Film insert in-mold decoration injection molding mold

Abstract

The utility model belongs to the technical field of injection molding, and discloses a film insert in-mold decoration injection molding mold which comprises a jacking mechanism, a base mechanism is arranged on the surface of the jacking mechanism, an injection molding mechanism is arranged above the base mechanism, the jacking mechanism comprises an air cylinder, the side face of the air cylinder is connected with a telescopic rod in a sliding mode, and the telescopic rod is connected with the injection molding mechanism in a sliding mode. And a supporting sliding block is fixedly connected to the end, away from the air cylinder, of the telescopic rod, two supporting plates are fixedly connected to the side face of the supporting sliding block, two arc-shaped grooves are formed in the surface of each supporting plate, and sliding rods are slidably connected to the interiors of the two arc-shaped grooves correspondingly. A telescopic rod in an air cylinder pushes a supporting sliding block to move, a rolling wheel rolls and moves upwards on the surface of the supporting sliding block, meanwhile, a sliding rod slides and moves upwards on the surface of an arc-shaped groove, and therefore a connecting plate is driven to move upwards, a thin film insert is ejected out through an ejection block, then the thin film insert is taken out, and the effect that the thin film insert is conveniently discharged is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, in particular to a film insert in-mold decoration injection molding die. Background Art

[0002] With the development of modern industrial products, industrial products have an increasingly higher demand for their product appearance decoration. In-mold decorative injection molding technology combines film printing, preforming and injection molding technologies and methods to manufacture molds for plastic products with decorative film inserts. This mold technology combines injection molding and in-mold decoration. It can embed the prefabricated decorative film into the interior of the part while injection molding the plastic part, thereby achieving a one-time molding decorative effect. The surface of the finished product has a layer of transparent plastic film to protect the underlying printed pattern from being scratched, and the pattern can remain durable. Therefore, this technology is increasingly widely used in injection molds to produce various electrical housing injection molded parts with printed pattern appearances.

[0003] According to the disclosed patent film insert in-mold decoration injection molding mold with publication number CN201721009564.7: it includes an upper mold base and a lower mold base, the upper mold base is driven to rise and fall by a driving device; an upper mold core is installed on the upper mold base, an upper mold cavity is arranged on the lower surface of the upper mold core, an injection notch is arranged in the upper mold cavity, a lower mold core is arranged on the lower mold base, a lower mold cavity is arranged on the lower mold core, after mold closing, the upper mold cavity and the lower mold cavity are closed to form a mold cavity; a film insert is placed in the mold cavity, and an injection space is formed between the film insert and the upper mold cavity for forming a decorative film; an ejection pin is also arranged in the upper mold core; an adsorption port is arranged on the lower mold core, and a sliding positioning mechanism is also included for positioning the film insert in the mold cavity. During the mold closing process, the utility model simultaneously fixes the film insert, and the film insert is not easy to fall out of the mold cavity, thereby improving production efficiency, reducing losses and effectively protecting the mold.

[0004] Although the mold cavity of the above-mentioned film insert in-mold decoration injection molding mold is shallow, in the absence of a lifting structure, the film insert needs to be manually removed from the mold cavity, which can easily cause wear to the decorative film during removal. Therefore, we propose a film insert in-mold decoration injection molding mold. Utility Model Content

[0005] In order to solve the problem in the above background technology that in the absence of a lifting structure, the film insert needs to be taken out from the mold cavity manually, which easily causes wear to the decorative film during the removal, the utility model provides a film insert in-mold decorative injection molding mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes a jacking mechanism, a base mechanism is arranged on the surface of the jacking mechanism, an injection molding mechanism is arranged above the base mechanism, the jacking mechanism includes a cylinder, a telescopic rod is slidably connected to the side of the cylinder, the end of the telescopic rod away from the cylinder is fixedly connected to a supporting slider, the side of the supporting slider is fixedly connected to two supporting plates, the surface of the supporting plate is provided with two arc grooves, the insides of the two arc grooves are slidably connected to sliding rods, the surface of the sliding rod is rotatably connected to a roller, the surface of the sliding rod is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a plurality of top blocks, and the bottom of the connecting plate is fixedly connected to a plurality of supporting rods.

[0007] Preferably, the roller is located between two support plates, the roller is located above the support slider, the roller is slidingly connected to the support slider, the several top blocks are symmetrically distributed with the connecting plate as the center, the several support rods are symmetrically distributed with the connecting plate as the center, the shape of the arc groove is "S" shape, and the shape of the arc surface on the top of the support slider is adapted to the shape of the arc groove.

