In-mold decoration of a plastic part

Abstract

The application provides a decoration strip injection mold, which comprises a front mold, a back mold, a slider structure arranged on the side of the back mold and a second driving structure. The slider structure comprises a main slider, a sub-slider movably arranged on the main slider, a first driving structure and a limiting structure. The sub-slider is provided with an injection slot for injection of a decoration strip buckle. The second driving structure is used for driving the main slider to move towards the direction of separating from the upper flange of the decoration strip and the lower flange of the decoration strip. In the mold opening process, the second driving structure drives the main slider to slide, the first driving structure drives the sub-slider to move towards the direction of separating from the decoration strip buckle, when the sub-slider separates from the decoration strip buckle, the limiting structure abuts against the sub-slider, so that the main slider and the sub-slider move synchronously. The injection slot of the decoration strip buckle is arranged on the slider structure, the decoration strip buckle is demolded through the sliding cooperation of the main slider and the sub-slider, the existing injection mode of forming the decoration strip buckle through the insertion of the through hole is improved, and the overflow of the foaming material from the through hole is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold, in particular to a decorative strip injection mold. BACKGROUND

[0002] The refrigerator door body in the prior art usually comprises a door shell, a foaming layer located in the door shell, and a decorative strip product installed at the end of the door shell. Figure 1 As shown in the figure, the decorative strip product 10' comprises a decorative strip cover plate 11', a decorative strip upper flange 12' extending from the decorative strip cover plate 11' and cooperating with the door shell, and a decorative strip lower flange 13'. When the decorative strip product 10' is buckled with the door shell, the decorative strip upper flange 12' is arranged on the outside of the door shell, and the decorative strip lower flange 13' is arranged on the inside of the door shell. The decorative strip upper flange 12' is provided with a decorative strip buckle 14' for buckling with the door shell, so as to install the decorative strip product 10' on the door shell.

[0003] At present, most of the decorative strip products sold on the market are formed by a decorative strip injection mold. As shown in the figures, Figure 2 and Figure 3 The decorative strip injection mold 20' comprises a front mold 21', a rear mold 22', and a slider 23' arranged on the side surface of the rear mold 22'. The front mold 21', the rear mold 22', and the slider 23' contact to form an injection molding cavity for injecting the decorative strip product 10'. The slider 23' is inserted between the front mold 21' and the rear mold 22' to complete the injection molding of the decorative strip upper flange 12' and the decorative strip lower flange 13'. Since the decorative strip buckle 14' is arranged on the decorative strip upper flange 12', an insertion hole 15' is arranged below the decorative strip buckle 14' to allow the part of the rear mold 22' provided with a decorative strip buckle injection groove to pass through, so as to realize the injection molding of the decorative strip buckle 14'.

[0004] In addition, during the foaming process of the refrigerator door body, the foaming material is easy to overflow from the insertion hole 15' below the decorative strip buckle 14', which affects the appearance quality of the refrigerator and seriously affects the production efficiency. SUMMARY

[0005] The present application provides a decorative strip injection mold to solve the technical problem of the existing decorative strip product realizing the injection molding of the decorative strip buckle by arranging an insertion hole.

[0006] To achieve the above-mentioned one of the purposes of the application, an embodiment of the application provides a decoration strip injection mold, which comprises a front mold, a rear mold, a slider structure arranged on the side of the rear mold, the front mold, the rear mold and the slider structure cooperatively form a forming cavity for injection molding of a decoration strip product, the forming cavity comprises an upper flange forming cavity for injection molding of an upper flange of the decoration strip and a lower flange forming cavity for injection molding of a lower flange of the decoration strip. The slider structure comprises:

[0007] a main slider, which is used for cooperating with the rear mold to form the lower flange forming cavity;

[0008] a sub-slider, which is movably arranged on the main slider, and the sub-slider is provided with an injection slot for injection molding of a decoration strip buckle;

[0009] a first driving structure, which is used for driving the sub-slider to move in a direction away from the decoration strip buckle;

[0010] a limiting structure, which is used for abutting against the sub-slider to make the sub-slider move synchronously with the main slider;

[0011] wherein the decoration strip injection mold further comprises a second driving structure for driving the main slider to move in a direction away from the upper flange of the decoration strip and the lower flange of the decoration strip;

[0012] in the mold opening process, the second driving structure drives the main slider to move in a direction away from the upper flange of the decoration strip and the lower flange of the decoration strip; the first driving structure drives the sub-slider to move in a direction away from the decoration strip buckle; when the sub-slider is separated from the decoration strip buckle, the limiting structure abuts against the sub-slider to make the sub-slider move synchronously with the main slider.

