Nine-corner interchanging insert tray injection mold

Abstract

The utility model belongs to mould technical field especially relates to a nine angle interchanges insert block tray injection mold. The utility model discloses, including tray injection lower mould and tray injection upper mould, be equipped with injection split flow spare on the tray injection upper mould, be equipped with four border frame boards between the tray injection lower mould and tray injection upper mould, four border frame boards form insert block setting space and surround, be equipped with replaceable insert block subassembly in the insert block setting space, be equipped with two side fixed frame boards and two end fixed frame boards on the tray injection lower mould. The utility model discloses in the use process, through the cooperation between replaceable insert block subassembly and staggered horizontal vertical groove forming structure, can form horizontal groove structure and vertical groove structure of tray plastic piece in one injection process, need not carry out secondary processing, significantly improved production efficiency, reduced processing cost.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a nine-corner interchangeable insert tray injection mold. Background Technology

[0002] In the field of pallet injection molding, traditional mold structures often struggle to efficiently mold pallet parts with complex horizontal and vertical groove structures. To achieve the molding of both horizontal and vertical grooves on a pallet, the conventional method involves secondary processing—that is, after the initial injection molding, additional milling, stamping, and other machining processes on the semi-finished product. This not only increases production time and costs but also easily leads to dimensional inaccuracies. Furthermore, traditional mold inserts typically use an integral structure; if a part is damaged, the entire insert needs to be replaced, resulting in high maintenance costs and hindering cost control and production efficiency improvements for enterprises. Therefore, there is an urgent need to design a nine-corner interchangeable insert pallet injection mold that can overcome these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a pallet injection mold [application number: 201510437432.3], which includes a moving mold and a fixed mold. The moving mold is provided with an ejector plate, and the ejector plate is provided with several ejector rods that penetrate the moving mold. The moving mold and the fixed mold are respectively provided with a first switching module and a second switching module that can abut against each other. The cross-section of the first switching module and the second switching module is square. The four identical sides of the first switching module and the second switching module are respectively provided with forming blocks. The moving mold and the fixed mold are respectively provided with a first fixing groove and a second fixing groove for fixing the first switching module and the second switching module. However, in the use of this solution, if the horizontal and vertical grooves on the pallet are to be formed, secondary processing is still required. Moreover, if the mold insert is partially damaged, the entire piece needs to be replaced, resulting in low production efficiency and high subsequent maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a nine-corner interchangeable insert tray injection mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A nine-corner interchangeable insert tray injection mold includes a tray injection lower mold and a tray injection upper mold. An injection diverter is provided above the tray injection upper mold. Four frame plates are provided between the tray injection lower mold and the tray injection upper mold, forming an insert placement space. An interchangeable insert assembly is provided within the insert placement space. The tray injection lower mold is provided with two side fixing brackets and two end fixing brackets. The side fixing brackets and end fixing brackets are provided with an interlaced horizontal and vertical groove forming structure that passes through the frame plates and extends into the interchangeable insert assembly. A straight ejector is provided below the tray injection lower mold, and the position of the straight ejector corresponds to that of the interchangeable insert assembly.

[0007] In the aforementioned nine-corner interchangeable insert tray injection mold, the staggered horizontal and vertical groove forming structure includes several horizontal groove forming slides disposed on the side fixed frame plate and several vertical groove forming slides disposed on the end fixed frame plate, wherein the horizontal groove forming slides and the vertical groove forming slides are staggered.

[0008] In the aforementioned nine-corner interchangeable insert tray injection mold, the two side fixing brackets are arranged facing each other, and the transverse groove forming slides on the two side fixing brackets are also arranged facing each other. The two end fixing brackets are arranged facing each other, and the vertical groove forming slides on the two end fixing brackets are also arranged facing each other.

[0009] In the aforementioned nine-corner interchangeable insert tray injection mold, the transverse groove forming slide is located below the vertical groove forming slide, and the center line of the transverse groove forming slide is perpendicular to the center line of the vertical groove forming slide.

