CN214216273U - Vacuum-pumping device of cloth packaging machine - Google Patents

Abstract

The utility model relates to a cloth packagine machine's evacuating device belongs to cloth packagine machine's technical field, and it includes the packagine machine body, be connected with the evacuation pipe on the packagine machine body, be connected with collection mechanism on the evacuation pipe, collection mechanism includes the collecting box, the evacuation pipe with the collecting box is linked together, the articulated chamber door of installing on the collecting box, the draw-in groove has been seted up to circumference on the inside wall of collecting box, slidable mounting has the filter screen in the draw-in groove, the filter screen below still be connected with the connecting pipe on the collecting box, the connecting pipe is connected to evacuation mechanism. The thin film collecting device has the effect of being capable of collecting and processing the cut thin film in a centralized mode.

Description

Vacuum-pumping device of cloth packaging machine

Technical Field

The application relates to the technical field of cloth packagine machine, especially, relate to a cloth packagine machine's evacuating device.

Background

Nonwoven fabrics (also known as Non-Woven fabrics) are made of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity or irritation, rich color, low price, recycling and the like. For example, the polypropylene (pp material) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling. After the production of non-woven fabrics was accomplished, common packaging mode is for packing through the manual work or pack through cloth packagine machine, and cloth packagine machine is efficient, working strength is low, consequently, the wide application is in all kinds of textile enterprises.

If the granted publication number is CN210028091U, it discloses a cloth vacuum packaging machine, which comprises a frame, a first conveying device and a vacuum-pumping device, wherein the first conveying device is fixedly installed on the frame, the frame at both sides of the first conveying device is slidably installed with the vacuum-pumping device, and the vacuum-pumping device comprises a first shell, a vacuum-pumping port, a vacuum-pumping tube, a heat-sealing mechanism and a cutting mechanism; first casing slidable mounting is in the frame, and the evacuation mouth is seted up on first casing, and the evacuation mouth of keeping away from one side of first conveyer is connected with the vacuum tube, and heat-sealing mechanism installs in the cavity of first casing, cuts the mechanism and installs in the cavity of first casing, and heat-sealing mechanism and cutting mechanism are along being close to first conveyer to keeping away from first conveyer parallel arrangement.

In view of the above-mentioned related art, the inventor believes that when the cloth coated with the film is vacuumized, a negative pressure is formed at the vacuuming device by externally connecting a vacuuming tube, and the negative pressure can suck air in the film, so that the film can vacuum-pack the cloth. In the above technical solution, the cut films are not collected in a centralized manner, and therefore, a vacuum extractor capable of collecting the cut films in a centralized manner is required.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the cloth packaging machine cannot perform centralized processing on films after heat sealing and cutting, the application provides a vacuum pumping device of the cloth packaging machine.

The application provides a cloth packagine machine's evacuating device adopts following technical scheme:

the utility model provides a cloth packagine machine's evacuating device, includes the packagine machine body, be connected with the evacuation pipe on the packagine machine body, be connected with collection mechanism on the evacuation pipe, collection mechanism includes the collecting box, the evacuation pipe with the collecting box is linked together, the articulated chamber door of installing on the collecting box, the draw-in groove has been seted up to circumference on the inside wall of collecting box, slidable mounting has the filter screen in the draw-in groove, the filter screen below still be connected with the connecting pipe on the collecting box, the connecting pipe is connected to evacuation mechanism.

Through adopting above-mentioned technical scheme, evacuation mechanism produces the negative pressure to form the negative pressure in the collecting box through the connecting pipe, the negative pressure in the collecting box carries out the evacuation through the evacuation pipe to cloth on the packagine machine body. After the cloth is vacuumized, the films at the two ends of the cloth are cut and heat-sealed, and the cut films are absorbed into a collection box by negative pressure in a vacuuming pipe. The filter screen in the collecting box can block the film to collect the film in the collecting box in unison. When the film in the collecting box is too much, the collected film can be processed in a centralized way only by opening the box door.

