CN112078077A

CN112078077A - Bubble breaking machine

Info

Publication number: CN112078077A
Application number: CN202011082717.7A
Authority: CN
Inventors: 吴壮利
Original assignee: Wuhan Zhengwei Machinery Co ltd
Current assignee: Wuhan Zhengwei Machinery Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2020-12-15

Abstract

The invention relates to a bubble breaking machine, which is characterized in that: the device comprises a rack, at least two conveying lines and at least two foam breaking units, wherein the at least two conveying lines and the at least two foam breaking units are arranged on the rack, the foam breaking units and the conveying lines are arranged in a one-to-one correspondence manner, and the foam breaking units are divided into vacuum foam breaking units and rolling foam breaking units; wherein, broken bubble unit in vacuum includes drive assembly, the movable support, the vacuum chamber, vacuum chamber guide pillar and counter weight subassembly, drive assembly is used for driving the movable support and reciprocates, the vacuum chamber passes through the vacuum chamber guide pillar hoist and mount in the movable support below and can reciprocate for the movable support, the counter weight subassembly includes balancing weight, sprocket, and mesh in the epaxial balancing weight chain of sprocket, the sprocket through the wheel hub connection of horizontal extension in the frame and be located the vacuum chamber top, the one end and the balancing weight of balancing weight chain are fixed, the other end is fixed with the vacuum chamber. The invention has wide application range, high working efficiency, high safety performance and long service life.

Description

Bubble breaking machine

Technical Field

The invention relates to the field of bubble breaking machines.

Background

When the production of the automobile foaming product is finished, due to the characteristics of the product in the production, a large amount of closed gas clusters exist in the foaming product after demoulding and foaming, so that the product is hardened in texture and lacks elasticity. Therefore, it is necessary to perform a foam breaking process on the foamed product so as to break open and communicate the foam pores inside the foamed product, thereby making the foamed product breathable and increasing the elasticity thereof, and at the same time, increasing the breathability of the product. The most common foam breaking mode in the prior art is physical foam breaking, which generally adopts a vacuumizing or extruding mode to break foam, while the existing device mostly adopts a single mode of vacuum foam breaking or rolling foam breaking, and as some automobile foaming products, such as a part of cushions, have metal frameworks, only the vacuum foam breaking mode can be adopted, and the foam breaking effect can be achieved. Thus, the existing equipment is not well adapted to the production of multiple foamed products simultaneously.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a bubble breaking machine which is wide in application range, high in working efficiency, high in safety performance and long in service life.

In order to solve the technical problems, the technical scheme of the invention is as follows: a bubble breaking machine is characterized in that: the device comprises a rack, at least two conveying lines and at least two foam breaking units, wherein the at least two conveying lines and the at least two foam breaking units are arranged on the rack, the foam breaking units and the conveying lines are arranged in a one-to-one correspondence manner, and the foam breaking units are divided into vacuum foam breaking units and rolling foam breaking units; the vacuum bubble breaking unit comprises a driving assembly, a movable support, a vacuum box guide pillar and a counterweight assembly, the driving assembly is used for driving the movable support to move up and down, the vacuum box is hoisted below the movable support through the vacuum box guide pillar and can move up and down relative to the movable support, the counterweight assembly comprises a counterweight block, a chain wheel and a counterweight block chain meshed on the chain wheel, the chain wheel is connected to the rack through a horizontally extending wheel shaft and is positioned above the vacuum box, one end of the counterweight block chain is fixed with the counterweight block, and the other end of the counterweight block chain is fixed with the vacuum box.

According to above technical scheme, drive assembly promotes gear motor, transmission shaft, steering gear and transmission lead screw including the vacuum chamber that connects gradually, the vertical extension of transmission lead screw, drive assembly still include with transmission lead screw complex screw-nut, screw-nut is fixed in on the movable support.

