阅读说明：本技术 电池盖板氦检自动化设备 (Automatic equipment for helium detection of battery cover plate ) 是由 夏朝阳 姜红亮 仝浩杰 崔帅山 罗晓兵 黄福军 于 2021-08-26 设计创作，主要内容包括：本发明揭示了电池盖板氦检自动化设备,包括进料单元、出料单元、氦检单元,进料单元包括进料输送机构、入料旋转机构、物料移载机构,出料单元包括卸料输送机构和NG排离输送机构,氦检单元包括物料周转机构及若干氦检工位,氦检工位包括氦检顶舱和氦检底座,氦检顶舱具备顶压密封室和氦气气源,氦检底座包括支承密封室、氦气质谱检测器和抽真空检测器。本发明满足电池盖板气密性检测需求,自动化程度较高,易于构建在全自动化产线中,运行高效流畅且气检可靠稳定。采用抽真空检测与氦检结合的方式,满足初筛检测排离需求,降低了氦检成本,同时减少了复位运转行程,提高了检测效率。具备进料转向与出料翻转功能,满足自动化产线运转流畅性需求。(The invention discloses automatic equipment for helium detection of a battery cover plate, which comprises a feeding unit, a discharging unit and a helium detection unit, wherein the feeding unit comprises a feeding conveying mechanism, a feeding rotating mechanism and a material transferring mechanism, the discharging unit comprises a discharging conveying mechanism and an NG discharging conveying mechanism, the helium detection unit comprises a material transferring mechanism and a plurality of helium detection stations, each helium detection station comprises a helium detection top cabin and a helium detection base, each helium detection top cabin is provided with a top pressure sealing chamber and a helium gas source, and each helium detection base comprises a supporting sealing chamber, a helium mass spectrum detector and a vacuumizing detector. The invention meets the requirement of detecting the air tightness of the battery cover plate, has higher automation degree, is easy to construct in a full-automatic production line, has high-efficiency and smooth operation and reliable and stable gas detection. The mode that evacuation detection and helium examine to combine is adopted, satisfies the primary screen and detects the demand of keeping away, has reduced the helium and has examined the cost, has reduced the operation stroke that resets simultaneously, has improved detection efficiency. Possess the feeding and turn to and ejection of compact upset function, satisfy the operation smoothness nature demand of automation line.)

1. Automatic equipment is examined to battery apron helium which characterized in that:

comprises a feeding unit, a discharging unit and a helium detecting unit positioned between the feeding unit and the discharging unit,

the feeding unit comprises a feeding conveying mechanism, a feeding rotating mechanism and a material transferring mechanism positioned between the feeding conveying mechanism and the feeding rotating mechanism,

the discharging unit comprises a discharging conveying mechanism and an NG discharging conveying mechanism,

the helium detection unit comprises a plurality of helium detection stations and a material turnover mechanism for switching among the helium detection stations, the feeding unit and the discharging unit,

the helium detection station comprises a helium detection top cabin with lifting displacement and a helium detection base with horizontal linear displacement, the helium detection top cabin is provided with a top pressure sealing chamber and a helium gas source for supplying gas to the top pressure sealing chamber, and the helium detection base comprises a supporting sealing chamber, a helium mass spectrum detector connected with the supporting sealing chamber and a vacuumizing detector.

2. The automated battery cover plate helium testing equipment of claim 1, wherein:

the helium detection station comprises a linear rail carrying seat perpendicular to the feeding conveying mechanism, two helium detection bases capable of realizing tidal switching displacement are arranged on the linear rail carrying seat, and the helium detection bases are matched with the helium detection top cabin in a relatively mode.

3. The automated battery cover plate helium testing equipment of claim 2, wherein:

the material turnover mechanism comprises a linear displacement carrier and a linear displacement carrier seat, wherein the linear displacement carrier is bridged between the discharging unit and the feeding unit, the linear displacement carrier seat is arranged on the linear displacement carrier seat, and a material picking part with lifting displacement is arranged on the linear displacement carrier seat.

4. The automated battery cover plate helium testing equipment of claim 3, wherein:

and the linear displacement carrier is provided with two linear displacement carrier seats.

