Deviation correcting device for ribbon-shaped viscoelastic material and deviation correcting method thereof

Abstract

The strip-shaped viscoelastic material deviation rectifying device of the present application is installed between the upstream conveying line and the downstream conveying line, and comprises a guide roller, a rotating support, a transverse rotating shaft, a rotating support base, a horizontal moving platform, a vertical rotating shaft, a rotating fixed base, a cross shaft and a mounting plate. Two rotating fixed bases are fixed on the mounting plate, the two ends of the cross shaft are installed in the two rotating fixed bases through bearings and rotate around the rotating fixed bases, the other end of the cross shaft is installed in the vertical rotating shaft on one side of the horizontal moving platform through a bearing, the rotating support base is installed on the other side of the horizontal moving platform, the transverse rotating shaft is installed on the rotating support base through a bearing and passes through the rotating support base, the rotating support is installed on the transverse rotating shaft, the guide roller is installed on the left and right ends of the rotating support, the guide roller is perpendicular to the conveying direction of the upstream conveying line and the downstream conveying line, and the initial position of the guide roller is in the same plane as the conveying surface of the upstream conveying line and the downstream conveying line, and the vertical rotating shaft, the transverse rotating shaft and the cross shaft are driven to rotate by motors respectively.

Description

Technical Field

[0001] This invention relates to the field of material conveying, and more particularly to a method and apparatus for conveying and correcting the deviation of strip viscoelastic materials, such as natural rubber products or flexible chemical materials, on continuous conveying lines. Background Technology

[0002] Strip-shaped viscoelastic materials, most commonly thermoplastic products made of natural rubber, have a highly viscous surface and are self-adhesive. Once self-adhesive, they cannot be separated, or tearing defects appear on the bonded surfaces after separation. They are often adhered to the conveyor surface of conveyors. These viscoelastic products also have strong elasticity and are easily deformed by tensile and compressive stresses. In conveying processes, the tensile stress in most cases is within the elastic limit of the material, and it can generally return to its original shape after being stretched. However, due to its high surface viscosity, it often cannot withstand large compressive stresses in industrial production. Under the action of external forces such as pushing and pressing, this viscoelastic material is prone to local compression wrinkles, which can then adhere to adjacent wrinkled surfaces and become inseparable, rendering it unusable. Alternatively, it may adhere even more firmly to the supporting surface, making it difficult to unload the material at the conveyor's discharge end.

[0003] In the production of shock-absorbing and cushioning products, thermo-extruded films possess high viscoelasticity, similar to non-Newtonian fluids, and are typically adhered to the conveyor surface for forward transport. To allow the film to cool and solidify within a limited space, a multi-layer Z-shaped conveyor system is often used for cooling, thereby controlling the length of a single-layer conveyor line. However, unevenness on the conveyor surface and the back-and-forth flow between multiple conveyors mean that the rubber sheet cannot be precisely aligned with the conveyor center on each conveyor. If the rubber sheet is not corrected on the conveyor line, it will collide and be squeezed against the conveyor edges. This can result in the rubber sheet thickening at the edges and becoming unusable, or even overlapping and sticking together, jamming the conveyor and causing a shutdown.

[0004] In the conveying of strip viscoelastic materials, traditional methods of guiding with fences or baffles are no longer suitable. Because the conveyed material is highly adhesive, it often adheres to the conveying surface. If the strip viscoelastic material is not separated from the conveying surface before correction, the material deviating to the larger side will be too long to be straightened quickly. During correction, the length will exceed that of the side with the negative deviation, resulting in "V"-shaped wrinkles on the side with the larger deviation, causing the material to stick together and become unusable. Currently, in actual production, factories mainly use manual pulling and separating, manually moving the rubber strip left and right to correct deviation. This manual correction method requires a large number of personnel at each entrance, and the conveying equipment can only operate in low-speed mode; otherwise, operators are easily injured by the rubber strip being caught in the equipment, hindering production efficiency and compromising production safety.

[0005] Therefore, we have conducted extensive research on the belt viscoelastic rubber conveying and correction method. Under the premise that the rubber can be guided and corrected in a timely manner, we ensure that the rubber is not squeezed and deformed by the guiding mechanism, reduce manual labor or achieve fully unmanned automated correction, avoid mechanical injury to operators, increase the conveying speed by several times, and improve production efficiency. Summary of the Invention

[0006] The present invention aims to solve the problem mentioned in the background art that the adhesion between viscoelastic materials and the conveying surface on continuous conveying lines is large, making it impossible to directly guide and correct deviation by using external force to push or pull. Instead, it provides a method and device for correcting deviation of materials during the conveying process, especially when the conveyed material is a strip-shaped viscoelastic material and there is a certain adhesion between the material and the conveying surface.