Optionally, a plurality of vertical grooves are further circumferentially formed in the inner side walls of the collecting box and the box door, the grooves are communicated with the clamping grooves, and filter covers are mounted in the grooves through connecting pieces.

Through adopting above-mentioned technical scheme, the filter screen is sealed by the film in the collecting box easily and is blockked up, leads to the adsorption effect variation of evacuation pipe. Additionally set up the recess and set up the filter mantle in the recess, can form a plurality of vertical negative pressure passageways on the inside wall of collecting box, even the film piles up more, and the filter screen is shielded the back by the film, and the filter mantle of recess upper end still can form the passageway of negative pressure.

Optionally, the connecting piece includes fixed mounting and is in connecting block on the week lateral wall of filter mantle, first spread groove has been seted up in the recess, still set up in the recess with the second spread groove that first spread groove is linked together, first spread groove with the second spread groove all with connecting block sliding fit, the third spread groove has been seted up on the top lateral wall of recess, the slope is provided with the elasticity locking strip in the third spread groove, install the locking piece on the elasticity locking strip, seted up on the filter mantle with locking piece complex locked groove.

Through adopting above-mentioned technical scheme, the filter screen can directly be pulled and take off along the draw-in groove and clear up or change, and the filter screen back of taking off can promote the locking piece, makes the locking piece deviate from the locked groove, promotes the filter mantle again and makes the connecting block at first slide along the second spread groove to in sliding into first spread groove, pull the filter mantle again, make the connecting block slide along first spread groove, can make the filter mantle deviate from in the recess, in order to clear up or change the filter mantle.

Optionally, the evacuation mechanism is including the installation pipe, the installation pipe is close to the one end of connecting pipe with the connecting pipe is linked together, fixed mounting has the power pipe on the installation pipe, slidable mounting has the power piece in the power pipe, the power piece is kept away from the power pole is installed to the one end of installation pipe, the power pipe is kept away from the air vent has been seted up to the one end of installation pipe, the power pipe both ends all install a check valve in the installation pipe, the power outside of tubes still installs subaerial being used for the drive power pole reciprocating motion's drive arrangement.

By adopting the technical scheme, the driving device continuously pulls the power rod to reciprocate, so that the power block continuously reciprocates in the power pipe, negative pressure and high pressure are continuously formed in the power pipe, and the power pipe continuously transmits the negative pressure and the high pressure to the inside of the mounting pipe. When negative pressure exists in the installation pipe, the one-way valve on the side far away from the connecting pipe is closed, the one-way valve on the side close to the connecting pipe is closed, and the negative pressure pumps air through the connecting pipe; when high pressure exists in the installation pipe, the check valve close to one side of the connection pipe is closed, the check valve far away from one side of the connection pipe is opened, and the high pressure in the connection pipe is released through the check valve far away from one side of the connection pipe. Thus, keeping the drive activated allows the air in the collecting tank to be continuously extracted through the connecting tube.

Optionally, the check valve includes a valve ring fixedly installed in the installation pipe, the valve ring is far away from one side of the connection pipe, a valve block is further slidably installed in the installation pipe, a valve pipe is installed at one side of the valve block close to the valve ring, the valve pipe penetrates through the valve block, a blocking block is installed at one end of the valve pipe close to the valve ring, a through hole is formed in the valve pipe, and a pushing piece used for pushing the blocking block to be tightly abutted to the valve ring is further installed in the installation pipe.

