Automatic nut press-in jig for injection molding

Abstract

The utility model is specifically related to a nut automatic pressing jig for injection molding, characterized in that: a main support is provided, first lifting mechanism and second lifting mechanism are fixedly connected to the main support, a sliding seat is fixedly connected to the moving end of the first lifting mechanism, a pressing rod is arranged at the lower part of the sliding seat, a guide cylinder is fixedly connected to the lower part of the main support, guide holes are formed in the guide cylinder, the lower end of the pressing rod penetrates through the main support and extends into the guide hole, a side support is fixedly connected to the moving end of the second lifting mechanism, a clearance hole is formed in the side support, and a clamping jaw cylinder is fixedly connected to the side support beside the clearance hole. The utility model has the following beneficial effects: the nut can be automatically pressed into the cavity of the mold, the implantation action is completed, the nut is prevented from being placed askew or obliquely, and the product yield is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment, specifically to an automatic nut-pressing fixture for injection molding. Background Technology

[0002] In the production of plastic products, the plastic-coated metal process requires placing the metal part inside a mold cavity for injection molding. This technology is widely used in fields such as electronics, automotive parts, medical devices, and digital product casings.

[0003] There is a type of injection molded part where, during processing, a cylindrical metal nut needs to be placed into the corresponding slot in the mold cavity to complete the pre-loading process. Currently, the placement method involves operators manually inserting the nuts one by one into the mold cavity. Manual placement is prone to misalignment and tilting of the nuts, resulting in a high product defect rate. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic nut pressing fixture for injection molding, which can automatically press the nut into the cavity of the mold to complete the implantation action, avoid the nut being placed crookedly or at an angle, and improve the product yield.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic nut pressing fixture for injection molding, characterized in that: it includes a main support, on which a first lifting mechanism and a second lifting mechanism are fixedly connected; a slide is fixedly connected to the moving end of the first lifting mechanism; a pressure rod is provided at the lower part of the slide; a guide cylinder is fixedly connected to the lower part of the main support; a guide hole is opened on the guide cylinder; the lower end of the pressure rod passes through the main support and extends into the guide hole; a side support is fixedly connected to the moving end of the second lifting mechanism; a clearance hole is opened on the side support; and a gripper cylinder is fixedly connected to the side support next to the clearance hole.

[0006] Furthermore, the lower part of the main support is fixedly connected with multiple travel limit posts.

[0007] Furthermore, the travel limit post is specifically in the shape of a stepped column.

[0008] Furthermore, the slide block is slidably connected to the main support, and the guide hole is coaxially arranged with the pressure rod.

[0009] Furthermore, the slide has a positioning hole, the pressure rod is located in the positioning hole, and a cover plate can be detachably installed on the slide, with the pressure rod located between the cover plate and the slide.

[0010] Furthermore, the guide cylinder is provided with U-shaped grooves on both sides of the guide hole, and the U-shaped grooves are connected to the guide hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: it can automatically press the nut into the cavity of the mold to complete the implantation action, avoid the nut being placed crookedly or at an angle, and improve the product yield. Attached Figure Description

[0012] Figure 1 This is a first-person perspective view of the entire utility model.

[0013] Figure 2 This is a schematic diagram of the entire utility model from a second perspective.

[0014] Figure 3 This is a schematic diagram of the injection molding waste clamping method of this utility model.

[0015] Figure 4 This is a schematic diagram of waste unloading according to the present invention.

[0016] In the diagram: 1. Main support; 2. First lifting mechanism; 3. Second lifting mechanism; 4. Slide; 401. Pressure rod; 5. Guide cylinder; 501. Guide hole; 6. Side support; 601. Clearance hole; 602. Gripper cylinder; 7. Stroke limit post; 8. Cover plate; 9. Injection waste. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example:

[0019] Please see Figure 1-4 The automatic nut pressing fixture for injection molding shown includes a main support 1. A first lifting mechanism 2 and a second lifting mechanism 3 are fixedly connected to the main support 1. A slide 4 is fixedly connected to the moving end of the first lifting mechanism 2. A pressure rod 401 is provided at the lower part of the slide 4. A guide cylinder 5 is fixedly connected to the lower part of the main support 1. A guide hole 501 is opened on the guide cylinder 5. The lower end of the pressure rod 401 passes through the main support 1 and extends into the guide hole 501. A side support 6 is fixedly connected to the moving end of the second lifting mechanism 3. A clearance hole 601 is opened on the side support 6. A gripper cylinder 602 is fixedly connected to the side support 6 next to the clearance hole 601.

