Adjustable corinthian column for large injection molding machine

Abstract

The utility model relates to the technical field of column, concretely is a kind of adjustable column of large -scale injection molding machine, it includes: adjustable column, adjustable column is inserted in first through-hole, second through-hole and third through-hole, and fixed on fixed mould limit rod installation plug-in seat, and limit rod installation plug-in seat is opened in limit rod plug-in hole;Beneficial effect is: the end of the end of the one end of adjustable column originally inserted in first through-hole is moved to second through-hole, i.e. adjustable column can be adjusted and opened from the space between movable mould and fixed mould, so that injection mould can be directly moved from the side of injection molding machine body by hoisting equipment, so that when replacing injection mould, the hoisting time of injection mould is greatly shortened, the replacement efficiency of injection mould is accelerated, the height requirement of hoisting equipment is also reduced, and then the construction height demand of workshop is reduced, greatly save the construction cost of workshop.

Description

Technical Field

[0001] This utility model relates to the field of tie rods, specifically an adjustable tie rod for a large injection molding machine. Background Technology

[0002] In injection molding machines, the gatepost is the core load-bearing component of the mold clamping system. Its strength and precision directly affect the mold clamping performance and product quality. The injection molding machine body has a fixed mold plate and an adjusting mold plate, and a moving mold plate is slidably connected to the machine body. The fixed mold plate, moving mold plate, and adjusting mold plate are respectively provided with a first through hole, a second through hole, and a third through hole. The two ends of the gatepost are inserted and fixed in the first and third through holes, respectively, and the middle end of the gatepost is inserted in the second through hole. When the mold clamping system closes and opens, the second through hole and the gatepost guide the movement of the moving mold plate and bear the weight of the moving mold plate. At the same time, when the hydraulic linkage mechanism fixed on the adjusting mold plate drives the moving mold plate to close, the tension brought about by the mold closing is also placed on the gatepost.

[0003] In existing technology, gateposts are distributed around the injection mold. With the emergence of large injection molded products, the injection volume and clamping force of the injection molding machine have increased accordingly, and the size of the injection molding machine has also become larger. As the size of the injection molding machine increases, the height requirements for the hoisting equipment in the workshop also increase, so as to lift the injection mold upwards until it is higher than the height of all the gateposts, and then move the injection mold laterally to achieve mold replacement.

[0004] However, the high requirements for hoisting equipment height place greater demands on the construction height of the workshop. The increase in workshop height not only significantly increases the construction cost of the workshop, but also leads to longer hoisting times for injection mold replacement, reducing the efficiency of injection mold replacement. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable gate column for a large injection molding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable gatepost for a large injection molding machine, comprising: an adjustable gatepost movably connected to the injection molding machine body; a fixed mold and an adjusting mold fixed on the injection molding machine body; a movable mold slidably connected to the injection molding machine body; a first through hole on the fixed mold; a second through hole on the movable mold; and a third through hole on the adjusting mold. The adjustable gatepost is movably inserted into the first, second, and third through holes. A limit rod mounting socket is fixed on the fixed mold, and a limit rod mounting socket has a limit rod insertion hole. A limit hole is formed on the injection molding machine body, and the middle section of the limit rod is movably inserted into the limit rod mounting socket. The bottom end of the limit rod is movably inserted into the limit hole.

[0007] Preferably, the top end of the mounting socket of the limiting rod is fixed with a screw seat, the top end of the screw seat is rotatably connected to a driven gear, the driven gear has a threaded hole, the top end of the limiting rod is rotatably connected to the threaded hole, the top end of the limiting rod has an external thread, the wall of the threaded hole has an internal thread, and the internal thread of the threaded hole mates with the external thread of the limiting rod.

[0008] Preferably, the screw seat has an annular plate structure, a slider is fixed on the inner ring of the screw seat, and a groove is provided on the rod of the limiting rod, with the slider slidably connected in the groove.

[0009] Preferably, a servo motor is fixed on the fixed mold, a collar is sleeved and fixed on the drive shaft of the servo motor, and a drive gear is movably sleeved on the drive shaft of the servo motor, with the bottom end of the drive gear abutting the top end of the collar.

[0010] Preferably, the top end of the drive shaft of the servo motor is provided with a screw hole, and a screw is installed in the screw hole by a threaded connection, with the bottom end of the screw nut abutting against the top end of the drive gear.