By adopting the technical scheme, when negative pressure exists in the installation pipe, the one-way valve far away from one side of the connecting pipe pushes the plugging block to be tightly abutted against the valve ring through the matching of the pushing piece and the negative pressure, so that sealing is formed; the one-way valve close to one side of the connecting pipe overcomes the acting force of the pushing piece through negative pressure, the plugging block is pulled to be separated from the abutting state with the valve ring, and the negative pressure in the mounting pipe extracts air in the connecting pipe through the through hole in the valve pipe. When high pressure exists in the installation pipe, the one-way valve close to one side of the connecting pipe is matched with the high pressure through the pushing piece to push the plugging block to be tightly abutted against the valve ring, so that sealing is formed; the check valve far away from one side of the connecting pipe overcomes the acting force of the pushing piece through high pressure, the blocking piece is pushed to be separated from the abutting state with the valve ring, and the high pressure in the mounting pipe is discharged through the through hole in the valve pipe.

Optionally, the pushing element includes a fixing ring, the fixing ring is fixedly mounted in the mounting tube, the fixing ring is close to the side wall on one side of the valve block, a first ring groove is circumferentially formed in the side wall on one side of the valve block, the valve block is close to the side wall on one side of the fixing ring, a second ring groove is circumferentially formed in the side wall on one side of the fixing ring, and a pushing spring used for connecting the valve block and the fixing ring is mounted in the first ring groove and the second ring groove.

Through adopting above-mentioned technical scheme, promote the spring and can promote the sprue and support tightly in order to close whole check valve with the valve ring, and first annular and second annular can be spacing to promoting the spring formation to improve the stability that promotes the spring.

Optionally, the valve ring is close to fixed mounting has a sealing gasket ring on the lateral wall of sprue one side, the sprue is close to the sealing annular groove has been seted up to circumference on the lateral wall of valve ring one side.

Through adopting above-mentioned technical scheme, the leakproofness of valve ring and sprue can be improved in the cooperation of seal ring groove and sealing gasket ring to reduce the possibility of gas leakage.

Optionally, the driving device includes a driving motor fixedly mounted on the ground, an eccentric block is fixedly mounted on a rotating shaft of the driving motor, a driving ring is rotatably sleeved on the eccentric block through a bearing, the driving ring is close to one end of the power rod, a driving rod is mounted on the driving rod, a driving block is rotatably mounted on the driving rod, the driving block is connected with the power rod, a slide rail is further mounted on the ground, and the driving block is slidably connected with the slide rail.

Through adopting above-mentioned technical scheme, driving motor can drive eccentric block eccentric rotation, and the eccentric rotation of eccentric block transmits for the actuating lever through the drive ring to through actuating lever pulling power pole reciprocating motion. In the process, the slide rail can not only support the driving block, but also limit the sliding path of the driving block so as to improve the sliding stability of the driving block.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the collection device to be matched with the vacuumizing mechanism, the cloth on the packaging machine body can be vacuumized, and cut films can be adsorbed, collected in a centralized manner and recycled;

2. by additionally arranging the groove and detachably installing the filter cover in the groove through the connecting piece, the using effect of the collecting device is improved, and the cleaning times of workers are reduced;

3. through setting up two check valves and drive arrangement to realize constantly forming the purpose of negative pressure.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the collecting box according to the embodiment of the present application, and the box door in the drawing is in an open state.

Fig. 3 is a schematic view of the internal structure of the collecting box according to the embodiment of the present application, and the filter cover is in a removed state.

Fig. 4 is a schematic structural diagram of a driving device according to an embodiment of the present application.

FIG. 5 is a cross-sectional view of a mounting tube and a power tube of an embodiment of the present application.

FIG. 6 is a cross-sectional view of a one-way valve according to an embodiment of the present application.

Fig. 7 is an enlarged view of a portion a of fig. 6.