[0010] In the aforementioned nine-corner interchangeable insert tray injection mold, the side fixing frame plate is provided with a side fixing slide that can reciprocate linearly along one end of the tray injection mold, which is close to or far from the lower mold. The side fixing slide is fixed to the transverse groove forming slide by a screw block. The side fixing frame plate is provided with a first cylinder for driving the side fixing slide. The side fixing frame plate is provided with a first limiting rail. The side fixing slide slide slides in sliding engagement with the first limiting rail.

[0011] In the above-mentioned nine-corner interchangeable insert tray injection mold, the end fixing frame plate is provided with an end fixing slide that can reciprocate linearly along one end of the tray injection mold, which is close to or far away from the lower mold. The end fixing slide is fixed to the vertical groove forming slide by a screw block. The end fixing frame plate is provided with a second cylinder for driving the end fixing slide. The end fixing frame plate is provided with a second limiting rail, and the end fixing frame plate slides in cooperation with the second limiting rail.

[0012] In the aforementioned nine-corner interchangeable insert tray injection mold, the replaceable insert assembly includes several tray-shaped inserts disposed in the insert placement space. Each tray-shaped insert has several horizontal and vertical grooves. The horizontal groove forming slide bar slides in cooperation with the horizontal grooves, and the vertical groove forming slide bar slides in cooperation with the vertical grooves.

[0013] In the aforementioned nine-corner interchangeable insert tray injection mold, the injection diversion component includes an injection main plate and an injection diversion plate disposed above the upper mold of the tray injection.

[0014] In the above-mentioned nine-corner interchangeable insert tray injection mold, the straight ejector demolding component includes a fixed base plate disposed below the tray injection lower mold, the fixed base plate is provided with an ejector rod fixing slide plate, the ejector rod fixing slide plate is provided with a plurality of parallel straight ejector rods, and the straight ejector rods pass through the tray forming insert.

[0015] In the aforementioned nine-corner interchangeable insert tray injection mold, the fixed base plate is provided with two anti-deviation irons, and the push rod fixing slide plate is in sliding cooperation with the anti-deviation irons.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. In use, this utility model, through the cooperation between the replaceable insert components and the staggered horizontal and vertical groove molding structure, can simultaneously mold the horizontal and vertical groove structures of the tray plastic parts in one injection molding process, without the need for secondary processing, which significantly improves production efficiency and reduces processing costs.

[0018] 2. The replaceable insert assembly in this utility model is assembled from a combined insert structure, which is a modular design. When the insert is damaged, only the damaged part of the insert needs to be replaced, without replacing the whole piece, which greatly reduces the subsequent maintenance cost and also facilitates the rapid maintenance and upgrading of the mold.

[0019] 3. The replaceable feature of the insert components and the adjustability of the horizontal and vertical groove forming structure in this utility model enable the mold to adapt to the production needs of pallets of different specifications and shapes, thereby enhancing the versatility and applicability of the mold.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a partial structural schematic diagram of the present invention.

[0023] Figure 3 This is a partial structural schematic diagram of another aspect of this utility model.

[0024] Figure 4 This is a partial structural schematic diagram of another aspect of this utility model.

[0025] In the diagram: 1. Lower mold for pallet injection; 2. Upper mold for pallet injection; 3. Injection manifold; 4. Frame plate; 5. Replaceable insert assembly; 6. Side fixing frame plate; 7. End fixing frame plate; 8. Interlaced horizontal and vertical groove forming structure; 9. Straight ejector demolding component; 10. Horizontal groove forming slide bar; 11. Vertical groove forming slide bar; 12. Side fixing slide; 13. First cylinder; 14. First limit rail; 15. End fixing slide; 16. Second cylinder; 17. Second limit rail; 18. Pallet forming insert; 19. Horizontal slide groove; 20. Vertical slide groove; 21. Injection main board; 22. Injection manifold; 23. Fixed base plate; 24. Ejector rod fixing slide plate; 25. Straight ejector rod; 26. Anti-deviation iron. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, a nine-corner interchangeable insert tray injection mold includes a tray injection lower mold 1 and a tray injection upper mold 2. An injection diversion component 3 is provided above the tray injection upper mold 2. Four frame plates 4 are provided between the tray injection lower mold 1 and the tray injection upper mold 2, forming an insert placement space. An interchangeable insert assembly 5 is provided in the insert placement space. Two side fixing brackets 6 and two end fixing brackets 7 are provided on the tray injection lower mold 1. The side fixing brackets 6 and the end fixing brackets 7 are provided with an interlaced horizontal and vertical groove forming structure 8 that passes through the frame plates 4 and extends into the interchangeable insert assembly 5. A straight ejector 9 is provided below the tray injection lower mold 1, and the position of the straight ejector 9 corresponds to that of the interchangeable insert assembly 5.

