In-mold sheet decoration panel two-material injection mold and process

Abstract

The present application relates to the technical field of automobile parts processing and production, and particularly relates to a double-material injection mold and process for in-mold embedded sheet decorative plate, comprising a movable mold and a fixed mold, wherein the movable mold comprises movable mold one and movable mold two, the movable mold one comprises a core plate one, a synchronous ejection assembly and a spring block assembly, the movable mold two comprises a core plate two, and the fixed mold comprises a cavity fixing plate, a cavity plate and an in-mold embedded sheet positioning mechanism, the present application is scientific and reasonable in design, simple and practical in mechanism, safe and reliable in action, convenient in operation, realizes continuous circulation production of in-mold embedded sheet decorative plate products, reduces labor intensity, improves production efficiency and reduces consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts processing and production, in particular to a double-material injection mold and process for in-mold embedded sheet decorative plate. BACKGROUND

[0002] With the application of light-emitting products in automotive interior parts, the automotive interior plate adopts a pattern on the surface that can realize light transmission, and the middle layer is a transparent substrate. After being combined with the in-mold embedded sheet, light transmission can be realized. The bottom layer is a non-transparent skeleton, and a hollow area is provided in the middle. After being combined with the transparent substrate, the transparent substrate is surrounded by the perimeter, so that the perimeter is not transparent, and the middle hollow area can accommodate the light-emitting device, so that the product can realize local light transmission. The above-mentioned in-mold embedded sheet decorative plate product is produced by using a single injection molding method, which is prone to product defects and is not conducive to improving production efficiency and reducing consumption. SUMMARY

[0003] The purpose of the present application is to solve the above-mentioned problems, and to provide a double-material injection mold and process for in-mold embedded sheet decorative plate, which can produce the above-mentioned products in a cyclic and continuous manner.

[0004] The technical scheme provided by the present application is as follows:

[0005] A double-material injection mold for in-mold embedded sheet decorative plate, comprising a movable mold and a fixed mold, the movable mold comprising a movable mold one and a movable mold two, the movable mold one comprising a core plate one, a core fixing plate one, a core mounting plate one and a core connecting plate one, the core plate one being provided with a core and being fixedly installed on the core mounting plate one, the core mounting plate one being fixedly connected with the core fixing plate one through the core connecting plate one, the core fixing plate one being fixedly installed on one movable plate of an injection molding machine, the movable mold two comprising a core plate two, a core fixing plate two, a core mounting plate two and a core connecting plate two, the core plate two provided with a core being fixedly installed on the core mounting plate two, the core mounting plate two being fixedly connected with the core fixing plate two through the core connecting plate two, the core fixing plate two being fixedly installed on the other movable plate of the injection molding machine, the fixed mold comprising a cavity fixing plate, a cavity plate and an in-mold embedded sheet positioning mechanism, the two cavity fixing plates being fixedly installed on a rotating plate of the injection molding machine and respectively fixedly installed with the cavity plates, the cavity plates being provided with cavities, and the in-mold embedded sheet positioning mechanism being installed on the cavity plates.

[0006] The in-mold insert positioning mechanism comprises a connecting rod slider assembly, a spring slider assembly and a positioning needle assembly, the connecting rod slider assembly comprises a slider, a connecting rod, a pressing plate, a wear plate and a driving part, the slider is provided with a sliding groove and a sliding plate, the wear plate is fixed on a cavity plate, the pressing plate is fixed on the wear plate or the cavity plate and forms a sliding groove together with the wear plate, the sliding plate of the slider is installed in the sliding groove, one end of the connecting rod is provided with a sliding head which is installed in the sliding groove of the slider, and the driving part is connected with the other end of the connecting rod; when the piston rod of the oil cylinder extends, the slider presses the in-mold insert, and when the piston rod of the oil cylinder retracts, the slider is separated from the in-mold insert;

[0007] The spring slider assembly comprises a pressing film block, a pressing strip and a spring one, the pressing film block is provided with a sliding plate and a spring hole, the pressing strip is installed on the cavity and forms a sliding groove together with the cavity, the sliding plate of the pressing film block is installed in the sliding groove, and the spring one is installed in the spring hole and abuts against between the bottom of the spring hole and the cavity plate; when the mold is opened, the pressing film block presses the in-mold insert under the action force of the spring one, and when the mold is closed, an inclined surface is designed on the core, and the inclined surface first retracts the pressing film block;

