A roller assembly with adjustable gap

Abstract

An adjustable gap roller assembly includes a drive wheel assembly, an extrusion wheel assembly, and a drive assembly. The drive wheel assembly includes a second bracket with a second rotating shaft at both ends, on which the drive wheel is fixed. The extrusion wheel assembly includes a first bracket with a first rotating shaft at both ends, on which the extrusion wheel is fixed. The extrusion wheel assembly also includes a sliding plate and a cylinder, with the output end of the cylinder fixedly connected to the sliding plate. One end of the sliding plate is rotatably connected to the bottom of the first bracket, and the other end of the sliding plate is equipped with a first motor. A lead screw is fixed to the output shaft of the first motor, and a lead screw nut is fitted onto the lead screw. An adjusting block is fixed to the bottom of the lead screw nut, and the bottom of the adjusting block contacts the first bracket but is not fixed. An elongated hole is provided at the bottom of the adjusting block, and a connecting rod is fixed to the first bracket, with the connecting rod positioned within the elongated hole. This application enables rapid adjustment of the gap between the extrusion wheel and the drive wheel.

Description

Technical Field

[0001] This application relates to the field of fluid transport and coating equipment technology, and in particular to a roller coating assembly with adjustable gap. Background Technology

[0002] In industries such as composite material molding and automotive sealing, roller coating is a common and efficient method of applying adhesives. Traditional roller coating equipment typically uses a fixed or manually adjustable gap between the rollers. A fixed gap cannot accommodate adhesives of different viscosities or different coating amounts; manual adjustment cannot be dynamically changed during production, making it difficult to achieve complex or variable coating trajectories and adhesive volume control.

[0003] In existing technologies, manual adjustments cannot be dynamically changed during the production process, making it difficult to control complex or changing adhesive application trajectories and amounts. Even with partially automatic adjustment structures, when the gaps between the two ends of the extrusion roller and the drive roller differ due to wear or other reasons, uneven adhesive thickness occurs on the drive roller, leading to uneven adhesive application thickness.

[0004] To address this, we propose a roll-on assembly with adjustable gap. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a roller assembly with an adjustable gap, which can quickly adjust the gap between the extrusion roller and the drive roller, and is suitable for different glue thicknesses or different glues.

[0006] The technical solution adopted in this application is as follows:

[0007] A roll-on assembly with adjustable gap, comprising:

[0008] The base has a plastic box fixed to it.

[0009] The drive wheel assembly includes a second bracket, which is fixed on the base. The second bracket has the same second rotating shaft at both ends. The second rotating shaft is located above the plastic box, and the drive wheel is fixed on the second rotating shaft.

[0010] The extrusion roller assembly includes a first bracket, with the same first rotating shaft at both ends of the first bracket. The first rotating shaft is located above the glue box, and an extrusion roller is fixed on the first rotating shaft.

[0011] Drive assembly, used to drive the drive wheel and the extrusion wheel;

[0012] A measuring component is used to measure the clearance between the two ends of the extrusion wheel and the drive wheel.

[0013] The extrusion wheel assembly also includes a sliding plate and a cylinder. The cylinder is fixed on the base, and the output end of the cylinder is fixedly connected to the sliding plate. A slider is fixed at the bottom of the sliding plate, and the slider is slidably mounted on the slide rail, which is fixed on the base.

[0014] One end of the sliding plate is rotatably connected to the bottom of the first bracket, and the other end of the sliding plate is equipped with a first motor. The output shaft of the first motor is fixed with a lead screw, and a lead screw nut is matched on the lead screw. An adjusting block is fixed at the bottom of the lead screw nut. The bottom of the adjusting block is in contact with the first bracket but is not fixed. An elongated hole is provided at the bottom of the adjusting block. A connecting rod is fixed on the first bracket and is located in the elongated hole.

[0015] Its further features are:

[0016] The measuring assembly includes a first detection rod, a first distance sensor, a second detection rod, and a second distance sensor. The first detection rod and the second detection rod are respectively fixed at both ends of the first bracket, and the first distance sensor and the second distance sensor are respectively fixed at the end of the plastic box near the drive wheel.

[0017] The axis of the drive wheel and the axis of the extrusion wheel are in the same plane. In this plane, the side of the extrusion wheel near the drive wheel and the side of the first and second detection rods near the drive wheel are in the same straight line. The distance from the first and second ranging sensors to the drive wheel is the same.