[0020] Multiple stroke limiting posts 7 are fixedly connected to the lower part of the main support 1, and the stroke limiting posts 7 are specifically stepped posts. On the one hand, the stroke limiting posts 7 can match the holes and grooves on the mold to improve the docking accuracy. On the other hand, it prevents the main support 1 from being excessively pressed down and causing damage to the mold cavity.

[0021] The slide block 4 is slidably connected to the main support 1. The main support 1 can guide the lifting and lowering action of the slide block 4. The guide hole 501 and the pressure rod 401 are coaxially arranged. When the pressing action is performed, the pressure rod 401 passes through the guide hole 501 and presses into the cavity.

[0022] A positioning hole is provided on the slide block 4, and the pressure rod 401 is inserted into the positioning hole. A cover plate 8 can be detached from the slide block 4, and the pressure rod 401 is limited and fixed on the slide block 4 by the cover plate 8.

[0023] The guide cylinder 5 is provided with U-shaped grooves on both sides of the guide hole 501. The U-shaped grooves are connected to the guide hole 501. The U-shaped grooves facilitate observation of whether there is a nut workpiece in the guide hole 501.

[0024] The working principle of this utility model is as follows: When in use, the first lifting mechanism 2 and the second lifting mechanism 3 can be adopted as a sliding cylinder, and the main support 1 is fixed on the external robotic arm.

[0025] When the nut is inserted, the mold is in the open state. At this time, the nut to be inserted is inserted into the guide hole 501 (when processing, the mold is in the horizontal state, and the mold opening and closing action moves in the horizontal direction). Subsequently, the external robot will drive the main support 1 to move to the insertion station. At this time, the guide seat 5 is opposite to the cavity of the mold. The piston rod of the first lifting mechanism 2 extends, and the slide 4 and the pressure rod 401 will slide towards the cavity side of the mold until the nut is completely pressed into the cavity of the mold to complete the insertion and feeding. After that, the mold is closed and injection molding is performed.

[0026] When removing injection molding waste, after the injection molding mold is opened, the external robot arm moves the side support 6 to the unloading station. At this time, the piston rod of the second lifting mechanism 3 extends, the side support 6 moves horizontally towards the side of the waste material, and one end of the injection molding waste 9 passes through the clearance hole 601. After the gripper of the gripper cylinder 602 clamps the injection molding waste 9, the second lifting mechanism 3 resets, thus realizing the unloading of the injection molding waste 9.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic nut-pressing fixture for injection molding, characterized in that: The system includes a main support (1), on which a first lifting mechanism (2) and a second lifting mechanism (3) are fixedly connected. A slide (4) is fixedly connected to the moving end of the first lifting mechanism (2). A pressure rod (401) is provided at the lower part of the slide (4). A guide cylinder (5) is fixedly connected to the lower part of the main support (1). A guide hole (501) is opened on the guide cylinder (5). The lower end of the pressure rod (401) passes through the main support (1) and extends into the guide hole (501). A side support (6) is fixedly connected to the moving end of the second lifting mechanism (3). A clearance hole (601) is opened on the side support (6). A gripper cylinder (602) is fixedly connected to the side support (6) next to the clearance hole (601).

2. The automatic nut pressing fixture for injection molding according to claim 1, characterized in that: The main support (1) is fixedly connected to a number of travel limit posts (7) at its lower part.

3. The automatic nut pressing fixture for injection molding according to claim 2, characterized in that: The travel limit post (7) is specifically in the shape of a stepped post.

4. The automatic nut pressing fixture for injection molding according to claim 1, characterized in that: The slide block (4) is slidably connected to the main support (1), and the guide hole (501) is coaxially arranged with the pressure rod (401).

5. The automatic nut pressing fixture for injection molding according to claim 1, characterized in that: The slide (4) has a positioning hole, the pressure rod (401) is located in the positioning hole, and the slide (4) has a cover plate (8) that can be detached and installed. The pressure rod (401) is located between the cover plate (8) and the slide (4).

6. The automatic nut pressing fixture for injection molding according to claim 1, characterized in that: The guide cylinder (5) is provided with U-shaped grooves on both sides of the guide hole (501), and the U-shaped grooves are connected to the guide hole (501).

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