[0008] The positioning needle assembly comprises a positioning needle, a fixed block and a screw, the positioning needle is in the shape of a stepped shaft, the fixed block is provided with a stepped hole corresponding to the positioning needle and a mounting hole, the positioning needle is installed in the stepped hole, and the screw fixes the fixed block and the positioning needle in the cavity mounting groove through the mounting hole, and the cavity mounting groove is provided with an adjustable gap;

[0009] The movable mold one comprises a core plate one, a synchronous ejection assembly and a spring block assembly, the synchronous ejection assembly comprises a top rod, a face needle plate, a bottom needle plate, a spring three, a reset rod, a push plate guide column and a push plate guide sleeve, the push plate guide column is installed in the cavity of the core mounting plate one, one end of the push plate guide column is fixed on the core fixed plate one, and the other end of the push plate guide column is installed on the core plate one, the bottom needle plate is provided with a sliding hole and a spring hole, the face needle plate is provided with a sliding hole, a stepped top rod hole and a reset rod hole, the stepped top rod hole is installed with a stepped top rod, and the reset rod hole is installed with a stepped reset rod, the top rod and the reset rod are both live sleeves through the holes provided on the core plate one and the core, the bottom needle plate and the face needle plate are fixed and connected together through the screw, and are both live sleeves on the push plate guide column through the corresponding sliding holes of the top rod and the reset rod, and the spring three is installed in the spring hole of the bottom needle plate and abuts against the core fixed plate one;

[0010] When the mold is closed, the reset rod and the top rod retract under the action of the cavity, and when the mold is opened, the face needle plate and the bottom needle plate push the top rod to eject a distance under the action force of the spring three;

[0011] The elastic block assembly comprises an elastic block, a limiting screw and a spring, the core is provided with a mounting groove, the elastic block is provided with a stepped hole, the spring is mounted at one end of the stepped hole of the elastic block, the limiting screw passes through the stepped hole of the elastic block and the spring, and is fixed in the mounting groove of the core, so that the elastic block and the spring are positioned and mounted in the mounting groove of the core, and the spring abuts against between the stepped hole of the elastic block and the mounting groove of the core.

[0012] When the mold is closed, the elastic block is retracted under the action of the cavity under the action of the elastic block, and when the mold is opened, the elastic block is ejected under the action of the spring, and the ejection height is limited by the limiting screw.

[0013] The upper and lower parts of the cavity plate are respectively provided with a connecting rod sliding block assembly.

[0014] The driving member is an oil cylinder, or a gas cylinder or an electric cylinder.

[0015] A double-material injection molding process of an in-mold insert decorative plate adopts an injection mold, which comprises a movable mold and a fixed mold, the movable mold comprises a movable mold one and a movable mold two, the movable mold one comprises a core plate one, a core fixing plate one, a core mounting plate one and a core connecting plate one, the core plate one provided with a core is fixedly installed on the core mounting plate one, the core mounting plate one is fixedly connected with the core fixing plate one through the core connecting plate one, the core fixing plate one is fixedly installed on one movable plate of an injection molding machine, the movable mold two comprises a core plate two, a core fixing plate two, a core mounting plate two and a core connecting plate two, the core plate two provided with a core is fixedly installed on the core mounting plate two, the core mounting plate two is fixedly connected with the core fixing plate two through the core connecting plate two, and the core fixing plate two is fixedly installed on the other movable plate of the injection molding machine, the fixed mold comprises a cavity fixing plate, a cavity plate and an in-mold insert positioning mechanism, two cavity fixing plates are fixedly installed on a rotating plate of the injection molding machine and are respectively fixedly installed with the cavity plate, the cavity plate is provided with a cavity, and the in-mold insert positioning mechanism is installed on the cavity plate.

[0016] The in-mold insert positioning mechanism comprises a connecting rod sliding block assembly, a spring sliding block assembly and a positioning needle assembly, the connecting rod sliding block assembly comprises a sliding block, a connecting rod, a pressing plate, a wear-resistant plate and a driving member, the sliding block is provided with a sliding groove and a sliding plate, the wear-resistant plate is fixed on the cavity plate, the pressing plate is fixed on the wear-resistant plate or the cavity plate and jointly forms the sliding groove with the wear-resistant plate, the sliding plate of the sliding block is installed in the sliding groove, one end of the connecting rod is provided with a sliding head, the sliding head of the connecting rod is installed in the sliding groove of the sliding block, and the driving member is connected with the other end of the connecting rod.

