Automatic online tension adjusting device for TAD structural net

Abstract

The utility model discloses an on-line tension automatic adjusting device for a TAD structure net. The tensioning device comprises a supporting frame, a sliding rail arranged on the supporting frame, two sliding blocks arranged on the sliding rail and movably connected with the sliding rail, a fixing base jointly connected with the two sliding blocks, a driving motor connected with the fixing base, a lead screw arranged on the fixing base and in transmission connection with the driving motor, a sliding trolley arranged on the lead screw and a tensioning roller arranged on the sliding trolley. The first air cylinder is arranged on the supporting frame and used for driving the fixing base to move, and the TAD structure net is arranged on the tensioning roller in a sleeving mode. According to the on-line tension automatic adjusting device for the TAD structure net, through the arrangement of the driving motor, the lead screw and the first air cylinder, the tension of the TAD structure net can be adjusted on line in the operation process of a paper machine, the adjusting precision is improved, and the adjusting convenience is also improved.

Description

Technical Field

[0001] The utility model relates to the field of papermaking equipment, in particular to an automatic online tension regulating device for a TAD structure net. Background Art

[0002] The finished paper pulp is attached to the upper section structure net, and is transferred to the TAD structure net under the vacuum suction force of the vacuum transfer box. It is dried by hot air from the TAD cylinder, transferred to the drying cylinder through the rollers to continue drying into finished paper, and then enters the paper reel to be rolled into paper. After the roller transfer, the TAD net enters the cleaning and dehydration process to prepare for the recirculation into the vacuum transfer box to receive the pulp from the upper section.

[0003] Other types of structural nets generally work under conditions of global constant temperature or temperature changes in small areas, while the TAD structural net has to withstand high temperatures in the pulp drying section, and is then sprayed with normal temperature water for cleaning. The large temperature difference causes the TAD structural net to expand and stretch in the high temperature section, while the temperature drops during cleaning, and the TAD structural net cools down and shortens, causing the net to become long or short, and the net tension to change, which can cause the net to bend and damaged. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic online tension adjustment device for a TAD structural net.

[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing an automatic online tension adjustment device for a TAD structural net, which includes a support frame, a slide rail arranged on the support frame, two sliders arranged on the slide rail and movably connected to the slide rail, a fixed seat connected to the two sliders, a driving motor connected to the fixed seat, a screw rod arranged on the fixed seat and drivingly connected to the driving motor, a sliding trolley arranged on the screw rod, a tensioning roller arranged on the sliding trolley, and a first cylinder arranged on the support frame and used to drive the fixed seat to move;

[0006] The TAD structural net is sleeved on the tensioning roller.

[0007] In some embodiments, the TAD structural net online tension automatic adjustment device further includes a connecting block, the output end of the first cylinder is connected to the connecting block, and the connecting block is connected to the fixing seat via a fastener.

[0008] In some embodiments, the support frame is provided with a first sensor positioning seat, a second sensor positioning seat and a third sensor positioning seat in sequence along its length direction.

[0009] In some embodiments, a first position sensor is installed on the first sensor positioning seat, a second position sensor is installed on the second sensor positioning seat, and a third position sensor is installed on the third sensor positioning seat.

[0010] In some embodiments, a spray fixing block is connected to the tensioning roller, and a first sprayer is connected to the spray fixing block.

[0011] In some embodiments, the TAD structural net online tension automatic adjustment device also includes two bases arranged on the bottom side of the support frame.

[0012] In some embodiments, the TAD structural net online tension automatic adjustment device further includes a guide roller connected to the support frame, and the TAD structural net is sleeved on the guide roller.

[0013] In some embodiments, the TAD structural net online tension automatic adjustment device also includes a scraper assembly, which includes a fixing seat arranged on the support frame, a second cylinder arranged on the fixing seat, a limit seat connected to the output end of the second cylinder, and a scraper arranged on the limit seat and opposite to the guide roller.

[0014] In some embodiments, the TAD structural net online tension automatic adjustment device further includes a second sprayer connected to the support frame for spraying the guide roller.

