CN106426880A - Opening and closing manipulator for bottle blowing machine - Google Patents

Abstract

An opening and closing manipulator of a bottle blowing machine, including a support plate and a cam plate that rotate around the axis. The cam plate is provided with a telescopic cam and an opening and closing cam. The support plate is equipped with a slider with a movable slide rail. The opening and closing arm on the connecting plate at the end of the slide rail drives the first gripper to open through the action of the opening and closing guide wheel and the opening and closing cam, and the first gripper and the second gripper The two grippers are mutually driven by the gear plates to open simultaneously. The opening and closing manipulator of the bottle blowing machine realizes the active opening of the clamping hand, thereby avoiding the damage of the clamping hand to the preform and the precision requirements for the clamping hand in the traditional passive opening method, thus effectively protecting the preform and improving the production efficiency of the bottle. The quality and qualification rate of the product are improved, and the processing requirements of the gripper are reduced at the same time.

Description

A bottle blowing machine opening and closing manipulator

technical field

The invention relates to bottle blowing equipment, in particular to an opening and closing manipulator for grabbing preforms or bottle bodies in a bottle blowing machine.

Background technique

Blow molding machine is equipment in the field of processing and manufacturing plastic bottles such as beverage bottles, oil bottles, and medicine bottles. It includes multiple components such as clamping and transporting preforms, and blowing preforms into bottle bodies. As shown in Figures 1 and 2, the slider 101 is driven by the driving part to the position facing the preform, and then the slide rail 102 is pushed and stretched towards the preform until the two grippers 103 press against the preform and are expanded by the preform. Then the slide rail is no longer pushed. On the one hand, the two grippers will clamp the preform under the action of the tension spring 104, and retract under the action of the return spring 105 on the other hand. After this, the slider continues to move and will The preform is brought to the next station.

Although the opening and closing manipulator of this kind of bottle blowing machine can complete the delivery work of the preform, the opening operation of the two grippers in the process of clamping the preform depends on the pressure between the gripper and the preform and the restoring force of the tension spring. Finally, it is a passive opening method that is expanded by pressing the preform. In order to ensure the gripping accuracy, this structure leads to high processing requirements for the gripper, making it difficult to manufacture; at the same time, during the process of pressing the preform into the gripper, it is easy to be scratched by the gripper, which will not only generate debris, but also affect the The processing accuracy of the preform may even lead to deformation of the preform and produce waste products.

Contents of the invention

The present invention aims to provide an opening and closing manipulator of a bottle blowing machine that actively opens grippers to grip preforms, so as to protect preforms, improve product quality and pass rate, and reduce processing requirements for grippers.

The opening and closing manipulator of the bottle blowing machine according to the present invention includes a support plate and a cam plate that rotate around the axis. Several sliders that rotate with it are installed on the support plate along the circumference, and movable slide rails are installed on the sliders. , the end of the slide rail is equipped with the first gripper and the second gripper through the connecting plate; the two grippers are hinged on the connecting plate through the rotating shaft, and a tension spring is installed between the two grippers to make them rotate in opposite directions. The rotating shaft is fixedly equipped with a gear plate with gear teeth meshing with each other, and the first gripper is also fixedly equipped with a rotating arm; the cam plate is equipped with a telescopic cam and an opening and closing cam, and the slide rail is equipped with a motor that moves along the telescopic cam. Telescopic guide wheel, the opening and closing swing arm is installed through the rotating shaft on the connecting plate, the first opening and closing guide wheel and the second opening and closing guide wheel moving along the opening and closing cam are installed on the opening and closing swing arm, and the second opening and closing guide wheel can be pressed The first gripper is driven to open by rotating the arm.

In the opening and closing manipulator of the bottle blowing machine according to the present invention, the slider is driven by the support plate to move to the position facing the preform, and then the slide rail extends to the preform through the interaction between the telescopic guide wheel and the telescopic cam on the cam plate, At the same time, the opening and closing swing arm installed at the end of the slide rail rotates through the interaction between the first opening and closing guide wheel and the opening and closing cam on the cam plate, and then the opening and closing swing arm drives the second opening and closing guide wheel to press against the first clip The rotating arm on the hand until the first clamping hand is driven to open by the rotating arm. At this time, the rotating shaft connected with the first clamping hand rotates, and drives the other rotating shaft and the second clamping hand to rotate and open through the gear plate. In this way, the opening work of the clamping hand is realized. The clamping hand to be opened is placed outside the preform, and the second opening and closing guide wheel stops acting on the first clamping hand under the action of the opening and closing cam, and the two clamping hands are on the tension spring. Clamp the preform under the recovery force to complete the clamping work. The opening and closing manipulator of the bottle blowing machine sets the opening and closing cam and the first opening and closing guide wheel respectively on the cam plate and the guide rail, and then through the action of the second opening and closing guide wheel on the first gripper and the gear between the two grippers. Plate function, that is, the active opening of the gripper can be realized, thereby avoiding the damage to the preform by the gripper in the traditional passive opening method and the precision requirements for the gripper, thus effectively protecting the preform and improving the quality of the product and qualified rate, while reducing the processing requirements of the gripper; the structure is simple, easy to implement, and its work is fast, accurate and stable, and it is also more conducive to the improvement of product quality.

