Anti-loose mechanism for a tie bar of an injection molding machine

Abstract

The utility model relates to injection molding machine technical field, concretely is a kind of anti-loosening mechanism for injection molding machine godin column, the periphery right side of godin column body is equipped with lock mould plate, the periphery middle part of godin column body is equipped with hexagonal block, the right side of hexagonal block is equipped with friction pad, and friction pad and hexagonal block are welded, the left side of hexagonal block is equipped with outer screw cylinder, and outer screw cylinder and hexagonal block are welded;Beneficial effects are: after godin column body is rotated and installed to lock mould plate, hexagonal block is pressed tightly lock mould plate using torque wrench, the rough surface of friction pad enhances the friction between both to promote the anti-loosening effect;Subsequently, lock screw cylinder is rotated into outer screw cylinder and applies torque, after internal thread hole one is aligned with internal thread hole two, through internal hexagonal groove drive stud is rotated into hole. The reverse thread of special design makes hexagonal block loosening simultaneously drive lock screw cylinder rotation, and the right movement of screw cylinder on stud can reverse lock hexagonal block, thereby double-preventing godin column body loosening.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machines, specifically to an anti-loosening mechanism for the tie rods of an injection molding machine. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] Existing injection molding machine tie bars are prone to problems such as unbalanced clamping force (e.g., inconsistent tie rod lengths, uneven mold installation), wear of mechanical parts (hinge displacement, damaged threads of the mold adjusting nut, wear of the crankshaft bushing), and improper operation (incorrect clamping force adjustment, excessive mold opening impact). These issues can lead to loosening of the tie bars, affecting the normal operation of the injection molding machine. Therefore, an anti-loosening mechanism for injection molding machine tie bars is needed. Utility Model Content

[0004] The purpose of this invention is to provide an anti-loosening mechanism for the gatepost of an injection molding machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking template is installed on the right side of the outer periphery of the tie column body, the hexagonal block is installed in the middle of the outer periphery of the tie column body, a friction pad is installed on the right side of the hexagonal block, and the friction pad and the hexagonal block are welded together. The rough surface of the friction pad increases the friction between the locking template and the friction pad, and the fixing and anti-loosening effect of the hexagonal block is better.

[0006] Preferably, an external screw is installed on the left side of the hexagonal block, and the external screw is welded to the hexagonal block. The hexagonal block is rotated and pressed against the locking plate by a torque wrench.

[0007] Preferably, a locking screw is installed around the outer screw, and the locking screw is threaded to the outer screw. The locking screw is rotated onto the outer screw and a certain torque is applied for a more secure installation.

[0008] Preferably, an inner threaded hole two is installed on the left side of the locking screw cylinder, and the inner threaded hole two is embedded in the locking screw cylinder.

[0009] Preferably, a locking component is installed inside the second internal threaded hole, and the locking component is threadedly connected to the second internal threaded hole.

[0010] Preferably, the locking component includes a stud and an internal hexagonal slot, and the internal hexagonal slot is installed inside the stud. The internal hexagonal slot drives the stud to rotate into internal threaded hole one and internal threaded hole two. The thread direction of internal threaded hole one, internal threaded hole two and the stud is opposite to the thread direction of the rest of the parts.

[0011] Preferably, an internal threaded hole 1 is installed inside the left end of the gate column body, and the internal threaded hole 1 is embedded with the gate column body. After the locking screw is rotated and installed on the outer screw, the internal threaded hole 1 and the internal threaded hole 2 are aligned.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the tie block body is rotated and installed onto the locking template, a torque wrench is used to press the hexagonal block tightly against the locking template. The rough surface of the friction pad enhances the friction between the two to improve the anti-loosening effect. Subsequently, the locking screw is screwed into the outer screw and a torque is applied. After the first inner thread hole and the second inner thread hole are aligned, the stud is driven into the hole through the internal hexagonal groove. The specially designed reverse thread causes the locking screw to rotate synchronously when the hexagonal block loosens, and the rightward movement of the screw on the stud can lock the hexagonal block in the opposite direction, thus doubly preventing the tie block body from loosening.

[0013] This utility model proposes an anti-loosening mechanism for the gatepost of an injection molding machine. Attached Figure Description Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the combined three-dimensional structure of this utility model.

[0014] In the diagram: 1. Tie column body; 2. Locking template; 3. Internal threaded hole one; 4. Friction pad; 5. Hexagonal block; 6. External threaded barrel; 7. Locking threaded barrel; 8. Internal threaded hole two; 9. Locking assembly; 901. Stud; 902. Internal hexagonal slot. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Example 1 Please see Figures 1-3This utility model provides a technical solution: a locking template 2 is installed on the right side of the periphery of the gatepost body 1, a hexagonal block 5 is installed in the middle of the periphery of the gatepost body 1, a friction pad 4 is installed on the right side of the hexagonal block 5 and the friction pad 4 is welded to the hexagonal block 5, an external screw 6 is installed on the left side of the hexagonal block 5 and the external screw 6 is welded to the hexagonal block 5. After the gatepost body 1 is rotated and installed on the locking template 2, the hexagonal block 5 is rotated and pressed against the locking template 2 by a torque wrench. The rough surface of the friction pad 4 increases the friction between the locking template 2 and the friction pad 4, and the fixing and anti-loosening effect of the hexagonal block 5 is better.

