Uniform coating mechanism capable of adjusting glue thickness

Abstract

The utility model provides a uniform coating mechanism capable of adjusting glue thickness, which comprises a rack, a fixed glue uniformizing roller, a movable glue uniformizing roller and a tension roller, the fixed glue uniformizing roller and the movable glue uniformizing roller are axially arranged in parallel, and the movable glue uniformizing roller translates back and forth along the axial direction of the movable glue uniformizing roller; adjusting mechanisms are arranged at the two ends of the tensioning roller respectively, the two ends of the tensioning roller are adjustably connected with the rack through the adjusting mechanisms, a base material is tensioned by the tensioning roller after passing through the fixed glue uniformizing roller and the movable glue uniformizing roller, and a wrap angle formed by the base material and the movable glue uniformizing roller is adjusted. The glue uniformizing device is reasonable in structural design, the fixed glue uniformizing roller is matched with the movable glue uniformizing roller, coated glue can be uniformized, meanwhile, the tensioning roller with the adjustable position is designed above the movable glue uniformizing roller, and the wrap angle between a base material and the movable glue uniformizing roller can be adjusted through the tensioning roller, so that the thickness of the glue is adjusted and controlled, and the glue uniformizing effect is improved. The control process is reliable and adjustment is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a coating uniformity mechanism for adjusting the thickness of glue. Background Art

[0002] Coating machines are machines used for surface coating of films, papers, etc., which are used to unwind the rolled substrate and then coat it with a layer of glue, paint or ink with specific functions, and then dry it and cut it into sheets or rewind it. After coating, existing coating machines usually use glue rollers to evenly distribute the glue on the surface of the substrate.

[0003] At present, in the uniform coating, the existing coating machine can usually adopt an extrusion glue-smoothing device for coating machines as disclosed in CN201710841901.7, which includes a power transmission unit, a pressure regulating unit and an extrusion glue-smoothing roller, the extrusion glue-smoothing roller is arranged on a swing arm, and is pressed against the surface of the substrate coated with the material under the action of the pressure regulating unit, and the extrusion glue-smoothing roller rotates in the opposite direction of the substrate movement direction under the drive of the power transmission unit. The present invention adopts a pressure-adjustable glue-smoothing roller to extrude and smooth the glue in the opposite direction after coating.

[0004] The coating uniformity mechanism of the coating machine configured in this way realizes the operation of smoothing and evenly distributing the glue by reverse extrusion, but the thickness of the glue cannot be directly controlled by the uniformity mechanism. Usually, a scraping mechanism needs to be designed separately. Only by cooperating with the scraping mechanism and the uniformity mechanism can the final uniform coating operation be completed, which has the problems of complex mechanical structure and difficulty in adjusting the thickness of the glue layer. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, the utility model provides a coating uniformity mechanism for adjusting the thickness of glue, which integrates the glue thickness adjustment function, and the adjustment process is convenient, fast and reliable.

[0006] The utility model adopts the following technical scheme to solve the technical problem: a coating uniformity mechanism for adjusting the thickness of glue, which is used for adjusting the coating uniformity of glue on the substrate after the glue is coated, and comprises a frame, a fixed coating roller is rotatably connected to the frame, a movable coating roller is rotatably provided above the fixed coating roller on the frame, the fixed coating roller and the movable coating roller are axially parallel, and the movable coating roller reciprocates along its axial direction; and comprises a tensioning roller, both ends of the tensioning roller are respectively provided with adjustment mechanisms, the two ends of the tensioning roller are adjustably connected to the frame through the adjustment mechanism, and the substrate passes through the fixed coating roller and the movable coating roller, and the tensioning roller tightens and adjusts the wrap angle between the substrate and the movable coating roller.

[0007] In the above scheme, the glue and the substrate can be evenly spread along the axial direction of the glue spreading roller by moving the glue spreading roller. The tensioning roller cooperates with the moving glue spreading roller so that the substrate and the moving glue spreading roller form a wrap angle. The wrap angle can be adjusted by adjusting the position of the tensioning roller by adjusting the structure. The smaller the wrap angle, the thinner the glue coated on the surface of the substrate, thereby completing the uniformity and thickness adjustment of the glue.

[0008] Furthermore, the axial movement of the mobile glue-distributing roller is driven by the cooperation of the reducer and the eccentric shaft. Specifically, the uniform coating mechanism also includes a reducer, which is fixed on the frame, and an eccentric shaft is fixed at the output end of the reducer. The eccentric shaft is eccentrically arranged relative to the central axis of the reducer output, and a movable sleeve is fixed on the outer peripheral surface of the top of the eccentric shaft; an I-shaped sleeve is fixed on the outer peripheral surface of one end of the mobile glue-distributing roller, and the I-shaped sleeve has an annular groove in the circumference, and the mobile sleeve is limited in the annular groove. Under the action of the reducer, the mobile sleeve makes an eccentric movement relative to the axial direction of the reducer output end, thereby driving the mobile glue-distributing roller to reciprocate along its axial direction.

