An injection molding mold for a trim strip

Abstract

The utility model discloses a kind of decorative strip injection moulding mould, comprising: lower mould, with a die cavity and fixed on placement mesa;Upper mould, relative to the lower mould moving cover is set on die cavity to realize the forming of decorative strip;Ejection block, obliquely wear is set in die cavity;Push rod, sliding connection is in ejection block and moves with ejection block ascending to decorative strip direction;First sliding slot is equipped on ejection block, first sliding block is equipped in first sliding slot, push rod is connected on push rod;Lower mould is equipped with guide cavity, when ejection block moves, first sliding block is resisted on the inner wall of guide cavity and moves in first sliding slot;Forming cavity is equipped on ejection block, and decorative strip is formed and buckled in forming cavity;Push rod is worn in forming cavity, so that push rod moves into forming cavity and pushes out decorative strip from forming cavity;The present application can completely eject product, avoid wearing product when ejecting.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a decorative strip injection molding mold. Background Technology

[0002] Trim strips, as key aesthetic and functional components in automotive interiors, home appliance casings, and architectural decorations, often require complex structures such as snap-fits, irregular curved surfaces, and undercuts to meet assembly and aesthetic demands. After injection molding, they need to be precisely demolded via a mold ejection mechanism. The demolding process must not only ensure the trim strip leaves the mold cavity intact but also avoid defects such as surface scratches, deformation, and snap-fit ​​breakage; otherwise, it will directly affect the product's assembly accuracy and appearance quality. Therefore, the ejection mechanism of the trim strip injection molding mold must meet three core requirements: "uniform ejection force," "precise guidance," and "adaptation to complex demolding structures." Its structural design directly determines production efficiency and finished product qualification rate.

[0003] The ejection mechanism of existing trim injection molding molds has obvious design flaws, making it difficult to meet the high-efficiency demolding requirements of complex trim structures. Specific problems are as follows: First, most existing molds use vertically arranged ejector pins or flat ejector blocks for demolding. For trims with undercuts, deep cavities, or irregular curved surfaces, the vertical ejection direction is inconsistent with the force direction of the product's snaps and curved surfaces. The ejection force is concentrated in a local area, which can easily cause trim snaps to break, surface scratches, or overall deformation. Although some molds use inclined ejector pins, the fit between the ejector pins and the mold cavity and the product is poor. During ejection, obvious ejector pin marks are easily left on the product surface, affecting the appearance quality.

[0004] Secondly, in existing ejection structures, the ejector and push rod are mostly rigidly connected, lacking a coordinated design of grooves, sliders, and guide cavities adapted for inclined ejection. During ejection, the push rod is prone to deviation due to uneven force, making it impossible to accurately push the product along the preset direction. In particular, when the ejector block is set at an angle, the slider without guide constraint is prone to deviating from the preset trajectory, causing the push rod to collide and wear against the inner wall of the molding cavity. This not only affects the service life of the mold, but also causes local overload of the trim due to the deviation in the ejection position, leading to damage.

[0005] Third, the existing molds mostly have separate designs for the molding cavity and ejection mechanism. After the trim strip is formed, it is tightly fastened in the molding cavity and demolded by the single thrust of the ejector pin or ejector block. The ejection force needs to overcome the adsorption force and friction between the product and the molding cavity, which can easily lead to incomplete ejection (product residue in the molding cavity) or product deformation due to excessive ejection force. In order to improve the demolding effect, some molds need to be equipped with additional mold release agent spraying or air blowing mechanisms, which increases the production process and cost, and may also affect the bonding performance of the product in subsequent assembly due to mold release agent residue. Utility Model Content

