Tension adjusting mechanism of feeding traction unit

Abstract

The utility model discloses a tension adjusting mechanism of a feeding traction unit, which comprises a wall plate and at least two tension rollers movably arranged on the wall plate, each tension roller is provided with a tension adjusting component for driving the tension roller to move, and the tension adjusting components drive the tension rollers to move along the radial direction of the tension rollers. The mechanism has the following advantages and effects that the adjusting range is larger, and the mechanism can better adapt to emergencies, so that the reliability of the mechanism is improved.

Description

Technical Field

[0001] The utility model relates to a printing machine, in particular to a tension adjusting mechanism of a feeding and traction unit. Background Art

[0002] The feeding and traction unit of a printing machine is an important part of the printing machine. Its main function is to smoothly and accurately transport the material to be printed to the printing unit of the printing machine. The design and performance of this unit directly affect the printing quality and efficiency. The feeding and traction unit includes a feeding mechanism, a traction mechanism, a guiding mechanism, and a tension adjusting mechanism. The tension adjusting mechanism is used to adjust and control the tension of the material during the transmission process to avoid printing problems caused by excessive or too small tension.

[0003] There is only one set of tension adjusting mechanisms on the existing feeding and traction units, resulting in a very limited adjustment range of the tension adjusting mechanism and certain adjustment limitations. When emergencies occur during the operation of the equipment, it is extremely easy to cause the adjustment stroke of one set of tension adjusting mechanisms to be unable to cope with the emergencies, resulting in failures and affecting the reliability of the equipment. According to the above problems, the present invention came into being. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tension adjusting mechanism of a feeding and traction unit. The adjustment range of the tension adjusting mechanism is larger, and it can better adapt to emergencies, so as to improve the reliability of the mechanism.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A tension adjusting mechanism of a feeding and traction unit includes a wallboard and a tension roller movably arranged on the wallboard. The tension roller is provided with at least two, and each tension roller is provided with a tension adjusting component for driving its movement. The tension adjusting component drives the tension roller to move along its radial direction.

[0006] By adopting the above technical solutions, the adjustment range of the mechanism is increased by means of at least two sets of tension adjusting components cooperating with at least two tension rollers, so that the mechanism can better adapt to emergencies, thereby improving the reliability of the mechanism.

[0007] It is further set that: the number of the tension rollers is two, the number of the tension adjusting components is two and they are respectively the first tension adjusting component and the second tension adjusting component. The first tension adjusting component is belt adjustment, and the second tension adjusting component is cylinder adjustment.

[0008] By adopting the above technical solutions, the advantages of the belt adjustment method are that its transmission is stable, the noise is small, and it can transmit power over a relatively long distance; the advantages of the cylinder adjustment method are that its response speed is fast, the control accuracy is high, and it can provide a large driving force. Combining the two can make full use of the stability of belt drive and the fast response of cylinder drive, making the whole structure more flexible and adaptable. It can better adapt to different working environments and requirements, and make the overall performance of the structure more excellent.

[0009] Further set as: The first tension adjustment member includes two pulleys rotatably arranged on the wall panel, a transmission belt connecting the two pulleys, and a drive assembly for driving the pulleys to rotate, and one of the tension rollers is connected to the transmission belt.

[0010] By adopting the above technical solutions, the drive assembly drives the transmission belt to move through the pulley, so as to drive the tension roller to achieve the purpose of tension adjustment.

[0011] Further set as: The two pulleys and the transmission belt are set as two groups and respectively correspond to both ends of the tension roller. Both ends of the tension roller are respectively connected to the two transmission belts, and the drive assembly drives the two transmission belts to move synchronously.

[0012] By adopting the above technical solutions, this structure enables only one set of drive components for the two sets of drives, making the structure simpler and the cost lower; and it is set as two sets to achieve the stable movement of the tension roller, avoiding its deviation and improving the accuracy of tension adjustment.

[0013] Further set as: A guiding assembly for guiding the tension roller to reciprocate radially along its diameter is provided on the tension roller corresponding to the first tension adjustment member.

[0014] By adopting the above technical solutions, the guiding assembly is provided to guide the movement direction of the tension roller, so as to further improve the adjustment accuracy.

[0015] Further set as: The drive assembly includes a drive shaft respectively connected to two opposite pulleys on the corresponding two transmission belts, a drive motor arranged on the wall panel, a transmission wheel installed between the drive motor and the drive shaft, and a transmission belt connecting the two transmission wheels.

