Intra-mold hydraulic driving mechanism of injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses an in-mold hydraulic driving mechanism of an injection mold, which comprises a first mounting rack, the upper surface of the first mounting rack is fixedly connected with a second mounting rack, and the surface of the second mounting rack is rotatably connected with a screw rod. Through rotation of the lead screw, the movable plate can position the hydraulic mechanism to a proper height through the lower pressing rod under the guidance of the guide rod, the guidance of the mechanical structure provides an accurate initial position for subsequent injection molding operation of the hydraulic mechanism, the dimensional precision of an injection molding product is improved, and the production efficiency is improved. The time for adjusting the hydraulic mechanism to the working position is shortened, compared with the mode that the position is adjusted only through the hydraulic mechanism, the speed of the injection mold entering the working state and the overall injection molding production efficiency are improved, and meanwhile the problems that a hydraulic cylinder with the too long stroke is used, and the cost is high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field especially relates to a kind of in-mold hydraulic drive mechanism of injection mold. BACKGROUND

[0002] In the technical field of injection mold, the driving mechanism of injection mold has a crucial influence on the quality and production efficiency of injection product.

[0003] In the traditional injection mold, only rely on hydraulic mechanism to adjust the working position of mold, for example, the hydraulic cylinder in some injection mold is directly used to drive template to carry out clamping, injection and other operations, this mode has a obvious shortcoming, that is, hydraulic cylinder needs larger stroke to meet different injection needs, since the stroke of hydraulic cylinder is proportional to price, the hydraulic cylinder with too long stroke will lead to cost greatly increase, which undoubtedly increases the manufacturing cost of injection mold, and it is a not small expenditure for enterprise. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a kind of in-mold hydraulic drive mechanism of injection mold.

[0005] The utility model adopts following technical scheme realization: a kind of in-mold hydraulic drive mechanism of injection mold, including first mounting bracket, the upper surface of the first mounting bracket is fixedly connected with second mounting bracket, the surface of the second mounting bracket is rotatably connected with screw rod, the outer surface of the screw rod is threadedly connected with movable plate, the both sides of the movable plate are all penetrated with guide rod, the lower surface of the movable plate is fixedly connected with down rod, the bottom of the down rod is provided with hydraulic mechanism.

[0006] Through the above technical scheme, it avoids using hydraulic cylinder with too long stroke, because if using hydraulic cylinder with too long stroke, it will lead to higher cost, the device adjusts the position of hydraulic mechanism by screw rod, so it does not need hydraulic cylinder with too long stroke, thereby reducing cost.

[0007] As further improvement of the above scheme, the hydraulic mechanism includes mounting sleeve, the mounting sleeve is fixedly connected to the bottom of down rod, the inside of the mounting sleeve is fixedly connected with hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with piston rod, the bottom of the piston rod is fixedly connected with upper die plate, the upper surface of the upper die plate is fixedly connected with several injection tubes.

[0008] Through the above technical scheme, the components such as hydraulic cylinder are integrated in mounting sleeve, and the whole in-mold hydraulic drive mechanism is connected by down rod, so that the linkage of each component during injection is better, which is beneficial to improve the precision and efficiency of injection.

[0009] As a further improvement of the above-mentioned scheme, the surface of the first mounting frame is fixedly connected with a bottom plate, and the surface of the bottom plate is provided with a lower mold cavity.

[0010] Through the above technical scheme, the lower mold cavity provides a suitable space for injection molding, which is beneficial to the forming quality of the injection product.

[0011] As a further improvement of the above-mentioned scheme, the lower mold cavity is matched with the upper mold plate.

[0012] Through the above technical scheme, the sealing property of the injection mold is ensured, the leakage of the injection material is prevented, the quality of the injection product is improved, and the matched design is beneficial to improve the efficiency of the injection production and reduce the defective products caused by the mismatch of the mold.

[0013] As a further improvement of the above-mentioned scheme, the upper surface of the second mounting frame is fixedly connected with a protective shell, and the inside of the protective shell is provided with a servo motor.

[0014] Through the above technical scheme, the protective shell can prevent the interference and damage of external factors such as dust, sundries and the like to the servo motor, ensure the normal operation of the servo motor, and thus ensure the normal work of the in-mold hydraulic drive mechanism of the entire injection mold.

[0015] As a further improvement of the above-mentioned scheme, the output end of the servo motor is fixedly connected with a main bevel gear, and the outer surface of the main bevel gear is meshingly connected with a secondary bevel gear.

[0016] As a further improvement of the above-mentioned scheme, the secondary bevel gear is fixedly connected to the outer surface of the lead screw.