[0007] To achieve the purpose of this invention, the following technical solution is adopted:

[0008] This invention discloses a belt-shaped viscoelastic material conveying and correction device, which is installed between an upstream conveyor line and a downstream conveyor line. The correction device includes: a guide roller, a rotating bracket, a transverse rotating shaft, a rotating support, a transverse platform, a vertical rotating shaft, a rotating fixed support, a cross shaft, and a mounting plate. Two rotating fixed supports are fixed to the mounting plate. The two ends of the cross shaft are mounted on the two rotating fixed supports via bearings and rotate around the rotating fixed supports. The other end of the cross shaft is mounted in the vertical rotating shaft on one side of the transverse platform via a bearing. A rotating support is installed on the other side of the transverse platform. The transverse rotating shaft is mounted on the rotating support via bearings and passes through the rotating support. The rotating bracket is mounted on the transverse rotating shaft. The guide roller is mounted at both ends of the rotating bracket. The guide roller is perpendicular to the conveying direction of the upstream and downstream conveyor lines, and its initial position is in the same plane as the conveying surfaces of the upstream and downstream conveyor lines. The vertical rotating shaft, transverse rotating shaft, and cross shaft are each driven to rotate by a motor.

[0009] The present invention provides a belt-shaped viscoelastic material conveying and correction device, wherein: it further includes: two limiting blocks, one of which is installed on the transverse platform below both ends of the rotating support.

[0010] The present invention provides a belt-shaped viscoelastic material conveying and correction device, wherein: the vertical rotating shaft is a hollow shaft, and the other end of the cross shaft is mounted inside the vertical rotating shaft through a bearing.

[0011] The present invention discloses a belt-shaped viscoelastic material conveying and correction device, wherein: the correction device further includes: a controller, a first detector, a second detector, a third detector, and a fourth detector, the first detector, the second detector, the third detector, and the fourth detector are respectively placed above two opposite sides of the downstream conveyor line, the first detector and the fourth detector are respectively arranged opposite each other across the downstream conveyor line, the second detector and the third detector are downstream of the first detector and the fourth detector, and they are respectively arranged opposite each other across the downstream conveyor line, and the controller is connected to the first detector, the second detector, the third detector, the fourth detector, and three motors.

[0012] A method for correcting the conveying of a strip viscoelastic material using the conveying correction device of the present invention, wherein:

[0013] (a) Determining the deviation direction of a banded viscoelastic material

[0014] The distance X from the two opposite sides of the downstream conveyor line to the strip-shaped viscoelastic material is detected by the first and fourth detectors. A and X B When X A >X B When X is away from side A, the strip-shaped viscoelastic material moves away from side A; when X is away from side A... A <X B At that time, the strip-shaped viscoelastic material deviates towards side A;

[0015] (ii) Cross axis deflection

[0016] The cross-axis rotation causes the transverse platform to rotate upwards by 3-20° relative to the horizontal plane;

[0017] (III) Lateral axis deflection

[0018] The lateral rotation of the shaft raises the rotating support near the offset edge of the strip viscoelastic material; simultaneously, the distance X of the strip viscoelastic material from the two opposite edges of the downstream conveyor line is detected by the second and third detectors. A and X B If the deviation state of step (i) is still maintained, proceed to step (iv); if the deviation state of step (i) is changed, the horizontal axis is rotated in the opposite direction to the initial position, the cross axis is rotated in the opposite direction to the initial position, and the correction ends.

[0019] (iv) Vertical axis deflection

[0020] The vertical axis deflects, and the transverse platform rotates 3-20° relative to its initial position, causing the rotating support side closest to the offset edge of the strip viscoelastic material to continue rising; simultaneously, the distance X of the strip viscoelastic material from the two opposite edges of the downstream conveyor line is detected by the second and third detectors. A and XB If the deviation state of step three is still maintained, the horizontal axis is rotated in the opposite direction to the initial position, the cross axis is rotated in the opposite direction to the initial position, and the vertical axis is rotated in the opposite direction to the initial position. Then, steps (two) to (four) are repeated. If the deviation state of step (three) is changed, the horizontal axis is rotated in the opposite direction to the initial position, the cross axis is rotated in the opposite direction to the initial position, and the vertical axis is rotated in the opposite direction to the initial position. The correction ends.