[0016] By adopting the above technical solutions, the drive motor drives the drive shaft to rotate through the transmission belt structure, and the two transmission belts are synchronously driven by the rotating drive shaft. The structure is simple, the accuracy is high, and the cost is low.

[0017] Further set as: The guiding assembly includes a guide rail arranged on the wall panel and a slider slidably arranged on the guide rail. The guiding assembly is set as two groups and respectively corresponds to both ends of the tension roller. Both ends of the tension roller are respectively connected to the two sliders and are connected to the transmission belt through the sliders.

[0018] By adopting the above technical solution, the slider cooperates with the guide rail to guide the movement of the tensioning roller, thereby improving the accuracy of the tensioning roller.

[0019] It is further set that: the second tensioning adjustment member is two driving cylinders respectively arranged at both ends of the tensioning roller, and the driving cylinders are respectively connected to the wall panel and the tensioning roller.

[0020] By adopting the above technical solution, the two driving cylinders drive both ends of the tensioning roller to drive the tensioning roller to achieve stable movement, thereby improving the accuracy of the tensioning roller.

[0021] It is further set that: both ends of the tensioning roller corresponding to the second tensioning adjustment member are connected to the driving cylinder through sliding seats, the sliding seats are slidably arranged on the wall panel, and the sliding seats are provided with placing grooves having openings for placing the tensioning roller, and bolts pass through the tensioning roller and are threadedly connected to the sliding seats to limit the tensioning roller from disengaging from the placing groove.

[0022] By adopting the above technical solution, the placing groove cooperates with the bolt structure to achieve convenient assembly of the tensioning roller.

[0023] In summary, the present utility model has the following beneficial effects: the adjustment range of the present utility model is larger, and it can better adapt to emergencies, thereby improving the reliability of the mechanism. Description of the Drawings

[0024] Figure 1 It is a structural schematic diagram of the embodiment;

[0025] Figure 2 It is a partial structural schematic diagram of the embodiment;

[0026] Figure 3 It is another partial structural schematic diagram of the embodiment.

[0027] In the figure: 1, wall panel; 2, tensioning roller; 3, first tensioning adjustment member; 31, belt pulley; 32, transmission belt; 33, drive assembly; 331, drive shaft; 332, drive motor; 333, transmission wheel; 334, transmission belt; 4, drive cylinder; 5, guiding assembly; 51, guide rail; 52, slider; 6, sliding seat; 7, placing groove; 8, bolt. Detailed Description of the Embodiment

[0028] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0029] Reference Figures 1 to 3, A tension adjustment mechanism for a feeding and traction unit, comprising two wall panels 1 and a tension roller 2 movably arranged between the two wall panels 1. The number of tension rollers 2 is set to at least two, preferably two, and each tension roller 2 is provided with a tension adjustment member for driving its movement. The tension adjustment member drives the tension roller 2 to move radially along it.

[0030] The two tension adjustment members are respectively a first tension adjustment member 3 and a second tension adjustment member. The first tension adjustment member 3 is for belt adjustment, and the second tension adjustment member is for cylinder adjustment.

[0031] The first tension adjustment member 3 includes two belt pulleys 31 rotatably arranged on the wall panel 1, a transmission belt 32 connecting the two belt pulleys 31, and a driving assembly 33 for driving the belt pulley 31 to rotate. One of the tension rollers 2 is connected to the transmission belt 32. The two belt pulleys 31 and the transmission belt 32 are set in two groups, and the two groups are respectively arranged on the two wall panels 1 and respectively correspond to both ends of the tension roller 2. Both ends of the tension roller 2 are respectively connected to the two transmission belts 32, and the driving assembly 33 drives the two transmission belts 334 to move synchronously; the transmission belt 32 is a synchronous belt.

[0032] A guiding assembly 5 for guiding the tension roller 2 to reciprocate radially along it is provided on the tension roller 2 corresponding to the first tension adjustment member 3. The guiding assembly 5 includes a guide rail 51 fixedly arranged on the wall panel 1 and a slider 52 slidably arranged on the guide rail 51. The guiding assembly 5 is set in two groups and is respectively arranged on the two wall panels 1 and respectively correspond to both ends of the tension roller 2. Both ends of the tension roller 2 are respectively fixedly connected to the two sliders 52 and are respectively fixedly connected to the two transmission belts 32 through the two sliders 52.

[0033] The driving assembly 33 includes a driving shaft 331 respectively fixedly connected to the two relatively belt pulleys 31 on the corresponding two transmission belts 32, a driving motor 332 fixedly arranged on the wall panel 1, a transmission wheel 333 fixedly installed on the output shaft of the driving motor 332 and one end of the driving shaft 331, and a transmission belt 334 connecting the two transmission wheels 333.