[0011] Preferably, the drive gear has a first keyway, the drive shaft of the servo motor has a second keyway, one end of a flat key is movably inserted into the second keyway, and the other end of the flat key is movably inserted into the first keyway.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The adjustable gatepost of this utility model for a large injection molding machine allows the limiting rod to move upward and retract from the limiting hole. This allows the adjustable gatepost to be pushed out of the first through hole, and the end of the adjustable gatepost originally inserted in the first through hole to move into the second through hole. This opens the space between the driven mold and the stationary mold, enabling the injection mold to be moved directly from the side of the injection molding machine body using hoisting equipment. This significantly reduces the hoisting time for mold replacement, speeds up mold replacement efficiency, and lowers the height requirements of the hoisting equipment, thereby reducing the height requirements of the workshop and greatly saving construction costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0014] In the diagram: 1. Adjustable gatepost; 2. Injection molding machine body; 3. Moving mold; 4. Fixed mold; 5. Limit rod mounting connector; 6. Limit rod insertion hole; 7. Limit hole; 8. Limit rod; 9. Screw seat; 10. Driven gear; 11. Threaded hole; 12. Servo motor; 13. Driven gear; 14. Adjustable template; 15. First through hole; 16. Second through hole; 17. Third through hole; 18. Sliding groove; 19. Sliding block; 20. First keyway; 21. Second keyway; 22. Flat key; 23. Threaded hole; 24. Screw; 25. Collar. 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 refer to Figures 1-4 This utility model provides a technical solution: an adjustable gatepost for a large injection molding machine, comprising: an adjustable gatepost 1, which is movably connected to the injection molding machine body 2. A fixed mold 4 and an adjusting mold plate 14 are fixed on the injection molding machine body 2. A movable mold 3 is slidably connected to the injection molding machine body 2. A first through hole 15 is provided on the fixed mold 4, a second through hole 16 is provided on the movable mold 3, and a third through hole 17 is provided on the adjusting mold plate 14. The adjustable gatepost 1 is movably inserted into the first through hole 15, the second through hole 16, and the third through hole 17. A limit rod mounting socket 5 is fixed on the fixed mold 4. A limit rod mounting socket 5 has a limit rod insertion hole 6. A limit hole 7 is provided on the injection molding machine body 2. The middle section of the limit rod 8 is movably inserted into the limit rod mounting socket 5, and the bottom end of the limit rod 8 is movably inserted into the limit hole 7.

[0017] The limiting rod 8 is moved upward to disengage from the limiting hole 7, and then the adjustable gatepost 1 is pushed to disengage from the first through hole 15. The end of the adjustable gatepost 1 that was originally inserted into the first through hole 15 is moved to the second through hole 16, thus opening the space between the driven mold 3 and the fixed mold 4. In this way, the injection mold can be moved directly from the side of the injection molding machine body 2 by the hoisting equipment. This greatly shortens the hoisting time of the injection mold when changing it, speeds up the change efficiency of the injection mold, and also reduces the height requirements of the hoisting equipment, thereby reducing the construction height requirements of the workshop and greatly saving the construction cost of the workshop.

[0018] Example 2: Based on Example 1, in order to control the movement of the limit rod 8, a servo motor 12 is fixed on the fixed mold 4, a screw seat 9 is fixed at the top of the limit rod mounting connector 5, a driven gear 10 is rotatably connected to the top of the screw seat 9, a threaded hole 11 is opened on the driven gear 10, the top of the limit rod 8 is rotatably connected in the threaded hole 11, the top of the limit rod 8 is provided with an external thread, the hole wall of the threaded hole 11 is provided with an internal thread, the internal thread of the threaded hole 11 is engaged with the external thread of the limit rod 8, the screw seat 9 is a ring plate structure, a slider 19 is fixed on the inner ring of the screw seat 9, a sliding groove 18 is opened on the rod of the limit rod 8, the slider 19 is slidably connected in the sliding groove 18, and a drive gear 13 is movably sleeved on the drive shaft of the servo motor 12.

[0019] When the servo motor 12 is powered on, the drive shaft of the servo motor 12 drives the drive gear 13 to rotate. The drive gear 13 meshes with the driven gear 10, thereby driving the driven gear 10 to rotate. When the driven gear 10 rotates, under the guidance of the slider 19 fixed on the screw seat 9 and the slide groove 18, the limit rod 8 can only move up and down, but cannot move in the circumferential direction. Then, under the threaded connection between the limit rod 8 and the threaded hole 11, the limit rod 8 moves up and down. The direction of movement of the limit rod 8 is determined by the rotation direction of the drive shaft of the servo motor 12.

[0020] Example 3: Based on Example 2, in order to enable the drive gear 13 to rotate following the drive shaft of the servo motor 12 and to position the height of the drive gear 13 on the drive shaft of the servo motor 12, a collar 25 is fixedly fitted on the drive shaft of the servo motor 12, the bottom end of the drive gear 13 abuts against the top end of the collar 25, a screw hole 23 is opened at the top end of the drive shaft of the servo motor 12, and a screw 24 is installed in the screw hole 23 by threaded connection, the bottom end of the nut of the screw 24 abuts against the top end of the drive gear 13, a first keyway 20 is opened on the drive gear 13, and a second keyway 21 is opened on the drive shaft of the servo motor 12, one end of a flat key 22 is movably inserted into the second keyway 21, and the other end of the flat key 22 is movably inserted into the first keyway 20.

