Vertical multi-station gas-electric hybrid turntable machine

Abstract

A mold opening assembly is fixedly connected to the bottom of a turntable injection molding machine frame and used for controlling mold closing action, a turntable supporting assembly is fixedly connected to the bottom of the turntable injection molding machine frame, and a turntable assembly is arranged on a frame body of the turntable supporting assembly; the rotary table supporting assembly is used for supporting the rotary table assembly, products of different specifications can be machined at the same time through the three molds arranged on the rotary table assembly, in this way, the machining efficiency can be greatly improved, the mold at the position of a mold closing area can be judged in cooperation with different signal lamps, in-place observation can be conducted in time, and errors are avoided; the three stations can work at the same time to improve the production efficiency, the rotary table injection molding machine capable of being provided with multiple pairs of different molds at the same time is achieved, the multiple pairs of molds continuously rotate through the rotary table to achieve uninterrupted injection molding, and in addition, a column-free mold opening assembly structure is arranged, so that injection molding of different products can be achieved, and the production efficiency is improved. The injection molding efficiency of the injection molding machine is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of injection molding machines, specifically to a vertical multi-station hydraulic-electric hybrid rotary machine. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. Injection molding machines can be divided into vertical, horizontal, and angle injection molding machines. The rotary vertical injection molding machine is a high-efficiency and automated injection molding equipment. It adopts a vertical clamping mold + rotary worktable design and is suitable for complex injection molding production with multiple stations and multiple processes.

[0003] Existing rotary vertical injection molding machines consist of one upper mold and two lower molds, and can only produce the same product at the same time. When producing small batches of products with multiple varieties, frequent mold changes are required to process different products, which leads to wasted capacity and low production efficiency. In addition, single-mold injection molding machines have long cycles and cannot meet short-delivery orders. They also rely heavily on manual labor, and complex processes such as insert placement and multi-color injection molding require manual intervention, which increases costs. Summary of the Invention

[0004] To address the aforementioned technical problems, a vertical multi-station hybrid rotary injection molding machine is provided. This technical solution solves the problems mentioned in the background section, where existing rotary vertical injection molding machines consist of one upper mold and two lower molds, allowing only the production of the same product at a time. When producing small batches of multiple products, frequent mold changes are required to process different products, leading to wasted capacity, low production efficiency, long cycle times for single-mold injection molding machines that cannot meet short-delivery orders, high reliance on manual labor, and the need for manual intervention in complex processes such as insert placement and multi-color injection molding, resulting in increased costs.