CN217997671U - Anti-pinch device for paper machine return roller - Google Patents

Abstract

The utility model provides a paper machine turn-back roller is with preventing pressing from both sides package and puts belongs to papermaking equipment technical field. This paper machine turn-around roller is with preventing pressing from both sides package and is set up on the workstation, including fixed two door type frames that set up on the workstation, rotate the guide roll of connecting between door type frame, locate the guide roll below and rotate the turn-around roller of being connected with door type frame, loop through the clothing of guide roll and turn-around roller, fixed connection is on the door type frame fixing base, detachable connects between the fixing base in order to be arranged in preventing that the paper from being drawn into the scraper in the turn-around roller, the scraper passes through connecting axle one and is connected with the fixing base. The utility model discloses utilize the scraper to support the paper through the guide roll, avoid the paper to press from both sides back to the return roll along with the traffic direction of clothing in the operation process, solve the problem of guide roll, return roll stock form, improve the life-span of guide roll, return roll and clothing, promote the stability of production process.

Description

Anti-pinch device for paper machine return roller

Technical Field

The utility model relates to a papermaking equipment technical field, concretely relates to paper machine turn-back roll is with preventing pressing from both sides package and puts.

Background

In the papermaking production process, paper can enter the turn-back roll along with the clothing when the paper breaking condition appears, so that the paper winds the turn-back roll to increase the roll diameter of the turn-back roll, and the clothing is easy to deviate or wear.

The solution that adopts at present is that, near the coating jar on the production line is provided with the jet-propelled pipe, holds the jet-propelled pipe and blows to the paper of broken end, makes the paper keep away from the turn-back roller, but because the staff need directly operate with the hand, it is nearer from the net blanket, can produce mechanical injury, has certain potential safety hazard.

Therefore, in order to solve the above problems, it is desirable to design a winding-preventing device for a return roll of a paper machine, which prevents paper from being wound on the return roll along with the running direction of a clothing, so as to prevent the paper from being wound on the return roll and a guide roll, and to prolong the service life of the guide roll, the return roll and the clothing.

Chinese patent with patent publication No. CN110791994B discloses an automatic anti-winding device for a paper machine return roll, which comprises a guide roll, a return roll, a net blanket sequentially passing through the guide roll and the return roll, an air injection pipe arranged outside the net blanket, and a mounting plate for supporting the air injection pipe, wherein the end of the mounting plate far away from the air injection pipe is connected with an adjusting part, the mounting plate rotates around the adjusting part, the air injection pipe is connected with an air injection part for controlling the on-off of air flow in the air injection pipe, and a sensing member for sensing paper and electrically connected with the air injection part is arranged above the guide roll.

This automatic prevent twining paper device can play the effect that prevents that the turn-around roller from twining paper, but the device need adopt the inductor earlier to produce the response to the paper on the net blanket, and jet-propelled pipe just can act on, and poor stability, jet-propelled pipe jet-propelled formation are towards the air current that the oblique top produced, blow the paper and break away from the net blanket, make the paper fall down under the action of gravity, therefore the paper easily receives the interference of other factors at the whereabouts in-process, requires highlyr to the use scene.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a paper machine return roller is with preventing pressing from both sides package and putting utilizes the scraper to support the paper through the guide roll, avoids the paper to press from both sides the return roll along with the traffic direction of clothing back in the operation process, solves the problem of guide roll, return roll stock form, improves the life-span of guide roll, return roll and clothing, promotes the stability of production process.

The utility model provides a paper machine turn-around roller is with preventing pressing from both sides winding apparatus sets up on the workstation, be in including fixed setting two door type frames on the workstation, rotate connect in guide roll between the door type frame, locate the guide roll below and with door type frame rotates the turn-around roller of connecting, loops through the net blanket, the fixed connection of guide roll and turn-around roller are in fixing base, detachable on the door type frame are connected in order to be used for preventing that the paper from being drawn into between the fixing base scraper in the turn-around roller, the scraper pass through connecting axle one with the fixing base is connected.

Preferably, a rubber layer is bonded on the knife edge of the scraper.

As the utility model discloses a preferred, still including connect in order to be used for adjusting the angle adjustment mechanism of scraper angle on the fixing base, the angle adjustment structure include with a connecting axle a fixed connection's sector plate, with the fixing base rotate the pivot of connecting, with pivot fixed connection's connecting axle two, one end with the sector plate is articulated and the other end with connecting axle two articulated actuating levers.

As the utility model discloses a preferred, the sector plate is provided with the mounting hole, the actuating lever is kept away from the tip of connecting axle two is provided with connecting hole one, it has the connecting piece in order to be used for connecting to peg graft in mounting hole and the connecting hole one actuating lever and sector plate.

