Motorboat plastic covering part injection molding mold and accelerated ejection structure thereof

Abstract

The motorboat plastic covering part injection molding mold comprises a movable mold and a fixed mold, an ejector plate is slidably connected to the movable mold, an inclined ejector block is slidably connected to the movable mold, the inclined ejector block is connected with the ejector plate through a plurality of inclined rods, and the motorboat plastic covering part injection molding mold further comprises the accelerated ejection structure. The acceleration ejection structure comprises an acceleration ejection rod, an acceleration inclined rod and an acceleration inclined guide block, the acceleration inclined guide block is slidably connected to the ejector pin plate in the direction perpendicular to the mold opening direction, the acceleration inclined rod is fixedly connected to the movable mold, and the inclined rod penetrates through the acceleration inclined guide block in the mold opening direction inclined to the mold and is slidably connected to the acceleration inclined guide block; one end of the acceleration ejector rod penetrates through and is slidably connected to the movable mold in the mold opening direction, and the other end of the acceleration ejector rod is slidably connected to the acceleration inclined guide block in the mold opening direction inclined to the mold. The conventional ejection movement of the ejector plate is converted into the inclined and axial composite accelerated movement of the accelerated ejector rod, so that a plastic part obtains a separation speed higher than the conventional ejection speed at the early stage of demolding, and a safe distance is formed between the plastic part and the inclined ejector in advance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection mold, in particular to a kind of motorboat plastic cover injection molding mold and its accelerated ejection structure. BACKGROUND

[0002] The injection mold ejection inclined ejector structure is the demoulding component designed for the plastic part with side concave and side hole, which is composed of inclined ejector rod, guide mechanism, reset component, etc. During ejection, the inclined ejector rod moves along the inclined direction, and the demoulding of the plastic part from the fixed mold and the side concave or side hole is completed synchronously, so as to avoid the plastic part from being stuck or damaged.

[0003] As shown in Figure 15 , it is a motorboat plastic cover, which has a large number of side concave (including inner concave structure and outer concave structure) and side hole structure. The plastic cover with such shape is usually molded and ejected by the inclined ejector rod on the inner wall. However, the inner concave structure is arranged on the upper side of the motorboat plastic cover. During the ejection and demoulding by the conventional inclined ejector rod, the inclined ejector rod will collide with the inner concave part, causing damage to the inner concave part of the product. SUMMARY

[0004] In order to reduce the possibility of damage to the product during demoulding, the present application provides a kind of motorboat plastic cover injection molding mold and its accelerated ejection structure.

[0005] The motorboat plastic cover injection molding mold and its accelerated ejection structure provided by the present application adopt the following technical solution: A kind of motorboat plastic cover injection molding mold and its accelerated ejection structure, comprising a movable mold and a fixed mold, the movable mold is slidably connected with a ejector rod, the movable mold is slidably connected with an inclined ejector block, the inclined ejector block is connected with the ejector rod by a plurality of inclined rods, further comprising an accelerated ejection structure, the accelerated ejection structure comprises an accelerated ejector rod, an accelerated inclined rod and an accelerated inclined guide block, the accelerated inclined guide block is slidably connected on the ejector rod along the perpendicular to the opening direction of the mold, the accelerated inclined rod is fixedly connected on the movable mold, and the inclined rod is arranged along the inclined to the opening direction of the mold and slidably connected on the accelerated inclined guide block, one end of the accelerated ejector rod is arranged along the opening direction of the mold and slidably connected on the movable mold, and the other end is slidably connected on the accelerated inclined guide block along the inclined to the opening direction of the mold.

[0006] By adopting the above technical solution, the accelerated ejection structure converts the conventional ejection movement of the ejector rod into the inclined and axial composite acceleration movement of the accelerated ejector rod through the inclined surface transmission design of the accelerated inclined rod, the accelerated inclined guide block and the accelerated ejector rod, so that the plastic part obtains a higher demoulding speed than the conventional ejection speed in the initial demoulding stage, and the safe distance from the inclined ejector rod is opened in advance, reducing the possibility of scratching or collision between the inclined ejector rod and the upper inner concave structure during the subsequent inclined movement of the inclined ejector rod.

