CN209338080U

CN209338080U - A kind of vacuum Cover whirling Machine of the replaceable threeway with fixed structure

Info

Publication number: CN209338080U
Application number: CN201821973793.5U
Authority: CN
Inventors: 吴磊
Original assignee: Sichuan Weishiduo Technology Co Ltd
Current assignee: Sichuan Weishiduo Technology Co Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2019-09-03
Anticipated expiration: 2028-11-28

Abstract

The vacuum Cover whirling Machine for the replaceable threeway with fixed structure that the utility model discloses a kind of, it is related to vacuum Cover whirling Machine technical field, based on specific, positioning plate and fixed frame, the lower inner of the main body is equipped with support, it is fitting connection between the support and main body, vacuum pump is installed, and positioning plate is located at the centre of main body, is placed with the first hydraulic stem above the main body on the right side of the positioning plate.This kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure, pass through the setting of support, reinforcing support can be carried out from the bottom of main body, connecting rod is provided on the inside of support, connecting rod is supported support by the way of arranged in a crossed manner, be conducive to reinforce the stability of support, the inside of support is equipped with air bag, pass through the setting of air bag, support can be made to have the function of damping, avoid pressure excessive, cause support impaired, in addition the inside of air bag is provided with the first spring simultaneously, and the first spring can be such that compressed air bag resets rapidly.

Description

A kind of vacuum Cover whirling Machine of the replaceable threeway with fixed structure

Technical field

The utility model relates to vacuum Cover whirling Machine technical field, specially a kind of replaceable threeway with fixed structure Vacuum Cover whirling Machine.

Background technique

The general meaning of vacuum Cover whirling Machine is the vacuum spiral cover packaging facilities of the tinplate unscrewing lid on vial, vial It has been nowadays very universal material, many liquid products are all packed with vial, since vial is being packed It is upper more special, need relatively stiff device to be packed, otherwise it is impossible to ensure that the leakproofness of glass bottle packaging.

As current people's lives level is continuously improved, people require to be increasingly stringenter for the commodity on market, from It can be embodied in the packaging of product, the packaging matter with product can be improved in one of important process of the Cover whirling Machine as product packaging Amount, but general vacuum Cover whirling Machine working efficiency when being packed is not high, can not carry out multiple groups while pack, in addition, Threeway part therein can not carry out inspection replacement, vaccum bad problem when be easy to causeing pumping.

A kind of vacuum Cover whirling Machine disclosed in Chinese utility model patent ublic specification of application CN206940380U, should Kind vacuum Cover whirling Machine, although structure is simple, the function that can be combined spiral cover and vacuumize can also save manpower, guarantee That packs is vaccum, and still, this kind of vacuum Cover whirling Machine has efficiency insufficient, can not replace to threeway, without fixed knot Structure, the disadvantage of stability deficiency.

Summary of the invention

In view of the deficiencies of the prior art, the utility model provides a kind of vacuum of replaceable threeway with fixed structure Cover whirling Machine, it is not high to solve general vacuum Cover whirling Machine working efficiency when being packed mentioned above in the background art, no It is able to carry out multiple groups while packing, in addition, threeway part therein can not carry out inspection replacement, vacuum when be easy to causeing pumping The bad problem of property.

To achieve the above object, the utility model provides the following technical solutions: a kind of replaceable three with fixed structure Logical vacuum Cover whirling Machine, including main body, positioning plate and fixed frame, the lower inner of the main body are equipped with support, the support To be fitting to connection between main body, vacuum pump is installed on the right side of the positioning plate, and positioning plate is located at the centre of main body, it is described The first hydraulic stem is placed with above main body, and the bottom of the first hydraulic stem is connected with pressing plate, the pressing plate and the first hydraulic stem Between be sticky connection.

Optionally, be connected with connecting rod on the inside of the support, and the inside of support is placed with air bag, the connecting rod with To be fixedly welded between support, the positioned inside of the air bag has the first spring, be between the air bag and support it is Nian Jie, it is described The vertical centerline of air bag and the vertical centerline of the first spring overlap, and the first spring is passed through in the inner vertical of air bag It wears.

