Molding net tension adjusting device

By employing an independent lifting drive mechanism and an airbag drive in the forming wire tension adjustment device, precise adjustment of the forming wire tension is achieved, solving the problem of forming wire deviation and improving paper forming quality and equipment stability.

CN223921875UActive Publication Date: 2026-02-17CHINA TOBACCO MAUDUIT (JIANGMEN) PAPER IND CO LTD
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Patent Information

Application Number
CN202520327620.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-17
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

In existing technologies, the tension on both sides of the forming wire can only be adjusted synchronously, which makes the forming wire prone to deviation when the vacuum on both sides is unbalanced. This affects the tension balance of the forming wire and the paper forming quality, and may even lead to equipment failure.

Method used

Two independent lifting drive mechanisms are used to drive the lifting of both sides of the tension roller. Combined with the driving method of airbags and swing components, the tension of the forming net can be adjusted on one or both sides. The elasticity of the airbags and the gradual inflation and deflation process ensure the stability of tension adjustment. Independent or synchronous height adjustment can be achieved through pipeline and valve control.

Benefits of technology

This effectively prevents the forming wire from deviating due to uneven tension, ensures the consistency of tension on both sides of the forming wire, improves the paper forming quality and equipment stability, and reduces the risk of equipment failure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of forming net tension adjusting, in particular to a forming net tension adjusting device which comprises a machine frame and a tensioning roller and further comprises a first lifting driving mechanism and a second lifting driving mechanism which are both arranged on the machine frame. The two ends of the tensioning roller are connected with the power output end of the first lifting driving mechanism and the power output end of the second lifting driving mechanism respectively. The device overcomes the defects that in the prior art, tensioning force on the two sides of a forming net can only be adjusted synchronously, and the forming net is prone to deviation when the vacuum degrees on the two sides are unbalanced, the two lifting driving mechanisms are arranged to drive the two sides of the tensioning roller to ascend and descend respectively, the tensioning roller can ascend and descend on one side or synchronously ascend and descend on the two sides, and therefore the forming net can ascend and descend synchronously. Therefore, adjustment of single-side or double-side tension of the forming net is achieved, it is guaranteed that the tension on the two sides of the forming net is consistent, and the phenomenon that the forming net deviates towards the side with large tension due to uneven tension is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the forming net tension adjusting technical field, more specifically, relate to a kind of forming net tension adjusting device. BACKGROUND

[0002] Forming net is the key component of paper pulp forming in the production process of cigarette paper machine, paper pulp is laid on forming net, and wet paper sheet with certain thickness and uniformity can be formed by dewatering.Forming net is kept in a certain tension state by tension roller through exerting proper tension, to prevent it from relaxing in the running process.

[0003] The prior art discloses a kind of paper printing tension adjustable control device and its using method, and its control device includes adjusting cylinder and tension mechanism, the inside of adjusting cylinder is hollow structure, and tension mechanism includes air pump, rectangular hollow rubber air bag, two top rods, first mounting plate and second mounting plate, air pump is fixedly arranged at the axial end of adjusting cylinder, one of the air pipes is connected with the air outlet of air pump, second mounting plate is placed at the upper end of rectangular hollow rubber air bag, two top rods are symmetrically arranged at the upper end of second mounting plate, the top end of top rod is slidably penetrated through adjusting cylinder and is fixedly connected with the bottom end surface of first mounting plate, vertical column is vertically arranged at the upper end of first mounting plate on both sides, and tension roller is rotatably arranged between two vertical columns.The tension of forming net is adjusted by controlling the lifting of tension roller through inflating or exhausting air bag.

[0004] However, the two sides of the tension roller of the above-mentioned prior art are synchronously adjusted, and the tension of the two sides of the forming net of the cigarette paper machine is easily affected by the high vacuum of the net part, resulting in uneven stress, which makes the two sides of the forming net prone to tension imbalance, leading to the deviation of the forming net, that is, the position shift of the forming net in the transverse direction (i.e., perpendicular to the running direction of the paper machine).This not only affects the forming quality of the paper, but also may cause the wear of the forming net to be intensified, and even cause equipment failure and production interruption. UTILITY MODEL CONTENTS

[0005] In view of the problem that the tension of the two sides of the forming net in the above-mentioned prior art can only be synchronously adjusted, and the forming net is prone to deviation when the vacuum degree of the two sides is unbalanced, the utility model provides a forming net tension adjusting device, which can avoid the deviation of the forming net.