[0013] As a further improvement of the embodiment of the application, the first driving structure comprises a first sliding rail structure connecting the main slider and the sub-slider, and a straight line along the sliding direction of the sub-slider on the first sliding rail structure intersects with the projection of a straight line along the moving direction of the main slider in the same plane.

[0014] As a further improvement of the embodiment of the application, the first sliding rail structure comprises a first sliding groove and a first sliding block matched with the first sliding groove; wherein the first sliding groove is arranged as a dovetail guide groove, and the first sliding block is arranged as a dovetail guide column matched with the dovetail guide groove.

[0015] As a further improvement of the embodiment of the application, the first driving structure further comprises an abutting piece; in the process that the sub-slider is separated from the decoration strip buckle, the abutting piece abuts against the sub-slider to make the sub-slider slide along the first sliding rail.

[0016] As a further improvement of the embodiment of the present application, the abutting member is provided as an elastic member.

[0017] As a further improvement of the embodiment of the present application, the mould further comprises a back mould plate for mounting the back mould, and the second driving structure comprises a driving source and a second sliding rail structure provided on the back mould plate; wherein the main sliding block is mounted on the back mould plate through the second sliding rail structure, and the driving source can drive the main sliding block to slide along the second sliding rail structure.

[0018] As a further improvement of the embodiment of the present application, the mould further comprises a front mould plate for mounting the front mould, and the driving source comprises a guide column extending from the front mould plate to the back mould plate; the guide column is mounted on the front mould plate and movably penetrates the main sliding block; wherein the projection of the extension direction of the guide column, the projection of the sliding direction of the second sliding rail structure and the projection of the movement direction of the front mould plate on the same plane intersect with each other; when the front mould plate drives the guide column to move, the guide column drives the main sliding block to slide along the second sliding rail structure.

[0019] As a further improvement of the embodiment of the present application, the second sliding rail structure comprises a second sliding groove and a second sliding block matched with the second sliding groove; the second sliding groove comprises a sliding channel and a limiting block mounted on both sides of the sliding channel; wherein the limiting block has an L-shaped slot towards one side of the sliding channel.

[0020] An embodiment of the present application further provides a mould for injection moulding a decorative strip, which comprises a front mould, a back mould, and a sliding block structure provided on the side surface of the back mould; the front mould, the back mould and the sliding block structure cooperatively form a forming cavity for injection moulding a decorative strip product, and the forming cavity comprises a cover plate forming cavity for injection moulding a cover plate of the decorative strip and a lower flange forming cavity for injection moulding a lower flange of the decorative strip. The sliding block structure comprises:

[0021] a main sliding block, which is used to cooperatively form the lower flange forming cavity with the back mould;

[0022] a sub-sliding block, which is movably mounted on the main sliding block and is provided with an abutting part matched with the front mould;

[0023] a first driving structure, which is used to guide the movement of the sub-sliding block towards the direction away from the cover plate of the decorative strip;

[0024] wherein the mould further comprises a second driving structure, which is used to drive the movement of the main sliding block towards the direction of the cover plate of the decorative strip;

[0025] In the mold closing process, the second driving structure drives the main slider to move towards the direction of the trim cover plate, and the sub-slider moves synchronously with the main slider; when the abutting part abuts against the front mold, the front mold pushes the abutting part to push the sub-slider to move along the first driving structure.

[0026] Compared with the prior art, the beneficial effects of the present application are that the trim injection mold provided by the present application sets the injection slot of the trim buckle in the slider structure, and realizes the demolding of the trim buckle through the sliding cooperation of the main slider and the sub-slider, improves the injection mode of the trim buckle formed by the insertion hole in the prior art, avoids the overflow of the foaming material from the insertion hole when the refrigerator door body is foamed, thereby ensuring the quality of the refrigerator appearance, and the overall structure is compact and easy to install. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structure diagram of the trim buckle and the insertion hole in the existing trim product;

[0028] Figure 2 is a structure diagram of the injection mold and the trim product of the existing trim injection mold;

[0029] Figure 3 is Figure 2 is a partial enlarged view of A in FIG. 1;

[0030] Figure 4 is a partial exploded view of the trim injection mold provided by an embodiment of the present application;