[0015] The implementation of the utility model has the following beneficial effects: the TAD structural net is sleeved on the tensioning roller, and the tensioning roller is installed on the sliding trolley. The driving motor drives the sliding trolley to move left and right on the fixed seat through the screw rod. When the sliding trolley moves to the left, the TAD structural net is tensioned, and when it moves to the right, the TAD structural net is loosened. Moreover, the driving motor and the two sliders can slide left and right relative to the support frame through the pressurized drive of the first cylinder, that is, the tensioning roller can also move with the driving motor. The TAD structural net online tension automatic adjustment device can adjust the tension of the TAD structural net online during the operation of the paper machine through the arrangement of the driving motor, the screw rod and the first cylinder, thereby improving the adjustment accuracy and increasing the convenience of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1It is a schematic diagram of the overall structure of a TAD structure net online tension automatic adjustment device in some embodiments of the utility model;

[0018] Figure 2 yes Figure 1 A magnified schematic diagram of center A. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0020] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0021] See also Figure 1 and Figure 2, is a TAD structural net online tension automatic adjustment device of the utility model, which includes a support frame 1, a slide rail 10 arranged on the support frame 1, two sliders 2 arranged on the slide rail 10 and movably connected to the slide rail 10, a fixed seat 3 connected to the two sliders 2, a drive motor 4 connected to the fixed seat 3, a screw rod 5 arranged on the fixed seat 3 and transmission-connected to the drive motor 4, a sliding trolley 6 arranged on the screw rod 5, a tensioning roller 61 arranged on the sliding trolley 6, and a first cylinder 7 arranged on the support frame 1 and used to drive the fixed seat 3 to move. The TAD structural net 8 is sleeved on the tensioning roller 61.

[0022] The TAD structural net online tension automatic adjustment device further includes a connecting block 71, the output end of the first cylinder 7 is connected to the connecting block 71, and the connecting block 71 is connected to the fixing seat 3 via a fastener, which may be a bolt.

[0023] In addition, the support frame 1 is provided with a first sensor positioning seat 11, a second sensor positioning seat 12 and a third sensor positioning seat 13 in sequence along its length direction. The first sensor positioning seat 11 is installed with a first position sensor, the second sensor positioning seat 12 is installed with a second position sensor, and the third sensor positioning seat 13 is installed with a third position sensor. The above position sensors are used to sense the position of the sliding trolley 6. The first sensor positioning seat 11, the second sensor positioning seat 12 and the third sensor positioning seat 13 are specifically installed at the left, middle and right positions of the support frame 1, respectively.

[0024] It can be understood that the TAD structural net 8 is sleeved on the tensioning roller 61, and the tensioning roller 61 is installed on the sliding trolley 6. The driving motor 4 drives the sliding trolley 6 to move left and right on the fixed seat 3 through the screw rod 5. When the sliding trolley 6 moves to the left, the TAD structural net 8 is tensioned, and when it moves to the right, the TAD structural net 8 is loosened. Moreover, the driving motor 4 and the two sliders 2 can slide left and right relative to the support frame 1 through the pressurized drive of the first cylinder 7, that is, the tensioning roller 61 can also move with the driving motor 4. In actual application, before starting the machine, the first cylinder 7 sets the air pressure of the first cylinder 7 according to the tension requirement of the TAD structural net 8, and then drives the screw rod 5 through the driving motor 4 to drive the sliding trolley 6 and the tensioning roller 61 to move and tension the TAD structural net 8, and ensure that the second position sensor in the middle position has a signal. At this time, the motor is powered off and the entire paper machine is started for papermaking operations.

[0025] During the papermaking process, the tension changes due to the expansion and contraction of the TAD structure net 8. At this time, the fixed seat 3, the screw rod 5, the drive motor 4, the sliding carriage 6 and the tension roller 61 will slide on the support frame 1 through the drive of the first cylinder 7. When the sliding distance of the sliding carriage 6 is too large to trigger the first position sensor on the left or the third position sensor on the right, the drive motor 4 drives the screw rod 5 to move the sliding carriage 6 and the tension roller 61 in the opposite direction, and stops the operation of the drive motor 4 when it reaches the second position sensor in the middle.

[0026] In general, the automatic online tension adjustment device of the TAD structural net can adjust the tension of the TAD structural net 8 online during the operation of the paper machine through the setting of the driving motor 4, the screw 5 and the first cylinder 7, thereby improving the adjustment accuracy and increasing the convenience of adjustment.