[0021] A method for correcting the conveying of a strip viscoelastic material using the conveying correction device of the present invention, wherein:

[0022] The initial position of the transverse rotating shaft is such that the guide roller is parallel to the transverse platform; the initial position of the cross shaft is such that the transverse platform is parallel to the mounting plate; the initial position of the vertical rotating shaft is such that the line connecting the vertical rotating shaft and the transverse rotating shaft is parallel to the upstream and downstream conveyor lines.

[0023] The method and apparatus for correcting deviation of strip viscoelastic materials during the conveying process provided by this invention solves the problems of obstruction and guidance failure, material agglomeration, and edge collision and thickening in the traditional conveying process of strip viscoelastic materials. It reduces manual intervention for deviation correction, enables high-speed automated production, improves production efficiency, and reduces the safety hazards caused by manual operation.

[0024] The method and apparatus of this invention can effectively solve the problem of difficult guidance and correction of strip viscoelastic materials such as rubber when they are adhered to the conveyor surface within a limited space. Especially in some scenarios where rubber materials need to be stamped and cut, the stamping equipment requires the material to be centered at the inlet to ensure that the cutting waste is minimized and that the flat rubber sheet will not cause rebound deformation after cutting, so as to ensure the shape accuracy of the material processing.

[0025] Traditional methods employ low-speed conveying and manual intervention for deviation correction. Conveyor speeds are typically below 16 m / min, and if the rubber sheet bends significantly, the minimum speed can only be maintained at around 12 m / min. The proposed solution, based on this invention, replaces all manual deviation correction, achieving fully automated correction. It prevents material clumping and waste due to compression, maintains a maximum speed above 30 m / min, and significantly improves operational efficiency. This drastically reduces processing margins, cutting waste, and manual intervention for deviation correction, while also eliminating the risk of workers being injured by being caught in the conveyor equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a strip viscoelastic material conveying system;

[0027] Figure 2 This is a side view of a strip viscoelastic material conveying system;

[0028] Figure 3 A three-dimensional schematic diagram of a belt-shaped viscoelastic material conveying and correction device;

[0029] Figure 4 This is a schematic diagram of the rotation state of a guide roller in a web correction device.

[0030] Figure 5 A schematic diagram illustrating the lateral and rotational displacements generated by a correction device;

[0031] Figure 6 A schematic diagram illustrating the states of a correction device generating lifting, lateral, and rotational displacements;

[0032] Figure 7 This is a schematic diagram showing the offset dimensions of a strip-shaped viscoelastic material;

[0033] Figure 8 This is a schematic diagram of bias correction for a strip-shaped viscoelastic material;

[0034] Figure 9 This is a frontal schematic diagram of a belt-type viscoelastic material conveying and correction device. For clarity, the limit seat is not shown in this diagram.

[0035] Figure 10 This is a side view of a belt-shaped viscoelastic material conveying and correction device.

[0036] Figures 1 to 10 In the diagram: 1 is the upstream conveyor line; 2 is the correction device; 201 is the guide roller; 202 is the rotating support; 203 is the transverse rotating shaft; 204 is the rotating support; 205 is the transverse platform; 206 is the limit block; 207 is the vertical rotating shaft; 208 is the rotating fixed support; 209 is the limit seat; 210 is the cross shaft; 211 is the mounting plate; 3 is the downstream conveyor line; 4 is the deviation detection device; 401 is the first detector; 402 is the second detector; 403 is the third detector; 404 is the fourth detector; 5 is the material processing equipment; 501 is the material input port; 6 is the strip viscoelastic material. Detailed Implementation

