Glue outlet needle head cleaning device

Abstract

The utility model discloses a glue outlet needle head cleaning device, which belongs to the technical field of mechanical equipment, and comprises a base plate and a clamping component arranged on the base plate, a charging tray group and a first winding column are respectively arranged on two longitudinal sides of the clamping component, and the charging tray group comprises a first charging tray and a second charging tray which are arranged at an interval along the transverse direction; dust-free cloth sequentially passes through the first material disc, the first winding column and the second material disc, the dust-free cloth is clamped around the glue outlet needle head through the clamping assembly, then the glue outlet needle head is wrapped by the dust-free cloth, residual glue on the glue outlet needle head can be removed when the glue outlet needle head moves up and down in a reciprocating mode, and after cleaning movement is completed, the glue outlet needle head can be cleaned by the dust-free cloth. The dust-free cloth can move along with rotation of the material disc so that the dust-free cloth stained with the residual glue can be recycled. The glue outlet needle cleaning device is compact in overall structural design, can be directly arranged on glue coating equipment to clean glue outlet needles, can be matched with various glue outlet needles, and has good use value.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment, and in particular relates to a glue discharge needle cleaning device. Background Art

[0002] With the rapid development of new energy vehicles, more demands have been put forward for their production processes. In the sealing of new energy vehicle electric drive covers and some similar products, the installation of sealing and waterproof rings has always been the biggest pain point. Among them, the problems of non-disassembly and rework, high labor consumption in assembly, multiple material numbers, inadequate assembly, and low assembly efficiency are particularly prominent and obvious.

[0003] In the prior art, the CIPG process is usually used to solve the above problems. However, the glue used in the CIPG process is generally of high viscosity. After the glue coating machine has completed the glue coating track of a product, the valve is closed, and the glue outlet is often covered and smoothed by the wire drawing process to cover and smooth the excess glue between the glue outlet needle and the product. However, during the covering and smoothing process, glue will remain on the needle. When coating the next product, the residual glue is easily attached to the product and the glue path, causing product contamination and glue path value deviation, so the production cost increases due to rework.

[0004] Therefore, there is a need for a glue needle cleaning device to clean the residual glue at the glue outlet of the glue coating machine, and the device is also required to be compatible with glue needles of different specifications. Utility Model Content

[0005] In view of one or more of the above defects or improvement needs in the prior art, the utility model provides a glue needle cleaning device, which can clean the residual glue on the glue needle and is suitable for glue needles of various specifications.

[0006] To achieve the above-mentioned purpose, the utility model provides a glue needle cleaning device, which includes a base plate and a clamping assembly arranged on the base plate, wherein the clamping assembly includes two clamping units arranged at intervals in the lateral direction, and the relative positions of the two clamping units in the lateral direction of the base plate are adjustable to clamp the glue needle;

[0007] A material tray group and a first winding column are respectively arranged on both longitudinal sides of the clamping assembly, the material tray group includes a first material tray and a second material tray arranged in a lateral interval, a dust-free cloth is arranged between the two material trays, both ends of the dust-free cloth are respectively connected to the two material trays, and the two material trays are respectively rotatably connected to the substrate,

[0008] The first winding column is arranged on the substrate, and the dust-free cloth is wound around the first winding column so that the dust-free cloth forms a "V" shape, and the dust-free cloth is respectively in contact with the two clamping units.

[0009] As a further improvement of the utility model, a second winding column and a third winding column are further arranged between the clamping assembly and the material tray group, the second winding column and the third winding column are arranged in a lateral interval, and the dust-free cloth between the first material tray and the first winding column bypasses the second winding column, and the dust-free cloth between the second material tray and the first winding column bypasses the third winding column.

[0010] As a further improvement of the utility model, a waist-shaped hole penetrating the upper and lower surfaces is provided on the base plate, and the waist-shaped hole extends in the transverse direction.