[0006] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0007] In order to overcome the problems of easy wear and incomplete ejection of products during the ejection action in the prior art, this utility model provides a decorative strip injection molding die.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: a decorative strip injection molding die, comprising: The lower mold has a cavity and is fixed on the placement platform; The upper mold moves relative to the lower mold and covers the mold cavity to form the decorative strip; Ejector block, inclined and inserted into the mold cavity; The push rod is slidably connected to the ejector block and moves towards the trim strip as the ejector block rises. The ejector block is provided with a first groove, and a first slider is provided in the first groove. The push rod is connected to the push rod. The lower mold is provided with a guide cavity. When the ejector block moves, the first slider abuts against the inner wall of the guide cavity and moves in the first groove. The ejector block has a molding cavity, and the trim strip is molded and fastened inside the molding cavity; the push rod passes through the molding cavity so that when the push rod moves into the molding cavity, it pushes the trim strip out of the molding cavity.

[0009] Furthermore, the trim injection molding die also includes an ejector plate, which is located below the lower mold. An extension rod is provided on the ejector block, and the extension rod is connected to the ejector plate. The ejector plate can move relative to the lower mold to drive the ejector block to move into the mold cavity.

[0010] Furthermore, the ejector plate is provided with a connecting block, the connecting block is provided with a connecting groove, and one end of the extension rod is provided with a connecting part, which is slidably connected in the connecting groove.

[0011] Furthermore, the connecting groove has a T-shaped structure, and the connecting part has an inverted T-shaped structure.

[0012] Furthermore, the first slider is provided with a first spring, one end of which abuts against the end face of the first slide groove; one end of the first slide groove is provided with a first through cavity, the first slide groove and the forming cavity are connected through the first through cavity, and the push rod passes through the first through cavity.

[0013] Furthermore, the inner wall of the guide cavity is provided with a first groove and a second groove, which are arranged adjacent to each other, and the depth of the first groove is greater than the depth of the second groove; when the first slider moves with the ejector block, it abuts against the inner wall of the first groove and the second groove in sequence.

[0014] Furthermore, the ejector plate is provided with a plurality of first ejector pins, which are evenly inserted into the mold cavity along the length of the mold cavity.

[0015] Furthermore, the ejector plate is provided with multiple second ejector pins, and the lower mold is provided with multiple second through cavities. The second through cavities are located on the side wall of the mold cavity and communicate with the mold cavity. The second ejector pins are inserted into the second through cavities.

[0016] Furthermore, the ejector plate is provided with a guide rod, and the lower mold is provided with a guide groove and a guide hole. The guide hole is located at one end of the guide groove, and the guide rod passes through the guide hole. A second spring is sleeved on the guide rod, with one end of the second spring abutting against the ejector plate and the other end abutting against the end face of the guide groove.

[0017] Furthermore, the lower mold is provided with multiple forming blocks, and the forming blocks are provided with second sliders. The lower mold is provided with a second slide groove for the second sliders to move. The forming blocks are also provided with fixing holes, and fixing rods are inserted into the fixing holes. The bottom of the second slide groove is provided with a fixing groove. The fixing holes and fixing grooves are inclined.

[0018] The advantages of this utility model are: Firstly, the ejector block is inclined and passes through the mold cavity, and the push rod moves towards the trim strip as the ejector block rises: Compared with existing vertical or inclined ejector pins, the inclined ejector block can make the ejection direction match the structural force direction of the trim strip's undercut and deep cavity. Combined with the push rod's precise pushing of the trim strip in the molding cavity, the ejection force can be evenly distributed to the trim strip's contact surface, avoiding snap-fit ​​breakage and surface scratches caused by local overload. At the same time, the push rod passes through the molding cavity and acts directly on the trim strip, without relying on a single point of force from the ejector pin, which can reduce ejection marks, ensure the appearance quality of the trim strip, and meet the needs of high-precision appearance parts such as automotive interiors and home appliance shells. Secondly, the first groove and the first slider of the ejector block form a cooperative guiding structure with the lower mold guide cavity: when the ejector block moves, the first slider abuts against the inner wall of the guide cavity and slides along the first groove, providing a stable trajectory constraint for the push rod, avoiding push rod misalignment caused by existing rigid connections or lack of guidance; it not only prevents the push rod from colliding and wearing with the inner wall of the molding cavity, extending the service life of the core components of the mold, but also ensures that the push rod push position is accurate and consistent each time it is demolded, reducing local damage to the trim caused by position deviation, and greatly improving the stability of mass production.

