An adaptive glue removal device for a glue dispensing needle

Abstract

This invention relates to the field of dispensing equipment technology, and more particularly to an adaptive glue-cleaning device for dispensing needles, comprising a glue-wiping mechanism, a transmission mechanism, a flipping mechanism, a clamping and monitoring mechanism, and a control mechanism. The invention achieves automatic flipping of the cloth strip by setting up a flipping mechanism, and utilizes both sides of the cloth strip to clean the dispensing needle, enabling double-sided use of the cloth strip, increasing its utilization rate and reducing its replacement cycle, thereby increasing the working efficiency of the glue-cleaning device. The control mechanism controls the finger cylinders of the glue-wiping mechanism to clamp the cloth strip and the needle, and the clamping and monitoring mechanism rotates and pulls out the needle, achieving automatic glue-cleaning operation. Upon completion of each glue-cleaning operation, the real-time residual glue area is determined based on the minimum residual glue area; any uncleaned dispensing needles are cleaned again, thus ensuring dispensing quality and meeting the requirements of automated production lines.

Description

Technical Field

[0001] This invention relates to the field of dispensing equipment technology, and more particularly to an adaptive glue-cleaning device for a dispensing needle. Background Technology

[0002] With the development of various dispensing processes, the requirements for cleaning dispensing needles are becoming increasingly stringent. The precision of dispensing is not only determined by the dispensing valve, but also by the precision of the dispensing needle to be cleaned, which has a significant impact on the dispensing effect. This is especially true in the micro-dispensing industry, such as LED and optical communication. Therefore, high-precision dispensing needles to be cleaned have demonstrated their advantages. However, after completing a dispensing operation, a small amount of adhesive often remains on the dispensing needle. If the dispensing needle is not cleaned in time, the adhesive will solidify with air over a long period of time, seriously affecting the quality of the dispensing operation. Most existing methods for cleaning dispensing needles rely on manual wiping, which is not only time-consuming and labor-intensive, thus reducing work efficiency, but also difficult to meet the needs of automated production lines.

[0003] Chinese Patent Publication No. CN115318563A discloses a dispensing needle cleaning device. Its technical point is that a clamping component is driven to rotate by a cleaning component and a rotating drive component, enabling circumferential wiping of the dispensing needle. It is evident that existing automatic dispensing cleaning equipment suffers from limitations due to the limited length of the cleaning cloth strip, requiring manual periodic replacement. This makes it difficult to maintain a long-term automatic cleaning process. Increasing the length of the clean cloth to extend the cloth replacement cycle would increase the size of the cleaning device. If the dispensing cleaning equipment is applied to an automated production line, frequent periodic stops are needed to replace the cloth strip to ensure effective cleaning and maintain dispensing quality. Therefore, an adaptive dispensing cleaning device is needed that can not only automatically identify various dispensing needle types but also increase the automatic cleaning cycle, thereby improving cleaning efficiency and meeting the operational requirements of automated production lines, ensuring dispensing quality and improving dispensing efficiency. Summary of the Invention

[0004] To address this issue, the present invention provides an adaptive glue removal device for dispensing needles, which overcomes the problem in the prior art that it is difficult to automatically identify the dispensing needles to be cleaned and complete the glue removal process.

[0005] To achieve the above objectives, the present invention provides an adaptive adhesive removal device for a dispensing needle, comprising,

[0006] The transmission mechanism includes a take-up tray and a feed tray. A strip of cloth is wound around the end face of the feed tray. One end of the strip of cloth is connected to the take-up tray. The take-up tray can rotate to wind and retract the strip of cloth, and drive the strip of cloth to move so that the feed tray rotates to feed the strip of cloth out.

[0007] A flipping mechanism is used to flip and guide the strips of cloth between the receiving tray and the feeding tray. It includes a flipping shaft and a guide plate. The flipping shaft is used to flip the strips of cloth in the rear gluing area and guide them to the front gluing area. The guide plate is disposed between the strips of cloth in the rear gluing area and the strips of cloth in the front gluing area to separate the strips of cloth in the rear gluing area and the strips of cloth in the front gluing area.

[0008] The adhesive application mechanism includes a front adhesive application area and a rear adhesive application area. The front adhesive application area supports the fabric strip through several support shafts, causing the fabric strip to bend to one side. The rear adhesive application area supports the fabric strip through several support shafts, causing the fabric strip to bend to the other side. The adhesive application mechanism also includes a finger cylinder for squeezing the bent part of the fabric strip in the front or rear adhesive application area, so that the fabric strip contacts the adhesive needle to be cleaned for adhesive application. The finger cylinder is equipped with a pressure sensor.

[0009] The clamping and monitoring mechanism is used to clamp and move the dispensing needle to be cleaned to the corresponding position of the wiping mechanism. The clamping and monitoring mechanism can also drive the clamped dispensing needle to be cleaned to rotate. An industrial camera component is provided on one side of the clamping and monitoring mechanism to collect real-time needle images of the dispensing needle to be cleaned and cloth strip images of the front and rear wiping areas.

[0010] A control mechanism is connected to the adhesive application mechanism, the transmission mechanism, and the clamping and monitoring mechanism, respectively. The control mechanism can obtain the real-time adhesive area and the real-time residual adhesive area of ​​the dispensing needle to be cleaned based on the real-time needle image collected by the clamping and monitoring mechanism. It determines whether to apply adhesive to the dispensing needle to be cleaned based on the lowest residual adhesive area. After determining that one adhesive application operation has been completed on the dispensing needle to be cleaned, it determines whether to continue applying adhesive based on the lowest residual adhesive area. The control mechanism can also select the current adhesive application area of ​​the dispensing needle to be cleaned based on the cloth strip images of the front and rear adhesive application areas collected by the clamping and monitoring mechanism.