[0009] Preferably, the end of the movable glue spreading roller away from the I-shaped sleeve is connected to a glue spreading reducer through gear transmission, and the glue spreading reducer drives the movable glue spreading roller to rotate along its axis.

[0010] Furthermore, the adjustment mechanism includes a cylinder, a linear slide rail and a slider; the linear slide rail is fixed on the frame, one end of the tensioning roller is rotatably matched with the slider, the slider is slidably set on the linear slide rail, the cylinder is set on the frame, and the output end of the cylinder drives the slider to slide along the linear slide rail.

[0011] In order to effectively lock the distance between the tensioning roller and the movable glue-distributing roller after being adjusted into place, a positioning pin is further provided on the slider, and the positioning pin positions and locks the slider and the linear slide rail.

[0012] Furthermore, a limit block is provided above the frame corresponding to the linear slide rail, and the limit block sets the slider on the linear slide rail. The limit block can effectively limit the slider to prevent the slider from falling off the linear slide rail due to excessive adjustment of the cylinder.

[0013] The beneficial effect of the utility model is that the utility model provides a mechanism for evenly coating glue for adjusting the thickness, which has a reasonable structural design, and can evenly coat the glue by utilizing the cooperation of a fixed glue-coating roller and a movable glue-coating roller. At the same time, a tensioning roller with an adjustable position is designed above the movable glue-coating roller, and the wrap angle between the substrate and the movable glue-coating roller can be adjusted by the tensioning roller, thereby realizing adjustment and control of the glue thickness, and the control process is reliable and the adjustment is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the optimal embodiment of the utility model.

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0017] Figure 3 It is an enlarged side view (partially in cross-section) of the optimal embodiment of the utility model.

[0018] In the figure, 1, frame 2, cylinder 3, I-shaped sleeve 4, annular groove 5, movable sleeve 6, eccentric shaft 7, reducer 8, linear guide rail 9, tensioning roller 10, movable glue-distributing roller 11, fixed glue-distributing roller 12, limit block 13, slider 14, glue-distributing reducer. DETAILED DESCRIPTION

[0019] The utility model is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model, and the directions and references (for example, up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter for which protection is sought is limited only by the attached claims and their equivalents.

[0020] like Figures 1 to 3 The illustrated mechanism for adjusting the glue thickness for uniform coating is the optimal embodiment of the utility model.

[0021] like Figure 1 As shown, the mechanism is used to adjust the glue spreading of the substrate after the glue is applied. The mechanism includes a frame 1, a fixed glue spreading roller 11, a movable glue spreading roller 10, a tensioning roller 9 and an adjustment mechanism.

[0022] There are two fixed glue leveling rollers 11, which are arranged in parallel on the same horizontal plane. The two fixed glue leveling rollers 11 are rotatably arranged on the frame 1. A mobile glue leveling roller 10 is also rotatably arranged above the fixed glue leveling rollers 11 on the frame 1. The fixed glue leveling rollers 11 and the mobile glue leveling rollers 10 are arranged axially parallel to each other, and the mobile glue leveling rollers 10 reciprocate along their axial directions.

[0023] Specifically, the reciprocating translation of the mobile glue-distributing roller 10 relative to the fixed glue-distributing roller 11 is achieved by the structural cooperation of the reducer 7 and the eccentric shaft 6. Figure 1As shown, the reducer 7 is fixed on the frame 1, and an eccentric shaft 6 is fixed at the output end of the reducer 7. The eccentric shaft 6 is eccentrically arranged relative to the central axis of the output of the reducer 7. A movable sleeve 5 is fixed to the outer peripheral surface of the top of the eccentric shaft 6. An I-shaped sleeve 3 is fixed to the outer peripheral surface of one end of the mobile glue-distributing roller 10. The I-shaped sleeve 3 has an annular groove 4 in the circumference, and the movable sleeve 5 is limitedly arranged in the annular groove 4. Under the action of the reducer 7, the movable sleeve 5 makes an eccentric motion relative to the axial direction of the output end of the reducer 7, thereby driving the mobile glue-distributing roller 10 to reciprocate along its axial direction.

[0024] The rotation of the mobile glue-spreading roller 10 is driven by the glue-spreading reducer 14. Figure 2 As shown, specifically, the end of the mobile glue-spreading roller 10 away from the I-shaped sleeve 3 is connected to a glue-spreading reducer 14 through gear transmission, and the glue-spreading reducer 14 drives the mobile glue-spreading roller 10 to rotate along its axis. The end of the fixed glue-spreading roller 11 is also connected to a glue-spreading reducer 14 through transmission, and the fixed glue-spreading roller 11 is driven to rotate through the glue-spreading reducer 14. Through the action of the glue-spreading reducer 14, the fixed glue-spreading roller 11 and the mobile glue-spreading roller 10 can be driven to rotate relative to their own axes.