According to the technical scheme, the number of the vacuum box guide columns is at least four, the movable support is symmetrically provided with at least four first guide holes vertically penetrating through the movable support, the first guide holes are matched with the vacuum box guide columns in a one-to-one correspondence mode, the upper end of each vacuum box guide column penetrates through the corresponding first guide hole respectively, a limiting block is formed at the upper end of each vacuum box guide column, and the lower end of each vacuum box guide column is fixed on the vacuum box.

According to the technical scheme, the vacuum bubble breaking unit further comprises a vacuum box lifting chain, the upper end of the vacuum box lifting chain is connected with the movable support, the lower end of the vacuum box lifting chain is connected with the vacuum box, and the vacuum box lifting chain is in a loose state.

According to the technical scheme, the vacuum bubble breaking unit further comprises a movable support guide pillar, the movable support guide pillar extends vertically, the upper end and the lower end of the movable support guide pillar are fixed to the rack respectively, and a second guide hole matched with the movable support guide pillar is formed in the movable support.

According to the technical scheme, the vacuum bubble breaking unit further comprises a safety bolt, wherein the safety bolt comprises a bolt block, a bolt seat and a bolt body, the bolt block is formed at the top of the movable support and vertically extends upwards, a first bolt hole horizontally penetrating through the bolt block is formed in the bolt block, the bolt seat is formed in the position, corresponding to the bolt block, of the rack, a second bolt hole horizontally extending is formed in the bolt seat, and the bolt body can be simultaneously inserted into the first bolt hole and the second bolt hole to fix the movable support and the rack.

According to the technical scheme, the bolt seat is provided with an abdicating groove suitable for the insertion of the bolt block.

According to the technical scheme, the safety bolt further comprises a locking cylinder, a cylinder body of the locking cylinder is fixed with the bolt seat, and a piston rod of the locking cylinder is fixed with the bolt body.

According to above technical scheme, roll broken bubble unit and locate including lower extreme roller portion and the correspondence on locating the transfer chain that corresponds the upper end roller portion of lower extreme roller portion top, have the clearance that constitutes to roll the passageway between upper end roller portion and the lower extreme roller portion, roll the passageway and follow transfer chain direction of delivery reduces gradually.

According to the technical scheme, the rear end of the upper end roller part is also fixedly provided with a transition roller part, a gap forming a transition channel is formed between the transition roller part and the lower end roller part, and the transition channel is gradually increased along the conveying direction of the conveying line.

Compared with the prior art, the invention has the beneficial characteristics that: the foam breaking machine has the advantages that vacuum foam breaking and mechanical foam breaking are achieved simultaneously, the vacuum foam breaking unit is mainly used for breaking foam of a foaming product with a metal framework, the rolling foam breaking unit is mainly used for breaking foam of a foaming product without the metal framework, and the application range is wide; the vacuum bubble breaking unit and the rolling bubble breaking unit can be used simultaneously, so that the working efficiency is improved; the vacuum box is hoisted below the movable support through the vacuum box guide post and can move up and down relative to the movable support, so that the vacuum box is prevented from being suddenly compacted on the conveying line when moving downwards along with the movable support, and the service lives of the vacuum box and the conveying line are prolonged; the counter weight component can provide pulling force for the vacuum box, can slow down the speed of the downward movement of the vacuum box, can avoid the sudden quick falling of the vacuum box, and has high safety performance.

Drawings

FIG. 1 is a schematic structural diagram of a bubble breaker according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is a schematic view of the drive assembly installation in accordance with an embodiment of the present invention;

FIG. 5 is an enlarged view of the detail C of FIG. 4, with the vacuum box not shown;

FIG. 6 is an enlarged view of portion D of FIG. 4, with the vacuum box lifting chain and vacuum box guide post not shown;

FIG. 7 is a schematic view of the mounting of the guide post of the movable bracket according to the embodiment of the present invention;

FIG. 8 is an enlarged view of portion E of FIG. 7, with the vacuum box not shown;

FIG. 9 is an enlarged view of portion F of FIG. 7, with the vacuum box lifting chain not shown;

FIG. 10 is an enlarged view of a portion G of FIG. 7, wherein the vacuum box guide posts are not shown;