[0027] In addition, a spray fixing block 74 is connected to the tensioning roller 61 , and a first sprayer 75 is connected to the spray fixing block 74 . The first sprayer 75 is used to clean the tensioning roller 61 .

[0028] The TAD structure net online tension automatic adjustment device also includes two bases 14 arranged on the bottom side of the support frame 1. The two bases 14 can be fixed on the paper machine or directly fixed on the ground to support the above-mentioned support frame 1.

[0029] Furthermore, the TAD structural net online tension automatic adjustment device also includes a guide roller 51 connected to the support frame 1, a scraper assembly 9 and a second sprayer 95, the TAD structural net 8 is sleeved on the guide roller 51, the scraper assembly 9 includes a retaining seat 91 provided on the support frame 1, a second cylinder 92 provided on the retaining seat 91, a limiting seat 93 connected to the output end of the second cylinder 92, and a scraper 94 provided on the limiting seat 93 and opposite to the guide roller 51, and the second sprayer 95 is connected to the support frame 1 for spraying the guide roller 51. The second cylinder 92 can drive the limiting seat 93 and the scraper 94 to swing back and forth, and the scraper 94 cooperates with the second sprayer 95 to remove pollutants on the guide roller 51.

[0030] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A TAD structure net online tension automatic adjustment device, characterized in that: The invention comprises a support frame (1), a slide rail (10) arranged on the support frame (1), two sliders (2) arranged on the slide rail (10) and movably connected to the slide rail (10), a fixed seat (3) connected to the two sliders (2), a drive motor (4) connected to the fixed seat (3), a screw rod (5) arranged on the fixed seat (3) and drivingly connected to the drive motor (4), a sliding trolley (6) arranged on the screw rod (5), a tensioning roller (61) arranged on the sliding trolley (6), and a first cylinder (7) arranged on the support frame (1) and used for driving the fixed seat (3) to move; The TAD structural net (8) is sleeved on the tensioning roller (61).

2. The TAD structural net online tension automatic adjustment device according to claim 1 is characterized in that: The TAD structural net online tension automatic adjustment device further comprises a connection block (71), the output end of the first cylinder (7) is connected to the connection block (71), and the connection block is connected to the fixing seat (3) via a fastener.

3. The TAD structural net online tension automatic adjustment device according to claim 1 is characterized in that: The support frame (1) is provided with a first sensor positioning seat (11), a second sensor positioning seat (12) and a third sensor positioning seat (13) in sequence along its length direction.

4. The TAD structural net online tension automatic adjustment device according to claim 3 is characterized in that: A first position sensor is installed on the first sensor positioning seat (11), a second position sensor is installed on the second sensor positioning seat (12), and a third position sensor is installed on the third sensor positioning seat (13).

5. The TAD structural net online tension automatic adjustment device according to claim 1 is characterized in that: The tensioning roller (61) is connected to a spray fixing block (74), and the spray fixing block (74) is connected to a first sprayer (75).

6. The TAD structural net online tension automatic adjustment device according to claim 1 is characterized in that: The TAD structural net online tension automatic adjustment device further comprises two bases (14) arranged on the bottom side of the support frame (1).

7. The TAD structural net online tension automatic adjustment device according to claim 1 is characterized in that: The TAD structural net online automatic tension adjustment device further comprises a guide roller (51) connected to the support frame (1), and the TAD structural net (8) is sleeved on the guide roller (51).

8. The TAD structural net online tension automatic adjustment device according to claim 7 is characterized in that: The TAD structural net online tension automatic adjustment device also includes a scraper assembly (9), the scraper assembly (9) including a retaining seat (91) arranged on the support frame (1), a second cylinder (92) arranged on the retaining seat (91), a limiting seat (93) connected to the output end of the second cylinder (92), and a scraper (94) arranged on the limiting seat (93) and opposite to the guide roller (51).

9. The TAD structural net online tension automatic adjustment device according to claim 7 is characterized in that: The TAD structural net online tension automatic adjustment device further comprises a second sprayer (95) connected to the support frame (1) and used for spraying the guide roller (51).

Images