A slider beam block mechanism for an in-mold transfer mold

Abstract

The present invention relates to the field of in-mold transfer and mold technology, and in particular to a slider block mechanism for an in-mold transfer mold. The slider block mechanism includes: an inclined guide post pressure block, which is fixed on the inclined guide post with one end fixed on the mother template; a slider, which is arranged in the male template, including a slider body and a slider insert, wherein the slider body is provided for the other end of the inclined guide post pressure block to slide and insert, and the slider insert is locked on one end of the slider body; the slider block mechanism includes a first slider block, a second slider block and a hydraulic cylinder, one end of the first slider block is fixed on the mother template, and abuts against both ends of the slider when the mold is closed; one end of the second slider block is fixed to the lifting end of the hydraulic cylinder through a T-slot, and the other end can abut against the middle of the slider after the mold is closed. The beneficial effect of the present invention is that it can better tighten the two ends and the middle of the slider during mold closing and injection molding without interfering with the film, thereby enhancing the stability of the slider under injection pressure, thereby reducing the step difference and burrs of the product and improving the yield rate.

Description

Technical field

[0001] The invention relates to the technical field of in-mold transfer and molds, in particular to a slider bundle block mechanism for an in-mold transfer mold. [Background Technology]

[0002] In today's era of injection molding, which emphasizes simplicity and low pollution, in-mold printing (IMR) offers an excellent solution for the industry. Many electronic products, such as laptop keyboards, utilize 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. Existing in-mold printing molds typically only have slider blocks at each end of the slider in the film's inlet and outlet directions to resist injection pressure. However, when processing larger products, the lack of a slider block in the middle of the slider to secure it often results in step differences and burrs. In more serious cases, the slider can deform due to the injection pressure, increasing repair costs and reducing product yields.

[0003] In view of this, it is necessary to develop a slider bundle block mechanism for an in-mold transfer mold to solve the above problems. [Summary of the invention]

[0004] Therefore, the purpose of the present invention is to provide a slider bundle block mechanism for an in-mold transfer mold. By arranging slider bundle blocks at both ends and the middle position of the slider in the direction of film entry and exit, the slider bundle block in the middle position of the slider is controlled by a hydraulic cylinder to raise and lower the slider. This can better support the bundled slider during mold closing and injection molding, and will not interfere with the film, thereby enhancing the stability of the 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 objectives, the present invention provides a slider bundle block mechanism for an in-mold transfer mold to solve the above problems.

[0006] The present invention solves the technical problem by providing a slider block mechanism for an in-mold transfer mold, which is applied to the in-mold transfer mold. The in-mold transfer mold includes a mother mold plate and a male mold plate. The slider block mechanism includes:

[0007] An inclined guide column pressing block is sleeved and fixed on the inclined guide column, and one end of the inclined guide column pressing block is fixed on the mother template after being sleeved on the inclined guide column;

[0008] The slider is arranged in the male template and includes a slider body and a slider insert. The two ends of the slider body are protruded with guide post hole blocks. The guide post hole block has an inclined surface. The guide post hole block is provided with an inclined guide post hole for the inclined guide post to slide and insert therein. The inclined guide post hole cooperates with the inclined guide post to guide the movement of the slider.

[0009] The two ends of the contact surface between the slider body and the male mold plate extend to both sides to form two step-shaped extensions. The end of the slider body away from the mold core is a convex surface, which is formed by the intersection of the inclined surface on the side close to the female mold plate and the inclined surface on the side close to the male mold plate. A concave surface is also provided in the middle of the inclined surface close to the male mold plate. The slider insert is locked on the side of the slider body close to the mold core to form an undercut of the product.

[0010] A slider pressing block, one end of which is fixed to the male mold plate, and a sliding space is left between the other end and the male mold plate. During the mold opening and closing process, the slider pressing block can press and guide the extension of the slider body to slide in the sliding space;

[0011] The slider bundle mechanism includes a first slider bundle, a second slider bundle, and a hydraulic cylinder: one end of the first slider bundle is fixed to the mother mold plate, and the other end is condensed inward to form a first condensed portion. The first slider bundle is used to abut against both ends of the slider body during mold closing. The first slider bundle has an inclined surface corresponding to the inclined surface of the guide post hole block. During the mold opening and closing process, the inclined surface of the first slider bundle slides along the inclined surface of the guide post hole block.

