Device for quickly replacing mold of injection molding machine

Abstract

The utility model belongs to the technical field of mold replacement devices, and particularly relates to an injection molding machine mold quick replacement device which comprises two lifting ropes, limiting sleeves are slidably connected to the outer walls of the two lifting ropes, base plates are fixedly connected to the bottoms of the two lifting ropes, lifting hooks are rotatably connected to the bottoms of the two base plates, and the lifting hooks are fixedly connected to the lifting ropes. The outer walls of the two lifting ropes are slidably connected with a plurality of section cylinders, through holes are formed in the tops of the section cylinders, the tops of the section cylinders protrude to form inserting parts, and inserting grooves are formed in the bottoms of the section cylinders. According to the utility model, the double-shaft motor runs to respectively wind the lifting rope, in the winding process of the lifting rope, the plurality of section cylinders are mutually extruded, the inserting parts on the two adjacent section cylinders are inserted into the inserting grooves, and the plurality of section cylinders are mutually inserted to form a straight rod structure, so that the swing amplitude in the mold lifting process can be effectively reduced; and the risk of mold collision is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold replacement devices, and more specifically, to a rapid mold replacement device for an injection molding machine. Background Technique

[0002] Injection molding, an advanced molding method that combines injection and molding technologies, is renowned for its excellent production efficiency, high-speed manufacturing process, and highly automated operation capabilities. This method not only ensures that the dimensional accuracy of the products reaches the extreme but also endows the products with the flexibility of rapid iteration, enabling them to easily meet the complex and changing shape requirements. In the automotive manufacturing industry, injection molding technology is widely used in the production of accessories, becoming a key link in improving production efficiency and product quality.

[0003] In the existing technology, as disclosed in the document with the publication number CN221314957U, a mold replacement device for an automotive injection molding machine is specifically disclosed. In this device in the document, the mold is hoisted by steel cables and hooks. However, the soft characteristics of traditional steel cables are likely to cause unnecessary shaking of the mold during the lifting process, thereby increasing the risk of the mold being knocked, which may damage its precise structure and surface quality. For this reason, we propose a rapid mold replacement device for an injection molding machine. Content of the Utility Model

[0004] Based on the above-mentioned technical problem of "in the existing technology, the device hoists the mold by steel cables and hooks, but the soft characteristics of traditional steel cables are likely to cause unnecessary shaking of the mold during the lifting process, thereby increasing the risk of the mold being knocked, which may damage its precise structure and surface quality", the utility model proposes a rapid mold replacement device for an injection molding machine.

[0005] A rapid mold replacement device for an injection molding machine proposed by the utility model includes two lifting ropes. The outer walls of both lifting ropes are slidably connected with limiting sleeves. The bottoms of both lifting ropes are fixedly connected with chassis. The bottoms of both chassis are rotatably connected with hooks. The outer walls of both lifting ropes are slidably connected with a plurality of joint cylinders. A through hole is opened at the top of the joint cylinder, and a plugging portion protrudes from the top of the joint cylinder. A plugging groove is opened at the bottom of the joint cylinder.

[0006] Preferably, it further includes an installation frame. A dual-axis motor is fixedly connected to the inner wall of the installation frame. Output shafts are fixedly connected to both output ends of the dual-axis motor. Reel rollers are fixedly connected to the outer walls of both output shafts. The ends of both lifting ropes pass through the installation frame and extend into its interior. The outer walls of both reel rollers are fixedly connected to the ends of the lifting ropes respectively. The tops of both limiting sleeves are fixedly connected to the bottom of the installation frame.

[0007] Preferably, a plurality of sliding grooves are formed in the outer wall of the joint cylinder, and a plurality of mounting grooves are formed in the outer wall of the joint cylinder. Slide bars are slidably connected to the inner walls of the plurality of sliding grooves. The bottoms of the slide bars all extend into the sliding grooves. Springs are sleeved on the outer walls of the slide bars. Limiting rings are fixedly connected to the circumferential outer walls of the slide bars. Push rings are sleeved on the outer walls of the insertion parts, and the bottoms of the push rings are fixedly connected to the plurality of slide bars respectively.

[0008] Preferably, one end of the spring is fixedly connected to the limiting ring, and the other end of the spring is fixedly connected to the joint cylinder.

[0009] Preferably, two support plates are fixedly connected to the top of the mounting frame. A single-shaft motor is fixedly connected to the outer wall of one of the support plates. Two rotating shafts are rotatably connected between the two support plates. Pressing rollers are fixedly connected to the outer walls of the two rotating shafts. Gears are fixedly connected to the outer walls of the two pressing rollers. The two gears mesh with each other. The output end of the single-shaft motor is fixedly connected to the rotating shaft located below.

[0010] Preferably, it further includes a track. Two sliding holes are formed in the top of the track. The tops of the two support plates all penetrate through the sliding holes and are slidably connected thereto. The two pressing rollers are respectively located above and below the track and are in frictional contact with it.

