Sliding block anti-retreating structure for injection mold

Abstract

The utility model relates to a slider anti-retreating structure for injection molds, which comprises injection molds capable of relatively moving, a support and sliders respectively positioned on one sides of the two injection molds, a rack is slidably connected onto the support, one end of the rack far away from the support is detachably and fixedly connected with the sliders, and a gear is rotatably connected onto the support in a driven manner. The gear is meshed with the rack, the support is fixedly connected with a limiting rod, the limiting rod is in sliding connection with the rack, one end of the limiting rod can penetrate through the sliding block, the injection mold is fixed through driving of the rack and the gear, and the situation that the stability is not stable when the sliding block applies pressure due to oil leakage of the oil cylinder can be avoided; and therefore, the conditions that steps appear on the workpiece and burrs are increased can be indirectly reduced, and the yield of the workpiece is further indirectly improved.

Description

Technical field

[0001] The utility model relates to the technical field of anti-retraction structures of sliders of injection molds, in particular to an anti-retraction structure of sliders of injection molds. [Background Technology]

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, precise product dimensions, easy product upgrades, and the ability to produce parts with complex shapes. Injection molding is suitable for mass production and molding fields such as products with complex shapes. When injection molding objects, injection molds are used, and the shapes required by personnel can be formed through injection molds. However, when the injection mold is injected, the mold will be disengaged due to the expansion force of the injection liquid. At this time, personnel will use a slider, which is mainly driven by an oil cylinder. The oil cylinder drives the slider to move, so that the two injection molds can be attached to each other, reducing the possibility of the injection mold being disengaged.

[0003] Although the above solution can reduce the possibility of the injection mold being disengaged during injection molding, the oil cylinder relies on an external hydraulic press to increase the oil pressure, and it is necessary to continuously test the injection mold so that the thrust of the oil cylinder can be greater than the injection pressure and reduce the mold disengagement. However, in this case, the oil cylinder is always in a long-term high-load working state. Once the oil cylinder is used for a long time, it is easy to cause the oil seal inside the oil cylinder to be damaged, and even worse, oil leakage will occur, which will eventually lead to unstable pressure stability of the slider. Once the pressure is less than the pressure of mold disengagement, it is easy to cause steps in the workpiece molding or increase the burrs of the workpiece. [Utility Model Content]

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a slider anti-retraction structure for an injection mold, which can reduce the situation where the injection mold is disengaged.

[0005] To achieve the above-mentioned purpose, the utility model proposes a slider anti-retraction structure for an injection mold, comprising: an injection mold capable of relative movement, a bracket, and sliders located on one side of each of the two injection molds.

[0006] The bracket is slidably connected to a rack, and the end of the rack away from the bracket is detachably fixedly connected to the slider;

[0007] The bracket is driven to rotate and is connected to a gear, which is meshed with the rack;

[0008] A limiting rod is fixedly connected to the bracket, the limiting rod is slidably connected to the rack, and one end of the limiting rod can pass through the slider.

[0009] Preferably, a clamping plate is driven and slidably connected to the bracket, and an end of the clamping plate away from the bracket is arranged opposite to the injection mold.

[0010] Preferably, a sliding rod is fixedly connected to the abutting plate, and the sliding rod is slidably connected to the bracket. A movable plate is driven to slide on the bracket, and the movable plate is fixedly connected to the sliding rod.

[0011] Preferably, a screw is rotatably connected to the bracket, and the screw is threadedly connected to the movable plate. A motor 1 is fixedly connected to the bracket, and an output shaft of the motor 1 is fixedly connected to the screw.

[0012] Preferably, the rack is fixedly connected to a limit plate, and the bracket is fixedly connected to a telescopic rod, one end of the telescopic rod is fixedly connected to the limit plate.

[0013] Preferably, a buffer plate is slidably connected to the bracket, a spring is fixedly connected to the bracket, one end of the spring is fixedly connected to the buffer plate, and the buffer plate and the rack are arranged opposite to each other.

