Mold closing mechanism for all-electric bottle blowing machine

Abstract

The utility model relates to the technical field of mold closing mechanisms of bottle blowing machines, in particular to a mold closing mechanism for a full-electric bottle blowing machine, which comprises a frame, a sleeve fixedly mounted on the frame, a guide rod slidably arranged in the sleeve in a penetrating manner, a left cross arm and a right cross arm fixedly mounted at two ends of the guide rod, and a left mold plate and a right mold plate slidably connected onto the guide rod. A servo motor is mounted on the mounting frame and is in driving connection with a driving crank, two ends of the driving crank are rotationally connected with driven cranks, one end of each driven crank is rotationally connected with a connecting seat, the two connecting seats are fixedly mounted on the right cross arm and the right mold plate respectively, and a synchronous linkage mechanism is arranged between the right mold plate and the left mold plate; a connecting rod and an abutting block are arranged at the bottom of the right cross arm, a template parallelism adjusting assembly is arranged between the abutting block and the bottom of the left cross arm, and a template distance fine adjustment assembly is arranged between the left template and the left cross arm; the utility model solves the problems of high hydraulic drive energy consumption, standby energy consumption, environmental pollution caused by oil leakage, complex maintenance and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of mold closing mechanism for blow molding machines, and more specifically to a mold closing mechanism for an all-electric blow molding machine. Background Technology

[0002] In the field of blow molding machines, traditional mold clamping mechanisms widely use hydraulic cylinders as the power drive. However, this traditional technology has many significant drawbacks, which seriously restrict the performance improvement of blow molding machines and the sustainable development of the industry.

[0003] From an energy consumption perspective, hydraulic pumps need to run continuously to maintain pressure in hydraulic systems. Even when the equipment is in standby mode, it continues to consume a large amount of energy, resulting in low overall energy efficiency. This not only increases production costs but also contradicts the energy-saving principles advocated by modern society. In terms of environmental protection, hydraulic oil poses a high risk of leakage. Once a leak occurs, it not only pollutes the production environment but also requires high costs for oil replacement and treatment, running counter to the trend of modern green manufacturing. This is especially true in industries with extremely high requirements for cleanliness, such as food and pharmaceuticals, where the hazards of hydraulic oil leaks are even more pronounced. The complexity of maintenance is also a major drawback of traditional hydraulically driven mold-closing mechanisms. Hydraulic systems require regular replacement of oil, filters, seals, and other components, resulting in high maintenance costs. Moreover, troubleshooting is difficult when malfunctions occur; problems such as pipe blockages and valve failures often require significant time and manpower for diagnosis and repair. Regarding control precision, the response speed of hydraulic systems is significantly affected by oil viscosity and temperature, making it difficult to guarantee the position and speed control precision of the mold-closing mechanism. Unstable mold closing action directly affects the consistency of blow molding products, reduces product quality, increases defect rate, and makes it difficult for companies to gain an advantage in market competition. Utility Model Content

[0004] The purpose of this utility model is to provide a mold closing mechanism for an all-electric blow molding machine, which overcomes the above-mentioned defects of the traditional hydraulically driven mold closing mechanism, so as to meet the requirements of energy saving, environmental protection, high-precision control and low maintenance cost.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A mold clamping mechanism for a fully electric blow molding machine includes a frame, on which a sleeve is fixedly mounted. A guide rod passes through the sleeve via a sliding bearing. A left cross arm and a right cross arm are fixedly mounted at both ends of the guide rod, respectively. A left template and a right template are slidably connected to the guide rod. A mounting bracket is provided between the right template and the right cross arm. The mounting bracket is fixedly mounted on the top of the sleeve. A servo motor is mounted on the mounting bracket. The output shaft of the servo motor is fixedly connected to a driving crank. Both ends of the driving crank are rotatably connected to driven cranks. A connecting seat is rotatably connected to the end away from the active crank. One connecting seat is fixedly installed on the right cross arm, and the other connecting seat is fixedly installed on the right template. A synchronous linkage mechanism is provided between the right template and the left template. The synchronous linkage mechanism is installed on the frame. A connecting rod is horizontally fixedly connected to the bottom of the right cross arm. An abutment block is fixedly connected to the end of the connecting rod near the left cross arm. A template parallelism adjustment component is provided between the abutment block and the bottom of the left cross arm. A template spacing fine adjustment component is provided between the left template and the left cross arm.

