Injection mold ejector rod reset detection device

Abstract

The utility model aims to provide an injection mold ejector rod reset detection device which comprises a fixed seat and a movable assembly movably mounted on the fixed seat, a magnetic part is arranged on the fixed seat, and an inductive switch is arranged on the movable assembly; a T-shaped sliding groove is formed in the fixed seat, the movable assembly is composed of a movable block, a bolt and a fastener which can slide in the T-shaped sliding groove and is provided with a screw hole, a through hole penetrating through the fixed seat is formed in the position, corresponding to the T-shaped sliding groove, of the movable block, and after the position of the movable block on the fixed seat is adjusted, the through hole penetrates through the fixed seat. And a bolt penetrates through the through hole and is in threaded connection with the fastener arranged in the T-shaped chute. The reset condition of the ejector rod of the injection mold is detected through the inductive switch, mold pressing caused by abnormity during mold closing of the mold is prevented, and the recognition efficiency is high; the magnetic piece is in adsorption connection with the injection mold, position replacement is fast and flexible, and mounting and dismounting are convenient; and the movable assembly can slide in the T-shaped sliding groove, so that the smoothness during position adjustment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection mold detection, and particularly relates to a detection device for the reset of ejector rods of an injection mold. Background Art

[0002] At present, plastic injection molded parts are widely used in daily necessities, electronic products or automotive decorations. Plastic injection molded parts are processed by a plastic injection molding machine, and the working condition of the plastic injection molding machine directly determines the quality of the injection molded workpiece. In the existing injection molding machine, an ejector rod is required to eject the injection molded workpiece, and then the ejector rod is reset to start the next mold clamping of the mold. In the above actions, the mold clamping action is controlled by a mold clamping solenoid valve, and the ejector rod reset action is controlled by a core pulling solenoid valve. Among them, the mold clamping solenoid valve controls the mold clamping action according to the set mold clamping time. If the mold lubrication is not good or the core pulling solenoid valve of the equipment fails, the ejector rod reset time is too long or it cannot be reset, which will cause mold collision. In the plastic injection molding industry, the above mold collision phenomenon often occurs and is unpredictable and unstoppable. Especially for molds with three-dimensional patterns or corroded surfaces, once mold collision occurs and the mold is damaged, it will not only affect the normal production, but also generate high mold repair costs. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a detection device for the reset of ejector rods of an injection mold, which can detect the reset condition of the ejector rods of the injection mold, prevent the mold from being pressed due to abnormalities during mold clamping, and is convenient for installation and disassembly.

[0004] According to the detection device for the reset of ejector rods of an injection mold provided by the utility model, it includes a fixed seat and a movable component movably installed on the fixed seat. A magnetic part is arranged on the fixed seat, and an induction switch is arranged on the movable component.

[0005] As a further scheme of the utility model, the fixed seat is provided with a T-shaped chute. The movable component is composed of a movable block, a bolt and a fastener that can slide in the T-shaped chute and has a threaded hole. A through hole penetrating the fixed seat is arranged on the movable block corresponding to the position of the T-shaped chute. After the position of the movable block on the fixed seat is adjusted, the bolt is passed through the through hole and threadedly connected with the fastener placed in the T-shaped chute, so that the movable block is installed on the fixed seat.

[0006] As a further scheme of the utility model, a groove is arranged along the length direction on the bottom surface of the T-shaped chute. Since the fixing of the movable block is realized by the threaded connection between the bolt and the fastener, in order to fasten the movable block to the fixed seat, the bolt usually passes through the threaded hole of the fastener when tightened, that is, the groove reserves space for the part passing through the threaded hole to ensure that the movable block with adjusted position can be firmly fixed on the fixed seat.

[0007] The induction switch is electrically connected to the core-pulling solenoid valve that controls the reset action of the ejector rod of the injection mold. The induction switch is used to detect the reset condition of the ejector rod of the injection mold. During use, since the injection mold is usually made of steel, the magnetic part can be adsorbed on the injection mold, so that the fixed seat can be quickly and flexibly moved to a suitable position where the reset position of the ejector rod of the injection mold can be detected.

[0008] As a further solution of the present invention, T-shaped chutes are respectively provided on the two opposite side surfaces of the fixed seat, and the movable assembly can select the corresponding T-shaped chute according to actual position requirements.

[0009] As a further solution of the present invention, the fixed seat is in the shape of a strip-shaped square body. The end surface of the movable block near the T-shaped chute is provided with a socket groove, and the socket groove matches the end surface of the fixed seat where the T-shaped chute is opened. During installation, the movable block can be socketed on the fixed seat through the socket groove.

[0010] As a further solution of the present invention, an end cover of the T-shaped chute is provided on the fixed seat. In order to place the fastener into the appropriate T-shaped chute, the T-shaped chute penetrates the fixed seat to form a notch. When the fastener is placed into the T-shaped chute, the end cover seals the notch to prevent the movable assembly from sliding out of the notch during adjustment and movement. At the same time, the end cover also plays a decorative role.

[0011] As a further solution of the present invention, scales are provided on the fixed seat to provide a reference when adjusting the position of the movable assembly and improve the accuracy of the position of the movable assembly.