Description of reference numerals: 1. a packaging machine body; 11. vacuumizing a tube; 2. a collection mechanism; 21. a collection box; 22. a box door; 23. a card slot; 24. filtering with a screen; 25. a groove; 26. a filter housing; 3. a connecting member; 31. connecting blocks; 32. a first connecting groove; 33. a second connecting groove; 34. a third connecting groove; 35. an elastic locking bar; 36. a locking block; 37. locking the groove; 4. a connecting pipe; 5. a vacuum pumping mechanism; 51. installing a pipe; 52. a power tube; 53. a power block; 54. a power rod; 55. a vent hole; 6. a one-way valve; 61. a valve ring; 62. a valve block; 63. a valve tube; 64. a through hole; 65. blocking; 66. sealing the ring groove; 67. a sealing gasket ring; 68. a pusher member; 681. a fixing ring; 682. a first ring groove; 683. a second ring groove; 684. a push spring; 7. a drive device; 71. a drive motor; 72. an eccentric block; 73. a drive ring; 74. a drive rod; 75. a drive block; 76. a slide rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses cloth packagine machine's evacuating device.

As shown in fig. 1, the vacuum pumping device of the cloth packing machine comprises a packing machine body 1, a vacuum pumping pipe 11 is connected to the packing machine body 1, and a collecting mechanism 2 is connected to one end of the vacuum pumping pipe 11 far away from the packing machine body 1.

As shown in fig. 1 and 2, the collecting mechanism 2 includes a collecting box 21 placed on the ground, the evacuation tube 11 is connected to the top wall of the collecting box 21, and the evacuation tube 11 is communicated with the collecting box 21. The collecting box 21 is hinged with a box door 22, horizontal clamping grooves 23 are circumferentially formed in three vertical inner side walls of the collecting box 21, and a filter screen 24 is slidably arranged in the clamping grooves 23.

As shown in fig. 2 and 3, the three vertical inner side walls of the collecting box 21 are provided with vertical grooves 25, the grooves 25 are communicated with the clamping grooves 23, and a filter cover 26 is arranged in each groove 25 through a connecting piece 3. The connecting member 3 includes a plurality of connecting blocks 31, and the connecting blocks 31 are fixedly installed on the vertical side walls of the filter housing 26. A plurality of horizontal first connecting grooves 32 are formed in the groove 25, a vertical second connecting groove 33 is further formed in the groove 25, and the second connecting groove 33 is communicated with the top side wall of the first connecting groove 32. The connection block 31 passes through the first connection groove 32 to be slidably fitted with the second connection groove 33.

As shown in fig. 2 and 3, a third connecting groove 34 is formed in the inner top wall of the collecting box 21, an elastic locking bar 35 is fixedly installed in the third connecting groove 34, the elastic locking bar 35 is obliquely arranged, a locking block 36 is fixedly installed on the bottom wall of the elastic locking bar 35, and a locking groove 37 which is in clamping fit with the locking block 36 is formed in the inner side wall of the top end of the filter cover 26.

As shown in fig. 3 and 4, the collecting box 21 below the filter screen 24 is also connected with a connecting pipe 4, and one end of the connecting pipe 4 far away from the collecting box 21 is connected with the vacuum-pumping mechanism 5.

As shown in fig. 4 and 5, the vacuum pumping mechanism 5 includes a mounting tube 51, the mounting tube 51 is fixedly mounted on the ground, one end of the mounting tube 51 close to the connecting tube 4 is communicated with the connecting tube 4, and the inner side walls of the two ends of the mounting tube 51 are respectively provided with a one-way valve 6.

As shown in fig. 5 and 6, the check valve 6 includes a valve ring 61 fixedly installed in the installation tube 51, and a valve block 62 is further slidably installed in the installation tube 51 at a side of the valve ring 61 away from the connection tube 4. A valve pipe 63 is fixedly mounted on the side wall of the valve block 62 close to the valve ring 61, the valve pipe 63 penetrates through the valve block 62, and a through hole 64 is circumferentially formed in the circumferential side wall of the valve pipe 63.

As shown in fig. 6 and 7, a blocking block 65 is fixedly installed at one end of the valve pipe 63 close to the valve ring 61, a sealing ring groove 66 is circumferentially formed on a side wall of the blocking block 65 close to the valve ring 61, and a sealing gasket ring 67 matched with the sealing ring groove 66 is fixedly installed on a side wall of the valve ring 61 close to the blocking block 65.