[0011] As a further improvement of the present invention, the clamping assembly also includes a driving unit for driving the two clamping units to move. The driving unit is arranged on the bottom surface of the substrate. The two moving parts in the driving unit respectively pass through the waist-shaped holes and are connected to the two clamping units to drive the two clamping units to move toward or away from each other.

[0012] As a further improvement of the utility model, a driving motor and a damper are also provided on the bottom surface of the substrate;

[0013] The movable part of the driving motor is fixedly connected to the second material tray to drive the second material tray to rotate.

[0014] The damper is connected to the first material tray, so that the first material tray can rotate driven by the dust-free cloth.

[0015] As a further improvement of the present invention, a detection unit is further provided on the substrate for detecting the running distance of the dust-free cloth.

[0016] As a further improvement of the present invention, the detection unit includes a fourth winding column, a sensing sheet and an angle sensor.

[0017] The fourth winding column is arranged between the third winding column and the second material tray, the dust-free cloth goes around the fourth winding column and abuts against it, and the fourth winding column can rotate with the movement of the dust-free cloth;

[0018] One end of the fourth winding column located on the bottom surface of the substrate is fixedly connected to the sensing sheet, one end of the angle sensor matches the sensing sheet, and the other end thereof is electrically connected to the driving motor.

[0019] As a further improvement of the present invention, a bearing is provided between the fourth winding column and the base plate, the outer ring of the bearing is fixedly connected to the base plate, and the inner ring of the bearing is fixedly connected to the fourth winding column.

[0020] As a further improvement of the utility model, the clamping unit includes a clamping block and a soft clamping head, a groove is provided on a side wall surface of the clamping block close to the other clamping block, and the soft clamping head is arranged in the groove.

[0021] As a further improvement of the utility model, a glue receiving cup is further provided at the bottom of the waist-shaped hole.

[0022] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In general, the above technical solution conceived by the utility model has the following beneficial effects compared with the prior art:

[0024] (1) The glue needle cleaning device of the utility model clamps the dust-free cloth around the glue needle through a clamping assembly, so that the dust-free cloth wraps the glue needle, and then the glue needle reciprocates up and down to remove the residual glue on the glue needle, and the material tray in the material tray group rotates to drive the dust-free cloth to move, so as to recover the dust-free cloth stained with residual glue;

[0025] (2) The glue needle cleaning device of the utility model has a clamping unit configured as a combination of a clamping block and a soft clamping head. A notch is provided on the adjacent end surfaces of the two clamping blocks for installing the soft clamping head. The soft clamping head can cover the glue needle, thereby achieving a close fit between the dust-free cloth and the glue needle. The notch has a certain depth and a longitudinal width to accommodate a variety of needles.

[0026] (3) The glue needle cleaning device of the utility model is provided with a driving unit on the bottom surface of a substrate, and a waist-shaped hole is provided on the substrate, so that the driving unit located on the bottom surface of the substrate can realize the motion control of the two clamping units through the waist-shaped hole, thereby realizing the compact design of the glue needle cleaning device as a whole and the miniaturized design of the device;

[0027] (4) The glue needle cleaning device of the utility model realizes the detection of the running distance of the dust-free cloth by setting a detection unit. In order to realize the miniaturized design of the whole device, the sensing sheet and the angle sensor can be set on the bottom surface of the substrate, and the fourth winding column can be set to achieve the follow-up movement with the dust-free cloth, thereby driving the sensing sheet to move, and then realizing the detection of the moving distance of the dust-free cloth;

[0028] (5) The glue needle cleaning device of the utility model is provided with a glue connecting unit below the base plate, which includes a glue connecting cup, a first bracket and a second bracket, so that the base plate can be supported on the glue connecting unit, and an installation is also provided at the bottom of the glue connecting unit so that it can be directly installed on the glue coating equipment or the motion mechanism to realize the cleaning of the glue needle in the glue coating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the glue discharge needle cleaning device in the embodiment of the utility model;

