Lightweight feeding manipulator out-of-mold cooling device for rapid air cooling of inner and outer walls of bottle preform

Abstract

The invention belongs to the technical field of mechanical arm out-of-mold cooling devices, and relates to a light-weight on-mold mechanical arm out-of-mold cooling device for rapid air cooling of the inner wall and the outer wall of a bottle preform. The blank taking device comprises a blank taking barrel fixing plate, a plurality of blank taking barrels are arranged on the blank taking barrel fixing plate, and an air suction type outer wall air cooling structure communicated with the bottoms of the blank taking barrels is arranged in the blank taking barrel fixing plate. A rotary inner wall blowing mechanism which is staggered with the blank taking cylinder and can rotate along one side close to or far away from the top of the blank taking cylinder is arranged above the blank taking cylinder fixing plate, and synchronous driving equipment for driving the rotary inner wall blowing mechanism to axially rotate is arranged at two ends of the blank taking cylinder fixing plate. According to the rotary type inner wall air blowing mechanism, air blowing cooling is synchronously carried out in the moving and returning process after the mechanical arm takes a workpiece, the workpiece taking moving time is converted into the cooling effective time, compared with an existing step-by-step cooling mode, the cooling time is prolonged, and the cooling efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the technical field of external cooling devices for robotic manipulator molds, and relates to a lightweight external cooling device for rapid air cooling of the inner and outer walls of a preform. Background Technology

[0002] In the field of injection molding preform production, the cooling efficiency of the preform directly determines the injection molding production cycle. In existing technologies, the preform needs to complete most of the cooling process inside the mold cavity. After the preform temperature drops to a state where it is fully shaped and can be stably demolded, the mold opens and the preform is ejected by the ejection mechanism, or it is picked up by a robot. This model has several key flaws: First, in-mold cooling consumes a significant amount of production time, typically 40%-60% of a single mold cycle, leading to low production efficiency. Second, some external cooling equipment uses a multi-station design, requiring dedicated cooling stations, which not only increases equipment size and the number of parts, raising manufacturing costs, but also results in a larger overall equipment weight, making it difficult to flexibly adapt to different injection molding machine models. Third, existing internal wall cooling mechanisms are mostly fixed structures, unable to adjust for minor deviations in mold cavity spacing. For multi-cavity molds (such as 8-cavity or 16-cavity), uneven cooling of some preform inner walls is likely to occur, leading to a decrease in product qualification rate. Fourth, in existing external cooling systems, internal wall blowing and robotic arm movement are mostly performed in steps, resulting in insufficient utilization of cooling time and limited improvement in cooling efficiency. Therefore, there is an urgent need to design a device that allows for rapid air cooling of the inner and outer walls of the preform by a robotic arm when the preform reaches the critical point of being ready for removal (i.e., the preform has solidified to the point of not sticking to the mold and not deforming, but has not been fully cooled). This device would eliminate the need for additional cooling stations, shorten mold waiting time, optimize the adaptability of the cooling mechanism, and improve the yield rate of multi-cavity products.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a preform removal suction cooling device for injection molding machines [application number: 201110025328.5], which includes a preform removal plate, a suction cylinder installed on the preform removal plate, a suction cylinder outer sleeve installed on the outside of the suction cylinder, and a preform removal cavity inside the suction cylinder. The characteristic feature is that the outer wall of the suction cylinder has an inlet cooling water channel and an outlet cooling water channel, and an inlet hole and an outlet hole are opened at the bottom of the suction cylinder. The inlet hole is connected to the inlet cooling water channel, and the outlet hole is connected to the outlet cooling water channel. A water channel is formed in the preform removal plate, and the inlet hole and the outlet hole are each connected to the water channel of the preform removal plate. An annular groove is formed at the upper end of the outer wall of the suction cylinder, and the inlet cooling water channel and the outlet cooling water channel are connected through the annular groove. However, when the preform reaches the critical point of being ready for removal, this solution still cannot use a robotic arm to grab the preform and simultaneously complete the cooling of the inner and outer walls during the movement. An additional cooling station is still required, resulting in defects such as mold waiting time, poor adaptability of the cooling mechanism, and low pass rate of multi-cavity products. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a lightweight upward-mounted robotic mold external cooling device for rapid air cooling of the inner and outer walls of the preform.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions: A lightweight upward-feeding manipulator mold external cooling device for rapid air cooling of the inner and outer walls of preforms includes a preform taking cylinder fixing plate, on which a plurality of preform taking cylinders are mounted. An air-suction type external wall air cooling structure communicating with the bottom of the preform taking cylinders is opened in the preform taking cylinder fixing plate. A rotary inner wall blowing mechanism is provided above the preform taking cylinder fixing plate, which is staggered with the preform taking cylinders and can rotate along the side close to or away from the top of the preform taking cylinders. Synchronous drive devices for driving the rotary inner wall blowing mechanism to rotate axially are provided at both ends of the preform taking cylinder fixing plate.