[0007] Preferably, the acceleration side extraction structure further comprises a side extraction block, a side extraction inclined guide block and an inclined guide rod, the side extraction block is used for forming an outer concave structure of an inner wall of a product, the side extraction block is slidably connected to the inclined guide block in a horizontal direction and is provided with a first inclined surface, the side extraction inclined guide block is slidably connected to the inclined guide block and is provided with a second inclined surface which is in abutment with the first inclined surface, one end of the inclined guide rod is slidably connected to the side extraction inclined guide block, and the other end of the inclined guide rod is mounted on the ejector plate.

[0008] By adopting the above technical scheme, the molding and fitting constraints of the inner concave structure and the inclined guide block are solved, that is, the direct ejection will be stuck in the inner concave structure; when the ejection action is started, the structure is driven by the side extraction block and the side extraction inclined guide block, the inclined guide rod pushes the side extraction inclined guide block, the side extraction block is driven to shrink into the inclined guide block, and the side extraction block is separated from the inner concave structure in advance, so that the risk of collision between the inner concave structure and the inclined guide block is eliminated from the root. The side extraction and the ejection are integrated, no additional power source is needed, the mold structure is simplified, and the demolding requirement of the complex inner concave structure is met.

[0009] Preferably, the ejector plate is further slidably connected with a sliding plate, the inclined guide rod penetrates through the ejector plate and is slidably connected to the sliding plate in a direction perpendicular to the opening direction of the mold, and when the sliding plate slides to abut against the ejector plate, the side extraction block slides into the inclined guide block to the limit position.

[0010] By adopting the above technical scheme, the sliding plate is associated with the inclined guide rod and the ejector plate, the step of "ejection after side extraction" is realized, when the sliding plate abuts against the ejector plate, the side extraction block is extracted to the limit position, and then the ejector plate can continue to eject, so that the possibility of collision caused by action misplacement is reduced, the side extraction is driven by the power of the ejector plate, no additional mechanism is needed, and the mold layout is simplified.

[0011] Preferably, the sliding plate is provided with a magnetic attraction block, the movable mold is provided with an adsorption block which can be magnetically attracted to the magnetic attraction block, and when the ejector plate is reset during mold closing, the adsorption block drives the magnetic attraction block to move the sliding plate to the side away from the ejector plate to reset.

[0012] By adopting the above technical scheme, the magnetic attraction block and the adsorption block are matched to automatically drive the sliding plate to reset the side extraction block, the magnetic reset ensures that the side extraction block accurately returns to the initial molding position, guarantees the molding precision of the inner concave structure, provides a basis for the anti-collision action of the next core extraction and ejection, has no mechanical rigid collision, reduces the wear of parts, and prolongs the service life of the mechanism.

[0013] Preferably, the mold further comprises a forming block, the forming block is detachably connected to the inclined guide block, a limiting channel is formed in the inclined guide block, the side extraction inclined guide block slides along the inner wall of the limiting channel, when the forming block is mounted on the inclined guide block, the forming block closes the limiting channel, the forming block is provided with a sliding groove, and the side extraction block is slidably connected in the sliding groove.

[0014] By adopting the technical scheme, the double guidance of the limiting channel constraining the side pulling inclined guide block and the sliding groove constraining the side pulling block ensures that the side pulling track is accurately matched with the inner recess profile, and residual contact after core pulling is completely avoided; the channel is closed by the forming block to prevent plastic from penetrating and ensure the stability of the mechanism; the modular design simplifies assembly and maintenance and reduces costs. The core function is to provide accurate, stable and durable basic support for the side pulling mechanism, directly serving the non-collision and high-efficiency demolding needs of the inner recess structure of the motorboat cover part.