[0030] Figure 2 It is a partial structural top view of the glue discharge needle cleaning device in the embodiment of the utility model;

[0031] Figure 3 It is a bottom view of the partial structure of the glue discharge needle cleaning device in the embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of the overall structure of the drive unit in the embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the overall structure of the glue joining unit in the embodiment of the utility model;

[0034] In all the drawings, the same figure marks represent the same technical features, specifically: 1. substrate; 2. first material tray; 3. second material tray; 4. dust-free cloth; 5. clamping assembly; 501. clamping block; 502. soft clamping head; 503. drive unit; 504. connecting piece; 6. gluing unit; 601. gluing cup; 602. cup holder; 603. first bracket; 604. second bracket; 605. bottom plate; 7. mounting plate; 8. first winding column; 9. second winding column; 10. third winding column; 11. fourth winding column; 12. drive motor; 13. damper; 14. angle sensor; 15. induction sheet; 16. protective shell. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model 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 utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Example:

[0041] The glue needle cleaning device in the preferred embodiment of the utility model is as follows Figures 1 to 5 As shown in the figure, it includes a substrate and a clamping assembly arranged on the substrate, the clamping assembly includes two clamping units arranged at intervals along the lateral direction, the relative positions of the two clamping units in the lateral direction of the substrate are adjustable, the glue discharge needle can be clamped, and a movable dust-free cloth is arranged on the surface of the two clamping units to wipe clean the glue remaining on the glue discharge needle and recycle it.

[0042] Specifically, the two clamping units clamp the glue needle to clean it, that is, there is a cleaning position between the two clamping units, and when the glue needle falls on the cleaning position, the glue needle can be cleaned. Further, a material tray group and a first winding column 8 are respectively arranged on both sides of the cleaning position (that is, the two clamping units) in the longitudinal direction, and the material tray group includes a first material tray 2 and a second material tray 3, and the first material tray 2 and the second material tray 3 are arranged in a horizontal interval. The two ends of the dust-free cloth 4 are respectively connected to the two material trays, and the dust-free cloth 4 bypasses the first winding column 8, so that the dust-free cloth 4 is arranged in a "V" shape, and then the cleaning position just falls into the "V" shaped space of the dust-free cloth 4, and the dust-free cloth 4 is also respectively in contact with the two clamping units, so that when the two clamping units clamp the glue needle, the dust-free cloth 4 clamps the glue needle. Further preferably, the two material trays are respectively connected to the substrate 1 in rotation, thereby driving the dust-free cloth 4 to move, so as to wipe the glue discharge needle, thereby wiping the glue remaining on the glue discharge needle. To further illustrate, the utility model takes the direction of movement of the two clamping units towards each other and adjacent to each other as the horizontal direction, the surface of the substrate 1 as the plane, the direction perpendicular to the plane as the vertical direction, and the directions perpendicular to the vertical and horizontal directions as the longitudinal direction.

[0043] Furthermore, a second winding column 9 and a third winding column 10 are also provided between the clamping assembly 5 and the tray group, and the two winding columns are also arranged at intervals in the horizontal direction. The dust-free cloth 4 between the first tray 2 and the first winding column 8 bypasses the second winding column 9, and correspondingly, the dust-free cloth 4 between the second tray 3 and the first winding column 8 also bypasses the third winding column 10, so that the dust-free cloth 4 is guided by the second winding column 9, the first winding column 8 and the third winding column 10 in sequence. Further preferably, the spacing between the second winding column 9 and the third winding column 10 is smaller than the spacing between the first tray 2 and the second tray 3, and larger than the spacing between the adjacent side walls of the two clamping units, so that the "V"-shaped opening formed by them is smaller, and its surface just matches the clamping unit, so as to avoid the dust-free cloth 4 from breaking due to excessive bending caused by contact with the clamping unit, thereby improving the overall stability of the cleaning device. In addition, the first material tray 2 and the second material tray 3 are symmetrically arranged with respect to the center plane, and the second winding column 9 and the first winding column 8 are also symmetrically arranged with respect to the center plane, and the center plane passes through the center of the first winding column 8, and correspondingly, the two clamping units can also be symmetrically arranged with respect to the center plane, so that the entire automatic cleaning device is symmetrically arranged with respect to the center plane.