[0018] The drive assembly includes a second motor, a first pulley fixed on the output shaft of the second motor, the second motor fixed on a base, a third shaft and a fourth shaft spaced apart on the base, both the third shaft and the fourth shaft being rotatably connected to the base, a second pulley fixed on the third shaft, the first pulley and the second pulley being connected by a belt, a third gear fixed on the third shaft, and a fourth gear fixed on the fourth shaft; the third gear and the fourth gear mesh.

[0019] A second gear is fixed to one end of the second shaft, and the second gear meshes with the third gear.

[0020] A first gear is fixed on the first rotating shaft, and the first gear meshes with a fourth gear.

[0021] An electromagnet is embedded in the bottom of the adjustment block, and the first bracket is made of iron.

[0022] A connecting shaft is fixed at one end of the bottom of the first bracket, and the connecting shaft is rotatably connected to the sliding plate.

[0023] There are two cylinders, which are arranged symmetrically.

[0024] There are two slide rails, which are arranged symmetrically.

[0025] The beneficial effects of this application are as follows:

[0026] This application features a compact and reasonable structure, convenient operation, and when the adhesive thickness of the workpiece needs adjustment, the cylinder operates, driving the sliding plate to move along the slide rail. The sliding plate then moves the first support, which in turn moves the extrusion roller via the first rotating shaft. This adjusts the gap between the extrusion roller and the drive roller, thereby adjusting the adhesive thickness on the drive roller and thus the overall adhesive application thickness. Furthermore, the distance the cylinder moves the extrusion roller is approximately 1mm, a small range, which also limits the movement of the first gear, thus not affecting the meshing of the first and fourth gears. This allows for rapid adjustment of the gap between the extrusion roller and the drive roller, making it suitable for different adhesive thicknesses or different types of adhesive.

[0027] In addition, this application also has the following advantages:

[0028] (1) When the gaps between the two ends of the extrusion wheel and the drive wheel, as measured by the first and second ranging sensors, are different, the first motor operates. The output shaft of the first motor drives the lead screw to rotate, the lead screw drives the lead screw nut to move, the lead screw nut drives the adjusting block to move, and the adjusting block drives the connecting rod to move, thereby causing the first bracket to rotate, which in turn drives the extrusion wheel to rotate, thus adjusting the gaps between the two ends of the extrusion wheel and the drive wheel to be the same, ensuring that the glue thickness on the drive wheel is uniform. The first motor adjusts the rotation range of the extrusion wheel to 1mm or even smaller, without affecting the meshing of the first gear and the fourth gear. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this application.

[0030] Figure 2 This is a schematic diagram of the glue box, drive wheel, and extrusion wheel of this application.

[0031] Figure 3 This is a schematic diagram of the base, cylinder, first bracket, etc. of this application.

[0032] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0033] Figure 5 This is a schematic cross-sectional view of the first support and adjusting block of this application. Figure 1 .

[0034] Figure 6 This is a schematic cross-sectional view of the first support and adjusting block of this application. Figure 2 .

[0035] Figure 7 This is a schematic diagram of the first gear, second gear, third gear, fourth gear, etc. of this application.

[0036] Figure 8 This is a bottom view of the adjustment block in this application.

[0037] The components include: 1. base; 2. glue box; 3. drive wheel assembly; 4. extrusion wheel assembly;

[0038] 301. Second bracket; 302. Second rotating shaft; 303. Drive wheel; 304. Second gear;

[0039] 401. First support; 402. First rotating shaft; 403. Extrusion wheel; 404. First gear; 405. Cylinder; 406. Sliding plate; 407. Slide rail; 408. Slider; 409. First motor; 410. Lead screw; 411. Fixing block; 412. Lead screw nut; 413. Adjusting block; 414. Elongated hole; 415. Connecting rod;

[0040] 501. Second motor; 502. First pulley; 503. Second pulley; 504. Belt; 505. Third shaft; 506. Fourth shaft; 507. Third gear; 508. Fourth gear;

[0041] 601, First detection rod; 602, First distance sensor; 603, Second detection rod; 604, Second distance sensor. Detailed Implementation

[0042] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0043] like Figures 1-8 As shown, a roller assembly with adjustable gap includes a base 1, a glue box 2, a drive wheel assembly 3, an extrusion wheel assembly 4, a drive assembly, and a measuring assembly;

[0044] The glue box 2 is fixedly connected to the top of the base 1, and there is a gap between the bottom of the glue box 2 and the top of the base 1. Glue is provided inside the glue box 2.

