CN110843194A

CN110843194A - Variable-pitch device applied to bottle blowing machine

Info

Publication number: CN110843194A
Application number: CN201911057875.4A
Authority: CN
Inventors: 王其业; 罗秋华; 丘福贵
Original assignee: Guangzhou Lide Precision Machinery Co Ltd
Current assignee: Guangzhou Lide Precision Machinery Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-02-28

Abstract

The invention discloses a variable-pitch device applied to a bottle blowing machine, a sliding mechanism comprises a sliding driving unit, a sliding guide rail and a sliding frame plate, the sliding driving unit can drive the sliding frame plate to move left and right along the sliding guide rail, a first variable-pitch mechanism comprises a first motor, a first screw rod with a front and back extending axis, a first nut seat in threaded connection with the first screw rod, a variable-pitch guide rail with a front and back extending axis fixed on the sliding frame plate, a connecting plate in sliding connection with the variable-pitch guide rail and a first movable fork block arranged on the connecting plate, the connecting plate is fixedly connected with the first nut seat, the first motor is in transmission connection with the first screw rod, a second variable-pitch mechanism comprises a second motor, a second screw rod with a front and back extending axis, a second nut seat in threaded connection with the second screw rod and a second movable fork block arranged on the second nut seat, the second nut seat is in sliding connection with the variable-, the second movable fork blocks and the first movable fork blocks are arranged in a front-back mode, and bottle blank accurate variable-pitch conveying can be achieved.

Description

Variable-pitch device applied to bottle blowing machine

Technical Field

The invention relates to the technical field of bottle blowing machine equipment, in particular to a variable-pitch device applied to a bottle blowing machine.

Background

A bottle blowing machine is an apparatus for heating an injection molded bottle blank tube (referred to as a "bottle blank") and blowing the bottle blank heated to a certain temperature into a mold with air of a suitable pressure to form a bottle, and generally includes a feeding unit, a conveying unit, a heating unit, a blow molding unit, a finished product taking-out unit, and the like. The bottle blanks are conveyed to the conveying unit from the feeding unit, conveyed to the heating unit by the conveying unit, heated to a preset temperature, conveyed to a mold of the blow molding unit for blow molding, and finally conveyed out by the finished product taking-out unit. In order to improve the production efficiency, the mold in the blow molding unit is required to blow two bottle preforms simultaneously to form a finished product, and in order to heat the bottle preforms uniformly, the bottle preforms are generally moved continuously at a constant speed on the upper conveying unit, but before the bottle preforms are fed into the blow molding unit, the distance between the two bottle preforms needs to be changed, so that the distance between the two bottle preforms corresponds to the distance between the two bottle preforms blown by the mold, and therefore, the bottle preforms need to be subjected to pitch adjustment.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a variable-pitch device applied to a bottle blowing machine, which can realize accurate variable-pitch conveying of bottle blanks and has a simple structure.

The pitch-variable device applied to the bottle blowing machine according to the embodiment of the invention comprises: the device comprises a substrate, a sliding mechanism, a first variable pitch mechanism and a second variable pitch mechanism.

The glide machanism includes the drive unit that slides, the guide rail that slides, the frame plate that slides, the guide rail that slides is left and right sides and extends the setting, the frame plate that slides and the guide rail sliding connection that slides, the drive unit fixed mounting that slides is on the base plate, the drive unit that slides and the frame plate transmission of sliding are connected.

The first variable-pitch mechanism comprises a first motor, a first screw rod, a first nut seat, a connecting plate and a variable-pitch guide rail, wherein the first motor is installed on the sliding frame plate, the axis of the first screw rod extends forwards and backwards, the first nut seat is in threaded connection with the first screw rod, the variable-pitch guide rail extends forwards and backwards and is fixed on the sliding frame plate, the connecting plate is in sliding connection with the variable-pitch guide rail, the connecting plate is fixedly connected with the first nut seat, the first motor is in transmission connection with the first screw rod, and a first movable fork block is installed on the connecting plate.