FIG. 11 is an enlarged view of the portion H of FIG. 7, with the vacuum box lifting chain and vacuum box guide post not shown;

FIG. 12 is a schematic view of a counterweight assembly installation in accordance with an embodiment of the present invention;

FIG. 13 is an enlarged view of portion I of FIG. 12, with the drive assembly and movable bracket not shown;

wherein: 1-frame, 2-driving component (201-vacuum box lifting gear motor, 202-transmission shaft, 203-steering gear, 204-transmission screw rod, 205-screw rod nut), 3-movable support (301-first guide hole, 302-second guide hole), 4-vacuum box (401-observation area), 5-vacuum box guide post, 6-counterweight component (601-counterweight block, 602-chain wheel, 603-counterweight block chain, 604-wheel shaft), 7-bearing seat, 8-bearing, 9-limiting block, 10-first guide sleeve, 11-mounting plate, 12-mounting seat, 13-vacuum box lifting chain, 14-movable support guide post, 15-second guide sleeve, 16-safety bolt (1601-bolt block (16011-first bolt hole), 1602-bolt seat (16021-second bolt hole, 16022-abdicating groove), 1603-bolt body, 1604-locking cylinder (16041-cylinder body, 16042-piston rod)), 17-sealing ring, 18-vacuum control valve, 19-vacuum pipeline, 20-guide baffle, 21-empty box inlet detection switch, 22-product in-place detection switch, 23-product limit position detection switch, 24-vacuum bubble breaking unit inlet section, 25-vacuum bubble breaking unit conveying section, 26-rolling bubble breaking unit inlet section, 27-rolling bubble breaking unit conveying section, 28-rolling bubble breaking unit outlet section, 29-lower end rolling wheel section, 30-upper end rolling wheel section, 31-rolling channel, 32-transition rolling wheel section, 33-transition channel, 34-position adjusting device (3401-fixing plate), 3402-movable plate), 35-pressure adjusting cylinder (3501-cylinder body, 3502-piston rod), 36-steel plate (3601-vacuum pumping channel).

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

Referring to fig. 1 to 13, a foam breaker according to an embodiment of the present invention is used for breaking foam of a foamed product. The bubble breaking machine comprises a rack 1, a conveying line and bubble breaking units, wherein the conveying line and the bubble breaking units are arranged on the rack 1 in a one-to-one correspondence mode, and the number of the conveying line and the bubble breaking units is at least two. The bubble breaking unit is divided into a vacuum bubble breaking unit and a rolling bubble breaking unit. The vacuum bubble breaking unit comprises a driving assembly 2, a movable support 3, a vacuum box 4, a vacuum box guide column 5 and a counterweight assembly 6. The driving component 2 is used for driving the movable support 3 to move up and down. The vacuum box 4 is hoisted below the movable support 3 through the vacuum box guide post 5, and the vacuum box 4 can move up and down along with the movable support 3 and can move up and down relative to the movable support 3. The counterweight assembly 6 comprises a counterweight 601, a sprocket 602, and a counterweight chain 603 engaged with the sprocket 602, the sprocket 602 is connected to the frame 1 through a horizontally extending axle 604, the sprocket 602 is located above the vacuum box 4, one end of the counterweight chain 603 is fixed to the counterweight 601, the other end of the counterweight chain 603 is fixed to the vacuum box 4, and under the action of the counterweight 601 and the sprocket 602, the counterweight chain 603 can provide an upward pulling force to the vacuum box 4.