[0045] The drive wheel assembly 3 includes a second bracket 301, which is fixedly connected to the base 1. A second rotating shaft 302 is provided at both ends of the second bracket 301. The second rotating shaft 302 is located above the plastic box 2. A drive wheel 303 is fixedly sleeved on the second rotating shaft 302. A second gear 304 is fixedly attached to one end of the second rotating shaft 302.

[0046] The drive assembly includes a second motor 501, with a first pulley 502 fixed to the output shaft of the second motor 501. The second motor 501 is fixed to a base 1, and a third rotating shaft 505 and a fourth rotating shaft 506 are spaced apart on the base 1. Both the third and fourth rotating shafts 505 and 506 are rotatably connected to the base 1. A second pulley 503 is fixed to the third rotating shaft 505, and the first pulley 502 and the second pulley 503 are connected by a belt 504. A third gear 507 is fixed to the third rotating shaft 505, and a fourth gear 508 is fixed to the fourth rotating shaft 506; the third gear 507 meshes with the fourth gear 508. A second gear 304 meshes with the third gear 507.

[0047] When the second motor 501 is working, the second motor 501 drives the first pulley 502 to rotate. The first pulley 502 drives the second pulley 503 to rotate through the belt 504. The second pulley 503 drives the third gear 507 to rotate through the third shaft 505. The third gear 507 drives the fourth gear 508 and the second gear 304 to rotate.

[0048] The glue was applied up to the bottom of the drive wheel 303.

[0049] The extrusion wheel assembly 4 includes a first bracket 401, with the same first rotating shaft 402 at both ends of the first bracket 401. An extrusion wheel 403 is fixed on the first rotating shaft 402, and there is a gap between the extrusion wheel 403 and the drive wheel 303. The extrusion wheel assembly 4 also includes a sliding plate 406 and a cylinder 405. One bottom end of the first bracket 401 is rotatably connected to the sliding plate 406. The cylinder 405 is fixed on the base 1, and the output end of the cylinder 405 is fixedly connected to the sliding plate 406. A slider 408 is fixed at the bottom of the sliding plate 406, and the slider 408 is slidably disposed on a slide rail 407, which is fixed on the base 1. A first gear 404 is fixed on the first rotating shaft 402, and the first gear 404 meshes with a fourth gear 508.

[0050] When the cylinder 405 is working, the cylinder 405 drives the sliding plate 406 to move along the slide rail 407, the sliding plate 406 drives the first bracket 401 to move, and the first bracket 401 drives the extrusion wheel 403 to move toward or away from the driving wheel 303 through the first rotating shaft 402.

[0051] A first motor 409 is installed at the end of the sliding plate 406 that is rotatably connected to the first support 401. A lead screw 410 is fixed to the output shaft of the first motor 409. One end of the lead screw 410 is rotatably connected to a fixed block 411, which is fixed to the sliding plate 406. A lead screw nut 412 is fitted onto the lead screw 410. An adjusting block 413 is fixed to the bottom of the lead screw nut 412. The bottom of the adjusting block 413 contacts the first support 401 but is not fixed. An elongated hole 414 is provided at the bottom of the adjusting block 413. A connecting rod 415 is fixed to the first support 401, and the connecting rod 415 is located within the elongated hole 414. The elongated hole 414 is positioned along the length of the sliding plate 406.

[0052] When the first motor 409 is working, the output shaft of the first motor 409 drives the lead screw 410 to rotate, the lead screw 410 drives the lead screw nut 412 to move, the lead screw nut 412 drives the adjusting block 413 to move, the adjusting block 413 drives the connecting rod 415 to move, thereby causing the first bracket 401 to rotate, driving the extrusion wheel 403 to rotate, thereby adjusting the gap between the two ends of the extrusion wheel 403 and the driving wheel 303, so that the gap between the two ends of the extrusion wheel 403 and the driving wheel 303 is the same, ensuring that the glue thickness on the driving wheel 303 is uniform.

[0053] In one embodiment, there are two cylinders 405, which are arranged symmetrically.

[0054] In one embodiment, two slide rails 407 are provided, and the two slide rails 407 are arranged symmetrically.