[0025] like Figure 3 As shown, adjustment mechanisms are provided at both ends of the tensioning roller 9. Both ends of the tensioning roller 9 are adjustably connected to the frame 1 through the adjustment mechanism. The adjustment mechanism includes a cylinder 2, a linear slide 8 and a slider 13; the linear slide 8 is fixed on the frame 1, and one end of the tensioning roller 9 is rotatably matched with the slider 13, and the slider 13 is slidably set on the linear slide 8. The cylinder 2 is set on the frame 1, and the output end of the cylinder 2 drives the slider 13 to slide along the linear slide 8. A positioning pin is also provided on the slider 13. After being adjusted into place, the positioning pin positions and locks the slider 13 and the linear slide 8, effectively locking the distance between the tensioning roller 9 and the movable glue roller 10. At the same time, a limit block 12 is also provided above the frame 1 corresponding to the linear slide 8, and the limit block 12 limits the slider 13 on the linear slide 8. The limit block 12 can effectively limit the slider 13 to prevent the slider 13 from escaping from the linear slide 8 due to excessive adjustment of the cylinder 2.

[0026] In this way, the substrate passes through the fixed glue-distributing roller 11 and the movable glue-distributing roller 10, and then the tension roller 9 tightens and adjusts the wrap angle between the substrate and the movable glue-distributing roller 10. The smaller the wrap angle, the thinner the glue thickness coated on the substrate surface; the larger the wrap angle, the thicker the glue thickness coated on the substrate surface, thereby completing the uniformity and thickness adjustment of the glue, and realizing the adjustment and control of the glue thickness, and the adjustment and control process is reliable and convenient and quick to adjust.

[0027] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A coating uniformity mechanism for adjusting the thickness of glue, used for uniformly adjusting the glue on the substrate after the glue is coated, characterized in that: The invention comprises a frame (1), wherein a fixed glue-distributing roller (11) is rotatably connected to the frame (1), and a movable glue-distributing roller (10) is rotatably arranged above the fixed glue-distributing roller (11) on the frame (1), wherein the fixed glue-distributing roller (11) and the movable glue-distributing roller (10) are axially arranged parallel to each other, and the movable glue-distributing roller (10) reciprocates along its axial direction; It comprises a tensioning roller (9), wherein both ends of the tensioning roller (9) are respectively provided with adjustment mechanisms, and the two ends of the tensioning roller (9) are adjustably connected to the frame (1) through the adjustment mechanisms. After the substrate passes through a fixed glue-distributing roller (11) and a movable glue-distributing roller (10), the tensioning roller (9) tightens the substrate and adjusts the wrapping angle between the substrate and the movable glue-distributing roller (10).

2. A glue coating uniformity mechanism for adjusting the glue thickness as claimed in claim 1, characterized in that: The invention comprises a reducer (7), wherein the reducer (7) is fixed on a frame (1), an eccentric shaft (6) is fixed on the output end of the reducer (7), the eccentric shaft (6) is eccentrically arranged relative to the central axis of the output of the reducer (7), and a movable sleeve (5) is fixed on the outer peripheral surface of the top of the eccentric shaft (6); an I-shaped sleeve (3) is fixed on the outer peripheral surface of one end of the movable glue-distributing roller (10), the I-shaped sleeve (3) has an annular groove (4) in the circumferential direction, and the movable sleeve (5) is limitedly arranged in the annular groove (4); under the action of the reducer (7), the movable sleeve (5) performs eccentric movement relative to the axial direction of the output end of the reducer (7), thereby driving the movable glue-distributing roller (10) to reciprocate along its axial direction.

3. A mechanism for adjusting glue thickness for uniform coating as claimed in claim 2, characterized in that: The end of the mobile glue-spreading roller (10) away from the I-shaped sleeve (3) is connected to a glue-spreading reducer (14) through gear transmission, and the glue-spreading reducer (14) drives the mobile glue-spreading roller (10) to rotate along its axis.

4. The mechanism for uniformly coating glue for adjusting the thickness of glue as claimed in claim 1, characterized in that: The adjustment mechanism comprises a cylinder (2), a linear slide rail (8) and a slider (13); the linear slide rail (8) is fixed on the frame (1), one end of the tensioning roller (9) is rotatably matched with the slider (13), and the slider (13) is slidably arranged on the linear slide rail (8); the cylinder (2) is arranged on the frame (1), and the output end of the cylinder (2) drives the slider (13) to slide along the linear slide rail (8).

5. A mechanism for adjusting glue thickness for uniform coating as claimed in claim 4, characterized in that: The slider (13) is also provided with a positioning pin, and the positioning pin positions and locks the slider (13) and the linear slide rail (8).

6. A mechanism for adjusting glue thickness for uniform coating as claimed in claim 5, characterized in that: The frame (1) is also provided with a limit block (12) above the corresponding linear slide rail (8), and the limit block (12) limits the position of the slider (13) on the linear slide rail (8).

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