[0015] Preferably, a sleeve is mounted on the inclined ejector block, the inclined guide rod is coaxial and slidingly connected in the sleeve, an abutting rod is arranged on the inclined guide rod, the abutting rod penetrates the bottom surface of the sleeve and is slidingly connected to the side pulling inclined guide block, and when the side pulling block moves to the limit position towards the inclined ejector block, the inclined guide rod abuts against the bottom surface of the sleeve.

[0016] By adopting the technical scheme, the rigid limiting control of the side pulling limit position is achieved, and when the inclined guide rod moves to abut against the bottom surface of the sleeve, the continued movement of the inclined guide rod ejects the ejector rod.

[0017] Preferably, the side pulling block comprises a sliding part, a forming part and a bolt part, the sliding part is provided with a slot which is insertedly connected with the forming part, when the forming part is insertedly connected with the slot, the bolt part can penetrate the sliding part into the slot and is threadedly connected with the forming part.

[0018] By adopting the technical scheme, the detachable design allows the forming part to be replaced individually, ensuring that it always accurately fits the inner recess structure and completely separates from the inner recess during core pulling, thereby avoiding collision risks caused by insufficient precision of the forming part from the source.

[0019] Preferably, the first inclined surface is provided with an inclined sliding rail, the second inclined surface is provided with an inclined sliding groove matched with the inclined sliding rail, and the inclined sliding rail is slidingly embedded in the inclined sliding groove.

[0020] By adopting the technical scheme, the embedded structure of the inclined sliding rail and the inclined sliding groove forms a concave-convex matching rigid constraint, which forces the side pulling inclined guide block and the side pulling block to accurately slide in the preset direction along the inclined surface, avoiding movement deviation.

[0021] The technical effects of the present application mainly reflect in the following aspects: 1. The acceleration and ejection structure of the present application converts the conventional ejection movement of the ejector pin plate into the oblique and axial composite acceleration movement of the acceleration inclined rod through the oblique surface transmission design of the acceleration inclined rod, the acceleration inclined guide block and the acceleration ejector rod, so that the plastic part obtains a higher separation speed than the conventional ejection speed in the initial demolding stage, and a safe distance is opened with the inclined ejector rod in advance, reducing the possibility of scratching or collision with the upper inner recess structure during the subsequent oblique movement of the inclined ejector rod; 2. The "molding and fitting constraint" of the present application for the concave structure and the inclined top, that is, the direct ejection will be stuck in the inclined top; when the ejection action starts, the structure is through the side extraction block and the side extraction inclined guide block, when the ejection action starts, the inclined guide rod pushes the side extraction inclined guide block, and the side extraction block is driven to the inside of the inclined top block through the inclined guide rail, and the side extraction block is withdrawn in advance, thereby eliminating the risk of collision between the concave structure and the inclined top from the root. The side extraction and ejection are integrated, no additional power source is needed, the mold structure is simplified, and the demolding requirement of complex concave structure is met at the same time; 3. The sliding plate associated with the inclined guide rod and the ejector plate of the present application realize the step of "ejection after side extraction is completed", when the sliding plate abuts against the ejector plate, the side extraction block is just extracted to the limit position, and the ejector plate can continue to eject, thereby reducing the possibility of collision caused by action misplacement, and the side extraction is driven by the power of the ejector plate, without additional mechanism, thereby simplifying the mold layout. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic diagram of the embodiment of the present application.

[0023] Figure 2 It is a movable die structure schematic diagram of the embodiment of the present application.

[0024] Figure 3 It is a core plate structure schematic diagram of the embodiment of the present application.

[0025] Figure 4 It is an inclined top block structure schematic diagram of the embodiment of the present application.

[0026] Figure 5 It is an ejector plate structure schematic diagram of the embodiment of the present application.

[0027] Figure 6 It is an accelerated ejection structure schematic diagram of the embodiment of the present application.

[0028] Figure 7 It is a mold closed state structure schematic diagram of the accelerated ejection structure of the embodiment of the present application.

[0029] Figure 8 It is a structure schematic diagram of the accelerated ejection structure when the mold is opened.

