阅读说明：本技术 一种吹瓶机用底模联动装置 (Bottom die linkage device for bottle blowing machine ) 是由 张俊 张伟 袁爱军 秦天豪 于 2019-10-14 设计创作，主要内容包括：一种吹瓶机用底模联动装置,它涉及旋转式吹瓶机技术领域；固定杆上端固定在定模模架上,下端设置有关节轴承连接轴,底模摆臂的上端分别设置有第二关节轴承连接轴和第一轴承连接轴,且第一轴承连接轴的一端固定有第一轴承,可调节连杆的两端分别固定有关节轴承,且两端的关节轴承分别与第一关节轴承连接轴和第二关节轴承连接轴相连,底模摆臂的下端与固定轴通过第二轴承连接；所述的导轨滑块的一端固定在模架支架上,另一端与底模支架连接,所述的小导轨上设置有曲线槽。本发明底模支架在高速运行的情况下,通过第一轴承沿小导轨曲线槽的导向运动,实现底模支架顺利地上下滑动,提高了模架开闭的灵敏度,且产生的噪音显著降低。(A bottom die linkage device for a bottle blowing machine relates to the technical field of rotary bottle blowing machines; the upper end of the fixed rod is fixed on the fixed die frame, the lower end of the fixed rod is provided with a joint bearing connecting shaft, the upper end of the bottom die swing arm is respectively provided with a second joint bearing connecting shaft and a first bearing connecting shaft, one end of the first bearing connecting shaft is fixedly provided with a first bearing, two ends of the adjustable connecting rod are respectively fixedly provided with a joint bearing, the joint bearings at the two ends are respectively connected with the first joint bearing connecting shaft and the second joint bearing connecting shaft, and the lower end of the bottom die swing arm is connected with the fixed shaft through a second bearing; one end of the guide rail sliding block is fixed on the die carrier support, the other end of the guide rail sliding block is connected with the bottom die support, and the small guide rail is provided with a curve groove. Under the condition of high-speed operation of the bottom die support, the bottom die support smoothly slides up and down through the guiding movement of the first bearing along the small guide rail curved groove, the opening and closing sensitivity of the die frame is improved, and the generated noise is obviously reduced.)

1. The utility model provides a die block aggregate unit for bottle blowing machine which characterized in that: the die holder comprises a fixed die frame, a fixed rod, a first joint bearing connecting shaft, an adjustable connecting rod, a second joint bearing connecting shaft, a bottom die swing arm, a first bearing connecting shaft, a first bearing, a second bearing, a fixed shaft, a guide rail sliding block, a small guide rail, a sealing plate, a bottom die support and a die frame support; the upper end of the fixed rod is fixed on the fixed die frame, the lower end of the fixed rod is provided with a joint bearing connecting shaft, the upper end of the bottom die swing arm is respectively provided with a second joint bearing connecting shaft and a first bearing connecting shaft, one end of the first bearing connecting shaft is fixedly provided with a first bearing, two ends of the adjustable connecting rod are respectively fixedly provided with a joint bearing, the joint bearings at the two ends are respectively connected with the first joint bearing connecting shaft and the second joint bearing connecting shaft, and the lower end of the bottom die swing arm is connected with the fixed shaft through a second bearing; one end of the guide rail sliding block is fixed on the die frame support, the other end of the guide rail sliding block is connected with the bottom die support, a curve groove is formed in the small guide rail, one end of the curve groove is open, the first bearing is installed in the curve groove, and a sealing plate is arranged at the opening of the curve groove.

2. The bottom die linkage device for the bottle blowing machine according to claim 1, characterized in that: the fixed shaft is fixedly connected with the die carrier bracket.

3. The bottom die linkage device for the bottle blowing machine according to claim 1, characterized in that: the guide rail sliding block is fixed at the rear part of the bottom die support, the small guide rail is fixed at the front part of the bottom die support, and the bottom die quick-changing device is fixed at the upper part of the bottom die support.

Technical Field

The invention relates to the technical field of rotary bottle blowing machines, in particular to a bottom die linkage device for a bottle blowing machine.

Background

The mold of the rotary bottle blowing machine generally comprises a movable mold, a fixed mold and a bottom mold, and is respectively arranged on a movable mold frame, a fixed mold frame and a bottom mold support. And when the die carrier is positioned at a die opening station and a die closing station, the movable die carrier, the fixed die carrier, the bottom die support and the die locking mechanism are mutually matched to complete the 'opening' and 'closing' movement of the die carrier.

