Protective film non-crimping rewinding mechanism based on dynamic tension adjustment

Abstract

The utility model discloses a protective film non-hemming rewinding mechanism based on dynamic tension adjustment, which relates to the technical field of protective film rewinding and comprises a base, a top plate is mounted above the base, a feeding shaft is arranged at one end of the base, and a winding shaft is arranged at the other end of the base. The rewinding device comprises a base, a top plate is arranged on the base, two winding shafts used for guiding a protective film are arranged at the bottom of the top plate, a deviation rectifying and limiting assembly used for conducting limiting and deviation rectifying on the protective film is installed on one side of the base, and a tensioning assembly is further arranged on the base. The rotating disc drives the second two-way threaded rod to rotate, the second two-way threaded rod drives the two moving blocks to move face to face or back to back, and the two moving blocks drive the rolling shafts to move face to face or back to back, so that the tension of the protective film is adjusted, and the problem that the product quality is affected due to the fact that the protective film is curled, wrinkled, stretched, deformed and the like is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film rewinding, in particular to a protective film non-curling rewinding mechanism based on dynamic tension adjustment. Background Art

[0002] With the improvement of production automation, the efficiency requirements for protective film rewinding are getting higher and higher. The curl-free rewinding mechanism significantly improves the rewinding efficiency by optimizing the rewinding process, reducing downtime and operation complexity. During the rewinding process, the curling problem of the protective film not only affects the appearance quality of the product, but also may affect its performance. The curl-free rewinding mechanism ensures that the protective film has no curling after rewinding by accurately controlling various parameters in the rewinding process, thereby ensuring product quality.

[0003] Chinese patent CN215325984U discloses a bubble-free rewinding system for removing static electricity, including a box body, a transition mechanism, a correction mechanism, a light sensing mechanism, a roller-pressing destaticizing mechanism, a cutting mechanism, a material receiving mechanism, a transmission mechanism and an industrial control host; the movement of the feeding shaft is controlled by the industrial control host, which reduces the labor used for feeding, and can accurately control the tension of the material to avoid curling caused by excessive tension of the material, and can realize unified collection of materials to avoid manpower and physical losses caused by frequent collection of materials.

[0004] When the above-mentioned prior art is in use, the tension of the material is changed by changing the positional relationship between the first rolling axis and the second rolling axis. However, when changing the tension, only the tension that is too small can be adjusted. When the tension is too large, the adjustment degree is limited. When the tension is too large, it will cause the winding to be too tight, and the protective film is prone to wrinkles, especially at the edge. Obvious curling may occur, affecting the appearance quality of the product, and the protective film may suddenly break due to excessive tension. Utility Model Content

[0005] In view of the above problems, a protective film curling-free rewinding mechanism based on dynamic tension adjustment is provided, which solves the technical problem of being unable to adjust when the tension is too large by driving two rolling shafts to move toward or away from each other.

[0006] In order to solve the problems of the prior art, the utility model provides a protective film non-curling rewinding mechanism based on dynamic tension adjustment, comprising a base, a top plate installed above the base, a loading shaft arranged at one end of the base, a winding shaft arranged at the other end of the base, two rolling shafts for guiding the protective film are arranged at the bottom of the top plate, a deviation correction and limit assembly for limiting the position and deviation of the protective film is installed on one side of the base, a tensioning assembly is also provided on the base, the tensioning assembly comprises two rolling shafts arranged below the rolling shaft and a driving component for driving the two rolling shafts to move toward or away from each other, and a defoaming assembly for removing bubbles in the protective film is arranged at one end of the top plate.

[0007] Preferably, the driving component comprises a second bidirectional threaded rod, a rotating disk and a moving block;

[0008] A rectangular through groove is provided on the base, the second bidirectional threaded rod is arranged in the rectangular through groove, and one end of the second bidirectional threaded rod passes through the base and extends outward; the turntable is installed on the extended end of the second bidirectional threaded rod; the moving block is arranged on the second bidirectional threaded rod, and one end of the moving block is connected to the rolling shaft.