Preferably, referring to fig. 1, fig. 2, fig. 4 and fig. 5, in order to make the up-and-down movement of the vacuum box 4 more stable and to facilitate the adjustment of the stroke of the vacuum box 4, the driving assembly 2 includes a vacuum box lifting speed reduction motor 201, a transmission shaft 202, a steering gear 203 and a transmission screw 204 which are connected in sequence, the transmission screw 204 extends vertically, the driving assembly 2 further includes a screw nut 205 which is matched with the transmission screw 204, and the screw nut 205 is fixed on the movable support 3. Specifically, in order to make the movement smoother, two steering gears 203 and two transmission screws 204 are respectively arranged symmetrically with respect to the vacuum box lifting gear motor 201, and two screw nuts 205 are symmetrically arranged on two sides of the movable bracket 3. Referring to fig. 1, 2, 4 and 5, in a most preferred embodiment, a vacuum box lifting gear motor 201, a transmission shaft 202 and a steering gear 203 are all arranged at the top end of a frame 1; bearing seats 7 are respectively arranged on the machine frame 1 at positions corresponding to the upper end and the lower end of the transmission screw rod 204, and bearings 8 are arranged at the upper end and the lower end of the transmission screw rod 204 and are arranged in the bearing seats 7.

Preferably, referring to fig. 1, fig. 2, fig. 4, fig. 7, fig. 9 and fig. 12, in order to make the vacuum box 4 move up and down more stably, at least four first guide holes 301 vertically penetrating through the movable bracket 3 are symmetrically formed on the movable bracket 3, the vacuum box guide posts 5 are in one-to-one corresponding fit with the first guide holes 301, at least four vacuum box guide posts 5 are symmetrically fixed on the top of the vacuum box 4, each vacuum box guide post 5 respectively penetrates through the corresponding first guide hole 301, a detachable stopper 9 is fixed on an upper end of each vacuum box guide post 5, a lower end of each vacuum box guide post 5 is fixed on the vacuum box 4, and the vacuum box guide posts 5 can move up and down relative to the movable bracket 3 within a range limited by the stopper 9 and the vacuum box 4. Specifically, in order to save cost while ensuring smooth movement, there are four vacuum box guide posts 5. Referring to fig. 1, 2, 4, 7, 9 and 12, in a most preferred embodiment, in order to make the up and down movement of the vacuum box guide post 5 more stable and avoid the abrasion of the first guide hole 301, and facilitate the replacement of parts, a first guide sleeve 10 is fixed in the first guide hole 301, and the upper end of the vacuum box guide post 5 is inserted into the first guide sleeve 10; in order to facilitate installation and ensure that the vacuum box guide post 5 is firmly fixed, the vacuum box 4 is provided with an installation plate 11 and an installation seat 12, the lower end of the vacuum box guide post 5 is inserted into the installation seat 12 and is fixed with the installation plate 11 through a threaded piece, and the installation plate 11, the installation seat 12 and the vacuum box 4 are fixed through threaded pieces.

Preferably, referring to fig. 1, 2, 4, 7, 10 and 12, the vacuum bubble breaking unit further includes a vacuum box lifting chain 13, an upper end of the vacuum box lifting chain 13 is fixed on the movable bracket 3, and a lower end of the vacuum box lifting chain 13 is fixed on the vacuum box 4; in a normal state, the vacuum box lifting chain 13 is in a slack state; when vacuum box guide pillar 5 fracture or vacuum box guide pillar 5 and movable support 3 unexpected break away from, vacuum box promotion chain 13 is straightened, plays the effect of connecting movable support 3 and vacuum box 4, carrying and drawing vacuum box 4, avoids vacuum box 4 to fall, and is safer, safer. Specifically, in order to save cost while ensuring the safety performance and safety performance, the vacuum box lifting chains 13 are four and symmetrically arranged.

Preferably, referring to fig. 1, fig. 2, fig. 7 and fig. 8, in order to make the up-and-down movement of the movable bracket 3 more stable and accurate, the vacuum bubble breaking unit further includes a movable bracket guide post 14, the movable bracket guide post 14 extends vertically, the upper end and the lower end of the movable bracket guide post 14 are respectively fixed to the frame 1, and the movable bracket 3 is provided with a second guide hole 302 matched with the movable bracket guide post 14. More preferably, referring to fig. 8, a second guide sleeve 15 sleeved outside the movable support guide post 14 is fixed in the second guide hole 302, and the second guide sleeve 15 can move up and down along the movable support guide post 14. Specifically, in order to save cost while ensuring smooth movement, the movable bracket guide posts 14 are four and are symmetrically arranged with respect to the movable bracket 3.