[0011] Furthermore, the flipping shaft can change the orientation of either of the adhesive-applying surfaces of the fabric strip, which is used to flip the fabric strip with the adhesive-applying surface facing up that is input from the rear adhesive-applying area, so that the input fabric strip is output to the front adhesive-applying area with the other adhesive-applying surface facing up. The fabric strip output end and input end of the flipping shaft are on the same side of the flipping shaft.

[0012] Furthermore, the adhesive application mechanism also includes a first support shaft, a second support shaft, and a third support shaft. The first support shaft, the second support shaft, and the third support shaft are parallel to each other and are all perpendicular to the same plane. On this plane, the third support shaft is positioned below the first support shaft and the second support shaft, so that the fabric strip enters from the upper side of the first support shaft, passes around the lower side of the third support shaft, and then exits from the upper side of the second support shaft, forming a bent fabric strip that constitutes the front adhesive application area or the rear adhesive application area. The length of any of the support shafts is greater than or equal to twice the width of the fabric strip.

[0013] Furthermore, the adhesive wiping mechanism also includes a solenoid valve and adhesive wiping blocks disposed on the two output clamping plates of the finger cylinder. The solenoid valve is disposed at the lower end of the finger cylinder and is used to drive the two output clamping plates of the finger cylinder to move towards each other, thereby causing the two adhesive wiping blocks on the two output clamping plates to move towards each other. The rear ends of the two adhesive wiping blocks contact and clamp the bent cloth strip at the rear adhesive wiping area to clean the rear adhesive wiping area, or the front ends of the two adhesive wiping blocks contact and clamp the bent cloth strip at the front adhesive wiping area to clean the front adhesive wiping area.

[0014] Furthermore, the transmission mechanism also includes a motor, which is located at the rear end of the receiving tray to drive the receiving tray to rotate, so as to wind and collect the cloth strips with residual adhesive on both sides. The feeding tray is connected to the receiving tray through the cloth strips. The feeding tray sends out the wound cloth strips by rotating, so as to convey the cloth strips without residual adhesive to the adhesive wiping area for adhesive wiping operation.

[0015] Furthermore, the control mechanism is equipped with a minimum residual adhesive area. The control mechanism can obtain the real-time adhesive area of ​​the dispensing needle to be cleaned through the acquired real-time needle image, and determine the real-time adhesive area of ​​the dispensing needle to be cleaned based on the minimum residual adhesive area.

[0016] If the real-time adhesive area is greater than or equal to the minimum residual adhesive area, the control mechanism will collect images of the cloth strips in the front and rear adhesive wiping areas through the clamping and monitoring mechanism to select the current adhesive wiping area of ​​the dispensing needle to be cleaned.

[0017] If the real-time adhesive area is less than the minimum residual adhesive area, the control mechanism determines that it is not necessary to wipe the adhesive from the dispensing needle to be cleaned, and the clamping and monitoring mechanism moves the clamped dispensing needle to the work area to perform the dispensing operation.

[0018] Furthermore, the control mechanism is equipped with a preset transmission displacement. When the control mechanism determines that the real-time adhesive area is greater than or equal to the minimum residual adhesive area and selects the current adhesive wiping area of ​​the dispensing needle to be cleaned, the clamping and monitoring mechanism acquires images of the fabric strips in the front and rear adhesive wiping areas. The control mechanism then determines the residual adhesive status of the fabric strips in the front and rear adhesive wiping areas.

[0019] If there is residual glue on the cloth strip in both the front and rear glue-wiping areas, the control mechanism controls the motor to drive the receiving tray to rotate so that the cloth strip is transmitted to a preset transmission displacement. The control mechanism selects the front or rear glue-wiping area as the current glue-wiping area and controls the clamping and monitoring mechanism to move to the current glue-wiping area to wipe the glue on the dispensing needle to be cleaned.

[0020] If there is no residual adhesive on the cloth strips in both the front and rear adhesive application areas, the control mechanism selects either the front or rear adhesive application area as the current adhesive application area and controls the clamping and monitoring mechanism to move to the current adhesive application area to apply adhesive to the dispensing needle to be cleaned.

[0021] If there is no residual adhesive on the cloth strip in either the front or rear adhesive application area, the control mechanism selects the adhesive application area containing the cloth strip without residual adhesive as the current adhesive application area, and controls the clamping and monitoring mechanism to move to the current adhesive application area to apply adhesive to the dispensing needle to be cleaned.

[0022] Furthermore, the control mechanism is equipped with a standard clamping pressure. When the control mechanism controls the clamping and monitoring mechanism to move to the current adhesive application area to apply adhesive to the needle to be cleaned, it controls the two output clamping plates of the finger cylinder to move towards each other, clamping the cloth strip in the current adhesive application area to the needle to be cleaned. The clamping and monitoring mechanism controls the needle to be cleaned to rotate and move it to the upper side of the current adhesive application area. When the needle to be cleaned rotates and moves, the control mechanism obtains the real-time clamping pressure of the adhesive application block through the pressure sensor on the finger cylinder, and determines the real-time clamping pressure according to the standard clamping pressure.

[0023] If the real-time clamping pressure is less than the standard clamping pressure, the control mechanism continues to control the two output clamping plates of the finger cylinder to move towards each other until it is determined that the real-time clamping pressure is greater than or equal to the standard clamping pressure, at which point the control mechanism stops the two output clamping plates of the finger cylinder from moving towards each other.