[0019] Thirdly, after the trim strip is formed, it is snapped into the molding cavity of the ejector block. When the ejector block rises, the push rod moves into the molding cavity simultaneously, directly pushing the trim strip out of the molding cavity. This structure, through the dual action of lifting the ejector block and actively pushing out the push rod, can easily break the tight fit between the trim strip and the molding cavity, without the need for additional mold release agent spraying or air blowing mechanisms. This saves on extra processes and material costs, avoids mold release agent residue affecting the bonding performance of the trim strip in subsequent assembly, and eliminates production interruptions caused by incomplete ejection, thus improving demolding efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0021] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0022] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the injection molding die for decorative strips in one embodiment of the present invention.

[0023] Figure 2 for Figure 1 A cross-sectional view of the trim injection molding die in the illustrated embodiment.

[0024] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0025] Figure 4 for Figure 1 A cross-sectional view of the first slider of the trim injection molding die in the illustrated embodiment.

[0026] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0027] Figure 6 for Figure 1 A cross-sectional view of the guide rod of the trim injection molding die in the illustrated embodiment.

[0028] Figure 7 for Figure 1 A schematic diagram of the lower mold of the trim strip injection molding die in the illustrated embodiment.

[0029] Figure 8 for Figure 7 Enlarged view of point C in the image.

[0030] Figure 9 for Figure 1 Schematic diagram of the ejector block of the trim strip injection molding die in the illustrated embodiment. Figure 1 .

[0031] Figure 10 for Figure 1 Schematic diagram of the ejector block of the trim strip injection molding die in the illustrated embodiment. Figure 2 .

[0032] The meanings of the reference numerals in the figure are as follows: 101. Lower mold; 102. Upper mold; 103. Ejector plate; 104. Placement platform; 105. Molding block; 106. Second slider; 107. Ejector block; 108. First ejector pin; 109. Extension rod; 110. Connecting block; 111. Connecting part; 112. Connecting groove; 113. First slider; 114. Push rod; 115. First spring; 116. Guide rod; 117. Second spring; 118. Guide cavity; 119. First groove; 120. Second groove; 121. Second slide groove; 122. Fixing groove; 123. Third through cavity; 124. Second through cavity; 125. Molding cavity; 126. First slide groove; 127. First through cavity. Detailed Implementation

[0033] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0034] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0035] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0036] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0037] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0038] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figures 1-10 As shown, a decorative strip injection molding die includes a lower mold 101, an upper mold 102, an ejector block 107, and a push rod 114.

[0040] The lower mold 101 has a mold cavity and is fixed on the placement platform 104; the upper mold 102 moves relative to the lower mold 101 and covers the mold cavity to form the trim strip; the ejector block 107 is inclined and passes through the mold cavity; the push rod 114 is slidably connected to the ejector block 107 and moves towards the trim strip as the ejector block 107 rises; the ejector block 107 has a first slide groove 126, and a first slider 113 is provided in the first slide groove 126, and the push rod 114 is connected to the push rod 114; the lower mold 101 has a guide cavity 118, and when the ejector block 107 moves, the first slider 113 abuts against the inner wall of the guide cavity 118 and moves in the first slide groove 126; the ejector block 107 has a forming cavity 125, and the trim strip is formed and fastened in the forming cavity 125; the push rod 114 passes through the forming cavity 125 so that when the push rod 114 moves into the forming cavity 125, it pushes the trim strip out of the forming cavity 125. In actual operation, the mold's workflow is as follows: First, the upper mold 102 is moved relative to the lower mold 101 and placed on the mold cavity, allowing the trim strip to complete the forming process within the cavity. At this time, the trim strip is tightly fastened within the forming cavity 125 of the ejector block 107. When it is necessary to remove the formed trim strip from the mold, the ejector block 107 is driven to move relative to the lower mold 101. During the movement of the ejector block 107, the first slider 113 on the ejector block 107 drives the push rod 114 to move, ejecting the trim strip from the forming cavity 125 for easy collection.