[0034] The second tension adjustment member is two driving cylinders 4 respectively arranged at both ends of the tension roller 2. The driving cylinders 4 are respectively connected to the wall panel 1 and the tension roller 2. Both ends of the tension roller 2 corresponding to the second tension adjustment member are connected to the driving cylinders 4 through sliding seats 6. The sliding seats 6 are set in two and are respectively slidably arranged on the two wall panels 1. A placement groove 7 with an upward opening for placing the tension roller 2 is provided on the sliding seat 6. A bolt 8 passes through the tension roller 2 and is threadedly connected to the sliding seat 6 to limit the tension roller 2 from disengaging from the placement groove 7. The cylinder body of the driving cylinder 4 is hinged to the wall panel 1, and the piston rod is fixedly connected to the sliding seat 6.

[0035] This specific embodiment is only an interpretation of the present utility model and does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A tensioning adjustment mechanism for a feed traction unit, comprising a wall panel (1) and a tensioning roller (2) movably arranged on the wall panel (1), characterized in that: The tensioning rollers (2) are arranged in at least two numbers, and each tensioning roller (2) is provided with a tensioning adjustment component for driving the tensioning roller to move, and the tensioning adjustment component drives the tensioning roller (2) to move in its radial direction.

2. The tensioning adjustment mechanism of the feed traction unit according to claim 1 is characterized in that: The number of the tensioning rollers (2) is set to two, the number of the tensioning adjustment components is set to two and they are respectively a first tensioning adjustment component (3) and a second tensioning adjustment component, the first tensioning adjustment component (3) is belt-adjusted, and the second tensioning adjustment component is cylinder-adjusted.

3. The tensioning adjustment mechanism of the feed traction unit according to claim 2 is characterized in that: The first tensioning and adjusting member (3) comprises two pulleys (31) rotatably arranged on the wall panel (1), a transmission belt (32) connecting the two pulleys (31), and a driving assembly (33) driving the pulleys (31) to rotate, wherein one of the tensioning rollers (2) is connected to the transmission belt (32).

4. The tensioning adjustment mechanism of the feed traction unit according to claim 3 is characterized in that: The two pulleys (31) and the transmission belt (32) are arranged in two groups and correspond to the two ends of the tensioning roller (2), respectively. The two ends of the tensioning roller (2) are respectively connected to the two transmission belts (32), and the driving component (33) drives the two transmission belts (334) to move synchronously.

5. The tensioning adjustment mechanism of the feed traction unit according to claim 3 is characterized in that: A guide assembly (5) for guiding the tensioning roller (2) to reciprocate in its radial direction is provided on the tensioning roller (2) corresponding to the first tensioning adjustment component (3).

6. The tension adjustment mechanism of the feed traction unit according to claim 4, characterized in that: The driving assembly (33) comprises a driving shaft (331) connected to two opposite pulleys (31) on two corresponding driving belts (32), a driving motor (332) arranged on the wall panel (1), a transmission wheel (333) installed on the driving motor (332) and the driving shaft (331), and a transmission belt (334) connecting the two transmission wheels (333).

7. The tension adjustment mechanism of the feed traction unit according to claim 5, characterized in that: The guide assembly (5) comprises a guide rail (51) arranged on the wall panel (1) and a slider (52) slidably arranged on the guide rail (51); the guide assembly (5) is arranged in two groups and corresponds to the two ends of the tensioning roller (2) respectively; the two ends of the tensioning roller (2) are respectively connected to the two sliders (52) and connected to the transmission belt (32) through the slider (52).

8. The tension adjustment mechanism of the feed traction unit according to claim 2, characterized in that: The second tensioning and adjusting components are two driving cylinders (4) respectively arranged at the two ends of the tensioning roller (2), and the driving cylinders (4) are respectively connected to the wallboard (1) and the tensioning roller (2).

9. The tensioning adjustment mechanism of the feed traction unit according to claim 8, characterized in that: The two ends of the tensioning roller (2) corresponding to the second tensioning adjustment member are connected to the driving cylinder (4) via a slide seat (6); the slide seat (6) is slidably arranged on the wall panel (1); the slide seat (6) is provided with a placement groove (7) having an opening and for placing the tensioning roller (2); a bolt (8) passes through the tensioning roller (2) and is threadedly connected to the slide seat (6) to limit the tensioning roller (2) from leaving the placement groove (7).

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