[0006] In the aforementioned lightweight upward-entry manipulator mold external cooling device for rapid air cooling of the inner and outer walls of the preform, the rotary inner wall blowing mechanism includes several gas supply pipes disposed above the preform taking cylinder fixing plate. The gas supply pipes are equipped with alignment blowing components. When the gas supply pipes rotate axially, the alignment blowing components can rotate synchronously along the side close to or away from the top of the preform taking cylinder. The synchronous drive device is connected to the gas supply pipes.

[0007] In the aforementioned lightweight upward-entry manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, the alignment blowing component includes several hook-shaped blowing pipes disposed on the main gas supply pipe, and the hook-shaped blowing pipes are connected to the main gas supply pipe.

[0008] In the aforementioned lightweight upward-feeding manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, the synchronous drive device includes fixed plates disposed at both ends of the preform taking cylinder fixed plate. The fixed plates are equipped with servo motors for driving the gas supply main pipe to rotate. The gas supply main pipe and the servo motor are connected by a synchronous transmission connector.

[0009] In the aforementioned lightweight upward-feeding manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, the synchronous transmission connector includes a rotating shaft, a synchronous pulley, and a transmission toothed belt. The rotating shaft is fixedly connected to the main gas supply pipe, and the synchronous pulley is fixedly connected to the rotating shaft. The rotating shaft of the servo motor is provided with a drive pulley, and the drive pulley and the synchronous pulley are driven by the synchronous pulley.

[0010] In the aforementioned lightweight upward-feeding manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, a bearing is installed between the fixed plate and the rotating shaft, and the rotating shaft is fixedly connected to the main gas supply pipe by welding.

[0011] In the aforementioned lightweight upward-feeding manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, the fixed plate and the preform removal cylinder fixed plate are fixed by support legs.

[0012] In the aforementioned lightweight upward-feeding manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, the rotating shaft has a hollow chamber inside, and an air nozzle is installed on the outside of the rotating shaft. One end of the hollow chamber is connected to the chamber of the main gas supply pipe, and the other end is connected to the air nozzle.

[0013] In the aforementioned lightweight upward-entry manipulator mold external cooling device for rapid air cooling of the inner and outer walls of the preform, the suction-type external wall air cooling structure includes an air channel disposed in the preform taking cylinder fixing plate, an air valve is installed between the bottom of the preform taking cylinder and the air channel, and the air channel passes through the preform taking cylinder fixing plate.

[0014] In the aforementioned lightweight upper-mounted manipulator external cooling device for rapid air cooling of the inner and outer walls of the preform, a manipulator is provided at the bottom of the preform taking cylinder fixing plate.

[0015] Compared with existing technologies, the advantages of this invention are: 1. The rotary inner wall blowing mechanism in this invention performs air blowing and cooling simultaneously during the process of the robot arm moving back to its original position after picking up the part, transforming the "part picking and moving time" into "effective cooling time". Compared with the existing step-by-step cooling mode, the cooling time is increased, which greatly improves the cooling efficiency.

