inclined surface. When the mold is in the closed state, the inclined surface resists the inclined surface B of the second slider.

[0013] Preferably, one end of the slider pressure block is fixed on the male template, and the other end resists the side wing. During the mold opening and closing process, the first slider and the second slider reciprocate relative to the male template respectively, and the slider pressure block can guide and resist the side wing.

[0014] Preferably, a groove is provided on the inclined surface C of the second slider, and a wear-resistant plate is provided in the groove. The wear-resistant plate replaces the mutual friction between the inclined surface C of the second slider and the slider bundle, thereby preventing the second slider from being worn, and the slider bundle slides more smoothly along the wear-resistant plate.

[0015] Preferably, an elastic element is provided at the tail of the second slider, and the elastic element is sleeved on a screw. The screw passes through the elastic element and a mounting block, and is locked to the second slider. The mounting block is fixed on the male template so that the elastic element is compressed and disposed between the screw head and the mounting block.

[0016] The beneficial effect of the present invention is that by setting a second slider, the first slider is dragged to move by the second slider. During the injection molding process, the two sides to the middle of the first slider are all blocked by the second slider, and a tightening block is provided at the inclined surface B of the second slider. The tightening block is fixed on the male template. The tightening block and the second slider together help the first slider to resist the injection pressure, increase the stability of the first slider under the injection pressure, thereby reducing the step and burr of the product and improving the yield rate. A slider structure of the present invention is used in an in-mold transfer mold and will not interfere with the film, solving the problem that the mold structure cannot meet the injection molding requirements of the product due to the appearance or functional requirements of the product.

Brief Description of the Drawings

[0017] Figure 1 This is a schematic diagram of a female mold plate and a male mold plate of a preferred embodiment of a slider structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the position of a preferred embodiment of a slider structure of the present invention in an in-mold transfer mold.

[0019] Figure 3 It is an overall schematic diagram of a preferred embodiment of a slider structure of the present invention.

[0020] Figure 4 It is an exploded schematic diagram of a preferred embodiment of a slider structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the first slider of a preferred embodiment of a slider structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the second slider in a preferred embodiment of a slider structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the second slider in another direction of a preferred embodiment of a slider structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the mold opening state of a preferred embodiment of a slider structure of the present invention. [Specific implementation method]

[0025] To further illustrate the technical means and effects of the present invention, the following is a detailed description in conjunction with the embodiments of the present invention and the accompanying drawings.

[0026] The present invention provides a slider structure 30, which is applied to a mold. In this embodiment, the mold is an in-mold transfer mold, which includes a mother mold plate 10 and a male mold plate 20. During the injection molding process, the film 11 passes between the mother mold plate 10 and the male mold plate 20. The slider structure 30 is a slider for the film 11 in the in-and-out direction. The slider structure 30 includes:

[0027] The first slider 100 is provided in the male template 20 and is in a T-shape as a whole. It is divided into two sides 110 and a middle part 120. The two sides 110 are respectively provided with inclined surfaces 111. The two inclined surfaces 111 respectively make the outer edges of the two sides 110 shrink inward, so that the cross-sectional area of ​​the first slider 100 near the middle part 120 is larger and the cross-sectional area of ​​the outer edges of the two sides 110 is smaller. The two inclined surfaces 111 are respectively provided with steps 112 extending outward. The steps 112 are provided with raised guide rails 113. The guide rails 113 are inclined. The first slider 100 is provided with a tilting direction consistent with the tilted surface 111. The outer edges of both sides 110 of the first slider 100 are further provided with outwardly extending side wings 610. The first slider 100 is movably connected to the male template 20 by the slider pressing block 600 to resist the side wings 610. The first slider 100 can reciprocate relative to the male template 20. The middle portion 120 of the first slider 100 is provided with an extension end 121. The extension end 121 is provided at one end of the first slider 100, and the other end is a molded product portion 122.

[0028] The second slider 200 is arranged in the male template 20 and is in the shape of a rectangular parallelepiped as a whole. It is divided into a head 210, a middle part 220, and a tail 230. The head 210 is provided with an inclined surface A211, which is in contact with the inclined surface 111 of the first slider 100. The opposite side of the inclined surface A211 is provided with an inclined surface B212. The inclined surface A211 and the inclined surface B212 make the head 210 of the second slider 200 shrink inward. The middle part 220 of the second slider 200 is provided with an oblique through hole 221. The second slider The tail portion 230 of the block 200 is provided with an inclined surface C231. Side wings 610 extending outward are provided on both sides of the second slider 200. The second slider 200 is movably connected to the male plate 20 via the slider pressing block 600 to resist the side wings 610. The second slider 200 can reciprocate relative to the male plate 20, and the reciprocating motion direction is perpendicular to the reciprocating motion direction of the first slider 100. There are two second sliders 200, which are symmetrically distributed around the extended end 121 of the first slider 100.