[0024] If the real-time clamping pressure is greater than or equal to the standard clamping pressure, the control mechanism controls the two output clamping plates of the finger cylinder to stop moving towards each other;

[0025] The control mechanism stops adjusting the finger cylinder and resets it once the dispensing needle to be cleaned moves out of the current dispensing area. The control mechanism records one dispensing operation of the dispensing needle to be cleaned as completed. The number of dispensing operations can be accumulated.

[0026] Furthermore, the control mechanism can acquire a real-time image of the dispensing needle to be cleaned via the clamping and monitoring mechanism when the dispensing needle to be cleaned completes one cleaning cycle. The control mechanism obtains the real-time residual adhesive area of ​​the dispensing needle to be cleaned and determines the real-time residual adhesive area based on the lowest residual adhesive area.

[0027] If the real-time residual adhesive area is less than or equal to the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has been completed, and the clamping and monitoring mechanism moves the clamped dispensing needle to be cleaned to the work area to perform the dispensing operation.

[0028] If the real-time residual adhesive area is greater than the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has not been completed. The control mechanism will determine the cumulative number of adhesive wiping operations of the current dispensing needle to be cleaned in order to determine whether to perform the adhesive wiping operation on the current dispensing needle to be cleaned.

[0029] Furthermore, the control mechanism is configured with a set number of repeated adhesive application cycles. When the control mechanism determines that the real-time residual adhesive area after the dispensing needle to be cleaned completes one application is greater than the minimum residual adhesive area, it will acquire the current cumulative number of adhesive application operations for the dispensing needle to be cleaned, and determine the cumulative number of adhesive application operations based on the set number of repeated adhesive application cycles.

[0030] If the cumulative number of adhesive wiping operations is less than the number of repeated adhesive wiping operations, the control mechanism repeats the above process: based on the cloth strip images of the front and rear adhesive wiping areas collected by the clamping and monitoring mechanism, selects the current adhesive wiping area of ​​the dispensing needle to be cleaned, and controls the clamping and monitoring mechanism to move to the current adhesive wiping area to perform the adhesive wiping operation on the dispensing needle to be cleaned.

[0031] If the cumulative number of adhesive wiping operations is greater than or equal to the number of repeated adhesive wiping operations, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has been completed, and marks the dispensing needle to be cleaned.

[0032] Compared with the prior art, the beneficial effects of this invention are as follows: by setting a transmission mechanism, the cloth strip can move bidirectionally, thereby updating the cloth strip in the adhesive wiping area. Simultaneously, the receiving tray collects the cloth strip with residual adhesive on both sides, making operation simple and direct. By setting a flipping mechanism, the adhesive cleaning device automatically flips the cloth strip and conveys both sides to the adhesive wiping mechanism for adhesive wiping. By setting the adhesive wiping mechanism, both sides of the cloth strip are used to clean the adhesive dispensing needle, realizing double-sided use of the cloth strip, increasing the utilization rate of the cloth strip and reducing the cloth strip replacement cycle, thereby increasing the working efficiency of the adhesive cleaning device. By setting a clamping and monitoring mechanism, the movement of the adhesive dispensing needle to be cleaned is controlled. By setting a control mechanism, the device determines the area to be cleaned. The system monitors the adhesive residue on the dispensing needles to determine whether to initiate a cleaning process. When the real-time residual adhesive area of ​​the needle is greater than or equal to the minimum residual adhesive area, a clamping and monitoring mechanism moves the needle to a clean cloth strip in the wiping area. The finger cylinders of the wiping mechanism clamp the cloth strip and the needle, and the clamping and monitoring mechanism then rotates and pulls the needle out, achieving automatic adhesive removal. After each cleaning operation, the system checks the real-time residual adhesive area against the minimum residual adhesive area to determine whether to continue cleaning the needle. This ensures that any needles not properly cleaned continue the cleaning process, guaranteeing dispensing quality and meeting the requirements of automated production lines.

[0033] Furthermore, by setting a flipping shaft to flip the fabric strip, since the length of the flipping shaft is greater than the width of the fabric strip, the fabric strip is wound half a turn around the flipping shaft to guide both sides of the fabric strip to the glue-wiping mechanism, so that both sides of the fabric strip can contact the needle and perform the glue-cleaning operation. By setting guide plates between the fabric strips guided by the flipping shaft, the fabric strips are prevented from tangling, so that the fabric strips input to the flipping shaft and output to the flipping shaft are transmitted to the glue-wiping mechanism on different planes, ensuring the effective glue-cleaning operation of double-sided fabric strips.

[0034] Furthermore, by setting a first support shaft, a second support shaft, and a third support shaft, the cloth strip is supported in a V-shaped structure, which ensures both the smoothness of cloth strip transmission and sufficient contact area between the cloth strip and the needle, thereby ensuring the effectiveness of the glue application. The length of the support shaft is greater than or equal to the width of two cloth strips, indicating that the surface of the support shaft is sufficient to accommodate the width of two cloth strips. That is, both sides of the cloth strip are wrapped around the support shaft without tangling, ensuring the stable operation of the glue removal device.