[0016] 2. This invention adopts a single-station integrated structure, eliminating the dedicated cooling station and reducing auxiliary support parts, thus reducing the overall weight of the equipment. This not only reduces the cost of parts procurement and manufacturing, but also reduces the load on the robot arm, extends the service life of the robot arm, and the lightweight design allows it to be flexibly matched with injection molding machines of different tonnages.

[0017] 3. The rotary inner wall blowing mechanism in this invention is compatible with all molds with consistent cavity spacing. By manually or electrically rotating the rotary inner wall blowing mechanism, micro-adjustments can be achieved. It can be finely adjusted in real time according to the actual cooling state of the preform during injection molding (such as uneven local shrinkage and residual stress on the inner wall), ensuring uniform cooling of the inner wall of the multi-cavity preform and improving the qualification rate of multi-cavity products.

[0018] 4. The suction-type outer wall air-cooling structure and the rotary inner wall air-blowing mechanism in this invention work together. The outer wall forms an airflow circulation through circumferential suction and blowing, and the inner wall achieves all-round coverage through rotary blowing. Compared with a single cooling method, the temperature difference between the inner and outer walls of the preform is reduced, reducing defects such as product deformation and shrinkage marks.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a top view of the present invention.

[0022] Figure 3 yes Figure 2 A schematic diagram of section AA in the diagram.

[0023] Figure 4 yes Figure 2 A schematic diagram of the BB section.

[0024] Figure 5 This is a schematic diagram of a rotary inner wall blowing mechanism.

[0025] In the diagram: 1. Embryo taking cylinder fixing plate; 2. Embryo taking cylinder; 3. Suction-type outer wall air-cooling structure; 4. Rotary inner wall air blowing mechanism; 5. Synchronous drive device; 6. Air supply main pipe; 7. Alignment air blowing component; 8. Hook-shaped air blowing pipe; 9. Fixing plate; 10. Servo motor; 11. Synchronous transmission connector; 12. Rotary shaft; 13. Synchronous pulley; 14. Transmission toothed belt; 15. Bearing; 16. Support bracket; 17. Air nozzle; 18. Air channel; 19. Air valve; 20. Robotic arm. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a lightweight upward-feeding manipulator mold external cooling device for rapid air cooling of the inner and outer walls of preforms includes a preform taking cylinder fixing plate 1, on which a plurality of preform taking cylinders 2 are mounted. An air-suction type external wall air cooling structure 3 connected to the bottom of the preform taking cylinder 2 is opened in the preform taking cylinder fixing plate 1. A rotary inner wall blowing mechanism 4 is provided above the preform taking cylinder fixing plate 1, which is staggered with the preform taking cylinders 2 and can rotate along the side close to or away from the top of the preform taking cylinder 2. Synchronous drive devices 5 are provided at both ends of the preform taking cylinder fixing plate 1 for driving the rotary inner wall blowing mechanism 4 to rotate axially.

[0028] In this embodiment, the preform picking cylinder fixing plate 1 integrates the preform picking cylinder 2, cooling structure, and drive equipment, ensuring the relative positional accuracy of each component. The preform picking cylinder 2 is used to directly grasp and position the preform. Its inner wall can be designed as a fitted structure according to the shape of the preform, and stable grasping can be achieved with negative pressure adsorption or mechanical claws. The suction-type outer wall air-cooling structure 3 delivers cold air, forming a surrounding airflow on the outer wall of the preform. The rotary inner wall blowing mechanism 4 blows rotating airflow onto the inner wall of the preform. The synchronous drive equipment 5 provides precise rotational power to the rotary inner wall blowing mechanism 4. By integrating preform picking, inner and outer wall cooling, drive, and air path into the preform picking cylinder fixing plate 1, the independent cooling platform is eliminated, which not only reduces the cost of parts and the weight of equipment, but also transforms the originally ineffective movement time into effective cooling time, thereby extending the total cooling time and improving cooling efficiency.