[0006] To solve the above technical problems, the technical scheme provided by the utility model is:

[0007] A forming net tension adjusting device, comprising a rack and a tension roller, further comprising a first lifting drive mechanism and a second lifting drive mechanism both arranged on the rack, and the two ends of the tension roller are respectively connected with the power output end of the first lifting drive mechanism and the power output end of the second lifting drive mechanism.

[0008] In the above technical solution, the forming wire is laid on the tension roller, when the forming wire is out of alignment due to uneven force, the first lifting driving mechanism or the second lifting driving mechanism is used to drive the lifting of one side of the tension roller, so as to adjust the tension of one side of the forming wire, ensure the uniform tension of both sides of the forming wire, and avoid the deviation of the forming wire to the side with larger tension due to uneven tension.

[0009] The first lifting driving mechanism and the second lifting driving mechanism can be one of a pneumatic cylinder driving mechanism, an air bag driving mechanism, a hydraulic cylinder driving mechanism, a motor screw driving mechanism, a synchronous belt driving mechanism, an electric push rod driving mechanism, and a rack and pinion lifting driving mechanism.

[0010] Preferably, the first lifting driving mechanism comprises a first lifting air bag arranged on the rack, and a power output end of the first lifting air bag is connected with one end of the tension roller; and the second lifting driving mechanism comprises a second lifting air bag arranged on the rack, and a power output end of the second lifting air bag is connected with the other end of the tension roller. The first lifting air bag is inflated to lift one end of the tension roller, so as to adjust the tension of one side of the forming wire. The working principle of the second lifting air bag is the same as that of the first lifting air bag. The air bag has good elasticity, can absorb and relieve the impact and vibration generated in the adjustment process, and makes the lifting movement of the tension roller more stable, avoids too large fluctuation or damage of the forming wire in the tension adjustment process, and ensures the forming quality of the paper. In addition, the inflation and deflation process of the air bag is gradual, which can realize slow and continuous adjustment of the position of the tension roller, is beneficial to the stable transition of the tension of the forming wire, and avoids paper damage or equipment failure caused by sudden tension change.

[0011] Preferably, the first lifting driving mechanism further comprises a first swing member, one end of the first swing member is rotationally connected with the rack, the other end of the first swing member is connected with one end of the tension roller, and the power output end of the first lifting air bag is connected between the two ends of the first swing member; and the second lifting driving mechanism further comprises a second swing member, one end of the second swing member is rotationally connected with the rack, the other end of the second swing member is connected with the other end of the tension roller, and the power output end of the second lifting air bag is connected between the two ends of the second swing member. The first lifting air bag and the second lifting air bag drive the first swing member and the second swing member to swing respectively, and the first swing member and the second swing member drive the two ends of the tension roller to lift respectively when swinging. The first swing member and the second swing member can accurately control the lifting amplitude of the tension roller, realize the fine adjustment of the position of the tension roller, and thus realize the fine adjustment of the tension of the forming wire. Moreover, the first swing member and the second swing member have certain mechanical buffering effect, can absorb and relieve the vibration generated in the driving process of the first lifting air bag and the second lifting air bag, and make the lifting movement of the tension roller more stable.

[0012] Preferably, the device further comprises a first rotating shaft and a second rotating shaft; the first swing member is rotatably connected to the frame through the first rotating shaft, and the first rotating shaft is provided with a first angle sensor; the second swing member is rotatably connected to the frame through the second rotating shaft, and the second rotating shaft is provided with a second angle sensor. The first angle sensor can monitor the rotation angle of the first swing member in real time, so as to accurately determine the lifting position of one end of the tension roller. The first angle sensor and the second angle sensor are used to detect the rotation of the first rotating shaft and the second rotating shaft, so as to determine the abnormal angle change of the first swing member and the second swing member. When the first swing member or the first swing member angle does not change, changes too little, too much, too slowly or too quickly, it indicates that the first lifting air bag or the second lifting air bag may have a gas leak, or the valve described above has a fault, etc. Therefore, the first angle sensor and the second angle sensor can help to confirm whether the device is abnormal.