[0007] Furthermore, the synchronous linkage mechanism includes a fixed connecting plate and two synchronous connecting plates. The middle part of the fixed connecting plate is rotatably mounted on the vehicle frame. The two ends of the fixed connecting plate are rotatably connected to one end of the two synchronous connecting plates, and the other ends of the two synchronous connecting plates are rotatably connected to the left template and the right template, respectively.

[0008] Furthermore, the template parallelism adjustment assembly includes a fastening screw, which is threadedly connected to the left cross arm, the abutment block, and the connecting rod. Two adjusting blocks are symmetrically arranged between the left cross arm and the abutment block. The two sides of the adjusting blocks abut against the left cross arm and the abutment block, respectively. A fine-tuning screw is threaded between the two adjusting blocks. A first inclined surface is provided on the side of the adjusting block near the abutment block, and a second inclined surface is provided on the abutment block near the adjusting block. The adjusting block abuts against the second inclined surface through the first inclined surface, causing the abutment block to move away from or closer to the left cross arm.

[0009] Furthermore, an installation groove is provided on the side of the left cross arm away from the left template; the template spacing fine-tuning component includes an adjusting screw threaded to the bottom of the installation groove, a driving gear fixedly connected to the bottom of the adjusting screw, a driven gear rotatably disposed on the left cross arm that meshes with the driving gear, an adjusting screw horizontally fixedly connected to the driven gear, a fixing nut threadedly connected to the adjusting screw, and the fixing nut fixedly installed on the left template.

[0010] Furthermore, a pressure sensor is installed between the right template and the connecting seat.

[0011] Furthermore, a left mold and a right mold are respectively installed on opposite sides of the left template and the right template.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention uses a servo motor instead of a traditional hydraulic cylinder as the power source, solving problems such as high energy consumption, standby energy consumption, oil leakage causing environmental pollution, and complex maintenance associated with hydraulic drives. The servo motor only consumes energy during operation, significantly improving energy efficiency. It also avoids the risk of hydraulic oil leakage, meeting environmental protection requirements, and its simple structure reduces maintenance costs. Through a crank structure consisting of an active crank, a driven crank, and a connecting seat, combined with a synchronous linkage mechanism, the right and left mold plates can smoothly perform mold opening and closing movements, ensuring the stability of the mold closing action and helping to improve the consistency and quality of blown bottle products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0017] Figure 4 This is a partial structural diagram of the present invention. Figure 2 ;

[0018] Figure 5 This is a partial structural diagram of the present invention. Figure 3 .

[0019] 1. Chassis; 2. Sleeve; 3. Guide rod; 4. Left cross arm; 401. Mounting slot; 5. Right cross arm; 6. Left template; 7. Right template; 8. Mounting bracket; 9. Servo motor; 10. Driven crank; 11. Driven crank; 12. Connecting seat; 13. Connecting rod; 14. Abutment block; 15. Fixed connecting plate; 16. Synchronous connecting plate; 17. Fastening screw; 18. Adjusting block; 19. Fine-tuning screw; 20. Adjusting screw; 21. Drive gear; 22. Driven gear; 23. Adjusting screw; 24. Fixing nut; 25. Pressure sensor. Detailed Implementation

[0020] like Figures 1 to 5As shown, a mold clamping mechanism for a fully electric blow molding machine includes a frame 1. A sleeve 2 is fixedly mounted on the frame 1. A guide rod 3 passes through the sleeve 2 via a sliding bearing. A left cross arm 4 and a right cross arm 5 are fixedly mounted at both ends of the guide rod 3, respectively. A left template 6 and a right template 7 are slidably connected to the guide rod 3. A mounting bracket 8 is provided between the right template 7 and the right cross arm 5. The mounting bracket 8 is fixedly mounted on the top of the sleeve 2. A servo motor 9 is mounted on the mounting bracket 8. The output shaft of the servo motor 9 is fixedly connected to a driving crank 10. Both ends of the driving crank 10 are rotatably connected to driven cranks 11. A connecting seat 12 is rotatably connected to the end of the crank 10 away from the crank 11. One connecting seat 12 is fixedly installed on the right cross arm 5, and the other connecting seat 12 is fixedly installed on the right template 7. A synchronous linkage mechanism is provided between the right template 7 and the left template 6. The synchronous linkage mechanism is installed on the frame 1. A connecting rod 13 is horizontally fixedly connected to the bottom of the right cross arm 5. An abutment block 14 is fixedly connected to the end of the connecting rod 13 near the left cross arm 4. A template parallelism adjustment component is provided between the abutment block 14 and the bottom of the left cross arm 4. A template spacing fine adjustment component is provided between the left template 6 and the left cross arm 4.

