Single-servo crank arm type bottom die linkage belt pressurizing die closing mechanism

Abstract

A single servo crank arm type bottom die linkage and pressurizing die closing mechanism comprises a bottom plate and a top plate, two sides of the bottom plate are respectively provided with a fixed die plate, the two fixed die plates are respectively connected with a movable die plate through a group of hinges, the two movable die plates are respectively provided with a half die which is oppositely matched with each other, a bottom die is arranged below the two half dies, and the bottom plate is connected with the bottom plate through a group of hinges. The lower portions of the two sets of hinges are respectively connected with a driving arm, the two driving arms penetrate through the bottom plate and are respectively connected with a rotating arm, the two rotating arms are respectively provided with a rotating pin, corresponding bearing seats are arranged on the bottom face of the bottom plate, the rotating pins are connected with the bearing seats through bearings, and the two rotating pins are connected through a long linkage arm and a short linkage arm. A linkage long arm is arranged on the bottom face of the bottom plate, a swing arm is connected to the linkage long arm, a servo motor is further arranged on the bottom face of the bottom plate, an output shaft of the servo motor is connected with a driving arm, the driving arm is connected with the swing arm, and a linkage mechanism is arranged between one movable mold plate and the bottom mold.

Description

Technical Field

[0001] The utility model relates to a bottle blowing machine, in particular to a single-servo crank-arm bottom mold linkage belt pressurizing mold clamping mechanism for the bottle blowing machine, belonging to the field of plastic machinery. Background Art

[0002] Blow molding machine is a common equipment used to produce plastic hollow containers (such as mineral water bottles, beverage bottles and oil bottles, etc.). It mainly consists of a heating device, a conveying mechanism and a stretch-blow mechanism. The stretch-blow mechanism is provided with a stretch-blow mold, and the stretch-blow mold is driven to open and close by a clamping mechanism. At present, there are many technical solutions for the clamping mechanism of the blow molding machine, one of which is a two-way opening and closing mold, such as the publication No.

[0003] CN104129068A discloses a "mold opening and closing device for a bottle blowing machine". The mold opening and closing device uses a driving seat to drive the left and right bottle body molds to open and close, and also drives the left and right locking mold plates to rise and fall. The left and right locking mold plates can be lifted and lowered to achieve mold locking or demolding. However, this solution cannot drive the bottom mold to be linked, and cannot achieve automatic demolding for hollow containers with features on the bottom, and cannot meet the requirements of existing high-speed production. Summary of the invention

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a high-efficiency and energy-saving single-servo crank-arm bottom mold linkage with pressurized mold clamping mechanism with fast mold opening and closing speed, bottom mold linkage and high operating stability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A single-servo crank-arm bottom mold linkage with booster clamping mechanism comprises a bottom plate and a top plate, a fixed mold plate is arranged on each side of the bottom plate, the two fixed mold plates are respectively connected to a movable mold plate through a set of hinges, a half mold that matches each other is arranged on each of the two movable mold plates, a bottom mold is arranged under the two half molds, a driving arm is respectively connected under the two sets of hinges, the two driving arms pass through the bottom plate and are respectively connected to a rotating arm, a rotating pin is respectively arranged on the two rotating arms, a corresponding bearing seat is arranged on the bottom surface of the bottom plate, the rotating pin is connected to the bearing seat through a bearing, the two rotating pins are connected by a linkage long arm and a linkage short arm, and a swing arm is connected to the linkage long arm, a servo motor is also arranged on the bottom surface of the bottom plate, the output shaft of the servo motor is connected to the active arm, the active arm is connected to the swing arm, and a linkage mechanism is arranged between one of the movable mold plates and the bottom mold.

[0007] Furthermore, the linkage mechanism includes a lifting guide plate connected under one of the movable mold plates, a lifting guide curved groove is arranged on the lifting guide plate, a bottom mold fixing plate is connected under the bottom mold, a roller is arranged on the bottom mold fixing plate, and the roller cooperates with the lifting guide curved groove.

[0008] Further, a connecting block is provided under one of the moving templates, a connecting plate is provided under the connecting block, and the connecting plate is connected to the lifting guide plate.