[0044] Furthermore, a first through hole is provided on the substrate 1, which passes through the upper and lower surfaces thereof. The through hole is located between the two clamping units on the substrate 1. When the glue discharge needle is located above the first through hole, the glue discharge needle is located at the cleaning position, and a glue receiving cup 601 is provided below the first through hole, so that the glue flowing out of the glue discharge needle and the glue overflowing during the wiping process will fall into the glue receiving cup 601. Further preferably, the first through hole is a waist-shaped hole, which is extended in the horizontal direction, so that when the glue discharge needle falls above the waist-shaped hole, the two clamping units can move toward each other, thereby clamping the glue discharge needle. Further explanation: the cleaning position is not a fixed point, but within a range between the two clamping units, the dust-free cloth 4 is tightly attached to the glue discharge needle by the clamping unit to achieve wiping of the glue discharge needle, so as to reduce the precision required for cleaning of the utility model.

[0045] Furthermore, the clamping unit includes a clamping block 501 and a soft clamping head 502 arranged on the end face of the clamping block 501. A groove is provided on the side wall surface of the clamping block 501 close to another clamping unit, and the soft clamping head 502 is arranged in the groove. Further preferably, the groove is in the form of a notch, and the vertical length of the notch is equivalent to the vertical length of the glue discharge needle, so that when the two clamping units are clamped, the two soft clamping heads 502 can clamp it well, so that the dust-free cloth 4 is tightly attached to the glue discharge needle, and then the glue discharge needle is wiped. In addition, the material of the soft clamping head 502 is preferably foam sponge.

[0046] Furthermore, the clamping assembly 5 further includes a driving unit 503, and the driving unit 503 drives the clamping unit to perform lateral reciprocating motion, thereby enabling the two clamping units to move toward or away from each other.

[0047] In one embodiment, the driving unit 503 and the clamping unit are matched one by one, and the end of the clamping unit away from the glue discharge needle is connected to the driving unit 503, so as to reciprocate under the drive of the driving unit 503. Furthermore, the clamping unit is slidably connected to the base plate 1, and a guide rail arranged in the transverse direction is provided on the base plate 1. A slider matching the guide rail is provided between the clamping unit and the driving unit 503, and the clamping unit can move transversely above the waist-shaped hole through the sliding connection between the slider and the guide rail.

[0048] In another embodiment, Figure 4As shown, the driving unit 503 is arranged at the bottom of the substrate 1. The driving unit 503 includes a driving part and two moving parts arranged on the end surface of the driving part. The two moving parts can move towards or away from each other. Further, the two moving parts are arranged below the waist-shaped hole. Connectors 504 are respectively arranged between the two moving parts and the two clamping units. The connecting part 504 is arranged through the waist-shaped hole, one end of which is fixedly connected to the moving part, and the other end is connected to the clamping block 501 in the clamping unit, so that the driving unit 503 can drive the clamping unit to move. Further preferably, the driving unit 503 is preferably a cylinder.

[0049] Furthermore, a driving motor 12 and a damper 13 are also provided on the bottom surface of the substrate 1, wherein the driving motor 12 matches the second material tray 3, the outer shell of the driving motor 12 is fixedly connected to the substrate 1, and the movable part (i.e., the motor shaft) is fixedly connected to the second material tray 3, thereby driving the second material tray 3 to rotate, and the damper 13 matches the first material tray 2, so that the first material tray 2 can achieve stable rotation driven by the dust-free cloth 4. Further preferably, a detection unit is also provided on the substrate 1, and the detection unit is electrically connected to the driving motor 12, for detecting the running distance of the dust-free cloth 4, so as to realize automatic control of the driving motor 12. To further illustrate, in actual application, when the glue discharging needle falls into the cleaning position through the moving mechanism, the clamping assembly 5 clamps the dust-free cloth 4 on its periphery, and the moving mechanism continues to drive the glue discharging needle to reciprocate up and down to perform the wiping work. After the wiping work is completed, the clamping assembly 5 is released and the glue discharging needle is retracted. At this time, the second material tray 3 rotates to recover the dust-free cloth 4 that has wiped the glue discharging needle, so that the dust-free cloth 4 on the "V"-shaped structure is a clean cloth, which is convenient for the next use.