[0013] Preferably, the frame is provided with an alarm, and the first angle sensor and the second angle sensor are both signal connected to the alarm. When the first angle sensor or the second angle sensor detects that the rotation angle change of the first swing member or the second swing member is abnormal, a signal will be sent to the alarm, so that the alarm sends an alarm, so that the operator can arrive at the scene in time to troubleshoot and repair.

[0014] Preferably, the device further comprises a first pipeline and a second pipeline, the first pipeline is provided with a first pressure regulating valve, and the gas outlet end of the first pipeline is communicated with the first lifting air bag; the second pipeline is provided with a second pressure regulating valve, and the gas outlet end of the second pipeline is communicated with the second lifting air bag. The gas enters the first lifting air bag and the second lifting air bag through the first pipeline and the second pipeline respectively, and the first pressure regulating valve and the second pressure regulating valve can adjust the pressure in the first lifting air bag and the second lifting air bag, so as to control the expansion degree of the first lifting air bag and the second lifting air bag, thereby realizing the accurate control of the height of both ends of the tension roller.

[0015] Preferably, the gas inlet end of the second pipeline is communicated with the first pipeline, so that the first pipeline and the second pipeline do not need to be connected to two different compressed gas sources respectively, and the number of compressed gas sources can be reduced.

[0016] Preferably, the device further comprises a bypass pipeline, a first switch valve and a second switch valve, the first switch valve is arranged on the first pipeline, the second switch valve is arranged on the bypass pipeline, one end of the bypass pipeline is located between the first switch valve and the first lifting air bag and is communicated with the first pipeline, and the other end of the bypass pipeline is located between the second pressure regulating valve and the second lifting air bag and is communicated with the second pipeline.

[0017] When it is needed to adjust the height of the side where the first lifting air bag is located on the tension roller individually, the first switch valve is opened, the second switch valve and the second pressure regulating valve are closed, so that the gas can only enter the first lifting air bag through the first pipeline, and then the lifting height of the first lifting air bag is adjusted by adjusting the first pressure regulating valve. When it is needed to adjust the height of the side where the second lifting air bag is located on the tension roller individually, the first switch valve and the second switch valve are closed, so that the gas only enters the second lifting air bag through the second pipeline, and then the lifting height of the second lifting air bag is adjusted by adjusting the second pressure regulating valve. When it is needed to adjust the heights of both ends of the tension roller, the second switch valve is opened, the first switch valve is closed, the gas flows into the first pipeline and then flows into the second pipeline, and then the gas is branched at the bypass pipeline, part of the gas continues to flow in the second pipeline, and part of the gas flows into the first pipeline through the bypass pipeline, at this time, the synchronous adjustment of the heights of both ends of the tension roller can be realized by adjusting the second pressure regulating valve.

[0018] It can be understood that the synchronous adjustment of the first lifting air bag and the second lifting air bag can also be realized by simultaneously adjusting the first pressure regulating valve and the second pressure regulating valve, but it is difficult to ensure that the expansion degrees of the first lifting air bag and the second lifting air bag are always consistent, so that it is difficult to ensure that the heights of both ends of the tension roller are synchronously changed. The setting of the bypass pipeline, the first switch valve and the second switch valve can make the pressures of the first lifting air bag and the second lifting air bag always consistent, so that the problem of different lifting speeds caused by the pressure difference is avoided.

[0019] Preferably, a gas control box is further included, the first pressure regulating valve, the second pressure regulating valve, the first switch valve and the second switch valve are located in the gas control box, and the gas inlet end of the first pipeline is located outside the gas control box. The first pressure regulating valve, the second pressure regulating valve, the first switch valve and the second switch valve are concentrated in the gas control box, so that the operator can centrally control the inflation, deflation and pressure adjustment of the first lifting air bag and the second lifting air bag at one position, and the operation efficiency is improved.

[0020] Preferably, anti-skid lines are arranged on the roller surface of the tension roller. The anti-skid lines can increase the friction between the forming net and the roller surface of the tension roller, so as to reduce the risk of deviation of the forming net.