[0009] Further, a bottom die lifting plate is connected under the bottom die fixing plate, a guide sleeve is provided on the bottom die lifting plate, and a guide rod is also connected under the bottom die fixing plate, and the guide rod is matched with the guide sleeve.

[0010] Further, pressure boosting plates are respectively provided on the two fixed templates and are hinged to the pressure boosting plates.

[0011] In the single-servo crank-arm type bottom die linkage with pressure boosting mold clamping mechanism of the present utility model, during operation, the servo motor drives the swing arm through the active arm, the swing arm drives the linkage long arm and the linkage short arm to rotate, when the linkage long arm and the linkage short arm rotate, they drive the rotating arm to swing through the rotating pin, and then the rotating arm drives the hinge to open and close through the driving arm, and the hinge 4 drives the moving template to open and close, thereby realizing the opening or closing of the two half molds. At the same time, since a linkage mechanism is provided between one of the moving templates and the bottom die, when the moving template opens and closes, the bottom die is driven to move up and down through the linkage mechanism, realizing the linkage opening and closing of the bottom die. This solution uses the servo motor as the driving power, and through the crank-arm type transmission structure, realizes the linkage opening and closing of the moving template and the bottom die, with fast speed, high precision, stable operation, high efficiency and energy saving, meeting the requirements of high-speed production. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present utility model;

[0013] Figure 2 is the three-dimensional schematic diagram of the present utility model;

[0014] Figure 3 is the schematic diagram of the linkage mechanism of the present utility model. Detailed Embodiments

[0015] The following further elaborates on the present utility model in detail in conjunction with the drawings in the specification and specific embodiments.

[0016] Embodiment 1, Figure 1 — Figure 3As shown in the figure, a single servo crank - type bottom die linkage with a pressurized die - closing mechanism includes a bottom plate 1 and a top plate 2. On both sides of the bottom plate, a fixed template 3 is provided respectively. Each of the two fixed templates 3 is connected to a movable template 5 through a set of hinges 4. On each of the two movable templates 5, a semi - die 6 that cooperates with each other is provided. Under the two semi - dies, a bottom die 7 is provided. Under each of the two sets of hinges 4, a driving arm 8 is connected respectively. The two driving arms pass through the bottom plate and are each connected to a rotating arm 9. On each of the two rotating arms 9, a rotating pin 12 is provided. On the bottom surface of the bottom plate 1, corresponding bearing seats 13 are provided. The rotating pin 12 is connected to the bearing seat 13 through a bearing 15. Between the two rotating pins 12, a linkage long arm 16 and a linkage short arm 17 are connected, and a swing arm 18 is connected to the linkage long arm 16. On the bottom surface of the bottom plate 1, a servo motor 19 is also provided. On the output shaft of the servo motor, a driving arm 20 is connected. The driving arm 20 is connected to the swing arm 18, and a linkage mechanism is provided between one of the movable templates 5 and the bottom die 7.

[0017] During operation, the servo motor 19 drives the swing arm 18 through the driving arm 20. The swing arm 18 drives the linkage long arm 16 and the linkage short arm 17 to rotate. When the linkage long arm 16 and the linkage short arm 17 rotate, they drive the rotating arm 9 to swing through the rotating pin 12. Then the rotating arm 9 drives the hinge 4 to open and close through the driving arm 8. The hinge 4 drives the movable template 5 to open and close, so as to realize the opening or closing of the two semi - dies 6. At the same time, because a linkage mechanism is provided between one of the movable templates 5 and the bottom die 7, when the movable template 5 opens and closes, the bottom die 7 is driven to move up and down through the linkage mechanism, realizing the linkage opening and closing of the bottom die. In this solution, the servo motor is used as the driving power, and through the crank - type transmission structure, the linkage opening and closing of the movable template and the bottom die are realized, with fast speed, high precision, stable operation, high efficiency and energy saving, meeting the requirements of high - speed production.