[0041] Furthermore, the injection molding die for the trim strip also includes an ejector plate 103, which is located below the lower mold 101. An extension rod 109 is provided on the ejector block 107, and the extension rod 109 is connected to the ejector plate 103. The ejector plate 103 can move relative to the lower mold 101, causing the ejector block 107 to move into the mold cavity. When the ejector plate 103 moves upward relative to the lower mold 101 under the action of a power device, the extension rod 109 causes the ejector block 107 to rise synchronously within the mold cavity. Because the ejector block 107 is inclined through the mold cavity, this inclined ejection method can better adapt to the complex structure of the trim strip, especially parts with undercuts, deep cavities, or irregular curved surfaces.

[0042] The ejector plate 103 is provided with a connecting block 110, which has a connecting groove 112. One end of the extension rod 109 has a connecting part 111, which is slidably connected to the connecting groove 112. The connecting groove 112 has a T-shaped structure, and the connecting part 111 has an inverted T-shaped structure. The T-shaped structure of the connecting groove 112 and the connecting part 111 ensures a stable connection between the extension rod 109 and the connecting block 110, while also allowing the extension rod 109 to have a certain sliding space within the connecting groove 112 to accommodate the positional changes of the ejector block 107 during tilting movement. When the ejector plate 103 moves the ejector block 107, the connecting part 111 slides within the connecting groove 112, allowing the ejector block 107 to rise more smoothly along the preset tilting trajectory. At the same time, this connection method can effectively transmit the power of the ejector plate 103, ensuring that the ejector block 107 can obtain sufficient force to push the trim strip out of the molding cavity 125.

[0043] Furthermore, a first spring 115 is provided on the first slider 113, with one end of the first spring 115 abutting against the end face of the first groove 126; a first cavity 127 is provided at one end of the first groove 126, and the first groove 126 and the forming cavity 125 are connected through the first cavity 127, with the push rod 114 passing through the first cavity 127. The first spring 115 provides a certain buffer and elasticity for the movement of the push rod 114. When the ejector block 107 moves and the first slider 113 slides along the first groove 126 under the action of the inner wall of the guide cavity 118, the first spring 115 will extend and retract accordingly according to the movement of the slider. During the ejection of the trim strip, the elastic force of the spring can make the push rod 114 move more smoothly into the forming cavity 125, avoiding damage to the trim strip due to sudden excessive pushing force. At the same time, after the ejection action is completed, the elastic restoring force of the spring helps the push rod 114 return to the initial position, preparing for the next forming and ejection.

[0044] The inner wall of the guide cavity 118 is provided with a first groove 119 and a second groove 120, which are arranged adjacent to each other. The depth of the first groove 119 is greater than the depth of the second groove 120. As the ejector block 107 moves, the first slider 113 abuts against the inner walls of the first groove 119 and the second groove 120 in sequence. During the movement of the ejector block 107, the first slider 113 first abuts against the inner wall of the first groove 119. Due to the greater depth of the first groove 119, a certain amount of room for movement is provided for the first slider 113, allowing the ejector block 107 to start relatively smoothly in the initial movement stage, reducing the friction with the inner wall of the guide cavity 118. As the ejector block 107 continues to move, the first slider 113 abuts against the inner wall of the second groove 120. At this time, the second groove 120 is relatively shallow, which provides stronger constraint on the first slider 113, enabling more precise control of the movement trajectory of the ejector block 107 and ensuring that the position of the push rod 114 pushing the trim strip is more accurate.