[0014] Preferably, a limiting block 1 is fixedly connected inside the rack, and a limiting block 2 is fixedly connected to the limiting rod, and the limiting block 1 can be attached to the limiting block 2.

[0015] Beneficial effects of the present invention: Compared with the prior art, the present invention provides a driven sliding rack on the bracket, and utilizes the sliding of the rack to drive the slider to press against the injection mold, thereby fixing the injection mold. Fixing the injection mold by driving the rack and the gear can avoid oil leakage from the cylinder and causing unstable stability when the slider is pressurized, thereby indirectly reducing the occurrence of steps and burrs on the workpiece, and further indirectly improving the yield of the workpiece.

[0016] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings.

Brief Description of the Drawings

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the position of the second motor of the present invention.

[0019] In the figure: 1. Injection mold; 2. Bracket; 3. Slider; 4. Rack; 5. Gear; 6. Limit rod; 7. Clamping plate; 8. Sliding rod; 9. Moving plate; 10. Lead screw; 11. Motor 1; 12. Limit plate; 13. Telescopic rod; 14. Buffer plate; 15. Spring; 16. Limit block 1; 17. Limit block 2; 18. Motor 2. [Specific implementation method]

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0024] like Figures 1 to 2 A slider 3 anti-retraction structure for an injection mold, comprising: an injection mold 1 capable of relative movement, a bracket 2, and sliders 3 located on one side of each of the two injection molds 1. The injection mold 1 is mainly driven by a cylinder to achieve relative movement of the two injection molds 1, and the sliders 3 are mainly used to press against the injection mold 1 to prevent the injection mold 1 from being disengaged;

[0025] The anti-retraction structure of the slider 3 of the present invention further includes: a rack 4, a gear 5 and a limiting rod 6;

[0026] The rack 4 is slidably connected to the bracket 2, and one end of the rack 4 is detachably fixedly connected to the slider 3. Therefore, the movement of the rack 4 drives the slider 3 to move and makes the slider 3 press against the mold, thereby achieving the fixation of the injection mold 1. The rack 4 and the slider 3 are disassembled by means of a bolt. The bolt is rotatably connected to the rack 4, and one end extends to the slider 3 and is threadedly connected to the slider 3 to fix the slider 3. When disassembling, it is only necessary to remove the bolt.

[0027] The rack 4 is driven mainly by the gear 5. The gear 5 is driven by the second motor 18 to rotate and is connected to the bracket 2 and meshes with the rack 4. The second motor 18 is used to rotate the gear 5, thereby driving the rack 4 to move. It is worth mentioning that the second motor 18 is fixedly connected to the bracket 2, and its output shaft is fixedly connected to the gear 5, so that the rotation of the gear 5 can be realized.

[0028] A limit rod 6 is fixedly connected to the bracket 2, and the limit rod 6 is slidably connected to the rack 4, wherein one end of the limit rod 6 passes through the slider 3, mainly used to support the rack 4

[0029] Specifically, since the bracket 2 is driven to slide and is connected to a clamping plate 7, the end of the clamping plate 7 away from the bracket 2 is arranged opposite to the injection mold 1. By moving the clamping block, the clamping block presses against the slider 3, which can further fix the slider 3.

[0030] Specifically, a sliding rod 8 is fixedly connected to the clamping plate 7, and the sliding rod 8 is slidingly connected to the bracket 2. A movable plate 9 is driven to slide on the bracket 2, and the movable plate 9 is fixedly connected to the sliding rod 8. Through the movement of the movable plate 9, the sliding rod 8 can drive the clamping plate 7 to clamp the slider 3, wherein the sliding rod 8 is mainly used to support the clamping plate 7.

[0031] Specifically, the movable plate 9 is driven by a motor 11 and a lead screw 10. The lead screw 10 is rotatably connected to the bracket 2 and is threadedly connected to the movable plate 9, so that the movable plate 9 can be moved. The motor 11 is fixedly connected to the bracket 2, and its output shaft is fixedly connected to the lead screw 10, so that the movable plate 9 can be moved.