[0008] Preferably, the base mechanism includes a lower mold base, a first slide groove is provided inside the lower mold base, a lower mold cavity is provided on the top of the lower mold base, two second slide grooves are provided on the top of the lower mold base, the inner wall of the second slide groove is fixedly connected with a spring, the inner wall of the second slide groove is elastically connected to the bottom of the wedge-shaped slider through the spring, a positioning slider is fixedly connected to the side of the wedge-shaped slider close to the lower mold cavity, a film insert is clamped on the top of the lower mold cavity, and a decorative film is fixedly connected to the top of the film insert.

[0009] Preferably, the two second slide grooves are symmetrically distributed with the lower mold cavity as the center, the wedge-shaped slider is slidably connected to the second slide groove, and the positioning slider is located above the second slide groove.

[0010] Preferably, the support slider is slidably connected to the first slide groove, the connecting plate is slidably connected to the first slide groove, the top of the top block passes through the inner wall of the first slide groove and extends to the interior of the lower mold cavity, and the support rod is slidably connected to the first slide groove.

[0011] Preferably, the injection molding mechanism includes an upper mold base, an injection hole is opened on the surface of the upper mold base, two driving blocks are fixedly connected to the bottom of the upper mold base, an upper mold cavity is opened at the bottom of the upper mold base, a plurality of ejector pins are slidably connected inside the upper mold base, and two grooves are opened at the bottom of the upper mold base.

[0012] Preferably, the upper mold cavity is clamped with the decorative film, the size of the groove is matched with the size of the positioning slider, the upper mold cavity is located between the two grooves, the two driving blocks are respectively located above the two wedge-shaped sliders, and the injection hole passes through the surface of the upper mold base and extends to the interior of the upper mold cavity.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model enables the telescopic rod inside the cylinder to push the supporting slide block to move, so that the roller rolls upward on the surface of the supporting slide block, and at the same time the slide bar slides upward on the surface of the arc groove, thereby driving the connecting plate upward, so that the top block pushes out the film insert, and then the film insert can be taken out. Not only is it easy to unload the film insert, but it can also avoid the wear of the decorative film when the film insert is unloaded. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the base mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the injection molding mechanism of the utility model when viewed from above;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the jacking mechanism of the utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the jacking mechanism of the utility model;

[0020] Figure 6 It is a cross-sectional structural diagram of the base mechanism of the utility model.

[0021] In the figure: 1. lifting mechanism; 101. cylinder; 102. telescopic rod; 103. supporting slider; 104. supporting plate; 105. arc groove; 106. sliding rod; 107. roller; 108. connecting plate; 109. lifting block; 110. supporting rod; 2. base mechanism; 201. lower mold base; 202. first slide groove; 203. lower mold cavity; 204. second slide groove; 205. spring; 206. wedge-shaped slider; 207. positioning slider; 208. film insert; 209. decorative film; 3. injection mechanism; 301. upper mold base; 302. injection hole; 303. driving block; 304. upper mold cavity; 305. ejector pin; 306. groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 4 to 6 As shown, the utility model provides an injection molding mold for in-mold decoration of a film insert, comprising a lifting mechanism 1, a base mechanism 2 is arranged on the surface of the lifting mechanism 1, an injection molding mechanism 3 is arranged above the base mechanism 2, the lifting mechanism 1 comprises a cylinder 101, a telescopic rod 102 is slidably connected to the side of the cylinder 101, an end of the telescopic rod 102 away from the cylinder 101 is fixedly connected to a supporting slider 103, two supporting plates 104 are fixedly connected to the side of the supporting slider 103, two arc grooves 105 are provided on the surface of the supporting plate 104, sliding rods 106 are slidably connected inside the two arc grooves 105, a roller 107 is rotatably connected to the surface of the sliding rod 106, a connecting plate 108 is fixedly connected to the surface of the sliding rod 106, a plurality of top blocks 109 are fixedly connected to the top of the connecting plate 108, and a plurality of supporting rods 110 are fixedly connected to the bottom of the connecting plate 108.

[0024] The roller 107 is located between the two support plates 104, and the roller 107 is located above the support slider 103. The roller 107 and the support slider 103 are slidingly connected. A number of top blocks 109 are symmetrically distributed around the connecting plate 108, and a number of support rods 110 are symmetrically distributed around the connecting plate 108. The shape of the arc groove 105 is "S"-shaped, and the shape of the arc surface on the top of the support slider 103 is adapted to the shape of the arc groove 105.