[0029] Combination Figure 1-5 As shown, the rotary inner wall blowing mechanism 4 includes several gas supply pipes 6 disposed above the embryo-taking cylinder fixing plate 1. Each gas supply pipe 6 is provided with an alignment blowing component 7. When the gas supply pipe 6 rotates axially, the alignment blowing component 7 can rotate synchronously along the side close to or away from the top of the embryo-taking cylinder 2. The synchronous drive device 5 is connected to the gas supply pipe 6. The alignment blowing component 7 includes several hook-shaped blowing pipes 8 disposed on the gas supply pipe 6. The hook-shaped blowing pipes 8 are connected to the gas supply pipe 6.

[0030] Specifically, the main gas supply pipe 6 is a seamless 304 stainless steel pipe, with a length matching the length of the blank-taking cylinder fixing plate 1. It is horizontally arranged along the width direction of the blank-taking cylinder fixing plate 1, and both ends are connected to the fixing plate 9 via rotating shafts 12. Several threaded holes are evenly opened on the pipe wall of the main gas supply pipe 6 along its length, with the spacing consistent with the spacing of the blank-taking cylinder 2. The main gas supply pipe 6 serves as the main channel for airflow distribution, evenly delivering external cold air to each aligned air blowing component 7. The aligned air blowing component 7 converts the axial airflow of the main gas supply pipe 6 into radial airflow, distributing it to the hook-shaped air blowing pipe 8, while ensuring the installation and positioning of the air blowing pipe. Precision; The synchronous drive device 5 drives the gas supply main pipe 6 to rotate around its own axis, which drives the alignment blowing component 7 and the hook-shaped blowing pipe 8 to rotate synchronously, so that the blowing pipe forms a rotating airflow on the inner wall of the preform, achieving all-round coverage. The hook-shaped blowing pipe 8 is a 304 stainless steel capillary tube with an overall "L"-shaped hook structure and a hook angle of 135° (ensuring that the pipe opening faces the bottom of the inner wall of the preform and the airflow rises in a spiral). The hook-shaped blowing pipe 8 guides the cold air delivered by the gas supply main pipe 6 to the inner wall of the preform. The 135° hook design makes the airflow spiral upward from the bottom of the inner wall of the preform, carrying away the heat of the inner wall.

[0031] Combination Figure 1-5 As shown, the synchronous drive device 5 includes fixed plates 9 disposed at both ends of the embryo-taking cylinder fixed plate 1. The fixed plate 9 is provided with a servo motor 10 for driving the gas supply pipe 6 to rotate. The gas supply pipe 6 and the servo motor 10 are connected by a synchronous transmission connector 11. The synchronous transmission connector 11 includes a rotating shaft 12, a synchronous pulley 13, and a transmission toothed belt 14. The rotating shaft 12 is fixedly connected to the gas supply pipe 6, and the synchronous pulley 13 is fixedly connected to the rotating shaft 12. The rotating shaft of the servo motor 10 is provided with a drive pulley 14, and the drive pulley 14 and the synchronous pulley 13 are driven by the synchronous pulley 13.

[0032] In this embodiment, the fixing plate 9 provides mounting support for the servo motor 10, the rotating shaft 12, and the bearing 15, and the oblong hole design enables fine-tuning of the height; the servo motor 10 receives PLC control signals and outputs precise speed and torque, achieving closed-loop speed control through an encoder; the synchronous transmission connector 11 transmits the rotational power of the servo motor 10 to the main air supply pipe 6, ensuring the stability and accuracy of power transmission, while the bearing 15 reduces the frictional resistance of the rotating shaft 12; the rotating shaft 12 has dual functions of "power transmission" and "airflow channel", both transmitting the rotational power of the servo motor 10 to drive the rotation of the main air supply pipe 6, and also... External cold air is delivered to the main gas supply pipe 6 through the hollow cavity; the synchronous pulley 13, the drive pulley 14 and the transmission toothed belt 14 cooperate to achieve smooth power transmission and ensure that the rotation speed of the main gas supply pipe 6 is consistent with the output speed of the servo motor 10; the hollow cavity is designed inside the rotating shaft 12 to realize the integration of "power transmission + airflow delivery", which completely solves the problems of independent air passage pipe entanglement and wear, while simplifying the structure and reducing the number of parts; the axial positioning design of the retaining ring of the synchronous pulley 13 avoids tooth slippage and improves transmission stability; the adjustable tension design of the transmission toothed belt 14 allows for precise control of tension.