5. The automated battery cover plate helium testing equipment of claim 2, wherein:

the feeding conveying mechanism comprises a feeding circulating material belt, and a material guide groove is formed in the discharging end of the feeding circulating material belt;

the feeding rotating mechanism comprises a material carrying seat with rotary displacement, and two loading cavity grooves which are vertically arranged are formed in the material carrying seat;

the material transfer mechanism is used for switching the displacement between the material guide groove and the material carrying seat.

6. The automated battery cover plate helium testing equipment of claim 5, wherein:

a secondary positioning tool is arranged between the discharge end of the feeding circulating material belt and the feeding rotating mechanism,

the material moves and carries the mechanism including being used for the material guide way with the first portion of moving that moves that shifts between the secondary location frock moves and is used for the secondary location frock with carry the second portion of moving that moves that shifts between the material seat.

7. The automated battery cover plate helium testing equipment of claim 5, wherein:

the discharge end top in feeding circulation material area is equipped with sweeps a yard detection mechanism.

8. The automated battery cover plate helium testing equipment of claim 1, wherein:

the discharging and conveying mechanism comprises a turnover carrying seat and a discharging and conveying circulating belt, the turnover carrying seat comprises a turnover body with 180-degree turnover displacement, and a negative pressure adsorption carrying groove is formed in the turnover body.

9. The automated battery cover plate helium testing equipment of claim 8, wherein:

the NG discharging and conveying mechanism comprises an NG discharging and circulating material belt which is perpendicular to the discharging and conveying circulating belt.

10. The automated battery cover plate helium testing equipment of claim 9, wherein:

and the NG discharging circulating material belt is provided with a limiting support rib.

Technical Field

The invention relates to automatic equipment for helium detection of a battery cover plate, and belongs to the technical field of airtightness detection.

Background

The power battery cover plate is composed of a cover plate main body and a welding explosion-proof valve, a plurality of gas detection areas such as the explosion-proof valve exist, and the gas tightness of the gas detection areas needs to be detected, so that the gas tightness stability of the power battery cover plate is ensured.

At present, the detection modes of the battery cover plate are mainly two types: one is a device of general oil pressure or water pressure to detect the breaking pressure and the bursting pressure of the battery cover plate, and the method relies on a pressure gauge to read the numerical values of the breaking pressure and the bursting pressure; alternatively, the detection is performed by an air pressure device which pressurizes the sealed space of the battery cover plate and detects the open circuit pressure and burst pressure of the cover plate through a circuit and a sensor.

The chinese patent publication No. CN105651445A discloses a battery cover plate detection device and a detection method thereof, which adopt designs such as a gas detection chamber and a pressure sensor, thereby meeting the requirement of detecting the gas tightness of a battery cover plate, but adopt a pressure detection mode, so that the detection sensitivity is low, and the requirement of detecting the high gas tightness cannot be met.

To this case, the chinese utility model of grant bulletin No. CN206563639U discloses a power battery apron helium gas leak detector, it can realize the batched of battery apron and detect, and examine through helium and realize the gas tightness and detect, helium is examined and is supplied with through the helium of certain time constant pressure promptly, carry out helium mass spectrum at the other end and detect, thereby satisfy high accuracy gas tightness and detect the demand, there is the multistage in the gas tightness in battery apron gas detection district, adopt one end to lead to the detection of helium can cause a large amount of losses of helium, it is clear that specifically speaking says, when there is great leakage volume in battery apron gas detection district, it can be great to lead to helium volume, the detection cost has undoubtedly been increased.

The helium detection equipment is provided with a plurality of stations, generally, the helium detection stations are long in operation time, the relative working time of the stations is greatly different, the requirement for coordination of the stations is difficult to meet, and the detection efficiency is greatly influenced.

In addition, the degree of automation of traditional power battery cover plate helium gas detection equipment is lower, and difficult the structure is in the automation line of battery cover plate, and general battery cover plate has following process, and battery cover plate guide pin equipment, battery cover plate explosion-proof valve welding, battery cover plate gas tightness detect, battery cover plate rear end equipment etc. need intervene gas detection equipment after the battery cover plate explosion-proof valve shaping, and traditional gas detection equipment is independent detection, has undoubtedly increased material turnover cost, and work efficiency receives great restriction simultaneously.