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a vertical multi-station oil-electric hybrid rotary machine, including a rotary injection molding machine, wherein a mold opening component is fixedly connected to the bottom of the frame of the rotary injection molding machine, the mold opening component is used to control the mold closing action, and a rotary support component is fixedly connected to the bottom of the frame of the rotary injection molding machine, wherein the frame of the rotary support component is provided with the rotary component, and the rotary support component is used to support the rotary component; Preferably, the mold opening assembly includes: a base, a mold opening cylinder, a magnetic template, and a displacement gauge. The bottom of the mold opening assembly is fixedly connected to the frame of the base, and the frame of the base is fixedly connected to the bottom of the rotary injection molding machine frame by bolts. The upper part of the mold opening assembly frame is fixedly connected to the frame of the mold opening cylinder, the end of the mold opening cylinder is fixedly connected to the frame of the magnetic template, and a displacement gauge is fixedly connected to the upper part of the mold opening assembly frame. Preferably, the mold opening cylinder includes: a mold opening cylinder mandrel and a guide sleeve. The shell of the mold opening cylinder is fixedly connected to the frame of the guide sleeve. The guide sleeve is fixedly connected to the upper part of the mold opening assembly frame by bolts. The inner wall of the mold opening cylinder is slidably connected to the rod of the mold opening cylinder mandrel. Preferably, the magnetic template includes: a guide post and a tightening nut, the middle part of the magnetic template is fixed to the threaded hole of the mold opening cylinder core shaft through the tightening nut, and the plate body of the magnetic template is fixedly connected to the sliding rod of the guide post; Preferably, the turntable assembly includes: sensor block one, sensor block two, sensor block three, sensor block four, and a support frame. The outer wall of the turntable assembly is rotatably connected to the frame of the support frame. The bottom of the turntable assembly plate is fixedly connected to sensor block one. Sensor block two is fixedly connected to the front side of sensor block one. Sensor block three is fixedly connected to the left side of the turntable assembly. Sensor block four is fixedly connected to the right side of the turntable assembly. Multiple turntable support pads are provided at the bottom of the turntable assembly plate. A turntable positioning pin is provided in the middle of the turntable assembly. The turntable positioning pin is used to connect with the column of the turntable support assembly. Preferably, a proximity switch one is fixedly connected to the front side of the turntable assembly plate, a proximity switch two is provided on the side of the proximity switch one, and a proximity switch three is provided on the side of the proximity switch two. Preferably, the turntable support assembly includes: a drive servo group, a thrust bearing, a gear seat, and a turntable spindle. One end of the turntable support assembly is provided with a turntable spindle, which is fitted and connected to the frame of the turntable assembly. A thrust bearing is provided between the turntable support assembly and the inner wall of the turntable assembly. The housing of the gear seat is fixedly connected to the frame outside the turntable assembly, and a drive servo group is provided at the lower part of the gear seat. Preferably, an oil seal is provided on the outer side of the thrust bearing, and a water-retaining ring is provided on the upper part of the thrust bearing; Preferably, a pinion is rotatably connected to the inner wall of the gear housing, and a rolling bearing is provided on the upper part of the gear housing.