[0035] Specifically, the fabric strip passes around the first support shaft, which exerts an upward supporting force on the fabric strip. It then passes around the third support shaft, which exerts a downward supporting force on the fabric strip. Finally, it passes around the second support shaft, which exerts an upward supporting force on the fabric strip. The fabric strip includes two adhesive-coated surfaces, which are input to the first support shaft with either adhesive-coated surface facing upwards. If this upward-facing adhesive-coated surface is used as the input surface, the first support shaft contacts the adhesive-coated surface opposite to the input surface of the fabric strip and guides the fabric strip to the third support shaft. The third support shaft then contacts the input surface of the fabric strip and guides the fabric strip to the second support shaft. The second support shaft then contacts the adhesive-coated surface opposite to the input surface and outputs the fabric strip to the transmission mechanism.

[0036] In particular, by setting up a motor, the motor drives the receiving tray to rotate clockwise, which winds up and collects the cloth strips with residual adhesive. Then, by moving the cloth strips, the cloth strips in the adhesive wiping area are replaced, that is, the cloth strips with residual adhesive in the adhesive wiping area are moved out of the adhesive wiping area, and the clean cloth strips are moved to the adhesive wiping area.

[0037] Furthermore, the minimum residual adhesive area represents the set area of ​​adhesive, and the set value should be close to zero. By setting the minimum residual adhesive area, the control mechanism compares the minimum residual adhesive area with the real-time adhesive area. If the control mechanism determines that the real-time adhesive area is greater than or equal to the minimum residual adhesive area, it means that there is a lot of adhesive at the dispensing needle to be cleaned, and adhesive wiping and cleaning are required. If the control mechanism determines that the real-time adhesive area is less than the minimum residual adhesive area, it means that the amount of adhesive at the dispensing needle to be cleaned is close to zero, and adhesive wiping and cleaning are not required.

[0038] In particular, by clamping and monitoring the cloth strip images of the front and rear adhesive application areas, the control mechanism determines the residual adhesive on the cloth strips in the front and rear adhesive application areas, and selects the area where the cloth strip without residual adhesive is located to perform the adhesive application operation on the dispensing needle to be cleaned. This method is highly intelligent and ensures effective adhesive application.

[0039] Furthermore, by setting a standard clamping pressure, the pressure exerted by the adhesive-cleaning block on the cloth strip and the adhesive dispensing needle to be cleaned can be controlled in real time. This ensures that during the rotation and movement of the adhesive dispensing needle, the cloth strip will not be subjected to excessive force, which could cause damage to the contact area between the dispensing needle and the cloth strip. Conversely, the cloth strip will not be subjected to insufficient force, which could cause the cloth strip to loosen its grip on the dispensing needle. This would result in a smaller contact area between the cloth strip and the dispensing needle where there is adhesive, leading to less friction and reduced adhesive removal effect.

[0040] In particular, when the dispensing needle to be cleaned completes one cleaning cycle, the control mechanism collects real-time images of the needle and determines the real-time residual adhesive area. The cleaning effect is automatically judged. If the control mechanism determines that the real-time residual adhesive area is less than or equal to the minimum residual adhesive area, it means that the cleaning effect is good and no further cleaning is needed. If the control mechanism determines that the real-time residual adhesive area is greater than the minimum residual adhesive area, it means that there is still adhesive on the dispensing needle and the cleaning operation needs to be performed again. This ensures that the cleanliness of the dispensing needle meets the requirements of the automated production line, thereby guaranteeing the dispensing quality.

[0041] Furthermore, by setting the number of repeated wiping cycles within the control mechanism, the number of times the cleaning device wipes the current dispensing needle is limited, thus preventing the control mechanism's judgment from being affected by the dispensing needle itself being ineffective. By marking the dispensing needle currently to be cleaned, the effective operation of the adaptive cleaning device is ensured. Attached Figure Description

[0042] Figure 1 This is a three-dimensional front view of the adaptive glue removal device for the dispensing needle according to an embodiment of the present invention;

[0043] Figure 2 This is a three-dimensional top view of the adaptive glue removal device for the dispensing needle according to an embodiment of the present invention;

[0044] Figure 3 This is a three-dimensional rear view of the adaptive glue removal device for the dispensing needle according to an embodiment of the present invention;

[0045] Figure 4 This is a three-dimensional front view of the replaceable glue-wiping mechanism of the adaptive glue-removing device for the dispensing needle according to an embodiment of the present invention.

[0046] Figure 5 The rear view of the three-dimensional structure of the adaptive glue removal device for the dispensing needle in an embodiment of the present invention is shown. Implementation

[0047] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0048] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0049] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0050] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Please see Figure 1 The figure shown is a three-dimensional structural front view of the adaptive glue removal device for a dispensing needle according to an embodiment of the present invention. The present invention discloses an adaptive glue removal device for a dispensing needle, comprising: a transmission mechanism 1, a receiving tray 101, a feeding tray 102, a motor 103, a flipping mechanism 2, a flipping shaft 201, a guide plate 202, a cloth strip 203 for inputting the front glue-wiping area, a cloth strip 204 for inputting the rear glue-wiping area, a glue-wiping mechanism 3, a first support shaft 301, a second support shaft 302, a third support shaft 303, a solenoid valve 304, a finger cylinder 305, two output clamping plates 306, a glue-wiping block 307, a front glue-wiping area 308, a rear glue-wiping area 309, a cloth strip 4, a clamping and monitoring mechanism (not shown in the figure), and a control mechanism (not shown in the figure).

[0052] The transmission mechanism 1 includes a receiving tray 101 and a feeding tray 102. A strip of cloth is wound around the end face of the feeding tray 102. One end of the strip of cloth is connected to the receiving tray 101. The receiving tray 101 can rotate to wind and retract the strip of cloth, and drive the strip of cloth to move so that the feeding tray 102 rotates to feed the strip of cloth out.