[0045] The ejector plate 103 is provided with multiple first ejector pins 108, which are evenly inserted into the mold cavity along its length. The lower mold 101 is provided with multiple third through cavities 123 for the first ejector pins 108 to pass through. The evenly distributed design makes the trim strip more evenly stressed along its length, further avoiding deformation or damage caused by uneven stress in certain areas. When the trim strip has some shallow undercuts or parts that are difficult to demold, the first ejector pins 108 can effectively lift these parts. With the ejection action of the ejector block 107 and the push rod 114, the trim strip can be more smoothly ejected from the mold cavity.

[0046] Preferably, the ejector plate 103 is provided with multiple second ejector pins, and the lower mold 101 is provided with multiple second through cavities 124. The second through cavities 124 are located on the sidewalls of the mold cavity and communicate with the mold cavity, with the second ejector pins passing through them. The arrangement of the second ejector pins further enhances the demolding effect. When the ejector plate 103 rises, the second ejector pins enter the mold cavity through the second through cavities 124, applying a pushing force to the trim strip from the sidewalls of the mold cavity. This is particularly effective when the trim strip has undercuts, protrusions, or is tightly fitted to the sidewalls of the mold cavity. The multiple second ejector pins are rationally distributed along the sidewalls of the mold cavity, providing uniform ejection force on the side of the trim strip and preventing lateral displacement or deformation due to uneven force on the side.

[0047] The ejector plate 103 is equipped with a guide rod 116, and the lower mold 101 is equipped with a guide groove and a guide hole. The guide hole is located at one end of the guide groove, and the guide rod 116 passes through the guide hole. A second spring 117 is sleeved on the guide rod 116. One end of the second spring 117 abuts against the ejector plate 103, and the other end abuts against the end face of the guide groove. The guide rod 116 and the second spring 117 play an important guiding and buffering role. During the movement of the ejector plate 103 relative to the lower mold 101, the guide rod 116 moves along the guide hole and the guide groove to ensure that the movement direction of the ejector plate 103 is accurate and to avoid deviation or shaking. This ensures that the ejector block 107 and the ejector pin can eject the trim strip according to the predetermined trajectory and position. The second spring 117 provides a buffer force during the rising and falling of the ejector plate 103. When the ejector plate 103 rises, the second spring 117 is compressed to absorb part of the impact force and prevent the ejector plate 103 from colliding violently with the lower mold 101 and damaging the mold. When the ejector plate 103 falls, the elastic restoring force of the second spring 117 can make the ejector plate 103 return to the initial position smoothly, preparing for the next ejection action.

[0048] Furthermore, the lower mold 101 is provided with multiple molding blocks 105, each molding block 105 has a second slider 106, and the lower mold 101 has a second sliding groove 121 for the second slider 106 to move. The molding block 105 also has a fixing hole, through which a fixing rod passes. The bottom of the second sliding groove 121 has a fixing slot 122. The fixing hole and fixing slot 122 are inclined. When the mold is in the closed state, the molding block 105 is stably fixed to the lower mold 101 through the cooperation of the fixing rod and the fixing slot 122, ensuring the molding accuracy of the trim during injection molding. During demolding, due to the inclined arrangement of the fixing hole and fixing slot 122, the height of the fixing rod is reduced, ensuring that the upper mold 102 can fit against the lower mold 101. When removing the molding block 105, simply pull the fixing rod along the inclined direction of the fixing hole to pull it out of the fixing hole, and then push the second slider 106 along the second sliding groove 121 to directly remove the molding block 105.

[0049] Meanwhile, the arrangement of multiple molding blocks 105 can be flexibly combined and adjusted according to the different shapes and structures of the trim strip. For some complex-shaped trim strips, multiple molding blocks 105 can be used to mold different parts separately, thereby improving the versatility and applicability of the mold. Moreover, the movement of the second slider 106 within the second slide groove 121 can be precisely controlled by an external power device to ensure that the demolding action of each molding block 105 can be performed accurately.