[0006] Compared with the prior art, the beneficial effects of the present invention are: The upper half of the mold separates from the magnetic plate of the magnetic template. Finally, the mold opening cylinder spindle is controlled by the mold opening cylinder to move upward and reset. At this time, the process of opening the mold and taking out the product from the turntable assembly is completed. The turntable assembly will continue to rotate to send the next mold for mold opening and material taking, repeating the above steps. This structure, when used with the turntable assembly, can save the molding cycle. The magnetic template is used for quick mold replacement to improve work efficiency. Moreover, the magnetic template uses magnetic force to achieve adsorption of the mold, so that there is no relative displacement between the template and the mold, ensuring molding accuracy and improving mold change efficiency: traditional bolt fixing takes 1 to 2 hours, while using the magnetic template only takes 2 to 5 minutes. The uniform magnetic force distribution reduces local stress and extends the mold life. The magnetic template is magnetized and released by charging or discharging, thereby clamping or releasing the mold instantly. During the magnetic adsorption (clamping stage), the coil inside the magnetic template is energized to generate a strong magnetic field, which penetrates the template panel (usually a magnetically conductive steel plate) and firmly adsorbs the back of the mold. The clamping force can be evenly distributed. The magnetic template has a built-in magnetic field detection device to monitor the clamping force in real time and automatically alarm when there is an abnormality. When the first mold is moved to the sensing area by the turntable assembly, proximity switch one and proximity switch two light up respectively. When the second mold rotates to the sensing area, only proximity switch one light up. When the third mold rotates to the sensing area, only proximity switch two light up. Because different signals are used to distinguish them, the upper machine position can determine which mold is in the mold closing area, so that the parameters corresponding to the mold can be matched. The three molds set by the turntable assembly can process products of different specifications at the same time, which can greatly improve processing efficiency. With the help of different signal lights, it is possible to determine which mold is in the mold closing area, so that timely observation can be made to avoid errors. Moreover, the three stations can work at the same time to increase production efficiency. Hobbing gears are directly installed on the outer circle of the turntable to ensure the precision of gear meshing and reduce transmission noise. The turntable of the turntable support assembly is integrally cast from graphite cast iron with alloy composition, and is heat-treated and CNC machined to ensure flatness and strength. The thrust bearing can withstand axial force, which can reduce the power of the drive servo group, reduce power consumption, reduce heat generation, and also reduce mechanical vibration and noise. This invention realizes a rotary injection molding machine that can simultaneously install multiple different molds. The multiple molds achieve uninterrupted injection through continuous rotation of the rotary table. In addition, it is equipped with a column-free mold opening assembly structure. Thus, it can realize the injection of different products, effectively improve the injection molding efficiency of the injection molding machine, and solve the problems of existing technology that can only produce the same product at the same time. It also addresses the pain points of small batch and multi-variety in the industry: the explosion of market customization demand leads to frequent mold changes and wasted production capacity. Furthermore, it solves the efficiency bottleneck: the long cycle of single mold position injection molding machines cannot meet short delivery orders. Finally, it addresses the problem of high dependence on manual labor: the complex processes of insert placement and multi-color injection molding require manual intervention, which increases costs. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the planar structure of the mold opening component of the present invention; Figure 3 This is a schematic diagram of the planar structure of the turntable support assembly of the present invention; Figure 4 This is a bottom-view planar structural diagram of the turntable assembly of the present invention; Figure 5 for Figure 4 A magnified structural diagram of part A; Figure 6 This is a bottom view of the turntable structure of the turntable assembly of the present invention.