Referring to fig. 2, the opening and closing manner of the current inner die carrier mainly adopts a mechanical manner, that is: the movable mould frame and the fixed mould frame are driven by an opening and closing mould guide rail, the bottom mould support is driven by a bottom mould guide rail, and the mould locking mechanism is driven by an opening and closing lock guide rail. When the bottom die support works, the bottom die support bearing can always move along the curve B of the bottom die guide rail under the reverse acting force of the spring, and the moving process that the bottom die support descends (corresponding to the die carrier 'opening') and then ascends (corresponding to the die carrier 'closing') is completed. Although the mechanical driving structure has many advantages, the sensitivity of opening and closing the mold frame is limited. When the rotating speed of the single mold is increased to a certain value, the spring on the bottom mold support is difficult to overcome the rotational inertia of the mold base, so that the bottom mold support bearing cannot be attached to the bottom mold guide rail to move in a curve under the action of the rotational inertia of the bottom mold support, and the phenomenon of jumping and impacting between the bottom mold support bearing and the bottom mold guide rail is generated.

The phenomenon seriously restricts the improvement of the yield of the equipment and causes immeasurable influence on the update of the rotary bottle blowing machine.

Disclosure of Invention

The invention aims to provide the bottom die linkage device for the bottle blowing machine, which has the advantages of simple structure, reasonable design and convenience in use and aims at overcoming the defects and shortcomings of the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the die holder comprises a fixed die frame, a fixed rod, a first joint bearing connecting shaft, an adjustable connecting rod, a second joint bearing connecting shaft, a bottom die swing arm, a first bearing connecting shaft, a first bearing, a second bearing, a fixed shaft, a guide rail sliding block, a small guide rail, a sealing plate, a bottom die support and a die frame support; the upper end of the fixed rod is fixed on the fixed die frame, the lower end of the fixed rod is provided with a joint bearing connecting shaft, the upper end of the bottom die swing arm is respectively provided with a second joint bearing connecting shaft and a first bearing connecting shaft, one end of the first bearing connecting shaft is fixedly provided with a first bearing, two ends of the adjustable connecting rod are respectively fixedly provided with a joint bearing, the joint bearings at the two ends are respectively connected with the first joint bearing connecting shaft and the second joint bearing connecting shaft, and the lower end of the bottom die swing arm is connected with the fixed shaft through a second bearing; one end of the guide rail sliding block is fixed on the die frame support, the other end of the guide rail sliding block is connected with the bottom die support, a curve groove is formed in the small guide rail, one end of the curve groove is open, the first bearing is installed in the curve groove, and a sealing plate is arranged at the opening of the curve groove.

Furthermore, the fixed shaft is fixedly connected with the die carrier bracket.

Furthermore, the guide rail sliding block is fixed at the rear part of the bottom die support, the small guide rail is fixed at the front part of the bottom die support, and the bottom die quick-changing device is fixed at the upper part of the bottom die support.

The invention is provided with a small guide rail and a bottom die swing arm on a bottom die support, and the swing arm is connected with a fixed die frame through an adjustable connecting rod. When the die carrier swing arm swings along the die opening and closing curve, the rotating shaft and the connecting rod connected with the die carrier swing arm can drive the moving die carrier and the fixed die carrier to be opened towards two sides firstly and then return to a closed state. In the process of opening the movable mould frame and the fixed mould frame outwards, the fixed mould frame can drive the bottom mould swing arm to swing towards the same direction, and the bottom mould support moves downwards through the interaction of the bottom mould swing arm and the small guide rail to complete the action of opening the mould; in a similar way, after the die carrier finishes the opening action, the movable die carrier and the fixed die carrier can be synchronously closed towards the center, the fixed die carrier can push the bottom die swing arm to swing towards the center, and the bottom die support can ascend under the action of the bottom die swing arm and the small guide rail to finish the die closing action.

After adopting the structure, the invention has the beneficial effects that: the bottom die linkage device for the bottle blowing machine integrates the rotation of the fixed die frame and the up-and-down movement of the bottom die support, cancels the bottom die guide rail mechanism, realizes the smooth up-and-down sliding of the bottom die support through the guiding movement of the first bearing along the small guide rail curved groove under the condition of high-speed operation of the bottom die support, improves the opening and closing sensitivity of the die frame, and obviously reduces the generated noise.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a state diagram of a closed mold of the background art;

FIG. 3 is a diagram of the mold closed state of the present invention;

FIG. 4 is a diagram of the mold opening state of the present invention.