Disclosure of Invention

The invention aims to solve the defects of the prior art, and provides the automatic battery cover plate helium testing equipment aiming at the problems that the traditional helium testing equipment is low in efficiency and cannot meet the requirements of an automatic production line.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the battery cover plate helium detection automation equipment comprises a feeding unit, a discharging unit and a helium detection unit positioned between the feeding unit and the discharging unit,

the feeding unit comprises a feeding conveying mechanism, a feeding rotating mechanism and a material transferring mechanism positioned between the feeding conveying mechanism and the feeding rotating mechanism,

the discharging unit comprises a discharging conveying mechanism and an NG discharging conveying mechanism,

the helium detection unit comprises a plurality of helium detection stations and a material turnover mechanism for switching among the helium detection stations, the feeding unit and the discharging unit,

the helium detection station comprises a helium detection top cabin with lifting displacement and a helium detection base with horizontal linear displacement, the helium detection top cabin is provided with a top pressure sealing chamber and a helium gas source for supplying gas to the top pressure sealing chamber, and the helium detection base comprises a supporting sealing chamber, a helium mass spectrum detector connected with the supporting sealing chamber and a vacuumizing detector.

Preferably, the helium detecting station comprises a linear rail carrier seat perpendicular to the feeding and conveying mechanism, two helium detecting bases capable of realizing tidal switching displacement are arranged on the linear rail carrier seat, and any helium detecting base is provided with the helium detecting top cabin which is matched with the helium detecting base in a relative mode.

Preferably, the material turnover mechanism comprises a linear displacement carrier bridged between the discharging unit and the feeding unit, and a linear displacement carrier seat arranged on the linear displacement carrier, wherein a material picking part with lifting displacement is arranged on the linear displacement carrier seat.

Preferably, two linear displacement carrier seats are arranged on the linear displacement carrier.

Preferably, the feeding conveying mechanism comprises a feeding circulating material belt, and a material guide groove is formed in the discharging end of the feeding circulating material belt;

the feeding rotating mechanism comprises a material carrying seat with rotary displacement, and two loading cavity grooves which are vertically arranged are formed in the material carrying seat;

the material transfer mechanism is used for switching the displacement between the material guide groove and the material carrying seat.

Preferably, a secondary positioning tool is arranged between the discharge end of the feeding circulating material belt and the feeding rotating mechanism,

the material moves and carries the mechanism including being used for the material guide way with the first portion of moving that moves that shifts between the secondary location frock moves and is used for the secondary location frock with carry the second portion of moving that moves that shifts between the material seat.

Preferably, the discharge end top in feeding circulation material area is equipped with sweeps a yard detection mechanism.

Preferably, the unloading conveying mechanism comprises an overturning carrying seat and an unloading conveying circulating belt, the overturning carrying seat comprises an overturning body with 180-degree overturning displacement, and a negative pressure adsorption carrying groove is formed in the overturning body.

Preferably, the NG discharging and conveying mechanism comprises an NG discharging and circulating belt which is arranged perpendicular to the discharging and conveying circulating belt.

Preferably, the NG discharging circulating material belt is provided with a limiting support rib.

The invention has the following beneficial effects:

1. satisfy battery apron gas tightness detection demand, degree of automation is higher, easily founds in battery equipment full automation line, moves high-efficient smooth and gas detection reliable and stable.

2. The mode that evacuation detection and helium examine to combine together is adopted, satisfies the primary screen and detects the demand of keeping away, has reduced the helium and has examined the cost, has reduced the operation stroke that resets simultaneously, has improved detection efficiency.

3. Possess the feeding and turn to and ejection of compact upset function, satisfy the operation smoothness nature demand of automation line.

4. The helium detection unit is compact in overall design structure and high in space utilization rate, and is particularly suitable for the speed regulation matching requirement of an overall production line, so that the full-automatic production line is smooth in operation and high in efficiency.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of an automatic helium testing device for a battery cover plate according to the invention.

FIG. 2 is a schematic view of another automated helium testing apparatus for a battery cover according to the present invention.