[0021] The utility model discloses the beneficial effect of:

[0022] 1、 setting two lifting drive mechanisms to drive the lifting of the two sides of the tension roller respectively, so that the tension roller can be lifted on one side or synchronously lifted on both sides, thereby realizing the adjustment of the tension of the forming net on one side or both sides, ensuring that the tensions of the two sides of the forming net are consistent, and avoiding the deviation of the forming net to the side with greater tension due to uneven tension.

[0023] 2. The lifting driving mechanism of the tensioning roller is driven by the air bag combined with the swing member, so that the lifting movement of the tensioning roller is more stable, the forming wire is prevented from being damaged or having too large fluctuation during the tension adjustment, and the forming quality of the paper is ensured.

[0024] 3. The first lifting air bag and the second lifting air bag are connected with the first pipeline and the second pipeline respectively, the first pipeline and the second pipeline are communicated through the bypass pipeline, the first pressure regulating valve and the first switch valve are arranged on the first pipeline, the second pressure regulating valve is arranged on the second pipeline, and the second switch valve is arranged on the bypass pipeline. The independent adjustment of the first lifting air bag, the independent adjustment of the second lifting air bag and the synchronous adjustment of the first lifting air bag and the second lifting air bag can be realized by adjusting different valves, and the problem of different lifting speeds caused by the pressure difference can be avoided in the synchronous adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a forming wire tension adjusting device.

[0026] Figure 2 It is a schematic diagram of the flow direction of the gas when one side of the tensioning roller is adjusted to lift.

[0027] Figure 3 It is a schematic diagram of the flow direction of the gas when the other side of the tensioning roller is adjusted to lift.

[0028] Figure 4 It is a schematic diagram of the flow direction of the gas when the two sides of the tensioning roller are adjusted to lift synchronously.

[0029] In the drawings: 1 - frame; 101 - first support; 102 - second support; 2 - tensioning roller; 3 - first lifting air bag; 4 - second lifting air bag; 5 - first swing member; 6 - second swing member; 7 - first pipeline; 8 - second pipeline; 9 - first pressure regulating valve; 10 - second pressure regulating valve; 11 - bypass pipeline; 12 - first switch valve; 13 - second switch valve; 14 - air control box; 15 - first rotating shaft; 16 - second rotating shaft; 17 - forming wire. DETAILED DESCRIPTION

[0030] The drawings are only used for exemplary illustration, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some well-known structures in the drawings and their descriptions can be omitted. The positional relationship described in the drawings is only used for exemplary illustration, and cannot be understood as the limitation of the patent.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0033] Example 1

[0034] This embodiment is a first embodiment of a forming mesh tension adjustment device, such as... Figure 1 As shown, it includes a frame 1 and a tension roller 2, and also includes a first lifting drive mechanism and a second lifting drive mechanism, both of which are mounted on the frame 1. The two ends of the tension roller 2 are respectively connected to the power output ends of the first lifting drive mechanism and the second lifting drive mechanism.

[0035] Specifically, the frame 1 is divided into a first support 101 and a second support 102. The first lifting drive mechanism is set on the first support 101 and the second lifting drive mechanism is set on the second support 102.

[0036] Specifically, the first lifting drive mechanism includes a first lifting airbag 3 mounted on the first support 101, with its power output end connected to one end of the tension roller 2; the second lifting drive mechanism includes a second lifting airbag 4 mounted on the second support 102, with its power output end connected to the other end of the tension roller 2. The airbags have good elasticity, absorbing and mitigating the impact and vibration generated during adjustment, making the lifting movement of the tension roller 2 smoother and preventing excessive fluctuations or damage to the forming wire 17 during tension adjustment, thus ensuring the paper forming quality. Furthermore, the inflation and deflation process of the airbags is gradual, enabling slow and continuous adjustment of the tension roller 2's position, which facilitates a smooth transition of the forming wire 17's tension and avoids paper damage or equipment malfunction caused by sudden tension changes.

[0037] Specifically, there are two of each of the first lifting airbag 3 and the second lifting airbag 4, which helps to reduce the risk of excessive deformation or damage to a single airbag due to excessive load.