Optionally, tracheae is connected on the inside of the vacuum pump, and tracheae is connected with connecting tube far from one end of vacuum pump, To be fitting to connection between the tracheae and vacuum pump, the connecting tube is provided with exhaust tube, the connection far from one end of tracheae To be fitting to connection between pipe and exhaust tube, the vacuum pump between tracheae and connecting tube by being connected with each other, and connecting tube is outer Portion's shape is " L " type.

Optionally, it is respectively and fixedly provided with pulley at left and right sides of the pressing plate, and is provided with slideway on the outside of pulley, the pulley To be fixedly welded between pressing plate, it is welding between the slideway and main body, cooperates and constitute between the pulley and slideway Slide construction, and the vertical centerline between pulley between slideway about pressing plate is symmetrical.

Optionally, the exhaust tube is connected with supervisor far from one end of connecting tube, and the outside being responsible for is equipped with threeway, institute It stating to be fitting to connection between supervisor and exhaust tube, the supervisor passes through to be connected with each other between exhaust tube and connecting tube, and be responsible for External structure size matches with the inner structure size of threeway, and threeway is uniformly arranged along the horizontal direction of supervisor.

Optionally, it is connected with shaft below the threeway, and rotating cylinder is installed below shaft, the shaft and threeway Between to be fitting to connection, size cooperates between the shaft and threeway, and rotating cylinder between shaft and threeway by mutually interconnecting It connects.

Optionally, it is provided with groove at left and right sides of the inside of the positioning plate, and the inside of groove is placed with locating shaft, The inside of the locating shaft is provided with card slot, and the inside of card slot is placed with card through there is fixing axle on the inside of the locating shaft Plate, to be fitting to connection between the snap-gauge and card slot, the inner structure size of the locating shaft and the external structure ruler of fixing axle It is very little to match, and the vertical centerline between fixing axle between locating shaft about positioning plate is symmetrical.

Optionally, be provided with crawler belt below the fixed frame, and fixed frame is located at the inside of snap-gauge, the crawler belt it is interior Portion is equipped with runner, fits closely between the medial surface of the crawler belt and the lateral surface of runner, and between crawler belt and runner mutually Cooperation constitutes rotational structure.

Optionally, the inside of the fixed frame is equipped with the second hydraulic stem, and is connected with activity on the inside of the second hydraulic stem Plate is provided with second spring, the movable plate to be Nian Jie between the movable plate and the second hydraulic stem on the inside of the movable plate Outer shape be arc, and between movable plate, between the second hydraulic stem, between second spring about the center line of fixed frame Distribution annular in shape.

Optionally, the inside of the rotating cylinder is placed with lid, and belt is provided at left and right sides of lid, the belt Inside up and down two sides be mounted on idler wheel, rotational structure is constituted between the idler wheel and belt, and between idler wheel with belt it Between it is symmetrical about the vertical centerline of lid.

The utility model provides a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure, has following beneficial Effect:

1, this kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure can be from main body by the setting of support Bottom carry out reinforcing support, be provided with connecting rod on the inside of support, connecting rod by the way of arranged in a crossed manner come to support into Row support is conducive to the stability for reinforcing support, and then improves the stability of entire main body, and the inside of support is equipped with air bag, By the setting of air bag, support can be made to have the function of damping, avoid pressure excessive, cause support impaired, in addition air bag Internal to be provided with the first spring simultaneously, the first spring can be such that compressed air bag resets rapidly, in order to carry out next time Operation.

2, this kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure, by the way that tracheae is arranged, can make vacuum pump It can be evacuated, be attached between tracheae and exhaust tube by connecting tube, be conducive to replace exhaust tube in this way, keep away Exempt from exhaust tube prolonged use, cause aging, influence to be evacuated, is connected with each other, extends so whole between exhaust tube and supervisor The length of a pipeline can change the gas flow of main pipe by the setting of threeway, can take out to multiple groups product Gas substantially increases the working efficiency of device, accelerates operating rate, is in addition threaded between threeway and supervisor, this sample prescription Just threeway is mounted and dismounted.