[0025] The above scheme is adopted: the telescopic rod 102 inside the cylinder 101 pushes the supporting slider 103 to move, so that the roller 107 rolls upward on the surface of the supporting slider 103, and at the same time the slide rod 106 slides upward on the surface of the arc groove 105, thereby driving the connecting plate 108 upward, so that the top block 109 pushes out the film insert 208, and then the film insert 208 is taken out. This not only achieves the effect of facilitating the unloading of the film insert 208, but also avoids the occurrence of wear on the decorative film 209 when the film insert 208 is unloaded.

[0026] like Figures 1 to 6As shown, the base mechanism 2 includes a lower mold base 201, a first slide groove 202 is opened inside the lower mold base 201, a lower mold cavity 203 is opened on the top of the lower mold base 201, and two second slide grooves 204 are opened on the top of the lower mold base 201. The inner wall of the second slide groove 204 is fixedly connected with a spring 205, and the inner wall of the second slide groove 204 is elastically connected to the bottom of the wedge-shaped slider 206 through the spring 205. The side of the wedge-shaped slider 206 close to the lower mold cavity 203 is fixedly connected with a positioning slider 207, and the top of the lower mold cavity 203 is clamped with a film insert 208, and the top of the film insert 208 is fixedly connected with a decorative film 209.

[0027] The two second slide grooves 204 are symmetrically distributed with the lower mold cavity 203 as the center, the wedge-shaped slider 206 is slidingly connected to the second slide groove 204, the positioning slider 207 is located above the second slide groove 204, the support slider 103 is slidingly connected to the first slide groove 202, the connecting plate 108 is slidingly connected to the first slide groove 202, the top of the top block 109 passes through the inner wall of the first slide groove 202 and extends to the interior of the lower mold cavity 203, and the support rod 110 is slidingly connected to the first slide groove 202.

[0028] The above solution is adopted: a wedge-shaped slider 206 is set to facilitate squeezing the inclined surface when the driving block 303 moves downward, driving the wedge-shaped slider 206 to move toward the lower mold cavity 203, so that the two positioning sliders 207 are close to one side of the lower mold cavity 203 to clamp the film insert 208, thereby facilitating the fixation of the film insert 208.

[0029] like Figure 1 and Figure 4 As shown, the injection mechanism 3 includes an upper mold base 301, an injection hole 302 is opened on the surface of the upper mold base 301, two driving blocks 303 are fixedly connected to the bottom of the upper mold base 301, an upper mold cavity 304 is opened at the bottom of the upper mold base 301, a plurality of ejector pins 305 are slidably connected inside the upper mold base 301, and two grooves 306 are opened at the bottom of the upper mold base 301.

[0030] The upper mold cavity 304 is clamped with the decorative film 209 , the size of the groove 306 is matched with the size of the positioning slider 207 , the upper mold cavity 304 is located between the two grooves 306 , the two driving blocks 303 are respectively located above the two wedge-shaped sliders 206 , and the injection hole 302 passes through the surface of the upper mold base 301 and extends to the interior of the upper mold cavity 304 .

[0031] The above scheme is adopted: by injecting molding material into the mold cavity from the injection hole 302, a decorative film 209 is formed on the upper surface of the film insert 208. After the decorative film 209 is formed, the ejector pin 305 in the upper mold cavity 304 ejects the film insert 208 from the mold, which is convenient for the staff to operate.