[0021] A collar 25 is fixed on the drive shaft of the servo motor 12. After the drive gear 13 is fitted onto the drive shaft of the servo motor 12, the top end of the collar 25 abuts against the bottom end of the drive gear 13, thereby limiting the minimum height of the drive gear 13 on the drive shaft of the servo motor 12. After the screw 24 is installed in the screw hole 23 through a threaded connection, the bottom end of the screw 24 abuts against the top end of the drive gear 13, thereby limiting the maximum height of the drive gear 13 on the drive shaft of the servo motor 12, thus realizing the control of the drive gear 13 on the drive shaft. The height of the drive shaft of the servo motor 12 is used for positioning; before installing the screw 24 into the screw hole 23, the first keyway 20 and the second keyway 21 are aligned, and the flat key 22 is inserted into the first keyway 20 and the second keyway 21. When the drive shaft of the servo motor 12 rotates, the inner wall of the second keyway 21 pushes the flat key 22 to rotate, and the flat key 22 pushes the inner wall of the first keyway 20, so that the first keyway 20 follows the flat key 22 to rotate, thereby enabling the drive gear 13 to rotate with the drive shaft of the servo motor 12.

[0022] In actual use, when the servo motor 12 is powered on, the drive shaft of the servo motor 12 drives the drive gear 13 to rotate. The drive gear 13 meshes with the driven gear 10, thereby driving the driven gear 10 to rotate. When the driven gear 10 rotates, under the guidance of the slider 19 fixed on the screw seat 9 and the slide groove 18, the limit rod 8 can only move up and down, but cannot move circumferentially. Then, under the threaded connection between the limit rod 8 and the threaded hole 11, the limit rod 8 moves up and down. When the limit rod 8 moves upward and exits from the limit hole 7, the adjustable gatepost 1 can be pushed, allowing the adjustable gatepost 1 to move. The adjustable mold insert 1 is withdrawn from the first through hole 15, and the end of the adjustable mold insert 1 that was originally inserted into the first through hole 15 is moved to the second through hole 16. This opens up the space between the driven mold 3 and the fixed mold 4. In this way, the injection mold can be moved directly from the side of the injection molding machine body 2 by the hoisting equipment. This greatly shortens the hoisting time of the injection mold when changing the injection mold, speeds up the change of the injection mold, and also reduces the height requirements of the hoisting equipment, thereby reducing the construction height requirements of the workshop and greatly saving the construction cost of the workshop.

[0023] 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 adjustable gatepost for a large injection molding machine, comprising: An adjustable gatepost (1) is movably connected to the injection molding machine body (2). A fixed mold (4) and an adjusting mold plate (14) are fixed on the injection molding machine body (2). A movable mold (3) is slidably connected to the injection molding machine body (2). A first through hole (15) is opened on the fixed mold (4), a second through hole (16) is opened on the movable mold (3), and a third through hole (17) is opened on the adjusting mold plate (14). The adjustable gatepost (1) is characterized in that: The limit rod is movably inserted into the first through hole (15), the second through hole (16) and the third through hole (17). The limit rod mounting socket (5) is fixed on the mold (4). The limit rod mounting socket (5) has a limit rod insertion hole (6). The injection molding machine body (2) has a limit hole (7). The middle section of the limit rod (8) is movably inserted into the limit rod mounting socket (5). The bottom end of the limit rod (8) is movably inserted into the limit hole (7).

2. The adjustable gatepost of a large injection molding machine according to claim 1, characterized in that: The top of the mounting socket (5) of the limiting rod is fixed with a screw seat (9), and the top of the screw seat (9) is rotatably connected to a driven gear (10). The driven gear (10) has a threaded hole (11). The top of the rod body of the limiting rod (8) is rotatably connected in the threaded hole (11). The top of the rod body of the limiting rod (8) has an external thread, and the hole wall of the threaded hole (11) has an internal thread. The internal thread of the threaded hole (11) is engaged with the external thread of the limiting rod (8).

3. The adjustable gatepost of a large injection molding machine according to claim 2, characterized in that: The screw seat (9) has an annular plate structure. A slider (19) is fixed on the inner ring of the screw seat (9). A groove (18) is opened on the rod of the limiting rod (8). The slider (19) is slidably connected in the groove (18).

4. The adjustable gatepost of a large injection molding machine according to claim 2, characterized in that: A servo motor (12) is fixed on the fixed mold (4). A collar (25) is fixed on the transmission shaft of the servo motor (12). A drive gear (13) is movably sleeved on the transmission shaft of the servo motor (12). The bottom end of the drive gear (13) abuts against the top end of the collar (25).

5. The adjustable gatepost of a large injection molding machine according to claim 4, characterized in that: The drive shaft of the servo motor (12) has a screw hole (23) at the top. A screw (24) is installed in the screw hole (23) by threaded connection. The bottom end of the nut of the screw (24) abuts against the top of the drive gear (13).

6. The adjustable gatepost of a large injection molding machine according to claim 5, characterized in that: The drive gear (13) has a first keyway (20), and the drive shaft of the servo motor (12) has a second keyway (21). One end of a flat key (22) is movably inserted into the second keyway (21), and the other end of the flat key (22) is movably inserted into the first keyway (20).

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