Vertical curved arm injection molding machine

Abstract

The utility model discloses a vertical type curved arm injection molding machine, include: control cabinet, be provided with injection mold in the control cabinet, injection mold contains injection molding subassembly, movable die lifting drive component, mold cylinder machine column and lower fixed die, wherein lower fixed die fixedly set, and lower fixed die four corners place slide through mold cylinder machine column, and the lower part fixed connection movable die lifting drive component of mold cylinder machine column, and the upper end fixed connection injection molding subassembly of mold cylinder machine column, and injection molding subassembly contains upper movable die, and upper movable die fixed mounting is in the upper end of mold cylinder machine column, and movable die lifting drive component contains curved arm mechanism, and the upper end articulates lower fixed die of curved arm mechanism, and the lower end articulates lifting seat of curved arm mechanism, and lifting seat fixed connection mold cylinder machine column. The utility model makes the curved arm mechanism after closing die through mechanical action, and the stability of closing die is greatly promoted.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically a vertical articulated boom 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 vertical injection molding machines mainly fall into two structural categories. One type uses the thrust of a hydraulic cylinder to lock the mold, with the lower mold stationary and the upper mold moving up and down. This method requires less force to lock the mold, resulting in a high failure rate and low production efficiency. The other type is a crank arm locking structure, where the upper mold is fixed and the lower mold platen moves up and down. This method cannot accommodate mold slides or turntables.

[0004] Therefore, we propose a vertical articulated boom injection molding machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a vertical articulated boom injection molding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vertical articulated boom injection molding machine, comprising: a control cabinet, wherein an injection mold is disposed within the control cabinet, the injection mold comprising an injection assembly, a moving mold lifting drive assembly, a mold cylinder column, and a lower fixed mold, wherein the lower fixed mold is fixedly disposed, and the mold cylinder column is slidably penetrated at the four corners of the lower fixed mold, the moving mold lifting drive assembly is fixedly connected to the lower part of the mold cylinder column, and the injection assembly is fixedly connected to the upper end of the mold cylinder column, the injection assembly comprising an upper moving mold, the upper moving mold being fixedly installed on the upper end of the mold cylinder column;

[0007] The moving mold lifting drive assembly includes a crank arm mechanism, with the upper end of the crank arm mechanism hinged to the lower fixed mold and the lower end of the crank arm mechanism hinged to the lifting seat, which is fixedly connected to the mold cylinder column.

[0008] The articulated arm mechanism includes a first linkage arm, a second linkage arm, a drive link, and a central cross. Several pairs of first linkage arms are arranged on both sides of the central cross. The upper end of the first linkage arm is hinged to the second linkage arm, and the lower end is hinged to the lifting seat. The upper end of the second linkage arm is hinged to the lower fixed mold. The middle of the first linkage arm is rotatably connected to the drive link. The drive link is rotatably connected to the central cross. The central cross is connected to the telescopic end of the mold cylinder assembly.

[0009] The mold cylinder assembly is centrally located below the lifting seat. Its telescopic rod moves through the lifting seat and is fixedly connected to the central cross. Guide components are symmetrically installed on the central cross, and the ends of the guide components are sleeved on the mold cylinder machine column.

[0010] The lower end of the mold cylinder column is equipped with a mold adjustment structure to adjust the height of the lifting seat relative to the mold cylinder column.

[0011] Preferably, the mold adjustment structure includes a mold adjustment oil motor, a gear disk, and a driven gear. The mold adjustment oil motor is fixedly installed on the side of the lifting seat, the gear disk is rotatably installed on the bottom surface of the lifting seat, and the driven gear is rotatably installed on the bottom surface of the lifting seat, with the driven gear threaded onto the mold cylinder column.

[0012] Preferably, a seat cylinder guide post is fixedly installed on the upper moving mold, the seat cylinder guide post is fixedly and through-connected to the hopper fixing plate, the part of the seat cylinder guide post located above the hopper fixing plate is slidably connected to the lifting platform, and the injection cylinder assembly is symmetrically installed between the lifting platform and the hopper fixing plate, the injection cylinder assembly drives the lifting platform to rise and fall relative to the hopper fixing plate.

