A mold carrier mechanism of a blow molding machine

Abstract

The utility model discloses a mould frame mechanism of blow molding machine, including moving mould base, curved arm mobile seat, front mould seat and rear mould seat, the rear end fixed of moving mould base has servo electric jar, and the drive end of servo electric jar is connected with rear mould seat, and curved arm mobile seat is located the rear of rear mould seat, and C type mould frame is connected between curved arm mobile seat and front mould seat, and install the oil jar on curved arm mobile seat, and the drive end of oil jar is connected with rear mould seat. This mould frame mechanism of blow molding machine adopts C type mould module to combine rear mould seat and curved arm mobile seat, and the stress is even, and the structure is simple, and adopt the oil jar to carry out the pressurization of micro stroke, supplement the power of servo electric jar, cancel the hydraulic oil pump, and the displacement control is accurate and efficient, and the overall height reduces, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the technical field of blow molding, and in particular to a mold frame mechanism for a blow molding machine. Background Technology

[0002] Existing blow molding machines use hydraulic pumps to supplement the opening and closing stroke of the front and rear mold bases in the mold frame opening and closing structure. This results in the large front and rear mold bases not being precise enough in their movement position, and the structure moving back and forth is not evenly stressed and misaligned. Utility Model Content

[0003] One objective of this invention is to provide a mold frame mechanism for a blow molding machine that eliminates the need for a hydraulic oil pump and uses a cylinder to control the pressure of the micro-stroke, resulting in a stable structure.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A mold frame mechanism for a blow molding machine includes a mold shifting base, a crank arm moving seat, a front mold base, and a rear mold base. A servo electric cylinder is fixed to the rear end of the mold shifting base, and the drive end of the servo electric cylinder is connected to the rear mold base. The crank arm moving seat is located behind the rear mold base. A C-shaped mold frame is connected between the crank arm moving seat and the front mold base. A hydraulic cylinder is mounted on the crank arm moving seat, and the drive end of the hydraulic cylinder is connected to the rear mold base.

[0006] As a preferred technical solution, a mold base moving slide rail is provided on the mold base along the front-to-back direction, and the lower ends of the crank arm moving seat, the lower ends of the front mold base, and the lower ends of the rear mold base all slide on the mold base moving slide rail.

[0007] As a preferred technical solution, a locking cylinder is installed on the crank arm moving seat, and the driving end of the locking cylinder presses against the fixed end of the oil cylinder.

[0008] As a preferred technical solution, a pneumatic-hydraulic station is installed on one side of the servo electric cylinder, and the pneumatic-hydraulic station supplements the power of the oil cylinder.

[0009] As a preferred technical solution, a mold-shifting gear seat is installed on the mold-shifting base, a mold-shifting gear is rotatably connected to the mold-shifting gear seat, a rear rack is fixed on the crank arm moving seat, and a front rack is fixed on the rear mold seat. The front rack and the rear rack are respectively located on both sides of the mold-shifting gear and are both meshed with the mold-shifting gear.

[0010] As a preferred technical solution, a side water pipe is installed on one side of the mold base, and water cooling structures are installed on both the front mold base and the rear mold base, with the side water pipe connected to the water cooling structure.

[0011] The beneficial effects of this utility model are as follows: It provides a mold frame mechanism for a blow molding machine. The mold frame mechanism of the blow molding machine adopts a C-type module combined with a rear mold base and a curved arm moving base, which results in uniform force distribution, simple structure, and the use of a hydraulic cylinder for micro-stroke pressurization to supplement the power of the servo electric cylinder, eliminating the need for a hydraulic oil pump. The displacement control is precise and efficient, the overall height is reduced, and the operation is convenient. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of the mold frame mechanism of a blow molding machine as described in the embodiment;

[0014] Figure 2 This is a partial structural diagram of the mold frame mechanism of a blow molding machine as described in the embodiment.

[0015] Figures 1 to 2 middle:

[0016] 1. Mold moving base; 2. Crank arm moving seat; 3. Front mold base; 4. Rear mold base; 5. Servo electric cylinder; 6. C-shaped mold frame; 7. Hydraulic cylinder; 8. Mold base moving slide rail; 9. Locking cylinder; 10. Pneumatic hydraulic station; 11. Mold moving gear seat; 12. Mold moving gear; 13. Rear rack; 14. Front rack; 15. Side water pipe. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 2 As shown in this embodiment, a mold frame mechanism for a blow molding machine includes a mold transfer base 1, a curved arm moving seat 2, a front mold base 3, and a rear mold base 4. A servo electric cylinder 5 is fixed to the rear end of the mold transfer base 1. The drive end of the servo electric cylinder 5 is connected to the rear mold base 4. The curved arm moving seat 2 is located behind the rear mold base 4. A C-shaped mold frame 6 is connected between the curved arm moving seat 2 and the front mold base 3. A hydraulic cylinder 7 is installed on the curved arm moving seat 2. The drive end of the hydraulic cylinder 7 is connected to the rear mold base 4.