[0017] The spring slider assembly comprises a pressing film block, a pressing strip and a spring one, the pressing film block is provided with a sliding plate and a spring hole, the pressing strip is installed on the fixed cavity and cooperates with the cavity to form a sliding groove, the sliding plate of the pressing film block is installed in the sliding groove, the spring one is installed in the spring hole and abuts between the bottom of the spring hole and the cavity plate;

[0018] The positioning needle assembly comprises a positioning needle, a fixed block and a screw, the positioning needle is in the shape of a stepped shaft, the fixed block is provided with a stepped hole corresponding to the positioning needle and a mounting hole, the positioning needle is installed in the stepped hole, and the screw fixes the fixed block and the positioning needle in the cavity mounting groove through the mounting hole, and the cavity mounting groove is provided with an adjustable gap;

[0019] The movable mold one comprises a core plate one, a synchronous ejection assembly and a spring block assembly, the synchronous ejection assembly comprises a top rod, a face needle plate, a bottom needle plate, a spring three, a reset rod, a push plate guide column and a push plate guide sleeve, the push plate guide column is installed in the cavity of the core mounting plate one, one end of the push plate guide column is fixed on the core fixed plate one, and the other end of the push plate guide column is installed on the core plate one, the bottom needle plate is provided with a sliding hole and a spring hole, the face needle plate is provided with a sliding hole, a stepped top rod hole and a reset rod hole, the stepped top rod hole is installed with a stepped top rod, and the reset rod hole is installed with a stepped reset rod, the stepped top rod and the reset rod are both sleeved through the holes provided on the core plate one and the core, the bottom needle plate and the face needle plate are fixedly connected together through the screw, and are sleeved on the push plate guide column through the corresponding sliding holes of the stepped top rod and the reset rod, the spring three is installed in the spring hole of the bottom needle plate and abuts against the core fixed plate one;

[0020] The spring block assembly comprises a spring block, a limiting screw and a spring two, the core is provided with a mounting groove, the spring block is provided with a stepped hole, the spring two is installed at one end of the stepped hole of the spring block, the limiting screw passes through the stepped hole of the spring block and the spring two and is fixed in the mounting groove of the core, so that the spring block and the spring two are positioned and installed in the mounting groove of the core, and the spring two abuts between the stepped hole of the spring block and the mounting groove of the core;

[0021] The injection mold is adopted to realize the cyclic and continuous production of the embedded sheet decorative plate product, and the steps are as follows:

[0022] 1. First, first shot:

[0023] (1) The mold is opened, the spring slider assembly of the movable mold one side cavity is manually pushed away, the embedded sheet in the mold is put into the cavity, the positioning needle of the positioning needle assembly is positioned in the cavity through the four-way positioning round hole and the two-way positioning U-shaped hole, and the embedded sheet in the mold is fixed in the cavity after the hand is loosened and the pressing block presses the embedded sheet in the mold.

[0024] (2) The oil cylinder piston of the driving part is extended to press the film sheet, the mold is closed, and the pressing film block of the spring slider assembly is pressed back.

[0025] (3) The mold cavity where the in-mold insert is placed is injected with transparent substrate to obtain the first-shot semi-finished product integrated with the in-mold insert 1 and the transparent substrate.

[0026] (4) The moving mold is equipped with a spring block assembly and a synchronous ejection assembly to ensure that the first-shot semi-finished product is always attached to the cavity during the opening of the mold, and the first-shot semi-finished product remains in the cavity.

[0027] 2. Continue the second shot:

[0028] (5) The cavity plate is rotated 180 degrees under the drive of the rotating plate of the injection molding equipment, and the two cavity plates exchange positions; since the cavity plate is equipped with a connecting rod and slider assembly, the connecting rod and slider assembly remains fixed to the first-shot semi-finished product and the cavity during the rotation of the cavity plate.

[0029] (6) The mold is closed, and the second-shot injection molding product skeleton is continued on the second side of the moving mold; at the same time, the first-shot injection molding semi-finished product is carried out on the first side of the moving mold.

[0030] (7) After the completion of the second-shot injection molding, the connecting rod and slider assembly is retracted to disengage the product in-mold insert decorative plate, the mold is opened, and the product in-mold insert decorative plate is taken out. The production of the in-mold insert decorative plate is thus cycled.

[0031] The in-mold insert decorative plate double-material injection molding mold and process of the present application are scientifically and reasonably designed, simple and practical in mechanism, safe and reliable in action, easy to operate, realize continuous and cyclic production of the in-mold insert decorative plate product, reduce labor intensity, improve production efficiency, and reduce consumption. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and are used to explain the present application, and do not constitute an improper limitation on the present application.

[0033] Figure 1 It is a schematic diagram of the in-mold insert decorative plate.

[0034] Figure 2 It is a schematic diagram of the in-mold insert decorative plate. Figure 1

[0035] Figure 3 It is an exploded schematic diagram of the in-mold insert decorative plate.

