Pitch changing device of bottle blowing machine

Abstract

The utility model discloses a variable pitch device of a bottle blowing machine, which comprises a mounting bracket, a driven wheel module and a driving wheel module are respectively mounted on the left side and the right side of the mounting bracket, the driving wheel module is in transmission connection with the driven wheel module through a synchronous belt, a slide way for bottle blanks to slide is arranged on the upper rear part of the synchronous belt, and the upper rear part of the synchronous belt is connected with the driving wheel module. A driving wheel module is installed on the top of the driving wheel module, a plurality of shifting pieces are installed on the outer side of the shifting wheel, a plurality of equidistant blank distributing modules are evenly distributed and installed on the outer side of the synchronous belt, each equidistant blank distributing module comprises a fixing base, a shaft is arranged on the inner side of a shaft sleeve in a sleeving mode, and a one-way iron shifting piece is connected to the top of the shaft; an abutting seat for the one-way iron shifting piece to abut against is installed on the top of the fixing seat, and a magnet attracted with the one-way iron shifting piece is installed on the abutting seat. The device is simple in structure and high in variable-pitch precision, the one-way iron shifting piece is reset and fixed by using the magnet, the device is stable in long-term use, the blank distribution precision is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machines, and particularly relates to a variable pitch device for a bottle blowing machine. Background Art

[0002] A bottle blowing machine is a two-step full-automatic stretch blow molding device, that is, a machine that can blow plastic particles (softened into a liquid) or preforms into bottles through certain technological means. The transmission device is a device for transmitting preforms in a bottle blowing machine. Usually, during the production process of preforms, it is necessary to change the distance between preforms according to work requirements. The variable pitch device is an important part of the transmission device. However, the structure of the existing variable pitch device for a bottle blowing machine is relatively complex, the pitch change accuracy is not high, post-maintenance is inconvenient, the operating speed is slow, which is not conducive to mass production. The equal-distance embryo separating module uses a spring for resetting. After long-term use, the spring is prone to failure, affecting the embryo separating accuracy, and even needs to be replaced, affecting the production efficiency, and the use effect is not good. Therefore, in order to avoid the disadvantages existing in the prior art, it is necessary to improve the prior art. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a variable pitch device with high embryo separating accuracy and high production efficiency.

[0004] The utility model is realized by the following technical solutions:

[0005] A variable pitch device for a bottle blowing machine includes a mounting bracket. A driven wheel module and a driving wheel module are respectively installed on the left and right sides of the mounting bracket. A servo motor driving module for driving the driving wheel module to rotate is installed on the right side of the mounting bracket. The driving wheel module and the driven wheel module are connected by a synchronous belt for transmission. A slideway for the preform to slide is provided at the upper rear of the synchronous belt. A dial is installed on the top of the driving wheel module, and a plurality of dial pieces are installed on the outside of the dial. A plurality of equal-distance embryo separating modules are evenly installed on the outside of the synchronous belt. The equal-distance embryo separating module includes a fixed seat. A bushing is installed on the upper part of the fixed seat. A shaft is sleeved inside the bushing. A one-way iron dial piece is connected to the top of the shaft. A abutting seat for the one-way iron dial piece to abut against is installed on the top of the fixed seat. A magnet that attracts the one-way iron dial piece is installed on the abutting seat.

[0006] Further, a stop piece is installed on the left side of the mounting bracket, and a return block corresponding to the stop piece is installed at the bottom of the shaft.

[0007] Further, the one-way iron dial piece is locked to the shaft by a locking screw. Corresponding locking screw holes are provided at the top of the shaft and the one-way iron dial piece. A locking nut is screwed at the bottom of the shaft.

[0008] Furthermore, a driving pulley connected to the synchronous belt drive is provided on the top of the driving wheel module, the servo motor drive module includes a servo motor, the motor shaft of the servo motor is connected to a driving shaft through a coupling, the driving pulley is installed on the top of the driving shaft, and the mounting bracket is provided with a driving shaft mounting sleeve for installing the driving shaft.

