Efficient demolding mechanism of injection mold

Abstract

The utility model relates to the technical field of mold demolding, and discloses an efficient demolding mechanism of an injection mold, which comprises the injection mold, a demolding assembly is arranged in the injection mold, the demolding assembly is used for rapid demolding, the demolding assembly comprises a connecting frame, the connecting frame is connected in the injection mold in a sliding manner, and the connecting frame is connected with the injection mold. A connecting frame is fixedly connected to the outer wall of the sliding rail, a fixing frame is fixedly connected to one side of the connecting frame, an air cylinder is fixedly connected to the interior of the fixing frame, the output end of the air cylinder is fixedly connected with a slope block, the two sides of the connecting frame are each provided with a dismounting assembly, and the dismounting assemblies are used for rapidly mounting and dismounting the demolding assembly. Further, the pulley rolls on the inclined surface of the inclined surface block, and the transmission shaft and the demolding shaft are driven to synchronously move through rolling of the pulley, so that the effect of quickly ejecting a mold is achieved, the problem that a plastic part is deformed due to the fact that a traditional demolding mechanism cannot dynamically adjust demolding force is solved, and the demolding efficiency and the production qualification rate are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould stripping technical field especially relates to a high -efficient stripping mechanism of injection mold. BACKGROUND

[0002] In the injection molding field, the stripping process is the core link influencing production efficiency and plastic part quality, with the improvement of the precision and complexity requirements of plastic parts in the automobile, electronic, household appliance and other industries, the traditional stripping mode has been difficult to meet the efficient production demand, for example, deep cavity, thin wall plastic parts are easy to deform or break due to excessive package force when stripping, and complex structure plastic parts need multi-step stripping, which prolongs the production cycle, therefore, developing a kind of high -efficient stripping mechanism that can adapt to the diversified plastic part demand, shorten the stripping time and reduce the damage risk becomes the key problem to be solved in the mould design field.

[0003] The existing injection mold stripping mechanism mainly relies on the traditional ejector pin stripping, directly contacts the plastic part by the ejector rod and applies the thrust force, and its principle is based on the local contact transmission stripping force of the ejector pin and the plastic part, and the push plate stripping is uniformly applied to the bottom surface of the plastic part through the whole push plate, which reduces the ejector pin mark, and the core of these technologies is to overcome the friction and shrinkage package force of the plastic part and the mould cavity by mechanical force or basic power source, but it is difficult to meet the stripping demand under complex working conditions due to the limitation of power source precision and mechanism design.

[0004] However, the above-mentioned technology has key defects, the traditional stripping mechanism relies on fixed stroke or preset force value, cannot dynamically adjust the stripping action according to the package force difference of each part of the plastic part, leads to the extension of stripping time and the deformation or fracture of the plastic part due to local stress concentration, for example, in the stripping of deep cavity plastic part, the ejector pin needs to overcome the maximum package force at one time, which is easy to cause the fracture of the plastic part, and when the thin wall plastic part is stripped, if the push plate contacts the plastic part that has not completely solidified too early, the surface will be depressed, therefore, a kind of high -efficient stripping mechanism of injection mold is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of high -efficient stripping mechanism of injection mold, aims at improving the problems, such as the traditional stripping mechanism in prior art cannot dynamically adjust stripping force according to the package force difference of plastic part, leads to low stripping efficiency and the deformation or fracture of plastic part due to local stress concentration.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of high -efficient stripping mechanism of injection mold, including injection mold, the injection mold is internally provided with stripping assembly, the stripping assembly is used for fast stripping;

[0008] The demolding assembly comprises a connecting frame, the connecting frame is slidingly connected in the injection mold, one side of the connecting frame is fixedly connected with a fixing frame, the fixing frame is fixedly connected with a cylinder inside, the output end of the cylinder is fixedly connected with an inclined block, the connecting frame is fixedly connected with a sliding rail inside, the inclined block is slidingly connected to the outer wall of the sliding rail, the side wall of the inclined block is slidingly connected with a pulley, the outer wall of the pulley is rotatably connected with a transmission shaft, the top end of the transmission shaft is fixedly connected with a demolding shaft, the outer wall of the transmission shaft is provided with a spring one, one end of the spring one is fixedly connected to the outer wall of the transmission shaft, and the other end is fixedly connected to the inner wall of the connecting frame, and the connecting frame is provided with a disassembly assembly on both sides, and the disassembly assembly is used for quickly installing and disassembling the demolding assembly.

