Screw head with high sealing and wear resistance

Abstract

The utility model belongs to injection molding machine three small technical field, specifically speaking is high sealing wear -resisting screw rod over glue head three small spare, include: screw rod, adjusting mechanism, dismounting and assembling assembly, the inside of screw rod is provided with first limit groove. The utility model discloses through the limit rod is in order to penetrate third limit groove, second limit groove and first limit groove, so that the limit rod one end penetrates the inside of screw rod, carries out the connection to screw rod, over glue ring and mix and melt ring, and then will seal frame place on the surface of limit rod, so that first jack and second jack are mutually symmetrical, through the push mobile board makes the plug -in rod insert first jack and second jack, then through the round groove will limit piece set up on the surface of bolt rod, subsequently rotates the nut and carries out the limit to plug -in rod, will limit rod fixed in seal frame, conversely rotates the nut and removes the limit of plug -in rod, carries out the dismounting to limit rod, thereby has played the role of convenient maintenance replacement to three small spare.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection molding machine three small parts, specifically the three small parts of the screw glue head with high sealing and wear resistance. Background Technology

[0002] The three small parts of an injection molding machine refer to the key functional components in the screw head assembly, which usually include the glue guide head, glue guide ring, and spacer, also known as the anti-reverse ring and gasket. The surfaces of the three components must be smooth and without dead corners to avoid material accumulation that could lead to black spots or yellowing. They are widely used.

[0003] In the existing technology, there is a cleaning cylinder for a mixing ring, a glue-passing ring, and a check ring of an injection molding machine screw with the publication number CN204773439U. This application heats the three small parts of the mixing ring, glue-passing ring, and check ring in a dedicated heating space to reduce the adhesiveness and facilitate the separation of the three small parts for cleaning them separately. However, after a period of use, employees need to perform a complete inspection of the screw and three small parts. Since the parts cannot be disassembled by restricting the limit rod, the overall disassembly operation is difficult and reduces the efficiency of inspection and maintenance. To address this, we provide a screw glue head and three small parts with high sealing and wear resistance. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problems of maintenance and replacement of the three small parts, as well as the flexible adjustment of the check ring height, a three small parts for the screw over-rubber head with high sealing performance and wear resistance is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: The three small parts of the high-sealing and wear-resistant screw glue head include: The screw has a first limiting groove inside, a connecting rod is fixedly installed on one side of the screw, a second limiting groove is opened on the inner side wall of the connecting rod, and a T-shaped sliding groove is opened on the top inside the connecting rod.

[0006] Preferred options also include: An adjustment mechanism is provided on the surface of the connecting rod for adjusting the height of the check ring.

[0007] Preferably, the adjustment mechanism includes: Multiple first threaded holes are opened at the upper end of the connecting rod. The first threaded holes are internally threaded with first fixing bolts. The surface of the first fixing bolts is threaded with T-shaped sliders through second threaded holes.

[0008] Preferably, the first fixing bolt is threadedly adapted to the first threaded hole and the second threaded hole, and a check ring is fixedly installed at the upper end of the T-shaped slider.

[0009] Preferred options also include: The disassembly and assembly assembly is installed inside the first limiting groove and is used to disassemble and assemble the three small parts.

[0010] Preferably, the disassembly and assembly assembly includes: A limiting rod is disposed inside the first limiting groove, and the front of the limiting rod has the first insertion hole, into which a plug rod is inserted.

[0011] Preferably, a sealing frame is connected to the surface of the insertion rod through a second insertion hole, and a movable plate is fixedly installed at one end of the insertion rod.

[0012] Preferably, a bolt rod is fixedly installed at the other end of the insertion rod, and a limiting piece is connected to the surface of the bolt rod through a circular groove.

[0013] Preferably, a nut is threaded onto the surface of the bolt rod, and a limiting plate is fixedly installed on one side of the limiting rod.

[0014] Preferably, the surface of the limiting rod is connected to an over-rubber ring and a mixing ring respectively through a third limiting groove, and a fourth limiting groove is provided on one side of the mixing ring, and the fourth limiting groove is partially adapted to the limiting sheet.