[0030] Figure 9 It is a side extraction inclined guide block structure schematic diagram of the embodiment of the present application.

[0031] Figure 10 It is a structure schematic diagram of the accelerated side extraction structure on the core plate of the embodiment of the present application.

[0032] Figure 11 It is an enlarged view along Figure 10 A of the figure.

[0033] Figure 12is a structure schematic diagram of the accelerating side pulling structure of the embodiment of the present application in the mold closing state.

[0034] Figure 13 is a structure schematic diagram of the accelerating side pulling structure of the embodiment of the present application in the mold opening state.

[0035] Figure 14 is a structure schematic diagram of the fixed mold of the embodiment of the present application.

[0036] Figure 15 is a structure schematic diagram of the product of the embodiment of the present application.

[0037] Mark explanation: 1, moving mold; 2, fixed mold; 3, core plate; 4, bottom plate; 5, inclined ejector block; 6, ejector plate; 7, inclined rod; 8, sliding seat; 9, inclined guide rail; 10, accelerating ejection structure; 11, accelerating ejector rod; 12, accelerating inclined rod; 13, accelerating inclined guide block; 14, spring; 15, inclined guide surface; 16, forming block; 17, sliding groove; 18, limiting channel; 19, accelerating side pulling structure; 20, side pulling block; 21, side pulling inclined guide block; 22, inclined guide rod; 23, first inclined surface; 24, second inclined surface; 25, sliding plate; 26, sleeve; 27, abutting rod; 28, sliding part; 29, forming part; 30, bolt part; 32, adsorption block; 33, inclined sliding rail; 34, inclined sliding groove; 35, outer concave structure; 36, inner concave structure. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying Figures 1-15 The present application is further described in detail to make the technical scheme of the present application easier to understand and master.

[0039] The embodiment of the present application discloses a motorboat plastic cover injection molding mold and its accelerating ejection structure.

[0040] Referring to Figure 1 , Figure 2 and Figure 3 , the motorboat plastic cover injection molding mold and its accelerating ejection structure of the embodiment include a moving mold 1 and a fixed mold 2, the moving mold 1 includes a core plate 3 and a bottom plate 4, the core plate 3 is connected with an inclined ejector block 5 slidingly along the mold opening direction, the core plate 3 and the bottom plate 4 are connected with an ejector plate 6 slidingly along the mold opening direction, the inclined ejector block 5 and the ejector plate 6 are connected through a plurality of inclined rods 7, one end of the plurality of inclined rods 7 is provided in the core plate 3 along the sliding direction of the inclined ejector block 5 and is fixedly connected to the inclined ejector block 5, the ejector plate 6 is provided with a plurality of sliding seats 8, the plurality of sliding seats 8 are provided with inclined guide rails 9, the other end of the plurality of inclined rods 7 is slidingly connected to the inclined guide rails 9, and when in the mold closing state, the end of the inclined rod 7 is located on the side of the inclined guide rail 9 relatively far away from the bottom plate 4.

[0041] Referring to Figure 4 ,Figure 5 and Figure 6 Further comprising an acceleration ejection structure 10, the acceleration ejection structure 10 comprises an acceleration ejector rod 11, an acceleration inclined rod 12 and an acceleration inclined guide block 13, the acceleration inclined guide block 13 is slidingly connected to the ejector plate 6 along the opening direction of the mold perpendicular to the mold, and the acceleration inclined guide block 13 is provided with a spring 14, one end of the spring 14 abuts against the acceleration inclined guide block 13, and the other end abuts against a cooperating block cooperating with the ejector plate 6, the spring 14 always drives the acceleration inclined guide block 13 to move towards the final position after the mold is opened, the acceleration inclined guide block 13 is provided with an inclined guide surface 15, the acceleration inclined rod 12 is fixedly connected to the movable mold 1, and the acceleration inclined rod 12 penetrates through the acceleration inclined guide block 13 along the opening direction of the mold, one end of the acceleration ejector rod 11 penetrates through and is slidingly connected to the movable mold 1 along the opening direction of the mold, and the other end is slidingly connected to the inclined guide surface 15 of the acceleration inclined guide block 13 along the opening direction of the mold, and in the closed mold state, the end of the acceleration ejector rod 11 is located on the side of the inclined guide surface 15 of the acceleration inclined guide block 13 relatively close to the bottom plate 4.