As shown in fig. 6 and 7, a pushing member 68 for pushing the blocking piece 65 to abut against the valve ring 61 is further installed in the mounting tube 51, the pushing member 68 includes a fixing ring 681, the fixing ring 681 is fixedly installed in the mounting tube 51, and the fixing ring 681 is located on the inner side wall of the valve block 62 on the side away from the connecting tube 4. A first annular groove 682 is circumferentially formed in the side wall of the fixing ring 681 on the side close to the valve block 62, a second annular groove 683 is circumferentially formed in the side wall of the valve block 62 on the side close to the fixing ring 681, and a push spring 684 for connecting the valve block 62 and the fixing ring 681 is installed in the first annular groove 682 and the second annular groove 683.

As shown in fig. 4 and 5, a power tube 52 perpendicular to and communicated with the mounting tube 51 is further fixedly mounted on the mounting tube 51 between the two check valves 6, a power block 53 is slidably mounted in the power tube 52, and the diameter of the power block 53 is the same as the inner diameter of the power tube 52. A power rod 54 is fixedly arranged on the side wall of the power block 53 far away from the mounting pipe 51, and the axis of the power rod 54 is coincided with the axis of the power block 53. The side wall of the power pipe 52 far away from the mounting pipe 51 is provided with a vent hole 55.

As shown in fig. 4 and 5, a driving device 7 for driving the power rod 54 to reciprocate is further mounted on the ground outside the power pipe 52, the driving device 7 includes a driving motor 71 fixedly mounted on the ground, an eccentric block 72 is fixedly mounted on a rotating shaft of the driving motor 71, a bearing is mounted on the eccentric block 72 in a sleeved manner, and a driving ring 73 is mounted on the bearing in a sleeved manner. A driving rod 74 is fixedly mounted on the peripheral side wall of the driving ring 73 near one end of the power rod 54, a driving block 75 is rotatably mounted at one end of the driving rod 74 far from the driving ring 73, and the driving block 75 is connected with one end of the power rod 54 far from the power block 53. The ground is also provided with a slide rail 76, and the slide rail 76 is connected with the driving block 75 in a sliding way.

The implementation principle of the embodiment is as follows:

before the packaging machine body 1 packages the cloth, the filter cover 26 and the filter net 24 need to be installed. The door 22 is first opened to mount the filter housing 26, and when the filter housing 26 is mounted, the filter housing 26 is pushed to allow the connecting block 31 on the filter housing 26 to be engaged with the first connecting groove 32, and the filter housing 26 is further pushed to allow the connecting block 31 to slide along the first connecting groove 32 to slide into the second connecting groove 33. When the connecting block 31 is slid into the second connecting groove 33, the filter housing 26 is pushed vertically upward, so that the connecting block 31 is slid along the second connecting groove 33. As the filter cover 26 continues to slide, the top side wall of the filter cover 26 abuts against the top side wall of the groove 25, in the process, the filter cover 26 first pushes the lock block 36 to drive the elastic lock strip 35 to generate elastic deformation, and finally, the elastic lock strip 35 restores the elastic deformation force to push the lock block 36 to be clamped into the lock groove 37, so that the installation of the filter cover 26 is completed. After the filter cover 26 is installed, the filter cover 26 and the clamping groove 23 are in the same vertical plane.

After the filter cover 26 is mounted, the filter net 24 is pushed along the catching groove 23, thereby completing the mounting of the filter net 24. After the filter screen 24 is installed, the door 22 is closed, and normal production can be performed.

The driving motor 71 is started, the driving motor 71 can drive the eccentric block 72 to rotate eccentrically, and the eccentric rotation of the eccentric block 72 is transmitted to the driving rod 74 through the driving ring 73, so that the power rod 54 is pulled to reciprocate through the driving rod 74. In the process, the slide rail 76 not only can support the driving block 75, but also can limit the sliding path of the driving block 75 so as to improve the sliding stability of the driving block 75.