[0028] In this embodiment, the injection flow divider 3 is used to evenly distribute the injection molding material into the mold cavity. Four side plates 4 are provided between the lower mold 1 and the upper mold 2 of the tray injection molding. The four side plates 4 enclose a space for insert placement. A replaceable insert assembly 5 is provided in this space. The lower mold 1 of the tray injection molding is provided with two side fixing brackets 6 and two end fixing brackets 7. The side fixing brackets 6 and the end fixing brackets 7 are provided with an interlaced horizontal and vertical groove forming structure 8 that passes through the side plates 4 and extends into the replaceable insert assembly 5. A straight ejector 9 is provided below the lower mold 1 of the tray injection molding. The position of the straight ejector 9 corresponds to that of the replaceable insert assembly 5 so that the tray plastic part can be ejected after injection molding. Through the cooperation between the replaceable insert assembly and the interlaced horizontal and vertical groove forming structure, the horizontal groove structure and the vertical groove structure of the tray plastic part can be formed simultaneously in one injection molding process without secondary processing, which significantly improves production efficiency and reduces processing costs.

[0029] It achieves integrated functions of uniform raw material injection, stable positioning of inserts, and reliable demolding of plastic parts, breaking through the traditional single cavity design of molds and constructing a composite structure of "basic mold frame + replaceable inserts + molding slide".

[0030] Combination Figure 1-4 As shown, the staggered horizontal and vertical groove forming structure 8 includes several horizontal groove forming slides 10 disposed on the side fixing frame plate 6 and several vertical groove forming slides 11 disposed on the end fixing frame plate 7. The horizontal groove forming slides 10 and vertical groove forming slides 11 are staggered. The two side fixing frame plates 6 are arranged opposite each other, and the horizontal groove forming slides 10 on the two side fixing frame plates 6 are also arranged opposite each other. The two end fixing frame plates 7 are arranged opposite each other, and the vertical groove forming slides 11 on the two end fixing frame plates 7 are also arranged opposite each other. The horizontal groove forming slides 10 are located below the vertical groove forming slides 11, and the center line of the horizontal groove forming slides 10 is perpendicular to the center line of the vertical groove forming slides 11.

[0031] In this embodiment, during the injection molding process, the horizontal groove forming slide 10 and the vertical groove forming slide 11 cooperate with the replaceable insert assembly 5 to simultaneously form the horizontal and vertical groove structure of the tray plastic part. This staggered arrangement greatly improves the forming efficiency and accuracy of the groove structure compared with the traditional step-by-step molding or secondary processing, and reduces the error caused by multiple processing.

[0032] Preferred Solution: The horizontal groove forming slide bar 10 is slidably connected to the side fixing plate 6 via a dovetail groove, and the vertical groove forming slide bar 11 is assembled to the end fixing plate 7 in the same manner. The two types of slide bars adopt a stepped staggered layout. A 5mm gap is left between the bottom surface of the horizontal slide bar 10 and the top surface of the vertical slide bar 11 to avoid movement interference. The ends of the slide bars are designed with a 45° chamfer to cooperate with the guide slope of the insert slide groove to ensure fast and accurate alignment. The staggered interlocking of the horizontal and vertical slide bars allows the mold to simultaneously extrude the plastic melt during the mold closing process, forming a crisscrossing groove structure, reducing 2-3 processes compared to traditional step-by-step processing; the two side fixing plates 6 are kept parallel to the lower mold 1 by positioning keys, and the horizontal groove forming slide bars 1 on them are... The 0 sections are distributed in a mirror symmetrical manner; similarly, the end fixing plate 7 is also symmetrically arranged with vertical groove forming slides 11. This layout ensures that the grooves on both sides of the tray are evenly stressed, and the molding size error is controlled within ±0.1mm. The symmetrical structure effectively eliminates the eccentric stress during the injection molding process, improves the structural strength of the tray, and reduces the risk of warping deformation. The center line of the horizontal groove forming slide 10 intersects the vertical groove forming slide 11 at a 90° angle, and the installation height of the horizontal slide is lower than that of the vertical slide. This design allows the horizontal and vertical slides to form a three-dimensional support within the insert, resulting in uniform melt flow resistance, avoiding local air trapping and weld lines. The vertically intersecting spatial layout optimizes the melt flow path, improves molding quality, and increases the product qualification rate.