[0038] Further, the first lifting driving mechanism further comprises a first swing member 5, one end of the first swing member 5 is rotatably connected with the first support 101, the other end of the first swing member 5 is connected with one end of the tension roller 2, and the power output end of the first lifting air bag 3 is connected between the two ends of the bottom of the first swing member 5; the second lifting driving mechanism further comprises a second swing member 6, one end of the second swing member 6 is rotatably connected with the second support 102, the other end of the second swing member 6 is connected with the other end of the tension roller 2, and the power output end of the second lifting air bag 4 is connected between the two ends of the bottom of the second swing member 6. The first swing member 5 and the second swing member 6 can accurately control the lifting amplitude of the tension roller 2, realize the fine adjustment of the position of the tension roller 2, and thus realize the fine adjustment of the tension of the forming wire 17. Moreover, the first swing member 5 and the second swing member 6 have a certain mechanical buffering effect, can absorb and alleviate the vibration generated in the driving process of the first lifting air bag 3 and the second lifting air bag 4, and make the lifting movement of the tension roller 2 more stable.

[0039] The working principle or working process of the embodiment is as follows: the forming wire 17 is laid on the tension roller 2, when the forming wire 17 deviates due to uneven stress, the first lifting air bag 3 can be inflated or deflated to drive the first swing member 5 to swing, and one end of the tension roller 2 is lifted or lowered by the swing of the first swing member 5, so as to realize the tension adjustment of one side of the forming wire 17. The working process of the second lifting air bag 4 and the second swing member 6 is the same as that of the first lifting air bag 3 and the first swing member 5 respectively, and thus will not be described herein again. When it is needed to adjust the tension of both sides of the forming wire 17 at the same time, the first lifting air bag 3 and the second lifting air bag 4 can be inflated or deflated at the same time, so that the first swing member 5 and the second swing member 6 swing synchronously, and thus the two sides of the tension roller 2 are lifted synchronously.

[0040] The beneficial effects of the embodiment are as follows:

[0041] 1. Two lifting driving mechanisms are arranged to drive the lifting of the two sides of the tension roller respectively, so that the tension roller can be lifted on one side or lifted on both sides synchronously, thereby realizing the tension adjustment of one side or both sides of the forming wire, ensuring that the tensions of both sides of the forming wire are consistent, and avoiding the deviation of the forming wire to the side with larger tension due to uneven tension.

[0042] 2. The lifting driving mechanism of the tension roller driven by the air bag combined with the swing member can make the lifting movement of the tension roller more stable, avoid too large fluctuation or damage of the forming wire in the tension adjustment process, and ensure the forming quality of the paper.

[0043] Embodiment 2

[0044] The second embodiment of the forming wire tension adjustment device is similar to the first embodiment, and the difference is that, as shown in FIG. 2, the first lifting air bag 3 and the second lifting air bag 4 are arranged on the same side of the tension roller 2, and the first swing member 5 and the second swing member 6 are arranged on the other side of the tension roller 2. Figure 1As shown, the first pipeline 7 is provided with a first pressure regulating valve 9, and the outflow end of the first pipeline 7 is communicated with the first lifting air bag 3; the second pipeline 8 is provided with a second pressure regulating valve 10, and the outflow end of the second pipeline 8 is communicated with the second lifting air bag 4. The gas enters the first lifting air bag 3 and the second lifting air bag 4 through the first pipeline 7 and the second pipeline 8 respectively, and the first pressure regulating valve 9 and the second pressure regulating valve 10 can regulate the pressure in the first lifting air bag 3 and the second lifting air bag 4 to control the expansion degree of the first lifting air bag 3 and the second lifting air bag 4, so as to realize the precise control of the height of the two ends of the tensioning roller 2.

[0045] Further, the inflow end of the second pipeline 8 is communicated with the first pipeline 7, so that the first pipeline 7 and the second pipeline 8 do not need to be connected to two different compressed gas sources respectively, and the number of compressed gas sources can be reduced.

[0046] Further, the bypass pipeline 11, the first switch valve 12 and the second switch valve 13 are further included, the first switch valve 12 is arranged on the first pipeline 7, the second switch valve 13 is arranged on the bypass pipeline 11, one end of the bypass pipeline 11 is located between the first switch valve 12 and the first lifting air bag 3 and communicated with the first pipeline 7, and the other end of the bypass pipeline 11 is located between the second pressure regulating valve 10 and the second lifting air bag 4 and communicated with the second pipeline 8.