[0017] Compared with the prior art, the beneficial effects of the utility model lie in:

[0018] The utility model discloses a hydraulic mechanism and lead screw transmission structure are combined, realize accurate control to injection process, through the rotation of lead screw, movable plate can be positioned to suitable height through the down pressure rod under the guidance of guide rod, and the guidance of this mechanical structure provides accurate starting position for the subsequent injection operation of hydraulic mechanism, helps to improve the dimensional accuracy of injection product, reduces the time of hydraulic mechanism adjustment to the working position, compared with the way of relying on the slow adjustment position of hydraulic mechanism itself, improves the speed of injection mold into the working state and the overall injection production efficiency, also avoids the problem of high cost of using the hydraulic cylinder with too long stroke. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model;

[0020] Figure 2 It is the structure schematic view of the down pressure rod of the utility model;

[0021] Figure 3 It is the structural schematic view of main bevel gear of the utility model;

[0022] Figure 4 It is the structural schematic view of hydraulic mechanism of the utility model;

[0023] Main symbol explanation:

[0024] 1, first mounting bracket;2, second mounting bracket;3, screw;4, movable plate;5, guide rod;6, down bar;7, hydraulic mechanism;701, mounting sleeve;702, hydraulic cylinder;703, piston rod;704, upper mold plate;705, injection tube;8, bottom plate;9, lower mold cavity;10, protective shell;11, servo motor;12, main bevel gear;13, sub bevel gear. Specific implementation

[0025] Below, combining with the specific implementation of the drawings, the utility model is described further, it is explained that under the premise of not conflicting, the following description of each embodiment or each technical feature between can be arbitrarily combined to form new embodiment.

[0026] Embodiment:

[0027] Please combine Figures 1-4 The in-mold hydraulic drive mechanism of the injection mold of the embodiment, including first mounting bracket 1, the upper surface of first mounting bracket 1 is fixedly connected with second mounting bracket 2, the surface of second mounting bracket 2 is rotatably connected with screw 3, the outer surface of screw 3 is threadedly connected with movable plate 4, both sides of movable plate 4 are penetrated with guide rod 5, the lower surface of movable plate 4 is fixedly connected with down bar 6, the bottom end of down bar 6 is provided with hydraulic mechanism 7, when screw 3 rotates, because movable plate 4 is threadedly connected with screw 3, and both sides of movable plate 4 are penetrated with guide rod 5, guide rod 5 plays a guiding role to movable plate 4, so that movable plate 4 can only move up and down along the direction of guide rod 5.The lifting of movable plate 4 is transmitted to hydraulic mechanism 7 through down bar 6, so as to drive hydraulic mechanism 7 to lift, so that hydraulic mechanism 7 can be moved to the appropriate position to carry out subsequent injection mold work, in this process, personnel can first drive hydraulic mechanism 7 to descend to a certain position through screw 3, and then drive the hydraulic cylinder 702 and other components in hydraulic mechanism 7 to complete the injection work.

[0028] The hydraulic mechanism 7 comprises a mounting sleeve 701 fixedly connected to the bottom end of the pressing rod 6, the inside of the mounting sleeve 701 is fixedly connected with a hydraulic cylinder 702, the output end of the hydraulic cylinder 702 is fixedly connected with a piston rod 703, the bottom end of the piston rod 703 is fixedly connected with an upper mold plate 704, the upper surface of the upper mold plate 704 is fixedly connected with a plurality of injection pipes 705, when the hydraulic mechanism 7 is driven by the pressing rod 6 to descend to the appropriate position, the hydraulic cylinder 702 in the mounting sleeve 701 starts to work, the piston rod 703 at the output end of the hydraulic cylinder 702 will perform the extension and retraction movement, since the bottom end of the piston rod 703 is fixedly connected with the upper mold plate 704, the extension and retraction of the piston rod 703 will drive the upper mold plate 704 to perform the corresponding up and down movement, the plurality of injection pipes 705 fixedly connected to the upper surface of the upper mold plate 704 will reach the appropriate position for the injection operation along with the movement of the upper mold plate 704.

[0029] The surface of the first mounting frame 1 is fixedly connected with a bottom plate 8, the surface of the bottom plate 8 is provided with a lower mold cavity 9, which cooperates with the subsequent upper mold plate 704 to complete the injection molding work.

[0030] The lower mold cavity 9 is matched with the upper mold plate 704, when the upper mold plate 704 in the hydraulic mechanism 7 is driven by the piston rod 703 to move up and down, the upper mold plate 704 can accurately cooperate with the lower mold cavity 9. During the injection process, the upper mold plate 704 descends to the position closely combined with the lower mold cavity 9, and the injection material is injected from the injection pipe 705 into the space formed by the upper mold plate 704 and the lower mold cavity 9 to complete the injection.