[0053] The flipping mechanism 2 is used to flip and guide the strip of cloth between the receiving tray 101 and the feeding tray 102. It includes a flipping shaft 201 and a guide plate 202. The flipping shaft 201 is used to flip the strip of cloth in the rear adhesive area and guide it to the front adhesive area 308. The guide plate 202 is disposed between the strip of cloth in the rear adhesive area 309 and the strip of cloth in the front adhesive area 308 to separate the strip of cloth in the rear adhesive area 309 and the strip of cloth in the front adhesive area 308.

[0054] The adhesive application mechanism 3 includes a front adhesive application area 308 and a rear adhesive application area 309. The front adhesive application area 308 supports the fabric strip through several support shafts, causing the fabric strip to bend to one side. The rear adhesive application area 309 supports the fabric strip through several support shafts, causing the fabric strip to bend to the other side. The adhesive application mechanism also includes a finger cylinder 305, which is used to squeeze the bent part of the fabric strip in the front adhesive application area 308 or the rear adhesive application area 309, so that the fabric strip contacts the adhesive needle to be cleaned for adhesive application. The finger cylinder 305 is equipped with a pressure sensor.

[0055] The clamping and monitoring mechanism is used to clamp and move the dispensing needle to be cleaned to the corresponding position of the wiping mechanism. The clamping and monitoring mechanism can also drive the clamped dispensing needle to be cleaned to rotate. An industrial camera component is provided on one side of the clamping and monitoring mechanism to collect real-time needle images of the dispensing needle to be cleaned and cloth strip images of the front wiping area 308 and the rear wiping area 309.

[0056] A control mechanism is connected to the adhesive wiping mechanism, the transmission mechanism, and the clamping and monitoring mechanism, respectively. The control mechanism can obtain the real-time adhesive area and the real-time residual adhesive area of ​​the dispensing needle to be cleaned based on the real-time needle image collected by the clamping and monitoring mechanism. It determines whether to wipe the dispensing needle to be cleaned based on the minimum residual adhesive area. After determining that one wiping operation has been completed on the dispensing needle to be cleaned, it determines whether to continue wiping the dispensing needle to be cleaned based on the minimum residual adhesive area. The control mechanism can also determine the current wiping area 308 of the dispensing needle to be cleaned based on the cloth strip images of the front wiping area 308 and the rear wiping area 309 collected by the clamping and monitoring mechanism.

[0057] In this embodiment, if the dispensing valve is used continuously for a long time, glue residue will remain on the dispensing needle. If it is not cleaned in time, it will affect the dispensing accuracy of the dispensing valve, and even cause the needle to be blocked by the residual glue. Therefore, the dispensing valve usually works in conjunction with an automatic glue cleaning device. After the dispensing valve is used a certain number of times or for a certain period of time, the automatic glue cleaning device will clean the glue residue on the dispensing valve needle, thereby ensuring the cleanliness of the dispensing valve needle and improving the needle's service life. Conventional automatic glue cleaning devices use a finger cylinder to clamp the lint-free cloth strip and the dispensing needle together. The dispensing valve needle then moves in a certain direction to break free from the clamping of the finger cylinder. Since the residual glue on the needle is in direct contact with the lint-free cloth, the residual glue remains on the lint-free cloth strip during the movement of the dispensing valve, and the needle is cleaned without damage. Then, the motor drives the lint-free cloth strip to roll up the lint-free cloth strip with residual glue.

[0058] By setting up a transmission mechanism 1, the cloth strip can move in both directions, thereby updating the cloth strip in the adhesive wiping area. At the same time, the receiving tray 101 collects the cloth strip with residual adhesive on both sides. The operation is simple and direct. By setting up a flipping mechanism, the adhesive cleaning device can automatically flip the cloth strip and send both sides of the cloth strip to the adhesive wiping mechanism for adhesive wiping. By setting up the adhesive wiping mechanism, both sides of the cloth strip can be used to clean the adhesive dispensing needle, realizing the double-sided use of the cloth strip, increasing the utilization rate of the cloth strip and reducing the cloth strip replacement cycle, thereby increasing the working efficiency of the adhesive cleaning device. By setting up a clamping and monitoring mechanism, the movement of the adhesive dispensing needle to be cleaned can be controlled. By setting up a control mechanism, the adhesive status of the adhesive dispensing needle to be cleaned can be determined. Furthermore, to determine whether to control the cleaning of the dispensing needle for glue removal, when the real-time residual glue area of ​​the dispensing needle is greater than or equal to the minimum residual glue area, the clamping and monitoring mechanism controls the dispensing needle to be moved to the clean cloth strip in the glue wiping area. The finger cylinder 305 of the glue wiping mechanism clamps the cloth strip and the dispensing needle, and the clamping and monitoring mechanism rotates and pulls out the needle, realizing automatic glue removal. After completing one glue removal operation, the real-time residual glue area is judged based on the minimum residual glue area to determine whether to continue cleaning the dispensing needle. That is, the glue removal operation continues for the dispensing needle that is not cleaned, thereby ensuring the glue dispensing quality and meeting the operation requirements of the automated production line.

[0059] Please continue reading. Figure 2 As shown, it is a three-dimensional top view of the adaptive glue removal device for the dispensing needle according to an embodiment of the present invention, including a flipping shaft 201, a guide plate 202, a cloth strip 203 for inputting the pre-glue wiping area, and a cloth strip 204 for inputting the post-glue wiping area, wherein,

[0060] Specifically, the flipping shaft 201 can change the orientation of either of the adhesive-coated surfaces of the fabric strip. It is used to flip the fabric strip with the adhesive-coated surface facing up, which is input from the rear adhesive-coated area 309, so that the input fabric strip is output to the front adhesive-coated area 308 with the other adhesive-coated surface facing up. The output end and input end of the fabric strip of the flipping shaft 201 are on the same side of the flipping shaft 201.