[0032] Specifically, a limit plate 12 is fixedly connected to the rack 4, and a telescopic rod 13 is fixedly connected to the limit plate 12. By fixing one end of the telescopic rod 13 to the limit plate 12, the rack 4 can be limited to prevent the rack 4 from rotating.

[0033] Specifically, a buffer plate 14 is slidably connected to the bracket 2, and a spring 15 fixedly connected to the bracket 2 is fixedly connected to the buffer plate 14. The buffer plate 14 is buffered by the spring 15, and the rack 4 can be buffered to prevent the rack 4 from hitting the bracket 2.

[0034] Specifically, a limit block 16 is fixedly connected inside the rack 4, and a limit block 2 17 is fixedly connected to the limit rod 6. By affixing the limit block 16 and the limit block 2 17, the rack 4 can be limited to prevent the rack 4 from moving outside the limit rod 6.

[0035] Principle of the present invention: The present invention utilizes motor 2 18 to drive the rack 4 to move, and utilizes the movement of the rack 4 to enable the slider 3 to move in the process of sliding on the limit rod 6, so that the slider 3 and the injection mold 1 are fixed, and the movement of the clamping plate 7 can clamp the slider 3 and fix the slider 3, thereby achieving the fixation of the injection mold 1.

[0036] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A slide block (3) anti-retraction structure for an injection mold, comprising: An injection mold (1) capable of relative movement, a bracket (2), and a slider (3) located on one side of each of the two injection molds (1), characterized in that: A rack (4) is slidably connected to the bracket (2), and an end of the rack (4) away from the bracket (2) is detachably fixedly connected to the slider (3); The bracket (2) is driven to rotate and is connected to a gear (5), and the gear (5) is meshed with a rack (4); A limiting rod (6) is fixedly connected to the bracket (2), the limiting rod (6) is slidably connected to the rack (4), and one end of the limiting rod (6) can pass through the slider (3).

2. The anti-retraction structure of a slider (3) for an injection mold according to claim 1, characterized in that: The bracket (2) is driven to slide and is connected to a clamping plate (7), and one end of the clamping plate (7) away from the bracket (2) is arranged opposite to the injection mold (1).

3. The anti-retraction structure of a slider (3) for an injection mold according to claim 2, characterized in that: The pressing plate (7) is fixedly connected to a sliding rod (8), and the sliding rod (8) is slidably connected to the bracket (2). The bracket (2) is driven to slide and is connected to a moving plate (9), and the moving plate (9) is fixedly connected to the sliding rod (8).

4. The anti-retraction structure of a slider (3) for an injection mold according to claim 3, characterized in that: A lead screw (10) is rotatably connected to the bracket (2), and the lead screw (10) is threadedly connected to the movable plate (9). A motor (11) is fixedly connected to the bracket (2), and an output shaft of the motor (11) is fixedly connected to the lead screw (10).

5. The anti-retraction structure of a slider (3) for an injection mold according to claim 1, characterized in that: The rack (4) is fixedly connected to a limit plate (12), and a telescopic rod (13) is fixedly connected to the bracket (2), and one end of the telescopic rod (13) is fixedly connected to the limit plate (12).

6. The anti-retraction structure of a slider (3) for an injection mold according to claim 5, characterized in that: A buffer plate (14) is slidably connected to the bracket (2), a spring (15) is fixedly connected to the bracket (2), one end of the spring (15) is fixedly connected to the buffer plate (14), and the buffer plate (14) and the rack (4) are arranged opposite to each other.

7. The anti-retraction structure of a slider (3) for an injection mold according to claim 1, characterized in that: A first limiting block (16) is fixedly connected inside the rack (4), and a second limiting block (17) is fixedly connected to the limiting rod (6). The first limiting block (16) can be attached to the second limiting block (17).

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