FIG. 3 is a schematic structural diagram of a helium testing station in the automatic helium testing equipment for the battery cover plate.

FIG. 4 is a schematic structural diagram of a material transfer mechanism in the automatic helium testing equipment for the battery cover plate.

FIG. 5 is a schematic structural diagram of a feeding and conveying mechanism in the automatic helium testing equipment for the battery cover plate.

FIG. 6 is a schematic structural diagram of a feeding rotating mechanism in the automatic helium testing equipment for the battery cover plate according to the invention.

Fig. 7 is a schematic structural diagram of a material transfer mechanism in the automatic helium testing equipment for the battery cover plate according to the invention.

FIG. 8 is a schematic structural diagram of a turnover carrier in the automatic helium testing equipment for the battery cover plate of the present invention.

FIG. 9 is a schematic structural diagram of a discharge conveying circulating belt in the automatic helium testing equipment for the battery cover plate.

FIG. 10 is a schematic structural diagram of NG discharging from a circulating material belt in the automatic helium testing equipment for the battery cover plate according to the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The invention provides a battery cover plate helium detection automation device, which comprises a feeding unit, a discharging unit and a helium detection unit positioned between the feeding unit and the discharging unit, as shown in figures 1 to 10.

The feeding unit comprises a feeding conveying mechanism 1, a feeding rotating mechanism 2 and a material transferring mechanism 3 located between the feeding conveying mechanism 1 and the feeding rotating mechanism 2.

The discharging unit comprises a discharging conveying mechanism 4 and an NG discharging conveying mechanism 5.

The helium detection unit comprises a plurality of helium detection stations 6 and a material turnover mechanism 7 for switching among the helium detection stations, the feeding unit and the discharging unit.

The helium detecting station 6 comprises a helium detecting top cabin 61 with lifting displacement and a helium detecting base 62 with horizontal linear displacement, the helium detecting top cabin 61 is provided with a top pressure sealing chamber 611 and a helium gas source 612 for supplying gas to the top pressure sealing chamber, and the helium detecting base 62 comprises a supporting sealing chamber 621, a helium mass spectrum detector 622 and a vacuumizing detector 623, wherein the helium mass spectrum detector is connected with the supporting sealing chamber.

The specific implementation process and principle description are as follows:

in the helium test air tightness detection process, firstly, the feeding and conveying mechanism 1 is used for supplying the automatic battery cover plate, the feeding and conveying mechanism 1 is communicated with an automatic battery cover plate assembly production line, and the discharging is supplied along the length direction of a product.

Aiming at the supply mode, the feeding unit is designed, the automatic conveying of the battery cover plate 100 is carried out through the feeding conveying mechanism 1, the battery cover plate is picked up and placed on the feeding rotating mechanism 2 through the material transferring mechanism 7, the horizontal rotating direction of the battery cover plate 100 is adjusted through the feeding rotating mechanism 2, and the requirement of matching with the testing position degree of the rear-end helium detection station 6 is met.

In the helium detection process, the requirement of dislocation and separation between the helium detection base 62 and the helium detection top cabin 61 is met through horizontal limiting displacement of the helium detection base 62, at the moment, the supporting sealing chamber 621 is exposed, and the material transfer mechanism 7 is convenient for picking up and placing the battery cover plate 100 on the feeding rotating mechanism 2 into the supporting sealing chamber 621.

When the battery cover plate 100 is placed into the supporting sealing chamber 621, the battery cover plate 100 is in sealing abutting joint with the supporting sealing chamber, the vacuumizing detector 623 performs vacuumizing detection at the moment, when the vacuumizing detection is unqualified, the helium detection base 62 is not reset, the material turnover mechanism 7 directly picks up the helium to the NG discharging and conveying mechanism 5, when the vacuumizing detection is qualified, the helium detection base 62 is reset to be vertically opposite to the helium detection top cabin 61, at the moment, the helium detection top cabin 61 is vertically pressed downwards to enable the top pressing sealing chamber 611 to be in sealing abutting joint with the top of the battery cover plate 100, helium is supplied at a certain pressure and for a certain time through the helium gas source 612, and the helium mass spectrometer 622 connected with the supporting sealing chamber performs gas detection, so that the requirement on gas detection precision is met.