[0061] By setting a flipping shaft 201 to flip the fabric strip, since the length of the flipping shaft 201 is greater than the width of the fabric strip, the fabric strip is wound half a turn around the flipping shaft 201 to guide both sides of the fabric strip to the glue-wiping mechanism, so that both sides of the fabric strip can contact the needle and perform the glue-wiping operation. By setting a guide plate 202 between the fabric strips guided by the flipping shaft 201, the fabric strips are prevented from tangling, so that the fabric strips input to the flipping shaft 201 and output to the flipping shaft 201 are transmitted to the glue-wiping mechanism on different planes, ensuring the effective glue-wiping operation of double-sided fabric strips.

[0062] Specifically, the adhesive application mechanism further includes a first support shaft 301, a second support shaft 302, and a third support shaft 303. The first support shaft 301, the second support shaft 302, and the third support shaft 303 are parallel to each other and all perpendicular to the same plane. On this plane, the third support shaft 303 is positioned below the first support shaft 301 and the second support shaft 302, allowing the fabric strip to enter from the upper side of the first support shaft 301, pass around the lower side of the third support shaft 303, and then exit from the upper side of the second support shaft 302, forming a bent fabric strip of the front adhesive application area 308 or the rear adhesive application area 309. The length of any of the support shafts is greater than or equal to twice the width of the fabric strip.

[0063] By setting the first support shaft 301, the second support shaft 302, and the third support shaft 303, the cloth strip is supported in a V-shaped structure, which ensures both the smooth transmission of the cloth strip and sufficient contact area between the cloth strip and the needle, thereby ensuring the effective application of adhesive. The length of the support shaft is greater than or equal to the width of two cloth strips, indicating that the surface of the support shaft is sufficient to accommodate the width of two cloth strips. That is, both sides of the cloth strip are wrapped around the support shaft without tangling, ensuring the stable operation of the adhesive removal device.

[0064] The fabric strip passes around the first support shaft 301, which exerts an upward supporting force on the fabric strip. It then passes around the third support shaft 303, which exerts a downward supporting force on the fabric strip. Finally, it passes around the second support shaft 302, which exerts an upward supporting force on the fabric strip. The fabric strip includes two adhesive surfaces, which are input to the first support shaft 301 with either adhesive surface facing upwards. If this upward-facing adhesive surface is used as the input surface, the first support shaft 301 contacts the adhesive surface opposite to the input surface of the fabric strip and guides the fabric strip to the third support shaft 303. The third support shaft 303 contacts the input surface of the fabric strip and guides the fabric strip to the second support shaft 302. The second support shaft 302 contacts the adhesive surface opposite to the input surface and outputs the fabric strip to the transmission mechanism.

[0065] Please continue reading. Figure 3 As shown, this is a three-dimensional rear view of the adaptive glue-removing device for the dispensing needle according to an embodiment of the present invention, including a finger cylinder 305, two output clamps 306, a glue-wiping block 307, a motor 103, and a solenoid valve 304, wherein...

[0066] Specifically, the adhesive wiping mechanism further includes a solenoid valve 304 and adhesive wiping blocks 307 disposed on the two output clamping plates 306 of the finger cylinder 305. The solenoid valve 304 is disposed at the lower end of the finger cylinder 305 and is used to drive the two output clamping plates 306 of the finger cylinder 305 to move towards each other, thereby driving the two adhesive wiping blocks 307 on the two output clamping plates 306 to move towards each other. The rear ends of the two adhesive wiping blocks 307 contact and clamp the bent cloth strip at the rear adhesive wiping area 309 to clean the rear adhesive wiping area 309, or the front ends of the two adhesive wiping blocks 307 contact and clamp the bent cloth strip at the front adhesive wiping area 308 to clean the front adhesive wiping area 308.

[0067] Specifically, the transmission mechanism also includes a motor, which is located at the rear end of the receiving tray 101 to drive the receiving tray 101 to rotate and collect the double-sided cloth strips 4 with residual adhesive. The feeding tray 102 is connected to the receiving tray 101 through the cloth strips. The feeding tray 102 sends out the wound cloth strips by rotating, so as to convey the cloth strips without residual adhesive to the adhesive wiping area for adhesive wiping.

[0068] By setting up a motor, the motor drives the receiving tray 101 to rotate clockwise, which winds up and collects the cloth strips with residual adhesive. Then, by moving the cloth strips, the cloth strips in the adhesive wiping area are replaced, that is, the cloth strips with residual adhesive in the adhesive wiping area are moved out of the adhesive wiping area, and the clean cloth strips are moved to the adhesive wiping area.

[0069] Specifically, the control mechanism is equipped with a minimum residual adhesive area. The control mechanism can obtain the real-time adhesive area of ​​the dispensing needle to be cleaned by acquiring real-time needle images, and determine the real-time adhesive area of ​​the dispensing needle to be cleaned based on the minimum residual adhesive area.

[0070] If the real-time adhesive area is greater than or equal to the minimum residual adhesive area, the control mechanism will collect the cloth strip images of the front adhesive wiping area 308 and the rear adhesive wiping area 309 through the clamping and monitoring mechanism to select the current adhesive wiping area 308 of the dispensing needle to be cleaned.