The second variable-pitch mechanism comprises a second motor arranged on the connecting plate, a second screw rod with the axis extending forwards and backwards, a second nut seat in threaded connection with the second screw rod, and a second movable fork block arranged on the second nut seat, wherein the second nut seat is in sliding connection with the variable-pitch guide rail, and the second movable fork block and the first movable fork block are arranged at intervals in the front and back direction.

The pitch-variable device applied to the bottle blowing machine according to the embodiment of the invention at least has the following technical effects: when two bottle blanks are conveyed to the side of the variable-pitch device, the sliding driving unit drives the sliding frame plate to move along the sliding guide rail, so that the first moving fork block and the second moving fork block respectively fork the two bottle blanks, the first motor drives the first screw rod to rotate, the first screw rod drives the connecting plate to move backwards along the variable-pitch guide rail through the first screw seat, further the first moving fork block and the second moving fork block are driven to move backwards relative to the sliding frame plate, meanwhile, the second motor drives the second screw rod to rotate reversely, the second screw rod drives the second screw seat to move forwards relative to the connecting plate, so that the second moving fork block moves forwards relative to the first moving fork block, the second moving fork block and the first moving fork block are separated from each other, under the situation that the two bottle blanks move backwards, the pitch change is realized between the two bottle blanks simultaneously, after the two bottle blanks are conveyed to a set position, the sliding driving unit drives the sliding frame plate to move backwards along the sliding guide rail, the first movable fork block and the second movable fork block are disengaged, the first motor drives the first screw rod to rotate, the second motor drives the second screw rod to rotate, the second movable fork block and the first movable fork block move forwards to the initial position, next circulation action is continued, the adjustment precision of the pitch can be improved through transmission of the screw rod and the nut, and the structure is simple.

According to some embodiments of the invention, the sliding guide rail is provided in plurality, the sliding guide rails are arranged in a front-back interval manner, the sliding frame plate is arranged in a front-back extending manner, and the sliding frame plate is respectively connected with the sliding guide rails in a sliding manner.

According to some embodiments of the invention, a plurality of sliding blocks are mounted at the bottom of the sliding frame plate, and the sliding blocks are in one-to-one corresponding sliding connection with the sliding guide rails.

According to some embodiments of the present invention, the sliding driving unit comprises a mounting seat fixed on the base plate, and a sliding driving cylinder mounted on the mounting seat, wherein the sliding driving cylinder is in transmission connection with the sliding frame plate.

According to some embodiments of the invention, the connecting plate extends forwards and backwards, an end plate is fixedly connected to the front end of the connecting plate, and the first nut seat and the second motor are mounted on the end plate.

According to some embodiments of the invention, the second moving fork block and the first moving fork block both extend to the left side, the left end of the first moving fork block is provided with an arc-shaped first groove, and the left end of the second moving fork block is provided with an arc-shaped second groove.

According to some embodiments of the invention, a mold fork block extending towards the left side is mounted on the connecting plate, the first moving fork block and the mold fork block are arranged at intervals in the front-back direction, two third grooves are arranged at the left end of the mold fork block at intervals in the front-back direction, and the first groove, the second groove and the third groove are matched in shape and size.

According to some embodiments of the invention, a pushing fork block extending leftwards is installed at the rear part of the connecting plate, and the mold fork block and the pushing fork block are arranged at intervals in the front-back direction.

According to some embodiments of the invention, a plurality of variable-pitch sliders are mounted on the bottom surface of the connecting plate, the variable-pitch sliders are arranged at intervals in a front-back manner, and the connecting plate is slidably connected with the variable-pitch guide rail through the variable-pitch sliders.

According to some embodiments of the invention, two bearing seats are fixedly connected to the right side of the sliding frame plate, the two bearing seats are arranged in a front-back spaced manner, and the front end and the rear end of the first screw rod are respectively and rotatably connected with the two bearing seats.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a first schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii according to an embodiment of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. The technical characteristics of the invention can be combined interactively on the premise of not conflicting with each other.

