Adjustable scraper mechanism

Abstract

The utility model discloses an adjustable scraper mechanism which comprises a mounting frame, a first rod, a driving part, two connecting parts, a first adjusting part, a mounting part, a scraper, a second adjusting part and a third adjusting part. The position of the scraper blade is adjusted around the axis of the first rod through the first adjusting part; the position of the scraper blade is adjusted around the axis of the second rod through the second adjusting part; the length is adjusted through stretching and retracting of the two connecting parts, so that the position of the scraper is adjusted corresponding to the linear direction. Through the three adjusting modes, the scraping plate can correspond to the set glue scraping position on the glue roller. And the scraper blade is close to or far away from the rubber roller through the third adjusting part, so that the gap between the scraper blade and the rubber roller is adjusted. The scraping plate slides back and forth through the driving part, glue, making contact with the scraping plate, on the glue roller can deviate along with back-and-forth sliding of the scraping plate, and the glue can be distributed more evenly in the axial direction of the glue roller. The gap between the scraper blade and the rubber roller can be adjusted, and meanwhile the position, corresponding to the rubber roller, of the scraper blade can also be adjusted.

Description

Technical Field

[0001] This utility model relates to glue application using rubber rollers, and in particular to an adjustable scraper mechanism. Background Technology

[0002] In the lamination process of composite paper, adhesive is generally applied to one layer of paper using a glue roller. Adhesive is added to the glue box while simultaneously being dispensed, dynamically maintaining the adhesive within a stable range. During rotation, the lower part of the glue roller contacts the adhesive, adhering to it and moving with it; the upper part contacts the paper, applying the adhesive. To ensure even adhesive distribution, a scraper is used, with a gap between it and the roller. After the roller is coated with adhesive, it passes through the scraper before being applied to the paper. While the adhesive adheres to the roller, it is subject to its own weight and the centrifugal force of the rotating roller, resulting in relative movement between the adhesive and the roller. Therefore, the position of the scraper and the gap between them must be adjusted based on factors such as the type of adhesive, the roller's rotation speed, and the designed adhesive coating thickness on the paper. Utility Model Content

[0003] This application provides an adjustable scraper mechanism that can solve the problem that existing scraper mechanisms cannot adjust the position of the scraper acting on the rubber roller.

[0004] This application provides an adjustable scraper mechanism, comprising:

[0005] Mounting rack;

[0006] The first horizontal rod slides along its own axis on the mounting bracket;

[0007] The drive unit causes the first rod to slide back and forth;

[0008] Both connecting parts are telescopically adjustable in length and each includes: a first connecting part and a second connecting part; the first connecting part is fixed to the first rod at an adjustable angle around the axis of the first rod; a second rod connects the two second connecting parts;

[0009] The first adjustment part is used to adjust the angle of the first connecting part;

[0010] The mounting part is fixed to the two second connecting parts with an adjustable angle around the axis of the second rod;

[0011] The scraper is fixed to the mounting part in a direction that can be adjusted in a direction perpendicular to the axis of the second rod.

[0012] The second adjustment part is used to adjust the angle of the mounting part;

[0013] The third adjustment section is used to adjust the distance between the axes of the scraper and the second rod.

[0014] In some embodiments, the first adjusting part includes: a first worm rotating in one of the first connecting parts and a first worm wheel fixed to the first rod and engaged by the first worm.

[0015] In some embodiments, the connection between the second rod and the two second connecting portions is a rotatable connection; the second adjusting part includes: a second worm rotating in one of the second connecting portions and a second worm wheel fixed to the second rod and engaged by the second worm.

[0016] In some embodiments, the second rod is fixed to two second connecting portions; the second adjusting portion includes: a first connecting arm with one end fixed to the second rod and a first cylinder hinged between the other end of the first connecting arm and the mounting portion.

[0017] In some embodiments, the third adjustment part is a lead screw module, which is disposed in the mounting part.

[0018] In some embodiments, the first connecting portion also has a first hand-tightening bolt that can press the first worm gear tight and restrict rotation.

[0019] In summary, this application discloses an adjustable scraper mechanism, comprising a mounting frame, a first rod, a drive unit, two connecting parts, a first adjustment unit, a mounting unit, a scraper, a second adjustment unit, and a third adjustment unit. The first adjustment unit adjusts the scraper's position around the axis of the first rod; the second adjustment unit adjusts the scraper's position around the axis of the second rod; and the two connecting parts extend and retract to adjust the scraper's length, allowing it to adjust its position in a linear direction. These three adjustment methods ensure the scraper aligns with a pre-set scraping position on the rubber roller. The third adjustment unit moves the scraper closer to or further away from the rubber roller, adjusting the gap between the scraper and the roller. The drive unit causes the scraper to slide back and forth, causing the adhesive on the rubber roller in contact with the scraper to shift with the back-and-forth sliding, resulting in a more uniform distribution of adhesive along the axial direction of the rubber roller. The advantages include: adjustable gap between the scraper and the rubber roller, adjustable position of the scraper on the rubber roller, simple structure, and convenient operation. Attached Figure Description

[0020] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0021] Figure 1 This is a front view of this application;

[0022] Figure 2 for Figure 1 Sectional view along the middle AA;

[0023] Figure 3 To omit the handwheel of the first and second worm gears Figure 1 A schematic diagram of the right side of the middle section;

[0024] Figure 4 A schematic diagram showing another type of second adjustment section setup;

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle;

[0026] Figure 6 for Figure 1 A cross-sectional view along the middle BB.