[0017] Example 2 Based on Embodiment 1, a locking screw 7 is installed around the outer screw cylinder 6, and the locking screw 7 is threadedly connected to the outer screw cylinder 6. An internal threaded hole 8 is installed on the left side of the inner side of the locking screw 7, and the internal threaded hole 8 is embedded in the locking screw 7. A locking component 9 is installed inside the internal threaded hole 8, and the locking component 9 is threadedly connected to the internal threaded hole 8. The locking component 9 includes a stud 901 and an internal hexagonal groove 902, and the internal hexagonal groove 902 is installed inside the stud 901. An internal threaded hole 3 is installed inside the left end of the tie rod body 1, and the internal threaded hole 3 is threaded in conjunction with the tie rod body. 1. For the embedded connection, the locking screw 7 is rotated and installed onto the outer screw 6 with a certain torque applied. The inner thread hole 3 and the inner thread hole 8 are aligned. Then, the stud 901 is rotated into the inner thread hole 3 and the inner thread hole 8 through the internal hexagonal groove 902. The thread direction of the inner thread hole 3, the inner thread hole 8 and the stud 901 is opposite to the thread direction of the rest. When the hexagonal block 5 is loosened and rotated, it will synchronously drive the locking screw 7 to rotate. The rotation of the locking screw 7 on the stud 901 will cause the locking screw 7 to move to the right, thereby preventing the hexagonal block 5 from loosening and rotating, and effectively preventing the tie rod body 1 from loosening.

[0018] In actual use, after the gatepost body 1 is precisely installed into the positioning hole of the locking template 2 by rotation, the hexagonal block 5 is progressively locked using a pre-tightening torque wrench. The micro-convex structure of the specially treated surface of the friction pad 4 generates an engagement effect, forming a self-locking static friction pair between the locking template 2 and the friction pad 4, significantly improving axial torsional resistance. Subsequently, the locking screw 7 is screwed into the outer screw 6 and a standard torque is applied. When the phase angles of the inner thread hole 3 and the inner thread hole 8 are completely coincident, the stud 901 is driven into the double holes simultaneously using a special internal hex wrench. At this time, it should be noted that the inner thread hole 3, the inner thread hole 8, and the stud 901 adopt a left-hand thread design, which, together with the right-hand thread of the main body, forms a reverse self-locking mechanism. The core of this anti-loosening system is that when vibration causes the hexagonal block 5 to rotate slightly counterclockwise, it will drive the locking cylinder 7 to rotate synchronously through thread coupling. The movement of the cylinder on the left-hand stud 901 will be converted into axial displacement to the right. This mechanical linkage will press the hexagonal block 5 in the opposite direction to reset it, and finally form a vibration-self-tightening closed-loop feedback mechanism, which fundamentally eliminates the risk of axial displacement of the gatepost body 1.

[0019] 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 anti-loosening mechanism for connectors in injection molding machines, characterized in that: The anti-loosening mechanism for the gatepost of an injection molding machine includes a gatepost body (1) and a hexagonal block (5). A locking template (2) is installed on the right side of the outer periphery of the gatepost body (1). The hexagonal block (5) is installed in the middle of the outer periphery of the gatepost body (1). A friction pad (4) is installed on the right side of the hexagonal block (5), and the friction pad (4) and the hexagonal block (5) are welded together.

2. The anti-loosening mechanism for the gatepost of an injection molding machine according to claim 1, characterized in that: An external screw cylinder (6) is installed on the left side of the hexagonal block (5), and the external screw cylinder (6) and the hexagonal block (5) are welded together.

3. The anti-loosening mechanism for the gatepost of an injection molding machine according to claim 2, characterized in that: A locking screw (7) is installed around the outer screw (6), and the locking screw (7) and the outer screw (6) are connected by threads.

4. The anti-loosening mechanism for a gatepost in an injection molding machine according to claim 3, characterized in that: The locking screw cylinder (7) has an internal threaded hole (8) installed on its left side, and the internal threaded hole (8) and the locking screw cylinder (7) are connected by an embedded connection.

5. The anti-loosening mechanism for a gatepost in an injection molding machine according to claim 4, characterized in that: The locking component (9) is installed inside the second internal threaded hole (8), and the locking component (9) is threadedly connected to the second internal threaded hole (8).

6. The anti-loosening mechanism for a gatepost in an injection molding machine according to claim 5, characterized in that: The locking assembly (9) includes a stud (901) and an internal hexagonal slot (902), and the internal hexagonal slot (902) is installed inside the stud (901).

7. The anti-loosening mechanism for a gatepost in an injection molding machine according to claim 1, characterized in that: The left end of the goring column body (1) is fitted with an internal threaded hole (3), and the internal threaded hole (3) is embedded in the goring column body (1).

Images