[0042] Referring to Figure 7 , Figure 8 and Figure 9 Since the acceleration inclined rod 12 is fixed to the movable mold 1 and does not move with the ejector plate 6, when the ejector plate 6 moves, the inclined hole of the acceleration inclined guide block 13 will forcibly slide along the inclined surface of the acceleration inclined rod 12, causing the acceleration inclined guide block 13 to produce a lateral displacement perpendicular to the opening direction of the mold. Thus, the end of the acceleration ejector rod 11 moves towards the side of the inclined guide surface 15 relatively away from the bottom plate 4, which is converted into the combined movement of the acceleration ejector rod 11 on one side of the core plate 3 along the opening direction of the mold, that is, the acceleration ejector rod 11 not only makes the conventional ejection movement with the ejector plate 6, but also obtains additional acceleration thrust due to the inclined surface transmission, and finally realizes the combined acceleration ejection of the conventional ejection speed and the inclined surface amplification speed.

[0043] Referring to Figure 7 and Figure 8 The acceleration ejection structure 10 converts the conventional ejection movement of the ejector plate 6 into the inclined and axial combined acceleration movement of the acceleration ejector rod 11 through the inclined surface transmission design of the acceleration inclined rod 12, the acceleration inclined guide block 13 and the acceleration ejector rod 11, so that the plastic part obtains a higher separation speed than the conventional ejection speed in the initial demolding stage, and the safe distance from the inclined ejector is opened in advance, reducing the possibility of scratching or collision between the inclined ejector and the upper inner concave structure 36 during the subsequent inclined movement of the inclined ejector.

[0044] Referring to Figure 10 and Figure 11 Further comprising a forming block 16, the forming block 16 is detachably connected to the inclined ejector block 5 by bolts, and the forming block 16 is provided with a sliding groove 17, and the inclined ejector block 5 is provided with a limiting channel 18, when the forming block 16 is installed on the inclined ejector block 5, the inclined ejector block 5 closes the limiting channel 18.

[0045] Referring toFigure 11 and Figure 13 Further comprising an acceleration side-pulling structure 19, the acceleration side-pulling structure 19 comprises a side-pulling block 20, a side-pulling inclined guide block 21 and an inclined guide rod 22, the side-pulling block 20 is used for forming the outer concave structure 35 of the inner wall of the product, the side-pulling block 20 is slidingly connected to the inclined ejector block 5 along the axis direction of the outer concave structure 35 of the plastic part, and is provided with a first inclined surface 23, the side-pulling block 20 is fixedly connected with an inclined guide rail which can cooperate with the sliding groove 17, the inclined guide rail is slidingly connected in the sliding groove 17, the side-pulling inclined guide block 21 slides along the inner wall of the limiting channel 18, and is provided with a second inclined surface 24 which abuts against the first inclined surface 23. The ejector plate 6 is further slidingly connected with a sliding plate 25 along the sliding direction of the ejector plate 6, the sliding plate 25 is located between the ejector plate 6 and the bottom plate 4, one end of the inclined guide rod 22 penetrates the ejector plate 6 and is slidingly connected to the sliding plate 25 in a direction perpendicular to the mold opening direction, and the other end of the inclined guide rod 22 penetrates the core plate 3 and is slidingly connected to the side-pulling inclined guide block 21.

[0046] With reference to Figure 13 During the mold opening process, the top roller of the injection molding machine first pushes the sliding plate 25 to slide independently along the surface of the ejector plate 6 towards one side of the ejector plate 6, and the ejector plate 6 is stationary at this time. The sliding plate 25 pushes the side-pulling inclined guide block 21 to slide along the limiting channel 18 of the inclined ejector block 5 through the inclined guide rod 22. When the side-pulling inclined guide block 21 slides, the second inclined surface 24 presses the first inclined surface 23 of the side-pulling block 20, converting the force into the axial movement of the side-pulling block 20; the side-pulling block 20 is guided by the sliding groove 17 and shrinks towards the inside of the inclined ejector block 5, and the forming part 29 gradually separates from the outer concave structure 35 of the product.