[0019] Servo electric cylinder 5 controls the forward and backward movement of rear mold base 4. The hydraulic cylinder 7 supplements the micro-stroke power to improve the accuracy of movement. When the hydraulic cylinder 7 supplements the power, the crank arm moving seat 2 moves relative to the rear mold base 4. Driven by the C-shaped mold frame 6, the front mold base 3 also moves. The movement between the front mold base 3 and the rear mold base 4 moves away from each other or towards each other to ensure the stability of blow molding.

[0020] A mold base 1 is provided with a mold base moving slide rail 8 along the front-to-back direction. The lower ends of the curved arm moving seat 2, the lower ends of the front mold base 3 and the lower ends of the rear mold base 4 all slide on the mold base moving slide rail 8. The movement of the front mold base 3 and the rear mold base 4 is guided and friction is reduced by the mold base moving slide rail 8.

[0021] A locking cylinder 9 is installed on the articulated arm moving seat 2. The driving end of the locking cylinder 9 presses against the fixed end of the oil cylinder 7, thereby locking the position of the oil cylinder 7.

[0022] A pneumatic-hydraulic station 10 is installed on one side of the servo electric cylinder 5. The pneumatic-hydraulic station 10 supplements the power of the oil cylinder 7 and is responsible for supplementing the power.

[0023] A mold-shifting gear seat 11 is installed on the mold-shifting base 1, and a mold-shifting gear 12 is rotatably connected to the mold-shifting gear seat 11. A rear rack 13 is fixed on the crank arm moving seat 2, and a front rack 14 is fixed on the rear mold seat 4. The front rack 14 and the rear rack 13 are located on both sides of the mold-shifting gear 12 and are meshed with the mold-shifting gear 12. When the crank arm moving seat 2 moves, the rear rack 13 drives the mold-shifting gear 12 to rotate. Conversely, the front rack 14 will drive the rear mold seat 4 to move relative to each other. Therefore, the movement of the crank arm moving seat 2 and the rear mold seat 4 is in opposite directions. The front mold seat 3 connected to the crank arm moving seat 2 will also move relative to the rear mold seat 4.

[0024] A side water pipe 15 is installed on one side of the mold base 1. Water cooling structures are installed on both the front mold base 3 and the rear mold base 4. The side water pipe 15 is connected to the water cooling structure and is responsible for providing cooling water to the water cooling structure, so that the blow-molded product can be cooled quickly.

[0025] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A mold frame mechanism for a blow molding machine, characterized in that, The device includes a mold-moving base, a crank arm moving seat, a front mold base, and a rear mold base. A servo electric cylinder is fixed to the rear end of the mold-moving base, and the drive end of the servo electric cylinder is connected to the rear mold base. The crank arm moving seat is located behind the rear mold base. A C-shaped mold frame is connected between the crank arm moving seat and the front mold base. A hydraulic cylinder is installed on the crank arm moving seat, and the drive end of the hydraulic cylinder is connected to the rear mold base.

2. The mold frame mechanism of a blow molding machine according to claim 1, characterized in that, The mold base is provided with a mold base moving slide rail along the front-to-back direction, and the lower ends of the crank arm moving seat, the lower ends of the front mold base, and the lower ends of the rear mold base all slide on the mold base moving slide rail.

3. The mold frame mechanism of a blow molding machine according to claim 1, characterized in that, A locking cylinder is installed on the movable arm seat, and the driving end of the locking cylinder presses against the fixed end of the hydraulic cylinder.

4. The mold frame mechanism of a blow molding machine according to claim 1, characterized in that, A pneumatic-hydraulic station is installed on one side of the servo electric cylinder, which supplements the power of the cylinder.

5. The mold frame mechanism of a blow molding machine according to claim 1, characterized in that, A mold-shifting gear seat is installed on the mold-shifting base, and a mold-shifting gear is rotatably connected to the mold-shifting gear seat. A rear rack is fixed on the crank arm moving seat, and a front rack is fixed on the rear mold seat. The front rack and the rear rack are located on both sides of the mold-shifting gear and are both meshed with the mold-shifting gear.

6. The mold frame mechanism of a blow molding machine according to claim 1, characterized in that, A side water pipe is installed on one side of the mold base, and water cooling structures are installed on both the front mold base and the rear mold base. The side water pipe is connected to the water cooling structure.

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