It should be noted that, the preliminary screening is performed through the vacuumizing detection, so that the helium gas flow at the rear end is reduced on the one hand, the resetting stroke is not needed on the other hand, and the operation efficiency is improved. Meanwhile, the vacuumizing detection can vacuumize, exhaust and exhaust the supporting sealing chamber 621 which is detected in the front, so that helium gas is effectively prevented from remaining, and the detection precision is improved.

After helium detection is finished, NG products and good products are respectively transferred by the material transfer mechanism 7, and the discharging conveying mechanism 4 and the NG discharging conveying mechanism 5 are respectively and automatically discharged.

The battery cover plate helium detection automation equipment is easy to build in a full-automatic production line, a certain amount of synchronous online detection capacity load is realized by utilizing the helium detection stations 6 of the helium detection unit, the coordination requirement of a feeding end and a discharging end is met, the integral speed distribution of the full-automatic production line is realized, and the stable and efficient operation of the production line is ensured.

In one embodiment, as shown in fig. 3, the helium testing station 6 comprises a linear rail carrier 60 arranged perpendicular to the feeding conveyor 1, and two helium testing bases 62 with tidal switching displacement are arranged on the linear rail carrier, and any helium testing base is provided with a helium testing top cabin 61 matched with the helium testing base.

The linear rail carrier seat 60 which is perpendicular to the feeding conveying mechanism 1 is adopted, the requirement for steering adaptation of the feeding battery cover plate is met, the whole volume of the helium detection unit is reduced, the single helium detection station 6 is provided with double detection positions, the tide type matching is more efficient, the synchronous detection amount is increased in a limited space, the whole detection efficiency is improved, and the operation is efficient and smooth.

As shown in fig. 4, the material circulation mechanism 7 includes a linear displacement carriage 71 bridged between the discharging unit and the feeding unit, and a linear displacement carrier 72 provided on the linear displacement carriage, and the linear displacement carrier is provided with a material pickup portion 73 having a lifting displacement. The linear displacement carriage 72 is provided with two linear displacement carriages 72.

The specific implementation process and principle description are as follows:

the helium detecting base 62 with linear displacement is adopted, the feeding and discharging positions of the helium detecting stations, the feeding position of the feeding unit and the discharging position of the discharging unit are in the same linear state, the flexible switching requirement among the stations can be met by utilizing the linear displacement carrier seats 72, in one specific embodiment, the design of two linear displacement carrier seats 72 is adopted, the feeding function and the discharging function can be respectively borne, the turnover efficiency is improved, and the turnover equipment cost is also controlled.

In one embodiment, as shown in fig. 5 and fig. 6, the feeding conveying mechanism 1 includes a feeding circulating material belt 11, a material guiding slot 12 is disposed at a discharging end of the feeding circulating material belt 11, the feeding rotating mechanism 2 includes a material carrying seat 20 with rotational displacement, two vertically disposed cavity accommodating slots 21 are disposed on the material carrying seat 20, and the material transferring mechanism 3 is configured to shift between the material guiding slot and the material carrying seat 20.

Specifically, the automatic feeding of the battery cover plate 100 is performed through the feeding circulating belt 11, in order to improve the feeding accuracy, the design of the material guide groove 12 is adopted to ensure that the feeding position degree is adjusted, and the picking and transferring requirements of the material transfer mechanism 3 are met, and the accommodating cavity 21 is the steering adjustment requirement for loading the battery cover plate 100, and the matching requirement of the rear end detection position is met.

When turning to, carry out the pickup of battery apron 100 at the discharge end that the feeding circulated material area 11 by material moves the mechanism 3, pick up the back and carry in one of them holds and carry the chamber groove 21, through the rotatory turnover to carrying material seat 20 make and hold present holding and carry chamber groove 21 and switch the displacement, another holds and carries chamber groove 21 and can carry on the material and carry, so once realize the continuous supply of four products, satisfy the disposable carrying capacity of a helium detection station.

Certainly, in order to improve the efficiency, a design that four accommodating cavity grooves 21 are circumferentially and uniformly distributed can be adopted, so that the continuous rotary feeding and discharging matching can be realized.