[0033] Combination Figure 1-5 As shown, a bearing 15 is installed between the fixed plate 9 and the rotating shaft 12, and the rotating shaft 12 is fixedly connected to the gas supply main pipe 6 by welding.

[0034] In this embodiment, the bearing 15 reduces the friction between the rotating shaft 12 and the fixed plate 9, allowing the rotating shaft 12 to rotate flexibly; the double-sided seal and bearing end cap design protect the internal grease of the bearing from leakage, prevent external impurities from entering, and extend the service life of the bearing; the welding and fixing of the rotating shaft 12 to the gas transmission main pipe 6 ensures the rigidity of power transmission and the sealing of the airflow channel; the stress-relief annealing treatment ensures the dimensional stability of the rotating shaft 12 and avoids deformation after long-term rotation.

[0035] The fixing plate 9 and the embryo-taking cylinder fixing plate 1 are fixed together by the support bracket 16.

[0036] In this embodiment, the support frame 16 serves as a connecting bridge, rigidly connecting the fixing plate 9 to the embryo-taking cylinder fixing plate 1, providing stable support for the synchronous drive device 5 and the rotary inner wall blowing mechanism 4.

[0037] Combination Figure 1-5 As shown, the rotating shaft 12 has a hollow chamber inside, and an air nozzle 17 is installed on the outside of the rotating shaft 12. One end of the hollow chamber is connected to the chamber of the gas supply main pipe 6, and the other end is connected to the air nozzle 17.

[0038] In this embodiment, the air nozzle 17 serves as the connection interface between the external cold air pipeline and the rotating shaft 12, enabling the input of cold air. The hollow chamber of the rotating shaft 12 delivers cold air from the fixed air nozzle 17 to the rotating main air supply pipe 6, achieving a seamless connection between the "fixed air path and the rotating air path". The air nozzle 17 is a quick-connect type air nozzle (model PC8-02) with a built-in one-way sealing valve, connecting to the external cold air pipeline. The threaded connection between the air nozzle 17 and the rotating shaft 12 is wrapped with PTFE sealing tape to ensure airtightness.

[0039] Combination Figure 1-5 As shown, the air-cooled outer wall structure 3 includes an air channel 18 disposed in the embryo-taking cylinder fixing plate 1. An air valve 19 is installed between the bottom of the embryo-taking cylinder 2 and the air channel 18. The air channel 18 passes through the embryo-taking cylinder fixing plate 1.

[0040] In this embodiment, the air channel 18 is formed inside the preform cylinder fixing plate 1 by CNC drilling. It is divided into annular main pipe and branch pipes. The annular main pipe is distributed along the edge of the preform cylinder fixing plate 1 and has external threaded interfaces (M16) at both ends for connecting to external negative pressure / blowing equipment. The branch pipes extend vertically upward from the annular main pipe. Each preform cylinder 2 corresponds to several branch pipes, which are evenly distributed around the circumference of the preform cylinder 2. The annular main pipe of the air channel 18 is responsible for distributing cold air, and the branch pipes guide the cold air to the outer wall of the preform, forming a surrounding airflow. The ventilation valve 19 receives the PLC control signal to adjust the on / off state and flow rate of the airflow, so as to achieve precise control of the cooling of the outer wall. The external negative pressure equipment can draw hot air from the outer wall of the preform through the air channel 18 to form a "blowing-suction" airflow cycle, which accelerates heat exchange.

[0041] Combination Figure 1-5 As shown, a robotic arm 20 is provided at the bottom of the embryo-taking cylinder fixing plate 1.

[0042] In this embodiment, the robotic arm 20 provides the movement and positioning power for the entire device, driving the blank-taking cylinder fixing plate 1 and integrated components to complete the actions of picking up the part (mold cavity → blank-taking cylinder 2), moving (mold → placement position), and placing the part (blank-taking cylinder 2 → conveying equipment).