As the utility model discloses a preferred, can dismantle on the sector plate and be connected with the retaining member, the retaining member can with the sector plate locking is on the fixing base.

As a preferable aspect of the present invention, the locking member has a screw-tightening handle and a screw portion, and an end portion of the screw portion is provided with an anti-slip layer.

Preferably, the rotating shaft is far away from one end of the second connecting shaft, and an operating handle is arranged at the other end of the second connecting shaft.

As the utility model discloses a preferred, be connected with on the workstation and be located the net roller that drives of turn back roller below.

As the utility model discloses a preferred, fixedly connected with connecting plate on the scraper, the connecting axle be provided with on one with the fixed plane that the connecting plate is connected, the connecting plate with connecting axle is one through the screw connection.

As the utility model discloses a preferred, the transversal T style of calligraphy of personally submitting of connecting plate.

The utility model discloses a paper machine turn-around roller is with preventing pressing from both sides package and put has following beneficial effect:

1. the utility model discloses a be provided with the scraper between the door type frame, when the paper moves to the condition of turn-back roller direction along with the net blanket, utilize the scraper to support the paper through the guide roll, change the traffic direction of paper in advance, make the paper break away from net blanket traffic route along the scraper direction, avoid the paper to press from both sides back to the turn-back roller along with the traffic direction of net blanket in the operation process, solve the guide roll, the problem of turn-back roller stock form, improve the guide roll, the life-span of turn-back roller and net blanket, need not to shut down and handle the paper and press from both sides back the problem, promote the stability of production process, the continuity.

2. The utility model discloses be provided with the angle adjustment mechanism who is used for adjusting the scraper angle, the staff rotates operating handle for the pivot is rotated, and then drives two rotations of connecting axle, because actuating lever one end is articulated with two connecting axles and the other end is articulated with the sector plate, the actuating lever rotates along with two connecting axles to drive the sector plate and rotate, connecting axle one rotates along with the sector plate takes place, because scraper and a connecting axle fixed connection, reach the purpose of adjusting the scraper angle, whole stable in structure, easily adjust.

3. The scraper can be dismantled with connecting axle one and be connected, is convenient for change or clean maintenance the scraper to fixedly connected with T style of calligraphy connecting plate on the scraper, the connecting plate is connected with the fixed plane on the connecting axle one, easy to assemble and dismantlement.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. To a person skilled in the art, without inventive effort, other figures can be derived from these figures.

Fig. 1 is the utility model discloses a paper machine turn-around roller is with preventing pressing from both sides overall structure sketch map of rolling up device.

Fig. 2 is a schematic structural diagram of an angle adjustment mechanism according to an embodiment of the present invention.

Fig. 3 is a right side view of the angle adjusting mechanism according to the embodiment of the present invention.

Fig. 4 is a schematic connection diagram of the scraper and the first connection shaft according to the embodiment of the present invention.

In the figure, 100, a door-shaped frame; 200. a guide roller; 300. a back-up roller; 400. a net carpet; 500. a mesh driving roller; 600. a scraper; 610. a first connecting shaft; 611. fixing a plane; 620. a connecting plate; 700. a fixed seat; 800. an angle adjusting mechanism; 810. a sector plate; 811. mounting holes; 820. a rotating shaft; 830. a second connecting shaft; 831. a connecting portion; 840. a drive rod; 850. a locking member; 851. screwing the handle; 852. a threaded portion; 860. an operating handle; 870. a connecting member; 900. a work bench.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The first embodiment is as follows: as shown in fig. 1 to 4, it is only an embodiment of the present invention, a paper machine turn roll anti-pinch device is provided on a workbench 900, including two door-shaped frames 100 fixedly disposed on the workbench 900, a guide roll 200 rotatably connected between the door-shaped frames 100, a turn roll 300 rotatably connected with the door-shaped frames 100 and disposed below the guide roll 200, a clothing 400 sequentially passing through the guide roll 200 and the turn roll 300, a fixing seat 700 fixedly connected to the door-shaped frames 100, a scraper 600 detachably connected between the fixing seat 700 for preventing paper from being rolled into the turn roll 300, and the scraper 600 is connected with the fixing seat 700 through a connecting shaft 610.

