CN212682247U - Coiled material guider - Google Patents

Abstract

The utility model relates to a coiled material guiding device, which comprises a punch working platform, wherein one side of a feed inlet of the punch working platform is fixedly connected with a frame, and two groups of guide rollers are arranged on the frame; a sliding groove is formed in the rack, a first sliding rail is formed in the sliding groove, two groups of idler wheels are arranged at the lower ends of the two groups of guide rollers, and the idler wheels are clamped and rolled in the first sliding rail; the two groups of guide rollers are provided with pressure rods; the sliding groove is provided with a second sliding rail which is positioned above the first sliding rail; the two groups of guide rollers are rotatably connected with rotating wheels which are clamped with the second sliding rail to roll; the upper ends of the two groups of guide rollers are provided with clamping mechanisms, and the upper ends of the two groups of guide rollers are also provided with unlocking mechanisms. The operation of adjusting the distance between the two groups of guide rollers is simplified, and a user can conveniently and frequently adjust the distance between the two groups of guide rollers according to the width of the coiled material.

Description

Coiled material guider

Technical Field

The utility model belongs to the technical field of coil stock pay-off technique and specifically relates to a coiled material guider is related to.

Background

In the existing metal coil processing field, in order to save space and cost, thick plate metal (the plate thickness is 0.3-0.6 mm) materials are all coiled, transported and stored; therefore, the main mechanism steps of the metal coil production and processing line are that the metal coil is uncoiled, leveled and finally stamped; the processing of the metal coiled material is widely applied to the mechanical manufacturing industries of automobiles, electrical appliances, stainless steel products and the like. During the processing of the metal coil, the feeding of the metal coil needs to be guided.

Current coiled material guider includes the frame, and vertical just to being provided with two sets of guide rolls in the frame, and horizontal migration can be done to two sets of guide rolls along the direction of feed of perpendicular to coiled material, when two sets of guide rolls removed to pressing from both sides tight coiled material, fixes two sets of guide rolls in the frame through the bolt on the rotatory guide roll for the coiled material can be along given direction feeding under the effect of two sets of guide rolls.

The above prior art solutions have the following drawbacks: because the two groups of guide rollers are fixed by screwing the bolts, and the metal coiled material is required to be frequently replaced by coiled materials with different widths in the processing process of the metal coiled material, the bolts are required to be frequently and repeatedly screwed, so that the adjustment of the distance between the two groups of guide rollers is troublesome, and the labor intensity is high, therefore, the technical scheme has an improvement space.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a coiled material guider has simplified the operation of adjusting distance between two sets of guide rolls, and convenient to use person carries out frequent adjustment to the distance between two sets of guide rolls according to the width of coiled material.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a coiled material guiding device comprises a punch working platform, wherein a rack is fixedly connected to one side of a feeding hole of the punch working platform, two groups of guiding rollers are vertically arranged on the rack in a right-facing manner, and the sliding directions of the two groups of guiding rollers are perpendicular to the feeding direction of coiled materials; the machine frame is provided with a sliding chute, the length direction of which is vertical to the feeding direction of coiled materials, the sliding chute is horizontally provided with first sliding rails on two side walls opposite to the length direction, the lower ends of two groups of guide rollers are respectively provided with two groups of idler wheels with vertical axes, and the idler wheels are respectively clamped and rolled in the first sliding rails; the two groups of guide rollers are all inserted with compression bars for compressing the rollers in a penetrating manner along the axes of the guide rollers; the two side walls of the sliding groove, which are opposite to each other in the length direction, are also horizontally provided with second sliding rails, and the second sliding rails are positioned above the first sliding rails; two groups of guide rollers are rotatably connected with rotating wheels with vertical axes at one side of two side walls which are opposite to the sliding groove in the length direction, and the rotating wheels are clamped with the second sliding rail to roll; the guide roll with same two sets of the guide roll be provided with flexible post between the gyro wheel, two sets of the upper end of guide roll all is provided with the chucking mechanism that the restriction depression bar moved up, and is two sets of the guide roll upper end still is provided with the release mechanism who removes the restriction of chucking mechanism to the depression bar.