[0036] Figure 4 It is a schematic diagram of the in-mold insert decorative plate double-material injection molding mold of the present application.

[0037] Figure 5 It is a schematic diagram of the first-shot fixed mold.

[0038] Figure 6 It is a schematic diagram of the connecting rod and slider assembly.​

[0039] Figure 7 For the pin assembly and the in-mold insert installation schematic diagram.

[0040] Figure 8 For Figure 7 The middle C area positioning pin assembly local enlarged sectional view schematic diagram.

[0041] Figure 9 For Figure 7 The middle D area in-mold insert four-way positioning round hole local enlarged schematic diagram.

[0042] Figure 10 For Figure 7 The middle E area in-mold insert two-way positioning U-shaped (long circular) hole local enlarged schematic diagram.

[0043] Figure 11 For the connecting rod slider assembly three-dimensional schematic diagram.

[0044] Figure 12 For the connecting rod slider assembly plane schematic diagram.

[0045] Figure 13 For the connecting rod slider assembly pressure buckle state schematic diagram.

[0046] Figure 14 For the connecting rod slider assembly disengagement state schematic diagram.

[0047] Figure 15 For the spring slider assembly three-dimensional schematic diagram.

[0048] Figure 16 For the spring slider assembly open mold state schematic diagram.

[0049] Figure 17 For the spring slider assembly mold closing state schematic diagram.

[0050] Figure 18 For the first ejection die schematic diagram.

[0051] Figure 19 For the synchronous ejection assembly three-dimensional schematic diagram.

[0052] Figure 20 For the synchronous ejection assembly plane sectional view schematic diagram (assuming mold closing state).

[0053] Figure 21 For Figure 20 B area local enlarged schematic diagram.

[0054] In the figure: 001-rotating plate, 101-in-mold insert, 101.1-four-way positioning round hole, 101.2-two-way positioning U-shaped hole, 102-transparent base material, 103-skeleton, 103.1-edge strip, 104-hollowed-out area, 105-in-mold insert decorative plate, 201-cavity fixing plate, 202-core plate one, 203-cavity plate, 204-core plate two, 205-core mounting plate two, 206-core fixing plate one, 207-core fixing plate two, 208-core mounting plate one, 209-core connecting plate two, 210-core connecting plate one, 211-core, 212-cavity, 302-linkage slider assembly, 302.1-slider, 302.2-connecting rod, 302.3-pressing plate, 302.4-wear plate, 302.5-driving piece, 303-spring slider assembly, 303.1-film pressing block, 303.2-pressing strip, 303.3-spring one, 304-positioning needle assembly, 304.1-positioning needle, 304.2-fixing block, 304.3-screw, 306-adjustable gap, 403-ejector rod, 404-spring block assembly, 404.1-spring block, 404.2-limiting screw, 404.3-spring two, 405-face needle plate, 406-bottom needle plate, 407-spring three, 408-resetting rod, 412-push plate guide column, 413-push plate guide sleeve. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described below are only used to explain the present application, and in these descriptions, the key words to be noted include "in-mold insert", "transparent base material", "skeleton", "driving piece", "sliding hole", "sliding head", etc. These are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.

[0056] The in-mold insert decorative plate double-material injection mold of the present application is used for producing the in-mold insert decorative plate product 105 as shown in Figure 1 , Figure 2 and Figure 3 , the surface of the product 105 is the in-mold insert 101, the surface is provided with a pattern that can realize light transmission; the middle layer is the transparent base material 102, which can realize light transmission after being combined with the in-mold insert; the bottom layer is the non-light-transmitting skeleton 103, the edge part is provided with the edge strip 103.1, and the middle part is provided with the hollowed-out area 104, which, after being combined with the transparent base material 102, encloses the transparent base material 102 with the periphery, so that the periphery is not light-transmitting, and the middle hollowed-out area 104 can be loaded with a light-emitting device, so that the product can realize local light transmission.