[0009] As a further description of the above technical scheme:

[0010] The disassembly assembly comprises a fixed plate one and a fixed plate two, the fixed plate one is fixedly connected inside the connecting frame, and the fixed plate two is fixedly connected inside the injection mold.

[0011] As a further description of the above technical scheme:

[0012] One side of the fixed plate two is fixedly connected with a connecting shaft, and the connecting shaft is slidingly connected with a transmission column inside.

[0013] As a further description of the above technical scheme:

[0014] The transmission column is fixedly connected with a transmission block inside, and the fixed plate one is provided with a limiting groove inside.

[0015] As a further description of the above technical scheme:

[0016] The other end of the transmission column is fixedly connected with a connecting column, and one end of the connecting column is fixedly connected with a tapered clamping block.

[0017] As a further description of the above technical scheme:

[0018] The tapered clamping block is matched with the limiting groove, and the outer wall of the transmission column is fixedly connected with an extrusion disc.

[0019] As a further description of the above technical scheme:

[0020] The outer wall of the extrusion disc is slidingly connected inside the connecting shaft, and the outer wall of the transmission column is provided with a spring two.

[0021] As a further description of the above technical scheme:

[0022] One end of the spring two is fixedly connected to one side of the extrusion disc, and the other end is fixedly connected to the inner wall of the connecting shaft.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the slope block is driven by the air cylinder to slide on the outer wall of the slide rail, so that the pulley further rolls on the slope of the slope block, the transmission shaft and the stripping shaft are synchronously moved by the rolling of the pulley, so that the effect of quickly ejecting the mold is realized, the problem that the traditional stripping mechanism cannot dynamically adjust the stripping force to cause the deformation of the plastic part is solved, and the stripping efficiency and the production qualification rate are improved.

[0025] 2. In the utility model, the transmission block is pulled to drive the transmission column to slide in the connecting shaft, so that the tapered clamping block is further separated from the limiting groove to realize unlocking, the stripping assembly can be directly lifted to realize the effect of quickly installing and disassembling the stripping assembly, the problem that the traditional stripping mechanism is complex to maintain and takes a long time to replace is solved, and the mold maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of the efficient stripping mechanism of the injection mold is provided for the utility model;

[0027] Figure 2 A structure schematic view of the injection mold inside the efficient stripping mechanism of the injection mold is provided for the utility model;

[0028] Figure 3 For Figure 2 An enlarged view of position A in the middle;

[0029] Figure 4 A structure schematic view of the connecting shaft section of the efficient stripping mechanism of the injection mold is provided for the utility model.

[0030] LEGEND:

[0031] 1, injection mold; 2, connecting frame; 3, fixed frame; 4, air cylinder; 5, slope block; 6, slide rail; 7, pulley; 8, transmission shaft; 9, stripping shaft; 10, spring one; 11, fixed plate one; 12, fixed plate two; 13, connecting shaft; 14, transmission column; 15, transmission block; 16, connecting column; 17, tapered clamping block; 18, limiting groove; 19, extrusion disc; 20, spring two. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Refer toFigure 1 Figure 3 The utility model provides an embodiment: a kind of high-efficiency demolding mechanism of injection mold, including injection mold 1, for the injection molding of workpiece, injection mold 1 inside is provided with demolding assembly, and demolding assembly is used to fast demolding;

[0034] Demolding assembly includes connecting frame 2, connecting frame 2 is slidably connected in the inside of injection mold 1, and one side of connecting frame 2 is fixedly connected with fixed frame 3, for providing stable connection and support, guaranteeing that cylinder 4 can be stably driven, and the inside of fixed frame 3 is fixedly connected with cylinder 4, for providing driving force, driving the stable movement of subsequent components, and the output end of cylinder 4 is fixedly connected with inclined surface block 5, the inside of connecting frame 2 is fixedly connected with slide rail 6, for guaranteeing that inclined surface block 5 can stably slide, provides stable sliding track for it, and inclined surface block 5 is slidably connected on the outer wall of slide rail 6, the side wall of inclined surface block 5 is slidably connected with pulley 7, the outer wall of pulley 7 is rotatably connected with transmission shaft 8, the top of transmission shaft 8 is fixedly connected with demolding shaft 9, for ejecting mold, realizes fast and efficient demolding, and the outer wall of transmission shaft 8 is provided with spring one 10, for providing elastic support force, guaranteeing the stable movement of demolding shaft 9 and transmission shaft 8, one end of spring one 10 is fixedly connected on the outer wall of transmission shaft 8, and the other end is fixedly connected on the inner wall of connecting frame 2, and both sides of connecting frame 2 are provided with dismounting assembly, and dismounting assembly is used to fast installation and dismounting demolding assembly.