[0071] If the real-time adhesive area is less than the minimum residual adhesive area, the control mechanism determines that it is not necessary to wipe the adhesive from the dispensing needle to be cleaned, and the clamping and monitoring mechanism moves the clamped dispensing needle to the work area to perform the dispensing operation.

[0072] The minimum residual adhesive area represents the set area of ​​adhesive, and the set value should be close to zero;

[0073] By setting a minimum residual adhesive area, the control mechanism compares the minimum residual adhesive area with the real-time adhesive area. If the control mechanism determines that the real-time adhesive area is greater than or equal to the minimum residual adhesive area, it means that there is a lot of adhesive at the dispensing needle to be cleaned, and cleaning is required. If the control mechanism determines that the real-time adhesive area is less than the minimum residual adhesive area, it means that there is almost no adhesive at the dispensing needle to be cleaned, and cleaning is not required.

[0074] Specifically, the control mechanism is equipped with a preset transmission displacement. When the control mechanism determines that the real-time adhesive area is greater than or equal to the minimum residual adhesive area and selects the current adhesive wiping area 308 of the dispensing needle to be cleaned, the clamping and monitoring mechanism acquires images of the fabric strips in the front adhesive wiping area 308 and the rear adhesive wiping area 309. The control mechanism then determines the residual adhesive status of the fabric strips in the front adhesive wiping area 308 and the rear adhesive wiping area 309.

[0075] If there is residual glue on the cloth strips in both the front glue-wiping area 308 and the rear glue-wiping area 309, the control mechanism controls the motor to drive the receiving tray 101 to rotate so that the cloth strip is transmitted to a preset transmission displacement. The control mechanism selects the front glue-wiping area 308 or the rear glue-wiping area 309 as the current glue-wiping area 308, and controls the clamping and monitoring mechanism to move to the current glue-wiping area 308 to wipe the glue from the dispensing needle to be cleaned.

[0076] If there is no residual adhesive on the cloth strips in both the front adhesive application area 308 and the rear adhesive application area 309, the control mechanism selects either the front adhesive application area 308 or the rear adhesive application area 309 as the current adhesive application area 308, and controls the clamping and monitoring mechanism to move to the current adhesive application area 308 to apply adhesive to the dispensing needle to be cleaned.

[0077] If there is no residual adhesive on the cloth strip in either the front adhesive application area 308 or the rear adhesive application area 309, the control mechanism selects the adhesive application area where the cloth strip without residual adhesive is located as the current adhesive application area 308, and controls the clamping and monitoring mechanism to move to the current adhesive application area 308 to apply adhesive to the dispensing needle to be cleaned.

[0078] The preset transmission displacement is the set transmission displacement of the cloth strip. The motor drives the cleanroom cloth strip to move, causing the cleanroom cloth strip with residual glue to roll up. The setting should be set according to the model of the glue-wiping device and can be equal to the length value of the cloth strip in any glue-wiping area. The clamping and monitoring mechanism collects the cloth strip images of the front glue-wiping area 308 and the rear glue-wiping area 309. The control mechanism judges the residual glue status of the cloth strips in the front glue-wiping area 308 and the rear glue-wiping area 309, and selects the glue-wiping area where there is no residual glue in the cloth strip to perform the glue-wiping operation on the glue-dispensing needle to be cleaned. The system has a high degree of intelligence and ensures effective glue wiping.

[0079] Specifically, the control mechanism is equipped with a standard clamping pressure. When the control mechanism moves the clamping monitoring mechanism to the current adhesive application area 308 to apply adhesive to the needle to be cleaned, it moves the two output clamping plates 306 of the finger cylinder 305 towards each other, clamping the cloth strip in the current adhesive application area 308 to the needle to be cleaned. The clamping monitoring mechanism controls the needle to be cleaned to rotate and moves it to the upper side of the current adhesive application area 308. When the needle to be cleaned rotates and moves, the control mechanism obtains the real-time clamping pressure of the adhesive application block 307 through the pressure sensor on the finger cylinder 305, and determines the real-time clamping pressure according to the standard clamping pressure.

[0080] If the real-time clamping pressure is less than the standard clamping pressure, the control mechanism continues to control the two output clamping plates 306 of the finger cylinder 305 to move towards each other until it is determined that the real-time clamping pressure is greater than or equal to the standard clamping pressure, and then controls the two output clamping plates 306 of the finger cylinder 305 to stop moving towards each other.

[0081] If the real-time clamping pressure is greater than or equal to the standard clamping pressure, the control mechanism controls the two output clamping plates 306 of the finger cylinder 305 to stop moving towards each other.

[0082] The control mechanism stops adjusting the finger cylinder 305 and resets it when the dispensing needle to be cleaned moves out of the current dispensing area 308. The control mechanism records one dispensing operation of the dispensing needle to be cleaned as completed. The number of dispensing operations can be accumulated.

[0083] A reset is defined as the control mechanism determining that a cleaning operation has been completed on the dispensing needle and the finger cylinder 305 has returned to its initial position.

[0084] In this embodiment, the adhesive wiping block 307 is also provided with bundles of silicone protrusions arranged at equal intervals, which increases the contact area between the cloth strip and the adhesive dispensing needle to be cleaned, thereby increasing the adhesive wiping effect.