[0043] The working principle of this invention is: Based on the number and spacing of the mold cavities, adjust the installation position of the preform extraction cylinder 2 on the preform extraction cylinder fixing plate 1 to ensure that the preform extraction cylinder 2 corresponds one-to-one with the mold cavity; by rotating the rotating shaft 12 of the rotary inner wall blowing mechanism 4, fine-tune the position of the hook-shaped blowing pipe 8 so that each blowing pipe is precisely aligned with the center of the corresponding preform extraction cylinder 2; according to the preform material and specifications, set the airflow magnitude of the vent valve 19 and the rotation speed of the synchronous drive device 5 through the injection molding machine control system; after the injection molding machine completes the preform injection, the preform cools in the mold to the critical point for removal (temperature approximately 80-90℃, already solidified). (Non-stick and non-deformable) The injection molding machine sends an opening signal. After the mold opens to the correct position, it sends a part-removal signal to the robot arm 20. The robot arm 20 moves the preform removal cylinder fixing plate 1 to the top of the mold cavity, and then descends. The preform removal cylinder 2 adheres to the top of the preform and is gripped by negative pressure adsorption or mechanical clamping. After gripping, the robot arm 20 moves the preform upward and begins to move towards the preset placement position. At the same time, the injection molding machine control system sends a cooling start signal, the vent valve 19 opens, and the external high-pressure cold air pipeline supplies air to the two air lines through the main air supply pipe 6. External wall cooling: cold air is supplied through the main air supply pipe. The branch pipe of the main pipe 6 enters the air channel 18 of the suction-type outer wall air-cooling structure 3, and blows towards the outer wall of the preform through multiple surrounding air nozzles 17, forming a ring airflow circulation, which quickly removes the heat from the outer wall of the preform, causing the outer wall temperature to gradually drop to 40-50℃; inner wall cooling: the servo motor 10 of the synchronous drive device 5 starts, and drives the rotating shaft 12 to rotate through the synchronous pulley 13 and the transmission toothed belt 14, which in turn drives the hook-shaped air blowing pipe 8 of the rotary inner wall air blowing mechanism 4 to rotate; the cold air enters the alignment air blowing component 7 through another branch pipe of the main gas supply pipe 6, and is blown towards the outer wall of the preform through the hook-shaped air blowing pipe 8. On the inner wall of the preform, the rotating air blowing pipe evenly covers all areas of the inner wall with cold air, forming a spiral airflow to enhance heat exchange, and the inner wall temperature drops to 45-55℃ simultaneously; when the robot arm 20 moves to the placement position, the inner and outer walls of the preform have been completely cooled to the shaping temperature (≤55℃), the injection molding machine control system sends a cooling stop signal, the air valve 19 closes, and the synchronous drive device 5 stops working; the preform take-up cylinder 2 releases the preform, and the preform falls into the subsequent conveying equipment; then the robot arm 20 resets, ready for the next take-up, while the mold has completed the mold closing after the robot arm takes up the part and the next injection molding production begins.

[0044] The specific embodiments described herein are merely illustrative examples of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention.

[0045] Although this paper frequently uses terms such as embryo-taking cylinder fixing plate 1, embryo-taking cylinder 2, suction-type outer wall air-cooling structure 3, rotary inner wall air-blowing mechanism 4, synchronous drive device 5, air supply main pipe 6, alignment air-blowing component 7, hook-shaped air-blowing pipe 8, fixing plate 9, servo motor 10, synchronous transmission connector 11, rotating shaft 12, synchronous pulley 13, transmission toothed belt 14, bearing 15, support bracket 16, air nozzle 17, air channel 18, air valve 19, and robotic arm 20, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A lightweight mechanical hand mold outer cooling device for rapid air cooling of the inner and outer walls of a bottle embryo, comprising an embryo taking cylinder fixing plate (1), characterized in that, The embryo taking cylinder fixing plate (1) is provided with a plurality of embryo taking cylinders (2), the embryo taking cylinder fixing plate (1) is provided with a suction type outer wall air cooling structure (3) communicated with the bottom of the embryo taking cylinder (2), the top of the embryo taking cylinder fixing plate (1) is provided with a rotating inner wall air blowing mechanism (4) staggered with the embryo taking cylinder (2) and rotatable towards or away from the top of the embryo taking cylinder (2), and the both ends of the embryo taking cylinder fixing plate (1) are provided with synchronous driving devices (5) for driving the rotating inner wall air blowing mechanism (4) to rotate axially.