[0031] Figure 5 is Figure 4 is a top view of the trim injection mold shown in FIG. 2;

[0032] Figure 6 is Figure 5 is a sectional view along B-B of FIG. 3;

[0033] Figure 7 is Figure 6 is a partial enlarged view of D in FIG. 4;

[0034] Figure 8 is a perspective view of the main slider, the sub-slider and the first slide rail structure in an embodiment of the present application;

[0035] Figure 9 is Figure 5 is a sectional view along C-C of FIG. 5;

[0036] Figure 10 is an installation schematic diagram of the main slider and the rear mold plate in an embodiment of the present application;

[0037] Figure 11 is an exploded view of the main slider and the sub-slider in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] In the description of the present application, it should be noted that the terms "center", "front", "back", "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] As shown in FIG. 1, Figures 4 to 7 The present application provides a decoration strip injection mold 100, which comprises a front mold 10, a back mold 20, and a slider structure 30 arranged on the side of the back mold 20. The front mold 10, the back mold 20 and the slider structure 30 cooperate to form a forming cavity 50 for injection molding a decoration strip product. The forming cavity 50 comprises a cover plate forming cavity 51 for injection molding a decoration strip cover plate, an upper flange forming cavity 52 for injection molding a decoration strip upper flange, and a lower flange forming cavity 53 for injection molding a decoration strip lower flange. Wherein, the slider structure 30 can be inserted between the front mold 10 and the back mold 20 to form the upper flange forming cavity 52 and the lower flange forming cavity 53.

[0041] The slider structure 30 comprises a main slider 310, a secondary slider 330, a first driving structure 350 and a limiting structure 360. The main slider 310 cooperates with the back mold 20 to form the lower flange forming cavity 53. The secondary slider 330 is movably installed on the main slider 310, and the secondary slider 330 is provided with an injection slot 331 for injection molding a decoration strip buckle. The first driving structure 350 connects the main slider 310 and the secondary slider 330, and is used to drive the secondary slider 330 to move towards a direction away from the decoration strip buckle. The limiting structure 360 is used to abut against the secondary slider 330, so that the secondary slider 330 moves synchronously with the main slider 310.

[0042] In addition, the decoration strip injection mold 100 further comprises a second driving structure 60 for driving the main slider 310 to move towards a direction away from the decoration strip upper flange and the decoration strip lower flange.

[0043] In the mold opening process, the second driving structure 60 drives the main slider 310 to move towards the direction of disengaging the upper and lower flanges of the molding strip; the first driving structure 350 drives the sub-slider 330 to move towards the direction of disengaging the molding strip buckle. When the sub-slider 330 disengages the molding strip buckle, the limiting structure 360 abuts against the sub-slider 330, so that the sub-slider 330 moves synchronously with the main slider 310.

[0044] Of course, those skilled in the art can conceive that the movement of the sub-slider 330 driven by the first driving structure 350 and the movement of the main slider 310 driven by the second driving structure 60 can be set to be synchronous according to the needs. That is, when the second driving structure 60 drives the main slider 310 to move towards the direction of disengaging the upper and lower flanges of the molding strip, the first driving structure 350 drives the sub-slider 330 to move towards the direction of disengaging the molding strip buckle. Any scheme identical or similar to the present embodiment is covered within the protection scope of the present application.

[0045] In the present embodiment, the movement of the sub-slider 330 driven by the first driving structure 350 and the movement of the main slider 310 driven by the second driving structure 60 are set to be synchronous.

[0046] As shown in Figure 6 and Figure 7 The first driving structure 350 includes a first sliding rail structure 351 connecting the main slider 310 and the sub-slider 330. The straight line along the sliding direction of the sub-slider 330 on the first sliding rail structure 351 and the straight line along the movement direction of the main slider 310 are intersected on the projection of the same plane.

[0047] Further, the main slider 310 extends outward from the rear mold 20 and is arranged obliquely downward. The movement process of the main slider 310 can be decomposed into a first movement along the X direction and a second movement along the Z direction.

[0048] Optionally, the straight line along the sliding direction of the sub-slider 330 on the first sliding rail structure 351 and the straight line along the movement direction of the main slider 310 are arranged as an acute angle on the same plane.