3. this kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure can by the setting of the first hydraulic stem Move downward pressing plate, the first hydraulic stem is evenly arranged with four groups altogether along the horizontal direction of main body, can make pressing plate institute in this way The power being subject to is more uniform, pressing plate will not be caused unbalance because of unbalance stress, and then influences the operation of spiral cover, pulley and slideway Setting can cooperate the first hydraulic stem to carry out using the friction of reduction pressing plate during exercise can reduce friction bring mill Damage.

It, can be to need by the setting of fixed frame 4. this kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure Placement is fixed in the product to be packed, and the rotational structure between crawler belt and runner can directly convey fixed frame, solution It has determined the problem of product is toppled over when conveying to product, by the setting of snap-gauge and card slot, snap-gauge can be enterprising in card slot Row sliding can carry out positioning and guiding to fixed frame in this way, and avoiding fixed frame, position shifts during transportation, causes to fill Setting can not operate, and drag slow job schedule.

5. there is this kind the vacuum Cover whirling Machine of the replaceable threeway of fixed structure can be helped by the setting of movable plate Product is fixed, and product can be made more stable in the inside of fixed frame, and every four pieces of movable plate are one group, and one shares five Group can carry out packaging operation to five set products whereby, and four groups of movable plates positioned at periphery are carried out by the second hydraulic stem Activity, and internal movable plate directly carries out activity since space is limited by second spring, the effect with stable prod Fruit, in addition, constituting rotational structure between shaft and rotating cylinder, shaft is hollow structure, is on the one hand able to drive rotating cylinder and is rotated, On the other hand it will not influence supervisor by hollow structure to be evacuated the inside of product.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is enlarged structure schematic diagram at A in the utility model Fig. 1；

Fig. 3 is the utility model positioning plate side structure schematic diagram；

Fig. 4 is the utility model fixed frame schematic diagram of internal structure；

Fig. 5 is enlarged structure schematic diagram at B in the utility model Fig. 1；

Fig. 6 is the utility model threeway and supervisor's attachment structure schematic diagram.

In figure: 1, main body；2, support；3, connecting rod；4, positioning plate；5, vacuum pump；6, tracheae；7, connecting tube；8, it is evacuated Pipe；9, the first hydraulic stem；10, pressing plate；11, pulley；12, slideway；13, it is responsible for；14, threeway；15, shaft；16, rotating cylinder；17, gas Capsule；18, the first spring；19, groove；20, locating shaft；21, fixing axle；22, card slot；23, snap-gauge；24, fixed frame；25, crawler belt； 26, runner；27, the second hydraulic stem；28, movable plate；29, second spring；30, lid；31, belt；32, idler wheel.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot It is interpreted as indication or suggestion relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

Fig. 1 to Fig. 6 is please referred to, the utility model provides a kind of technical solution: a kind of replaceable three with fixed structure Logical vacuum Cover whirling Machine, including main body 1, positioning plate 4 and fixed frame 24, the lower inner of main body 1 are equipped with support 2, support 2 with To be fitting to connection between main body 1, the inside of support 2 is connected with connecting rod 3, and the inside of support 2 is placed with air bag 17, connecting rod To be fixedly welded between 3 and support 2, the positioned inside of air bag 17 has the first spring 18, be between air bag 17 and support 2 it is Nian Jie, The vertical centerline of air bag 17 and the vertical centerline of the first spring 18 overlap, and the first spring 18 is in the inside of air bag 17 Run through vertically, by the setting of support 2, reinforcing support can be carried out from the bottom of main body 1, the inside of support 2 is provided with connection Bar 3, connecting rod 3 are supported support 2 by the way of arranged in a crossed manner, are conducive to the stability for reinforcing support 2, Jin Erti The stability of high entire main body 1, the right side of positioning plate 4 is equipped with vacuum pump 5, and positioning plate 4 is located at the centre of main body 1, positioning It is provided with groove 19 at left and right sides of the inside of plate 4, and the inside of groove 19 is placed with locating shaft 20, the inside of locating shaft 20 is passed through It is installed with fixing axle 21, the inside of locating shaft 20 is provided with card slot 22, and the inside of card slot 22 is placed with snap-gauge 23, snap-gauge 23 and card To be fitting to connection between slot 22, the inner structure size of locating shaft 20 matches with the external structure size of fixing axle 21, and solid Vertical centerline between dead axle 21 between locating shaft 20 about positioning plate 4 is symmetrical, passes through setting for snap-gauge 23 and card slot 22 It sets, snap-gauge 23 can be slided on card slot 22, can carry out positioning and guiding to fixed frame 24 in this way, fixed frame 24 is avoided to exist Position shifts in transmission process, causes device that can not operate, and drags slow job schedule；