Through adopting above-mentioned technical scheme, two sets of guide rolls can move along with coiled material feeding direction vertically direction through the gyro wheel for the width of the coiled material that two sets of guide rolls can be carried as required and adjust, and rolling mode is littleer than the frictional force that gliding mode received moreover, makes the removal of two sets of guide rolls lighter. After the position of the guide roller is adjusted, the two groups of rollers are limited by pressing the pressing rod to move downwards until the lower end of the pressing rod abuts against the two groups of rollers on the same guide roller; the second sliding rail for the rotating wheel to roll plays a role in limiting the rotating wheel in the vertical direction due to the fact that the axis of the rotating wheel is vertically arranged, and therefore the guide roller which is rotationally connected with the rotating wheel is limited to move in the vertical direction; when the rubber block moves downwards to abut against the roller, the telescopic column can be pushed to extend, so that the roller is pressed downwards by the rubber block to abut against the first sliding rail, the pressure is increased to increase the friction force, and the position of the guide roller is limited. Then the position of the pressure lever is fixed through a clamping mechanism, so that the rubber block keeps the limiting state of the two groups of rollers; when the distance between the two groups of guide rollers needs to be adjusted again, the limiting of the two groups of clamping mechanisms on the two groups of guide rollers is relieved through the unlocking mechanism, so that the positions of the two groups of guide rollers can be adjusted again. Compare in current mode of screwing up through the bolt, this technical scheme has simplified the operation of adjusting distance between two sets of guide rolls, and convenient to use person carries out frequent adjustment to the distance between two sets of guide rolls according to the width of coiled material.

The present invention may be further configured in a preferred embodiment as: chucking mechanism includes fixed connection and is in locating piece on the guide roll top surface, the locating hole has been seted up towards one side of depression bar to the stopper, sliding connection has the wedge in the locating hole, the inclined plane of wedge is seted up the wedge is kept away from the one end of locating hole, just the slope of wedge is towards keeping away from the direction of frame sets up, the depression bar side with the position that the wedge corresponds seted up be used for with the wedge carries out the wedge hole of joint.

Through adopting above-mentioned technical scheme, the inclined plane that the wedge was seted up towards the one end of depression bar makes the wedge change in the joint advance the wedge downthehole, realizes the joint cooperation of wedge and wedge hole, plays the restriction effect to the up removal of depression bar.

The present invention may be further configured in a preferred embodiment as: release mechanism is including seting up the locating piece is kept away from one side and the length direction orientation of frame the constant head tank of depression bar, the constant head tank link up the locating hole, one side fixedly connected with shifting block that the wedge is close to the constant head tank, the constant head tank is stretched out to the other end of shifting block.

By adopting the technical scheme, the wedge-shaped block can be clamped into the wedge-shaped hole or separated from the wedge-shaped hole by shifting the shifting block; when the position of two sets of guide rolls need be adjusted once more, only need stir the shifting block and make wedge and wedge hole alternate segregation, the depression bar can reset under the effect of spring, drives the rubber block upward movement for the rubber block breaks away from the tight state of supporting to the gyro wheel, and then makes the position of two sets of guide rolls can be adjusted once more.

The present invention may be further configured in a preferred embodiment as: two groups of stop blocks are arranged on the outer peripheral surface of the upper end of the pressure rod, and springs are arranged between the upper end surface of the guide roller and the two groups of stop blocks on the same guide roller; when the lower end of the pressure lever is tightly propped against the two groups of rollers on the same guide roller, the spring is in a compressed state.

By adopting the technical scheme, after a user releases the limitation of the clamping mechanism on the movement of the pressure rod in the axial direction of the pressure rod through the unlocking mechanism, the pressure rod can drive the rubber block to move upwards to reset under the action of the elastic force of the spring; at this time, the rubber block is separated from the restriction of the roller, so that the positions of the two groups of guide rollers can be adjusted again.

The present invention may be further configured in a preferred embodiment as: the lower end of the pressure lever is provided with a rubber block.

Through adopting above-mentioned technical scheme, depression bar downstream drives the rubber piece downstream, supports two sets of gyro wheels on tightly same guide roll until the rubber piece, because the material of rubber piece is coarser, itself just has great frictional force, can provide great resistance for the rotation of gyro wheel, has restricted the rotation of gyro wheel better.