Description of reference numerals:

the die holder comprises a fixed die frame 1, a fixed rod 2, a first joint bearing connecting shaft 3, an adjustable connecting rod 4, a second joint bearing connecting shaft 5, a bottom die swing arm 6, a first bearing connecting shaft 7, a first bearing 8, a second bearing 9, a fixed shaft 10, a guide rail slide block 11, a small guide rail 12, a sealing plate 13, a bottom die support 14, a bottom die quick-change device 15, a die holder support 16, an open-close die curve A, a bottom die guide rail curve B and a die holder swing arm C.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1, fig. 3 and fig. 4, the following technical solutions are adopted in the present embodiment: the die holder comprises a fixed die frame 1, a fixed rod 2, a first joint bearing connecting shaft 3, an adjustable connecting rod 4, a second joint bearing connecting shaft 5, a bottom die swing arm 6, a first bearing connecting shaft 7, a first bearing 8, a second bearing 9, a fixed shaft 10, a guide rail slide block 11, a small guide rail 12, a sealing plate 13, a bottom die support 14 and a die frame support 16; the fixed rod 2 is fixedly connected with the fixed die frame 1, the fixed shaft 10 is fixedly connected with the die frame support 16, the guide rail slide block 11 is fixed at the rear part of the bottom die support 14, the small guide rail 12 is fixed at the front part of the bottom die support 14, and the bottom die quick-change device 15 is fixed at the upper part of the bottom die support 14.

The upper end of the fixed rod 2 is fixed on the fixed die frame 1, the lower end of the fixed rod is provided with a joint bearing connecting shaft 3, the upper end of the bottom die swing arm 6 is provided with a second joint bearing connecting shaft 5 and a first bearing connecting shaft 7 respectively, one end of the first bearing connecting shaft 7 is fixed with a first bearing 8, two ends of the adjustable connecting rod 4 are fixed with joint bearings respectively, and the joint bearings at the two ends are connected with the first joint bearing connecting shaft 3 and the second joint bearing connecting shaft 5 respectively, so that the fixed die frame 1 and the bottom die swing arm 6 can synchronously move in the same direction. In addition, the screw thread of one end of the adjustable connecting rod 4 is left-handed, and the screw thread of one end of the adjustable connecting rod is right-handed, so that the position can be conveniently adjusted during assembly.

The lower end of the bottom die swing arm 6 is connected with the fixed shaft 10 through the second bearing 9, so that the bottom die swing arm 6 can rotate freely with the axis of the fixed shaft 10 as the center of a circle under the condition of no other constraint.

One end of the guide rail sliding block 11 is fixed on the mold frame support 16, and the other end is connected with the bottom mold support 14, so that the bottom mold support 14 can slide up and down without other constraints.

The small guide rail 12 is provided with a curve groove, and only one end of the curve groove is in an open state, so that the first bearing 8 can conveniently roll into the curve groove from the opening. In addition, a sealing plate 13 is arranged at the opening of the curved groove and used for sealing the curved groove after the first bearing 8 is installed.

The small guide rail 12 drives the bottom die support 14 to move up and down under the action of the first bearing 8. And the first bearing 8 and the bottom die swing arm 6 move synchronously, so that the fixed die frame 1 and the bottom die support 14 move synchronously.

The working principle of the specific embodiment is as follows: the 'opening' and 'closing' of the die carrier of the rotary bottle blowing machine correspond to two working processes of bottle taking and blank sending of the manipulator, when the swing arm C of the die carrier swings along the front half section of the mold opening and closing curve A, the die is opened, blown PET bottles are 'exposed', and the PET bottles are quickly taken out by the bottle taking manipulator and sent to the next station; when the swing of the die frame swing arm C along the middle section of the die opening and closing curve is about to end, the blank conveying manipulator can put the heated PET bottle blank into the die and enter a high-pressure air bottle blowing stage after the die is closed.

The mould frame is 'open': the PET bottle blowing is finished, and when the die carrier reaches the starting end of the mold opening and closing curve, the fixed die carrier 1 is opened outwards along with the operation of the equipment, the adjustable connecting rod 4 pulls the bottom die swing arm 6 to swing rightwards by taking the axis of the fixed shaft 10 as the center of a circle, so that the first bearing 8 makes climbing motion along the curve groove on the small guide rail 12. And because the center distance between the first bearing 8 and the second bearing 9 is constant, the bottom die support 14 moves downwards.

When the mould base moves to the end point of the mould opening curve of the opening and closing mould, the outward opening movement of the fixed mould base 1 is stopped, and the mould base is at the maximum opening position. The bottom die support 14 synchronously stops moving downwards and is at the lowest position, and the opening motion process of the die carrier is completed.

The mould frame is 'closed': when a bottle blank is taken out and put in, and the die carrier reaches the starting end of a mold closing curve of the opening and closing mold, the movable die carrier and the fixed die carrier 1 are simultaneously closed towards the middle along with the operation of the equipment, and the bottom mold swing arm 6 is pushed by the adjustable connecting rod 4 to swing leftwards by taking the axis of the fixed shaft 10 as the center of a circle, so that the first bearing 8 moves downhill along the curve groove on the small guide rail 12. And because the center distance between the first bearing 8 and the second bearing 9 is constant, the bottom die support 14 moves upwards.

When the position of the mold frame moves to the end point of the mold opening and closing curve, the movable mold frame and the fixed mold frame 1 are closed together, the position of the bottom mold support 14 is at the highest point and is locked under the action of the mold locking mechanism, and the motion process of closing the mold frame is completed.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.