[0055] In one embodiment, a connecting shaft is fixed to one end of the bottom of the first bracket 401, and the connecting shaft is rotatably connected to the sliding plate 406.

[0056] The measuring components include a first detection rod 601, a first distance sensor 602, a second detection rod 603, and a second distance sensor 604.

[0057] The first detection rod 601 and the second detection rod 603 are respectively fixed at both ends of the first bracket 401, and the first distance sensor 602 and the second distance sensor 604 are respectively fixed at the end of the plastic box 2 near the drive wheel 303.

[0058] The axis of the drive wheel 303 and the axis of the extrusion wheel 403 are in the same plane. In this plane, the side of the extrusion wheel 403 closest to the drive wheel 303, the side of the first detection rod 601 and the side of the second detection rod 603 closest to the drive wheel 303 are in the same straight line. The distances from the first distance sensor 602 and the second distance sensor 604 to the drive wheel 303 are the same and known. The distance from the first distance sensor 602 to the first detection rod 601 is measured, and the distance from the second distance sensor 604 to the second detection rod 603 is measured. The distances from the first distance sensor 602 and the second distance sensor 604 to the drive wheel 303 are then subtracted to obtain the gaps between the two ends of the extrusion wheel 403 and the drive wheel 303. When the gaps between the two ends of the extrusion wheel 403 and the drive wheel 303 are different, the first motor 409 works to adjust the gaps between the two ends of the extrusion wheel 403 and the drive wheel 303 so that the gaps between the two ends of the extrusion wheel 403 and the drive wheel 303 are the same.

[0059] In one embodiment, the first ranging sensor 602 and the second ranging sensor 604 can be laser displacement sensors.

[0060] When the second motor 501 is working, the second motor 501 drives the first pulley 502 to rotate. The first pulley 502 drives the second pulley 503 to rotate via the belt 504. The second pulley 503 drives the third gear 507 to rotate via the third shaft 505. The third gear 507 drives the fourth gear 508 and the second gear 304 to rotate. The fourth gear 508 drives the first gear 404 to rotate, which in turn drives the drive wheel 303 and the extrusion wheel 403 to rotate. The extrusion wheel 403 squeezes out the excess glue on the drive wheel 303.

[0061] In one embodiment, such as Figure 6 As shown, an electromagnet is embedded in the bottom of the adjusting block 413. The first bracket 401 is made of iron. When the first motor 409 is not needed, the electromagnet operates, attracting and fixing the first bracket 401, thereby fixing the first bracket 401 and the adjusting block 413, thus preventing the first bracket 401 from rotating. The electromagnet provides better fixation for the first bracket 401. When the first motor 409 needs to operate, the electromagnet stops working and no longer attracts and fixes the first bracket 401.

[0062] When changing production workpieces and adjusting the adhesive thickness, cylinder 405 operates, driving sliding plate 406 to move along slide rail 407. Sliding plate 406 then moves first support 401, which in turn moves extrusion roller 403 via first rotating shaft 402. This adjusts the gap between extrusion roller 403 and drive roller 303, thereby adjusting the adhesive thickness on drive roller 303 and thus the overall adhesive application thickness. Since the distance the cylinder 405 moves the extrusion roller 403 is approximately 1mm, this small range also limits the movement of first gear 404, ensuring it does not affect the meshing of first gear 404 and fourth gear 508.

[0063] When the gaps between the two ends of the extrusion roller 403 and the drive roller 303, as measured by the first ranging sensor 602 and the second ranging sensor 604, are different, the first motor 409 operates. The output shaft of the first motor 409 drives the lead screw 410 to rotate, the lead screw 410 drives the lead screw nut 412 to move, the lead screw nut 412 drives the adjusting block 413 to move, and the adjusting block 413 drives the connecting rod 415 to move. This causes the first bracket 401 to rotate, which in turn drives the extrusion roller 403 to rotate, thereby adjusting the gaps between the two ends of the extrusion roller 403 and the drive roller 303 to be the same, ensuring uniform glue thickness on the drive roller 303. The first motor 409 adjusts the rotation range of the extrusion roller 403 to 1mm or even smaller, without affecting the meshing of the first gear 404 and the fourth gear 508.

[0064] It can quickly adjust the gap between the extrusion roller 403 and the drive roller 303, and is suitable for different glue thicknesses or different glues.