[0057] As shown in Figure 4 and Figure 5As shown, the present application is a double material injection mold for decorative plate with insert, which comprises a movable mold and a fixed mold. The movable mold comprises a movable mold one and a movable mold two. The movable mold one comprises a core plate one 202, a core fixing plate one 206, a core mounting plate one 208 and a core connecting plate one 210. The core plate one 202 is provided with a core 211 and is fixedly installed on the core mounting plate one 208. The core mounting plate one 208 is fixedly connected with the core fixing plate one 206 through the core connecting plate one 210. The core fixing plate one 206 is fixedly installed on one movable plate of an injection molding machine. The movable mold two comprises a core plate two 204, a core fixing plate two 207, a core mounting plate two 205 and a core connecting plate two 209. The core plate two 204 provided with a core is fixedly installed on the core mounting plate two 205. The core mounting plate two 205 is fixedly connected with the core fixing plate two 207 through the core connecting plate two 209. The core fixing plate two 207 is fixedly installed on the other movable plate of the injection molding machine. The fixed mold comprises a cavity fixing plate 201, a cavity plate 203 and a mold insert positioning mechanism. Two identical cavity fixing plates 201 are fixedly installed on a rotating plate 001 of an injection molding machine and are respectively fixedly installed with cavity plates 203 of the same structure. The cavity plate 203 is provided with a cavity 212. The mold insert positioning mechanism is installed on the cavity plate 203.

[0058] As shown in Figure 5 , Figure 6 , Figure 11 and Figure 12 , the mold insert positioning mechanism comprises a connecting rod and slider assembly 302, a spring and slider assembly 303 and a positioning needle assembly 304. The connecting rod and slider assembly 302 comprises a slider 302.1, a connecting rod 302.2, a pressing plate 302.3, a wear-resistant plate 302.4 and a driving member 302.5. The driving member 302.5 can reciprocate. In the present embodiment, the driving member 302.5 is an oil cylinder. Alternatively, the driving member 302.5 can be a gas cylinder or an electric cylinder. The slider 302.1 is provided with a sliding groove and a sliding plate. The wear-resistant plate 302.4 is fixed on the cavity plate 203. The pressing plate 302.3 is fixed on the wear-resistant plate 302.4 or the cavity plate 203 and, together with the wear-resistant plate 302.4, forms a sliding groove. The sliding plate of the slider 302.1 is installed in the sliding groove. One end of the connecting rod 302.2 is provided with a sliding head, which is installed in the sliding groove of the slider 302.1 (sliding connection). The piston rod of the oil cylinder of the driving member 302.5 is connected (hinged) to the other end of the connecting rod 302.2 through a telescopic mechanism. For stability, two connecting rod and slider assemblies 302 are installed on the upper and lower parts of the cavity plate 203, respectively. As shown in Figure 13 , when the piston rod of the oil cylinder of the driving member 302.5 is extended, the slider 302.1 presses the mold insert 101 (transparent base material 102). As shown in Figure 14As shown, the oil cylinder piston rod of the driving member 302.5 is retracted, the slider 302.1 is separated from the first injection molding semi-product of the in-mold insert 101 and the transparent substrate 102.

[0059] As shown in Figure 15 , Figure 16 and Figure 17 , the spring slider assembly 303 includes a pressing block 303.1, a pressing strip 303.2 and a spring 303.3. The pressing block 303.1 is provided with a sliding plate and a spring hole (blind hole). The pressing strip 303.2 is installed on the cavity 212 and forms a sliding groove together with the cavity 212. The sliding plate of the pressing block 303.1 is installed in the sliding groove. The spring 303.3 is installed in the spring hole and abuts against the bottom of the spring hole and the cavity plate 203. When the mold is opened, the pressing block 303.1 is pressed against the in-mold insert 101 under the action of the spring 303.3. When the mold is closed, the core 211 is designed with a slope, which first presses the pressing block 303.1 back.

[0060] As shown in Figure 7 , Figure 8 , the positioning pin assembly 304 includes a positioning pin 304.1, a fixing block 304.2 and a screw 304.3. The positioning pin 304.1 is in the shape of a stepped shaft. The fixing block 304.2 is provided with a stepped hole corresponding to the positioning pin 304.1 and a mounting hole. The positioning pin 304.1 is installed in the stepped hole. The screw 304.3 fixes the fixing block 304.2 and the positioning pin 304.1 in the mounting groove of the cavity 212. The installation position of the fixing block 304.2 and the positioning pin 304.1 can be adjusted through the adjustable gap 306. See Figure 9 and Figure 10 , the in-mold insert 101 is provided with four-way positioning round holes 101.1 and two-way positioning U-shaped holes 101.2. The in-mold insert 101 is positioned and installed on the upper and lower positioning pins 304.1 through the four-way positioning round holes 101.1 and the two-way positioning U-shaped holes 101.2.