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9As shown, the belt-shaped viscoelastic material conveying correction device of the present invention is installed between the upstream conveyor line 1 and the downstream conveyor line 3. The correction device 2 includes: a guide roller 201, a rotating bracket 202, a transverse rotating shaft 203, a rotating support 204, a transverse moving platform 205, a limiting block 206, a vertical rotating shaft 207, a rotating fixed support 208, a cross shaft 210, and a mounting plate 211. The two rotating fixed supports 208 are fixed on the mounting plate 211. The two ends of the cross shaft 210 are mounted on the two rotating fixed supports 208 by bearings and rotate around the rotating fixed supports 208. The other end of the cross shaft 210 is mounted in the vertical rotating shaft 207 on one side of the transverse moving platform 205 by bearings. The vertical rotating shaft 207 is a hollow shaft. The vertical rotating shaft 207 is mounted with bearings, and the other side of the transverse platform 205 is equipped with a rotating support 204. The transverse rotating shaft 203 is mounted on the rotating support 204 via bearings and passes through the rotating support 204. The rotating bracket 202 is mounted on the transverse rotating shaft 203. The guide rollers 201 are mounted at the left and right ends of the rotating bracket 202. The guide rollers 201 are perpendicular to the conveying directions of the upstream conveyor line 1 and the downstream conveyor line 3, and their initial positions are in the same plane as the conveying surfaces of the upstream conveyor line 1 and the downstream conveyor line 3. The vertical rotating shaft 207, the transverse rotating shaft 203, and the cross shaft 210 are driven to rotate by motors. Two limit blocks 206 are respectively mounted on the transverse platform 205 below both ends of the rotating bracket 202.

[0038] like Figure 1 As shown, the correction device 2 also includes a controller (not shown) and a deviation detection device 4. The deviation detection device 4 includes a first detector 401, a second detector 402, a third detector 403, and a fourth detector 404. The first detector 401, the second detector 402, the third detector 403, and the fourth detector 404 are respectively placed above two opposite sides of the downstream conveyor line 3. The first detector 401 and the fourth detector 404 are arranged opposite each other across the downstream conveyor line 3. The second detector 402 and the third detector 403 are downstream of the first detector 401 and the fourth detector 404. They are arranged opposite each other across the downstream conveyor line 3. The controller is connected to the first detector 401, the second detector 402, the third detector 403, the fourth detector 404, and three motors.

[0039] like Figures 4 to 7 As shown, the method for correcting the conveying of strip viscoelastic materials using the conveying correction device of the present invention includes:

[0040] (I) Determining the deviation direction of a banded viscoelastic material

[0041] The distance X between the strip-shaped viscoelastic material and the two opposite sides of the downstream conveyor line 3 is detected by the first detector 401 and the fourth detector 404.A and X B When X A >X B When X is away from side A, the strip-shaped viscoelastic material moves away from side A; when X is away from side A... A <X B At that time, the strip-shaped viscoelastic material deviates towards side A;

[0042] (ii) Cross axis 210 deflection

[0043] The cross axis 210 rotates, causing the transverse platform 205 to rotate upwards by 3-20° relative to the horizontal plane;

[0044] (III) Horizontal rotation axis 203 deflection

[0045] The lateral rotating shaft 203 rotates, causing the rotating support 202 side closest to the offset edge of the strip viscoelastic material to rise; simultaneously, the distance X of the strip viscoelastic material from the two opposite edges of the downstream conveyor line 3 is detected by the second detector 402 and the third detector 403. A and X B If the deviation state of step (i) is still maintained, proceed to step (iv); if the deviation state of step (i) is changed, the transverse axis 203 rotates in the opposite direction to the initial position, the cross axis 210 rotates in the opposite direction to the initial position, and the correction ends.

[0046] (iv) Vertical axis 207 deflection

[0047] The vertical shaft 207 deflects, and the transverse platform 205 rotates 3-20° relative to its initial position, causing the rotating support 202 side near the offset edge of the strip viscoelastic material to continue to rise; simultaneously, the distance X of the strip viscoelastic material from the two opposite edges of the downstream conveyor line 3 is detected by the second detector 402 and the third detector 403. A and X B If the deviation state of step three is still maintained, the horizontal axis 203 is rotated in the opposite direction to the initial position, the cross axis 210 is rotated in the opposite direction to the initial position, and the vertical axis 207 is rotated in the opposite direction to the initial position. Then, steps (two) to (four) are repeated. If the deviation state of step (three) is changed, the horizontal axis 203 is rotated in the opposite direction to the initial position, the cross axis 210 is rotated in the opposite direction to the initial position, and the vertical axis 207 is rotated in the opposite direction to the initial position. The correction ends.

[0048] The initial position of the transverse rotating shaft 203 is such that the guide roller 201 is parallel to the transverse platform 205; the initial position of the cross shaft 210 is such that the transverse platform 205 is parallel to the mounting plate 211; the initial position of the vertical rotating shaft 207 is such that the line connecting the vertical rotating shaft 207 and the transverse rotating shaft 203 is parallel to the upstream conveyor line 1 and the downstream conveyor line 3.