[0047] When it is needed to adjust the height of the side of the tensioning roller 2 where the first lifting air bag 3 is located, the first switch valve 12 is opened, the second switch valve 13 and the second pressure regulating valve 10 are closed, and the gas can only enter the first lifting air bag 3 through the first pipeline 7, at this time, the flow direction of the gas is as shown in Figure 2 Then, the lifting height of the first lifting air bag 3 is adjusted by adjusting the first pressure regulating valve 9. When it is needed to adjust the height of the side of the tensioning roller 2 where the second lifting air bag 4 is located, the first switch valve 12 and the second switch valve 13 are closed, and the gas only enters the second lifting air bag 4 through the second pipeline 8, at this time, the flow direction of the gas is as shown in Figure 3 Then, the lifting height of the second lifting air bag 4 is adjusted by adjusting the second pressure regulating valve 10. When it is needed to adjust the height of the two ends of the tensioning roller 2, the second switch valve 13 is opened, the first switch valve 12 is closed, the gas first flows into the first pipeline 7 and then flows into the second pipeline 8, and then is branched at the bypass pipeline 11, after the branching, part of the gas continues to flow in the second pipeline 8, and part of the gas flows into the first pipeline 7 through the bypass pipeline 11, at this time, the flow direction of the gas is as shown in Figure 4 At this time, the synchronous adjustment of the height of the two ends of the tensioning roller 2 can be realized by adjusting the second pressure regulating valve 10.

[0048] It can be understood that the synchronous adjustment of the first lifting air bag 3 and the second lifting air bag 4 can also be realized by simultaneously adjusting the first pressure regulating valve 9 and the second pressure regulating valve 10, but it is difficult to ensure that the change of the inflation degree of the first lifting air bag 3 and the second lifting air bag 4 is always consistent, thereby it is difficult to ensure that the height of the two ends of the tensioning roller 2 is synchronously changed. The setting of the bypass pipeline 11, the first switch valve 12 and the second switch valve 13 can make the pressure of the first lifting air bag 3 and the second lifting air bag 4 always consistent, thereby avoiding the problem of different lifting caused by the pressure difference.

[0049] Further, the air control box 14 is further included, the first pressure regulating valve 9, the second pressure regulating valve 10, the first switch valve 12 and the second switch valve 13 are located in the air control box 14, and the air inlet end of the first pipeline 7 is located outside the air control box 14. The first pressure regulating valve 9, the second pressure regulating valve 10, the first switch valve 12 and the second switch valve 13 are concentrated in the air control box 14, so that the operator can concentrate on controlling the inflation, deflation and pressure adjustment of the first lifting air bag 3 and the second lifting air bag 4 at one position, which is beneficial to improve the operation efficiency.

[0050] The other features, working principles and beneficial effects of the embodiment are consistent with those of the embodiment 1.

[0051] Embodiment 3

[0052] The third embodiment of the forming net tension adjusting device is similar to the embodiment 2, and the difference lies in that, as shown in Figure 1 the first pivot 15 and the second pivot 16 are further included; the first swing member 5 is rotationally connected with the first support 101 through the first pivot 15, and the first angle sensor (not shown in the figure) is arranged on the first pivot 15; the second swing member 6 is rotationally connected with the second support 102 through the second pivot 16, and the second angle sensor (not shown in the figure) is arranged on the second pivot 16. The first angle sensor can monitor the rotation angle of the first swing member 5 in real time, thereby accurately determining the lifting position of one end of the tensioning roller 2. The rotation of the first pivot 15 and the second pivot 16 is detected by using the first angle sensor and the second angle sensor, so as to determine the abnormal angle change of the first swing member 5 and the second swing member 6. When the angle of the first swing member 5 or the first swing member 5 is unchanged, too small, too large, too slow or too fast, it is indicated that the first lifting air bag 3 or the second lifting air bag 4 may have air leakage, or the valve has a fault, etc. Therefore, the setting of the first angle sensor and the second angle sensor can help to confirm whether the device has an abnormality.

[0053] Further, the first support 101 or the second support 102 is provided with an alarm (not shown in the figure), and the first angle sensor and the second angle sensor are both signal-connected with the alarm. When the first angle sensor or the second angle sensor detects that the rotation angle change of the first swing piece 5 or the second swing piece 6 is abnormal, a signal will be sent to the alarm, so that the alarm sends an alarm, so that the operator can arrive at the scene in time to troubleshoot and repair.