[0061] As shown in Figure 18 , Figure 19 and Figure 20As shown, the movable mold comprises a core plate 202, a synchronous ejection assembly and a spring block assembly 404. The synchronous ejection assembly comprises a ejector rod 403, a face needle plate 405, a bottom needle plate 406, a spring 407, a reset rod 408, a push plate guide column 412 and a push plate guide sleeve 413. The push plate guide column 412 is installed in the cavity of the core mounting plate 208, with one end fixed on the core fixing plate 210 and the other end installed on the core plate 202. The bottom needle plate 406 is provided with a sliding hole and a spring hole (blind hole). The face needle plate 405 is provided with a sliding hole, a stepped ejector rod hole and a reset rod hole. The stepped ejector rod 403 is installed in the ejector rod hole, and the stepped reset rod 408 is installed in the reset rod hole. The ejector rod 403 and the reset rod 408 are both movably (loosely) inserted through the holes provided on the core plate 202 and the core 211. The bottom needle plate 406 and the face needle plate 405 are fixedly connected together by screws, and are movably (loosely) inserted on the push plate guide column 412 through the corresponding sliding holes of the ejector rod 403 and the reset rod 408. The spring 407 is installed in the spring hole of the bottom needle plate 406 and abuts against the core fixing plate 210. When the mold is closed, the reset rod 408 and the ejector rod 403 are retracted under the action of the cavity 212. When the mold is opened, the face needle plate 405 and the bottom needle plate 406 push the ejector rod 403 to eject a certain distance under the action of the spring 407.

[0062] The spring block assembly 404 comprises a spring block 404.1, a limiting screw 404.2 and a spring 404.3. The core 211 is provided with a mounting groove. The spring block 404.1 is provided with a stepped hole. The spring 404.3 is installed at one end of the stepped hole of the spring block 404.1. The limiting screw 404.2 passes through the stepped hole of the spring block 404.1 and the spring 404.3 and is fixed in the mounting groove of the core 211, thereby positioning and installing the spring block 404.1 and the spring 404.3 in the mounting groove of the core 211. The spring 404.3 abuts between the stepped hole of the spring block 404.1 and the mounting groove of the core 211. When the mold is closed, the spring block 404.1 is retracted under the action of the cavity 212. When the mold is opened, the spring block 404.1 is ejected under the action of the spring 404.3, and the ejection height is limited by the limiting screw 404.2.

[0063] In production, the pre-prepared mold insert 101 is provided with four-way positioning round holes 101.1 and two-way positioning U-shaped holes 101.2. The mold insert decorative plate double-material injection mold is used to realize the cyclic and continuous production of the insert decorative plate product 105, and the steps are as follows:

[0064] 1. First, the first shot is performed:

[0065] (1) The mold is opened, the spring slide block assembly 303 of the movable mold is manually pushed open, the insert 101 is put into the cavity 212, the positioning needle assembly 304 is positioned in the cavity 212 through the four-way positioning round hole 101.1 and the two-way positioning U-shaped hole 101.2, and the movable mold is manually released to press the insert 101 with the pressing block 303.1 of the spring slide block assembly 303, so that the insert 101 is fixed in the cavity 212.

[0066] (2) The oil cylinder piston of the driving part 302.5 is extended to press the insert 101, the mold is closed, and the pressing block 303.1 of the spring slide block assembly 303 is retracted (see Figure 17 )。

[0067] (3) The mold cavity in which the insert 101 is placed is injection molded with the transparent substrate 102 to obtain the first injection half-finished product integrated with the insert 101 and the transparent substrate 102.

[0068] (4) The movable mold one is provided with the spring block assembly 404 and the synchronous ejection assembly, which ensures that the first injection half-finished product is always attached to the cavity 212 within a certain distance when the mold is opened, and the first injection half-finished product remains in the cavity 212.

[0069] 2. Continue the second injection:

[0070] (5) The cavity plate 203 is rotated by 180 degrees under the drive of the rotating plate 001 of the injection molding equipment, and the two cavity plates 203 exchange positions; since the connecting rod slide block assembly 302 is mounted on the cavity plate 203, the connecting rod slide block assembly 302 remains fixed to the first injection half-finished product and the cavity 212 without moving when the cavity plate 203 rotates.

[0071] (6) The mold is closed, the second injection product skeleton 103 is continued to be injection molded on the movable mold two side, and the first injection half-finished product is injection molded on the movable mold one side.

[0072] (7) After the second injection is completed, the connecting rod slide block assembly 302 is retracted to separate from the product insert decorative plate 105, the mold is opened, and the product insert decorative plate 105 is taken out. The production of the insert decorative plate 105 is thus cycled.

[0073] It should be noted that the mold is opened after the second injection is completed, and the product is preferably placed in the cavity of the movable mold two. Corresponding structures can be provided on the skeleton 103 of the insert decorative plate 105, such as designing the size of each part of the skeleton 103 or setting a small undercut at the end of the edge 103.1 of the skeleton 103, which can not only make the movable mold two hold the product of the insert decorative plate 105, but also utilize the elastic deformation of the edge of the injection molded part to facilitate the taking out of the product.