[0009] Preferably, limit sliding blocks are arranged on both sides of the moving block below the rolling shaft, and limit sliding grooves for the limit sliding blocks to move are provided on the base.

[0010] Preferably, the correction limit assembly includes a correction seat, a correction shaft and a correction disk; the correction seat is installed on the base; the correction shaft is arranged in the correction seat; the two correction disks are slidably arranged on the correction shaft towards or away from each other, and an adjustment component for driving the two correction disks to move is arranged on one side of the transmission shaft below the top plate.

[0011] Preferably, the adjusting component includes a fixed seat, a first bidirectional threaded rod, a driving disk, a movable disk and a connecting plate; the fixed seat is arranged below the top plate and is located on one side of the winding shaft; the first bidirectional threaded rod is arranged in the fixed seat, and one end of the first bidirectional threaded rod passes through the fixed seat and extends outward; the driving disk is arranged at the extended end of the first bidirectional threaded rod; the movable disk is arranged on the first bidirectional threaded rod; the connecting plate is installed below the movable disk, and one end of the connecting plate is connected to the deviation correction disk.

[0012] Preferably, a connecting block is installed above the movable plate, a sliding rod is arranged above the first bidirectional threaded rod in the fixed seat, and the connecting block is slidably arranged on the sliding rod.

[0013] Preferably, the defoaming assembly includes a mounting frame, a fixed pressure cylinder, a first threaded rod, a knob and a movable pressure cylinder; the mounting frame is arranged at one end of the top plate; the fixed pressure cylinder is installed on the mounting frame; the first threaded rod is threadedly connected to the mounting frame; the knob is installed at one end of the first threaded rod; and the movable pressure cylinder is installed at the other end of the first threaded rod.

[0014] Preferably, first sliding blocks are provided on both sides of the movable pressing cylinder, and first sliding grooves for the first sliding blocks to move are provided on the side walls of the mounting frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. When the rewinding tension of the protective film needs to be adjusted, the turntable is rotated to drive the second bidirectional threaded rod to rotate, and the second bidirectional threaded rod drives the two moving blocks to move toward or away from each other, and the two moving blocks drive the rolling shaft to move toward or away from each other, so as to adjust the tension of the protective film. Not only can the tension be adjusted when it is too large, but also when it is too small, so as to prevent the protective film from curling, wrinkling, stretching deformation and other problems that affect the quality of the product.

[0017] 2. By rotating the driving disk, the driving disk drives the first bidirectional threaded rod in the fixed seat to rotate, the first bidirectional threaded rod drives the movable disk to move, the movable disk drives the connecting plate, and the connecting plate drives the correcting disk to adjust along the correcting axis, so as to adapt to the protective films of different widths to correct and limit them.

[0018] 3. When the protective film passes through the defoaming component, the distance between the movable pressing cylinder and the fixed pressing cylinder is adjusted until the movable pressing cylinder and the fixed pressing cylinder are attached to the protective film, so as to remove the bubbles in the protective film. It can also adapt to protective films of different thicknesses to prevent the product appearance quality of the protective film from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of a protective film non-curling rewinding mechanism based on dynamic tension adjustment from a first viewing angle.

[0020] Figure 2 It is a stereoscopic diagram of a tensioning component in a protective film non-curling rewinding mechanism based on dynamic tension adjustment from a first viewing angle.

[0021] Figure 3 It is a three-dimensional diagram of the deviation correction and limiting component in the protective film non-curling rewinding mechanism based on dynamic tension adjustment.

[0022] Figure 4 It is a stereoscopic diagram of a defoaming component in a protective film curling-free rewinding mechanism based on dynamic tension adjustment.

[0023] Figure 5 It is a side view of a protective film non-curling rewinding mechanism based on dynamic tension adjustment in working condition.