[0027] In the picture,

[0028] 1. Mounting bracket;

[0029] 2. First shot;

[0030] 3. Drive unit; 3a. Second connecting arm;

[0031] 4. Connecting part; 4a. First connecting part; 4b. Second connecting part; 4b1. Second rod;

[0032] 5. First adjusting part; 5a. First worm gear; 5b. First worm; 5c. First hand-tightening bolt;

[0033] 6. Mounting section; 6a. Extension section;

[0034] 7. Scraper; 7a. Sliding block;

[0035] 8. Second adjustment part; 8a. Second hand-tightening bolt; 8b. First connecting arm; 8c. First cylinder;

[0036] 9. Third Adjustment Department. Detailed Implementation

[0037] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0038] Please see Figure 1 An adjustable scraper mechanism includes a mounting frame 1, a first rod 2, a drive unit 3, two connecting parts 4, a first adjustment unit 5, a mounting part 6, a scraper 7, a second adjustment unit 8, and a third adjustment unit 9.

[0039] The first rod 2 is horizontal and slides along its own axis on the mounting bracket 1. More specifically, the first rod 2 can be an optical axis; the mounting bracket 1 can be concave, with linear bearings on both sides of the concave opening for connecting the first rod 2.

[0040] The drive unit 3 is used to drive the first rod 2 to slide back and forth. More specifically, the drive unit 3 can be a second cylinder, with the cylinder body fixedly connected to the mounting bracket 1, and a vertical second connecting arm 3a fixedly connected to the piston rod. The second connecting arm 3a is also fixedly connected to the first rod 2.

[0041] Both connecting parts 4 are telescopically adjustable in length and each includes a first connecting part 4a and a second connecting part 4b. More specifically, the second connecting part 4b is fixedly provided with two optical axes; the first connecting part 4a is provided with insertion holes for inserting the two optical axes and is also threadedly connected with a first bolt that can fix the optical axes to the insertion holes.

[0042] The first connecting part 4a is fixedly connected to the first rod 2 and can also adjust its angle around the axis of the first rod 2. A second rod 4b1 connects the two second connecting parts 4b. More specifically, the first connecting part 4a has a hole for the first rod 2 to be fitted into, and is also threaded with a second bolt that can fix itself to the first rod 2. That is, by loosening the two second bolts, the two connecting parts 4b and the second rod 4b1 can be manually rotated together around the axis of the first rod 2. After rotating to the appropriate position, the second bolts can be tightened again.

[0043] The first adjustment part 5 is used to adjust the angle of the first connecting part 4a.

[0044] Please see Figure 1 and Figure 2 In some embodiments, the first adjusting part 5 includes a first worm 5b and a first worm wheel 5a. The first worm 5b is rotatably connected to one of the first connecting parts 4a, and the first worm wheel 5a is fixedly connected to the first rod 2 and meshes with the first worm 5b.

[0045] Rotating the first worm 5b will cause the two connecting parts 4 and the second rod 4b1 to rotate together around the axis of the first rod 2. Of course, the aforementioned second bolt can be retained.

[0046] Please see Figure 2 and Figure 3 In some embodiments, based on the above-described example where "the first adjusting part 5 includes a first worm 5b and a first worm wheel 5a," the first connecting part 4a also has a first hand-tightening bolt 5c, which is used to press the first worm 5b and restrict its rotation. More specifically, the first connecting part 4a may be provided with a through hole through which the first worm 5b passes and a gap connecting the through hole to the outside. The inner diameter of the through hole and the outer diameter of the part through which the first worm 5b passes are fitted together. The first hand-tightening bolt 5c passes through a portion on one side of the gap and is threaded to a portion on the other side of the gap.

[0047] Without rotating the first worm gear 5b, tighten the first hand-tightening bolt 5c to press the first worm gear 5b into place and restrict its rotation. This makes the fixed connection between the first connecting part 4a and the first rod 2 more stable.

[0048] Please see Figure 1 The mounting part 6 is fixedly connected to the two second connecting parts 4b, and can also adjust the angle around the axis of the second rod 4b1.

[0049] The second adjustment section 8 is used to adjust the angle of the mounting section 6.

[0050] Please see Figure 2 and Figure 3 In some embodiments, the connection between the second rod 4b1 and the two second connecting portions 4b is a rotatable connection. That is, the mounting portion 6 is directly fixed to the second rod 4b1, and the angle of the mounting portion 6 is adjusted by rotating the second rod 4b1 relative to the second connecting portions 4b. Referring to the above-described configuration where "the first adjusting portion 5 includes a first worm 5b and a first worm wheel 5a", the second adjusting portion 8 includes a second worm rotating in one of the second connecting portions 4b and a second worm wheel fixed to the second rod 4b1 and engaged by the second worm.