[0054] Further, the surface of the tension roller 2 is provided with anti-skid lines. The anti-skid lines can increase the friction between the forming net 17 and the surface of the tension roller 2, thereby reducing the risk of deviation of the forming net 17.

[0055] The other features, working principles and beneficial effects of the embodiment are consistent with those of the embodiment 2.

[0056] In the specific contents of the above specific embodiments, each technical feature can be combined arbitrarily without contradiction. In order to make the description simple, all possible combinations of the above technical features are not described, but as long as the combination of the technical features does not exist contradiction, it should be considered as the scope of the present application.

[0057] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made, here it is not necessary and also cannot be exhausted for all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the claims of the present application.

Claims

1. A forming wire tension regulating device comprising a frame (1) and a tension roller (2), characterized in that, The first lifting driving mechanism and the second lifting driving mechanism are arranged on the frame (1), and two ends of the tensioning roller (2) are connected with a power output end of the first lifting driving mechanism and a power output end of the second lifting driving mechanism respectively.

2. A forming wire tension adjustment device according to claim 1, wherein, The first lifting driving mechanism comprises a first lifting air bag (3) arranged on the frame (1), and a power output end of the first lifting air bag (3) is connected with one end of the tensioning roller (2); the second lifting driving mechanism comprises a second lifting air bag (4) arranged on the frame (1), and a power output end of the second lifting air bag (4) is connected with the other end of the tensioning roller (2).

3. A forming wire tension adjustment device according to claim 2, wherein, The first lifting driving mechanism further comprises a first swing piece (5), one end of the first swing piece (5) is rotationally connected with the frame (1), the other end of the first swing piece (5) is connected with one end of the tensioning roller (2), and the power output end of the first lifting air bag (3) is connected between the two ends of the first swing piece (5); the second lifting driving mechanism further comprises a second swing piece (6), one end of the second swing piece (6) is rotationally connected with the frame (1), the other end of the second swing piece (6) is connected with the other end of the tensioning roller (2), and the power output end of the second lifting air bag (4) is connected between the two ends of the second swing piece (6).

4. A forming wire tension adjustment device according to claim 3, wherein, The first swing piece (5) is rotationally connected with the frame (1) through the first rotating shaft (15), and a first angle sensor is arranged on the first rotating shaft (15); the second swing piece (6) is rotationally connected with the frame (1) through the second rotating shaft (16), and a second angle sensor is arranged on the second rotating shaft (16).

5. A forming wire tension adjustment device according to claim 4, wherein, An alarm is arranged on the frame (1), and the first angle sensor and the second angle sensor are signal-connected with the alarm.

6. A forming wire tension adjustment device according to claim 2, wherein, A first pipeline (7) and a second pipeline (8) are further arranged, a first pressure regulating valve (9) is arranged on the first pipeline (7), and a gas outlet end of the first pipeline (7) is communicated with the first lifting air bag (3); a second pressure regulating valve (10) is arranged on the second pipeline (8), and a gas outlet end of the second pipeline (8) is communicated with the second lifting air bag (4).

7. A forming wire tension adjustment device according to claim 6, wherein, A gas inlet end of the second pipeline (8) is communicated with the first pipeline (7).

8. A forming wire tension adjustment device according to claim 7, wherein, A bypass pipeline (11), a first switch valve (12) and a second switch valve (13) are further arranged, the first switch valve (12) is arranged on the first pipeline (7), the second switch valve (13) is arranged on the bypass pipeline (11), one end of the bypass pipeline (11) is located between the first switch valve (12) and the first lifting air bag (3) and is communicated with the first pipeline (7), and the other end of the bypass pipeline (11) is located between the second pressure regulating valve (10) and the second lifting air bag (4) and is communicated with the second pipeline (8).

9. A forming wire tension adjustment device according to claim 8, wherein, Also included is a pneumatic control box (14), the first pressure regulating valve (9), the second pressure regulating valve (10), the first on-off valve (12) and the second on-off valve (13) are located in the pneumatic control box (14), and the air inlet end of the first pipeline (7) is located outside the pneumatic control box (14).

10. A forming wire tension adjustment device according to claim 1 wherein, The surface of the tensioning roller (2) is provided with anti-skid lines.