[0031] The upper surface of the second mounting frame 2 is fixedly connected with a protective shell 10, the inside of the protective shell 10 is provided with a servo motor 11, the protective shell 10 fixedly connected to the upper surface of the second mounting frame 2 plays a role in protecting the internal servo motor 11. The servo motor 11 serves as the power source for the rotation of the lead screw 3, stably operates in the protective shell 10, drives the vice bevel gear 13 to rotate through the main bevel gear 12 at the output end, and then drives the lead screw 3 to rotate.

[0032] The output end of the servo motor 11 is fixedly connected with the main bevel gear 12, the outer surface of the main bevel gear 12 is meshingly connected with the vice bevel gear 13.

[0033] The vice bevel gear 13 is fixedly connected to the outer surface of the lead screw 3.

[0034] The implementation principle of the in-mold hydraulic drive mechanism of the injection mold in the embodiment of the application is as follows: an operator starts the servo motor 11 in the protective shell 10. Since the output end of the servo motor 11 is fixedly connected with the main bevel gear 12, the main bevel gear 12 is in meshing connection with the auxiliary bevel gear 13, and the auxiliary bevel gear 13 is fixedly connected to the outer surface of the lead screw 3, so the servo motor 11 will drive the lead screw 3 to rotate after being started. When the lead screw 3 rotates, since the movable plate 4 is in threaded connection with the lead screw 3, and the two sides of the movable plate 4 are penetrated by the guide rods 5, the guide rods 5 limit the movable plate 4 to only move up and down along the direction of the guide rods 5. At this time, the movable plate 4 will move downward along the guide rods 5 under the rotation of the lead screw 3. The lower surface of the movable plate 4 is fixedly connected with the pressing rod 6, and the bottom end of the pressing rod 6 is connected with the hydraulic mechanism 7, so the descent of the movable plate 4 will drive the hydraulic mechanism 7 to descend through the pressing rod 6. The operator continuously observes the descending position of the hydraulic mechanism 7 until the hydraulic mechanism 7 descends to the appropriate pre-set position. The output end of the hydraulic cylinder 702 is fixedly connected with the piston rod 703, so the piston rod 703 will move up and down after the hydraulic cylinder 702 is started. Since the bottom end of the piston rod 703 is fixedly connected with the upper mold plate 704, the extension and retraction of the piston rod 703 will drive the upper mold plate 704 to descend. When the upper mold plate 704 descends to the position closely combined with the lower mold cavity 9, the operator pours the injection material from the injection pipe 705 into the space formed by the upper mold plate 704 and the lower mold cavity 9 through the injection equipment, and the injection operation is completed.

[0035] The above embodiment is only a preferred embodiment of the application, and cannot be used to limit the range of protection of the application. Any non-substantial change and replacement made by the person skilled in the art on the basis of the application belongs to the range of protection of the application.

Claims

1. An in-mold hydraulic drive mechanism for an injection mold, characterized by, The utility model provides a kind of injection molding machine, including first mounting bracket (1), the upper surface of first mounting bracket (1) is fixedly connected with second mounting bracket (2), the surface of second mounting bracket (2) is rotatably connected with screw rod (3), the outer surface of screw rod (3) is threadedly connected with movable plate (4), both sides of movable plate (4) are penetrated with guide rod (5), the lower surface of movable plate (4) is fixedly connected with down bar (6), the bottom of down bar (6) is provided with hydraulic mechanism (7).

2. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 1, characterized in that: The hydraulic mechanism (7) includes a mounting sleeve (701), which is fixedly connected to the bottom of the down bar (6). The inside of the mounting sleeve (701) is fixedly connected with a hydraulic cylinder (702). The output end of the hydraulic cylinder (702) is fixedly connected with a piston rod (703). The bottom of the piston rod (703) is fixedly connected with an upper mold plate (704). The upper surface of the upper mold plate (704) is fixedly connected with a plurality of injection tubes (705).

3. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 1, wherein: The surface of the first mounting bracket (1) is fixedly connected with a bottom plate (8). The surface of the bottom plate (8) is provided with a lower mold cavity (9).

4. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 3, wherein: The lower mold cavity (9) is matched with the upper mold plate (704).

5. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 1, wherein: The upper surface of the second mounting bracket (2) is fixedly connected with a protective shell (10). The inside of the protective shell (10) is provided with a servo motor (11).

6. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 5, wherein: The output end of the servo motor (11) is fixedly connected with a main bevel gear (12). The outer surface of the main bevel gear (12) is meshingly connected with a secondary bevel gear (13).

7. An in-mold hydraulic drive mechanism for an injection mold as defined in claim 6, wherein: The secondary bevel gear (13) is fixedly connected to the outer surface of the screw rod (3).

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