[0024] The numbers in the figure are: 1. base; 2. top plate; 3. feeding shaft; 4. winding shaft; 5. transmission shaft; 6. correction and limiting assembly; 61. correction seat; 62. correction shaft; 63. correction disk; 64. fixed seat; 65. first two-way threaded rod; 66. driving disk; 67. moving disk; 68. connecting plate; 69. connecting block; 610. slide rod; 7. tensioning assembly; 71. rolling shaft; 72. second two-way threaded rod; 73. turntable; 74. moving block; 75. limiting slider; 76. limiting slide groove; 8. defoaming assembly; 81. mounting frame; 82. fixed pressure cylinder; 83. first threaded rod; 84. knob; 85. moving pressure cylinder; 86. first slide groove; 87. first slider. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figures 1 to 5 As shown, the utility model provides a protective film non-curling rewinding mechanism based on dynamic tension adjustment, including a base 1, a top plate 2 is installed above the base 1, a feeding shaft 3 is arranged at one end of the base 1, and a winding shaft 4 is arranged at the other end of the base 1, and two rolling shafts 5 for guiding the protective film are arranged at the bottom of the top plate 2, and a correction and limiting component 6 for limiting the deviation of the protective film is installed on one side of the base 1. A tensioning component 7 is also provided on the base 1, and the tensioning component 7 includes two rolling shafts 71 arranged below the rolling shaft 5 and a driving component for driving the two rolling shafts 71 to move toward or away from each other, and a defoaming component 8 for removing bubbles in the protective film is arranged at one end of the top plate 2.

[0027] When the protective film is rewound, the protective film is transmitted from the feeding shaft 3 in sequence through the correcting and limiting component 6, the rolling shaft 71, the conveying shaft 5 and the defoaming component 8 until the protective film is rewound by the reeling shaft 4. When the protective film passes through the correcting and limiting component 6, the correcting and limiting component 6 is used to correct the deviation of the protective film, and the tension is adjusted by the two driving rolling shafts 71 moving toward or away from each other, and the defoaming in the protective film is removed through the defoaming component 8, and finally the protective film is rewound by the reeling shaft 4, thereby completing the rewinding of the protective film.

[0028] See also Figure 1 to Figure 2 As shown, the driving component includes a second bidirectional threaded rod 72, a turntable 73 and a moving block 74; a rectangular through groove is opened on the base 1, and the second bidirectional threaded rod 72 is arranged in the rectangular through groove, and one end of the second bidirectional threaded rod 72 passes through the base 1 and extends outward; the turntable 73 is installed on the extended end of the second bidirectional threaded rod 72; the moving block 74 is arranged on the second bidirectional threaded rod 72, and one end of the moving block 74 is connected to the rolling shaft 71.

[0029] When the rewinding tension of the protective film needs to be adjusted, the turntable 73 is rotated, and the turntable 73 drives the second bidirectional threaded rod 72 to rotate, and the second bidirectional threaded rod 72 drives the two moving blocks 74 to move toward or away from each other, and the two moving blocks 74 drive the rolling shaft 71 to move toward or away from each other, thereby adjusting the tension of the protective film. Not only can the tension be adjusted when it is too large, but also when it is too small, thereby preventing the protective film from curling, wrinkling, stretching deformation and other problems that affect the quality of the product.

[0030] See also Figure 2 As shown, limit sliders 75 are arranged on both sides of the moving block 74 below the rolling shaft 71 , and limit sliding grooves 76 for the limit sliders 75 to move are provided on the base 1 .

[0031] By rotating the turntable 73, the two moving blocks 74 drive the rolling shaft 71 to move toward or away from each other, and the limiting sliders 75 on both sides of the rolling shaft 71 move on the limiting sliding grooves 76 provided on the base 1, thereby increasing the stability of the movement of the rolling shaft 71.