[0032] The working principle and use process of the utility model are as follows: first, the film insert 208 is placed inside the lower mold cavity 203, and then the upper mold base 301 is driven downward by an external drive, so that the lower mold cavity 203 and the upper mold cavity 304 are closed to form a mold cavity. In this process, the driving block 303 moves downward to squeeze the inclined surface of the wedge-shaped slider 206, so that the wedge-shaped slider 206 moves toward the direction close to the lower mold cavity 203, so that the two positioning sliders 207 are close to one side of the lower mold cavity 203 to clamp the film insert 208, and at the same time squeeze the spring 205, and then the molding material is injected into the mold cavity from the injection hole 302, and the upper surface of the film insert 208 is formed. The decorative film 209 is formed. After the decorative film 209 is formed, the ejector pin 305 in the upper mold cavity 304 ejects the film insert 208 out of the mold, and then the upper mold base 301 moves upward, so that the wedge-shaped slider 206 moves away from the lower mold cavity 203 under the action of the elastic force of the spring 205, and then the telescopic rod 102 inside the cylinder 101 pushes the supporting slider 103 to move, so that the roller 107 rolls upward on the surface of the supporting slider 103, and at the same time, the slide bar 106 slides upward on the surface of the arc groove 105, thereby driving the connecting plate 108 upward, so that the ejector block 109 ejects the film insert 208, and then the film insert 208 can be taken out.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film insert in-mold decoration injection molding mold, comprising a lifting mechanism (1), characterized in that: The surface of the lifting mechanism (1) is provided with a base mechanism (2), an injection molding mechanism (3) is provided above the base mechanism (2), the lifting mechanism (1) comprises a cylinder (101), a telescopic rod (102) is slidably connected to the side of the cylinder (101), an end of the telescopic rod (102) away from the cylinder (101) is fixedly connected to a support slider (103), and the side of the support slider (103) is fixedly connected to two support plates (104). Two arc grooves (105) are provided on the surface of the plate (104), and the interiors of the two arc grooves (105) are slidably connected with slide bars (106), and the surfaces of the slide bars (106) are rotatably connected with rollers (107), and the surfaces of the slide bars (106) are fixedly connected with a connecting plate (108), and the top of the connecting plate (108) is fixedly connected with a plurality of top blocks (109), and the bottom of the connecting plate (108) is fixedly connected with a plurality of support rods (110).

2. The film insert in-mold decoration injection molding mold according to claim 1, characterized in that: The roller (107) is located between the two support plates (104), the roller (107) is located above the support slider (103), the roller (107) and the support slider (103) are slidably connected, the plurality of top blocks (109) are symmetrically distributed with the connecting plate (108) as the center, the plurality of support rods (110) are symmetrically distributed with the connecting plate (108) as the center, the shape of the arc groove (105) is "S"-shaped, and the shape of the arc surface at the top of the support slider (103) is compatible with the shape of the arc groove (105).

3. The film insert in-mold decoration injection molding mold according to claim 1, characterized in that: The base mechanism (2) comprises a lower die base (201), a first slide groove (202) is provided inside the lower die base (201), a lower die cavity (203) is provided at the top of the lower die base (201), two second slide grooves (204) are provided at the top of the lower die base (201), the inner wall of the second slide groove (204) is fixedly connected with a spring (205), the inner wall of the second slide groove (204) is elastically connected to the bottom of a wedge-shaped slider (206) through the spring (205), a positioning slider (207) is fixedly connected to the side of the wedge-shaped slider (206) close to the lower die cavity (203), a film insert (208) is clamped at the top of the lower die cavity (203), and a decorative film (209) is fixedly connected to the top of the film insert (208).

4. The film insert in-mold decoration injection molding mold according to claim 3, characterized in that: The two second slide grooves (204) are symmetrically distributed with the lower mold cavity (203) as the center, the wedge-shaped slider (206) is slidably connected to the second slide groove (204), and the positioning slider (207) is located above the second slide groove (204).

5. The film insert in-mold decoration injection molding mold according to claim 4, characterized in that: The support slider (103) is slidably connected to the first slide groove (202), the connecting plate (108) is slidably connected to the first slide groove (202), the top of the top block (109) passes through the inner wall of the first slide groove (202) and extends to the inside of the lower mold cavity (203), and the support rod (110) is slidably connected to the first slide groove (202).

6. The film insert in-mold decoration injection molding mold according to claim 3, characterized in that: The injection molding mechanism (3) comprises an upper mold base (301), the surface of the upper mold base (301) is provided with an injection hole (302), the bottom of the upper mold base (301) is fixedly connected with two driving blocks (303), the bottom of the upper mold base (301) is provided with an upper mold cavity (304), the interior of the upper mold base (301) is slidably connected with a plurality of ejection pins (305), and the bottom of the upper mold base (301) is provided with two grooves (306).

7. The film insert in-mold decoration injection molding mold according to claim 6, characterized in that: The upper mold cavity (304) is clamped with the decorative film (209), the size of the groove (306) is matched with the size of the positioning slider (207), the upper mold cavity (304) is located between the two grooves (306), the two driving blocks (303) are respectively located above the two wedge-shaped sliders (206), and the injection hole (302) passes through the surface of the upper mold base (301) and extends to the interior of the upper mold cavity (304).

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