[0012] The second slider bundle block has one end that is condensed inward to form a second condensed portion. The second slider bundle block can abut against the middle of the tightening slider body during mold closing and injection molding. The other end of the second slider bundle block is provided with a T-slot. The end with the T-slot is fixed to the lifting end of the hydraulic cylinder. Correspondingly, the lifting end of the hydraulic cylinder is configured to have a T-shaped cross-section. The second slider bundle block is detachably fixed to the lifting end of the hydraulic cylinder through the T-slot. The second slider bundle block can be controlled to rise and fall by the hydraulic cylinder, and the hydraulic cylinder is fixed in the male template.

[0013] The second stopper has one end fixed on the male template and the other end having a concave surface. The shape of the concave surface is fitted with one side of the second condensed end of the second slider bundle. After mold closing, the concave surface and the concave surface in the middle of the slider body form an accommodating space. The accommodating space can just accommodate the second condensed end of the second slider bundle. The second stopper can help the second slider bundle to press and fix the slider body, and the concave surface of the second stopper and the concave surface in the middle of the slider body can cooperate to limit the second slider bundle so that it does not protrude from the surface of the slider body, thereby avoiding interference with the film.

[0014] Preferably, the guide post hole block is provided with a wear-resistant plate on the sliding contact surface with the first slider bundle block to prevent wear between the guide post hole block and the first slider bundle block.

[0015] Preferably, a first stopper is further provided on the male mold plate, one end of which is fixed on the male mold plate, and the other end of which just abuts against the first contraction portion of the first slider bundle when the mold is closed, which can fix the first slider bundle and thus help the slider to resist the injection pressure.

[0016] The beneficial effect of the present invention is that by arranging slider bundle blocks at both ends and the middle position of the slider in the direction of film entry and exit, the slider bundle blocks in the middle position of the slider are controlled by the hydraulic cylinder to rise and fall, which can better support the tightening slider during mold closing and injection molding without interfering with the film, thereby enhancing the stability of the slider under injection pressure, thereby reducing the step difference and burrs of the product and improving the yield rate.

Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of a female mold plate and a male mold plate of a mold where a slider bundle block mechanism is located for an in-mold transfer mold of the present invention.

[0018] Figure 2 It is an overall schematic diagram of a slider bundle block mechanism for an in-mold transfer mold of the present invention.

[0019] Figure 3 The present invention is a schematic diagram of the mold closing state of a slider bundle block mechanism for an in-mold transfer mold.

[0020] Figure 4 It is an enlarged schematic diagram of the connection position between the second slider bundle and the hydraulic cylinder of a slider bundle mechanism for an in-mold transfer mold of the present invention.

[0021] Figure 5 The diagram is an exploded view of a slider bundle mechanism for an in-mold transfer mold according to the present invention.

[0022] Figure 6 The present invention is a side view of a slider bundle block mechanism used for an in-mold transfer mold during mold closing.

[0023] Figure 7 The present invention is a schematic diagram of the initial stage of mold opening of a slider bundle block mechanism for an in-mold transfer mold. [Specific implementation method]

[0024] 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.

[0025] The present invention provides a slider block mechanism for an in-mold transfer mold, which is applied to the in-mold transfer mold. The in-mold transfer mold includes a mother mold plate 1 and a male mold plate 2. The slider block mechanism includes:

[0026] The inclined guide column pressing block 10 is sleeved and fixed on the inclined guide column 11. After the inclined guide column pressing block 10 is sleeved on the inclined guide column 11, one end thereof is fixed on the mother template 1;

[0027] The slider 3 is arranged in the male template 2 and includes a slider body 30 and a slider insert 31. The two ends of the slider body 30 are provided with guide post hole blocks 301. The guide post hole block 301 has an inclined surface and an inclined guide post hole 302 is opened on the guide post hole block 301. The inclined guide post 11 can be slidably inserted into the guide post hole 302. The guide post hole block 301 cooperates with the inclined guide post 11 to guide the movement of the slider 3.