The present invention may be further configured in a preferred embodiment as: two groups of limiting blocks fixedly connected with the guide roller are further arranged between the guide roller and the two groups of idler wheels on the same guide roller, and the two side walls of the sliding groove, which are opposite to each other along the length direction, are in surface contact with the two groups of limiting blocks respectively.

Through adopting above-mentioned technical scheme, because be the face contact between stopper and the spout, so the stopper can only slide along the spout, can not follow the spout and change. Make two sets of guide rolls at the in-process that removes, the direction of removal remains the length direction unanimity with the spout all the time, can not produce the rotation around self axis, and then makes the removal of two sets of guide rolls more stable.

The present invention may be further configured in a preferred embodiment as: and the peripheral surfaces of the two groups of guide rollers are sleeved with a roller, and the roller is rotationally connected with the guide rollers.

Through adopting above-mentioned technical scheme, the coiled material can drive the cylinder and rotate at the in-process of carrying, has reduced the friction between the both sides that guide roll and coiled material are close to the guide roll, and then reduces the wearing and tearing of coiled material and guide roll.

The present invention may be further configured in a preferred embodiment as: still the horizontal rotation is connected with a plurality of auxiliary rollers in the frame, and is a plurality of the axis of auxiliary roller all is perpendicular with the direction of feed of coiled material, and is a plurality of the auxiliary roller distributes along the direction of feed of coiled material two sets of the both sides of guide roll.

Through adopting above-mentioned technical scheme, the auxiliary roller can lift the coiled material to suitable height that carries out processing with punching press work platform for the coiled material gets into punching press work platform better and processes. Because the auxiliary roller is rotationally connected with the frame, the friction between the coiled material and the auxiliary roller in the conveying process is reduced.

To sum up, the utility model discloses following beneficial effect has:

1. the two groups of guide rollers can slide on the rack through the matching of the idler wheels which are rotatably connected with the lower ends of the two groups of guide rollers and the first sliding rail which is arranged on the sliding chute; through the matching of a limiting mechanism consisting of the pressure lever and the rubber block, the baffle and the spring, a user can press the pressure lever to tightly support the rubber block, and the pressure lever can reset when the user loosens the pressure lever; through the cooperation of the clamping mechanism and the unlocking mechanism, the rubber block can keep the limiting state of the roller and can be separated from the limiting state of the roller; the operation of adjusting the distance between the two groups of guide rollers is simplified, and a user can conveniently and frequently adjust the distance between the two groups of guide rollers according to the width of the coiled material;

2. through the rollers sleeved on the two groups of guide rollers, the friction between the coiled material and the two groups of guide rollers is greatly reduced in the process of moving the coiled material on the rack; through a plurality of auxiliary rollers which are rotatably connected to the rack, the friction between the coiled material and the auxiliary rollers in the conveying process of the coiled material on the rack can be reduced; so that the web can better enter the press working table in a given direction.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a sectional view of the spacing mechanism, the clamping mechanism and the unlocking mechanism in the present embodiment;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an enlarged view at B in fig. 2.

Reference numerals: 1. a frame; 11. a guide roller; 111. a pressure lever; 1111. a wedge-shaped hole; 1112. a stopper; 112. a rubber block; 113. a roller; 114. a spring; 115. a limiting block; 116. positioning blocks; 1161. positioning holes; 1162. a wedge block; 1163. shifting blocks; 1164. positioning a groove; 117. a jack; 118. a rotating wheel; 119. a telescopic column; 12. a drum; 13. an auxiliary roller; 2. a chute; 21. a first slide rail; 22. a second slide rail; 3. and (4) rolling the material into a roll.