[0008] The numbers on the map are: 1. Turntable injection molding machine; 2. Mold opening assembly; 21. Base; 20. Displacement gauge; 22. Mold opening cylinder; 221. Mold opening cylinder spindle; 222. Guide sleeve; 23. Magnetic template; 231. Guide column; 232. Tightening nut; 3. Turntable assembly; 30. Support frame; 301. Turntable support pad; 302. Turntable positioning pin; 32. Sensor block three; 33. Sensor block four; 31. Sensor block one; 311. Sensor block two; 341. Proximity switch one; 342. Proximity switch two; 343. Proximity switch three; 4. Turntable support assembly; 41. Thrust bearing; 411. Oil seal; 412. Water baffle ring; 42. Gear seat; 421. Rolling bearing; 422. Pinion; 43. Turntable spindle; 40. Drive servo group. Detailed Implementation

[0009] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0010] Please refer to Figure 1 and Figure 2 As shown, a vertical multi-station hybrid rotary injection molding machine includes a rotary injection molding machine 1. A mold opening assembly 2 is fixedly connected to the bottom of the frame of the rotary injection molding machine 1. The mold opening assembly 2 is used to control the mold closing action. A rotary support assembly 4 is fixedly connected to the bottom of the frame of the rotary injection molding machine 1. A rotary assembly 3 is provided on the frame of the rotary support assembly 4. The rotary support assembly 4 is used to support the rotary assembly 3. The mold opening assembly 2 includes: a base 21, a mold opening cylinder 22, a magnetic template 23, and a displacement ruler 20. The bottom of the mold opening assembly 2 is fixedly connected to the frame of the base 21. The frame of the base 21 is fixedly connected to the bottom of the frame of the rotary injection molding machine 1 by bolts. The upper part of the frame of the mold opening assembly 2 is fixedly connected to the frame of the mold opening cylinder 22. The end of the mold opening cylinder 22 is fixedly connected to the frame of the magnetic template 23. The upper part of the frame of the mold opening assembly 2 is fixedly connected to the displacement ruler 20, which can be used to visually observe the amplitude of the mold opening cylinder 22's movement. The mold opening cylinder 22 includes: a mold opening cylinder spindle 221 and a guide sleeve 222. The shell of the mold opening cylinder 22 is fixedly connected to the frame of the guide sleeve 222. The guide sleeve 222 is fixedly connected to the upper part of the mold opening assembly 2 frame by bolts. The inner wall of the mold opening cylinder 22 is slidably connected to the rod of the mold opening cylinder spindle 221. The magnetic template 23 includes: a guide post 231 and a tightening nut 232. The middle part of the magnetic template 23 is fixed to the threaded hole of the mold opening cylinder spindle 221 through the tightening nut 232. The plate body of the magnetic template 23 is fixedly connected to the sliding rod of the guide post 231. Working Principle: During injection molding using the rotary injection molding machine 1, when the mold rotates to below the mold opening assembly 2 via the rotary assembly 3, the mold opening cylinder 22 drives the mold opening cylinder spindle 221 to move downwards. The mold opening cylinder spindle 221 drives the magnetic template 23 to move downwards synchronously. When the magnetic template 23 contacts the upper surface of the mold, it becomes magnetized, attracting the upper half of the mold onto the magnetic template 23. Then, the mold opening cylinder 22 controls the mold opening cylinder spindle 221 to move upwards, and the magnetic template 23 moves the attracted half of the mold upwards, thus opening the mold. At this time, an externally mounted robotic arm will enter from the side and remove the half of the mold that is not attracted by the magnetic template 23. Then, the mold opening cylinder spindle 221 is again controlled by the mold opening cylinder 22 to move downwards, and the magnetic template 23 releases its magnetic force, allowing the mold to open. The upper half of the mold separates from the magnetic plate of the magnetic template 23. Finally, the mold opening cylinder spindle 221 is controlled by the mold opening cylinder 22 to move upward and reset. At this time, the process of opening the mold and taking out the product from the mold transferred by the turntable assembly 3 is completed. The turntable assembly 3 will continue to rotate to send the next mold for mold opening and material taking, repeating the above steps. This structure, when used with the turntable assembly 3, can save the molding cycle. The magnetic template 23 is used for quick mold replacement to improve work efficiency. Moreover, the magnetic template 23 uses magnetic force to achieve adsorption of the mold, so that there is no relative displacement between the template and the mold, ensuring molding accuracy and improving mold changing efficiency: traditional bolt fixing takes 1 to 2 hours, while using the magnetic template 23 only takes 2 to 5 minutes. The uniform magnetic force distribution reduces local stress and extends the mold life. The magnetic template 23 is magnetized and released by charging or discharging, thereby completing the instantaneous clamping or release of the mold. During the magnetic adsorption (clamping stage), the coil inside the magnetic template 23 is energized to generate a strong magnetic field, which penetrates the template panel (usually a magnetic steel plate) and firmly adsorbs the back of the mold. The clamping force can be evenly distributed. The magnetic template 23 has a built-in magnetic field detection device to monitor the clamping force in real time and automatically alarm when there is an abnormality. Example 2