[0035] Specifically, when the structure of plastic part is complex, the material shrinkage rate is high or the surface quality requirement is strict, the demolding assembly is needed to dynamically adjust the demolding force, to ensure efficient demolding and avoid damage to the plastic part. First, the output end of the cylinder 4 drives the reciprocating movement of the inclined surface block 5, and the movement trajectory of the inclined surface block 5 is stably guided by the slide rail 6. The outer wall of the slide rail 6 provides a stable movement path for the inclined surface block 5. With the reciprocating movement of the inclined surface block 5, the pulley 7 will slide along the inclined surface of the inclined surface block 5. When the inclined surface block 5 moves forward, the pulley 7 slides from the lower side to the higher side of the slide rail 6, driving the transmission shaft 8 and the demolding shaft 9 to move synchronously. The movement of the transmission shaft 8 further compresses the spring one 10, causing the spring one 10 to elastically deform. The elastic deformation of the spring one 10 ensures efficient and stable demolding.

[0036] Referring to Figure 4 The dismounting assembly includes a fixed plate one 11 and a fixed plate two 12. The fixed plate one 11 is fixedly connected inside the connecting frame 2, and the fixed plate two 12 is fixedly connected inside the injection mold 1, for providing a limiting effect and ensuring the stable movement of the dismounting assembly. One side of the fixed plate two 12 is fixedly connected with a connecting shaft 13, and the inside of the connecting shaft 13 is slidably connected with a transmission column 14, for transmitting power and ensuring the normal movement of the assembly. The inside of the transmission column 14 is fixedly connected with a transmission block 15, for facilitating the user to start the dismounting assembly and enabling the dismounting assembly to be quickly started. The inside of the fixed plate one 11 is provided with a limiting groove 18.​

[0037] Specifically, when it is necessary to maintain and replace the demolding assembly, shorten the maintenance period or deal with emergency repair, the operator can start the disassembly assembly by pulling the transmission block 15, the driving action of the transmission block 15 makes the transmission column 14 slide in the connecting shaft 13, thereby driving the connecting column 16 and the tapered block 17 to move synchronously, with the movement of the tapered block 17, it will be separated from the clamping position in the limiting groove 18, to achieve unlocking, after unlocking, the operator can directly pick up the demolding assembly for repair or replacement.

[0038] Referring to Figure 4 , the other end of the transmission column 14 is fixedly connected with the connecting column 16, one end of the connecting column 16 is fixedly connected with the tapered block 17, the tapered block 17 is matched with the limiting groove 18, through the cooperation of the tapered block 17 and the limiting groove 18, the quick unlocking and locking of the assembly can be realized, the outer wall of the transmission column 14 is fixedly connected with the extrusion disc 19, which is used to transmit power to extrude the spring 20, so that the spring 20 can be quickly extruded, the outer wall of the extrusion disc 19 slides in the connecting shaft 13, the outer wall of the transmission column 14 is provided with the spring 20, which is used to provide elastic restoring force to ensure that the assembly can be quickly reset after movement, one end of the spring 20 is fixedly connected on one side of the extrusion disc 19, and the other end is fixedly connected on the inner wall of the connecting shaft 13.

[0039] Specifically, in addition, the extrusion disc 19 will also move at the same time as the transmission column 14 moves, the extrusion disc 19 exerts pressure on the spring 20 through sliding, causing the spring 20 to elastically deform and store elastic potential energy, when reinstalling the demolding assembly, the restoring force of the spring 20 will push the tapered block 17 to re-enter the limiting groove 18, thereby completing the quick installation and disassembly process.