Description of drawings

Fig. 1 is a structural schematic diagram of the existing clamping preform structure.

Fig. 2 is a schematic cross-sectional view of the structure for clamping the preform shown in Fig. 1 .

Fig. 3 is a structural schematic diagram of the opening and closing manipulator of the bottle blowing machine according to the present invention.

Fig. 4 is a partial structural schematic diagram of the opening and closing manipulator of the bottle blowing machine shown in Fig. 3 .

Fig. 5 is a partial structural schematic diagram of the opening and closing manipulator of the bottle blowing machine shown in Fig. 4 .

Fig. 6 is a schematic diagram of the working state of the opening and closing manipulator of the bottle blowing machine shown in Fig. 3 .

detailed description

As shown in Figure 1-3, a bottle blowing machine opening and closing manipulator includes a support plate 1 and a cam plate 2 that rotate around the axis, and several sliders 3 that rotate with it are installed on the support plate along the circumference. A movable slide rail 4 is installed on the top, and the end of the slide rail is equipped with a first clamping hand 6 and a second clamping hand 7 through a connecting plate 5; both clamping hands are hinged on the connecting plate through a rotating shaft 8, and the two clamping hands A tension spring 9 is installed between them to make them rotate in opposite directions, a gear plate 10 with gear teeth and intermeshing is fixedly installed on the two rotating shafts, and a rotating arm 11 is also fixedly installed on the first gripper; Telescopic cam 21 and opening and closing cam 22, the telescopic guide wheel 12 that moves along the telescopic cam is housed on the slide rail, the opening and closing swing arm 13 is housed by the rotating shaft on the connecting plate, and the first opening and closing swing arm that moves along the opening and closing cam is housed on the opening and closing swing arm. The opening and closing guide wheel 14 and the second opening and closing guide wheel 15, the second opening and closing guide wheel can be pressed to the rotating arm to drive the first clamping hand to open.

The opening and closing manipulator of the bottle blowing machine is provided with a swing cam 23 on the cam plate 2, a fixed plate 16 is fixedly installed on the support plate, and the slider 3 is rotatably installed on the fixed plate through the adjustment shaft 17. On the slider 3 A swing arm 18 is fixedly installed, and a swing guide wheel 19 that moves along the swing cam is mounted on the swing arm. The support plate drives the slider to move to the position facing the preform. In the process, the swing cam and the swing guide wheel realize precise positioning, so that the gripper is facing the preform for easy gripping. After the gripping is completed, the swing cam can also According to the production situation, adjust the angle of the gripper by swinging the guide wheel, so as to facilitate the subsequent blowing work.

As shown in Figure 4, the opening and closing cam exerts an effect on the first opening and closing guide wheel, so that it drives the second opening and closing guide wheel to press against the rotating arm, thereby driving the first clamping hand to rotate around the direction of the arrow, and at the same time, the first clamping hand rotates Through the function of the two gear plates, the second gripper is driven to rotate, and the two grippers are rotated and opened together. On the one hand, the working speed can be improved, and on the other hand, the two grippers can be opened symmetrically, and the gripper can be clamped more accurately. Take the preform.

Claims (3)

1. An opening and closing manipulator of a bottle blowing machine, including a support plate (1) and a cam plate (2) that rotate around the axis, and several sliders (3) that rotate with the support plate are installed on the support plate. The movable slide rail (4), the end of the slide rail is equipped with the first gripper (6) and the second gripper (7) through the connecting plate (5), the characteristic is that the first gripper passes through the rotating shaft ( 8) Hinged on the connecting plate, a tension spring (9) is installed between the two grippers to make them rotate in opposite directions, and a rotating arm (11) is also fixed on the first gripper; telescopic cams (21) are arranged on the cam plate ) and the opening and closing cam (22), the slide rail is equipped with a telescopic guide wheel (12) that moves along the telescopic cam, the connecting plate is equipped with an opening and closing swing arm (13) through the rotating shaft, and the opening and closing swing arm is equipped with a movement along the opening and closing cam The first opening and closing guide wheel (14) and the second opening and closing guide wheel (15) are moving, and the second opening and closing guide wheel can press against the rotating arm to drive the first clamping hand to open. 2. The opening and closing manipulator of the bottle blowing machine according to claim 1, characterized in that: the first gripper (6) and the second gripper (7) are both hinged on the connecting plate through the rotating shaft (8), and the two rotate A gear plate (10) with gear teeth and intermeshing is fixedly installed on the shaft. 3. The blow molding machine opening and closing manipulator according to claim 1 or 2, characterized in that: a swing cam (23) is provided on the cam plate (2), a fixed plate (16) is fixedly installed on the support plate, and the slider (3) The adjusting shaft (17) is rotatably mounted on the fixed plate, and a swing arm (18) is fixedly mounted on the slider (3), and a swing guide wheel (19) moving along the swing cam is mounted on the swing arm.