[0011] The beneficial effects in the present utility model are as follows:

[0012] 1. When hoisting and moving the mold through the lifting hook, the double-shaft motor operates to drive the output shafts to rotate respectively. The winding rollers are driven to rotate through the two output shafts respectively. The hoisting ropes are wound during the rotation of the winding rollers. During the winding process of the hoisting ropes, the plurality of joint cylinders are mutually extruded. At this time, the insertion parts on adjacent two joint cylinders are inserted into the insertion slots. The bottom of the upper joint cylinder exerts extrusion on the push ring, so that the push ring drives the plurality of slide bars to slide along the inner wall of the mounting groove and compress the springs. At this time, the plurality of joint cylinders are mutually inserted to form a straight rod structure, thereby effectively reducing the swinging amplitude during the hoisting of the mold and reducing the risk of the mold being knocked.

[0013] 2. During installation, the double-shaft motor operates to drive the output shafts to rotate in the reverse direction. Under the elastic force of the springs, the upper joint cylinder is extruded through the push ring, so that the adjacent two joint cylinders are separated from each other. At this time, the flexibility of the hoisting ropes can be restored, facilitating the random rotation of the mold and the installation of the mold. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the partial structural schematic diagram of the present utility model;

[0016] Figure 3 is the installation structural schematic diagram of the joint cylinder of the present utility model;

[0017] Figure 4 Schematic diagram of the installation structure of the push ring of the present utility model;

[0018] Figure 5 Schematic diagram of the installation structure of the sliding rod of the present utility model.

[0019] In the figure: 1, installation frame; 2, dual-axis motor; 3, output shaft; 4, winding roller; 5, lifting rope; 6, limiting sleeve; 7, chassis; 8, hook; 9, joint cylinder; 10, through hole; 11, insertion part; 12, insertion slot; 13, sliding groove; 14, installation slot; 15, sliding rod; 16, spring; 17, limiting ring; 18, push ring; 19, track; 20, sliding hole; 21, support plate; 22, single-axis motor; 23, rotating shaft; 24, pressing roller; 25, gear. Specific embodiments

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figure 3 , Figure 4 and Figure 5 shown, a rapid replacement device for an injection mold includes two lifting ropes 5. The outer walls of the two lifting ropes 5 are both slidably connected with limiting sleeves 6. The bottoms of the two lifting ropes 5 are both fixedly connected with chassis 7. The bottoms of the two chassis 7 are both rotatably connected with hooks 8. The outer walls of the two lifting ropes 5 are both slidably connected with a plurality of joint cylinders 9. The tops of the joint cylinders 9 are provided with through holes 10. The tops of the joint cylinders 9 protrude to form insertion parts 11. The bottoms of the joint cylinders 9 are provided with insertion slots 12.

[0022] As Figure 1 shown, it further includes an installation frame 1. The inner wall of the installation frame 1 is fixedly connected with a dual-axis motor 2. Both output ends of the dual-axis motor 2 are fixedly connected with output shafts 3. The outer walls of the two output shafts 3 are both fixedly connected with winding rollers 4. The ends of the two lifting ropes 5 both pass through the installation frame 1 and extend to the inside thereof. The outer walls of the two winding rollers 4 are respectively fixedly connected with the ends of the lifting ropes 5. The tops of the two limiting sleeves 6 are respectively fixedly connected with the bottom of the installation frame 1.

[0023] As Figure 4 and Figure 5As shown, a plurality of sliding grooves 13 are formed in the outer wall of the joint cylinder 9, and a plurality of mounting grooves 14 are formed in the outer wall of the joint cylinder 9. Slide bars 15 are slidably connected to the inner walls of the plurality of sliding grooves 13. The bottoms of the slide bars 15 extend into the sliding grooves 13. Springs 16 are sleeved on the outer walls of the slide bars 15. Limiting rings 17 are fixedly connected to the circumferential outer walls of the slide bars 15. Push rings 18 are sleeved on the outer walls of the insertion portions 11. The bottoms of the push rings 18 are fixedly connected to the plurality of slide bars 15 respectively. One end of the spring 16 is fixedly connected to the limiting ring 17, and the other end of the spring 16 is fixedly connected to the joint cylinder 9.

[0024] As Figure 1 and Figure 2 As shown, two support plates 21 are fixedly connected to the top of the mounting frame 1. A single-shaft motor 22 is fixedly connected to the outer wall of one of the support plates 21. Two rotating shafts 23 are rotatably connected between the two support plates 21. Pressing rollers 24 are fixedly connected to the outer walls of the two rotating shafts 23. Gears 25 are fixedly connected to the outer walls of the two pressing rollers 24. The two gears 25 mesh with each other. The output end of the single-shaft motor 22 is fixedly connected to the rotating shaft 23 located below. When the single-shaft motor 22 operates, the two pressing rollers 24 are driven to rotate through the gears 25, so that the pressing rollers 24 roll along the surface of the track 19, thereby enabling the mold to be moved.