A variable pitch apparatus applied to a bottle blowing machine according to an embodiment of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1 and 2, a variable pitch device for a bottle blowing machine according to an embodiment of the present invention includes: base plate 100, glide mechanism 200, first variable pitch mechanism 300, second variable pitch mechanism 400.

Specifically, the sliding mechanism 200 includes a sliding driving unit, a sliding guide rail 210, and a sliding frame plate 220, wherein the sliding guide rail 210 extends left and right, the sliding frame plate 220 is slidably connected to the sliding guide rail 210, the sliding driving unit is fixedly mounted on the substrate 100, the sliding driving unit is in transmission connection with the sliding frame plate 220, and the sliding driving unit can drive the sliding frame plate 220 to move left and right along the sliding guide rail 210.

The first variable-pitch mechanism 300 comprises a first motor 310 mounted on the sliding frame plate 220, a first screw rod 320 with an axis extending forwards and backwards, a first nut seat 330 in threaded connection with the first screw rod 320, a connecting plate 340 and a variable-pitch guide rail 350, wherein the variable-pitch guide rail 350 extends forwards and backwards and is fixed on the sliding frame plate 220, the connecting plate 340 is in sliding connection with the variable-pitch guide rail 350, the connecting plate 340 is fixedly connected with the first nut seat 330, the first motor 310 is in transmission connection with the first screw rod 320, and a first moving fork block 360 is mounted on the connecting plate 340.

The second variable-pitch mechanism 400 includes a second motor 410 mounted on the connecting plate 340, a second lead screw 420 having an axis extending back and forth, a second nut seat 430 in threaded connection with the second lead screw 420, and a second moving fork 440 mounted on the second nut seat 430, wherein the second nut seat 430 is slidably connected to the variable-pitch guide 350, and the second moving fork 440 and the first moving fork 360 are arranged at a distance from each other back and forth.

When two bottle blanks are conveyed to the side of the variable pitch device, the sliding driving unit drives the sliding frame plate 220 to move leftwards along the sliding guide rail 210, so that the first moving fork block 360 and the second moving fork block 440 respectively fork the two bottle blanks, the first motor 310 drives the first screw rod 320 to rotate, the first screw rod 320 drives the connecting plate 340 to move backwards along the variable pitch guide rail 350 through the first nut seat 330, further the first moving fork block 360 and the second moving fork block 440 are driven to move backwards relative to the sliding frame plate 220, meanwhile, the second motor 410 drives the second screw rod 420 to rotate reversely, the second screw rod 420 drives the second nut seat 430 to move forwards relative to the connecting plate 340, so that the second moving fork block 440 moves forwards relative to the first moving fork block 360, the second moving fork block 440 and the first moving fork block 360 are separated from each other, and when the two bottle blanks move backwards, the variable pitch is realized between the two bottle blanks, after the two bottle blanks are conveyed to the set position, the sliding driving unit drives the sliding frame plate 220 to move back along the sliding guide rail 210, so that the first moving fork block 360 and the second moving fork block 440 are disengaged, the first motor 310 drives the first screw rod 320 to rotate back, the second motor 410 drives the second screw rod 420 to rotate back, the second moving fork block 440 and the first moving fork block 360 move forward to the initial position, the next circulation action is continued, the adjustment precision of the pitch can be improved through the transmission of the screw rod and the nut, and the structure is simple.

In some embodiments of the present invention, there are a plurality of the sliding guide rails 210, the sliding guide rails 210 are arranged in a front-to-back spaced arrangement, the sliding frame plate 220 extends in a front-to-back direction, and the sliding frame plate 220 is slidably connected to the sliding guide rails 210 respectively. The sliding frame plate 220 can slide left and right along the plurality of sliding rails 210, so that the sliding of the sliding frame plate 220 is more stable.

In some embodiments of the present invention, a plurality of sliding blocks 221 are installed at the bottom of the sliding frame plate 220, and the sliding blocks 221 are in one-to-one sliding connection with the sliding guide rails 210. The sliding block 221 is matched with the sliding guide rail 210, so that the sliding fluency of the sliding frame plate 220 can be improved.