[0013] Preferably, a heating injection molding structure is fixedly installed in the middle of the lifting platform. The heating injection molding structure moves through the hopper fixing plate and connects with the upper moving mold. The upper part of the heating injection molding structure is connected to the upper hopper.

[0014] Preferably, an ejector cylinder is fixedly installed at the center of the lower surface of the lower mold, and the telescopic end of the ejector cylinder moves through the upper surface of the lower mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The telescopic end of the mold cylinder assembly retracts inward, driving the central cross to descend. The central cross then pushes the first and second linkage arms to unfold via the drive linkage, thereby causing the lifting seat to descend. The lifting seat, through the mold cylinder column, drives the upper moving mold to descend and close with the lower fixed mold. This allows the curved arm mechanism to significantly improve the stability of mold closing through mechanical action after mold closing. This method can be further enhanced by adding a mold slide plate and turntable to improve flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the injection mold and the casing in this utility model;

[0019] Figure 3 This is a schematic diagram of the injection mold in this utility model;

[0020] Figure 4 This is a schematic diagram of the lower mold and its structure below in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the moving mold lifting drive assembly in this utility model.

[0022] In the diagram: 1. Control cabinet; 2. Injection mold; 21. Injection assembly; 211. Upper moving mold; 212. Injection cylinder guide post; 213. Injection cylinder assembly; 214. Loading hopper; 215. Hopper fixing plate; 216. Lifting platform; 217. Heated injection structure; 22. Moving mold lifting drive assembly; 221. Crank arm mechanism; 2211. First linkage arm; 2212. Second linkage arm; 2213. Drive linkage; 2214. Central cross; 2215. Guide assembly; 222. Lifting seat; 224. Mold cylinder assembly; 225. Mold adjustment structure; 2251. Mold adjustment oil motor; 2252. Gear disk; 2253. Driven gear; 3. Mold cylinder machine column; 4. Lower fixed mold; 5. Ejector cylinder. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a vertical articulated boom injection molding machine, comprising: a control cabinet 1, an injection mold 2 disposed inside the control cabinet 1, the injection mold 2 comprising an injection assembly 21, a moving mold lifting drive assembly 22, a mold cylinder column 3, and a lower fixed mold 4, wherein the lower fixed mold 4 is fixedly disposed, and the mold cylinder column 3 is slidably penetrated at the four corners of the lower fixed mold 4. The moving mold lifting drive assembly 22 is fixedly connected to the lower part of the mold cylinder column 3, and the injection assembly 21 is fixedly connected to the upper end of the mold cylinder column 3. The injection assembly 21 comprises an upper moving mold 211, which is fixedly installed on the upper end of the mold cylinder column 3. The moving mold lifting drive assembly 22 drives the mold cylinder column 3 to rise and fall, thereby driving the upper moving mold 211 to press down and close with the lower fixed mold 4. Then, the injection assembly 21 injects raw material to complete the injection molding.

[0025] The moving mold lifting drive assembly 22 includes a crank arm mechanism 221. The upper end of the crank arm mechanism 221 is hinged to the lower fixed mold 4, and the lower end of the crank arm mechanism 221 is hinged to the lifting seat 222. The lifting seat 222 is fixedly connected to the mold cylinder column 3. By driving the crank arm mechanism 221 to fold and retract, the lifting seat 222 is pushed to descend relative to the lower fixed mold 4, which in turn drives the mold cylinder column 3 to descend, thereby driving the upper moving mold 211 to descend and close with the lower fixed mold 4. The crank arm mechanism 221 makes the mold closing more stable and firm.