[0033] The side fixing plate 6 is provided with a side fixing slide 12 that can reciprocate linearly along one end of the tray injection mold 1, which is close to or away from the tray. The side fixing slide 12 is fixed to the transverse groove forming slide 10 by a screw block. The side fixing plate 6 is provided with a first cylinder 13 for driving the side fixing slide 12. The side fixing plate 6 is provided with a first limiting rail 14. The side fixing slide 12 slides in cooperation with the first limiting rail 14.

[0034] In this embodiment, when it is necessary to replace the insert or adjust the transverse groove structure, the first cylinder 13 drives the side fixed slide block 12 to slide along the first limiting track 14, thereby causing the transverse groove forming slide bar 10 to separate from the replaceable insert assembly 5, which facilitates the disassembly and installation of the insert. This drive and limiting structure design makes the position adjustment of the transverse groove forming slide bar 10 more precise and convenient, further improving the operation convenience and practicality of the mold.

[0035] Combination Figure 3-4As shown, the end fixing frame plate 7 is provided with an end fixing slide 15 that can reciprocate linearly along one end of the tray injection mold 1, which is close to or away from the tray. The end fixing slide 15 is fixed to the vertical groove forming slide 11 by a screw block. The end fixing frame plate 7 is provided with a second cylinder 16 for driving the end fixing slide 15. The end fixing frame plate 7 is provided with a second limiting rail 17. The end fixing frame plate 7 and the second limiting rail 17 are slidably engaged.

[0036] In this embodiment, the end fixing plate 7 is provided with an end fixing slide 15 that can reciprocate linearly along one end of the lower mold 1 of the tray injection molding. The end fixing slide 15 is fixed to the vertical groove forming slide 11 by a screw block. The end fixing plate 7 is provided with a second cylinder 16 for driving the end fixing slide 15, and a second limiting rail 17 is also provided. The end fixing slide 15 and the second limiting rail 17 slide in cooperation. Its working principle is similar to the driving structure of the horizontal groove forming slide. The second cylinder 16 can drive the end fixing slide 15 to slide along the second limiting rail 17, so as to realize the separation or cooperation of the vertical groove forming slide 11 and the replaceable insert assembly 5. The independent driving structure of the horizontal and vertical groove forming slides allows the mold to flexibly adapt to the groove forming requirements of different shapes and sizes.

[0037] The replaceable insert assembly 5 includes a plurality of tray-shaped inserts 18 disposed in the insert placement space. Each tray-shaped insert 18 has a plurality of horizontal grooves 19 and vertical grooves 20. The horizontal groove-shaped slide bar 10 is slidably engaged with the horizontal grooves 19, and the vertical groove-shaped slide bar 11 is slidably engaged with the vertical grooves 20.

[0038] In this embodiment, during injection molding, the horizontal groove forming slide 10 and the vertical groove forming slide 11 are respectively inserted into the corresponding horizontal slide 19 and vertical slide 20, forming a complete mold cavity together with the tray forming insert 18, realizing the synchronous forming of the horizontal and vertical grooves of the tray plastic part. When the insert is partially damaged, due to the use of the combined insert structure, only the damaged single or multiple tray forming inserts 18 need to be replaced, without replacing the entire insert assembly, which greatly reduces maintenance costs.

[0039] Combination Figure 1-2 As shown, the injection molding diversion component 3 includes an injection molding main plate 21 and an injection molding diversion plate 22 disposed above the tray injection molding upper mold 2.