[0050] In one embodiment, the detection unit is a camera assembly, and the dust-free cloth 4 is provided with a plurality of marks at equal intervals along its length direction. When the second material tray 3 rotates to drive the dust-free cloth 4 to move, the camera assembly detects that the mark disappears. When the mark in the camera assembly reappears, it is immediately determined that the dust-free cloth 4 has run a sufficient distance, so that the second material tray 3 stops rotating.

[0051] like Figure 3As shown, in another preferred embodiment, the detection unit includes a sensing sheet 15 and an angle sensor 14 for realizing angle detection by detecting the sensing sheet 15. A fourth winding column 11 is also arranged on the substrate 1, and the fourth winding column 11 is arranged between the third winding column 10 and the second material tray 3. The dust-free cloth 4 bypasses the fourth winding column 11 and abuts against it, and the fourth winding column 11 can rotate with the movement of the dust-free cloth 4, and one end thereof passes through the substrate 1 to extend into the bottom of the substrate 1 and is fixedly connected to the sensing sheet 15, so that the sensing sheet 15 can rotate with the rotation of the fourth winding column 11. When the fourth winding column 11 rotates a certain angle, the dust-free cloth 4 can be recycled. At this time, one end of the angle sensor matches the sensing sheet 15 to detect its rotation angle, and the other end is electrically connected to the drive motor 12 to feed back information to the drive motor 12 to realize control of its operation. Further preferably, the sensing piece 15 is cross-shaped, and sensing points are respectively arranged at the four ends of the sensing piece 15 . After the angle sensor 14 detects the sensing points on the sensing piece 15 , it immediately feeds back to the driving motor 12 to stop the rotation.

[0052] Furthermore, a bearing is provided between each winding column (including the first, second, third and fourth winding columns) and the base plate 1, the outer ring of the bearing is fixedly connected to the base plate 1, and the inner ring of the bearing is fixedly connected to the winding column, so that the portion of the winding column located above the base plate 1 can rotate with the movement of the dust-free cloth 4. Further preferably, in order to protect the components disposed below the base plate 1, such as the damper 13, the drive motor 12, the detection unit and the drive unit 503, a protective shell 16 is also provided accordingly to protect the relevant components.

[0053] Furthermore, if Figure 5 As shown, the glue needle cleaning device also includes a glue unit 6, which includes a glue cup 601 and a cup holder 602 for supporting the glue cup 601. A first bracket 603 is provided between the cup holder 602 and the substrate 1 to achieve a fixed connection between the cup holder 602 and the substrate 1, and a bottom plate 605 is also provided below the cup holder 602, and the cup holder 602 and the bottom plate 605 are connected via a second bracket 604. Further preferably, a mounting plate 7 is also provided at the bottom of the bottom plate 605, and the mounting plate 7 can be installed on the glue coating device to facilitate the cleaning of the glue needle on the glue coating device, or the mounting plate 7 can also be installed on the motion mechanism to move in three directions, namely, horizontal, longitudinal and vertical, so that when the glue needle is kept vertically downward, the glue needle can be automatically cleaned.