During the reciprocating motion of the power rod 54, the power block 53 can be driven to slide back and forth along the power pipe 52, and the diameter of the power block 53 is the same as the inner diameter of the power pipe 52, so that the power block 53 can slide to continuously form a negative pressure and a high pressure circulation in the power pipe 52.

When negative pressure exists in the installation pipe 51, the check valve 6 far away from the side of the connecting pipe 4 pushes the blocking block 65 to be tightly abutted against the valve ring 61 through the inference of the pushing spring 684 and the matching of the negative pressure, so that sealing is formed; the check valve 6 near the side of the connecting pipe 4 overcomes the action force of the pushing spring 684 through negative pressure, the blocking block 65 is pulled to be separated from the abutting state with the valve ring 61, and the negative pressure in the mounting pipe 51 draws air in the connecting pipe 4 through the through hole 64 in the valve pipe 63 to form negative pressure in the connecting pipe 4. When high pressure exists in the installation pipe 51, the check valve 6 close to one side of the connecting pipe 4 pushes the blocking block 65 to be tightly abutted against the valve ring 61 through the matching of the pushing spring 684 and the high pressure, so that sealing is formed; the check valve 6 far from the connecting pipe 4 overcomes the acting force of the pushing spring 684 through high pressure, the blocking block 65 is pushed to be separated from the abutting state with the valve ring 61, and the high pressure in the mounting pipe 51 is discharged through the through hole 64 in the valve pipe 63. That is, the negative pressure can be continuously formed in the connection pipe 4 only by keeping the start state of the driving motor 71.

The negative pressure in the connecting pipe 4 is firstly transmitted into the collecting box 21, and the negative pressure in the collecting box 21 vacuumizes the cloth on the packaging machine body 1 through the vacuum-pumping pipe 11. After the cloth is vacuumized, the films at the two ends of the cloth are cut and heat-sealed, and the cut films are absorbed into the collection box 21 by the negative pressure in the vacuum-pumping pipe 11.

The filter screen 24 in the collection tank 21 can block the thin film, thereby collecting the thin film in the collection tank 21 uniformly. When the membrane in the collection box 21 completely covers the filter screen 24, the filter screen 24 is easily blocked by the membrane, resulting in poor adsorption effect of the vacuum tube 11. The groove 25 is additionally arranged, the filter cover 26 is arranged in the groove 25, a plurality of vertical negative pressure channels can be formed on the inner side wall of the collecting box 21, and even if more films are accumulated, the filter cover 26 at the upper end of the groove 25 can still form a negative pressure channel after the filter screen 24 is shielded by the films.

When the film in the collection box 21 is too much, the collected film can be processed in a centralized way only by opening the box door 22. At the moment, the filter screen 24 can be taken down from the clamping groove 23 to be cleaned or replaced by directly pulling the filter screen 24; after the filter screen 24 is taken down, the locking block 36 can be pushed to make the locking block 36 be separated from the locking groove 37, then the filter cover 26 is pushed to make the connecting block 31 firstly slide along the second connecting groove 33 and slide into the first connecting groove 32, then the filter cover 26 is pulled to make the connecting block 31 slide along the first connecting groove 32, and then the filter cover 26 can be separated from the groove 25 to clean or replace the filter cover 26.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a cloth packagine machine's evacuating device, includes packagine machine body (1), its characterized in that: be connected with evacuation pipe (11) on packagine machine body (1), be connected with collection mechanism (2) on evacuation pipe (11), collection mechanism (2) are including collecting box (21), evacuation pipe (11) with collecting box (21) are linked together, articulated chamber door (22) of installing on collecting box (21), draw-in groove (23) have been seted up to circumference on the inside wall of collecting box (21), slidable mounting has filter screen (24) in draw-in groove (23), filter screen (24) below still be connected with connecting pipe (4) on collecting box (21), connecting pipe (4) are connected to evacuation mechanism (5).

