Lateral core-pulling mechanism with back locking function for injection mold

Abstract

The utility model discloses a lateral core-pulling mechanism with a back locking function for an injection mold, which relates to the field of injection molds, and comprises a slider body and a slider driving oil cylinder arranged at the upper end of the slider body, a cooling water pipe is arranged above the left side of the slider body, a locking block is arranged in the slider body, and the locking block is connected with the slider driving oil cylinder. A locking mechanism is arranged at the front end of the locking block and provided with a second oil pipe. According to the lateral core pulling mechanism with the back locking function for the injection mold, when the mold is closed, after a locking oil cylinder receives a locking signal of a stroke control assembly, a locking block is driven to slide into a sliding block body clamping groove to lock a sliding block body, and displacement of the sliding block body caused by injection molding pressure in the mold filling process is prevented; when mold filling is completed and mold opening is completed, the locking oil cylinder firstly receives a mold opening signal of the stroke control assembly and then drives the locking block to retreat to be separated from the sliding block body, and then the sliding block driving oil cylinder drives the sliding block to complete the demolding action.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and specifically relates to a lateral core-pulling mechanism for an injection mold with an anti-locking function. Background Technique

[0002] The lateral core-pulling mechanism is an important structure in injection molds and is used to take out workpieces with complex shapes from the mold after the injection process is completed. Especially in the case of side holes or irregular shapes in the mold, the lateral core-pulling mechanism can effectively solve the difficulties that may be encountered during the extraction process;

[0003] For example, a lateral core-pulling mechanism and an injection mold with the publication number CN109531940A relate to the technical field of molds. The lateral core-pulling mechanism includes a fixed template, a shovel base, an inclined guide post, a stop block, a first slider, a slider insert, and a core-pulling assembly. The shovel base and the stop block are both fixedly installed on the fixed template. The inclined guide post is fixedly connected to the shovel base and is slidably matched with the first slider. The ejector rod is slidably arranged in the first slider. An elastic member is arranged between the ejector rod and the first slider. The abutting surface is perpendicular to the axis of the ejector rod and is arranged at a preset angle with the core-pulling surface. The ejector rod is fixedly connected to the slider insert. Compared with the prior art, the provided lateral core-pulling mechanism can drive the slider insert to achieve rapid core-pulling when the ejector rod slides relative to the core-pulling surface due to the adoption of the ejector rod connected to the slider insert and abutting against the stop block, as well as the abutting surface and the core-pulling surface arranged at a preset angle, so as to avoid the phenomenon of sticking to the mold, improve the yield rate, and reduce the manufacturing cost;

[0004] The above-mentioned lateral core-pulling mechanism and injection mold can avoid the phenomenon of sticking to the mold, improve the yield rate, and reduce the manufacturing cost by fixedly connecting the ejector rod to the slider insert. However, during use, the connection position is prone to loosening, resulting in unstable connection of the device, and the connection position stability of the device is relatively poor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lateral core-pulling mechanism for an injection mold with an anti-locking function to solve the problem that the connection position is prone to loosening during use, resulting in unstable connection of the device and relatively poor connection position stability of the device as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A lateral core-pulling mechanism for an injection mold with an anti-locking function includes a slider body and a slider driving oil cylinder arranged at the upper end of the slider body, and a cooling water pipe is arranged above the left side of the slider body;

[0007] A locking block is arranged inside the slider body, a locking mechanism is arranged at the front end of the locking block, and a second oil pipe is arranged on the locking mechanism;

[0008] The upper and lower ends of the locking block are fixedly installed with fixing plates, and a pressing protection mechanism is fixedly installed inside the fixing plates. The pressing protection mechanism is provided with a pressing plate, and the pressing plate corresponds to the position of the locking oil cylinder.

[0009] Further, a first oil pipe is installed through the front end of the slider driving oil cylinder, and the output end of the slider driving oil cylinder is located inside the slider body.

[0010] Further, the lower end of the second oil pipe is installed through the upper end of the locking oil cylinder, the output end of the locking oil cylinder is nested and installed at the front end of the locking block, and the rear end of the locking block is embedded inside the slider body.

[0011] Further, a stroke control component is arranged on the right side of the locking oil cylinder, and the control end of the locking oil cylinder is connected to the rear end of the locking oil cylinder.

[0012] Further, a positioning rod is fixedly installed inside the fixing plate, a movable block is installed through the surface of the positioning rod, a buffer rod is rotatably installed inside the movable block, and the inner side of the buffer rod is rotatably installed inside the pressing plate.

[0013] Further, a return spring is nested on the surface of the positioning rod, and the left and right sides of the return spring are fixedly installed between the movable block and the fixing plate.