Preferably, referring to fig. 4, 7, 11 and 12, the vacuum bubble breaking unit further includes a safety bolt 16, where the safety bolt 16 includes a bolt block 1601, a bolt seat 1602 and a bolt body 1603, the bolt block 1601 is formed at the top of the movable support 3 and extends vertically upwards, a first bolt hole 16011 horizontally penetrating the bolt block 1601 is formed on the bolt block 1601, the bolt seat 1602 is fixed on the machine frame 1 at a position corresponding to the bolt block 1601, a second bolt hole 16021 horizontally extending is formed on the bolt seat 1602, and the bolt body 1603 can be simultaneously inserted into the first bolt hole 16011 and the second bolt hole 16021 to fix the movable support 3 and the machine frame 1. More preferably, in order to make the fitting precision of the latch 1601 and the latch 1602 higher, the latch 1602 has an offset groove 16022 suitable for the insertion of the latch 1601. More preferably, in order to effectively insert the bolt 1603 into the bolt block 1601 and the bolt seat 1602 and prevent the bolt 1603 from being accidentally removed, the safety bolt further comprises a locking cylinder 1604, a cylinder 16041 of the locking cylinder 1604 is fixed with the bolt seat 1602, and a piston rod 16042 of the locking cylinder 1604 is fixed with the bolt 1603.

Preferably, in order to ensure the vacuum effect, the lower end of the vacuum box 4 is provided with an opening, and the edge of the opening at the lower end of the vacuum box 4 is provided with a sealing ring 17.

Preferably, the vacuum box 4 is welded by steel plates and is not easy to deform.

More preferably, both sides of the vacuum box 4 are provided with observation regions 401 made of a transparent material so as to observe the changing state of the product when vacuum is applied. Specifically, the viewing area 401 is glass mounted on a vacuum box by flanges.

Specifically, referring to fig. 1, a vacuum control valve 18 is disposed on the top of the frame 1, and the vacuum control valve 18 and the vacuum box 4 are connected by a vacuum pipe 19. More preferably, the steel plate 36 is arranged at the bottom of the belt of the vacuum bubble breaking unit conveying section 25, the vacuumizing channel 3601 is formed in the steel plate 36, the vacuumizing control valve 18 is arranged at the bottom of the vacuumizing channel 3601, after the product is conveyed to the bottom of the vacuum box 4, the lower side of the belt of the vacuum bubble breaking unit conveying section 25 is vacuumized firstly, the product and the belt are sucked together, and the product is prevented from displacing in the vacuum box 4 when the vacuum box 4 is vacuumized.

Preferably, guide fences 20 are provided on both sides in the width direction of the conveying line.

Preferably, referring to fig. 1, a vacuum box inlet detection switch 21, a product in-place detection switch 22 and a product limit position detection switch 23 are disposed at one side of the conveying line corresponding to the vacuum box 4 in the width direction. The vacuum box inlet detection switch 21 can detect whether the product enters the lower part of the vacuum box 4, the product in-place detection switch 22 can detect whether the product is conveyed in place, and the limit position detection switch 23 can detect whether the product is conveyed to exceed the action range of the vacuum box 4, so that the product is prevented from being crushed. The empty box inlet detection switch 21, the product in-place detection switch 22 and the product limit position detection switch 23 are all photoelectric switches.

Preferably, in order to make the structure more compact, reduce the occupied area and improve the production and processing efficiency, please refer to fig. 1, the vacuum bubble breaking unit is located above the rolling bubble breaking unit. The conveying line corresponding to the vacuum bubble breaking unit comprises a vacuum bubble breaking unit inlet section 24 and a vacuum bubble breaking unit conveying section 25, and the vacuum bubble breaking unit inlet section 24 and the vacuum bubble breaking unit conveying section 25 are mutually independent and are integrally butted. The conveying line corresponding to the rolling and foam breaking unit comprises a rolling and foam breaking unit inlet section 26, a rolling and foam breaking unit conveying section 27 and a rolling and foam breaking unit outlet section 28, wherein the rolling and foam breaking unit inlet section 26, the rolling and foam breaking unit conveying section 27 and the rolling and foam breaking unit outlet section 28 are mutually independent and are sequentially butted into a whole. Wherein, the inlet section 26 of the crushing and foaming unit, the conveying section 27 of the crushing and foaming unit and the crushing and foaming unit are positioned at the lower end of the inlet section 24 of the vacuum crushing and foaming unit, and the outlet section 28 of the crushing and foaming unit is positioned at the lower end of the conveying section 25 of the vacuum crushing and foaming unit and the vacuum crushing and foaming unit.

