Bottle opening positioning device of PET (Polyethylene Terephthalate) bottle blowing machine

Abstract

The utility model belongs to the technical field of positioning devices, and particularly relates to a PET bottle blowing machine bottle opening positioning device which comprises a first mold, a second mold and a linear driver, mold driving hydraulic cylinders are arranged on the side faces of the first mold and the second mold, one end of each mold driving hydraulic cylinder is connected with a bottle blowing machine, and the linear driver is installed on a machine table of the bottle blowing machine. A hydraulic telescopic rod is installed at the top of the linear driver, a mounting plate is installed at the top of the hydraulic telescopic rod, a motor is installed on the side face of the mounting plate, the output end of the motor is connected with a cross-shaped fixing frame through a rotating shaft, and four sets of positioning clamp mounting frames are annularly distributed on the outer side of the cross-shaped fixing frame; a servo electric cylinder is installed on the inner side of the positioning clamp installation frame, the tail end of a piston rod of the servo electric cylinder is connected with an installation socket, an installation insertion block is installed on the inner side of the installation socket in an inserted mode, multiple specifications of positioning clamping bases can be installed according to the bottle opening size of a bottle blank, and replacement of the positioning device is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning devices, and in particular relates to a bottle mouth positioning device for a PET bottle blowing machine. Background Art

[0002] The working principle of the ET bottle blowing machine mainly relies on the effect of air pressure. Specifically, it blows air into the heated PET preform and uses a specific external mold to shape the preform to produce PET bottles of various shapes. The whole process can be roughly divided into four steps: preheating, bottle blowing, demoulding and conveying. When blowing bottles, the bottle mouth needs to be positioned, but the existing positioning device can generally only be applied to one specification of bottle mouth. When processing bottles of other specifications, the positioning device needs to be disassembled and replaced, which is very inconvenient to use. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a bottle mouth positioning device for a PET bottle blowing machine. The device can install positioning clamping seats of multiple specifications according to the bottle mouth size of the bottle preform. When it is necessary to switch positioning clamping seats of different specifications, it is only necessary to control the linear drive to drive the hydraulic telescopic rod together with the cross-shaped fixing frame away from the first mold and the second mold, and then control the motor to rotate to drive the cross-shaped fixing frame to rotate, and switch the positioning clamping seat of the required specification to the working position, which greatly facilitates the replacement of the positioning device.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a bottle mouth positioning device for a PET bottle blowing machine, comprising a first mold, a second mold, and a linear drive, wherein mold-driving hydraulic cylinders are provided on the sides of the first mold and the second mold, one end of the mold-driving hydraulic cylinder is connected to the bottle blowing machine, and the linear drive is installed on the machine table of the bottle blowing machine, a hydraulic telescopic rod is installed on the top of the linear drive, a mounting plate is installed on the top of the hydraulic telescopic rod, a motor is installed on the side of the mounting plate, an output end of the motor is connected to a cross-shaped fixing frame through a rotating shaft, four groups of positioning fixture mounting frames are arranged in a ring on the outer side of the cross-shaped fixing frame, a servo electric cylinder is installed on the inner side of the positioning fixture mounting frame, a piston rod end of the servo electric cylinder is connected to a mounting socket, a mounting plug is inserted into the inner side of the mounting socket, and one side of the mounting plug is connected to a positioning clamping seat.

[0005] The beneficial effects of the utility model are as follows: the device can install positioning clamping seats of multiple specifications according to the bottle mouth size of the bottle embryo. When it is necessary to switch positioning clamping seats of different specifications, it is only necessary to control the linear drive to drive the hydraulic telescopic rod together with the cross-shaped fixing frame away from the first mold and the second mold, and then control the motor to rotate to drive the cross-shaped fixing frame to rotate, and switch the positioning clamping seat of the required specification to the working position, and then control the linear drive to drive the hydraulic telescopic rod to reset. The device can also adjust the height of the cross-shaped fixing frame and the positioning clamping seat through the hydraulic telescopic rod to adapt to the first mold and the second mold of different heights. The device can also quickly replace the installed positioning clamping seat. When replacing, the locking bolt can be unscrewed to pull the mounting plug out of the mounting socket. When replacing the new positioning clamping seat, the locking screw holes on the mounting socket and the mounting plug are aligned with each other when the mounting plug is inserted into the mounting socket, and the two can be fixed with the locking bolt.

[0006] To accommodate the preform and give it shape during the blowing process:

[0007] As a further improvement of the above technical solution: a mold cavity is provided inside the first mold and the second mold.

[0008] The beneficial effect of this improvement is that the mold cavity is used to accommodate the bottle preform and shape the bottle preform during the bottle blowing process.