[0028] The two ends of the contact surface between the slider body 30 and the male mold plate 2 extend to both sides, forming two stepped extensions 303. The end of the slider body 30 away from the mold core is a convex surface, which is formed by the intersection of the inclined surface on the side close to the female mold plate 1 and the inclined surface on the side close to the male mold plate 2. A concave surface is also provided in the middle of the inclined surface close to the male mold plate 2. The slider insert 31 is locked on the side of the slider body 30 close to the mold core to form an undercut of the product.

[0029] The slider pressing block 21 has one end fixed to the male mold plate 2 and a sliding space between the other end and the male mold plate 2. During the mold opening and closing process, the slider pressing block 21 can press and guide the extension portion 303 of the slider body 30 to slide in the sliding space;

[0030] The slider bundle block mechanism 4 includes a first slider bundle block 40, a second slider bundle block 41 and a hydraulic cylinder 42: one end of the first slider bundle block 40 is fixed to the mother template 1, and the other end is condensed inward to form a first condensation portion 400. The first slider bundle block 40 is used to support the two ends of the slider body 30 when the mold is closed. The first slider bundle block 40 has an inclined surface corresponding to the inclined surface of the guide post hole block 301. During the mold opening process, the inclined guide post 11 moves the slider 3 to exit the product along the inclined guide post 11. The first slider bundle block 40 moves out of the mold along the mother template 1. When the first slider block 40 is separated from the slider body 30, the inclined surface of the first slider block 40 slides along the inclined surface of the guide post hole block 301 to complete the separation from the slider body 30; when the mold is closed, the first slider block 40 moves toward the slider body 30 along the mother mold plate 1, and the inclined surface of the first slider block 40 slides along the inclined surface of the guide post hole block 301 to press against the two ends of the slider body 30, and the guide post hole block 301 and the first slider block 40 are provided with wear-resistant plates 304 on the sliding contact surface to prevent wear between the guide post hole block 301 and the first slider block 40;

[0031] The second slider bundle block 41 has one end that is condensed inward to form a second condensed portion 410, which can be used to press against the middle of the tightening slider body 30 during mold closing and injection molding. The second condensed portion 410 has a trapezoidal cross-section, and a T-slot 411 is provided at the other end. The end with the T-slot 411 is fixed to the lifting end 420 of the hydraulic cylinder 42. Correspondingly, the lifting end 420 of the hydraulic cylinder 42 is configured to have a T-shaped cross-section. The second slider bundle block 41 is detachably fixed to the lifting end 420 of the hydraulic cylinder 42 via the T-slot 411. The second slider bundle block 41 can be controlled to rise and fall by the hydraulic cylinder 42, and the hydraulic cylinder 42 is fixed to the male template 2.

[0032] The second stopper 22 has one end fixed on the male template 2 and the other end as a concave surface. The shape of the concave surface is fitted with one side of the second contraction portion 410 of the second slider bundle 41. When the mold is closed, the concave surface and the concave surface in the middle of the slider body 30 form a trapezoidal accommodating space. The accommodating space can just accommodate the second contraction portion 410 of the second slider bundle 41. The second stopper 22 can help the second slider bundle 41 to press and fix the slider body 30, and the concave surface of the second stopper and the concave surface in the middle of the slider body can cooperate to limit the second slider bundle so that it does not protrude from the surface of the slider body to avoid interference with the film.

[0033] The male mold plate is also provided with a first stopper 20, one end of which is fixed to the male mold plate 2, and the other end of which abuts against the first contraction portion 400 of the first slider bundle block 40 when the mold is closed, which can fix the first slider bundle block 40 and thus help the slider 3 to resist the injection pressure.

[0034] The mother mold plate 1 is also provided with a film pressing frame 12 for pressing the film 5 onto the surface of the product when the mold is closed.