[0049] In the present embodiment, as shown in Figure 7 and Figure 8As shown, the first slide rail structure 351 includes a first slide groove 3511 and a first slider 3512 that cooperates with the first slide groove 3511. Optionally, the first slide groove 3511 is disposed on the main slider 310, and the first slider 3512 may be disposed on the secondary slider 330. Of course, the first slide groove 3511 and the first slider 3512 can also be disposed as needed, and all schemes that are the same as or similar to this embodiment are covered within the protection scope of this invention.

[0050] Furthermore, in order to ensure the sliding accuracy between the secondary slider 330 and the main slider 310, the first slide groove 3511 can be configured as a dovetail guide groove, and correspondingly the first slider 3512 is configured as a dovetail guide post that cooperates with the dovetail guide groove.

[0051] In this embodiment, the first driving structure 350 further includes a retaining member 352. During the process of the secondary slider 330 disengaging from the trim clip, the retaining member 352 abuts against the secondary slider 330, causing the secondary slider 330 to slide along the first slide rail 351.

[0052] Optionally, the supporting member 352 can be configured as an elastic member 3521. Furthermore, the secondary slider 330 is provided with an elastic member mounting hole 332 for accommodating the elastic member 3521. During the mold opening process of the trim injection mold 100, the supporting member 352 can push the secondary slider 330 to slide along the first slide rail structure 351, thereby eliminating the influence of the movement of the main slider 310 in the X direction on the secondary slider 330, and thus ensuring that the secondary slider 330 remains stationary relative to the trim buckle in the X direction.

[0053] Of course, those skilled in the art will readily recognize that the movement of the secondary slider 330 along the first slide rail structure 351 can also be decomposed into a third movement along the X direction and a fourth movement along the Z direction, with the third movement and the first movement moving in opposite directions. Therefore, in other embodiments of the present invention, the main slider 310 moves toward the direction of disengaging from the upper and lower flanges of the trim strip, while the first driving structure 350 drives the secondary slider 330 to move away from the trim strip buckle, ensuring that the secondary slider 330 remains stationary relative to the trim strip buckle in the X direction.

[0054] In one embodiment of the present invention, the first slide rail structure 351 includes a first end 3513 near the trim product and a second end 3514 away from the first end. The limiting structure 360 ​​is disposed at the first end 3513. The limiting structure 360 ​​is used to limit the movement stroke of the secondary slider 330 along the first slide rail structure 351, so that the secondary slider 330 can be completely disengaged from the trim buckle.

[0055] When the sub slide block 330 slides to the first end 3513, the injection slot 331 on the sub slide block 330 is completely separated from the decorative strip buckle, and the limiting structure 360 abuts against the sub slide block 330, so that the sub slide block 330 moves synchronously with the main slide block 310.

[0056] Optionally, the limiting structure 360 can be a limiting protrusion 361 of the main slide block 310 towards the sub slide block 330. Optionally, the limiting protrusion 361 can be arranged on the first sliding groove 3511.

[0057] As shown in Figure 9 and Figure 10 In an embodiment of the present application, the decorative strip injection mold 100 further comprises a front mold plate 70 for mounting the front mold 10 and a rear mold plate 80 for mounting the rear mold 20. The second driving structure 60 comprises a driving source 610 and a second sliding rail structure 620 arranged on the rear mold plate 80. The main slide block 310 is mounted on the rear mold plate 80 through the second sliding rail structure 620, and the driving source 610 can drive the main slide block 310 to slide along the second sliding rail structure 620.

[0058] The rear mold plate 80 is provided with two sets of forming cavities 50, thereby improving the injection efficiency of the decorative strip product. In addition, the front mold plate 70 is further provided with a limiting groove 710 matched with the main slide block 310. The main slide block 310 is slidably mounted in the limiting groove 710, and the limiting groove 710 can limit the movement of the main slide block 310 in the mold closing state, thereby avoiding affecting the injection molding of the decorative strip product.

[0059] Further, the driving source 610 comprises a guide column 611 extending from the front mold plate 70 to the rear mold plate 80, and the guide column 611 is mounted on the front mold plate 70. The main slide block 310 is provided with a guide column hole 311 matched with the guide column 611, and the guide column 611 is movably arranged in the main slide block 310. The straight line along the extension direction of the guide column 611, the straight line along the sliding direction of the second sliding rail structure 620, and the straight line along the movement direction of the front mold plate 70 are projected on the same plane and intersect with each other. When the front mold plate 70 drives the guide column 611 to move, the guide column 611 drives the main slide block 310 to slide along the second sliding rail structure 620, thereby making the main slide block 310 move towards the direction away from the upper flange of the decorative strip and the lower flange of the decorative strip.