[0054] The glue needle cleaning device in the utility model includes a base plate and a clamping assembly arranged on the base plate, a material tray group and a first winding column are respectively arranged on both longitudinal sides of the clamping assembly, the material tray group includes a first material tray and a second material tray arranged at intervals in the transverse direction, and the dust-free cloth passes through the first material tray, the first winding column and the second material tray in sequence, and the dust-free cloth is clamped around the glue needle by the clamping assembly, and then the dust-free cloth wraps the glue needle, and when the glue needle reciprocates up and down, the residual glue on the glue needle can be removed, and after the cleaning movement is completed, the dust-free cloth can move with the rotation of the material tray to recycle the dust-free cloth stained with residual glue. The overall structural design of the utility model is compact, and can be directly set on the glue coating equipment to clean the glue needle, and can be adapted to a variety of glue needles, and has good use value.

[0055] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A glue needle cleaning device, used for cleaning the residual glue on the glue needle, characterized in that: It comprises a base plate and a clamping assembly arranged on the base plate, wherein the clamping assembly comprises two clamping units arranged at intervals in the lateral direction, and the relative positions of the two clamping units in the lateral direction of the base plate are adjustable to clamp the glue discharge needle; A material tray group and a first winding column are respectively arranged on both longitudinal sides of the clamping assembly, the material tray group includes a first material tray and a second material tray arranged in a lateral interval, a dust-free cloth is arranged between the two material trays, both ends of the dust-free cloth are respectively connected to the two material trays, and the two material trays are respectively rotatably connected to the substrate, The first winding column is arranged on the substrate, and the dust-free cloth is wound around the first winding column so that the dust-free cloth forms a "V" shape, and the dust-free cloth is respectively abutted against the two clamping units.

2. The glue needle cleaning device according to claim 1, wherein: A second winding column and a third winding column are also arranged between the clamping assembly and the tray group. The second winding column and the third winding column are arranged in a lateral interval, and the dust-free cloth between the first tray and the first winding column bypasses the second winding column, and the dust-free cloth between the second tray and the first winding column bypasses the third winding column.

3. The glue needle cleaning device according to claim 2, wherein: The base plate is provided with a waist-shaped hole penetrating the upper and lower surfaces, and the waist-shaped hole extends in the horizontal direction.

4. The glue needle cleaning device according to claim 3, wherein: The clamping assembly also includes a driving unit for driving the two clamping units to move. The driving unit is arranged on the bottom surface of the substrate. The two moving parts in the driving unit pass through the waist-shaped holes respectively and are connected to the two clamping units to drive the two clamping units to move toward or away from each other.

5. The glue needle cleaning device according to any one of claims 1 to 4, wherein: The bottom surface of the substrate is also provided with a driving motor and a damper; The movable part of the driving motor is fixedly connected to the second material tray to drive the second material tray to rotate. The damper is connected to the first material tray, so that the first material tray can rotate driven by the dust-free cloth.

6. The glue needle cleaning device according to claim 5, wherein: The substrate is also provided with a detection unit for detecting the running distance of the dust-free cloth.

7. The glue needle cleaning device according to claim 6, wherein: The detection unit includes a fourth winding column, a sensing sheet and an angle sensor, The fourth winding column is arranged between the third winding column and the second material tray, the dust-free cloth goes around the fourth winding column and abuts against it, and the fourth winding column can rotate with the movement of the dust-free cloth; One end of the fourth winding column located on the bottom surface of the substrate is fixedly connected to the sensing sheet, one end of the angle sensor matches the sensing sheet, and the other end thereof is electrically connected to the driving motor.

8. The glue needle cleaning device according to claim 7, wherein: A bearing is provided between the fourth winding column and the base plate, the outer ring of the bearing is fixedly connected to the base plate, and the inner ring of the bearing is fixedly connected to the fourth winding column.

9. The glue needle cleaning device according to any one of claims 1 to 4, wherein: The clamping unit comprises a clamping block and a soft clamping head. A groove is formed on a side wall surface of the clamping block close to another clamping block, and the soft clamping head is arranged in the groove.

10. The glue needle cleaning device according to claim 3 or 4, wherein: A glue receiving cup is also arranged at the bottom of the waist-shaped hole.

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