Detailed Description

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

As shown in fig. 1 and 2, the utility model discloses a coiled material guiding device, which comprises a frame 1 fixedly connected to one side of a feeding port of a punch press working platform, wherein two groups of guide rollers 11 are vertically arranged on the frame 1, and the two groups of guide rollers 11 are arranged on two sides of a coiled material 3 along the feeding direction of the coiled material 3 to guide and limit the coiled material 3; both sets of guide rollers 11 are slidable in a direction perpendicular to the feeding direction of the web 3. The outer peripheral surfaces of the two groups of guide rollers 11 are sleeved with rollers 12, and bearings fixed with the outer peripheral surfaces of the guide rollers 11 are arranged between the guide rollers 11 and the rollers 12. A plurality of auxiliary rollers 13 with horizontal axes and vertical axes to the feeding direction of the coiled material 3 are also rotatably connected to the frame 1, and the plurality of auxiliary rollers 13 are distributed on two sides of the two groups of guide rollers 11 along the feeding direction of the coiled material 3. The coil 3 is covered on a plurality of auxiliary rollers 13, and the lower end of the coil 3 abuts on the upper ends of the auxiliary rollers 13 by the gravity of the coil 3 itself. A coil conveying device (not shown in the figure) which is used for uncoiling the coil 3 and conveying the coil 3 to the feed inlet of the frame 1 is arranged on one side of the feed inlet of the frame 1, the conventional coil conveying device can be an uncoiler, a coil flattening device (not shown in the figure) which is used for flattening the coil 3 and conveying the coil 3 to the stamping working platform is further arranged on one side of the frame 1, which is close to the stamping working platform, and the conventional coil flattening device can be a leveling machine.

As shown in fig. 2 and 3, the frame 1 is provided with a chute 2 directly below the two sets of guide rollers 11, the length direction of the chute 2 is perpendicular to the feeding direction of the coil stock, and the two sets of guide rollers 11 slide in the chute 2. The chute 2 is provided with a first slide rail 21 along two opposite side walls of the length direction, and the length direction of the first slide rail 21 is parallel to the length direction of the chute 2. The lower extreme of two sets of guide rolls 11 all rotates and is connected with two sets of gyro wheels 113, and the axis of rotation of two sets of gyro wheels 113 on same guide roll 11 all is parallel with the axis of this guide roll 11, and two sets of gyro wheels 113 on same guide roll 11 all follow the axis symmetry of this guide roll 11, and two sets of gyro wheels 113 on the same guide roll 11 roll in two sets of first slide rails 21 respectively.

As shown in fig. 2 and fig. 3, a limiting block 115 fixedly connected to the guide roller 11 is disposed between the lower end surface of the same guide roller 11 and the two sets of rollers 113 on the guide roller 11, the limiting block 115 is a rectangular block, and two side walls of the chute 2 along the length direction are respectively attached to one side surface of the two sets of limiting blocks 115, which is far away from each other. The two side walls of the chute 2 opposite to the length direction are also horizontally provided with second slide rails 22, the length direction of the second slide rails 22 is parallel to the length direction of the first slide rails 21, and the second slide rails 22 are positioned above the first slide rails 21; two sets of stopper 115 on same guide roll 11 are close to the equal runner 118 that is connected with the axis is vertical all to rotate in one side of the just right both sides wall in length direction of spout 2, runner 118 with second slide rail 22 joint rolls. The telescopic columns 119 with vertical axes are fixedly connected to the lower ends of the two sets of limiting blocks 115 on the same guide roller 11, the telescopic columns 119 can stretch along the axes, and one ends, far away from the limiting blocks 115, of the telescopic columns 119 are rotatably connected with the rollers 113.

As shown in fig. 2 and 4, two groups of guide rollers 11 are vertically provided with insertion holes 117 in a penetrating manner, and the axes of the insertion holes 117 are collinear with the axes of the guide rollers 11; the cylindrical pressing rod 111 is inserted into the insertion hole 117, and the pressing rod 111 is in insertion fit with the insertion hole 117. The lower end of the pressure lever 111 extends out of the guide roller 11, and a rubber block 112 (shown in fig. 3) is fixedly bonded at the lower end of the pressure lever 111; when the pressing rod 111 slides downwards along the insertion hole 117, the rubber block 112 can simultaneously abut against the upper end surfaces of two groups of rollers 113 (shown in fig. 3) on the same guide roller 11. The upper end of the pressure lever 111 also extends out of the guide roller 11, and two groups of stop blocks 1112 are fixedly connected to the outer peripheral surface of one section of the pressure lever 111 extending out of the upper end surface of the wire guide roller; the two groups of stop blocks 1112 are rectangular blocks, and the two groups of stop blocks 1112 are symmetrically arranged along the axis of the pressure rod 111; springs 114 are arranged between the two sets of stoppers 1112 on the same guide roller 11 and the upper end surface of the guide roller 11, one end of each spring 114 is fixed to the lower end of the stopper 1112, and the other end is fixed to the upper end of the guide roller 11. When the rubber block 112 on the same guide roller 11 abuts against two sets of rollers 113, the spring 114 on the guide roller 11 is in a compressed state. The two groups of guide rollers 11 are also provided with clamping mechanisms and unlocking mechanisms, and the clamping mechanisms limit the upward movement of the pressure rod 111, so that the pressure rod 111 keeps a limited state of sliding of the two groups of guide rollers 11; the unlocking mechanism can release the restriction state of the pressing lever 111 by the chucking mechanism.