[0065] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A roller bonding assembly with adjustable gap, characterized in that, include: Base (1), and a plastic box (2) is fixed on the base (1); The drive wheel assembly (3) includes a second bracket (301), which is fixed on the base (1). The two ends of the second bracket (301) are provided with the same second rotating shaft (302). The second rotating shaft (302) is located above the plastic box (2), and the drive wheel (303) is fixed on the second rotating shaft (302). The extrusion wheel assembly (4) includes a first bracket (401), with the same first rotating shaft (402) at both ends of the first bracket (401). The first rotating shaft (402) is located above the glue box (2), and an extrusion wheel (403) is fixed on the first rotating shaft (402). A drive assembly for driving the drive wheel (303) and the extrusion wheel (403). A measuring component is used to measure the gaps between the two ends of the extrusion wheel (403) and the drive wheel (303); The extrusion wheel assembly (4) also includes a sliding plate (406) and a cylinder (405). The cylinder (405) is fixed on the base (1). The output end of the cylinder (405) is fixedly connected to the sliding plate (406). A slider (408) is fixed at the bottom of the sliding plate (406). The slider (408) is slidably mounted on the slide rail (407). The slide rail (407) is fixed on the base (1). One end of the sliding plate (406) is rotatably connected to the bottom of the first bracket (401), and the other end of the sliding plate (406) is provided with a first motor (409). The output shaft of the first motor (409) is fixed with a lead screw (410), and a lead screw nut (412) is matched on the lead screw (410). An adjusting block (413) is fixed at the bottom of the lead screw nut (412). The bottom of the adjusting block (413) is in contact with the first bracket (401) but not fixed. An elongated hole (414) is provided at the bottom of the adjusting block (413). A connecting rod (415) is fixed on the first bracket (401), and the connecting rod (415) is located in the elongated hole (414).

2. The roller bonding assembly with adjustable gap as described in claim 1, characterized in that: The measuring assembly includes a first detection rod (601), a first distance sensor (602), a second detection rod (603), and a second distance sensor (604). The first detection rod (601) and the second detection rod (603) are respectively fixed at both ends of the first bracket (401), and the first distance sensor (602) and the second distance sensor (604) are respectively fixed at one end of the plastic box (2) near the drive wheel (303).

3. The roller bonding assembly with adjustable gap as described in claim 2, characterized in that: The axis of the drive wheel (303) and the axis of the extrusion wheel (403) are in the same plane. In this plane, the side of the extrusion wheel (403) near the drive wheel (303) and the side of the first detection rod (601) and the second detection rod (603) near the drive wheel (303) are in the same straight line. The distance from the first distance sensor (602) and the second distance sensor (604) to the drive wheel (303) is the same.

4. The roller assembly with adjustable gap as described in claim 1, characterized in that: The drive assembly includes a second motor (501), a first pulley (502) is fixed on the output shaft of the second motor (501), the second motor (501) is fixed on the base (1), a third rotating shaft (505) and a fourth rotating shaft (506) are spaced apart on the base (1), the third rotating shaft (505) and the fourth rotating shaft (506) are rotatably connected to the base (1), a second pulley (503) is fixed on the third rotating shaft (505), the first pulley (502) and the second pulley (503) are connected by a belt (504), a third gear (507) is fixed on the third rotating shaft (505), and a fourth gear (508) is fixed on the fourth rotating shaft (506); the third gear (507) meshes with the fourth gear (508).

5. The roller assembly with adjustable gap as described in claim 4, characterized in that: A second gear (304) is fixed at one end of the second shaft (302), and the second gear (304) meshes with the third gear (507).

6. The roller bonding assembly with adjustable gap as described in claim 5, characterized in that: A first gear (404) is fixed on the first rotating shaft (402), and the first gear (404) meshes with the fourth gear (508).

7. The roller assembly with adjustable gap as described in claim 1, characterized in that: The bottom of the adjustment block (413) is inlaid with an electromagnet, and the first bracket (401) is made of iron.

8. The roller bonding assembly with adjustable gap as described in claim 1, characterized in that: The first bracket (401) has a connecting shaft fixed at one end of its bottom, and the connecting shaft is rotatably connected to the sliding plate (406).

9. The roller assembly with adjustable gap as described in claim 1, characterized in that: There are two cylinders (405), which are arranged symmetrically.

10. The roller assembly with adjustable gap as described in claim 9, characterized in that: There are two slide rails (407), and the two slide rails (407) are arranged symmetrically.

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