[0009] Furthermore, a driven pulley connected to the synchronous belt transmission is provided on the top of the driven pulley module, and a support shaft for installing the driven pulley is installed on the left side of the mounting bracket.

[0010] Furthermore, the fixing seat is provided with a mounting groove for mounting the abutting seat.

[0011] Furthermore, the fixing seat is mounted on the synchronous belt via a first screw, and the abutting seat and the magnet are both mounted on the fixing seat via a second screw.

[0012] Furthermore, the slide includes a front slide plate and a rear slide plate, the front slide plate is provided with a plurality of front long strip mounting holes extending forward and backward, the rear slide plate is provided with a plurality of rear long strip mounting holes extending left and right, and the front side of the rear slide plate is provided with a bottle embryo flange guide groove.

[0013] Furthermore, a protective cover is provided on the front side of the mounting bracket.

[0014] Furthermore, the mounting bracket includes a lower mounting plate, an upper mounting plate, and a plurality of support columns connecting the lower mounting plate and the upper mounting plate.

[0015] Compared with the prior art, the utility model is connected through a driving wheel module and a driven wheel module through a synchronous belt transmission, a slideway for the bottle embryo to slide is provided at the upper rear of the synchronous belt, a paddle wheel is installed on the top of the driving wheel module, a plurality of paddles are installed on the outer side of the paddle wheel, a plurality of equidistant embryo separation modules are evenly installed on the outer side of the synchronous belt, the equidistant embryo separation module includes a fixed seat, a shaft sleeve is installed on the upper part of the fixed seat, a shaft is sleeved on the inner side of the shaft sleeve, a one-way iron paddle is connected to the top of the shaft, and a one-way iron paddle is installed on the top of the fixed seat. The abutment seat is abutted against, and the abutment seat is equipped with a magnet attracted to the one-way iron pick. The pull wheel first moves the bottle preforms placed on the slide to the left, and the equidistant preform separation module on the synchronous belt then moves the bottle preforms to the left to ensure that the distances between the bottle preforms are equal, so that the variable pitch device of the bottle blowing machine has a simple structure, high pitch variation accuracy, convenient later maintenance, and fast running speed. The one-way iron pick is reset and fixed by a magnet, which will not fail after long-term use, ensuring the precision of preform separation, improving production efficiency, and having a good use effect, which is conducive to mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the variable pitch device of the blow molding machine of the present invention;

[0018] Figure 2 It is a schematic internal structure diagram of the variable pitch device of the blow molding machine of the present invention;

[0019] Figure 3 It is a schematic structural diagram of the equal pitch embryo dividing module of the present invention;

[0020] Figure 4 It is an exploded view of the structure of the equal pitch embryo dividing module of the present invention.