[0021] During operation, the servo motor 9 starts and drives the active crank 10 to rotate. The active crank 10 drives the driven cranks 11 at both ends to move. The driven cranks 11 drive the right template 7 and the right cross arm 5 to separate or move closer to each other through the connecting seat 12. When the right template 7 moves, it drives the left template 6 to move synchronously through the synchronous linkage mechanism, so as to realize the synchronous opening and closing action of the right template 7 and the left template 6.

[0022] The synchronous linkage mechanism includes a fixed connecting plate 15 and two synchronous connecting plates 16. The middle part of the fixed connecting plate 15 is rotatably mounted on the frame 1. The two ends of the fixed connecting plate 15 are rotatably connected to one end of the two synchronous connecting plates 16, and the other ends of the two synchronous connecting plates 16 are rotatably connected to the left template 6 and the right template 7, respectively. When the servo motor 9 drives the right template 7 to move, the right template 7 drives the synchronous connecting plate 16 to move, and the synchronous connecting plate 16 drives the fixed connecting plate 15 to rotate, thereby driving the synchronous connecting plate 16 on the other side to make the left template 6 move synchronously. This ensures the synchronicity of the left template 6 and the right template 7 during the mold opening and closing process, avoids mold closing deviation caused by asynchronous template movement, and improves the precision and quality of blow molding products.

[0023] The template parallelism adjustment assembly includes a fastening screw 17, which is threadedly connected to the left cross arm 4, the abutment block 14, and the connecting rod 13. Two adjusting blocks 18 are symmetrically arranged between the left cross arm 4 and the abutment block 14. The two sides of each adjusting block 18 abut against the left cross arm 4 and the abutment block 14, respectively. A fine-tuning screw 19 is threaded between the two adjusting blocks 18. A first inclined surface is provided on the side of each adjusting block 18 near the abutment block 14, and a second inclined surface is provided on the side of each abutment block 14 near the adjusting block 18. The adjusting block 18 abuts against the second inclined surface through the first inclined surface, causing the abutment block 14 to move away from or closer to the second inclined surface. Near the left cross arm 4; rotate the fine-tuning screw 19 to move the two adjusting blocks 18 relative to each other. Since the first inclined surface of the adjusting block 18 abuts against the second inclined surface of the abutting block 14, the movement of the adjusting block 18 will cause the abutting block 14 to move away from or closer to the left cross arm 4, thereby achieving fine-tuning of the distance between the bottom of the right cross arm 5 and the left cross arm 4. The relative position between the right cross arm 5 and the left cross arm 4 changes. The left cross arm 4 is connected to the left template 6 through the template spacing fine-tuning component, thereby changing the relative position between the left template 6 and the right template 7, thereby achieving fine-tuning of the parallelism of the left and right templates, improving the assembly accuracy of the mold closing mechanism and the quality of blown bottle products.

[0024] A mounting groove 401 is provided on the side of the left cross arm 4 away from the left template 6. The template spacing fine-tuning component includes an adjusting screw 20 threadedly connected to the bottom of the mounting groove 401. A drive gear 21 is fixedly connected to the bottom of the adjusting screw 20. A driven gear 22 that meshes with the drive gear 21 is rotatably mounted on the left cross arm 4. An adjusting screw 23 is horizontally fixedly connected to the driven gear 22. A fixing nut 24 is threadedly connected to the adjusting screw 23. The fixing nut 24 is fixedly mounted on the left template 6. Rotating the adjusting screw 20 drives the drive gear 21 to rotate. The drive gear 21 meshes with the driven gear 22, causing the driven gear 22 to rotate, which in turn drives the adjusting screw 23 to rotate. The fixing nut 24 on the adjusting screw 23 is fixed to the left template 6. The rotation of the adjusting screw 23 changes the distance between the left template 6 and the left cross arm 4, thereby achieving fine-tuning of the spacing between the left template 6 and the right template 7 when the mold is closed.

[0025] A pressure sensor 25 is installed between the right template 7 and the connecting seat 12; the pressure sensor 25 monitors the clamping force in real time and adjusts the clamping force in conjunction with the template spacing fine-tuning component.

[0026] The left template 6 and the right template 7 are respectively installed on opposite sides of the left mold and the right mold.