[0025] As Figure 2 As shown, it further includes a track 19. Two sliding holes 20 are formed in the top of the track 19. The tops of the two support plates 21 penetrate through the sliding holes 20 and are slidably connected thereto. The two pressing rollers 24 are respectively located above and below the track 19 and are in frictional contact therewith.

[0026] Working principle: When the mold is hoisted and moved by the lifting hook 8, the double-shaft motor 2 operates to drive the output shafts 3 to rotate respectively. The winding rollers 4 are driven to rotate through the two output shafts 3 respectively. The winding rollers 4 wind the lifting ropes 5. During the winding process of the lifting ropes 5, the plurality of joint cylinders 9 are mutually extruded. At this time, the insertion portions 11 on the adjacent two joint cylinders 9 are inserted into the insertion slots 12. The bottom of the upper joint cylinder 9 presses on the push ring 18, so that the push ring 18 drives the plurality of slide bars 15 to slide along the inner wall of the mounting groove 14 and compress the spring 16. At this time, the plurality of joint cylinders 9 are mutually inserted to form a straight rod structure, thereby effectively reducing the swing amplitude during the hoisting of the mold and reducing the risk of the mold being knocked.

[0027] During installation, the double-shaft motor 2 operates to drive the output shafts 3 to rotate in the reverse direction. Under the elastic force of the spring 16, the upper joint cylinder 9 is pressed by the push ring 18, so that the adjacent two joint cylinders 9 are separated from each other. At this time, the flexibility of the lifting ropes 5 can be restored, facilitating the random rotation of the mold and the installation of the mold.

[0028] The single-shaft motor 22 operates to drive the two pressing rollers 24 to rotate through the gears 25, so that the pressing rollers 24 roll along the surface of the track 19, thereby enabling the mold to be moved.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A rapid replacement device for an injection molding machine die, comprising two lifting ropes (5), characterized in that: The outer walls of the two suspension ropes (5) are both slidably connected with limit sleeves (6). The bottoms of the two suspension ropes (5) are both fixedly connected with chassis (7). The bottoms of the two chassis (7) are both rotatably connected with hooks (8). The outer walls of the two suspension ropes (5) are both slidably connected with a plurality of joint cylinders (9). A through hole (10) is formed at the top of the joint cylinder (9). A plug-in part (11) protrudes from the top of the joint cylinder (9). A plug-in groove (12) is formed at the bottom of the joint cylinder (9).

2. The quick replacement device for the injection molding machine mold according to claim 1, characterized in that: It further includes a mounting frame (1). The inner wall of the mounting frame (1) is fixedly connected with a double-shaft motor (2). Output shafts (3) are fixedly connected to both output ends of the double-shaft motor (2). Winding rollers (4) are fixedly connected to the outer walls of the two output shafts (3). The ends of the two suspension ropes (5) respectively pass through the mounting frame (1) and extend into its interior. The outer walls of the two winding rollers (4) are respectively fixedly connected with the ends of the suspension ropes (5). The tops of the two limit sleeves (6) are respectively fixedly connected with the bottom of the mounting frame (1).

3. The rapid mold change device for an injection molding machine according to claim 2, characterized in that: A plurality of sliding grooves (13) are formed in the outer wall of the joint cylinder (9). A plurality of mounting grooves (14) are formed in the outer wall of the joint cylinder (9). Slide rods (15) are slidably connected to the inner walls of the plurality of sliding grooves (13). The bottoms of the slide rods (15) respectively extend into the sliding grooves (13). Springs (16) are sleeved on the outer walls of the slide rods (15). Limit rings (17) are fixedly connected to the circumferential outer walls of the slide rods (15). Push rings (18) are sleeved on the outer walls of the plug-in parts (11). The bottoms of the push rings (18) are respectively fixedly connected with the plurality of slide rods (15).

4. The rapid replacement device for an injection molding machine mold according to claim 3, characterized in that: One end of the spring (16) is fixedly connected with the limit ring (17), and the other end of the spring (16) is fixedly connected with the joint cylinder (9).

5. The quick die change device for an injection molding machine according to claim 4, characterized in that: Two support plates (21) are fixedly connected to the top of the mounting frame (1). A single-shaft motor (22) is fixedly connected to the outer wall of one of the support plates (21). Two rotating shafts (23) are rotatably connected between the two support plates (21). Pressing rollers (24) are fixedly connected to the outer walls of the two rotating shafts (23). Gears (25) are fixedly connected to the outer walls of the two pressing rollers (24). The two gears (25) are meshed with each other. The output end of the single-shaft motor (22) is fixedly connected with the rotating shaft (23) located below.

6. The rapid replacement device for an injection molding machine mold according to claim 5, characterized in that: It further includes a track (19). Two sliding holes (20) are formed at the top of the track (19). The tops of the two support plates (21) respectively penetrate through the sliding holes (20) and are slidably connected with them. The two pressing rollers (24) are respectively located above and below the track (19) and are in frictional contact with it.

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