[0029] The bottom surface 240 of the second slider 200 is close to the male mold plate 20. A guide groove 241 is provided at the intersection of the bottom surface 240 and the inclined surface A211. The guide groove 241 is inclined, and the inclination direction is consistent with the guide rail 113 of the first slider 100. The second slider 200 is respectively fitted on the guide rail 113 of the first slider 100 through the guide grooves 241. During the mold opening and closing process, the second sliders 200 move to drag the first slider 100. The sides 110 to the middle 120 of the first slider 100 are all resisted by the second sliders 200. The second slider 200 helps the first slider 100 resist the injection pressure and does not protrude from the surface of the first slider 100 to avoid interference with the film 11.

[0030] The lever 300 has one end fixed to the mother template 10 and avoids the position where the film 11 passes through, and the other end obliquely passes through the oblique through-hole 221 of the second slider 200 to move the second slider 200. In this embodiment, the lever 300 is fixed to the mother template 10 via a lever mounting block 310, which is fixed to the mother template 10.

[0031] The slider bundle block 400 has one end fixed on the mother template 10 and avoids the position where the film 11 passes through. The other end is provided with a slope 410. The slope 410 causes the slider bundle block 400 to shrink inward. During the mold opening and closing process, the slope 410 slides along the slope C231 of the second slider 200. In this embodiment, a groove 232 is provided on the slope C231 of the second slider 200. A wear-resistant plate 233 is provided in the groove 232. The wear-resistant plate 233 replaces the mutual friction between the slope C231 of the second slider 200 and the slider bundle block 400, thereby preventing the second slider 200 from being worn. The slider bundle block 400 slides more smoothly along the wear-resistant plate 233. The slider bundle block 400 serves to prevent the second slider 200 from returning to its original position and tighten the second slider 200.

[0032] The tightening block 500 is arranged on the side of the inclined surface B212 of the second slider 200. The tightening block 500 is fixed on the male template 20. The tightening block 500 is provided with an inclined surface 510. When the mold is in the closed state, the inclined surface 510 resists the inclined surface B212 of the second slider 200, thereby helping the first slider 100 to resist the injection pressure together with the second slider 200. The tightening block 500 does not protrude from the surface of the first slider 100 to avoid interference with the film 11.

[0033] In this embodiment, one end of the slider pressing block 600 is fixed on the male template 20, and the other end resists the side wing 610. During the mold opening and closing process, the first slider 100 and the second slider 200 reciprocate relative to the male template 20 respectively, and the slider pressing block 600 plays the role of guiding and resisting the side wing 610.

[0034] In this embodiment, the tail portion 230 of the second slider 200 is provided with an elastic element 250. The elastic element 250 is sleeved on a screw 251. The screw 251 passes through the elastic element 250 and a mounting block 252, and is then locked to the second slider 200. The mounting block 252 is fixed to the male template 20, so that the elastic element 250 is compressed and disposed between the screw head 253 and the mounting block 252.

[0035] The following is an actuation process of a slider structure 30 of the present invention:

[0036] When the mold is opened, because the lever 300 is fixed on the female template 10, the female template 10 carries the lever 300 to move relative to the male template 20, and because the second slider 200 is arranged in the male template 20, the lever 300 moves relative to the second slider 200. Moreover, because the lever 300 obliquely penetrates the oblique through-hole 221 of the second slider 200, when the lever 300 moves relative to the second slider 200, the second slider 200 is driven to move in a direction perpendicular to the mold opening direction. At the same time, the elastic element 250 (a spring in this embodiment) is pressed. Under the auxiliary action, the second slider 200 moves more smoothly; because the first slider 100 is arranged in the male mold plate 20 and is movably connected to the male mold plate 20 by the slider pressing block 600 resisting the side wings 610, and because the second slider 200 is embedded in the guide rail 113 of the first slider 100 through the guide groove 241, and the guide rail 113 and the guide groove 241 are inclined, when the second slider 200 moves, it will drive the first slider 100 to move, and the movement direction of the first slider 100 and the movement direction of the second slider 200 are perpendicular to each other;

[0037] When the next mold is closed, the second slider 200 moves under the action of the shift rod 300, and the slider bundle block 400 prevents the second slider 200 from returning and tightens the second slider 200. The second slider 200 is engaged with the guide rail 113 of the first slider 100 through the guide groove 241, so when the second slider 200 moves back, it will drive the first slider 100 to move back.