[0035] The working process of the present invention is as follows: when the mold is closed, the two first slider bundle blocks 40 at both ends of the slider 3 respectively press and fix the two ends of the slider body 30, and the first stop block 20 presses against the first condensation portion 400 of the first slider bundle block 40. At this time, the oil hydraulic cylinder 42 is controlled to drive the second slider bundle block 41 to move toward the slider 3 until the second slider bundle block 41 completely enters the accommodation space formed by the second stop block 22 and the concave surface of the slider body 30. At this time, the second slider bundle block 41 tightens the slider 3, and the second stop block 22 presses against the second slider bundle block 41 to help it press and fix the slider 3, and injection molding starts. The film feeding machine (not shown in the figure) feeds the film 5 into the mold, and the film pressing frame 12 presses the film 5 on the product to fit the product;

[0036] When the product is processed and needs to be taken out, in the initial stage of mold opening, the hydraulic cylinder 42 is controlled to make the second slider block 41 withdraw from the above-mentioned accommodation space first; then the mold opening action continues, the mold between the male template 2 and the female template 1 is gradually opened, the slider 3 slides out along the inclined guide column 11, and the slider body 30 drives the slider insert 31 to withdraw from the product, and then the processed product is taken out.

[0037] To sum up, the beneficial effect of the present invention is that by arranging slider bundle blocks at both ends and the middle position of the slider 3 in the direction of entry and exit of the film 5, the hydraulic cylinder 42 controls the lifting and lowering of the second slider bundle block 41, which can better resist the tightening slider 3 during mold closing and injection molding, and will not interfere with the film 5, thereby enhancing the stability of the slider 3 under injection pressure, thereby reducing the step difference and burrs of the product and improving the yield rate.

[0038] 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 block mechanism for an in-mold transfer mold, which is applied to an in-mold transfer mold. The in-mold transfer mold includes a mother mold plate and a male mold plate, and is characterized in that: The slider bundle mechanism includes: An inclined guide column pressing block is sleeved and fixed on the inclined guide column, and one end of the inclined guide column pressing block is fixed to the mother template after being sleeved on the inclined guide column; The slider is arranged in the male template and includes a slider body and a slider insert. The two ends of the slider body are protruded with guide post hole blocks. The guide post hole block has an inclined surface and an inclined guide post hole is opened on the guide post hole block for the inclined guide post to slide and insert therein. The two ends of the contact surface between the slider body and the male template extend to both sides to form two step-shaped extensions. The end of the slider body away from the mold core is a convex surface, which is formed by the intersection of the inclined surface on the side close to the female template and the inclined surface on the side close to the male template. A concave surface is also provided in the middle of the inclined surface close to the male template. The slider is locked on the side of the slider body close to the mold core. A slider pressing block, one end of which is fixed to the male mold plate, and a sliding space is left between the other end and the male mold plate. During the mold opening and closing process, the slider pressing block can press and guide the extension of the slider body to slide in the sliding space; A first slider block, one end of which is fixed to the mother mold plate, and the other end of which is condensed inward to form a first condensed portion. The first slider block has an inclined surface corresponding to the inclined surface of the guide post hole block. During the mold opening and closing process, the inclined surface of the first slider block slides on the inclined surface of the guide post hole block; The second slider block has one end that is inwardly condensed to form a second condensed portion, and the other end is provided with a T-slot, and the end with the T-slot is fixed to the lifting end of the hydraulic cylinder. Correspondingly, the lifting end of the hydraulic cylinder is configured to have a T-shaped cross-section. The second slider block is detachably fixed to the lifting end of the hydraulic cylinder through the T-slot. The second slider block can be controlled to rise and fall by the hydraulic cylinder, and the hydraulic cylinder is fixed in the male template; The second stopper has one end fixed on the male template and the other end having a concave surface. The shape of the concave surface is fitted with one side of the second contraction portion of the second slider bundle. When the mold is closed, the concave surface and the concave surface in the middle of the slider body form an accommodating space. The accommodating space can just accommodate the second contraction portion of the second slider bundle, so that the second slider bundle does not protrude from the surface of the slider body, thereby avoiding interference with the film.

2. The slider and block mechanism for an in-mold transfer mold according to claim 1, wherein: A wear-resistant plate is provided on the sliding contact surface between the guide post hole block and the first slider bundle block to prevent wear between the guide post hole block and the first slider bundle block.

3. The slider and block mechanism for an in-mold transfer mold according to claim 1, wherein: The male mold plate is also provided with a first stopper, one end of which is fixed to the male mold plate, and the other end of which can just abut against the first contraction portion of the first slider bundle block when the mold is closed.

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