[0040] In this embodiment, the injection molding main board 21 is connected to the injection molding equipment. After the raw material is introduced, the raw material is evenly distributed to the mold cavity through the injection molding manifold 22 to ensure that the injection filling of each part of the tray plastic part is uniform, avoid injection defects such as material shortage and shrinkage, and improve the molding quality and pass rate of the product.

[0041] Combination Figure 1-4 As shown, the straight ejector demolding component 9 includes a fixed base plate 23 disposed below the tray injection mold 1. The fixed base plate 23 is provided with an ejector rod fixing slide plate 24. The ejector rod fixing slide plate 24 is provided with a plurality of parallel straight ejector rods 25. The straight ejector rods 25 pass through the tray forming insert 18. The fixed base plate 23 is provided with two anti-deviation irons 26. The ejector rod fixing slide plate 24 and the anti-deviation irons 26 are slidably engaged.

[0042] In this embodiment, after injection molding is completed, the ejector pin fixing slide plate 24 is pushed to slide along the anti-deviation iron 26 by the driving device (such as hydraulic cylinder), which drives the straight ejector pin 25 to push upward and push the tray plastic part out of the mold cavity, thus completing the demolding process. The anti-deviation iron 26 effectively prevents the ejector pin fixing slide plate 24 from deviating during the movement, ensuring the stability and reliability of the demolding action and avoiding product damage caused by improper demolding.

[0043] The working principle of this utility model is as follows:

[0044] According to production requirements, select appropriate specifications for the pallet forming insert 18. Secure the transverse groove forming slide 10 and the vertical groove forming slide 11 to the side fixing slide 12 and the end fixing slide 15 respectively using screw blocks. Drive the side fixing slide 12 and the end fixing slide 15 using the first cylinder 13 and the second cylinder 16 respectively, causing the transverse groove forming slide 10 and the vertical groove forming slide 11 to insert into the transverse groove 19 and the vertical groove 20 of the pallet forming insert 18. This completes the mold assembly and debugging. Close the lower pallet injection mold 1 and the upper pallet injection mold 2. Injection material is introduced through the injection main plate 21 of the injection diverter 3, and after being evenly distributed by the injection diverter plate 22, it is injected into the components consisting of the frame plate 4 and the replaceable insert assembly. Within the mold cavity formed by the 5 and the staggered horizontal and vertical groove forming structure 8, the raw material fills the entire cavity under injection pressure. After cooling and solidification, a tray plastic part with horizontal and vertical groove structures is formed. After injection molding is completed, the straight ejector 9 is activated. Under the limiting action of the anti-deviation iron 26, the ejector pin 24 drives the straight ejector 25 to eject the tray plastic part from the mold cavity. If the insert is damaged, the side fixed slide 12 and the end fixed slide 15 are driven by the first cylinder 13 and the second cylinder 16 respectively, so that the horizontal groove forming slide 10 and the vertical groove forming slide 11 are separated from the tray forming insert 18. The damaged tray forming insert 18 can then be disassembled and replaced. Then the mold is reassembled for the next injection molding production.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0046] Although this document frequently uses terms such as tray injection lower mold 1, tray injection upper mold 2, injection manifold 3, frame plate 4, replaceable insert assembly 5, side fixing frame plate 6, end fixing frame plate 7, staggered horizontal and vertical groove forming structure 8, straight ejector demolding component 9, horizontal groove forming slide 10, vertical groove forming slide 11, side fixing slide 12, first cylinder 13, first limit rail 14, end fixing slide 15, second cylinder 16, second limit rail 17, tray forming insert 18, horizontal slide 19, vertical slide 20, injection main plate 21, injection manifold 22, fixed base plate 23, ejector pin fixing slide plate 24, straight ejector pin 25, anti-deviation iron 26, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A nine-corner interchangeable insert tray injection mold, comprising a lower tray injection mold (1) and an upper tray injection mold (2), characterized in that, An injection flow divider (3) is provided above the upper mold of the tray injection molding (2). Four side plates (4) are provided between the lower mold of the tray injection molding (1) and the upper mold of the tray injection molding (2). The four side plates (4) enclose a space for placing the insert. A replaceable insert assembly (5) is provided in the space for placing the insert. Two side fixing brackets (6) and two end fixing brackets (7) are provided on the lower mold of the tray injection molding (1). The side fixing brackets (6) and the end fixing brackets (7) are provided with an interlaced horizontal and vertical groove forming structure (8) that passes through the side plates (4) and extends into the replaceable insert assembly (5). A straight ejector (9) is provided below the lower mold of the tray injection molding (1). The position of the straight ejector (9) corresponds to that of the replaceable insert assembly (5).