[0049] Reference Figure 1 The original conveyor production line consisted of an upstream conveyor line 1, a downstream conveyor line 3, and material processing equipment 5. The correction device 2 of this invention is placed between the upstream conveyor line 1 and the downstream conveyor line 3, as shown in the attached diagram. Figure 2 As shown, a certain distance L1 is set between the upstream and downstream conveyor lines, and the highest point of the correction device can be adjusted to be higher or lower than the conveyor surface.

[0050] Reference Figure 8 The strip of viscoelastic material 6, which has deviated, passes through the upstream conveyor line 1, then through the correction device 2, and before entering the material input port 501 of the material processing equipment 5 on the downstream conveyor line 3, a deviation detection device 4 is installed. When the deviation detection device 4 detects that the material deviation exceeds the tolerance, the correction device 2 separates the strip of viscoelastic material 6 from the conveyor surface on the side that deviates more. This can simultaneously generate one or more combinations of motions, such as vertical tilt deflection, lateral displacement, or vertical lifting displacement, to guide the strip of viscoelastic material 6 through the attached... Figure 3 The guide roller 201 in the middle brings it back to the aligning conveyor area.

[0051] After undergoing one correction, the strip-shaped viscoelastic material 6 passes through the first deviation detector 401 and the fourth deviation detector 404 on the downstream conveyor line 3 for deviation displacement confirmation. The correction device separates and corrects the strip-shaped viscoelastic material 6 in real time based on the detection signal values. Finally, the strip-shaped viscoelastic material 6 that meets the deviation range passes through the second deviation detector 402 and the third deviation detector 403 for a second offset confirmation, and then enters the material processing equipment 5 from the material input port 501, ensuring that the left and right corner allowances of the processing area meet the requirements.

[0052] Reference Figure 3 This figure shows a simplified diagram of a correction device (excluding the drive motor, etc.). A guide roller 201 is mounted on a rotating support 202 and can rotate along its axis. The guide roller 201 can be either powered or unpowered. The rotating support 202 is connected to a rotating base 204 via a transverse shaft 203. The rotating base 204 is connected to a transverse platform 205, and limit blocks 206 are installed at both ends of the transverse platform as limit switches for the rotating support 202. The middle and rear section of 205 is connected to the vertical rotating shaft 207 and can generate lateral displacement (lateral rotation). The vertical rotating shaft 207 is cross-connected to the lower cross shaft 210, and a limit seat 209 is provided at the rear end of the vertical rotating shaft 207 to limit the maximum downward displacement of the above mechanism (the downward rotation amplitude around the lateral cross shaft 210). The cross shaft 210 is installed in the rotating shaft hole of the rotating fixed support 208. The rotating fixed support 208 is connected to the mounting plate 211 to maintain the balance and stability of the separation mechanism.

[0053] Reference Figure 4The guide roller 201 and the rotating support 202 can generate rotational motion through the transverse rotating shaft 203, and their deflection angle is... and Corresponding to the vertical tilt angles on both sides, a tetrahedral cavity is generated within the conveying surface. Vertical tilt angle and For the side of the strip-shaped viscoelastic material 6 that is more offset, when the offset is small, the centering can be adjusted by rotating the tilt angle to correct the offset.

[0054] Reference Figure 5 When the conveyed strip-shaped viscoelastic material 6 has a large offset and the material conveying speed is high, rapid correction is required. At this time, the transverse platform 205 can drive the guide roller 201, rotating bracket 202, transverse rotating shaft 203, and rotating support 204 connected to it to quickly move laterally in the direction of the material's negative offset. The transverse displacement is shown as L2 in the figure. When the material has a large offset, if the correction speed is still insufficient, it can be referred to... Figure 6 The guide roller 201, rotating bracket 202, transverse rotating shaft 203, rotating support 204, and transverse platform 205 mentioned above can continue to generate upward displacement (rotational displacement L3 around the transverse cross axis 210) to compensate for the problem of untimely tilt angle correction adjustment.

[0055] The above content is one of the preferred embodiments of the present invention. The present invention is not limited to the cases implemented as described above. In the implementation scheme, the structures and principles that are not described in detail are all common implementation methods in the art.