[0074] The above merely describes one embodiment of the present application, and the present application can have various other embodiments with modifications and changes for those skilled in the art, which are not described here in detail. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application is included in the protection scope required by the present application.

Claims

1. A double injection mold for in-mold sheet decoration plate, comprising a movable mold and a fixed mold, the movable mold comprises a movable mold one and a movable mold two, the movable mold one comprises a core plate one (202), a core fixing plate one (206), a core mounting plate one (208) and a core connecting plate one (210), the core plate one (202) is provided with a core (211) and is fixedly installed on the core mounting plate one (208), the core mounting plate one (208) is fixedly connected with the core fixing plate one (206) through the core connecting plate one (210), the core fixing plate one (206) is fixedly installed on one movable plate of an injection molding machine, the movable mold two comprises a core plate two (204), a core fixing plate two (207), a core mounting plate two (205) and a core connecting plate two (209), the core plate two (204) provided with a core is fixedly installed on the core mounting plate two (205), the core mounting plate two (205) is fixedly connected with the core fixing plate two (207) through the core connecting plate two (209), the core fixing plate two (207) is fixedly installed on the other movable plate of the injection molding machine, the fixed mold comprises a cavity fixing plate (201), a cavity plate (203) and an in-mold sheet positioning mechanism, two cavity fixing plates (201) are fixedly installed on a rotating plate (001) of an injection molding machine and are respectively fixedly installed with a cavity plate (203), the cavity plate (203) is provided with a cavity (212), and the in-mold sheet positioning mechanism is installed on the cavity plate (203); the in-mold sheet positioning mechanism comprises a connecting rod and slider assembly (302), a spring and slider assembly (303) and a positioning needle assembly (304), the connecting rod and slider assembly (302) comprises a slider (302.1), a connecting rod (302.2), a pressing plate (302.3), a wear-resistant plate (302.4) and a driving member (302.5), the slider (302.1) is provided with a sliding groove and a sliding plate, the wear-resistant plate (302.4) is fixed on the cavity plate (203), the pressing plate (302.3) is fixed on the wear-resistant plate (302.4) or the cavity plate (203) and jointly forms a sliding groove with the wear-resistant plate (302.4), the sliding plate of the slider (302.1) is installed in the sliding groove, one end of the connecting rod (302.2) is provided with a sliding head, the sliding head is installed in the sliding groove of the slider (302.1), and the other end of the connecting rod (302.2) is connected with the driving member (302.5); when the oil cylinder piston rod of the driving member (302.5) extends, the slider (302.1) presses the in-mold sheet (101), and when the oil cylinder piston rod of the driving member (302.5) retracts, the slider (302.1) is separated from the in-mold sheet (101). The spring slider assembly (303) comprises a pressing module (303.1), a pressing strip (303.2) and a spring one (303.3), the pressing module (303.1) is provided with a sliding plate and a spring hole, the pressing strip (303.2) is installed on the fixed mold cavity (212) and constitutes a sliding groove together with the mold cavity (212), the sliding plate of the pressing module (303.1) is installed in the sliding groove, and the spring one (303.3) is installed in the spring hole and abuts against the bottom of the spring hole and the mold cavity plate (203); When the mold is opened, the pressing module (303.1) presses the in-mold insert (101) under the action of the spring one (303.3), and when the mold is closed, the inclined surface designed on the core (211) first presses the pressing module (303.1) to retreat; The positioning needle assembly (304) comprises a positioning needle (304.1), a fixed block (304.2) and a screw (304.3), the positioning needle (304.1) is in the shape of a stepped shaft, the fixed block (304.2) is provided with a stepped hole corresponding to the positioning needle (304.1) and a mounting hole, the positioning needle (304.1) is installed in the stepped hole, and the screw (304.3) fixes the fixed block (304.2) and the positioning needle (304.1) in the installation groove of the mold cavity (212) through the mounting hole, and the installation groove of the mold cavity (212) is provided with an adjustable gap (306); The movable mold one comprises a core plate one (202), a synchronous ejection assembly and a spring block assembly (404), the synchronous ejection assembly comprises a top rod (403), a face needle plate (405), a bottom needle plate (406), a spring three (407), a reset rod (408), a push plate guide column (412) and a push plate guide sleeve (413), the push plate guide column (412) is installed in the cavity of the core installation plate one (208), one end of the push plate guide column (412) is fixed on the core fixing plate one (210), and the other end of the push plate guide column (412) is installed on the core plate one (202), the bottom needle plate (406) is provided with a sliding hole and a spring hole, the face needle plate (405) is provided with a sliding hole, a stepped top rod hole and a reset rod hole, the stepped top rod hole is provided with the stepped top rod (403), and the reset rod hole is provided with the stepped reset rod (408), the stepped top rod (403) and the reset rod (408) are both sleeved through the holes provided on the core plate one (202) and the core (211), the bottom needle plate (406) and the face needle plate (405) are fixedly connected together through the screw, and are sleeved on the push plate guide column (412) through the corresponding sliding holes of the stepped top rod (403) and the reset rod (408), and the spring three (407) is installed in the spring hole of the bottom needle plate (406) and abuts against the core fixing plate one (210); The synchronous ejection assembly is retracted under the action of the mold cavity (212) when the mold is closed, and the face needle plate (405) and the bottom needle plate (406) push the top rod (403) to be ejected by a distance under the action of the spring three (407) when the mold is opened. The elastic block assembly (404) includes an elastic block (404.1), a limiting screw (404.2) and a spring two (404.3), the core (211) is provided with a mounting groove, the elastic block (404.1) is provided with a stepped hole, the spring two (404.3) is mounted at one end of the stepped hole of the elastic block (404.1), the limiting screw (404.2) passes through the stepped hole of the elastic block (404.1) and the spring two (404.3) and is fixed in the mounting groove of the core (211), so that the elastic block (404.1) and the spring two (404.3) are positioned and mounted in the mounting groove of the core (211), and the spring two (404.3) abuts between the stepped hole of the elastic block (404.1) and the mounting groove of the core (211); When the mold is closed, under the action of the cavity (212), the elastic block (404.1) is retracted under the action of the force of the cavity, and when the mold is opened, the elastic block (404.1) is ejected under the action of the spring two (404.3), and the limiting screw (404.2) limits the ejection height.