[0040] Working principle: in the use of the injection mold demoulding mechanism, through the injection mold 1 injection molding of workpiece, in the workpiece complete injection molding needs efficient demoulding, through the cylinder 4 output end drive bevel block 5 reciprocating motion, in the bevel block 5 movement will be in the slide rail 6 outer wall sliding, through the slide rail 6 for bevel block 5 provides stable movement path, in the bevel block 5 movement will drive pulley 7 along its inclined surface sliding, in bevel block 5 forward movement pulley 7 will be in the slide rail 6 lower side to the higher side, thereby driving transmission shaft 8 and demoulding shaft 9 synchronous movement, in transmission shaft 8 movement will extrude spring one 10, so that spring one 10 elastic deformation, thereby achieving efficient and stable demoulding, when the need to maintain demoulding assembly, through the operator pull transmission block 15, under the drive of transmission block 15 will make transmission column 14 in the connecting shaft 13 inside sliding, thereby driving connecting column 16 and tapered block 17 synchronous movement, in the tapered block 17 movement will be separated from the limit groove 18 inside the card, realize unlocking, after unlocking through the operator directly take up demoulding assembly can be, in transmission column 14 movement will further drive extrusion disc 19 movement, through the extrusion disc 19 sliding extrusion spring two 20, so that spring two 20 elastic deformation, store elastic potential energy, when installation rely on spring two 20 elastic restoring force to push tapered block 17 re-enter the limit groove 18 inside, thereby realizing the effect of quick installation and disassembly.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A high efficiency ejection mechanism of an injection mold comprising an injection mold (1), characterized in that: The injection mold (1) is internally provided with a demolding assembly, which is used for rapid demolding; The demolding assembly comprises a connecting frame (2) which is slidingly connected in the injection mold (1), one side of the connecting frame (2) is fixedly connected with a fixed frame (3), the fixed frame (3) is fixedly connected with a gas cylinder (4) in the inside, the output end of the gas cylinder (4) is fixedly connected with an inclined block (5), the inside of the connecting frame (2) is fixedly connected with a sliding rail (6), the inclined block (5) is slidingly connected to the outer wall of the sliding rail (6), the side wall of the inclined block (5) is slidingly connected with a pulley (7), the outer wall of the pulley (7) is rotatably connected with a transmission shaft (8), the top end of the transmission shaft (8) is fixedly connected with a demolding shaft (9), the outer wall of the transmission shaft (8) is provided with a spring (10), one end of the spring (10) is fixedly connected to the outer wall of the transmission shaft (8), and the other end is fixedly connected to the inner wall of the connecting frame (2), the connecting frame (2) is provided with a disassembly assembly on both sides, and the disassembly assembly is used for rapid installation and disassembly of the demolding assembly.

2. A high efficiency ejection mechanism for injection mold according to claim 1, characterized in that: The disassembly assembly comprises a fixed plate one (11) and a fixed plate two (12), the fixed plate one (11) is fixedly connected in the connecting frame (2), and the fixed plate two (12) is fixedly connected in the injection mold (1).

3. A high efficiency ejection mechanism for injection mold according to claim 2, characterized in that: One side of the fixed plate two (12) is fixedly connected with a connecting shaft (13), and the connecting shaft (13) is slidingly connected with a transmission column (14) in the inside.

4. A high efficiency ejection mechanism for injection molds according to claim 3, characterized in that: The inside of the transmission column (14) is fixedly connected with a transmission block (15), and the inside of the fixed plate one (11) is provided with a limiting groove (18).

5. A high efficiency ejection mechanism for injection molds according to claim 4, characterized in that: The other end of the transmission column (14) is fixedly connected with a connecting column (16), and one end of the connecting column (16) is fixedly connected with a tapered clamping block (17).

6. A high efficiency ejection mechanism for injection molds according to claim 5, characterized in that: The tapered clamping block (17) is matched with the limiting groove (18), and the outer wall of the transmission column (14) is fixedly connected with an extrusion disc (19).

7. A high efficiency ejection mechanism for injection molds according to claim 6, characterized in that: The outer wall of the extrusion disc (19) is slidingly connected in the connecting shaft (13), and the outer wall of the transmission column (14) is provided with a spring (20).

8. A high efficiency ejection mechanism for injection molds according to claim 7, characterized in that: One end of the spring (20) is fixedly connected to one side of the extrusion disc (19), and the other end is fixedly connected to the inner wall of the connecting shaft (13).

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