[0015] The beneficial effects of this utility model are: The disassembly and assembly assembly of this utility model involves a limiting rod that sequentially passes through the third limiting groove, the second limiting groove, and the first limiting groove, with one end of the limiting rod penetrating the interior of the screw rod. This connects the screw rod, the rubber sealing ring, and the mixing ring. A sealing frame is then placed on the surface of the limiting rod, ensuring the first and second insertion holes are symmetrical. Pushing the moving plate allows the insertion rod to be inserted into the first and second insertion holes. A limiting piece is then placed on the surface of the bolt rod via a circular groove. Rotating the nut restricts the insertion rod, fixing it within the sealing frame. Conversely, rotating the nut releases the restriction, allowing the limiting rod to be disassembled. This facilitates the maintenance and replacement of the three small components, shortening maintenance time and improving maintenance efficiency.

[0016] The adjustment mechanism of this utility model drives the T-shaped slider to move stably within the T-shaped groove by pushing the check ring. After the second threaded hole is aligned with the first threaded hole, the T-shaped slider is fixed by rotating the first fixing bolt through the first threaded hole and the second threaded hole in sequence. This achieves flexible adjustment of the height of the check ring, optimizes the positional sealing of the check ring, and reduces melt leakage and material accumulation in dead corners. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a three-dimensional structural view of the adjustment mechanism in this utility model; Figure 4 This is a three-dimensional structural view of the disassembly and assembly components in this utility model; Legend: 1. Screw; 2. First limiting groove; 3. Connecting rod; 4. Second limiting groove; 5. T-shaped slide groove; 6. Adjustment mechanism; 601. First threaded hole; 602. First fixing bolt; 603. Second threaded hole; 604. T-shaped slider; 605. Check ring; 7. Disassembly and assembly of components; 701, limiting rod; 702, first insertion hole; 703, insertion rod; 704, second insertion hole; 705, sealing frame; 706, moving plate; 707, bolt rod; 708, circular groove; 709, limiting piece; 710, nut; 711, limiting plate; 712, third limiting groove; 713, rubber ring; 714, mixing ring; 715, fourth limiting groove. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below. Example

[0020] Please see Figures 1 to 4 This utility model provides three small parts for a screw glue-applying head with high sealing and wear resistance, including: The screw 1 has a first limiting groove 2 inside. A connecting rod 3 is fixedly installed on one side of the screw 1. A second limiting groove 4 is opened on the inner side wall of the connecting rod 3. A T-shaped sliding groove 5 is opened on the top inside the connecting rod 3. An adjusting mechanism 6 is set on the surface of the connecting rod 3 for adjusting the height of the check ring 605. The disassembly and assembly assembly 7 is installed inside the first limiting groove 2 for disassembling and assembling the three small parts.

[0021] In this embodiment, the surface of the rubber ring 713 is inclined to increase the contact area and reduce material accumulation in dead corners. The surface of the mixing ring 714 is nitrided to increase its wear resistance. The height of the check ring 605 is adjusted by the adjustment mechanism 6, which optimizes the sealing of the check ring 605 and reduces melt leakage and material accumulation in dead corners. Then, the maintenance and replacement of the three small parts are achieved by disassembling and assembling the assembly 7, which shortens the maintenance time and improves the maintenance efficiency. Example

[0022] Based on Example 1, the adjustment mechanism 6 is further disclosed.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the adjustment mechanism 6 includes: Multiple first threaded holes 601 are opened on the upper end of the connecting rod 3. The first threaded holes 601 are internally threaded with first fixing bolts 602. The surface of the first fixing bolts 602 is threaded with T-shaped sliders 604 through second threaded holes 603. The first fixing bolts 602 are threadedly matched with the first threaded holes 601 and the second threaded holes 603. A check ring 605 is fixedly installed on the upper end of the T-shaped sliders 604.

[0024] In this embodiment, pushing the check ring 605 causes the T-shaped slider 604 to move stably within the T-shaped groove 5, so that the second threaded hole 603 corresponds vertically to the first threaded hole 601. Then, rotating the first fixing bolt 602 through the first threaded hole 601 and into the second threaded hole 603 fixes the T-shaped slider 604. This facilitates the adjustment of the height of the check ring 605, optimizes the positional sealing of the check ring 605, and reduces melt leakage and dead zone material accumulation. Example