2. The in-mold sheet decorated board bi-injection mold of claim 1, wherein: The upper and lower parts of the cavity plate (203) are respectively provided with a connecting rod sliding block assembly (302).

3. The in-mold sheet decorated board two-shot injection mold of claim 1, wherein: The driving member (302.5) is an oil cylinder, or a gas cylinder or an electric cylinder. ​ 4. An in-mold sheet decorated panel two-shot injection molding process characterized by: The injection mold of any one of claims 1-3 is used to realize continuous production of the inlaid sheet decorative plate product, and the steps are as follows:

1. First, first injection: 1) The mold is opened, the spring sliding block assembly (303) of the movable mold side cavity (212) is manually pushed away, the inlaid sheet (101) in the mold is placed in the cavity (212), the four-way positioning round hole (101.1) and the two-way positioning U-shaped hole (101.2) are used to position the needle assembly (304), and the positioning needle (304.1) of the needle assembly (304) is positioned in the cavity (212), then the mold block (303.1) is released to press the inlaid sheet (101) in the mold, so that the inlaid sheet (101) in the mold is fixed in the cavity (212); 2) The oil cylinder piston of the driving member (302.5) is extended to press the inlaid sheet (101), the mold is closed, and the mold block (303.1) of the spring sliding block assembly (303) is retracted; 3) The mold cavity in which the inlaid sheet (101) is placed is injected with a transparent base material (102), and a first injection semi-finished product of the inlaid sheet (101) and the transparent base material (102) is obtained; 4) The movable mold is provided with an elastic block assembly (404) and a synchronous ejection assembly, which ensures that the first injection semi-finished product is always attached to the cavity (212) within a certain distance after the mold is opened, and the first injection semi-finished product remains in the cavity (212); 2. Continue the second injection: 5) The cavity plate (203) is rotated by 180 degrees under the driving of the injection equipment rotating plate (001), and the two cavity plates (203) exchange positions; since the connecting rod sliding block assembly (302) is mounted on the cavity plate (203), the connecting rod sliding block assembly (302) remains fixed to the first injection semi-finished product attached to the cavity (212) without moving when the cavity plate (203) rotates; 6) mold closing, continue to inject the second shot product skeleton (103) on the two sides of the moving mold; at the same time, on the one side of the moving mold, the first shot injection of semi-finished product is carried out; 7) after the completion of the second shot injection, the connecting rod slider assembly (302) is retracted, and the product embedded sheet decorative plate (105) is separated; the mold is opened, and the product embedded sheet decorative plate (105) is taken out; thus, the production of the embedded sheet decorative plate (105) is carried out in a cycle.

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