[0021] In the figure: 1 - synchronous belt; 2 - slideway; 3 - dial wheel; 4 - dial piece; 5 - equal pitch embryo dividing module; 6 - fixed seat; 7 - bushing; 8 - shaft; 9 - one-way iron dial piece; 10 - abutting seat; 11 - magnet; 12 - retaining piece; 13 - return block; 14 - locking nut; 15 - driving pulley; 16 - servo motor; 17 - coupling; 18 - driving shaft; 19 - driving shaft mounting bushing; 20 - driven pulley; 21 - support shaft; 22 - mounting groove; 23 - front slideway plate; 24 - rear slideway plate; 25 - front elongated mounting hole; 26 - rear elongated mounting hole; 27 - bottle embryo flange guide groove; 28 - protective cover; 29 - lower mounting plate; 30 - upper mounting plate; 31 - support column. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] Such as Figures 1 to 4The variable pitch device of a bottle blowing machine of the utility model shown in the figure comprises a mounting bracket, a driven wheel module and a driving wheel module are respectively mounted on the left and right sides of the mounting bracket, a servo motor driving module for driving the driving wheel module to rotate is mounted on the right side of the mounting bracket, the driving wheel module and the driven wheel module are connected through a synchronous belt 1, a slideway 2 for the preform to slide is arranged at the upper rear of the synchronous belt 1, a paddle wheel 3 is mounted on the top of the driving wheel module, a plurality of paddles 4 are mounted on the outer side of the paddle wheel 3, a plurality of equidistant embryo separation modules 5 are evenly mounted on the outer side of the synchronous belt 1, the equidistant embryo separation module 5 comprises a fixed seat 6, a shaft sleeve 7 is mounted on the upper part of the fixed seat 6, a shaft 8 is sleeved on the inner side of the shaft sleeve 7, a one-way iron paddle 9 is connected to the top of the shaft 8, a support seat 10 for the one-way iron paddle 9 to abut is mounted on the top of the fixed seat 6, and a magnet 11 attracted to the one-way iron paddle 9 is mounted on the support seat 10. The driving wheel module and the driven wheel module are connected through a synchronous belt 1. A slideway 2 for the bottle embryo to slide is provided at the upper rear of the synchronous belt 1. A paddle wheel 3 is installed on the top of the driving wheel module. A plurality of paddles 4 are installed on the outer side of the paddle wheel 3. A plurality of equidistant embryo separation modules 5 are evenly installed on the outer side of the synchronous belt 1. The equidistant embryo separation module 5 includes a fixed seat 6. A shaft sleeve 7 is installed on the upper part of the fixed seat 6. A shaft 8 is sleeved on the inner side of the shaft sleeve 7. A one-way iron paddle 9 is connected to the top of the shaft 8. A stopper for the one-way iron paddle 9 to abut is installed on the top of the fixed seat 6. The support seat 10 is provided with a magnet 11 attracted to the one-way iron pick 9. The pull wheel 3 first moves the preform placed on the slide 2 to the left, and the equidistant preform separation module 5 on the synchronous belt 1 moves the preform to the left to ensure that the distances between the preforms are equal, so that the variable pitch device of the bottle blowing machine has a simple structure, high pitch variation accuracy, convenient later maintenance, and fast running speed. The magnet 11 is used to reset and fix the one-way iron pick 9, which will not fail after long-term use, ensuring the precision of preform separation, improving production efficiency, and having a good use effect, which is conducive to mass production.

[0024] A baffle 12 is installed on the left side of the mounting bracket, and a return block 13 corresponding to the baffle 12 is installed at the bottom of the shaft 8. The clamping and transverse movement module is used during operation. The clamping and transverse movement module is used to clamp the bottle preform and drive the bottle preform to move to the left and move to the next station. At this time, the one-way iron pick 9 can rotate to the left without hindering the movement of the bottle preform. In order to ensure the reset of the one-way iron pick 9, the baffle 12 is set to abut the return block 13, so that the one-way iron pick 9 is stably attracted to the magnet 11.

[0025] The one-way iron pick 9 is locked to the shaft 8 by a locking screw. The top of the shaft 8 and the one-way iron pick 9 are both provided with corresponding locking screw holes. The bottom of the shaft 8 is threaded with a locking nut 14 to facilitate the quick installation of the one-way iron pick 9.

[0026] At the top of the driving wheel module, there is a driving pulley 15 that is drivingly connected to the synchronous belt 1. The servo motor driving module includes a servo motor 16. The motor shaft of the servo motor 16 is connected to a driving shaft 18 through a coupling 17. The driving pulley 15 is installed at the top of the driving shaft 18. The mounting bracket is provided with a driving shaft mounting bushing 19 for installing the driving shaft 18, making the rotation of the driving pulley 15 smoother and the transmission more stable.

[0027] At the top of the driven wheel module, there is a driven pulley 20 that is drivingly connected to the synchronous belt 1. On the left side of the mounting bracket, there is a support shaft 21 for installing the driven pulley 20, making the installation of the driven pulley 20 more stable and the transmission more smooth.

[0028] The fixing seat 6 is provided with a mounting groove 22 for installing the abutting seat 10, making the installation of the abutting seat 10 more convenient and preventing the abutting seat 10 from rotating after installation.

