A flexible film material winding device with damping

Abstract

The present invention relates to the technical field of winding devices, specifically a flexible film winding device with damping, which is intended to solve the technical problems in the background technology. The following technical scheme is adopted: it includes an inflatable shaft, one end of the inflatable shaft is extended with a mounting shaft section, the mounting shaft section is a hollow shaft structure and a rotary sealing joint is installed on the outer end, a flange bearing, a drive wheel bearing, and a torque bearing are installed on the mounting shaft section in sequence in the direction away from the inflatable shaft, a mounting flange is mounted on the flange bearing, a drive wheel is mounted on the drive wheel bearing, a torque bearing seat is mounted on the torque bearing, a torque seat is provided between the torque bearing seat and the drive wheel, the torque seat is a circular structure formed by circumferential splicing of the first half circle and the second half circle, the axial ends of the first half circle are respectively fixed to the torque bearing seat and the drive wheel, and the second half circle is screwed on the first half circle by bolts, and a C-shaped damping sleeve is placed between the torque seat and the mounting shaft section.

Description

Technical Field

[0001] The invention relates to the technical field of winding devices, in particular to a flexible film material winding device with damping. Background Art

[0002] The flat panel display industry is the most dynamic and rapidly developing industry today. Flexible film materials are used many times in the manufacturing process of flat panel display devices. Flexible film materials serve as carriers of various components. After the components are transported to the designated location and peeled off from them, the discarded film materials are rolled into rolls with the help of a winding device and collected. There are mainly two types of existing flexible film winding devices: the first is that the drive motor is directly connected to the winding shaft. The structure is simple, but as the winding diameter becomes larger and larger, the winding length will become longer and longer when the drive motor turns the same number of circles, which will cause problems such as inaccurate stopping of components, elongation and deformation of flexible film materials, and overheating of the motor due to stalling. The second is that the drive motor is connected to the winding shaft through a friction plate, as described in the invention patent named "Winding Machine" with publication number "CN202030359U". This method mainly relies on adjusting the length of the compression spring to adjust the pressure between the pressure plate and the friction plate. The friction force can be adjusted by adjusting the spring end face to solve the first technical problem. However, the uneven force output of the spring end face will cause uneven pressure distribution on the contact surface between the pressure plate and the friction plate. The friction plate is more likely to wear where the pressure is high. Over time, the friction plate will show point-shaped, block-shaped, or even semicircular wear. The worn friction plate cannot transmit torque stably, and there will be shaking, jamming, and failure to reel up during winding. In addition, the friction plate will produce dust after wear, which is prohibited for flat panel display companies with very high clean room grade requirements. Summary of the invention

[0003] The present invention aims to solve the technical problem of how to provide a winding device with matching winding speed and unwinding speed and without excessive local wear and generation of much dust.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A flexible film winding device with damping comprises an inflatable shaft, one end of the inflatable shaft extends along its axial direction to form an installation shaft section, the installation shaft section is a hollow shaft structure and a rotary sealing joint is installed on the outer end portion, a flange bearing, a transmission wheel bearing and a torque bearing are installed in sequence on the installation shaft section in a direction away from the inflatable shaft, a mounting flange is mounted on the flange bearing, and the axial sides of the inner ring of the flange bearing are limited and fixed, a transmission wheel bearing is mounted on the transmission wheel bearing, a torque bearing seat is mounted on the torque bearing, a torque seat is arranged between the torque bearing seat and the transmission wheel, and the torque seat is a circular structure formed by circumferential splicing of a first half circle and a second half circle The structure is as follows: the axial ends of the first half circle are respectively fixed to the torsion bearing seat and the transmission wheel, and the second half circle is screwed on the first half circle by bolts. A C-shaped damping sleeve is placed between the torque seat and the mounting shaft section, with the direction away from the air shaft as the outside, the inner end and outer end of the damping sleeve respectively abut the outer end face of the transmission wheel and the inner end face of the torque bearing seat for axial positioning, the outer end face of the inner ring of the torque bearing and the inner end face of the inner ring of the transmission wheel bearing are axially limited and fixed, the inner holes of the torque bearing seat and the transmission wheel are both stepped holes, and the inner end face of the outer ring of the torque bearing and the outer end face of the outer ring of the transmission wheel bearing are axially positioned by the stepped surface of the stepped hole.