The inside of vacuum pump 5 is connected with tracheae 6, and tracheae 6 is connected with connecting tube 7, tracheae 6 far from one end of vacuum pump 5 To be fitting to connection between vacuum pump 5, connecting tube 7 is provided with exhaust tube 8, connecting tube 7 and exhaust tube 8 far from one end of tracheae 6 Between to be fitting to connection, vacuum pump 5 between tracheae 6 and connecting tube 7 by being connected with each other, and the outer shape of connecting tube 7 is " L " Type can be such that vacuum pump 5 is evacuated, be carried out between tracheae 6 and exhaust tube 8 by connecting tube 7 by the way that tracheae 6 is arranged Connection, is conducive to replace exhaust tube 8 in this way, avoids 8 prolonged use of exhaust tube, cause aging, influence to be evacuated, and takes out Tracheae 8 is connected with supervisor 13 far from one end of connecting tube 7, and the outside of supervisor 13 is equipped with threeway 14, supervisor 13 and exhaust tube 8 Between to be fitting to connection, supervisor 13 by being connected with each other between exhaust tube 8 and connecting tube 7, and be responsible for 13 external structure size It matches with the inner structure size of threeway 14, and threeway 14 is uniformly arranged along the horizontal direction of supervisor 13, exhaust tube 8 and master It is connected with each other between pipe 13, extends the length of entire pipeline in this way, by the setting of threeway 14, can changed inside supervisor 13 Gas flow, multiple groups product can be evacuated, substantially increase the working efficiency of device, accelerate operating rate, threeway 14 lower section is connected with shaft 15, and the lower section of shaft 15 is equipped with rotating cylinder 16, and the inside of rotating cylinder 16 is placed with lid 30, and covers The left and right sides of son 30 is provided with belt 31, and the inside of belt 31 is mounted on idler wheel 32, idler wheel 32 and belt in two sides up and down Rotational structure is constituted between 31, and the vertical centerline between idler wheel 32 between belt 31 about lid 30 is symmetrical, shaft Rotational structure is constituted between 15 and rotating cylinder 16, shaft 15 is hollow structure, is on the one hand able to drive rotating cylinder 16 and is rotated, another Aspect will not influence by hollow structure and be evacuated to the inside of product；

To be fitting to connection between shaft 15 and threeway 14, size cooperates between shaft 15 and threeway 14, and rotating cylinder 16 By being connected with each other between shaft 15 and threeway 14, it is threaded between threeway 14 and supervisor 13 so that it is convenient to threeway 14 It being mounted and dismounted, the top of main body 1 is placed with the first hydraulic stem 9, and the bottom of the first hydraulic stem 9 is connected with pressing plate 10, It is sticky connection between pressing plate 10 and the first hydraulic stem 9, the left and right sides of pressing plate 10 is respectively and fixedly provided with pulley 11, and pulley 11 is outer Side is provided with slideway 12, is welding between slideway 12 and main body 1 to be fixedly welded between pulley 11 and pressing plate 10, pulley 11 with Between slideway 12 cooperate constitute slide construction, and between pulley 11 between slideway 12 about the vertical center of pressing plate 10 Line is symmetrical, by the setting of the first hydraulic stem 9, pressing plate 10 can be made to move downward, and the first hydraulic stem 9 is along the level side of main body 1 To being evenly arranged with four groups altogether, power suffered by pressing plate 10 can be made more uniform in this way, will not caused because of unbalance stress Pressing plate 10 is unbalance, and then influences the operation of spiral cover, and the lower section of fixed frame 24 is provided with crawler belt 25, and fixed frame 24 is located at snap-gauge 23 Inside, the inside of crawler belt 25 is equipped with runner 26, fits closely between the medial surface of crawler belt 25 and the lateral surface of runner 26, and It cooperates between crawler belt 25 and runner 26 and constitutes rotational structure, by the setting of fixed frame 24, the production that needs can be packed Placement is fixed in product, and the rotational structure between crawler belt 25 and runner 26 can directly convey fixed frame 24, solve The problem of product is toppled over when conveying to product；