[0032] See also Figure 3 As shown, the deviation correction and limiting assembly 6 includes a deviation correction seat 61, a deviation correction shaft 62 and a deviation correction disk 63; the deviation correction seat 61 is installed on the base 1; the deviation correction shaft 62 is arranged in the deviation correction seat 61; the two deviation correction disks 63 can be slidably arranged on the deviation correction shaft 62 toward or away from each other, and an adjusting component for driving the two deviation correction disks 63 to move is arranged on one side of the winding shaft 5 below the top plate 2.

[0033] Before the protective film passes through the transfer reel 5, it first passes through the correction and limiting assembly 6. The correction disk 63 on the correction and limiting assembly 6 corrects and limits the protective film, which facilitates subsequent processing and prevents the protective film from curling.

[0034] See also Figure 3 As shown, the adjusting component includes a fixed seat 64, a first bidirectional threaded rod 65, a driving disk 66, a movable disk 67 and a connecting plate 68; the fixed seat 64 is arranged below the top plate 2 and is located on one side of the transmission shaft 5; the first bidirectional threaded rod 65 is arranged in the fixed seat 64, and one end of the first bidirectional threaded rod 65 passes through the fixed seat 64 and extends outward; the driving disk 66 is arranged at the extended end of the first bidirectional threaded rod 65; the movable disk 67 is arranged on the first bidirectional threaded rod 65; the connecting plate 68 is installed below the movable disk 67, and one end of the connecting plate 68 is connected to the correction disk 63.

[0035] By rotating the driving disk 66, the driving disk 66 drives the first bidirectional threaded rod 65 in the fixed seat 64 to rotate, and the first bidirectional threaded rod 65 drives the movable disk 67 to move, and the movable disk 67 drives the connecting plate 68, and the connecting plate 68 drives the correcting disk 63 to adjust along the correcting axis 62, so as to adapt to the protective films of different widths to correct and limit them.

[0036] See also Figure 3 As shown, a connecting block 69 is installed above the movable plate 67 , a sliding rod 610 is arranged above the first bidirectional threaded rod 65 in the fixed seat 64 , and the connecting block 69 is slidably arranged on the sliding rod 610 .

[0037] By rotating the driving disk 66, the driving disk 66 drives the movable disk 67 to move through the first bidirectional threaded rod 65, and the connecting block 69 above the movable disk 67 slides on the sliding rod 610, so that the movable disk 67 moves more smoothly and more stably.

[0038] See also Figure 4 As shown, the defoaming assembly 8 includes a mounting frame 81, a fixed pressure cylinder 82, a first threaded rod 83, a knob 84 and a movable pressure cylinder 85; the mounting frame 81 is arranged at one end of the top plate 2; the fixed pressure cylinder 82 is installed on the mounting frame 81; the first threaded rod 83 is threadedly connected to the mounting frame 81; the knob 84 is installed at one end of the first threaded rod 83; and the movable pressure cylinder 85 is installed at the other end of the first threaded rod 83.

[0039] When the protective film passes through the defoaming component 8, the knob 84 is turned to drive the first threaded rod 83 to rotate, and the first threaded rod 83 drives the movable pressing cylinder 85 to move, thereby adjusting the distance between the movable pressing cylinder 85 and the fixed pressing cylinder 82 until the movable pressing cylinder 85 and the fixed pressing cylinder 82 are attached to the protective film, thereby removing the bubbles in the protective film, and adjusting the position of the movable pressing cylinder 85 by turning the knob 84 to adapt to protective films of different thicknesses to prevent the product quality of the protective film from being affected.

[0040] See also Figure 4 As shown, first sliding blocks 87 are provided on both sides of the movable pressing cylinder 85 , and first sliding grooves 86 for the first sliding blocks 87 to move are provided on the side walls of the mounting frame 81 .

[0041] When the movable pressing cylinder 85 is moved by the first threaded rod 83, the first sliding blocks 87 on both sides of the movable pressing cylinder 85 slide in the first sliding groove 86 opened on the inner side wall of the mounting frame 81, so that the movable pressing cylinder 85 is more stable when moving and the movable pressing cylinder 85 is prevented from tilting to one side.