[0047] With reference to Figure 10 For the "forming and fitting constraint" of the inner concave structure 36 and the inclined ejector, i.e. direct ejection will be stuck by the inner concave structure 36; when the ejection action starts, the structure pushes the side-pulling block 20 and the side-pulling inclined guide block 21 through the inclined guide rod 22, and drives the side-pulling block 20 to shrink towards the inside of the inclined ejector block 5 through the inclined guide rail, thereby avoiding the collision between the inner concave structure 36 and the inclined ejector. The integration of side-pulling and ejection eliminates the need for additional power source, simplifies the mold structure, and meets the demolding needs of complex inner concave structures.

[0048] With reference to Figure 11 The forming block 16 closes the limiting channel 18, and the side-pulling block 20 is slidingly connected in the sliding groove 17. The double guidance of the side-pulling inclined guide block 21 by the limiting channel 18 and the side-pulling block 20 by the sliding groove 17 ensures that the side-pulling trajectory accurately matches the inner concave contour, completely avoiding residual contact after core pulling; the channel is closed by the forming block 16 to prevent plastic from seeping into the mechanism to ensure its stability; the modular design simplifies assembly and maintenance, and reduces costs. The core function of the structure is to provide accurate, stable and durable foundation support for the side-pulling mechanism, directly serving the demolding needs of the high-efficiency and non-collision of the inner concave structure 36 of the motorboat cover part.

[0049] Referring to Figure 13 Further comprising a sleeve 26 mounted on the inclined block 5 by screws, the inclined guide rod 22 is coaxially and slidingly connected in the sleeve 26, and the end of the inclined guide rod 22 away from the sliding plate 25 is fixedly connected with an abutting rod 27, the diameter of the abutting rod 27 is smaller than that of the inclined guide rod 22, the abutting rod 27 penetrates the bottom surface of the sleeve 26 and is slidingly connected with the side pulling inclined block 21, when the side pulling block 20 moves to the limit position in the inclined block 5, the inclined guide rod 22 abuts against the bottom surface of the sleeve 26. The rigid limiting controls the side pulling limit position, and when the inclined guide rod 22 moves to abut against the bottom surface of the sleeve 26, the continued movement of the inclined guide rod 22 ejects the ejector rod.

[0050] Referring to Figure 11 The side pulling block 20 comprises a sliding part 28, a shaped part 29 and a bolt part 30, the sliding part 28 is provided with a slot 31 which can be inserted and matched with the shaped part 29, when the shaped part 29 is inserted and matched with the slot 31, the bolt part 30 can penetrate the sliding part 28 into the slot 31 and be threadedly connected with the shaped part 29. The detachable design allows the shaped part 29 to be replaced alone, ensuring that it always accurately fits the inner recess structure 36 and can completely separate from the inner recess during the core pulling, thereby avoiding the collision risk caused by the insufficient precision of the shaped part 29 from the source.

[0051] Referring to Figure 10 When the sliding plate 25 slides to abut against the ejector plate 6, the side pulling block 20 slides to the limit position in the inclined block, and when replacing, the sliding part 28 only needs to be threadedly disassembled and assembled with the old and new shaped parts 29, thereby greatly shortening the mold downtime and improving the production efficiency. The sliding plate 25 is associated with the inclined guide rod 22 and the ejector plate 6, and the step of "ejecting after side pulling is completed" is realized, when the sliding plate 25 abuts against the ejector plate 6, the side pulling block 20 is just pulled to the limit position, and the ejector plate 6 can continue to be ejected, thereby reducing the possibility of collision caused by action misplacement, using the ejector plate 6 to drive the side pulling without additional mechanism, and simplifying the mold layout.