The inside of fixed frame 24 is equipped with the second hydraulic stem 27, and the inside of the second hydraulic stem 27 is connected with movable plate 28, To be Nian Jie between movable plate 28 and the second hydraulic stem 27, the inside of movable plate 28 is provided with second spring 29, movable plate 28 outside Portion's shape be arc, and between movable plate 28, between the second hydraulic stem 27, between second spring 29 about in fixed frame 24 Heart line is annularly distributed, and by the setting of movable plate 28, product can be helped to be fixed, product can be made in fixed frame 24 Internal more stable, 28 every four pieces of movable plate are one group, and one shares five groups, can carry out packaging behaviour to five set products whereby Make.

In conclusion this kind has the vacuum Cover whirling Machine of the replaceable threeway of fixed structure, in use, first by packaging Product is placed on the inside of the movable plate 28 inside fixed frame 24, according to the external structure size of product, utilizes the second hydraulic stem 27 principles that can be pressurized by compressed air, the second hydraulic stem 27 can push movable plate 28 inwardly, Movable plate 28 can cause to squeeze to second spring 29 simultaneously when being moved inwardly, until the complete jointing product of movable plate 28 Outside, second spring 29 can guarantee the stability of movable plate 28, while prevent movable plate 28 from causing to damage to product, then Using the rotation relation between crawler belt 25 and runner 26, runner 26 can drive crawler belt 25 to be rotated, meeting after crawler belt 25 rotates It drives the fixed frame 24 of top to be moved, fixed frame 24 is made to be moved to the lower section of rotating cylinder 16, the first hydraulic stem 9 uses and second The identical principle of hydraulic stem 27, pressing plate 10 is pressed downward, and when pressing plate 10 is pressed downward, pulley 11 can cooperate to be slided in slideway 12 It is dynamic, it contacts rotating cylinder 16 with the bottleneck of product, starts the vacuum pump 5 of model 2BE, vacuum pump 5 can use gas Connection relationship between pipe 6 and connecting tube 7 and exhaust tube 8, then product is evacuated by supervisor 13, when product is pumped into very After sky, using the rotation relation between idler wheel 32 and belt 31, belt 31 can successively be covered lid 30 on product, later shaft 15 drive rotating cylinders 16 are rotated, and lid 30 is tightened.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its inventive concept is subject to equivalent substitution or change, should all cover the protection scope of the utility model it It is interior.

Claims

1. a kind of vacuum Cover whirling Machine of the replaceable threeway with fixed structure, including main body (1), positioning plate (4) and fixed frame (24), it is characterised in that: the lower inner of the main body (1) is equipped with support (2), is between the support (2) and main body (1) It is fitting to connection, is equipped with vacuum pump (5) on the right side of the positioning plate (4), and positioning plate (4) is located at the centre of main body (1), it is described It is placed with above main body (1) the first hydraulic stem (9), and the bottom of the first hydraulic stem (9) is connected with pressing plate (10), the pressing plate It (10) is sticky connection between the first hydraulic stem (9).

2. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 1, it is characterised in that: It is connected with connecting rod (3) on the inside of the support (2), and the inside of support (2) is placed with air bag (17), the connecting rod (3) To be fixedly welded between support (2), the positioned inside of the air bag (17) has the first spring (18), the air bag (17) and branch It is bonding between seat (2), the vertical centerline of the air bag (17) and the vertical centerline of the first spring (18) overlap, and First spring (18) runs through in the inner vertical of air bag (17).

3. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 1, it is characterised in that: It is connected with tracheae (6) on the inside of the vacuum pump (5), and tracheae (6) is connected with connecting tube (7) far from the one end of vacuum pump (5), To be fitting to connection between the tracheae (6) and vacuum pump (5), the connecting tube (7) is provided with pumping far from the one end of tracheae (6) It manages (8), to be fitting to connection between the connecting tube (7) and exhaust tube (8), the vacuum pump (5) passes through tracheae (6) and connecting tube (7) it is connected with each other between, and the outer shape of connecting tube (7) is " L " type.

4. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 1, it is characterised in that: It is respectively and fixedly provided with pulley (11) at left and right sides of the pressing plate (10), and is provided with slideway (12), the cunning on the outside of pulley (11) To be fixedly welded between wheel (11) and pressing plate (10), to weld between the slideway (12) and main body (1), the pulley (11) and Between slideway (12) cooperate constitute slide construction, and between pulley (11) between slideway (12) about pressing plate (10) Vertical centerline is symmetrical.

5. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 3, it is characterised in that: The exhaust tube (8) is connected with supervisor (13) far from the one end of connecting tube (7), and is responsible on the outside of (13) and is equipped with threeway (14), to be fitting to connection between supervisor (13) and the exhaust tube (8), the supervisor (13) passes through exhaust tube (8) and connecting tube (7) it is connected with each other between, and the external structure size for being responsible for (13) matches with the inner structure size of threeway (14), and three Logical (14) are uniformly arranged along the horizontal direction of supervisor (13).

6. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 5, it is characterised in that: It is connected with shaft (15) below the threeway (14), and rotating cylinder (16) is installed below shaft (15), the shaft (15) To be fitting to connection between threeway (14), size cooperates between the shaft (15) and threeway (14), and rotating cylinder (16) is logical It crosses between shaft (15) and threeway (14) and is connected with each other.

7. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 1, it is characterised in that: It is provided with groove (19) at left and right sides of the inside of the positioning plate (4), and the inside of groove (19) is placed with locating shaft (20), The inside of the locating shaft (20) is provided with card slot (22) on the inside of the locating shaft (20) through having fixing axle (21), and is blocked The inside of slot (22) is placed with snap-gauge (23), to be fitting to connection between the snap-gauge (23) and card slot (22), the locating shaft (20) inner structure size matches with the external structure size of fixing axle (21), and between fixing axle (21) with locating shaft (20) vertical centerline between about positioning plate (4) is symmetrical.

8. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 7, it is characterised in that: It is provided with crawler belt (25) below the fixed frame (24), and fixed frame (24) is located at the inside of snap-gauge (23), the crawler belt (25) inside is equipped with runner (26), is fitted closely between the medial surface of the crawler belt (25) and the lateral surface of runner (26), And it cooperates between crawler belt (25) and runner (26) and constitutes rotational structure.

9. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 8, it is characterised in that: The inside of the fixed frame (24) is equipped with the second hydraulic stem (27), and is connected with movable plate on the inside of the second hydraulic stem (27) (28), between the movable plate (28) and the second hydraulic stem (27) to be Nian Jie, second is provided on the inside of the movable plate (28) Spring (29), the outer shape of the movable plate (28) are arc, and between movable plate (28), between the second hydraulic stem (27), Center line between second spring (29) about fixed frame (24) is annularly distributed.

10. a kind of vacuum Cover whirling Machine of replaceable threeway with fixed structure according to claim 6, feature exist In: the inside of the rotating cylinder (16) is placed with lid (30), and belt (31) are provided at left and right sides of lid (30), described The inside of belt (31) is mounted on idler wheel (32) two sides up and down, and rotation knot is constituted between the idler wheel (32) and belt (31) Structure, and the vertical centerline between idler wheel (32) between belt (31) about lid (30) is symmetrical.