[0025] Based on Example 1, the disassembly and assembly component 7 is further disclosed.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the disassembly and assembly component 7 includes: A limiting rod 701 is disposed inside the first limiting groove 2. A first insertion hole 702 is opened on the front of the limiting rod 701. An insertion rod 703 is inserted into the first insertion hole 702. A sealing frame 705 is connected to the surface of the insertion rod 703 through a second insertion hole 704. A movable plate 706 is fixedly installed at one end of the insertion rod 703. A bolt rod 707 is fixedly installed at the other end of the insertion rod 703. A limiting piece 709 is connected to the surface of the bolt rod 707 through a circular groove 708. A threaded screw is connected to the surface of the bolt rod 707. The mother 710 has a limiting plate 711 fixedly installed on one side of the limiting rod 701. The surface of the limiting rod 701 is connected to the rubber ring 713 and the mixing ring 714 respectively through the third limiting groove 712. The surface of the rubber ring 713 is inclined, which can increase the contact area and reduce the accumulation of dead corners, thus avoiding melt leakage during injection. The surface of the mixing ring 714 is nitrided to increase its wear resistance. A fourth limiting groove 715 is opened on one side of the mixing ring 714, and the fourth limiting groove 715 is partially adapted to the limiting plate 709.

[0027] In this embodiment, the limiting rod 701 passes sequentially through the third limiting groove 712, the second limiting groove 4, and the first limiting groove 2, so that one end of the limiting rod 701 passes through the interior of the screw 1, connecting the screw 1, the rubber ring 713, and the mixing ring 714. Then, the sealing frame 705 is placed on the surface of the limiting rod 701, making the first insertion hole 702 and the second insertion hole 704 symmetrical. By pushing the moving plate 706, the insertion rod 703 is inserted into the first insertion hole 702 and the second insertion hole 704. Then, the limiting piece 709 is placed on the surface of the bolt rod 707 through the circular groove 708. Subsequently, the nut 710 is rotated to limit the insertion rod 703 and fix the limiting rod 701 in the sealing frame 705. Conversely, rotating the nut 710 releases the limitation of the insertion rod 703 and allows the limiting rod 701 to be disassembled. This facilitates the maintenance and replacement of the three small parts, shortens maintenance time, and improves maintenance efficiency.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A three-part screw glue-applying head with high sealing and wear resistance, characterized in that: include: The screw (1) has a first limiting groove (2) inside, and a connecting rod (3) is fixedly installed on one side of the screw (1). The inner side wall of the connecting rod (3) has a second limiting groove (4), and the top of the connecting rod (3) has a T-shaped sliding groove (5). Disassembly and assembly assembly (7) is installed inside the first limiting groove (2) and is used to disassemble and assemble the three small parts; The disassembly and assembly assembly (7) includes: A limiting rod (701) is disposed inside the first limiting groove (2). A first insertion hole (702) is provided on the front of the limiting rod (701). A plug rod (703) is inserted into the first insertion hole (702). A sealing frame (705) is connected to the surface of the plug rod (703) through a second insertion hole (704). A movable plate (706) is fixedly installed at one end of the plug rod (703), and a bolt rod (707) is fixedly installed at the other end of the plug rod (703). The surface of the bolt rod (707) is... A limiting plate (709) is connected to the surface of the bolt rod (707) via a circular groove (708). A nut (710) is threaded onto the surface of the bolt rod (707). A limiting plate (711) is fixedly installed on one side of the limiting rod (701). A rubber ring (713) and a mixing ring (714) are respectively connected to the surface of the limiting rod (701) via a third limiting groove (712). A fourth limiting groove (715) is provided on one side of the mixing ring (714), and the fourth limiting groove (715) is partially adapted to the limiting plate (709).

2. The three small parts of the screw glue-applying head with high sealing and wear resistance according to claim 1, characterized in that: Also includes: Adjustment mechanism (6), which is disposed on the surface of connecting rod (3), is used to adjust the height of check ring (605).

3. The three small parts of the screw glue-applying head with high sealing and wear resistance according to claim 2, characterized in that: The adjustment mechanism (6) includes: Multiple first threaded holes (601) are opened on the upper end of the connecting rod (3). The first threaded holes (601) are threaded with first fixing bolts (602). The surface of the first fixing bolts (602) is threaded with T-shaped sliders (604) through second threaded holes (603).

4. The three small parts of the screw glue-applying head with high sealing and wear resistance according to claim 3, characterized in that: The first fixing bolt (602) is threadedly adapted to the first threaded hole (601) and the second threaded hole (603), and a check ring (605) is fixedly installed on the upper end of the T-shaped slider (604).

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