Referring to fig. 1 and 3, in the embodiment of the present invention, the rolling and bubble breaking unit includes a lower roller portion 29 disposed on the corresponding conveyor line and an upper roller portion 30 disposed above the lower roller portion 29, a gap forming a rolling channel 31 is formed between the upper roller portion 30 and the lower roller portion 29, and the rolling channel 31 is gradually reduced along the conveying direction of the conveyor line to ensure the bubble breaking effect.

Preferably, referring to fig. 3, in order to adapt to different products, the front end of the upper roller part 30 is rotatably connected to the frame 1, and the upper roller part 30 can rotate up and down around the front end of the upper roller part 30 to adjust the rolling channel 31.

More preferably, last end rolling wheel portion 30 rear end still is fixed with transition rolling wheel portion 32, has the clearance that constitutes transition passageway 33 between transition rolling wheel portion 32 and the lower extreme rolling wheel portion 29, transition passageway 33 is followed conveying line direction of delivery increases gradually, can avoid the foaming product to come out in rolling passageway 31, because lose the upwarp that rolling pressure leads to.

Referring to fig. 3, in a preferred embodiment, the crushing and breaking unit further includes a position adjusting device 34 and a pressure adjusting cylinder 35, and the pressure adjusting cylinder 35 is connected to the frame 1 through the position adjusting device 34. The position adjusting device 34 comprises a fixing plate 3401 and a movable plate 3402 arranged on the fixing plate 3401, the fixing plate 3401 vertically extends and is fixed on the rack 1, and the movable plate 3402 is detachably connected with the fixing plate 3401 through a screw. The cylinder 3501 of the pressure adjusting cylinder 35 is rotatably connected to the movable plate 3402, and the piston rod 3502 of the pressure adjusting cylinder 35 is rotatably connected to the rear end of the upper roller part 30. The vertical height of the cylinder body 3501 of the pressure adjusting cylinder 35 is adjusted by adjusting the vertical height of the movable plate 3402 on the fixed plate 3401, so that the use is more flexible, and the extrusion height of the product can be adjusted.

In the vacuum bubble breaking unit of the embodiment of the invention, a vacuum box lifting speed reducing motor 201 drives a movable support 3 provided with a screw nut 205 to move up and down sequentially through a transmission shaft 202, a steering gear 203 and a transmission screw 204. Under the action of the vacuum box guide post 5, the vacuum box 4 moves up and down along with the movable bracket 3 and can move up and down relative to the movable bracket 3. Provide ascending pulling force for vacuum box 4 through counter weight subassembly 6, can slow down vacuum box 4 downstream's speed, can avoid vacuum box 4 rapid drop suddenly. When vacuum box guide pillar 5 fracture or vacuum box guide pillar 5 and movable support 3 unexpected break away from, vacuum box promotion chain 13 is straightened, plays the effect of connecting movable support 3 and vacuum box 4, carrying and drawing vacuum box 4, avoids vacuum box 4 to fall, and is safer, safer. In the rolling and foam breaking unit, a transition roller part 32 is fixed at the rear end of an upper roller part 30, so that upwarping caused by loss of rolling pressure when a foamed product comes out from a rolling channel 31 can be avoided.