[0042] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A protective film non-curling rewinding mechanism based on dynamic tension adjustment, characterized in that: The invention comprises a base (1), a top plate (2) is installed above the base (1), a feeding shaft (3) is arranged at one end of the base (1), a winding shaft (4) is arranged at the other end of the base (1), two rolling shafts (5) for guiding the protective film are arranged at the bottom of the top plate (2), a deviation correction and limiting assembly (6) for limiting the deviation of the protective film is installed on one side of the base (1), a tensioning assembly (7) is also provided on the base (1), the tensioning assembly (7) comprises two rolling shafts (71) arranged below the rolling shafts (5) and a driving component for driving the two rolling shafts (71) to move toward or away from each other, and a defoaming assembly (8) for removing bubbles in the protective film is arranged at one end of the top plate (2).

2. According to claim 1, a protective film non-curling rewinding mechanism based on dynamic tension adjustment is characterized in that: The driving component comprises a second bidirectional threaded rod (72), a rotating disk (73) and a moving block (74); The base (1) is provided with a rectangular through slot, the second bidirectional threaded rod (72) is arranged in the rectangular through slot, and one end of the second bidirectional threaded rod (72) passes through the base (1) and extends outwards; The rotating disk (73) is mounted on the extended end of the second bidirectional threaded rod (72); The moving block (74) is arranged on the second bidirectional threaded rod (72), and one end of the moving block (74) is connected to the rolling shaft (71).

3. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 2, characterized in that: Limiting slide blocks (75) are arranged on both sides of the moving block (74) below the rolling shaft (71), and limiting sliding grooves (76) for the limiting slide blocks (75) to move are provided on the base (1).

4. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 1, characterized in that: The deflection correction and limiting assembly (6) comprises a deflection correction seat (61), a deflection correction shaft (62) and a deflection correction disk (63); The deviation-correcting seat (61) is installed on the base (1); The deviation correction shaft (62) is arranged in the deviation correction seat (61); The two deflection correction disks (63) are slidably arranged on the deflection correction shaft (62) in a manner that they can move toward or away from each other. An adjusting component for driving the two deflection correction disks (63) to move is arranged below the top plate (2) on one side of the reel shaft (5).

5. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 4, characterized in that: The adjusting component comprises a fixed seat (64), a first bidirectional threaded rod (65), a driving disk (66), a moving disk (67) and a connecting plate (68); The fixing seat (64) is arranged below the top plate (2) and is located on one side of the reel transmission shaft (5); The first bidirectional threaded rod (65) is disposed in the fixing seat (64), and one end of the first bidirectional threaded rod (65) penetrates the fixing seat (64) and extends outward; The driving disk (66) is arranged at the extended end of the first bidirectional threaded rod (65); The movable plate (67) is arranged on the first bidirectional threaded rod (65); The connecting plate (68) is installed below the moving plate (67), and one end of the connecting plate (68) is connected to the deflection correction plate (63).

6. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 5, characterized in that: A connecting block (69) is installed above the movable plate (67), a sliding rod (610) is arranged above the first bidirectional threaded rod (65) in the fixed seat (64), and the connecting block (69) is slidably arranged on the sliding rod (610).

7. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 1, characterized in that The defoaming assembly (8) comprises a mounting frame (81), a fixed pressure cylinder (82), a first threaded rod (83), a knob (84) and a movable pressure cylinder (85); The mounting frame (81) is arranged at one end of the top plate (2); The fixed pressure cylinder (82) is installed on the mounting frame (81); The first threaded rod (83) is threadedly connected to the mounting frame (81); The knob (84) is mounted on one end of the first threaded rod (83); The movable pressing cylinder (85) is installed on the other end of the first threaded rod (83).

8. The protective film non-curling rewinding mechanism based on dynamic tension adjustment according to claim 7, characterized in that: First sliding blocks (87) are provided on both sides of the movable pressing cylinder (85), and a first sliding groove (86) for the first sliding block (87) to move is provided on the side wall of the mounting frame (81).

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