2. The apparatus for rapid cooling of the inner and outer walls of the parison according to claim 1, characterized in that, The rotating inner wall air blowing mechanism (4) comprises a plurality of gas conveying main pipes (6) arranged above the embryo taking cylinder fixing plate (1), the gas conveying main pipe (6) is provided with an alignment air blowing piece (7), when the gas conveying main pipe (6) rotates axially, the alignment air blowing piece (7) can rotate synchronously towards or away from the top of the embryo taking cylinder (2), and the synchronous driving device (5) is connected with the gas conveying main pipe (6).

3. The outer cooling device of the inner and outer wall rapid air cooling light weight up mechanical hand mold of the bottle embryo according to claim 2, characterized in that, The alignment air blowing piece (7) comprises a plurality of hook-shaped air blowing pipes (8) arranged on the gas conveying main pipe (6), and the hook-shaped air blowing pipe (8) is communicated with the gas conveying main pipe (6).

4. The outer cooling device of the outer and inner wall of the bottle embryo for rapid air cooling of the lightweight upper mechanical hand mold according to claim 3, characterized in that, The synchronous driving device (5) comprises a fixing plate (9) arranged at the both ends of the embryo taking cylinder fixing plate (1), the fixing plate (9) is provided with a servo motor (10) for driving the gas conveying main pipe (6) to rotate, and the gas conveying main pipe (6) and the servo motor (10) are connected through a synchronous transmission connecting piece (11).

5. The device as claimed in claim 4, wherein the device is characterized in that, The synchronous transmission connecting piece (11) comprises a rotating shaft (12), a synchronous pulley (13) and a transmission toothed belt (14), the rotating shaft (12) is fixedly connected with the gas conveying main pipe (6), the synchronous pulley (13) is fixedly connected with the rotating shaft (12), the rotating shaft of the servo motor (10) is provided with a driving pulley (14), and the driving pulley (14) and the synchronous pulley (13) are driven through the synchronous pulley (13).

6. The outer cooling device for the outer and inner wall of the bottle preform and the quick air cooling of the mechanical hand of the upper feeding machine according to claim 5, characterized in that, A bearing (15) is arranged between the fixing plate (9) and the rotating shaft (12), and the rotating shaft (12) is fixedly connected with the gas conveying main pipe (6) through welding.

7. The outer cooling device of the outer and inner wall of the bottle embryo and the quick air cooling of the lightweight upper mechanical hand mold according to claim 6, characterized in that, The fixing plate (9) and the embryo taking cylinder fixing plate (1) are fixed through support legs (16).

8. The outer cooling device for the outer wall of the bottle preform according to claim 6 or 7, wherein The rotating shaft (12) has a hollow cavity, the rotating shaft (12) is provided with an air nozzle (17) on the outside, one end of the hollow cavity is communicated with the cavity of the gas conveying main pipe (6), and the other end is communicated with the air nozzle (17).

9. The device as claimed in claim 1, wherein said device is characterized in that, The suction type outer wall air cooling structure (3) comprises a gas hole (18) arranged in the embryo taking cylinder fixing plate (1), a gas valve (19) is arranged between the bottom of the embryo taking cylinder (2) and the gas hole (18), and the gas hole (18) penetrates through the embryo taking cylinder fixing plate (1).

10. The fast air cooling of inner and outer wall of bottle preform and light weight up mechanical hand mold outer cooling device according to claim 1, characterized in that, The bottom of the embryo taking cylinder fixing plate (1) is provided with a mechanical hand (20).

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