2. The vacuum extractor of a cloth packing machine as claimed in claim 1, wherein: a plurality of vertical grooves (25) are further circumferentially formed in the inner side walls of the collecting box (21) and the box door (22), the grooves (25) are communicated with the clamping grooves (23), and filter covers (26) are mounted in the grooves (25) through connecting pieces (3).

3. The vacuum extractor of a cloth packing machine as claimed in claim 2, wherein: connecting piece (3) are including fixed mounting connecting block (31) on the week lateral wall of filter mantle (26), first connecting groove (32) have been seted up in recess (25), still seted up in recess (25) with second connecting groove (33) that first connecting groove (32) are linked together, first connecting groove (32) with second connecting groove (33) all with connecting block (31) sliding fit, third connecting groove (34) have been seted up on the top lateral wall of recess (25), the slope is provided with elasticity locking strip (35) in third connecting groove (34), install locking piece (36) on elasticity locking strip (35), set up on filter mantle (26) with locking piece (36) complex locking groove (37).

4. The vacuum extractor of a cloth packing machine as claimed in claim 1, wherein: vacuumizing mechanism (5) are including installation pipe (51), installation pipe (51) are close to the one end of connecting pipe (4) with connecting pipe (4) are linked together, fixed mounting has power tube (52) on installation pipe (51), slidable mounting has power block (53) in power tube (52), power block (53) are kept away from power rod (54) are installed to the one end of installation pipe (51), power tube (52) are kept away from air vent (55) have been seted up to the one end of installation pipe (51), power tube (52) both ends all install one check valve (6) in installation pipe (51), the subaerial drive arrangement (7) that are used for driving power rod (54) reciprocating motion that still installs outside power tube (52).

5. The vacuum extractor of a cloth packing machine according to claim 4, wherein: the check valve (6) comprises a valve ring (61) fixedly installed in the installation pipe (51), a valve block (62) is further installed in the installation pipe (51) on one side, away from the connecting pipe (4), of the valve ring (61) in a sliding mode, a valve pipe (63) is installed on one side, close to the valve ring (61), of the valve block (62), the valve pipe (63) penetrates through the valve block (62), a blocking block (65) is installed at one end, close to the valve ring (61), of the valve pipe (63), a through hole (64) is formed in the valve pipe (63), and a pushing piece (68) used for pushing the blocking block (65) to be tightly abutted to the valve ring (61) is further installed in the installation pipe (51).

6. The vacuum extractor of a cloth packing machine as set forth in claim 5, wherein: the push piece (68) is including solid fixed ring (681), gu fixed ring (681) fixed mounting is in installation pipe (51), gu fixed ring (681) is close to circumference has seted up first annular (682) on the lateral wall of valve piece (62) one side, valve piece (62) are close to circumference has seted up second annular (683) on the lateral wall of solid fixed ring (681) one side, first annular (682) with install in second annular (683) and be used for with valve piece (62) with push spring (684) that gu fixed ring (681) links to each other.

7. The vacuum extractor of a cloth packing machine as claimed in claim 6, wherein: valve ring (61) are close to fixed mounting has a sealing gasket ring (67) on the lateral wall of sprue (65) one side, sprue (65) are close to sealing ring groove (66) have been seted up to circumference on the lateral wall of valve ring (61) one side.

8. The vacuum extractor of a cloth packing machine as set forth in claim 7, wherein: drive arrangement (7) include fixed mounting drive motor (71) subaerial, fixed mounting has eccentric block (72) in the pivot of drive motor (71), it installs one drive ring (73) to rotate to cup joint through the bearing on eccentric block (72), drive ring (73) are close to actuating lever (74) are installed to the one end of power rod (54), rotate on drive rod (74) and install one drive block (75), drive block (75) with power rod (54) link to each other, subaerial slide rail (76) of still installing, drive block (75) with slide rail (76) sliding connection.

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