In the paper making process, the paper machine is in normal operation and the paper is transported from the clothing 400 to the next transfer device. However, when the running speed of the paper machine is lower than 100m/min or the moisture content of the paper is too high, the paper is easy to be clamped back into the return roll 300 along the running direction of the net blanket 400 at the transition of each group of ovens, so that the paper is rolled by the guide roll 200 and the return roll 300. If the paper when appearing along with the circumstances of net blanket 400 operation to turn back roller 300 direction, the utility model discloses utilize scraper 600 to support the paper through guide roll 200, change the traffic direction of paper in advance, make the paper break away from net blanket 400 traffic route along scraper 600 direction, avoid the paper to press from both sides back to turn back roller 300 along with the traffic direction of net blanket 400 in the operation process, solve the problem of guide roll 200, turn back roller 300 stock form. During the period, the operator can guide the paper into the next process path again without stopping paper cutting, so that normal production is recovered, and the stability and the continuity of the production process are improved.

First, the number of the gate frames 100 is two, and the two gate frames 100 are disposed in parallel on the work table 900. The fixing seats 700 are fixedly connected to the cross bar of the gate frame 100, and the guide roller 200 is rotatably connected between the fixing seats 700. The vertical rod of the door-shaped frame 100 is fixedly connected with a first connecting seat, and the turn-back roller 300 is rotatably connected between the first connecting seats. The workbench 900 is fixedly connected with a second connecting seat, and the net driving roller 500 is rotatably connected between the second connecting seat. The clothing 400 passes in turn over the guide roll 200, the return roll 300, and the drive roll 500, during which the paper on the clothing 400 passes over the guide roll 200 to the next conveyor.

Then, the fixing seat 700 is fixedly connected to the cross bar of the door-shaped frame 100, the first connecting shaft 610 is connected between the fixing seats 700, and the scraper 600 is detachably connected with the first connecting shaft 610 through the connecting plate 620, so that the scraper 600 can be replaced or cleaned and maintained conveniently. It should be noted that the cross section of the connecting plate 620 is T-shaped, the first connecting shaft 610 is provided with a fixing plane 611, and the connecting plate 620 is connected with the fixing plane 611 through screws, so that the dismounting and the mounting are facilitated.

Finally, a rubber layer is bonded to the blade 600. When paper moves to the direction of the return roller 300 along with the clothing 400, the scraper 600 supports the paper passing through the guide roller 200, so that the paper is separated from the running path of the clothing 400 along the direction of the scraper 600, in the process, the paper and the scraper 600 rub against each other, the scraper 600 is provided with a rubber layer, the damage to the paper caused by burrs of the scraper 600 can be avoided, and the paper productivity is improved.

Example two: as shown in fig. 1 to 4, it is only one of the embodiments of the present invention, an anti-pinch device for a paper machine reversing roller further includes an angle adjusting mechanism 800 connected to the fixing base 700 for adjusting the angle of the scraper 600, the angle adjusting mechanism includes a sector plate 810 fixedly connected to the first connecting shaft 610, a rotating shaft 820 rotatably connected to the fixing base 700, a second connecting shaft 830 fixedly connected to the rotating shaft 820, and a driving rod 840 having one end hinged to the sector plate 810 and the other end hinged to the second connecting shaft 830.

First, referring to fig. 2 and 3, the scraper 600 is at an angle to the horizontal ranging from 30 ° to 60 °. The staff rotates the operating handle 860, so that the rotating shaft 820 rotates, and then drives the second connecting shaft 830 to rotate, because one end of the driving rod 840 is hinged to the second connecting shaft 830 and the other end is hinged to the sector plate 810, the driving rod 840 rotates along with the second connecting shaft 830 and drives the sector plate 810 to rotate, the first connecting shaft 610 rotates along with the sector plate 810, and because the scraper 600 is fixedly connected with the first connecting shaft 610, the purpose of adjusting the angle of the scraper 600 is achieved. The staff can adjust the angle of the scraper 600 according to the running speed of the paper machine or the moisture of the paper, and the like, until the scraper 600 is adjusted to the optimal angle, and the problem of paper rolling of the guide roll 200 and the return roll 300 is solved.

Then, the end of the driving rod 840 far away from the connecting shaft II 830 is provided with a connecting hole I, the sector plate 810 is provided with a mounting hole 811, and a connecting piece 870 is inserted into the mounting hole 811 and the connecting hole I to connect the driving rod 840 and the sector plate 810. The connecting member 870 is a screw and is locked with a nut such that the screw cannot slide in the mounting hole 811, that is, the end of the driving lever 840 is fixed relative to the position of the sector plate 810, but the end of the driving lever 840 can rotate around the screw. The end portion of the driving rod 840 close to the second connecting shaft 830 is provided with a second connecting hole, one end of the second connecting shaft 830 far away from the rotating shaft 820 is provided with a connecting portion 831, and the connecting portion 831 of the second connecting shaft 830 is inserted into the second connecting hole, so that the position of the end portion of the driving rod 840 and the position of the connecting portion 831 are relatively fixed, and the end portion of the driving rod 840 can rotate around the connecting portion 831.