[0012] The present invention has the following advantages and effects: By detecting the reset condition of the ejector rod of the injection mold through the induction switch, it can prevent the mold from pressing the film due to abnormalities during mold closing, and the recognition efficiency is high; By adsorbing and connecting with the injection mold through the magnetic part, the position can be changed quickly and flexibly, which is convenient for installation and disassembly; The movable assembly can slide in the T-shaped chute, improving the smoothness during position adjustment. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention;

[0014] Figure 2 It is a schematic side view of the structure of a preferred embodiment of the present invention;

[0015] Figure 3 It is a schematic separated view of the structure of a preferred embodiment of the present invention;

[0016] Figure 4 is Figure 2 A sectional view taken along the line A-A in

[0017] The illustrations are as follows: 1. Fixed seat; 2. Movable component; 3. Magnetic part; 4. Inductive switch; 11. T-shaped sliding groove; 21. Movable block; 22. Bolt; 23. Fastener; 211. Through hole; 111. Groove; 212. Socket groove; 5. End cap; 112. Notch; 12. Scale. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] It should be noted that in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0020] At the same time, in the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] As Figures 1-4 shown, an ejector rod reset detection device for an injection mold includes a fixed seat 1 and a movable component 2 movably installed on the fixed seat 1. A magnetic part 3 is provided on the fixed seat 1, and an inductive switch 4 is provided on the movable component 2.

[0022] In this preferred embodiment, the fixed seat 1 is provided with a T-shaped sliding groove 11. The movable component 2 is composed of a movable block 21, a bolt 22, and a fastener 23 that can slide in the T-shaped sliding groove 11 and has a threaded hole. A through hole 211 penetrating the fixed seat 1 is provided on the movable block 21 corresponding to the position of the T-shaped sliding groove 11. After the position of the movable block 21 on the fixed seat 1 is adjusted, the bolt 22 is passed through the through hole 211 and threadedly connected to the fastener 23 placed in the T-shaped sliding groove 11, so that the movable block 21 is installed on the fixed seat 1.

[0023] In this preferred embodiment, a groove 111 is provided on the bottom surface of the T-shaped slide groove 11 along the length direction. Since the movable block 21 is fixed by a bolt 22 and a fastener 23 being threadedly connected, in order to fasten the movable block 21 to the fixed seat 1, the bolt 22 usually passes through the screw hole of the fastener 23 when being tightened, that is, the groove 111 is a reserved space for the part passing through the screw hole, so as to ensure that the movable block 21 with a properly adjusted position can be firmly fixed to the fixed seat 1.

[0024] In the preferred embodiment, the induction switch 4 is an infrared induction switch, which is electrically connected to the core-pulling solenoid valve that controls the reset action of the injection mold ejector pin, and the induction switch 4 is used to detect the reset of the injection mold ejector pin. When in use, since the injection mold is usually made of steel, the magnetic member 3 can be adsorbed on the injection mold, so that the fixing seat 1 can be quickly and flexibly moved to a suitable position where the reset position of the injection mold ejector pin can be detected.

[0025] In the preferred embodiment, two opposite side surfaces of the fixing seat 1 are respectively provided with T-shaped sliding grooves 11 , so that the movable component 2 can select the corresponding T-shaped sliding groove 11 according to the actual position requirements.

[0026] In this preferred embodiment, the fixed seat 1 is a strip-shaped square body, and the end face of the movable block 21 near the T-shaped slide groove 11 is provided with a sleeve groove 212, and the sleeve groove 212 matches the end face of the fixed seat 1 with the T-shaped slide groove 11. During installation, the movable block 21 can be sleeved on the fixed seat 1 through the sleeve groove 212, that is, the side of the movable block 21 is in a "匚" shape.

[0027] In this preferred embodiment, the fixing seat 1 is provided with an end cover 5 of the T-shaped slot 11. In order to place the fastener 23 in a suitable T-shaped slot 11, the T-shaped slot 11 penetrates the fixing seat 1 to form a notch 112. When the fastener 23 is placed in the T-shaped slot 11, the end cover 5 blocks the notch 112 to prevent the movable component 2 from sliding out of the notch 112 during adjustment and movement. At the same time, the end cover 5 also serves as a decoration.

[0028] In this preferred embodiment, a scale 12 is provided on the fixing seat 1 to provide a reference when adjusting the position of the movable component 2, thereby improving the accuracy of the position of the movable component 2.

[0029] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An injection mold ejector pin reset detection device, characterized in that: It comprises a fixing seat and a movable component which is movably mounted on the fixing seat. The fixing seat is provided with a magnetic piece, and the movable component is provided with an induction switch.

2. The injection mold ejector pin reset detection device according to claim 1, characterized in that: The fixed seat is provided with a T-shaped slot, and the movable assembly is composed of a movable block, a bolt, and a fastener with a screw hole that can slide in the T-shaped slot. A through hole that penetrates the fixed seat is provided on the movable block corresponding to the position of the T-shaped slot. After the movable block is adjusted to its position on the fixed seat, the bolt is passed through the through hole and threadedly connected with the fastener placed in the T-shaped slot.

3. The injection mold ejector pin reset detection device according to claim 2, characterized in that: The bottom surface of the T-shaped slide groove is provided with a groove along the length direction.

4. The injection mold ejector pin reset detection device according to claim 3, characterized in that: Two opposite side surfaces of the fixing seat are respectively provided with T-shaped sliding grooves.

5. The injection mold ejector pin reset detection device according to claim 4, characterized in that: The fixed seat is a strip-shaped square body, and the end face of the movable block near the T-shaped slide groove is provided with a sleeve groove, which matches the end face of the fixed seat with the T-shaped slide groove. During installation, the movable block can be sleeved on the fixed seat through the sleeve groove.

6. The injection mold ejector pin reset detection device according to claim 5, characterized in that: The fixing seat is provided with an end cover of a T-shaped sliding groove.

7. The injection mold ejector pin reset detection device according to claim 1, characterized in that: The fixing seat is provided with a scale.

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