[0052] Referring to Figure 15 The sliding plate 25 is embedded with a magnetic block, and the bottom plate 4 of the movable die 1 is fixedly connected with an adsorption block 32 which can be magnetically matched with the magnetic block, when the ejector plate 6 is closed and reset, the adsorption block 32 drives the magnetic block to move the sliding plate 25 to the side away from the ejector plate 6 to reset. Through the cooperation of the magnetic block and the adsorption block 32, the sliding plate 25 is automatically driven to reset the side pulling block 20, the magnetic reset ensures that the side pulling block 20 accurately returns to the initial forming position, guarantees the forming precision of the inner recess structure 36, and provides a basis for the anti-collision action of the next core pulling and then ejecting, and there is no mechanical rigid collision, thereby reducing the wear of parts and prolonging the service life of the mechanism.

[0053] Referring to Figure 11The second inclined surface 24 is fixedly connected with an inclined slide rail 33, and the first inclined surface 23 is provided with an inclined slide groove 34 matched with the inclined slide rail 33, and the inclined slide rail 33 is slidingly embedded in the inclined slide groove 34. The embedded structure of the inclined slide rail 33 and the inclined slide groove 34 forms a concave-convex matching rigidity constraint, so that the side extraction inclined guide block 21 and the side extraction block 20 can only slide in the preset direction relative to the inclined surface, and the possibility of movement deviation is reduced.

[0054] With reference to Figure 3 and Figure 4 In summary, the mold opening and closing processes are as follows: The mold opening process is as follows: the mold is started to open, the fixed mold 2 is separated from the movable mold 1 along the opening direction, and the plastic part is preliminarily attached to the movable mold 1 and the inclined ejector block 5. The top roller of the injection molding machine first pushes the sliding plate 25, so that the inclined guide rod 22 pushes the side extraction inclined guide block 21, the side extraction block 20 is driven to shrink into the inclined ejector block 5 through the inclined guide rail, and is completely separated from the upper side concave structure 36 of the plastic part. The acceleration ejector structure 10 is driven by the inclined surface to make the acceleration ejector rod 11 push the plastic part with a compound acceleration motion, so that the distance between the plastic part and the inclined ejector block 5 is pulled apart in advance to avoid collision. The ejector pin plate 6 continues to move, driving the inclined ejector block 5 to be obliquely ejected, cooperating with the acceleration ejector rod 11 to completely push the plastic part out of the movable mold 1, and completing the demolding; The mold closing process is as follows: the fixed mold 2 is started to close, and moves towards the movable mold 1. The ejector pin plate 6 is reset along the closing direction synchronously, driving the inclined ejector block 5, the acceleration ejector rod 11 and the like to reset. When the ejector pin plate 6 is reset, the suction block 32 drives the sliding plate 25 away from the ejector pin plate 6 through the magnetic suction block, the sliding plate 25 drives the inclined guide rod 22 to pull the side extraction inclined guide block 21 to reset, and then drives the side extraction block 20 to extend outward to the forming position. The fixed mold 2 and the movable mold 1 are completely attached, forming a closed injection mold 2, and preparing for the next injection molding.

[0055] With reference to Figure 3 and Figure 4 The mold is designed in cooperation of “first side extraction separation and then acceleration ejection” to reduce the possibility of mutual interference and collision during demolding: during mold opening, the sliding plate 25 first drives the side extraction block 20 to accurately shrink and separate from the concave part, and then drives the ejector pin plate 6 to start acceleration ejection, so that the plastic part quickly moves away from the inclined ejector. Multiple guide ensures the accuracy of the forming and demolding track, and the size tolerance is stable. The integrated power simplifies the structure, the modular design reduces the maintenance cost, improves the product quality and the batch production efficiency.