[0009] As a further improvement of the above technical solution: a locking screw hole is provided between the inner side and the outer side of the mounting socket, and a locking screw hole is also provided on the outer side of the mounting block. The locking screw hole on the mounting socket is connected to the locking screw hole on the mounting block by a locking bolt.

[0010] To secure the bottle mouth:

[0011] As a further improvement of the above technical solution: a bottle mouth fixing groove is provided on the inner side of the positioning clamping seat.

[0012] The beneficial effect of this improvement is that the bottle mouth fixing groove is used to cooperate with the convex ring on the outer side of the bottle mouth to fix the bottle mouth.

[0013] To facilitate alignment between locking screw holes:

[0014] As a further improvement of the above technical solution: the plug hole inside the mounting socket and the mounting plug block are both in the shape of a quadrangular prism.

[0015] The beneficial effect of this improvement is that the plug hole on the inner side of the mounting socket and the mounting plug block are both in the shape of a quadrangular prism, which facilitates the alignment between the locking screw holes.

[0016] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the axonometric structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 It is a partial axonometric schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation socket and the installation plug-in block in the utility model when they are separated;

[0021] Figure 5 It is a partial cutaway schematic diagram of the utility model;

[0022] In the figure: 1. first mold; 2. second mold; 3. mold cavity; 4. mold driving hydraulic cylinder; 5. linear drive; 6. hydraulic telescopic rod; 7. mounting plate; 8. motor; 9. cross-shaped fixing frame; 10. positioning fixture mounting frame; 11. servo electric cylinder; 12. mounting socket; 13. locking screw hole; 14. locking bolt; 15. mounting plug; 16. positioning clamp seat; 17. bottle mouth fixing groove. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0024] like Figure 1-5 As shown, a bottle mouth positioning device for a PET bottle blowing machine comprises a first mold 1, a second mold 2, and a linear drive 5. A mold driving hydraulic cylinder 4 is provided on the side of the first mold 1 and the second mold 2, one end of the mold driving hydraulic cylinder 4 is connected to the bottle blowing machine, and the linear drive 5 is installed on the machine table of the bottle blowing machine. A hydraulic telescopic rod 6 is installed on the top of the linear drive 5, and a mounting plate 7 is installed on the top of the hydraulic telescopic rod 6. A motor 8 is installed on the side of the mounting plate 7. The output end of the motor 8 is connected to a cross-shaped fixing frame 9 through a rotating shaft. Four groups of positioning fixture mounting frames 10 are arranged in a ring on the outer side of the cross-shaped fixing frame 9. A servo electric cylinder 11 is installed on the inner side of the positioning fixture mounting frame 10. The piston rod end of the servo electric cylinder 11 is connected to a mounting socket 12. A mounting plug 15 is inserted and installed on the inner side of the mounting socket 12, and one side of the mounting plug 15 is connected to a positioning clamping seat 16.

[0025] The device can install multiple specifications of positioning clamping seats 16 according to the bottle mouth size of the bottle embryo. When it is necessary to switch positioning clamping seats 16 of different specifications, it is only necessary to control the linear drive 5 to drive the hydraulic telescopic rod 6 together with the cross-shaped fixing frame 9 away from the first mold 1 and the second mold 2, and then control the motor 8 to rotate and drive the cross-shaped fixing frame 9 to rotate, so as to switch the positioning clamping seat 16 of the required specifications to the working position, and then control the linear drive 5 to drive the hydraulic telescopic rod 6 to reset. The device can also adjust the height of the cross-shaped fixing frame 9 and the positioning clamping seat 16 through the hydraulic telescopic rod 6 to adapt to the first mold 1 and the second mold 2 of different heights. The device can also quickly replace the installed positioning clamping seat 16. When replacing, unscrew the locking bolt 14 to pull the mounting plug 15 out of the mounting socket 12. When replacing the new positioning clamping seat 16, when the mounting plug 15 is inserted into the mounting socket 12, the locking screw holes 13 on the mounting socket 12 and the mounting plug 15 are aligned with each other, and the locking bolt 14 is used to fix the two.

[0026] A mold cavity 3 is provided inside the first mold 1 and the second mold 2 .

[0027] The mold cavity 3 is used to accommodate the bottle preform and shape the bottle preform during the bottle blowing process.

[0028] A locking screw hole 13 is provided between the inner side and the outer side of the mounting socket 12 , and a locking screw hole 13 is also provided on the outer side of the mounting plug block 15 . The locking screw hole 13 on the mounting socket 12 is connected to the locking screw hole 13 on the mounting plug block 15 via a locking bolt 14 .

[0029] A bottle mouth fixing groove 17 is provided on the inner side of the positioning clamping seat 16 .

[0030] The bottle mouth fixing groove 17 is used to cooperate with the convex ring on the outer side of the bottle mouth to fix the bottle mouth.