[0050] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A trim strip injection molding die, comprising: The lower mold (101) has a mold cavity and is fixed on the placement platform (104); The upper mold (102) moves relative to the lower mold (101) and covers the mold cavity to form the decorative strip; Its features are: The injection molding mold for the trim strip also includes: Ejector block (107) is obliquely inserted into the mold cavity; The push rod (114) is slidably connected to the ejector block (107) and moves towards the trim strip as the ejector block (107) rises; The ejector block (107) is provided with a first groove (126), and a first slider (113) is provided in the first groove (126). The push rod (114) is connected to the push rod (114). The lower mold (101) is provided with a guide cavity (118). When the ejector block (107) moves, the first slider (113) abuts against the inner wall of the guide cavity (118) and moves within the first slide groove (126). The ejector block (107) is provided with a molding cavity (125), and the trim strip is formed and fastened in the molding cavity (125); the push rod (114) passes through the molding cavity (125) so that when the push rod (114) moves into the molding cavity (125), the trim strip is pushed out from the molding cavity (125).

2. The injection molding die for decorative strips according to claim 1, characterized in that: It also includes an ejector plate (103), which is located below the lower mold (101). The ejector block (107) is provided with an extension rod (109), which is connected to the ejector plate (103). The ejector plate (103) can move relative to the lower mold (101) to drive the ejector block (107) to move into the mold cavity.

3. The injection molding die for decorative strips according to claim 2, characterized in that: The ejector plate (103) is provided with a connecting block (110), the connecting block (110) is provided with a connecting groove (112), and one end of the extension rod (109) is provided with a connecting part (111), the connecting part (111) is slidably connected in the connecting groove (112).

4. The trim injection molding die according to claim 3, characterized in that: The connecting groove (112) has a T-shaped structure, and the connecting part (111) has an inverted T-shaped structure.

5. The injection molding die for decorative strips according to claim 1, characterized in that: The first slider (113) is provided with a first spring (115), one end of the first spring (115) abuts against the end face of the first slide groove (126); one end of the first slide groove (126) is provided with a first through cavity (127), the first slide groove (126) and the forming cavity (125) are connected through the first through cavity (127), and the push rod (114) passes through the first through cavity (127).

6. The injection molding die for decorative strips according to claim 1, characterized in that: The inner wall of the guide cavity (118) is provided with a first groove (119) and a second groove (120), the first groove (119) and the second groove (120) are arranged adjacent to each other, and the depth of the first groove (119) is greater than the depth of the second groove (120); the first slider (113) moves with the ejector block (107) and abuts against the inner wall of the first groove (119) and the second groove (120) in sequence.

7. The injection molding die for decorative strips according to claim 2, characterized in that: The ejector plate (103) is provided with a plurality of first ejector pins (108), and the plurality of first ejector pins (108) are evenly inserted into the mold cavity along the length direction of the mold cavity.

8. The injection molding die for decorative strips according to claim 2, characterized in that: The ejector plate (103) is provided with a plurality of second ejector pins, and the lower mold (101) is provided with a plurality of second through cavities (124). The second through cavity (124) is located on the side wall of the mold cavity and communicates with the mold cavity. The second ejector pin passes through the second through cavity (124).

9. The injection molding die for decorative strips according to claim 1, characterized in that: The ejector plate (103) is provided with a guide rod (116), and the lower mold (101) is provided with a guide groove and a guide hole. The guide hole is located at one end of the guide groove, and the guide rod (116) passes through the guide hole. A second spring (117) is sleeved on the guide rod (116). One end of the second spring (117) abuts against the ejector plate (103), and the other end abuts against the end face of the guide groove.

10. The injection molding die for decorative strips according to claim 1, characterized in that: The lower mold (101) is provided with a plurality of forming blocks (105), the forming blocks (105) are provided with a second slider (106), the lower mold (101) is provided with a second slide groove (121) for the second slider (106) to move; the forming blocks (105) are also provided with fixing holes, a fixing rod is inserted into the fixing holes, and a fixing groove (122) is provided at the bottom of the second slide groove (121); the fixing holes and fixing grooves (122) are inclined.

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