[0026] Specifically, the articulated arm mechanism 221 includes a first linkage arm 2211, a second linkage arm 2212, a drive link 2213, and a central cross 2214. Several pairs of first linkage arms 2211 are arranged on both sides of the central cross 2214. The upper end of the first linkage arm 2211 is hinged to the second linkage arm 2212, and the lower end is hinged to the lifting seat 222. The upper end of the second linkage arm 2212 is hinged to the lower fixed mold 4. The drive link 2213 is rotatably connected in the middle of the first linkage arm 2211. The drive link 2213 is rotatably connected to the central cross 2214. The central cross 2214 is connected to the telescopic end of the mold cylinder assembly 224. The mold cylinder assembly 224 drives the central cross 2214 to rise and fall, so that the drive link 2213 drives the first linkage arm 2211 and the second linkage arm 2212 to retract, fold, or extend, thereby pulling the lifting seat 222 to rise and fall.

[0027] The mold cylinder assembly 224 is centrally located below the lifting seat 222. Its telescopic rod moves through the lifting seat 222 and is fixedly connected to the central cross 2214. Guide components 2215 are symmetrically installed on the central cross 2214. The end of the guide component 2215 is sleeved on the mold cylinder machine column 3 to realize the lifting and guiding of the central cross 2214.

[0028] The lower end of the mold cylinder column 3 is equipped with a mold adjustment structure 225 to adjust the height of the lifting seat 222 relative to the mold cylinder column 3, which is suitable for molds of different heights.

[0029] The mold adjustment structure 225 includes a mold adjustment oil motor 2251, a gear disk 2252, and a driven gear 2253. The mold adjustment oil motor 2251 is fixedly installed on the side of the lifting seat 222. The gear disk 2252 is rotatably installed on the bottom surface of the lifting seat 222. The driven gear 2253 is rotatably installed on the bottom surface of the lifting seat 222 and is threaded onto the mold cylinder column 3. The mold adjustment oil motor 2251 drives the gear disk 2252 to rotate, which in turn drives the driven gear 2253 to rotate. By utilizing the threaded engagement between the driven gear 2253 and the mold cylinder column 3, the position of the mold cylinder column 3 relative to the lifting seat 222 can be adjusted, thereby adjusting the height of the upper moving mold 211.

[0030] A seat cylinder guide post 212 is fixedly installed on the upper moving mold 211. The seat cylinder guide post 212 is fixedly connected to the hopper fixing plate 215 through the mold. The part of the seat cylinder guide post 212 located above the hopper fixing plate 215 is slidably connected to the lifting platform 216. The injection cylinder assembly 213 is symmetrically installed between the lifting platform 216 and the hopper fixing plate 215. The injection cylinder assembly 213 drives the lifting platform 216 to rise and fall relative to the hopper fixing plate 215.

[0031] The lifting platform 216 has a fixed heating injection structure 217 installed in the middle. The heating injection structure 217 moves through the hopper fixing plate 215 and then docks with the upper moving mold 211. The heating injection structure 217 is connected to the upper hopper 214.

[0032] A pin cylinder 5 is fixedly installed at the center of the lower surface of the lower mold 4. The telescopic end of the pin cylinder 5 extends through the upper surface of the lower mold 4 to lift the mold body on the upper surface of the lower mold 4.

[0033] Working principle: The telescopic end of the mold cylinder assembly 224 retracts inward, driving the central cross 2214 to descend. The central cross 2214 pushes the first linkage arm 2211 and the second linkage arm 2212 to unfold through the drive linkage 2213, thereby driving the lifting seat 222 to descend. The lifting seat 222 drives the upper moving mold 211 to descend and close with the lower fixed mold 4 through the mold cylinder column 3. Then, the injection cylinder assembly 213 drives the lifting platform 216 to descend, driving the heating injection structure 217 to descend and connect with the injection port of the upper moving mold 211, heating and melting the material from the feed hopper 214, and then injecting it into the mold.