The above description is provided for the purpose of describing the present invention in more detail, and it should not be construed that the present invention is limited to the description, and it will be apparent to those skilled in the art that various modifications and substitutions can be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a broken bubble machine which characterized in that: the device comprises a rack, at least two conveying lines and at least two foam breaking units, wherein the at least two conveying lines and the at least two foam breaking units are arranged on the rack, the foam breaking units and the conveying lines are arranged in a one-to-one correspondence manner, and the foam breaking units are divided into vacuum foam breaking units and rolling foam breaking units; the vacuum bubble breaking unit comprises a driving assembly, a movable support, a vacuum box guide pillar and a counterweight assembly, the driving assembly is used for driving the movable support to move up and down, the vacuum box is hoisted below the movable support through the vacuum box guide pillar and can move up and down relative to the movable support, the counterweight assembly comprises a counterweight block, a chain wheel and a counterweight block chain meshed on the chain wheel, the chain wheel is connected to the rack through a horizontally extending wheel shaft and is positioned above the vacuum box, one end of the counterweight block chain is fixed with the counterweight block, and the other end of the counterweight block chain is fixed with the vacuum box.

2. The bubble breaking machine according to claim 1, characterized in that: the driving assembly comprises a vacuum box lifting speed reduction motor, a transmission shaft, a steering gear and a transmission screw rod which are sequentially connected, the transmission screw rod vertically extends, the driving assembly further comprises a screw nut matched with the transmission screw rod, and the screw nut is fixed on the movable support.

3. The bubble breaking machine according to claim 1, characterized in that: the vacuum box guide posts are at least four, the movable support is symmetrically provided with at least four first guide holes vertically penetrating through the movable support, the first guide holes are matched with the vacuum box guide posts in a one-to-one correspondence mode, the upper end of each vacuum box guide post respectively penetrates through the corresponding first guide hole, a limiting block is formed at the upper end of each vacuum box guide post, and the lower end of each vacuum box guide post is fixed on the vacuum box.

4. The bubble breaking machine according to claim 1, characterized in that: the vacuum bubble breaking unit further comprises a vacuum box lifting chain, the upper end of the vacuum box lifting chain is connected with the movable support, the lower end of the vacuum box lifting chain is connected with the vacuum box, and the vacuum box lifting chain is in a loose state.

5. The bubble breaking machine according to claim 1, characterized in that: the vacuum bubble breaking unit further comprises a movable support guide pillar, the movable support guide pillar extends vertically, the upper end and the lower end of the movable support guide pillar are fixed to the rack respectively, and a second guide hole matched with the movable support guide pillar is formed in the movable support.

6. The bubble breaking machine according to claim 1, characterized in that: the vacuum bubble breaking unit further comprises a safety bolt, wherein the safety bolt comprises a bolt block, a bolt seat and a bolt body, the bolt block is formed at the top of the movable support and vertically extends upwards, a first bolt hole horizontally penetrating through the bolt block is formed in the bolt block, the bolt seat is formed in the position, corresponding to the bolt block, of the rack, a second bolt hole horizontally extending is formed in the bolt seat, and the bolt body can be simultaneously inserted into the first bolt hole and the second bolt hole to fix the movable support and the rack.

7. The bubble breaking machine according to claim 6, characterized in that: the bolt seat is provided with an abdicating groove suitable for the insertion of the bolt block.

8. The bubble breaking machine according to claim 6, characterized in that: the safety bolt further comprises a locking cylinder, a cylinder body of the locking cylinder is fixed with the bolt seat, and a piston rod of the locking cylinder is fixed with the bolt body.

9. The bubble breaking machine according to claim 1, characterized in that: roll broken bubble unit including locating the lower extreme roller portion on the transfer chain that corresponds and correspond and locate the upper end roller portion of lower extreme roller portion top, have between upper end roller portion and the lower extreme roller portion and constitute the clearance that rolls the passageway, roll the passageway and follow transfer chain direction of delivery reduces gradually.

10. The bubble breaking machine according to claim 9, characterized in that: the rear end of the upper end roller part is also fixedly provided with a transition roller part, a gap forming a transition channel is formed between the transition roller part and the lower end roller part, and the transition channel is gradually increased along the conveying direction of the conveying line.