[0014] Further, an anti-slip pad is fixedly installed inside the pressing plate, a damping rod is fixedly installed outside the pressing plate, and the upper end of the damping rod is fixedly installed inside the fixing plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. A first oil pipe is arranged on the surface of the slider driving oil cylinder at the upper end of the slider body to add working fuel to it, a cooling water pipe for cooling is arranged on the left side of the slider body to cool the device, so as to achieve the effect of cooling use, and a second oil pipe is installed through the upper end of the locking oil cylinder, and the locking oil cylinder is driven by adding oil through the second oil pipe;

[0017] Further, when the mold is closed, after the locking oil cylinder receives the locking signal from the stroke control component, it drives the locking block to slide into the card slot of the slider body to lock the slider body, preventing the injection pressure during the mold filling process from causing displacement of the slider body; when the mold filling is completed and the mold is opened, first, the locking oil cylinder receives the mold opening signal from the stroke control component and then drives the locking block to retreat and disengage from the slider body, and then the slider driving oil cylinder drives the slider to complete the demolding action;

[0018] 2. There is a component that can provide stable protection. When the locking oil cylinder is connected to the locking block, the output end of the locking oil cylinder is prone to vertical shaking and deviation. It is clamped by the device inside the fixing plate. When the output end of the locking oil cylinder shakes, the pressure squeezes the pressure plate. Under the action of the buffer rod at the upper end, both the upper and lower ends of the buffer rod are rotatably installed. Therefore, under the pressure of the pressure plate, the buffer rod pushes the movable block, and the movable block slides along the positioning rod and compresses the return spring. The return spring buffers through its own elastic force. Under reverse pressure, the return spring can also make the pressure plate clamp and limit the locking oil cylinder through its elastic force, improving the working stability of the device;

[0019] Furthermore, an anti-slip pad is provided inside the pressure plate, and the inner side of the anti-slip pad fits the surface of the locking oil cylinder, increasing the friction between the pressure plate and the locking oil cylinder and ensuring the stability of the clamping;

[0020] Even further, when the return spring vibrates reciprocally, pressure relief is carried out through the damping rod between the pressure plate and the fixing plate to avoid the reciprocating vibration of the return spring and achieve the damping effect, which can further improve the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is the side three-dimensional structure schematic diagram of the present utility model;

[0023] Figure 3 is the rear three-dimensional structure schematic diagram of the present utility model;

[0024] Figure 4 is the sectional three-dimensional structure schematic diagram of the fixing plate of the present utility model;

[0025] Figure 5 is the present utility model Figure 4 the enlarged structure schematic diagram at A in;

[0026] Figure 6 is the front sectional three-dimensional structure schematic diagram of the fixing plate of the present utility model.

[0027] In the figure: 1. Slide block body; 2. Slide block driving oil cylinder; 3. First oil pipe; 4. Cooling water pipe; 5. Stroke control component; 6. Locking oil cylinder; 7. Second oil pipe; 8. Locking block; 9. Fixing plate; 10. Positioning rod; 11. Movable block; 12. Buffer rod; 13. Pressure plate; 14. Return spring; 15. Anti-slip pad; 16. Damping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] As Figure 1 、 Figure 2 and Figure 3 shown in the technical solution, in order to solve the problem of poor core-pulling effect, it discloses: a slider body 1 and a slider driving oil cylinder 2 arranged at the upper end of the slider body 1, and a cooling water pipe 4 is arranged above the left side of the slider body 1. The front end of the slider driving oil cylinder 2 is penetrated and installed with a first oil pipe 3, and the output end of the slider driving oil cylinder 2 is located inside the slider body 1;

[0031] In the embodiment, a first oil pipe 3 is arranged on the surface of the slider driving oil cylinder 2 at the upper end of the slider body 1 to add working fuel to it. A cooling water pipe 4 for cooling is arranged on the left side of the slider body 1 to cool the device, so as to achieve the effect of cooling use. And a second oil pipe 7 is penetrated and arranged at the upper end of the locking oil cylinder 6, and the oil is added through the second oil pipe 7 to drive the locking oil cylinder 6;

[0032] Embodiment 2:

[0033] As Figures 1 - 5 shown in the technical solution, in order to solve the problem of poor locking effect, it discloses: a locking block 8 is arranged inside the slider body 1, and a locking mechanism is arranged at the front end of the locking block 8. And the locking mechanism is provided with a second oil pipe 7. The lower end of the second oil pipe 7 is penetrated and installed at the upper end of the locking oil cylinder 6, and the output end of the locking oil cylinder 6 is nested and installed at the front end of the locking block 8. And the rear end of the locking block 8 is embedded inside the slider body 1. A stroke control component 5 is arranged on the right side of the locking oil cylinder 6, and the control end of the locking oil cylinder 6 is connected to the rear end of the locking oil cylinder 6;

[0034] In the embodiment, when the mold is closed, after the locking oil cylinder 6 receives the locking signal from the stroke control component 5, it drives the locking block 8 to slide into the card slot of the slider body 1 to lock the slider body 1, preventing the injection pressure during the mold filling process from causing displacement of the slider body 1; when the mold is opened after the mold filling is completed, first, the locking oil cylinder 6 receives the mold opening signal from the stroke control component 5 and drives the locking block 8 to retreat and disengage from the slider body 1, and then the slider driving oil cylinder 2 drives the slider to complete the demolding action;

[0035] Embodiment 3:

[0036] As Figures 1 - 6The disclosed technical solution is to solve the problem of unstable locking and movement of the device, and discloses that fixed plates 9 are fixedly installed at the upper and lower ends of the locking block 8, and a pressing and protecting mechanism is fixedly installed inside the fixed plates 9. The pressing and protecting mechanism is provided with a pressing plate 13, and the pressing plate 13 corresponds to the position of the locking oil cylinder 6. A positioning rod 10 is fixedly installed inside the fixed plate 9, and a movable block 11 is installed through the surface of the positioning rod 10. A buffer rod 12 is rotatably installed inside the movable block 11, and the inner side of the buffer rod 12 is rotatably installed inside the pressing plate 13. A return spring 14 is nested on the surface of the positioning rod 10, and the left and right sides of the return spring 14 are fixedly installed between the movable block 11 and the fixed plate 9. An anti-slip pad 15 is fixedly installed inside the pressing plate 13, and a damping rod 16 is fixedly installed outside the pressing plate 13, and the upper end of the damping rod 16 is fixedly installed inside the fixed plate 9;

[0037] In the embodiment, a component capable of stable protection is provided. When the locking oil cylinder 6 is connected to the locking block 8, the output end of the locking oil cylinder 6 is prone to shaking up and down, resulting in deviation. It is clamped by the device inside the fixed plate 9. When the output end of the locking oil cylinder 6 shakes, the pressure squeezes the pressing plate 13. Under the action of the buffer rod 12 at the upper end of the pressing plate 13, both the upper and lower ends of the buffer rod 12 are rotatably installed. Therefore, under the pressure of the pressing plate 13, the buffer rod 12 pushes the movable block 11, and the movable block 11 slides along the positioning rod 10 and squeezes the return spring 14. The return spring 14 buffers through its own elastic force. Under the reverse pressure, the pressing plate 13 can also be clamped and limited to the locking oil cylinder 6 through the elastic force of the return spring 14, improving the working stability of the device. An anti-slip pad 15 is provided inside the pressing plate 13, and the inner side of the anti-slip pad 15 fits the surface of the locking oil cylinder 6, increasing the friction between the pressing plate 13 and the locking oil cylinder 6 and ensuring the stability of the clamping. When the return spring 14 vibrates reciprocally, the damping rod 16 between the pressing plate 13 and the fixed plate 9 is used to relieve pressure, avoiding the reciprocal vibration of the return spring 14 and achieving the damping effect, which can further improve the stability of the device.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lateral core pulling mechanism for an injection mold with an anti-locking function, comprising a slider body (1) and a slider driving cylinder (2) arranged at the upper end of the slider body (1), and a cooling water pipe (4) is arranged above the left side of the slider body (1); Features: A locking block (8) is arranged inside the slider body (1), a locking mechanism is arranged at the front end of the locking block (8), and the locking mechanism is provided with a second oil pipe (7); The upper and lower ends of the locking block (8) are fixedly mounted with fixing plates (9), and a pressing protection mechanism is fixedly mounted inside the fixing plate (9), and the pressing protection mechanism is provided with a pressing plate (13), and the position of the pressing plate (13) corresponds to that of the locking oil cylinder (6).

2. The lateral core pulling mechanism for an injection mold with an anti-locking function according to claim 1, characterized in that: A first oil pipe (3) is installed through the front end of the slider driving oil cylinder (2), and the output end of the slider driving oil cylinder (2) is located inside the slider body (1).

3. The lateral core pulling mechanism for an injection mold with an anti-locking function according to claim 1, characterized in that: The lower end of the second oil pipe (7) is installed through the upper end of the locking oil cylinder (6), and the output end of the locking oil cylinder (6) is nested and installed in the front end of the locking block (8), and the rear end of the locking block (8) is embedded in the interior of the slider body (1).

4. The lateral core pulling mechanism for an injection mold with an anti-locking function according to claim 3, characterized in that: A stroke control assembly (5) is provided on the right side of the locking oil cylinder (6), and the control end of the locking oil cylinder (6) is connected to the rear end of the locking oil cylinder (6).

5. The lateral core pulling mechanism for an injection mold with an anti-locking function according to claim 1, characterized in that: A positioning rod (10) is fixedly installed on the inner side of the fixed plate (9), and a movable block (11) is installed through the surface of the positioning rod (10), and a buffer rod (12) is rotatably installed on the inner side of the movable block (11), and the inner side of the buffer rod (12) is rotatably installed on the inner side of the pressure plate (13).

6. The side core pulling mechanism with reverse locking function for injection mold according to claim 5, characterized in that: A return spring (14) is nested on the surface of the positioning rod (10), and the left and right sides of the return spring (14) are fixedly installed between the movable block (11) and the fixed plate (9).

7. The lateral core pulling mechanism with reverse locking function for injection mold according to claim 6, characterized in that: An anti-slip pad (15) is fixedly mounted on the inner side of the pressure plate (13), and a damping rod (16) is fixedly mounted on the outer side of the pressure plate (13), and the upper end of the damping rod (16) is fixedly mounted on the inner side of the fixing plate (9).

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