[0056] Of course, the above is only a typical example of the present application, in addition to which the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A plastic body panel injection mold for a motorboat and its accelerated ejection structure, comprising a moving mold (1) and a fixed mold (2), wherein an ejector plate (6) is slidably connected to the moving mold (1), and an inclined ejector block (5) is slidably connected to the moving mold (1), the inclined ejector block (5) and the ejector plate (6) are connected by a plurality of inclined rods (7), characterized in that: It also includes an acceleration ejection structure (10), which includes an acceleration ejector rod (11), an acceleration inclined rod (12), and an acceleration inclined guide block (13). The acceleration inclined guide block (13) is slidably connected to the ejector plate (6) perpendicular to the mold opening direction. The acceleration inclined rod (12) is fixedly connected to the moving mold (1), and the inclined rod (7) passes through and is slidably connected to the acceleration inclined guide block (13) along the mold opening direction inclined to the mold. One end of the acceleration ejector rod (11) passes through and is slidably connected to the moving mold (1) along the mold opening direction, and the other end is slidably connected to the acceleration inclined guide block (13) along the mold opening direction inclined to the mold.

2. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 1, characterized in that: It also includes an accelerating side-pulling structure (19), which includes a side-pulling block (20), a side-pulling inclined guide block (21), and an inclined guide rod (22). The side-pulling block (20) is used to form the concave structure (35) of the inner wall of the product. The side-pulling block (20) is slidably connected to the inclined top block (5) in the horizontal direction and has a first inclined surface (23). The side-pulling inclined guide block (21) is slidably connected inside the inclined top block (5) and has a second inclined surface (24) that abuts against the first inclined surface (23). One end of the inclined guide rod (22) is slidably connected to the side-pulling inclined guide block (21), and the other end of the inclined guide rod (22) is installed on the ejector plate (6).

3. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 2, characterized in that: The ejector plate (6) is also slidably connected to a sliding plate (25). The inclined guide rod (22) passes through the ejector plate (6) and is slidably connected to the sliding plate (25) in a direction perpendicular to the mold opening direction. When the sliding plate (25) slides to abut against the ejector plate (6), the side pull block (20) slides into the inclined ejector block (5) to the limit position.

4. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 3, characterized in that: The sliding plate (25) is provided with a magnetic block, and the moving mold (1) is provided with an adsorption block (32) that can magnetically engage with the magnetic block. When the ejector plate (6) is closed and reset, the adsorption block (32) drives the magnetic block to move the sliding plate (25) away from the ejector plate (6) until it is reset.

5. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 2, characterized in that: It also includes a molding block (16), which is detachably connected to the inclined top block (5). A limiting channel (18) is opened in the inclined top block (5). The side-pull inclined guide block (21) slides along the inner wall of the limiting channel (18). When the molding block (16) is installed on the inclined top block (5), the molding block (16) closes the limiting channel (18). The molding block (16) is provided with a sliding groove (17). The side-pull block (20) is slidably connected in the sliding groove (17).

6. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 2, characterized in that: It also includes a sleeve (26), which is installed on the inclined top block (5). The inclined guide rod (22) is coaxial and slidably connected inside the sleeve (26). The inclined guide rod (22) is provided with an abutment rod (27). The abutment rod (27) passes through the bottom surface of the sleeve (26) and is slidably connected to the side-pull inclined guide block (21). When the side-pull block (20) moves into the inclined top block (5) to the limit position, the inclined guide rod (22) abuts against the bottom surface of the sleeve (26).

7. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 2, characterized in that: The side draw block (20) includes a sliding part (28), a forming part (29) and a bolt part (30). The sliding part (28) has a slot (31) that can be inserted and engaged with the forming part (29). When the forming part (29) is inserted and engaged with the slot (31), the bolt part (30) can pass through the sliding part (28) into the slot (31) and be threadedly connected to the forming part (29).

8. The injection molding die for a motorboat plastic cover and its accelerated ejection structure according to claim 2, characterized in that: The first inclined surface (23) is provided with an inclined slide rail (33), and the second inclined surface (24) is provided with an inclined slide groove (34) adapted to the inclined slide rail (33), and the inclined slide rail (33) is slidably embedded in the inclined slide groove (34).

Images