In addition, the mounting hole 811 is a kidney-shaped hole, the position of the end part of the driving rod 840 in the mounting hole 811 is adjusted, the swing angle range of the fan-shaped plate 810 can be adjusted due to the change of the position of the driving rod 840 on the fan-shaped plate 810, the rotating angle range of the connecting shaft I610 is further changed, and the angle adjusting range of the scraper 600 is changed due to the fixed connection of the scraper 600 and the connecting shaft I610.

Finally, locking member 850 has a screw handle 851 and a threaded portion 852, which threaded portion 852 can pass through sector plate 810 and abut its end against holder 700. The end of the threaded portion 852 is provided with an anti-slip layer, which may be made of a material having a relatively high coefficient of friction, such as rubber. By rotating the screw handle 851, the sector plate 810 can be locked to the holder 700, and the sector plate 810 is prevented from rotating.

The above-described embodiments can be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It should be noted that, in the description of the present application, it should be noted that the terms "upper end", "lower end" and "bottom end" indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the product of the application is usually placed in when the product of the application is used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Also, the terms "comprises," "comprising," or any other variation thereof, 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. Without further limitation, an element defined by the phrase "comprising a …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a paper machine turn-around roller is with preventing pressing from both sides package and puts, sets up on workstation (900), its characterized in that: including fixed setting two door type frame (100) on workstation (900), rotate connect in guide roll (200) between door type frame (100), locate guide roll (200) below and with door type frame (100) rotate return roller (300) of connecting, loop through net blanket (400), the fixed connection of guide roll (200) and return roller (300) are in fixing base (700), detachable connection on door type frame (100) are in between fixing base (700) are in order to be used for preventing that the paper is drawn into scraper (600) in return roller (300), scraper (600) through connecting axle (610) with fixing base (700) are connected.

2. The anti-pinch device for the return roll of the paper machine as claimed in claim 1, characterized in that: the rubber layer is bonded on the edge of the scraper (600).

3. The anti-pinch device for the return roll of the paper machine as claimed in claim 1, characterized in that: the scraper angle adjusting mechanism is characterized by further comprising an angle adjusting mechanism (800) connected to the fixing seat (700) and used for adjusting the angle of the scraper (600), wherein the angle adjusting mechanism comprises a fan-shaped plate (810) fixedly connected with the first connecting shaft (610), a rotating shaft (820) rotatably connected with the fixing seat (700), a second connecting shaft (830) fixedly connected with the rotating shaft (820), and a driving rod (840) with one end hinged to the fan-shaped plate (810) and the other end hinged to the second connecting shaft (830).

4. The anti-pinch device for the return roll of the paper machine as claimed in claim 3, characterized in that: the fan-shaped plate (810) is provided with a mounting hole (811), a first connecting hole is formed in the end portion, far away from the second connecting shaft (830), of the driving rod (840), and a connecting piece (870) is inserted into the mounting hole (811) and the first connecting hole and used for connecting the driving rod (840) and the fan-shaped plate (810).

5. The anti-pinch device for the return roll of the paper machine as claimed in claim 4, characterized in that: the locking piece (850) is detachably connected to the sector plate (810), and the sector plate (810) can be locked on the fixed seat (700) by the locking piece (850).

6. The anti-pinch device for the return roll of the paper machine as claimed in claim 5, characterized in that: the locking piece (850) is provided with a screwing handle (851) and a threaded part (852), and the end part of the threaded part (852) is provided with an anti-slip layer.

7. The anti-pinch device for the return roll of the paper machine as claimed in claim 3, characterized in that: and an operating handle (860) is arranged at one end of the rotating shaft (820) far away from the second connecting shaft (830).

8. The anti-pinch device for the return roll of the paper machine as claimed in claim 1, characterized in that: and the workbench (900) is connected with a net driving roller (500) positioned below the turn-back roller (300).

9. The anti-pinch device for the return roll of the paper machine as claimed in claim 1, characterized in that: the scraper (600) is fixedly connected with a connecting plate (620), a fixing plane (611) connected with the connecting plate (620) is arranged on the first connecting shaft (610), and the connecting plate (620) is connected with the first connecting shaft (610) through screws.

10. The anti-pinch device for the return roll of the paper machine as claimed in claim 9, characterized in that: the cross section of the connecting plate (620) is T-shaped.

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