[0051] Correspondingly, a second hand-tightening bolt 8a for pressing the second worm and restricting its rotation can also be provided on the second connecting part 4b. A third bolt that can fix itself to the body of the second rod 4b1 can also be threaded onto the first connecting part 4a. That is, when adjusting the angle of the mounting part 6, the third bolt is loosened first, and after the adjustment is completed, the third bolt is tightened again.

[0052] Please see Figure 4 and Figure 5 In some embodiments, the second rod 4b1 is fixed to the two second connecting portions 4. That is, the mounting portion 6 needs to be able to rotate relative to the second rod 4b1, thereby adjusting the angle of the mounting portion 6. The second adjusting portion 8 includes a first connecting arm 8b and a first cylinder 8c. One end of the first connecting arm 8b is fixedly connected to the second rod 4b1, and the cylinder body of the first cylinder 8c can be hinged to the mounting portion 6 (the mounting portion 6 can have an outwardly extending extension portion 6a), and the piston rod is hinged to the other end of the first connecting arm 8b. The angle of the mounting portion 6 is adjusted by extending or retracting the piston rod of the first cylinder 8c.

[0053] Please see Figure 1 The scraper 7 is fixedly connected to the mounting part 6 and its position can be adjusted along the axis perpendicular to the second rod 4b1. More specifically, because the scraper 7 is relatively long, there can be multiple mounting parts 6.

[0054] The third adjustment section 9 is used to adjust the distance between the axes of the scraper 7 and the second rod 4b1.

[0055] Please see Figure 1 and Figure 6 In some embodiments, the third adjustment part 9 is a lead screw module, disposed in the mounting part 6. If there are multiple mounting parts 6, the lead screw module is disposed in one of them. More specifically, the top surface of each mounting part 6 may have a trapezoidal groove, and the bottom surface of the scraper 7 is fixedly provided with a slider 7a corresponding to the groove in each mounting part 6; the lead screw of the lead screw module is rotatably connected to one of the mounting parts 6, and the lead screw nut is fixedly connected to the corresponding slider 7a. Rotating the lead screw causes the scraper 7 to slide, and the self-locking property of the lead screw fixes the scraper 7 relative to the mounting part 6.

[0056] The first adjustment part 5 adjusts the position of the scraper 7 around the axis of the first rod 2; the second adjustment part 8 adjusts the position of the scraper 7 around the axis of the second rod 4b1; and the two connecting parts 4 extend and retract to adjust the length, thereby adjusting the position of the scraper 7 in a straight line. These three adjustment methods ensure that the scraper 7 corresponds to the scraping position set on the glue roller. The third adjustment part 9 moves the scraper 7 closer to or further away from the glue roller, adjusting the gap between the scraper 7 and the glue roller. The drive part 3 causes the scraper 7 to slide back and forth, causing the glue on the glue roller in contact with the scraper 7 to shift as the scraper 7 slides back and forth, resulting in a more uniform distribution of glue along the axial direction of the glue roller.

Claims

1. An adjustable doctor mechanism, characterized by, The utility model relates to a kind of adjustable scraper, including: Mounting frame (1); Horizontal first rod (2), sliding in the mounting frame (1) along self axis; Driving part (3), drive the first rod (2) to slide back and forth; Two connecting parts (4), both can be telescopic length adjustment, both include: first connecting part (4a) and second connecting part (4b);First connecting part (4a) can be fixed to the first rod (2) at angle around the axis of the first rod (2);Second rod (4b1) is connected between two second connecting parts (4b); First adjustment part (5), for adjusting the angle of first connecting part (4a); Mounting part (6), can be fixed to two second connecting parts (4b) at angle around the axis of second rod (4b1); Scraper (7), can be fixed to mounting part (6) at position adjustment between the axis of second rod (4b1); Second adjustment part (8), for adjusting the angle of mounting part (6); Third adjustment part (9), for adjusting the distance between the axis of scraper (7) and second rod (4b1).

2. An adjustable doctor mechanism according to claim 1, wherein The first adjustment part (5) includes: first worm (5b) rotating in one of the first connecting parts (4a) and first worm wheel (5a) fixed to the first rod (2) and for first worm (5b) meshing.

3. An adjustable doctor mechanism according to claim 1, wherein The connection between second rod (4b1) and two second connecting parts (4b) is rotary connection;Second adjustment part (8) includes: second worm rotating in one of the second connecting parts (4b) and second worm wheel fixed to second rod (4b1) and for second worm meshing.

4. An adjustable doctor mechanism according to claim 1, wherein Second rod (4b1) is fixed to two second connecting parts (4b);Second adjustment part (8) includes: first connecting arm (8b) with one end fixed to second rod (4b1) and first pneumatic cylinder (8c) articulated between the other end of first connecting arm (8b) and mounting part (6).

5. An adjustable doctor mechanism according to claim 1 wherein, The third adjustment part (9) is screw module, set in mounting part (6).

6. An adjustable doctor mechanism according to claim 2, wherein There is also first hand screw bolt (5c) on the first connecting part (4a) that can press first worm (5b) tightly and limit rotation.

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