[0029] The fixing seat 6 is installed on the synchronous belt 1 through the first screw. The abutting seat 10 and the magnet 11 are both installed on the fixing seat 6 through the second screw, facilitating the installation of the equal-distance embryo splitting module 5 and the installation of the magnet 11.

[0030] The slideway 2 includes a front slideway plate 23 and a rear slideway plate 24. The front slideway plate 23 is provided with a number of front elongated mounting holes 25 extending in the front-rear direction. The rear slideway plate 24 is provided with a number of rear elongated mounting holes 26 extending in the left-right direction. On the front side of the rear slideway plate 24, there is a bottle embryo flange guide groove 27, making the width of the slideway 2 adjustable, suitable for transporting bottle embryos of different sizes, and positioning the transportation of the bottle embryos at the same time, making the transportation more stable.

[0031] On the front side of the mounting bracket, there is a protective cover 28, effectively protecting the variable pitch device from being affected by the outside world during operation.

[0032] The mounting bracket includes a lower mounting plate 29, an upper mounting plate 30, and a number of support columns 31 connecting the lower mounting plate 29 and the upper mounting plate 30, making the structure of the mounting bracket simple, convenient to assemble and maintain.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A variable pitch device for a bottle blowing machine, characterized in that: The invention comprises a mounting bracket, wherein a driven wheel module and a driving wheel module are respectively mounted on the left and right sides of the mounting bracket, a servo motor driving module for driving the driving wheel module to rotate is mounted on the right side of the mounting bracket, the driving wheel module and the driven wheel module are connected through a synchronous belt transmission, a slideway for the bottle embryo to slide is arranged at the upper rear of the synchronous belt, a paddle is mounted on the top of the driving wheel module, a plurality of paddles are mounted on the outer side of the paddle wheel, a plurality of equidistant embryo dividing modules are evenly mounted on the outer side of the synchronous belt, the equidistant embryo dividing module comprises a fixed seat, a shaft sleeve is mounted on the upper part of the fixed seat, a shaft is mounted on the inner side of the shaft sleeve, a one-way iron paddle is connected to the top of the shaft, a supporting seat for the one-way iron paddle to abut is mounted on the top of the fixed seat, and a magnet attracted to the one-way iron paddle is mounted on the supporting seat.

2. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: A blocking piece is installed on the left side of the mounting bracket, and a return block corresponding to the blocking piece is installed on the bottom of the shaft.

3. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: The one-way iron pick is locked to the shaft by a locking screw, the top of the shaft and the one-way iron pick are both provided with corresponding locking screw holes, and the bottom of the shaft is threaded with a locking nut.

4. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: A driving pulley connected to the synchronous belt drive is provided on the top of the driving wheel module, and the servo motor drive module includes a servo motor. The motor shaft of the servo motor is connected to a driving shaft through a coupling, and the driving pulley is installed on the top of the driving shaft. The mounting bracket is provided with a driving shaft mounting sleeve for mounting the driving shaft.

5. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: A driven pulley connected to the synchronous belt transmission is arranged on the top of the driven pulley module, and a support shaft for installing the driven pulley is arranged on the left side of the mounting bracket.

6. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: The fixing seat is provided with a mounting groove for mounting the abutting seat.

7. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: The fixing seat is mounted on the synchronous belt via a first screw, and the abutting seat and the magnet are both mounted on the fixing seat via a second screw.

8. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: The slide includes a front slide plate and a rear slide plate. The front slide plate is provided with a plurality of front long strip mounting holes extending forward and backward, the rear slide plate is provided with a plurality of rear long strip mounting holes extending left and right, and a preform flange guide groove is provided on the front side of the rear slide plate.

9. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: A protective cover is provided on the front side of the mounting bracket.

10. The variable pitch device of the bottle blowing machine according to claim 1, characterized in that: The mounting bracket comprises a lower mounting plate, an upper mounting plate and a plurality of supporting columns connecting the lower mounting plate and the upper mounting plate.

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