An injection molding machine take-off device for plastic articles

Abstract

The utility model discloses a kind of injection molding machine taking devices for plastic products, it is related to plastic product production technical field, specifically including internal taking structure and external taking structure, the internal taking structure is arranged in the injection molding cavity of plastic product injection molding machine, and the both sides of injection molding cavity are symmetrically provided with internal taking structure, the internal taking structure includes with the first lifting structure of injection molding machine connection, with the translation structure of the output shaft end of first lifting structure through connecting rod connection and with the first taking module of the output shaft end detachably connected of translation structure;The external taking structure is arranged in the top of plastic product injection molding machine.The injection molding machine taking device for plastic products, through the synergistic effect of internal taking structure and external taking structure, shorten the time required for plastic product from injection molding cavity to lift to safe height, improve taking efficiency, meet the height production demand of injection molding machine.

Description

Technical Field

[0001] This utility model relates to the field of plastic product manufacturing technology, specifically to a part-removing device for an injection molding machine used for plastic products. Background Technology

[0002] With the rapid development of the plastics industry, plastic products, due to their advantages such as lightweight, cost-effectiveness, and wide adaptability to molding processes, have been widely used in packaging, electronics, automobiles, and daily necessities. Injection molding, as a major production method for plastic products, directly impacts the market competitiveness of the products through its production efficiency and degree of automation. In the injection molding process, the robotic arm, as a key component handling device, plays a decisive role in the production cycle time through its movement trajectory and execution efficiency.

[0003] Currently, most injection molding machine part-retrieving robots employ a multi-axis linkage structure, and their workflow is typically as follows: the robot descends along the Z-axis to the mold cavity under the drive of a servo motor or cylinder; it grips the molded plastic product using a suitable fixture; the robot lifts the product to a safe height, moves it along the X / Y axes to a designated station, and adjusts the Z-axis height to complete placement. This part-retrieving method requires the robot to repeatedly perform lifting and translating operations, resulting in wasted time and reduced part-retrieving efficiency due to ineffective paths. Therefore, this application proposes a part-retrieving device for injection molding machines used for plastic products. Utility Model Content

[0004] This invention provides a part-retrieving device for injection molding machines used in plastic products, which solves the problem mentioned in the background art of high idle stroke ratio of robotic arms, resulting in reduced part-retrieving efficiency.

[0005] This utility model provides the following technical solution: a part-retrieving device for an injection molding machine for plastic products, comprising an internal part-retrieving structure and an external part-retrieving structure. The internal part-retrieving structure is disposed within the injection molding cavity of the plastic product injection molding machine, and the internal part-retrieving structures are symmetrically arranged on both sides of the injection molding cavity. The internal part-retrieving structure includes a first lifting structure connected to the injection molding machine, a translational structure connected to the end of the output shaft of the first lifting structure via a connecting rod, and a first part-retrieving module detachably connected to the end of the output shaft of the translational structure. The external part-retrieving structure is disposed on the top of the plastic product injection molding machine. The external part-retrieving structure includes a second lifting structure, a fixed plate connected to the end of the output shaft of the second lifting structure, a rotating structure connected to the bottom of one end of the fixed plate, a rotating plate connected to the end of the output shaft of the rotating structure, and a feeding structure connected to the bottom of the other end of the fixed plate. The middle of both ends of the rotating plate is provided with an insertion hole adapted to the output end of the feeding structure. A second part-retrieving module is disposed below the insertion hole. The second part-retrieving module is connected to the output ends of the rotating plate and the feeding structure via a quick-release structure.

[0006] Preferably, the second lifting structure includes a first lifting component, which is connected to the top of the plastic product injection molding machine via a fixing frame. The output end of the first lifting component is connected to a second lifting component, and the output end of the second lifting component is connected to a fixing plate.

[0007] Preferably, the quick-release structure includes a fixed base connected to the second part-retrieving module, a first electromagnet connected to the end of the rotating plate, and a second electromagnet connected to the end of the output shaft of the unloading structure. The second part-retrieving module is connected to the bottom of the fixed base. When the first electromagnet or the second electromagnet is energized, the first electromagnet or the second electromagnet is magnetically attracted to the fixed base.

[0008] Preferably, the insertion hole is located above the center of the fixing base, and a first electromagnet is symmetrically arranged on the outer side of the insertion hole.

[0009] Preferably, when one of the second part-retrieving modules is above the part-retrieving station of the injection molding cavity, the other second part-retrieving module is simultaneously located between the unloading station and the unloading structure.

[0010] Preferably, a cushioning pad is provided on the top of the fixing seat.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This plastic product injection molding machine part-removal device, through the coordinated action of the internal and external part-removal structures, shortens the time required for the plastic product to be lifted from the injection cavity to a safe height, thereby improving part-removal efficiency. By setting up two second part-removal modules, when one second part-removal module is removing a part, the other second part-removal module can perform a material unloading and resetting operation, further compressing the single part-removal cycle, improving the part-removal efficiency of the injection molding machine, and meeting the high production requirements of the injection molding machine.