[0011] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the turntable assembly 3 includes: sensor block 1 31, sensor block 2 311, sensor block 32, sensor block 4 33, and support frame 30. The outer wall of the turntable assembly 3 is rotatably connected to the frame of the support frame 30. The bottom of the plate of the turntable assembly 3 is fixedly connected to sensor block 1 31. Sensor block 2 311 is fixedly connected to the front side of sensor block 1 31. Sensor block 32 is fixedly connected to the left side of the turntable assembly 3. Sensor block 4 33 is fixedly connected to the right side of the turntable assembly 3. Multiple turntable support pads 301 are provided at the bottom of the plate of the turntable assembly 3. A turntable positioning pin 302 is provided in the middle of the turntable assembly 3. The turntable positioning pin 302 is used to connect with the column of the turntable support assembly 4. The turntable assembly 3 is fixedly connected to the front side of the plate with a proximity switch 341, a proximity switch 342 is provided on the side of the proximity switch 341, and a proximity switch 343 is provided on the side of the proximity switch 342. The turntable support assembly 4 includes: a drive servo group 40, a thrust bearing 41, a gear seat 42, and a turntable spindle 43. One end of the turntable support assembly 4 is provided with the turntable spindle 43, which is fitted and connected to the frame of the turntable assembly 3. A thrust bearing 41 is provided between the turntable support assembly 4 and the inner wall of the turntable assembly 3. The housing of the gear seat 42 is fixedly connected to the frame outside the turntable assembly 3. The drive servo group 40 is provided at the lower part of the gear seat 42. An oil seal 411 is provided on the outer side of the thrust bearing 41, and a water baffle ring 412 is provided on the upper part of the thrust bearing 41. A pinion 422 is rotatably connected to the inner wall of the gear housing 42, and a rolling bearing 421 is provided on the upper part of the gear housing 42. Working principle: Three molds are distributed on the plate of turntable assembly 3. The first mold is located at the positions of sensor block 1 (31) and sensor block 2 (311), the second mold is located at the position of sensor block 3 (32), and the third mold is located at the position of sensor block 4 (33). These three molds can produce plastic products of different sizes and shapes. Combined with the pillarless mold opening structure of mold opening assembly 2, station 1 is the high-pressure clamping and injection station, station 2 is the cooling station, and station 3 is the mold opening and ejection station. Because the turntable of turntable assembly 3 corresponds to three different molds, and each mold produces different plastic products, the molding parameters of each mold are different. Therefore, we need to assist the host computer in determining the corresponding position of each mold to ensure the correct molding parameters for each mold. The proximity switch 341 senses the position of sensing block 311, and the proximity switch 342 senses the position of sensing block 31. When the first mold is moved to the sensing area by the turntable assembly 3, both proximity switches 341 and 342 light up. When the second mold rotates to the sensing area, only proximity switch 341 lights up. When the third mold rotates to the sensing area, only proximity switch 342 lights up. Because different signals are used to distinguish them, the upper machine can determine which mold is in the mold closing area. This allows for matching the parameters corresponding to the mold. The above description uses three molds as an example. In actual use, molds can be added or removed according to the actual situation, and corresponding matching sensing components can be used.

[0012] The three molds set by the turntable assembly 3 can process products of different specifications at the same time, which can greatly improve processing efficiency. With the help of different signal lights, it is possible to determine which mold is in the mold closing area, so that timely observation can be made to avoid errors. Moreover, the three stations can work at the same time to increase production efficiency. The turntable support assembly 4 enables the turntable spindle 43 to support the weight of the turntable and mold, reducing the resistance between the turntable and the bottom friction plate, thus reducing the driving torque and achieving energy saving and emission reduction. Hobbing gears are directly installed on the outer circumference of the turntable to ensure gear meshing accuracy and reduce transmission noise. The turntable of the turntable support assembly 4 is integrally cast from graphite cast iron with alloy components, and undergoes heat treatment and CNC machining to ensure flatness and strength. The thrust bearing 41 can withstand axial force, solving the problem that traditional turntables with central rotary bearings can only use radially positioned bearings and cannot bear axial loads. The drive servo group 40 drives the rolling bearing 421 to rotate, and the rolling bearing 421 is tightly fitted to the turntable. Through the design of the thrust bearing 41 and the rolling bearing 421, the thrust bearing 41 can withstand axial force, supporting the weight of the turntable and mold, reducing frictional resistance, reducing the power of the drive servo group 40, reducing energy consumption, reducing heat generation, and also mitigating mechanical vibration and noise.

[0013] This invention realizes a rotary injection molding machine that can simultaneously install multiple different molds. The multiple molds achieve uninterrupted injection through the continuous rotation of the rotary table. In addition, it is equipped with a column-free mold opening assembly structure, thereby enabling the injection molding of different products and effectively improving the injection molding efficiency of the injection molding machine.

[0014] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical multi-station hybrid rotary injection molding machine, comprising a rotary injection molding machine (1), characterized in that: The bottom of the frame of the rotary injection molding machine (1) is fixedly connected to a mold opening component (2), which is used to control the mold closing action. The bottom of the frame of the rotary injection molding machine (1) is fixedly connected to a rotary support component (4), and the frame of the rotary support component (4) is provided with a rotary component (3). The rotary support component (4) is used to support the rotary component (3).