[0018] Furthermore, the linkage mechanism includes a lifting guide plate 25 connected under one of the movable templates 5. A lifting guide groove 26 is provided on the lifting guide plate. A bottom die fixing plate 27 is connected under the bottom die 7. A roller 28 is provided on the bottom die fixing plate. The roller 28 cooperates with the lifting guide groove 26. When the movable template opens and closes, it drives the lifting guide plate to move, and through the cooperation of the lifting guide groove and the roller, it drives the bottom die on the bottom die fixing plate to move up and down, with stable and reliable movement.

[0019] Furthermore, a connecting block 30 is provided under one of the movable templates 5. A connecting plate 31 is provided under the connecting block. The connecting plate is connected to the lifting guide plate 25. With the connecting block and the connecting plate, the connection of the lifting guide plate is more convenient and stable.

[0020] Further, a bottom die lifting plate 33 is connected below the bottom die fixing plate 27. A guide sleeve 34 is arranged on the bottom die lifting plate. A guide rod 35 is also connected below the bottom die fixing plate 27. The guide rod 35 is matched with the guide sleeve 34. With the guide rod and the guide sleeve, the up and down lifting precision of the bottom die is higher, and the cooperation between the bottom die and the two half dies is closer.

[0021] Further, a pressure boosting plate 36 is provided on each of the two fixed templates 3. The hinge 4 is connected to the pressure boosting plate 36. With the pressure boosting plate, the hinge is assisted to boost pressure for mold clamping, and the mold clamping is more reliable.

[0022] The above specific embodiments are used to explain the present invention, which is only the preferred embodiment of the present invention, rather than a limitation to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and protection scope of the claims of the present invention fall within the protection scope of the present invention.

Claims

1. Single-servo crank-armed bottom die linkage with pressure-boosting clamping mechanism, comprising a bottom plate (1) and a top plate (2). On both sides of the bottom plate, a fixed template (3) is provided respectively. Each of the two fixed templates (3) is connected to a movable template (5) through a set of hinges (4). On each of the two movable templates (5), a semi-die (6) that cooperates with each other is provided. Under the two semi-dies, a bottom die (7) is provided. It is characterized in that: A driving arm (8) is connected under each of the two groups of hinges (4). The two driving arms pass through the bottom plate and are respectively connected to a rotating arm (9). A rotating pin (12) is arranged on each of the two rotating arms (9). A corresponding bearing seat (13) is arranged on the bottom surface of the bottom plate (1). The rotating pin (12) is connected to the bearing seat (13) through a bearing (15). The two rotating pins (12) are connected by a linkage long arm (16) and a linkage short arm (17). A swing arm (18) is connected to the linkage long arm (16). A servo motor (19) is also arranged on the bottom surface of the bottom plate (1). A driving arm (20) is connected to the output shaft of the servo motor. The driving arm (20) is connected to the swing arm (18). A linkage mechanism is arranged between one of the movable templates (5) and the bottom die (7).

2. The single servo crank-arm type bottom die linkage belt supercharging die clamping mechanism according to claim 1, characterized in that The linkage mechanism includes a lifting guide plate (25) connected under one of the movable templates (5). A lifting guide curved groove (26) is arranged on the lifting guide plate. A bottom die fixing plate (27) is connected under the bottom die (7). A roller (28) is arranged on the bottom die fixing plate. The roller (28) is matched with the lifting guide curved groove (26).

3. The single servo crank-arm type bottom die linkage belt supercharging mold clamping mechanism according to claim 2, wherein A connecting block (30) is arranged under one of the movable templates (5). A connecting plate (31) is arranged under the connecting block. The connecting plate is connected to the lifting guide plate (25).

4. The single servo crank-arm type bottom die linkage belt supercharging mold clamping mechanism according to claim 2, wherein A bottom die lifting plate (33) is connected under the bottom die fixing plate (27). A guide sleeve (34) is arranged on the bottom die lifting plate. A guide rod (35) is also connected under the bottom die fixing plate (27). The guide rod (35) is matched with the guide sleeve (34).

5. The single-servo crank-arm type bottom die linkage belt supercharging mold clamping mechanism according to claim 1, characterized in that A pressure boosting plate (36) is arranged on each of the two fixed templates (3). The hinge (4) is connected to the pressure boosting plate (36).

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