In some embodiments of the present invention, the sliding driving unit includes a mounting base 230 fixed on the base plate 100, and a sliding driving cylinder 240 mounted on the mounting base 230, wherein the sliding driving cylinder 240 is in driving connection with the sliding frame plate 220. The sliding driving cylinder 240 extends left and right, the sliding frame plate 220 is driven to move left and right through the sliding driving cylinder 240, rapidity of the sliding frame plate 220 can be improved, and the second moving fork block 440 and the first moving fork block 360 can quickly fork or fall off bottle blanks.

In some embodiments of the present invention, the connecting plate 340 extends forward and backward, an end plate 341 is fixedly connected to a front end of the connecting plate 340, and the first nut holder 330 and the second motor 410 are mounted on the end plate 341. The end plate 341 mainly realizes the fixed connection between the second motor 410 and the first nut holder 330, so that the overall structure is compact.

In some embodiments of the present invention, the second moving fork 440 and the first moving fork 360 extend to the left, the left end of the first moving fork 360 is provided with an arc-shaped first groove 361, and the left end of the second moving fork 440 is provided with an arc-shaped second groove 441. Generally, a conveying unit on a bottle blowing machine is provided with a movable support for clamping bottle blanks, the bottle blanks are clamped on the movable support, the corresponding movable support is mainly dragged to move by the first movable fork block 360 and the second movable fork block 440, and the movable support is integrally cylindrical, so that the movable support is clamped by the first movable fork block 360 through the first groove 361, and the movable support is clamped by the second movable fork block 440 through the second groove 441.

In some embodiments of the present invention, a mold fork 370 extending to the left is mounted on the connecting plate 340, the first moving fork 360 and the mold fork 370 are spaced back and forth, two third grooves 371 are formed at the left end of the mold fork 370, the two third grooves 371 are spaced back and forth, and the first groove 361, the second groove 441, and the third grooves 371 are matched in shape and size. After the two movable supports realize pitch variation through dragging of the first movable fork block 360 and the second movable fork block 440, the two movable supports are moved to the initial position of the mold fork block 370, when next cycle action is performed, the mold fork block 370 respectively forks the two movable supports through the two third grooves 371, and under the driving of the connecting plate 340, the mold fork block 370 moves backwards, so that the two movable supports with the pitch variation are driven to be conveyed into a mold of the blow molding unit.

In some embodiments of the present invention, a pushing fork 380 extending to the left is installed at the rear of the connecting plate 340, and the mold fork 370 and the pushing fork 380 are arranged in a front-to-back spaced arrangement. The positions of the two movable brackets on the mold of the blow molding unit are also the initial positions of the pushing fork blocks 380, and the two bottle blanks subjected to blow molding by the blow molding unit are pushed by the pushing fork blocks 380 to continue to be pushed backwards, namely pushed to the finished product taking-out unit.

In some embodiments of the present invention, a plurality of variable-pitch sliders 342 are mounted on a bottom surface of the connecting plate 340, the variable-pitch sliders 342 are arranged in a front-to-back spaced arrangement, and the connecting plate 340 is slidably connected to the variable-pitch guide 350 through the variable-pitch sliders 342. This can improve the stability and smoothness of the sliding of the connection plate 340.

In some embodiments of the present invention, two bearing seats 222 are fixedly connected to the right side of the sliding frame plate 220, the two bearing seats 222 are arranged in a front-to-back spaced manner, and the front end and the rear end of the first lead screw 320 are rotatably connected to the two bearing seats 222, respectively. The two bearing seats 222 can improve the stability of the first lead screw 320, so that the bearing capacity of the first lead screw 320 is increased, and the bottle blank with larger size can be satisfied.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A pitch-variable device applied to a bottle blowing machine is characterized by comprising:

a substrate (100);

the sliding mechanism (200) comprises a sliding driving unit, a sliding guide rail (210) and a sliding frame plate (220), wherein the sliding guide rail (210) extends leftwards and rightwards, the sliding frame plate (220) is in sliding connection with the sliding guide rail (210), the sliding driving unit is fixedly arranged on the base plate (100), and the sliding driving unit is in transmission connection with the sliding frame plate (220);