In one embodiment, as shown in fig. 7, a secondary positioning tool is provided between the discharging end of the feeding circulating material belt and the feeding rotating mechanism, and the material transferring mechanism 3 includes a first transferring part 31 for displacing between the material guiding groove and the secondary positioning tool and a second transferring part 32 for displacing between the secondary positioning tool and the containing cavity groove.

Specifically, the reference numerals of the secondary positioning tool are omitted in the drawings, and the secondary positioning tool is used for performing secondary positioning after the first transfer part 31 picks up the battery cover plate, and a vibration or clamping guide correction mode can be adopted, so that the relative position accuracy of the battery cover plate is improved, and the reliable and stable rear end detection alignment is ensured.

In one embodiment, the top of the discharging end of the feeding circulating material belt 1 is provided with a code scanning detection mechanism 8.

There is independent sign on the battery apron, and this sign is used for the rear end to assemble and the product corresponds the mark, can carry out the sign scanning discernment of current battery apron 100 through sweeping yard detection mechanism 8, and when unable discernment or discernment are wrong, directly unload by material turnover mechanism 7, certainly, when adopting bilinear displacement to carry seat 72 design, can examine base 62 through idle helium and unload the turnover, satisfy transportation operation high efficiency demand.

In one embodiment, as shown in fig. 8 and 9, the discharging conveying mechanism 4 comprises an overturning carrier seat 41 and a discharging conveying circulating belt 42, the overturning carrier seat 41 comprises an overturning body 411 with 180 ° overturning displacement, and a negative pressure adsorption carrier groove 412 is arranged on the overturning body.

Specifically, after the battery cover plate 100 is detected, subsequent assembly production needs to be performed, manual material turnover needs to be performed in the traditional production operation, and position degree adjustment needs to be performed in the rear end feeding process.

For the situation, the design of the overturning carrier seat 41 is adopted in the scheme, the negative pressure adsorption carrier groove 412 is used for carrying the currently-discharged battery cover plate 100 in an adsorption mode, the overturning body 411 is used for releasing negative pressure after overturning, so that the battery cover plate 100 is overturned and then discharged to the discharging conveying circulating belt 42 for outputting, and during discharging, two frame walls of the battery cover plate 100 are bridged on two sides of the discharging conveying circulating belt 42 to meet the conveying requirements of the discharging conveying circulating belt.

In one embodiment, as shown in fig. 10, the NG discharging conveyor mechanism 5 includes a NG discharging endless belt 51 disposed perpendicular to the discharging conveying endless belt. The NG discharging circulating material belt 51 is provided with a limiting support rib 52.

That is, the running direction of the NG discharging circulating material belt 51 is consistent with the carrying direction of the detection material, and in order to improve the conveying stability, the limiting support ribs 52 are designed to ensure that the NG products can be effectively output.

It should be noted that this helium detection automation equipment can set up and detect categorised mark or a plurality of different categorised NG and arrange from circulation material area 51, so can realize sweeping sign indicating number defective products, negative pressure gas detection defective products, helium detection defective products's differentiation classification.

In an embodiment, a piercing mechanism for piercing a battery cover plate may be designed on the NG discharge circulation material belt 51 to pierce the negative pressure gas detection defective product and the helium detection defective product, so as to prevent the occurrence of a situation that the defective product is left over to cause the rear end assembly product to be unqualified.

Through the above description, the invention can meet the requirement of detecting the air tightness of the battery cover plate, has higher automation degree, is easy to construct in a full-automatic production line of battery assembly, has high-efficiency and smooth operation and reliable and stable gas detection. The mode that evacuation detection and helium examine to combine together is adopted, satisfies the primary screen and detects the demand of keeping away, has reduced the helium and has examined the cost, has reduced the operation stroke that resets simultaneously, has improved detection efficiency. Possess the feeding and turn to and ejection of compact upset function, satisfy the operation smoothness nature demand of automation line. The helium detection unit is compact in overall design structure and high in space utilization rate, and is particularly suitable for the speed regulation matching requirement of an overall production line, so that the full-automatic production line is smooth in operation and high in efficiency.

The terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing or implying a particular order or sequence.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.