As shown in fig. 2 and 4, the clamping mechanism includes a positioning block 116, the positioning block 116 is fixedly connected to the upper end surface of the guide roller 11, a positioning hole 1161 is horizontally formed in the positioning block 116, and the length direction of the positioning hole 1161 points to the pressing rod 111. A wedge block 1162 is slidably connected in the positioning hole 1161, one end of the wedge block 1162, which is provided with an inclined surface, extends out of the positioning hole 1161, and the inclined surface on the wedge block 1162 faces the end away from the rack 1. The outer peripheral surface of the pressure lever 111 is provided with a wedge-shaped hole 1111 at a position corresponding to the wedge block 1162, and the shape of the wedge block 1162 is matched with the shape of the wedge-shaped hole 1111. When the pressing rod 111 on the same guide roller 11 is moved downwards until the rubber block 112 abuts against the two sets of rollers 113 on the guide roller 11, the wedge block 1162 is just clamped into the wedge hole 1111.

As shown in fig. 2 and 4, the unlocking mechanism includes a positioning groove 1164 horizontally formed on the upper end surface of the positioning block 116, the length direction of the positioning groove 1164 is parallel to the length direction of the positioning hole 1161, and the positioning groove 1164 is through with the positioning hole 1161. One side of the wedge-shaped block 1162 close to the positioning groove 1164 is fixedly connected with a shifting block 1163, the other end of the shifting block 1163 extends out of the positioning groove 1164, and the wedge-shaped block 1162 and the wedge-shaped hole 1111 can be in insertion fit or separated from each other by shifting the shifting block 1163.

The working conditions and the implementation principle of the embodiment are as follows:

firstly, covering a coiled material 3 coming out of a coiled material conveying device above an auxiliary roller 13 on a frame 1, then adjusting the feeding direction of the coiled material 3 to a position suitable for a stamping working platform to work, and then moving two groups of guide rollers 11 to enable the two groups of guide rollers 11 to be respectively abutted against two sides of the coiled material 3 along the feeding direction; at this time, the pressing rods 111 on the two groups of guide rollers 11 are pressed downwards respectively, so that the rubber blocks 112 on the same guide roller 11 are respectively abutted against the two groups of rollers 113 on the guide roller 11, and the telescopic rods are extended, so that the two groups of rollers 113 on the same guide roller 11 are respectively abutted against the first slide rail 21; and then the shifting block 1163 is shifted towards the direction close to the pressure lever 111, so that the wedge block 1162 is in clamping fit with the wedge hole 1111, and the relative sliding between the two groups of guide rollers 11 and the rack 1 is limited. Then, stretch into coiled material exhibition paper-back edition with coiled material 3's one end that is close to punching press work platform again and put, coiled material 3 can move towards appointed direction, by stamping forming in punching press work platform.

When the coiled materials 3 with different widths need to be replaced, the shifting block 1163 is only required to be shifted in the direction away from the pressing rod 111, so that the wedge block 1162 and the wedge hole 1111 are separated from each other, and at the moment, under the action of the elastic force of the spring 114, the pressing rod 111 can drive the rubber block 112 to move upwards for resetting; the rubber block 112 releases the tight limit state of the roller 113, and the two groups of guide rollers 11 can slide in the chute 2 to adapt to the coiled materials 3 with different widths.

When the rubber block 112 on the same guide roller 11 abuts against the two sets of rollers 113 on the guide roller 11, the spring 114 on the guide roller 11 is in a compressed state, and the pressing rod 111 drives the rubber block 112 to reset due to the elastic force of the spring 114.