[0013] 2. The plastic product injection molding machine part-removing device uses radial movement instead of traditional linear displacement in its external part-removing structure, omitting horizontal guide rails or transverse conveying devices, reducing the horizontal footprint of this application, optimizing the spatial layout, and improving the transfer efficiency of plastic products, thereby improving the working efficiency of this application. Furthermore, by adjusting the rotation angle, the plastic products can be transferred to unloading stations in different directions, improving the adaptability of this application. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the back of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal component removal structure of this utility model;

[0017] Figure 4 This is a bottom view of the rotating plate structure of this utility model;

[0018] Figure 5 The structure of this utility model Figure 4 Explosion diagram.

[0019] In the diagram: 1. Fixed frame; 2. First lifting assembly; 3. Second lifting assembly; 4. Fixed plate; 5. Rotating structure; 6. Rotating plate; 7. Unloading structure; 8. Insertion hole; 9. First lifting structure; 10. First picking module; 11. Second picking module; 12. Connecting rod; 13. Translation structure; 14. First electromagnet; 15. Second electromagnet; 16. Vacuum pump; 17. Vacuum tube; 18. Electric ball valve; 19. Fixed base. Detailed Implementation

[0020] 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.

[0021] This utility model provides an embodiment: Please refer to Figures 1-5 A part-retrieving device for an injection molding machine for plastic products includes an internal part-retrieving structure and an external part-retrieving structure. The internal part-retrieving structure is disposed inside the injection molding cavity of the plastic product injection molding machine, and the internal part-retrieving structures are symmetrically arranged on both sides of the injection molding cavity. The internal part-retrieving structure includes a first lifting structure 9 connected to the injection molding machine, and the first lifting structure 9 is located at a part-retrieving station away from the injection molding cavity. The output shaft end of the first lifting structure 9 is connected to a connecting rod 12, and the end of the connecting rod 12 away from the first lifting structure 9 is connected to a translation structure 13. The part-retrieving station of the injection molding cavity is located between the two translation structures 13. The output shaft end of the translation structure 13 is detachably connected to a first part-retrieving module 10. The first part-retrieving module 10 is adapted to the plastic product. By detachably connecting the first part-retrieving module 10 to the translation structure 13, the user can replace the appropriate first part-retrieving module 10 according to the needs, so that this application can adapt to various needs and improve the adaptability of this application.

[0022] In use, the height of the first picking module 10 can be changed by the first lifting structure 9, and the horizontal position of the first picking module 10 can be changed by the translation structure 13. The cooperation of the two internal picking structures can fix the plastic product by the first picking module 10, and the first lifting structure 9 can drive the plastic product to move in the vertical direction to separate the plastic product from the injection mold of the injection molding machine.

[0023] The first lifting structure 9 is existing technology, enabling stable movement and precise positioning of the first picking module 10 in the vertical direction. The translation structure 13 is also existing technology, enabling stable movement and precise positioning of the first picking module 10 in the horizontal plane. The working principle of the first picking module 10 is based on existing technology. Its core is to achieve automated picking of plastic products through steps such as positioning, gripping, transporting, and releasing. Specifically, different picking methods can be adapted according to the shape, size, and material of the plastic products.

[0024] An external lifting structure is located on top of a plastic product injection molding machine. This external lifting structure includes a second lifting structure, which in turn includes a first lifting component 2. The first lifting component 2 is connected to the top of the plastic product injection molding machine via a fixing frame 1. The output end of the first lifting component 2 is connected to a second lifting component 3, and the output end of the second lifting component 3 is connected to a fixing plate 4. The second lifting structure utilizes the synergistic effect of the first lifting component 2 and the second lifting component 3 to increase the vertical lifting speed of the fixing plate 4, thereby improving the lifting efficiency of the plastic product. The first lifting component 2 and the second lifting component 3 can be independently controlled in terms of extension and retraction. By superimposing these two stages, a larger total stroke is achieved, allowing this application to flexibly adapt to various lifting positions of different heights, thus improving its adaptability. Furthermore, it shortens the stroke of a single-stage extension and retraction, reducing positioning errors.

[0025] The first lifting component 2 and the second lifting component 3 are both existing technologies, which can realize the stable movement and precise positioning of the fixed plate 4 in the vertical direction.

[0026] A rotating structure 5 is connected to the bottom of one end of the fixed plate 4. A rotating plate 6 is connected to the end of the output shaft of the rotating structure 5. Under the action of the rotating structure 5, the rotating plate 6 can rotate stably in the horizontal plane. The rotating structure 5 is existing technology and can achieve stable rotation, precise positioning, and adjustable speed of the rotating plate 6.