the first variable-pitch mechanism (300) comprises a first motor (310) arranged on a sliding frame plate (220), a first screw rod (320) with an axis extending forwards and backwards, a first nut seat (330) in threaded connection with the first screw rod (320), a connecting plate (340) and a variable-pitch guide rail (350), wherein the variable-pitch guide rail (350) extends forwards and backwards and is fixed on the sliding frame plate (220), the connecting plate (340) is in sliding connection with the variable-pitch guide rail (350), the connecting plate (340) is fixedly connected with the first nut seat (330), the first motor (310) is in transmission connection with the first screw rod (320), and a first movable fork block (360) is arranged on the connecting plate (340);

the second variable-pitch mechanism (400) comprises a second motor (410) arranged on a connecting plate (340), a second screw rod (420) with an axis extending forwards and backwards, a second nut seat (430) in threaded connection with the second screw rod (420), and a second movable fork block (440) arranged on the second nut seat (430), wherein the second nut seat (430) is in sliding connection with the variable-pitch guide rail (350), and the second movable fork block (440) and the first movable fork block (360) are arranged at intervals in a front-back mode.

2. The variable-pitch device for the bottle blowing machine according to claim 1, wherein a plurality of sliding rails (210) are provided, the sliding rails (210) are arranged in a front-to-back spaced manner, the sliding frame plate (220) extends in a front-to-back manner, and the sliding frame plate (220) is slidably connected with the sliding rails (210) respectively.

3. The variable-pitch device applied to the bottle blowing machine according to claim 2 is characterized in that a plurality of sliding blocks (221) are installed at the bottom of the sliding frame plate (220), and the sliding blocks (221) are in one-to-one corresponding sliding connection with the sliding guide rails (210).

4. The variable pitch device applied to the bottle blowing machine according to claim 1 is characterized in that: the sliding driving unit comprises a mounting seat (230) fixed on the substrate (100) and a sliding driving cylinder (240) mounted on the mounting seat (230), and the sliding driving cylinder (240) is in transmission connection with the sliding frame plate (220).

5. The variable pitch device applied to the bottle blowing machine according to claim 1, wherein the connecting plate (340) extends forward and backward, an end plate (341) is fixedly connected to the front end of the connecting plate (340), and the first nut seat (330) and the second motor (410) are mounted on the end plate (341).

6. The variable pitch device for bottle blowing machine according to claim 1, wherein the second moving fork (440) and the first moving fork (360) both extend to the left, the left end of the first moving fork (360) is provided with an arc-shaped first groove (361), and the left end of the second moving fork (440) is provided with an arc-shaped second groove (441).

7. The variable pitch device applied to the bottle blowing machine according to claim 6 is characterized in that a mold fork block (370) extending towards the left side is installed on the connecting plate (340), the first movable fork block (360) and the mold fork block (370) are arranged in a front-back interval manner, two third grooves (371) are arranged at the left end of the mold fork block (370), the two third grooves (371) are arranged in a front-back interval manner, and the shapes and the sizes of the first groove (361), the second groove (441) and the third grooves (371) are matched.

8. The variable pitch device applied to the bottle blowing machine of claim 7 is characterized in that a pushing fork block (380) extending leftwards is installed at the rear part of the connecting plate (340), and the mold fork blocks (370) and the pushing fork block (380) are arranged at intervals in the front-back direction.

9. The variable-pitch device applied to the bottle blowing machine according to claim 1, wherein a plurality of variable-pitch sliders (342) are mounted on the bottom surface of the connecting plate (340), the variable-pitch sliders (342) are arranged in a front-back interval manner, and the connecting plate (340) is slidably connected with the variable-pitch guide rail (350) through the variable-pitch sliders (342).

10. The variable-pitch device applied to the bottle blowing machine according to claim 1, wherein two bearing seats (222) are fixedly connected to the right side of the sliding frame plate (220), the two bearing seats (222) are arranged in a front-back spaced manner, and the front end and the rear end of the first screw rod (320) are respectively rotatably connected with the two bearing seats (222).