[0060] Optionally, the guide column 611 can be arranged in a splayed shape, that is, the guide column 611 is arranged outwardly inclined from the front mold plate 70.

[0061] In the embodiment, the second sliding rail structure 620 comprises a second sliding groove 621 and a second sliding block 622 matched with the second sliding groove 621. The second sliding groove 621 comprises a sliding channel 6211 and limiting blocks 6212 installed on both sides of the sliding channel 6211. The limiting blocks 6212 have L-shaped grooves 6213 towards one side of the sliding channel 6211. The L-shaped grooves 6213 ensure that the second sliding block can only slide along the sliding channel 6211, ensuring the sliding direction of the main sliding block 310.

[0062] Optionally, the second sliding groove 621 can be integrally arranged with the main sliding block 310. Similarly, the second sliding block 622 is integrally arranged with the rear mold plate 80.

[0063] Further, in order to ensure that the second sliding block 622 has good sliding precision relative to the second sliding groove 621, a plurality of positioning keys 6214 are arranged on the second sliding groove 621. Correspondingly, a positioning groove 6221 matched with the positioning keys 6214 is arranged on the second sliding block 622.

[0064] Further, a plurality of grooves 6215 are arranged on the second sliding groove 621, reducing the sliding area of the second sliding block 622 and the second sliding groove 621, thereby reducing the sliding friction between the second sliding block 622 and the second sliding groove 621, and ensuring the sliding precision of the second sliding block 622 and the second sliding groove 621.

[0065] In an embodiment of the present application, in order to ensure the matching precision of the main sliding block 310 and the rear mold 20 and facilitate the adjustment of the decorative strip injection mold 100, an adjusting device 90 is arranged between the main sliding block 310 and the rear mold 20. The adjusting device 90 is installed on the contact surface of the main sliding block 310 and the rear mold, and is used to adjust the installation distance between the main sliding block 310 and the rear mold 20, thereby adjusting the matching precision of the main sliding block 310 and the rear mold 20. The number of the adjusting device 90 can be arranged as required.

[0066] As shown in Figure 7 and Figure 11 The main sliding block 310 comprises a lower sliding block 312 and an upper sliding block 313. A plurality of upper sliding blocks 313 are arranged on the lower sliding block 312, and the auxiliary sliding block 330 is connected to the upper sliding block 313 through the first driving structure 350.

[0067] Optionally, two groups of upper sliding blocks 313 are arranged on the lower sliding block 312. Of course, the number of the upper sliding blocks 313 can be arranged as required, and any scheme identical or similar to the present embodiment is covered within the protection scope of the present application.

[0068] In addition, the sub slide block 330 is movably installed on the main slide block 310, and a resisting part 333 cooperating with the front mold 10 is further arranged on the sub slide block 330. The first driving structure 350 is used for guiding the sub slide block 330 to move towards the direction away from the molding cover plate. The second driving structure 60 is used for driving the main slide block 310 to move towards the direction of the molding cover plate.

[0069] In the mold closing process, the second driving structure 60 drives the main slide block 310 to move towards the direction of the molding cover plate, and at this time, the sub slide block 330 moves synchronously with the main slide block 310. When the resisting part 333 abuts against the front mold 10, the front mold 10 pushes the resisting part 333 to push the sub slide block 330 to move towards the direction away from the molding cover plate.

[0070] The working process of the molding cover plate injection mold 100 provided by the application is as follows:

[0071] In the mold opening process of the molding cover plate injection mold 100, the front mold plate 70 drives the front mold 10 and the guide column 611 to move towards the direction away from the molding cover plate, that is, the front mold plate 70 drives the front mold 10 and the guide column 611 to move along the Z direction away from the molding cover plate. At this time, the guide column 611 drives the main slide block 310 to slide along the second slide rail structure 620, and the resisting part 352 resists the sub slide block 330 to slide along the first slide rail structure 351, so that the sub slide block 330 moves along the Z direction to be separated from the molding buckle. When the sub slide block 330 is separated from the molding buckle, the limiting structure 360 drives the sub slide block 330 to move with the main slide block 310, until the main slide block 310 and the sub slide block 330 are separated from the upper flange and the lower flange of the molding cover plate, and the molding cover plate can be completely separated from the rear mold.