[0027] This invention replaces the hydraulic cylinder with a servo motor 9, eliminating the energy consumption problem and oil leakage pollution risk of the hydraulic system, meeting energy conservation and environmental protection requirements, and is especially suitable for the food and pharmaceutical industries with high environmental requirements; the setting of the servo motor 9 and various adjustment components, through the real-time feedback of the mold closing force by the pressure sensor 25, forms a closed loop of the control system, realizing high-precision position and speed control of the mold closing mechanism, improving the repeatability of mold closing and the quality of blown bottle products, and reducing the defect rate; the electric drive system has a simple structure, which reduces complex pipelines and oil management compared with the hydraulic system, reduces maintenance costs, and shortens maintenance time.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold closing mechanism for an all-electric bottle blowing machine, characterized by: The system includes a frame (1), on which a sleeve (2) is fixedly mounted. A guide rod (3) passes through the sleeve (2) via a sliding bearing. A left cross arm (4) and a right cross arm (5) are fixedly mounted at both ends of the guide rod (3). A left template (6) and a right template (7) are slidably connected to the guide rod (3). A mounting bracket (8) is provided between the right template (7) and the right cross arm (5). The mounting bracket (8) is fixedly mounted on the top of the sleeve (2). A servo motor (9) is mounted on the mounting bracket (8). The output shaft of the servo motor (9) is fixedly connected to a drive crank (10). Both ends of the drive crank (10) are rotatably connected to driven cranks (11). The driven cranks (11) are located away from the drive crank. One end of the crank (10) is rotatably connected to a connecting seat (12). One connecting seat (12) is fixedly installed on the right cross arm (5), and the other connecting seat (12) is fixedly installed on the right template (7). A synchronous linkage mechanism is provided between the right template (7) and the left template (6). The synchronous linkage mechanism is installed on the frame (1). A connecting rod (13) is horizontally fixedly connected to the bottom of the right cross arm (5). An abutment block (14) is fixedly connected to one end of the connecting rod (13) near the left cross arm (4). A template parallelism adjustment component is provided between the abutment block (14) and the bottom of the left cross arm (4). A template spacing fine adjustment component is provided between the left template (6) and the left cross arm (4).

2. The clamp mechanism for an all-electric bottle blowing machine according to claim 1, characterized in that: The synchronous linkage mechanism includes a fixed connecting plate (15) and two synchronous connecting plates (16). The middle part of the fixed connecting plate (15) is rotatably mounted on the frame (1). The two ends of the fixed connecting plate (15) are rotatably connected to one end of the two synchronous connecting plates (16), and the other ends of the two synchronous connecting plates (16) are rotatably connected to the left template (6) and the right template (7), respectively.

3. The clamp mechanism for an all-electric bottle blowing machine according to claim 1, characterized in that: The template parallelism adjustment assembly includes a fastening screw (17), which is threadedly connected to the left cross arm (4), the abutment block (14), and the connecting rod (13). Two adjusting blocks (18) are symmetrically arranged between the left cross arm (4) and the abutment block (14). The two sides of the adjusting block (18) abut against the left cross arm (4) and the abutment block (14) respectively. A fine-tuning screw (19) is threaded between the two adjusting blocks (18). A first inclined surface is provided on the side of the adjusting block (18) near the abutment block (14), and a second inclined surface is provided on the side of the abutment block (14) near the adjusting block (18). The adjusting block (18) abuts against the second inclined surface through the first inclined surface, causing the abutment block (14) to move away from or closer to the left cross arm (4).

4. The clamp mechanism for an all-electric bottle blowing machine according to claim 1, characterized in that: The left cross arm (4) has an installation groove (401) on the side away from the left template (6); the template spacing fine adjustment component includes an adjusting screw (20) threaded to the bottom of the installation groove (401), a driving gear (21) fixedly connected to the bottom of the adjusting screw (20), a driven gear (22) rotatably disposed on the left cross arm (4) and meshing with the driving gear (21), an adjusting screw (23) horizontally fixedly connected to the driven gear (22), a fixing nut (24) threadedly connected to the adjusting screw (23), and the fixing nut (24) fixedly installed on the left template (6).

5. The clamp mechanism for an all-electric bottle blowing machine according to claim 4, characterized in that: A pressure sensor (25) is installed between the right template (7) and the connecting seat (12).

6. The clamp mechanism for an all-electric bottle blowing machine according to claim 1, characterized in that: The left template (6) and the right template (7) are respectively equipped with a left mold and a right mold on opposite sides.

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