[0034] After injection molding is completed, the injection cylinder assembly 213 drives the lifting platform 216 to rise, the heating injection structure 217 rises and resets, and then the mold cylinder assembly 224 drives the central cross 2214 to rise, pulling the crank arm mechanism 221 to fold and retract, realizing the rise of the mold cylinder column 3, which drives the upper moving mold 211 to separate from the lower fixed mold 4.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] 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. A vertical articulated boom injection molding machine, comprising: A control cabinet (1) is provided with an injection mold (2), characterized in that: the injection mold (2) includes an injection assembly (21), a moving mold lifting drive assembly (22), a mold cylinder column (3) and a lower fixed mold (4), wherein the lower fixed mold (4) is fixedly installed, and the lower fixed mold (4) slides through the mold cylinder column (3) at the four corners. The lower part of the mold cylinder column (3) is fixedly connected to the moving mold lifting drive assembly (22), and the upper end of the mold cylinder column (3) is fixedly connected to the injection assembly (21). The injection assembly (21) includes an upper moving mold (211), and the upper moving mold (211) is fixedly installed on the upper end of the mold cylinder column (3). The moving mold lifting drive assembly (22) includes a crank arm mechanism (221), the upper end of the crank arm mechanism (221) is hinged to the lower fixed mold (4), the lower end of the crank arm mechanism (221) is hinged to the lifting seat (222), and the lifting seat (222) is fixedly connected to the mold cylinder column (3). The articulated arm mechanism (221) includes a first linkage arm (2211), a second linkage arm (2212), a drive link (2213), and a central cross (2214). The first linkage arm (2211) is arranged in several pairs on both sides of the central cross (2214). The upper end of the first linkage arm (2211) is hinged to the second linkage arm (2212), and the lower end is hinged to the lifting seat (222). The upper end of the second linkage arm (2212) is hinged to the lower fixed mold (4). The drive link (2213) is rotatably connected in the middle of the first linkage arm (2211). The drive link (2213) is rotatably connected to the central cross (2214). The central cross (2214) is connected to the telescopic end of the mold cylinder assembly (224). The mold cylinder assembly (224) is centrally located below the lifting seat (222). Its telescopic rod moves through the lifting seat (222) and is fixedly connected to the central cross (2214). Guide components (2215) are symmetrically installed on the central cross (2214). The end of the guide component (2215) is sleeved on the mold cylinder column (3). The lower end of the mold cylinder column (3) is equipped with a mold adjustment structure (225) to adjust the height of the lifting seat (222) relative to the mold cylinder column (3).

2. A vertical articulated boom injection molding machine according to claim 1, characterized in that, The mold adjustment structure (225) includes a mold adjustment oil motor (2251), a gear disk (2252) and a driven gear (2253). The mold adjustment oil motor (2251) is fixedly installed on the side of the lifting seat (222), the gear disk (2252) is rotatably installed on the bottom surface of the lifting seat (222), and the driven gear (2253) is rotatably installed on the bottom surface of the lifting seat (222), and the driven gear (2253) is threaded onto the mold cylinder column (3).

3. A vertical articulated boom injection molding machine according to claim 1, characterized in that, The upper moving mold (211) is fixedly installed with a cylinder guide post (212), which is fixedly connected to the hopper fixing plate (215) through the mold. The part of the cylinder guide post (212) above the hopper fixing plate (215) is slidably connected to the lifting platform (216). The injection cylinder assembly (213) is symmetrically installed between the lifting platform (216) and the hopper fixing plate (215). The injection cylinder assembly (213) drives the lifting platform (216) to rise and fall relative to the hopper fixing plate (215).

4. A vertical articulated boom injection molding machine according to claim 3, characterized in that, The lifting platform (216) is fixedly installed with a heating injection structure (217) in the middle. The heating injection structure (217) moves through the hopper fixing plate (215) and connects with the upper moving mold (211). The heating injection structure (217) connects with the upper hopper (214).

5. A vertical articulated boom injection molding machine according to claim 1, characterized in that, The lower fixed mold (4) is fixedly installed with an ejector cylinder (5) at the center of its lower surface. The telescopic end of the ejector cylinder (5) extends through the upper surface of the lower fixed mold (4).

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