[0027] Insertion holes 8 are provided in the middle of both ends of the rotating plate 6. A second part-removing module 11 is provided below the insertion holes 8. A material-feeding structure 7 is provided at the bottom of the other end of the fixed plate 4. When one of the second part-removing modules 11 is above the part-removing station of the injection molding cavity, the other second part-removing module 11 is simultaneously located between the material-feeding station and the material-feeding structure 7. The output end of the material-feeding structure 7 is adapted to the insertion hole 8, and the output end of the material-feeding structure 7 is aligned with the insertion hole 8. The second part-removing module 11 is connected to the output ends of the rotating plate 6 and the material-feeding structure 7 through a quick-release structure. When the second picking module 11 is connected to the rotating plate 6, the rotation of the rotating plate 6 can drive the second picking module 11 to move, causing the positions of the two second picking modules 11 to be interchanged. This allows the plastic product to be moved above the unloading station by rotation during use, reducing the ineffective movement time of the plastic product during transfer, increasing the number of pick-ups and place-ups per unit time, and thus improving the work efficiency of this application. Furthermore, by adjusting the rotation angle, the plastic product can be transferred to unloading stations in different directions, improving the adaptability of this application. When the second picking module 11 is connected to the unloading structure 7, the unloading structure 7 can drive the second picking module 11 to move downwards, thus placing the plastic product on the unloading station.

[0028] As described above, the external part-picking structure utilizes radial movement instead of traditional linear displacement, eliminating the need for horizontal guide rails or transverse conveying devices. This reduces the horizontal footprint of the application, optimizes spatial layout, and improves the efficiency of plastic product transfer. Furthermore, the coordinated action of the two second part-picking modules allows the other module to perform a material unloading and resetting operation while one module is picking up a part, further reducing the single cycle time and meeting high production demands.

[0029] The quick-release structure includes a fixed base 19 connected to the second part-removing module 11, a first electromagnet 14 connected to the end of the rotating plate 6, and a second electromagnet 15 connected to the end of the output shaft of the unloading structure 7. When the first electromagnet 14 or the second electromagnet 15 is energized, the first electromagnet 14 or the second electromagnet 15 is magnetically attracted to the fixed base 19. The second part-retrieving module 11 is connected to the bottom of the fixed base 19. The insertion hole 8 is located above the middle of the fixed base 19. The first electromagnet 14 is symmetrically arranged on the outside of the insertion hole 8. When the first electromagnet 14 is energized, the second part-retrieving module 11 is quickly connected to the rotating plate 6. When the first electromagnet 14 is de-energized, the second part-retrieving module 11 and the rotating plate 6 can be quickly disconnected. When the second part-retrieving module 11 is directly above the unloading station, the unloading structure 7 can contact the top of the fixed base 19 through the insertion hole 8 below it. When the second electromagnet 15 is energized, the second part-retrieving module 11 and the unloading structure 7 can be quickly connected. The unloading structure 7 can drive the second part-retrieving module 11 to move stably and accurately in the vertical direction, which makes it easy for the second part-retrieving module 11 to place the injection molded part on the unloading station. When the second electromagnet 15 is de-energized, the second part-retrieving module 11 and the unloading structure 7 can be quickly disconnected.

[0030] A buffer pad is provided on the top of the fixed base 19. The buffer pad reduces the impact force when the fixed base 19 comes into contact with the rotating plate 6 or the output end of the feeding structure 7. The physical characteristics of the buffer pad (such as material selection and thickness parameters) can be flexibly adjusted according to the actual working conditions—it must meet the requirements of buffering and shock absorption, and also ensure that it does not interfere with the magnetic attraction between the fixed base 19 and the first electromagnet 14 and the second electromagnet 15. The specific parameters can be freely set while meeting the functional requirements.

[0031] The working principle of the second part-retrieving module 11 is based on existing technology. Its core is to achieve automated part-retrieving of plastic products through steps such as positioning, gripping, handling, and releasing. Specifically, different part-retrieving methods can be adapted according to the shape, size, and material of the plastic product. In Embodiment 1 of this application, the second part-retrieving module 11 is a vacuum suction cup. A vacuum pump 16 is installed on the fixed base 19. The air inlet of the vacuum pump 16 is connected to the inner cavity of the vacuum suction cup through a vacuum tube 17. An electric ball valve 18 is installed at one end of the vacuum tube 17. The vacuum pump 16 is used to create a negative pressure connection between the vacuum suction cup and the plastic product. The vacuum tube 17 is a telescopic tube. The materials of both the vacuum tube 17 and the vacuum suction cup can be set according to requirements and are not limited here.