[0006] When installing the winding drum, first put the winding drum on the air shaft, rotate the sealing joint to connect the air source, inflate the air source, and the gas passes through the hollow part of the installation shaft section into the air shaft. The convex block on the air shaft expands radially to tighten and fix the winding drum to complete the fixation of the winding drum; when winding the material, first adjust the tightness between the first half circle and the second half circle by tightening the bolt, and then connect the transmission wheel to the output shaft of the motor through a conveyor belt or a transmission chain. The rotation of the motor output shaft drives the rotation of the transmission wheel. The torque seat, the torque bearing seat and the damping sleeve all rotate with the transmission wheel. There is static friction between the installation shaft section and the damping sleeve. Under the action of the static friction, the installation shaft section also rotates, and the winding drum rotates to complete the winding. The tightness of the combination of the first half circle and the second half circle mentioned above will affect the inner diameter of the damping sleeve, thereby affecting the static friction between the damping sleeve and the mounting shaft segment. The so-called "adjustment in place" is to ensure that the maximum resistance that can be overcome by the static friction between the damping sleeve and the mounting shaft segment is the normal pulling force of the flexible film material. When the diameter of the reel becomes larger, causing the linear speed of the reel to be greater than the discharge speed of the flexible film material, the pulling force of the flexible film material on the reel will be greater than the pulling force under normal winding conditions, and the static friction between the damping sleeve and the mounting shaft segment is difficult to overcome the resistance, so slippage occurs between the damping sleeve and the mounting shaft segment, thereby compensating for the difference between the linear speed of the reel and the discharge speed of the flexible film material, thereby ensuring normal material winding.

[0007] The beneficial effects of the present invention are:

[0008] 1) The flexible film winding device with damping of the present invention, through the arrangement of the damping sleeve, the torque seat, etc., when the discharge speed of the flexible film material is less than the linear speed of the winding drum, the damping sleeve and the mounting shaft section will slip, thereby compensating for the difference between the linear speed of the winding drum and the discharge speed of the flexible film material, avoiding the tensile deformation or even fracture of the flexible film material, and also ensuring the accurate parking position of the components and avoiding the motor blocking and overheating;

[0009] 2) The flexible film winding device with damping of the present invention adjusts the tightness between the first half circle and the second half circle of the torque seat by adjusting the bolt, thereby adjusting the inner diameter of the damping sleeve. The damping sleeve is evenly stressed and will not have point-shaped, block-shaped or other wear, and the performance is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the winding device of the present invention;

[0012] Figure 2 It is a schematic diagram of the assembly structure of the transmission wheel, the torque seat and the torque bearing seat of the present invention;

[0013] Figure 3 yes Figure 2 A schematic cross-sectional view of the structure shown;

[0014] Figure 4 It is a structural schematic diagram of the torque seat of the present invention;

[0015] Figure 5 It is a schematic diagram of the structure of the inflatable shaft of the present invention;

[0016] Figure 6 It is a structural schematic diagram of the damping sleeve of the present invention.

[0017] In the figure:

[0018] 1┄ inflatable shaft; 2┄ mounting shaft section; 3┄ rotary sealing joint; 4┄ flange bearing; 5┄ drive wheel bearing; 6┄ torque bearing; 7┄ mounting flange; 8┄ drive wheel; 9┄ torque bearing seat; 10┄ torque seat; 11┄ first half circle; 12┄ second half circle; 13┄ damping sleeve; 14┄ connecting ring; 15┄ first shaft shoulder; 16┄ first nut; 17┄ second shaft shoulder; 18┄ second nut; 19┄ material retaining plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] Reference Figures 1 to 6 The invention discloses a flexible film winding device with damping, comprising an inflatable shaft 1, i.e. a special hollow shaft for winding and unwinding, the middle of which is connected to an air source, and the surface of which can protrude after high-pressure inflation and retract rapidly after deflation; one end of the inflatable shaft 1 extends along its axial direction to form a mounting shaft section 2, the mounting shaft section 2 is a hollow shaft structure and a rotary sealing joint 3 is installed at the outer end, i.e. a joint that can realize simultaneous rotation and sealing; a flange bearing 4, a transmission bearing 5, a transmission bearing 6, a transmission bearing 7, a transmission bearing 8, a transmission bearing 9, a transmission bearing 10, a transmission bearing 11, a transmission bearing 12, a transmission bearing 13, a transmission bearing 14, a transmission bearing 15, a transmission bearing 16, a transmission bearing 17, a transmission bearing 18, a transmission bearing 19, a transmission bearing 20, a transmission bearing 21, a transmission bearing 22, a transmission bearing 23, a transmission bearing 24, a transmission bearing 25, a transmission bearing 26, a transmission bearing 27, a transmission bearing 30, a transmission bearing 31, a transmission bearing 32, a transmission bearing 14, a transmission bearing 15, a transmission bearing 16, a transmission bearing 17, a transmission bearing 18, a transmission bearing 19, a transmission bearing 20, a transmission bearing 19, a transmission bearing 21, a transmission bearing 11, a transmission bearing 12, a transmission bearing 13, a transmission bearing 14, a transmission bearing 15, a transmission bearing 16, a transmission bearing 17, a transmission bearing 18, a transmission bearing 19, a transmission bearing 10, a transmission bearing 11, a transmission bearing 12, a transmission bearing 13, a transmission bearing 14, a transmission bearing 15, a transmission bearing 16, a transmission bearing 17, a transmission bearing 18, a transmission bearing 1 The driving wheel bearing 5 and the torque bearing 6 are installed by fitting the inner ring of the bearing on the installation shaft section 2; the flange bearing 4 is provided with a mounting flange 7, that is, the mounting flange 7 is fitted on the outer ring of the flange bearing 4; and the inner ring of the flange bearing 4 is fixed on both sides of the axial direction, and the axis limit fixation can be adopted by a shaft shoulder, a shaft ring, a retaining ring and other structures; the driving wheel bearing 5 is provided with a driving wheel 8, that is, the driving wheel 8 is fitted on the outer ring of the driving wheel bearing 5; the torque bearing 6 is provided with a torque bearing seat 9, that is, the torque bearing The seat 9 is interference fit on the outer ring of the torque bearing 6; a torque seat 10 is provided between the torque bearing seat 9 and the transmission wheel 8, and the torque seat 10 is a circular structure formed by circumferentially splicing the first half circle 11 and the second half circle 12. The axial ends of the first half circle 11 are respectively fixed to the torque bearing seat 9 and the transmission wheel 8, and the second half circle 12 is screwed on the first half circle 11 by bolts. A C-shaped damping sleeve 13 is placed between the torque seat 10 and the mounting shaft section 2. To achieve the damping effect, the damping sleeve 13 needs to be tightened by the torque seat 10. The compression can be tightly installed on the shaft section 2, which is easy to design; with the direction away from the inflatable shaft 1 as the outside, the inner end and outer end of the damping sleeve 13 respectively abut the outer end surface of the transmission wheel 8 and the inner end surface of the torque bearing seat 9 for axial positioning, the outer end surface of the inner ring of the torque bearing 6 and the inner end surface of the inner ring of the transmission wheel bearing 5 are axially limited and fixed, the inner holes of the torque bearing seat 9 and the transmission wheel 8 are both stepped holes, and the inner end surface of the outer ring of the torque bearing 6 and the outer end surface of the outer ring of the transmission wheel bearing 5 are axially positioned by the stepped surface of the stepped hole.

[0021] As a preferred structure of the torque seat 10, a connecting ring 14 is integrally formed on the inner side of the first half circle 11, and the connecting ring 14 is coaxial with the first half circle 11. The inner end face of the connecting ring 14 is tightly connected to the transmission wheel 8, and the outer end face of the first half circle 11 is tightly connected to the torque bearing seat 9. The tightening connection can be made by fasteners such as screws and bolts. The provision of the connecting ring 14 makes the connection between the torque seat 10 and the transmission wheel 8 more convenient, ensuring the reliability of the structural performance. Furthermore, the axial length of the second half circle 12 is less than the axial length of the first half circle 11. This length relationship forms a gap between the second half circle 12 and the connecting ring 14, which, on the one hand, provides installation space for the fasteners connecting the connecting ring 14 and the transmission wheel 8, and on the other hand, avoids the difficulty of adjustment caused by axial compression of the second half circle 12.

[0022] Preferably, the damping sleeve 13 is made of UPE material, which is ultra-high molecular polyethylene. UPE has good wear resistance, self-lubrication and toughness. The damping sleeve 13 made of it has the advantages of long service life and no dust, and can be applied to flat panel display companies with high requirements for clean room level.

[0023] As a preferred structure of the mounting flange 7, the mounting flange 7 is a stepped shaft structure, the large diameter shaft section is located on the outside and the end face is provided with a mounting hole. During installation, a hole matching the outer diameter of the small diameter shaft is opened on the mounting plate, the small diameter shaft is interference fit into the hole, and the inner end face of the large diameter shaft is pressed against the outer surface of the mounting plate, and the large diameter shaft is fixed to the mounting plate through the mounting hole and the fastener.