2. A vertical multi-station hybrid rotary table machine according to claim 1, characterized in that: The mold opening assembly (2) includes: a base (21), a mold opening cylinder (22), a magnetic template (23), and a displacement ruler (20). The bottom of the mold opening assembly (2) is fixedly connected to the frame of the base (21). The frame of the base (21) is fixedly connected to the bottom of the frame of the rotary injection molding machine (1) by bolts. The upper part of the frame of the mold opening assembly (2) is fixedly connected to the frame of the mold opening cylinder (22). The end of the mold opening cylinder (22) is fixedly connected to the frame of the magnetic template (23). The upper part of the frame of the mold opening assembly (2) is fixedly connected to the displacement ruler (20).

3. A vertical multi-station hybrid rotary table machine according to claim 2, characterized in that: The mold opening cylinder (22) includes: a mold opening cylinder spindle (221) and a guide sleeve (222). The shell of the mold opening cylinder (22) is fixedly connected to the frame of the guide sleeve (222). The guide sleeve (222) is fixedly connected to the upper part of the mold opening assembly (2) frame by bolts. The inner wall of the mold opening cylinder (22) is slidably connected to the rod of the mold opening cylinder spindle (221).

4. A vertical multi-station hybrid rotary table machine according to claim 2, characterized in that: The magnetic template (23) includes: a guide post (231) and a tightening nut (232). The middle part of the magnetic template (23) is fixed to the threaded hole of the mold opening cylinder spindle (221) through the tightening nut (232). The plate of the magnetic template (23) is fixedly connected to the sliding rod of the guide post (231).

5. A vertical multi-station hybrid rotary table machine according to claim 1, characterized in that: The turntable assembly (3) includes: sensor block one (31), sensor block two (311), sensor block three (32), sensor block four (33), and support frame (30). The outer wall of the turntable assembly (3) is rotatably connected to the frame of the support frame (30). The bottom of the plate of the turntable assembly (3) is fixedly connected to sensor block one (31). Sensor block two (311) is fixedly connected to the front side of sensor block one (31). Sensor block three (32) is fixedly connected to the left side of the turntable assembly (3). Sensor block four (33) is fixedly connected to the right side of the turntable assembly (3). Multiple turntable support pads (301) are provided at the bottom of the plate of the turntable assembly (3). A turntable positioning pin (302) is provided in the middle of the turntable assembly (3). The turntable positioning pin (302) is used to connect with the column of the turntable support assembly (4).

6. A vertical multi-station hybrid rotary table machine according to claim 5, characterized in that: The turntable assembly (3) has a proximity switch one (341) fixedly connected to the front side of the plate, a proximity switch two (342) is provided on the side of the proximity switch one (341), and a proximity switch three (343) is provided on the side of the proximity switch two (342).

7. A vertical multi-station hybrid rotary table machine according to claim 5, characterized in that: The turntable support assembly (4) includes: a drive servo group (40), a thrust bearing (41), a gear seat (42), and a turntable spindle (43). One end of the turntable support assembly (4) is provided with a turntable spindle (43). The turntable spindle (43) is fitted and connected to the frame of the turntable assembly (3). A thrust bearing (41) is provided between the turntable support assembly (4) and the inner wall of the turntable assembly (3). The housing of the gear seat (42) is fixedly connected to the frame outside the turntable assembly (3). The lower part of the gear seat (42) is provided with a drive servo group (40).

8. A vertical multi-station hybrid rotary table machine according to claim 7, characterized in that: An oil seal (411) is provided on the outer side of the thrust bearing (41), and a water baffle ring (412) is provided on the upper part of the thrust bearing (41).

9. A vertical multi-station hybrid rotary table machine according to claim 7, characterized in that: A pinion (422) is rotatably connected to the inner wall of the gear seat (42) housing, and a rolling bearing (421) is provided on the upper part of the gear seat (42).

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