2. The injection mold for the nine-cornered interchangeable insert tray according to claim 1, characterized in that, The staggered horizontal and vertical groove forming structure (8) includes a plurality of horizontal groove forming slides (10) set on the side fixed frame plate (6) and a plurality of vertical groove forming slides (11) set on the end fixed frame plate (7), wherein the horizontal groove forming slides (10) and the vertical groove forming slides (11) are staggered.

3. The injection mold for the nine-cornered interchangeable insert tray according to claim 2, characterized in that, Two side fixing plates (6) are arranged facing each other, and the transverse groove forming slides (10) on the two side fixing plates (6) are also arranged facing each other. Two end fixing plates (7) are arranged facing each other, and the vertical groove forming slides (11) on the two end fixing plates (7) are also arranged facing each other.

4. The injection mold for the nine-cornered interchangeable insert tray according to claim 3, characterized in that, The transverse groove forming slide (10) is located below the vertical groove forming slide (11), and the center line of the transverse groove forming slide (10) is perpendicular to the center line of the vertical groove forming slide (11).

5. The injection mold for the nine-cornered interchangeable insert tray according to claim 4, characterized in that, The side fixing frame plate (6) is provided with a side fixing slide (12) that can reciprocate linearly along one end near or away from the lower mold (1) of the tray injection molding. The side fixing slide (12) is fixed to the transverse groove forming slide (10) by a screw block. The side fixing frame plate (6) is provided with a first cylinder (13) for driving the side fixing slide (12). The side fixing frame plate (6) is provided with a first limiting rail (14). The side fixing slide (12) and the first limiting rail (14) are slidably engaged.

6. The injection mold for a nine-corner interchangeable insert tray according to any one of claims 3-5, characterized in that, The end fixing plate (7) is provided with an end fixing slide (15) that can reciprocate linearly along one end close to or away from the lower mold (1) of the tray injection molding. The end fixing slide (15) is fixed to the vertical groove forming slide (11) by a screw block. The end fixing plate (7) is provided with a second cylinder (16) for driving the end fixing slide (15). The end fixing plate (7) is provided with a second limiting rail (17). The end fixing plate (7) and the second limiting rail (17) are slidably engaged.

7. The injection mold for a nine-cornered interchangeable insert tray according to any one of claims 3-5, characterized in that, The replaceable insert assembly (5) includes a plurality of tray-shaped inserts (18) disposed in the insert placement space. The tray-shaped inserts (18) have a plurality of horizontal grooves (19) and vertical grooves (20). The horizontal groove-shaped slide bar (10) is slidably engaged with the horizontal groove (19), and the vertical groove-shaped slide bar (11) is slidably engaged with the vertical groove (20).

8. The injection mold for the nine-cornered interchangeable insert tray according to claim 1, characterized in that, The injection molding manifold (3) includes an injection molding main plate (21) and an injection molding manifold (22) disposed above the upper injection mold (2) of the tray.

9. The injection mold for the nine-cornered interchangeable insert tray according to claim 7, characterized in that, The straight ejector (9) includes a fixed base plate (23) disposed below the tray injection mold (1). The fixed base plate (23) is provided with an ejector pin fixing slide plate (24). The ejector pin fixing slide plate (24) is provided with a plurality of parallel straight ejector pins (25). The straight ejector pins (25) pass through the tray forming insert (18).

10. The injection mold for the nine-cornered interchangeable insert tray according to claim 9, characterized in that, The fixed base plate (23) is provided with two anti-deviation irons (26), and the top rod fixing slide plate (24) is slidably engaged with the anti-deviation irons (26).

Images