[0024] Furthermore, the inner end surface of the inner ring of the flange bearing 4 is positioned by the first shaft shoulder 15, and the outer end surface of the inner ring of the flange bearing 4 is positioned by the first nut 16 screwed onto the mounting shaft section 2. The structure is simple and the positioning is reliable.

[0025] Furthermore, the inner end face of the inner ring of the transmission wheel bearing 5 is positioned by the second shaft shoulder 17, and the outer end face of the inner ring of the torque bearing 6 is positioned by the second nut 18 screwed on the mounting shaft section 2. The structure is simple and the positioning is reliable.

[0026] Furthermore, a material blocking plate 19 is fixed on the air shaft 1, and the material blocking plate 19 can be fixed on the air shaft 1 by fasteners such as bolts. Figure 1 The structure in the embodiment is that the material blocking plate 19 is fixed by three connecting claws, the connecting claws are Z-shaped, and one end is fixed on the end surface of the air shaft 1, and the other end is fixed on the material blocking plate 19. The material blocking plate 19 prevents the flexible film material from being separated from the air shaft 1 and entangled with the parts on the mounting shaft section 2, thereby damaging the device.

[0027] The same or similar numbers in the drawings of the embodiments correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A flexible film material winding device with damping, comprising an inflatable shaft (1), characterized in that: One end of the inflatable shaft (1) extends along its axial direction to form an installation shaft section (2). The installation shaft section (2) is a hollow shaft structure and a rotary sealing joint (3) is installed on the outer end thereof. A flange bearing (4), a transmission wheel bearing (5), and a torque bearing (6) are installed in sequence on the installation shaft section (2) in a direction away from the inflatable shaft (1). A mounting flange (7) is sleeved on the flange bearing (4), and the axial sides of the inner ring of the flange bearing (4) are limited and fixed. A transmission wheel (8) is sleeved on the transmission wheel bearing (5), and a torque bearing seat (9) is sleeved on the torque bearing (6). The torque bearing seat (9) and the transmission wheel ( A torque seat (10) is provided between the first and second half circles (11 and 12), the torque seat (10) being a circular structure formed by circumferentially splicing a first half circle (11) and a second half circle (12), the axial ends of the first half circle (11) being respectively fixedly connected to the torque bearing seat (9) and the transmission wheel (8), and the second half circle (12) being screwed onto the first half circle (11) by bolts, a C-shaped damping sleeve (13) being placed between the torque seat (10) and the mounting shaft section (2), with the direction away from the inflatable shaft (1) being the outside, the inner end and the outer end of the damping sleeve (13) respectively abutting against the outer end surface of the transmission wheel (8) and the inner end surface of the torque bearing seat (9), Axially positioned, the outer end face of the inner ring of the torsion bearing (6) and the inner end face of the inner ring of the transmission wheel bearing (5) are axially limited and fixed, the inner holes of the torsion bearing seat (9) and the transmission wheel (8) are both stepped holes, and the inner end face of the outer ring of the torsion bearing (6) and the outer end face of the outer ring of the transmission wheel bearing (5) are axially positioned through the stepped surface of the stepped hole; a connecting ring (14) is integrally formed on the inner side of the first half ring (11), the connecting ring (14) is coaxial with the first half ring (11), the inner end face of the connecting ring (14) is tightly connected to the transmission wheel (8), and the outer end face of the first half ring (11) is connected to the torsion bearing seat (9). The second half ring (12) is fastened and connected; the axial length of the second half ring (12) is smaller than the axial length of the first half ring (11); the mounting flange (7) is a stepped shaft structure, the large diameter shaft section is located on the outside and the end face is provided with a mounting hole; the inner end face of the inner ring of the flange bearing (4) is positioned by a first shaft shoulder (15), and the outer end face of the inner ring of the flange bearing (4) is positioned by a first nut (16) screwed onto the mounting shaft section (2); the inner end face of the inner ring of the transmission wheel bearing (5) is positioned by a second shaft shoulder (17), and the outer end face of the inner ring of the torque bearing (6) is positioned by a second nut (18) screwed onto the mounting shaft section (2).

2. A damped flexible film winding device according to claim 1, characterized in that: The damping sleeve (13) is made of UPE material.

3. The flexible film material winding device with damping according to claim 1, characterized in that: A material blocking plate (19) is fixed on the pneumatic shaft (1).

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