[0072] In the mold closing process of the molding cover plate injection mold 100, the front mold plate 70 drives the front mold 10 and the guide column 611 to move towards the direction of the rear mold 20, and the guide column 611 drives the main slide block 310 and the sub slide block 330 to move towards the direction of the rear mold 20. When the resisting part 333 on the sub slide block 330 abuts against the front mold 10, the front mold 10 resists the resisting part 333 to drive the sub slide block 330 to move along the first slide rail structure 351, until the molding cavity 50 of the molding cover plate is closed.

[0073] In summary, the beneficial effects of the present application are that the trim strip injection mold 100 sets the trim strip buckle injection slot 331 in the slider structure 30, and through the sliding fit of the main slider 310 and the auxiliary slider 330, the demolding of the trim strip buckle is realized, the injection mode of the existing technology is improved, the problem of overflow of the foaming material from the insertion hole during the foaming of the refrigerator door body is avoided, the quality of the refrigerator appearance is ensured, the overall structure is compact, and the installation is convenient. And the first slide rail structure 351 adopts the design of the dovetail guide groove and the dovetail guide column, which improves the transmission accuracy of the first slide rail structure 351.

[0074] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0075] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A trim strip injection mold, comprising a front mold, a rear mold, and a slider structure disposed on the side of the rear mold, wherein the front mold, the rear mold, and the slider structure cooperate to form a molding cavity for injection molding a trim strip product, the molding cavity comprising an upper flange molding cavity for injection molding an upper flange of the trim strip and a lower flange molding cavity for injection molding a lower flange of the trim strip; characterized in that, The slider structure includes: The main slider is used to cooperate with the rear mold to form the lower flange forming cavity; The secondary slider is movably mounted on the main slider, and the secondary slider is provided with an injection groove for injection molding trim clips; The first driving structure includes a support member and a first slide rail structure connecting the main slider and the secondary slider. The projection of the projection of the sliding direction of the secondary slider along the first slide rail structure onto the same plane intersects the projection of the moving direction of the main slider onto the same plane, which is used to drive the secondary slider to move in the direction of disengaging from the trim buckle. A limiting structure is used to hold the secondary slider so that the secondary slider moves synchronously with the main slider; The trim injection mold further includes a second drive structure for driving the main slider to move in a direction away from the upper flange and the lower flange of the trim; During the mold opening process, the second driving structure drives the main slider to move in the direction of disengaging from the upper flange and lower flange of the trim strip; the first driving structure drives the secondary slider to move in the direction of disengaging from the trim strip buckle; during the process of the secondary slider disengaging from the trim strip buckle, the abutting member abuts against the secondary slider to make the secondary slider slide along the first slide rail; after the secondary slider disengages from the trim strip buckle, the limiting structure abuts against the secondary slider to make the secondary slider move synchronously with the main slider; The first slide rail structure includes a first slide groove and a first slider that cooperates with the first slide groove; wherein the first slide groove is configured as a dovetail guide groove, and the first slider is configured as a dovetail guide post that cooperates with the dovetail guide groove.

2. The trim injection mold according to claim 1, characterized in that, The supporting element is configured as an elastic element.

3. The trim injection mold according to claim 1, characterized in that, The trim injection mold also includes a rear template for mounting the rear mold, and the second driving structure includes a driving source and a second slide rail structure disposed on the rear template; wherein the main slider is mounted on the rear template through the second slide rail structure, and the driving source can drive the main slider to slide along the second slide rail structure.

4. The trim injection mold according to claim 3, characterized in that, The trim injection mold further includes a front template for mounting the front mold, and the drive source includes a guide post extending from the front template to the rear template. The guide post is mounted on the front template and movably passes through the main slider. The projections of the straight line of the extension direction of the guide post, the straight line of the sliding direction of the second slide rail structure, and the straight line of the movement direction of the front template on the same plane intersect each other. When the front template drives the guide post to move, the guide post drives the main slider to slide along the second slide rail structure.

5. The trim strip injection mold according to claim 3, characterized in that, The second slide rail structure includes a second slide groove and a second slider that cooperates with the second slide groove. The second slide groove includes a slide channel and limiting blocks installed on both sides of the slide channel. The limiting blocks have an L-shaped slot facing one side of the slide channel.

6. The trim strip injection mold according to claim 1, characterized in that, The main slider includes a lower slider and an upper slider. The lower slider is provided with a plurality of upper sliders, and the sub-slider is connected to the upper slider through the first driving structure.

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