Two sets of stopper 115 are the rectangular block, and the one side that keeps away from each other of two sets of stopper 115 on same guide roll 11 is laminated with the both sides face that spout 2 just right in length direction respectively, and stopper 115 is spacing to guide roll 11's moving direction, makes guide roll 11 can not take place around the rotation of self axis in the in-process that removes in spout 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A coiled material guiding device comprises a punch working platform, wherein one side of a feeding hole of the punch working platform is fixedly connected with a rack (1), and the coiled material guiding device is characterized in that two groups of guide rollers (11) are vertically and oppositely arranged on the rack (1), and the sliding directions of the two groups of guide rollers (11) are vertical to the feeding direction of a coiled material (3); the machine frame (1) is provided with a sliding chute (2) with the length direction perpendicular to the feeding direction of the coiled material (3), two side walls of the sliding chute (2) opposite to the length direction are both horizontally provided with a first sliding rail (21), the lower ends of two groups of guide rollers (11) are both provided with two groups of rollers (113) with vertical axes, and the rollers (113) are both clamped and rolled in the first sliding rail (21); two groups of guide rollers (11) are all inserted with compression rods (111) used for compressing the rollers (113) along the axis of the guide rollers in a penetrating manner; two side walls of the sliding groove (2) opposite to the length direction are also horizontally provided with second sliding rails (22), and the second sliding rails (22) are positioned above the first sliding rails (21); two groups of guide rollers (11) are rotatably connected with rotating wheels (118) with vertical axes at one side of two opposite side walls of the sliding chute (2) in the length direction, and the rotating wheels (118) are clamped with the second sliding rail (22) to roll; the utility model discloses a take-up roller, including guide roll (11) with same two sets of guide roll (11) be provided with flexible post (119) between gyro wheel (113), two sets of the upper end of guide roll (11) all is provided with the chucking mechanism of restriction depression bar (111) up-moving, and is two sets of the guide roll upper end still is provided with the release mechanism who relieves the restriction of chucking mechanism to depression bar (111).

2. The coil guiding device as claimed in claim 1, wherein the clamping mechanism includes a positioning block (116) fixedly connected to the top surface of the guide roller (11), a positioning hole (1161) is formed in the positioning block (116) towards one side of the pressing rod (111), a wedge block (1162) is slidably connected to the positioning hole (1161), an inclined plane of the wedge block (1162) is formed in the inclined plane of the wedge block (1162) away from one end of the positioning hole (1161), the inclined plane of the wedge block (1162) is arranged towards the direction away from the rack (1), and a wedge hole (1111) used for being clamped with the wedge block (1162) is formed in the position corresponding to the side surface of the pressing rod (111) and the wedge block (1162).

3. The coil guiding device as claimed in claim 2, wherein a positioning groove (1164) facing the pressing rod (111) in a length direction is formed in one side of the positioning block (116) away from the frame (1), the positioning groove (1164) penetrates through the positioning hole (1161), a shifting block (1163) is fixedly connected to one side of the wedge-shaped block (1162) close to the positioning groove (1164), and the other end of the shifting block (1163) extends out of the positioning groove (1164).

4. The web guide apparatus as claimed in claim 1, wherein two sets of stoppers (1112) are provided on the outer peripheral surface of the upper end of the press rod (111), and a spring (114) is provided between the upper end surface of the guide roller (11) and the two sets of stoppers (1112) on the same guide roller (11); when the lower end of the pressure lever (111) abuts against two groups of rollers (113) on the same guide roller (11), the spring (114) is in a compressed state.

5. The web guide according to claim 1, wherein the lower end of the plunger (111) is provided with a rubber block (112).

6. The coil guiding device as claimed in claim 1, wherein two sets of limiting blocks (115) fixedly connected with the guiding roller (11) are further arranged between the guiding roller (11) and two sets of rollers (113) on the same guiding roller (11), and two side walls of the chute (2) opposite to each other in the length direction are respectively in surface contact with the two sets of limiting blocks (115).

7. The web guide apparatus according to claim 1, wherein a roller (12) is sleeved on the outer peripheral surface of each of the two sets of guide rollers (11), and the rollers (12) are rotatably connected with the guide rollers (11).

8. A web guide apparatus as claimed in claim 1, wherein a plurality of auxiliary rollers (13) are rotatably and horizontally connected to said frame (1), the axes of said plurality of auxiliary rollers (13) being perpendicular to the feeding direction of the web (3), said plurality of auxiliary rollers (13) being arranged on both sides of said two sets of guide rollers (11) in the feeding direction of the web (3).

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