[0031] The insertion hole inside the mounting socket 12 and the mounting plug block 15 are both in the shape of a quadrangular prism.

[0032] The insertion hole inside the mounting socket 12 and the mounting plug block 15 are both in the shape of a quadrangular prism, which facilitates the alignment between the locking screw holes 13 .

[0033] The working principle and use process of the utility model: when the device is used, the bottle mouth of the bottle preform is clamped and positioned by the positioning clamping seat 16, and the bottle mouth of the bottle preform is placed between the two groups of positioning clamping seats 16 located on the same positioning fixture mounting frame 10, and the positioning clamping seats 16 are driven to approach each other by the servo electric cylinder 11 to clamp and fix the bottle mouth of the bottle preform, and the bottle mouth fixing groove 17 cooperates with the circular ring on the outside of the bottle mouth to complete the clamping and positioning of the bottle mouth to avoid displacement of the bottle preform during the bottle blowing process. After completing the positioning of the bottle mouth of the bottle preform, the mold driving hydraulic cylinder 4 drives the first mold 1 and the second mold 2 to close the mold, so that the bottle preform can be clamped in the mold cavity 3 for bottle blowing. After the bottle blowing is completed, the mold driving hydraulic cylinder 4 is controlled to drive the first mold 1 and the second mold 2 to separate. The device can be installed with multiple specifications of positioning clamping seats 16 according to the size of the bottle mouth of the bottle preform. When different specifications of positioning seats need to be switched, When clamping the clamping seat 16, it is only necessary to control the linear drive 5 to drive the hydraulic telescopic rod 6 together with the cross-shaped fixing frame 9 away from the first mold 1 and the second mold 2, and then control the motor 8 to rotate and drive the cross-shaped fixing frame 9 to rotate, and switch the positioning clamping seat 16 of the required specification to the working position, and then control the linear drive 5 to drive the hydraulic telescopic rod 6 to reset. The device can also adjust the height of the cross-shaped fixing frame 9 and the positioning clamping seat 16 through the hydraulic telescopic rod 6 to adapt to the first mold 1 and the second mold 2 of different heights. The device can also quickly replace the installed positioning clamping seat 16. When replacing, unscrew the locking bolt 14 and the mounting block 15 can be pulled out of the mounting socket 12. When replacing the new positioning clamping seat 16, when the mounting block 15 is inserted into the mounting socket 12, the locking screw holes 13 on the mounting socket 12 and the mounting block 15 are aligned with each other, and the locking bolt 14 is used to fix the two.

[0034] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] In this article, specific examples are used to elaborate on the principles and implementation modes of the present utility model. The descriptions of the above examples are only used to help understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limited nature of written expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. A bottle mouth positioning device for a PET bottle blowing machine, characterized in that: The invention comprises a first mold (1), a second mold (2), and a linear drive (5), wherein a mold driving hydraulic cylinder (4) is provided on the side of the first mold (1) and the second mold (2), one end of the mold driving hydraulic cylinder (4) is connected to a bottle blowing machine, the linear drive (5) is installed on the machine platform of the bottle blowing machine, a hydraulic telescopic rod (6) is installed on the top of the linear drive (5), a mounting plate (7) is installed on the top of the hydraulic telescopic rod (6), and a motor (8) is installed on the side of the mounting plate (7) The output end of the motor (8) is connected to a cross-shaped fixing frame (9) through a rotating shaft. Four groups of positioning fixture mounting frames (10) are arranged in a ring on the outer side of the cross-shaped fixing frame (9). A servo electric cylinder (11) is installed on the inner side of the positioning fixture mounting frame (10). The piston rod end of the servo electric cylinder (11) is connected to a mounting socket (12). A mounting plug (15) is inserted into the inner side of the mounting socket (12). One side of the mounting plug (15) is connected to a positioning clamping seat (16).

2. A bottle mouth positioning device for a PET bottle blowing machine according to claim 1, characterized in that: A mold cavity (3) is provided inside the first mold (1) and the second mold (2).

3. A bottle mouth positioning device for a PET bottle blowing machine according to claim 1, characterized in that: A locking screw hole (13) is provided between the inner side and the outer side of the mounting socket (12), and a locking screw hole (13) is also provided on the outer side of the mounting plug block (15). The locking screw hole (13) on the mounting socket (12) and the locking screw hole (13) on the mounting plug block (15) are connected via a locking bolt (14).

4. A bottle mouth positioning device for a PET bottle blowing machine according to claim 1, characterized in that: A bottle mouth fixing groove (17) is provided on the inner side of the positioning clamping seat (16).

5. A bottle mouth positioning device for a PET bottle blowing machine according to claim 1, characterized in that: The insertion hole inside the installation socket (12) and the installation plug block (15) are both in the shape of a quadrangular prism.

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