Claims

1. A device for rectifying the deviation of a strip of viscoelastic material, the rectifying device (2) being arranged between an upstream conveying line (1) and a downstream conveying line (3), the rectifying device (2) comprising: The cross shaft (210) is rotatably mounted on the two rotating fixed supports (208) and rotates around the rotating fixed supports (208), the other end of the cross shaft (210) is rotatably mounted in the vertical rotating shaft (207) on one side of the horizontal moving platform (205), the rotating support (204) is mounted on the other side of the horizontal moving platform (205), the horizontal rotating shaft (203) is rotatably mounted on the rotating support (204) and penetrates the rotating support (204), the rotating support (202) is mounted on the horizontal rotating shaft (203), the guide roller (201) is mounted on the left and right ends of the rotating support (202), the guide roller (201) is perpendicular to the conveying direction of the upstream conveying line (1) and the downstream conveying line (3), and the initial position of the guide roller (201) is in the same plane as the conveying surface of the upstream conveying line (1) and the downstream conveying line (3), and the vertical rotating shaft (207), the horizontal rotating shaft (203) and the cross shaft (210) are respectively driven to rotate by motors. The deviation correcting device (2) further comprises a controller, a first detector (401), a second detector (402), a third detector (403) and a fourth detector (404), the first detector (401), the second detector (402), the third detector (403) and the fourth detector (404) are respectively placed above the two opposite edges of the downstream conveying line (3), the first detector (401) and the fourth detector (404) are oppositely arranged with the downstream conveying line (3) in between, the second detector (402) and the third detector (403) are downstream of the first detector (401) and the fourth detector (404) and oppositely arranged with the downstream conveying line (3) in between, and the controller is connected with the first detector (401), the second detector (402), the third detector (403), the fourth detector (404) and the three motors.

2. The belt of claim 1 wherein: It further comprises two limiting blocks (206), one limiting block (206) is mounted on the horizontal moving platform (205) below each end of the rotating support (202).

3. The belt of claim 2 wherein: The vertical rotating shaft (207) is a hollow shaft, and the other end of the cross shaft (210) is rotatably mounted in the vertical rotating shaft (207).

4. A method for correcting the deviation of the strip-shaped viscoelastic material by using the strip-shaped viscoelastic material conveying deviation correcting device according to claim 3, characterized in that: (I) judging the deviation direction of the strip-shaped viscoelastic material detecting the distance X of the strip of viscoelastic material from the two opposite sides of the downstream conveyor line (3) by means of the first detector (401) and the fourth detector (404) A and X B when X A >X B the strip of viscoelastic material is far from the A side; when X A <X B the strip of viscoelastic material is deviated towards the A side; (II) deflecting the cross shaft (210) Rotating the cross shaft (210) to rotate the horizontal moving platform (205) upward by 3-20° relative to the horizontal plane; (III) deflecting the horizontal rotating shaft (203) The lateral rotation shaft (203) rotates, so that the rotating support (202) on one side of the band-shaped viscoelastic material deviates from the edge is raised; at the same time, the second detector (402) and the third detector (403) detect the distance X of the band-shaped viscoelastic material from the two opposite edges of the downstream conveying line (3) A and X B ; if the deviation state of step (1) is still maintained; step (4) is performed; if the deviation state of step (1) is changed, the lateral rotation shaft (203) reverses to the initial position, the cross shaft (210) reverses to the initial position, and the deviation is corrected; (IV) deflecting the vertical rotating shaft (207) The vertical rotating shaft (207) is deflected, the horizontal moving platform (205) is rotated 3-20° relative to its initial position, so that the rotating support (202) on one side of the edge close to the strip-shaped viscoelastic material deviates continues to rise; at the same time, the second detector (402) and the third detector (403) detect the distance X of the strip-shaped viscoelastic material from the two opposite edges of the downstream conveying line (3) A and X B ; if the deviation state of step (three) is still maintained, the horizontal rotating shaft (203) is reversely rotated to the initial position, the cross shaft (210) is reversely rotated to the initial position, the vertical rotating shaft (207) is reversely rotated to the initial position, and then steps (two) to (four) are repeated; if the deviation state of step (three) is changed, the horizontal rotating shaft (203) is reversely rotated to the initial position, the cross shaft (210) is reversely rotated to the initial position, the vertical rotating shaft (207) is reversely rotated to the initial position, and the deviation correction is ended.

5. The method of claim 4, wherein: The initial position of the transverse rotating shaft (203) is that the rotating shaft (203) is rotated to make the guide roller (201) parallel to the transverse moving platform (205); the initial position of the cross shaft (210) is that the transverse moving platform (205) is parallel to the mounting plate (211); and the initial position of the vertical rotating shaft (207) is that the line connecting the vertical rotating shaft (207) and the transverse rotating shaft (203) is parallel to the upstream conveying line (1) and the downstream conveying line (3).

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