[0038] In summary, the beneficial effect of the present invention is that by providing the second slider 200, the first slider 100 is dragged to move by the second slider 200. During the injection molding process, the two sides 110 to the middle 120 of the first slider 100 are all blocked by the second slider 200, and a tightening block 500 is provided at the inclined surface B212 of the second slider 200. The tightening block 500 is fixed on the male template 20. The tightening block 500 is provided with an inclined surface 510, which blocks the inclined surface B212 of the second slider 200. Therefore, the tightening block 500 and the second slider 200 together help the first slider 100 to resist the injection pressure, increase the stability of the first slider 100 under the injection pressure, thereby reducing the step difference and burr of the product and improving the yield rate. A slider structure 30 of the present invention is used in an in-mold transfer mold and will not interfere with the film 11, thereby solving the problem that the mold structure cannot meet the injection molding requirements of the product due to the appearance or functional requirements of the product.

[0039] It should be pointed out that the present invention is not limited to the above-mentioned implementation mode, and any simple modification, equivalent change and modification made to the above-mentioned embodiment based on the technical solution of the present invention by any technician familiar with the profession shall fall within the protection scope of the present invention.

Claims

1. A slider structure, used in a mold, the mold comprising a female mold plate and a male mold plate, characterized in that: The slider structure includes: The first slider is provided in the male template and is divided into two sides and a middle part. The two sides are respectively provided with inclined surfaces. The two inclined surfaces respectively make the outer edges of the two sides shrink inward, so that the cross-sectional area of ​​the first slider near the middle is larger, and the cross-sectional area of ​​the outer edges of the two sides is smaller. The two inclined surfaces are respectively provided with steps extending outward, and the steps are provided with raised guide rails. The guide rails are inclined and the inclination direction is consistent with the inclined surfaces. The outer edges of the two sides of the first slider are also provided with side wings extending outward. The first slider is movably connected to the male template by a slider pressure block to resist the side wings. The first slider can reciprocate relative to the male template. An extended end is provided in the middle of the first slider, and the extended end is provided at one end of the first slider, and the other end is a formed product portion. The second slider is provided in the male template and is divided into a head, a middle part, and a tail part. The head part is provided with an inclined surface A, which is in contact with the inclined surface of the first slider. An inclined surface B is provided on the opposite side of the inclined surface A. The inclined surfaces A and B cause the head part of the second slider to retract inward. An oblique through-hole is provided in the middle part of the second slider. An inclined surface C is provided at the tail part of the second slider. Side wings extending outward are provided on both sides of the second slider. The second slider is movably connected to the male template by a slider pressure block to resist the side wings. The second slider can reciprocate relative to the male template, and the reciprocating motion direction is perpendicular to the reciprocating motion direction of the first slider. There are two second sliders, which are symmetrically distributed with the extending end of the first slider as the center; The bottom surface of the second slider is close to the male mold plate, and a guide groove is provided at the intersection of the bottom surface and the inclined surface A. The second slider is respectively engaged with the guide rail of the first slider through the guide groove. During the mold opening and closing process, the second slider moves and drags the first slider to move; A shifting rod, one end of which is fixed to the mother template, and the other end of which is obliquely inserted through the oblique through-hole of the second slider, for shifting the second slider to move; The slider block has one end fixed to the mother mold plate and the other end provided with an inclined surface. The inclined surface causes the slider block to flex inward. During the mold opening and closing process, the inclined surface slides along the inclined surface C of the second slider. The slider block serves to prevent the second slider from returning to its original position and tighten the second slider. The tightening block is arranged on the side of the inclined surface B of the second slider. The tightening block is fixed on the male template. The tightening block is provided with an inclined surface. When the mold is in the closed state, the inclined surface resists the inclined surface B of the second slider.

2. A slider structure according to claim 1, characterized in that: The slider pressure block has one end fixed on the male template and the other end against the side wing. During the mold opening and closing process, the first slider and the second slider reciprocate relative to the male template respectively, and the slider pressure block plays a guiding role.

3. The slider structure according to claim 1, wherein: A groove is provided on the inclined surface C of the second slider, and a wear-resistant plate is provided in the groove. The wear-resistant plate replaces the mutual friction between the inclined surface C of the second slider and the slider bundle block, thereby preventing the second slider from being worn, and the slider bundle block slides more smoothly along the wear-resistant plate.

4. A slider structure according to claim 1, characterized in that: An elastic element is provided at the tail of the second slider, and the elastic element is sleeved on a screw. The screw passes through the elastic element and a mounting block, and is locked on the second slider. The mounting block is fixed on the male template so that the elastic element is compressed and disposed between the screw head and the mounting block.

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