[0032] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0033] In summary: When this plastic product is used with the injection molding machine part removal device, when part removal is required, the translation structure 13 drives the first part removal module 10 to move until the first part removal module 10 fixes the plastic product. The first lifting structure 9 then moves the plastic product upward until it is above the injection molding station. During the operation of the inner part removal structure, the second lifting structure drives the second part removal module 11 downward. After the second part removal module 11 fixes the plastic product, the restriction of the inner part removal structure on the plastic product is released. The second lifting structure then moves the plastic product upward until it is raised to a safe height. During the process of the outer part removal structure raising the plastic product, the translation structure 13 and the first lifting structure 9 in the inner part removal structure are reset sequentially to avoid the first part removal module 10 affecting the operation of the injection molding machine during the reset process of the first lifting structure 9.

[0034] When the plastic product is lifted to a safe height, the rotating structure 5 drives the rotating plate 6 to rotate, which in turn drives the plastic product to rotate until it moves from above the picking station to above the unloading station. The unloading structure 7 extends until it contacts the top of the fixed base 19 below it. The second electromagnet 15 is energized, and after the connection between the unloading structure 7 and the fixed base 19 is established, the first electromagnet 14, which is adapted to the fixed base 19 above the unloading station, is de-energized. The continued extension of the unloading structure 7 can drive the plastic product to move downwards until it is placed on the unloading station. The second picking module 11 then releases the restriction on the plastic product, completing the picking operation. The unloading structure 7 drives the connected second picking module 11 to move upwards until the second picking module 11 resets. After the fixed base 19 is reconnected to the rotating plate 6, the second electromagnet 15 is de-energized, and the unloading structure 7 resets. During the part-retrieving process, while the internal part-retrieving structure is resetting, the injection molding machine can perform plastic product injection molding operations. The coordinated action of the internal part-retrieving structure and the second part-retrieving module 11 located at the part-retrieving station can simultaneously perform the current plastic product unloading operation and realize the gripping of the lowered plastic product, thereby improving the part-retrieving efficiency of plastic products.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The materials of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A part-retrieving device for an injection molding machine used for plastic products, comprising an internal part-retrieving structure and an external part-retrieving structure, characterized in that: The internal part-retrieving structure is located inside the injection molding cavity of the plastic product injection molding machine, and internal part-retrieving structures are symmetrically arranged on both sides of the injection molding cavity. The internal part-retrieving structure includes a first lifting structure (9) connected to the injection molding machine, a translation structure (13) connected to the output shaft end of the first lifting structure (9) via a connecting rod (12), and a first part-retrieving module (10) detachably connected to the output shaft end of the translation structure (13). The external part-retrieving structure is located on the top of the plastic product injection molding machine. The external part-retrieving structure includes a second lifting structure and a first lifting module (10) detachably connected to the output shaft end of the translation structure (13). The structure includes a fixed plate (4) connected to the end of the output shaft, a rotating structure (5) connected to the bottom of one end of the fixed plate (4), a rotating plate (6) connected to the end of the output shaft of the rotating structure (5), and a feeding structure (7) connected to the bottom of the other end of the fixed plate (4). The rotating plate (6) has an insertion hole (8) at the middle of both ends that is adapted to the output end of the feeding structure. A second picking module (11) is provided below the insertion hole (8). The second picking module (11) is connected to the output ends of the rotating plate (6) and the feeding structure (7) through a quick-release structure.

2. The injection molding machine part removal apparatus of claim 1, wherein: The second lifting structure includes a first lifting component (2), which is connected to the top of the plastic product injection molding machine via a fixed frame (1). The output end of the first lifting component (2) is connected to a second lifting component (3), and the output end of the second lifting component (3) is connected to a fixed plate (4).

3. The injection molding machine part removal apparatus of claim 1, wherein: The quick-release structure includes a fixed base (19) connected to the second part-retrieving module (11), a first electromagnet (14) connected to the end of the rotating plate (6), and a second electromagnet (15) connected to the end of the output shaft of the unloading structure (7). The second part-retrieving module (11) is connected to the bottom of the fixed base (19). When the first electromagnet (14) or the second electromagnet (15) is energized, the first electromagnet (14) or the second electromagnet (15) is magnetically attracted to the fixed base (19).

4. The injection molding machine part removal apparatus of claim 3, wherein: The insertion hole (8) is located above the middle of the fixed base (19), and a first electromagnet (14) is symmetrically arranged on the outer side of the insertion hole (8).

5. The injection molding machine part removal apparatus of claim 1 wherein: When one of the second part-removing modules (11) is above the part-removing station of the injection molding cavity, the other second part-removing module (11) is simultaneously located between the unloading station and the unloading structure (7).

6. The injection molding machine part removal apparatus of claim 3, wherein: A cushioning pad is provided on the top of the fixed seat (19).

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