[0085] The standard clamping pressure represents the set pressure between the fabric strip and the adhesive dispensing needle to be cleaned. It is related to the tension of the fabric strip and the material of the adhesive wiping block 307. Since the adhesive dispensing needle is conical, during its rotation, if the external force remains constant, the real-time pressure exerted by the adhesive wiping block 307 on the fabric strip and the needle will vary. By setting the standard clamping pressure, the pressure exerted by the adhesive wiping block 307 on the fabric strip and the adhesive dispensing needle to be cleaned can be controlled in real time, ensuring that during the rotation of the needle, the pressure is not excessively high due to the fabric strip tension. Excessive force on the cloth strip can damage the contact area between the dispensing needle and the cloth strip. Conversely, insufficient force on the cloth strip can loosen the engagement between the cloth strip and the dispensing needle, resulting in a smaller contact area with adhesive and thus less friction, reducing the adhesive removal effect. The clamping and monitoring mechanism controls the rotation speed of the dispensing needle to be cleaned. The speed at which the dispensing needle moves to the upper side of the current adhesive removal area 308 is a parameter set by the adhesive removal device itself, which is related to the model of the adhesive removal device and the dispensing needle to be cleaned, as well as the tension of the cloth strip.

[0086] Specifically, the control mechanism can acquire a real-time image of the dispensing needle to be cleaned via the clamping and monitoring mechanism when the dispensing needle to be cleaned completes one cleaning cycle. The control mechanism obtains the real-time residual adhesive area of ​​the dispensing needle to be cleaned and determines the real-time residual adhesive area based on the lowest residual adhesive area.

[0087] If the real-time residual adhesive area is less than or equal to the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has been completed, and the clamping and monitoring mechanism moves the clamped dispensing needle to be cleaned to the work area to perform the dispensing operation.

[0088] If the real-time residual adhesive area is greater than the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has not been completed. The control mechanism will determine the cumulative number of adhesive wiping operations of the current dispensing needle to be cleaned in order to determine whether to perform the adhesive wiping operation on the current dispensing needle to be cleaned.

[0089] When the dispensing needle to be cleaned completes one cleaning cycle, the control mechanism captures real-time images of the needle and determines the real-time residual adhesive area. The cleaning effect is automatically assessed. If the control mechanism determines that the real-time residual adhesive area is less than or equal to the minimum residual adhesive area, the cleaning effect is good, and no further cleaning is needed. If the control mechanism determines that the real-time residual adhesive area is greater than the minimum residual adhesive area, it means that adhesive still exists on the needle and the cleaning operation needs to be performed again. This ensures that the cleanliness of the dispensing needle meets the requirements of the automated production line, thereby guaranteeing the dispensing quality.

[0090] Specifically, the control mechanism is configured with a set number of repeated adhesive application cycles. When the control mechanism determines that the real-time residual adhesive area after the dispensing needle to be cleaned completes one application is greater than the minimum residual adhesive area, it will acquire the current cumulative number of adhesive application cycles for the dispensing needle to be cleaned, and determine the cumulative number of adhesive application cycles based on the set number of repeated adhesive application cycles.

[0091] If the cumulative number of adhesive wiping operations is less than the number of repeated adhesive wiping operations, the control mechanism repeats the above-mentioned process based on the cloth strip images of the front adhesive wiping area 308 and the rear adhesive wiping area 309 collected by the clamping and monitoring mechanism, selects the current adhesive wiping area 308 of the adhesive dispensing needle to be cleaned, and controls the clamping and monitoring mechanism to move to the current adhesive wiping area 308 to perform the adhesive wiping operation on the adhesive dispensing needle to be cleaned.

[0092] If the cumulative number of adhesive wiping operations is greater than or equal to the number of repeated adhesive wiping operations, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has been completed, and marks the dispensing needle to be cleaned.

[0093] By setting the number of repeated wiping cycles within the control mechanism, the number of times the adhesive cleaning device wipes the current dispensing needle is limited, preventing the control mechanism's judgment from being affected by the dispensing needle itself being ineffective. By marking the dispensing needle currently to be cleaned, the effective operation of the adaptive adhesive cleaning device is ensured.

[0094] In this embodiment, the adhesive wiping mechanism of the adaptive adhesive cleaning device of the dispensing needle can be replaced by the left gear 501, right gear 502, lower gear 503, take-up tray motor 504, adhesive wiping motor 505, and adhesive wiping crankshaft 6, so that the adhesive cleaning device can also perform adhesive wiping function without an air source. Please continue reading. Figure 4 and Figure 5 As shown, Figure 4 This is a three-dimensional front view of the replaceable adhesive wiping mechanism of the adaptive adhesive removal device for the dispensing needle according to an embodiment of the present invention. Figure 5 This is a three-dimensional rear view of the replaceable adhesive wiping mechanism of the adaptive adhesive removal device for the dispensing needle according to an embodiment of the present invention, wherein...

[0095] Specifically, the glue-applying motor 505 drives the lower gear 503 to rotate, thereby causing the lower gear 503 to mesh with the left gear 501 and the left gear 501 to mesh with the right gear 502 in opposite directions. The left gear 501 and the right gear 502 have the same number of teeth and module, and the same rotation speed. The left gear 501 and the right gear 502 have an odd number of teeth, which allows the two glue-applying crankshafts 6 to rotate symmetrically. The glue-applying motor 505 rotates only 180° each time, and the two glue-applying crankshafts 6 act only on the same glue-applying port, so that only one glue-applying port can be used at a time. The glue-applying part of the glue-applying crankshaft 6 is made of elastic material, which can be rubber or silicone to accommodate different sizes of needles and prevent the needle from getting stuck on the glue-applying crankshaft.

[0096] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An adaptive glue removal device for a dispensing needle, characterized in that, include, The transmission mechanism includes a take-up tray and a feed tray. A strip of cloth is wound around the end face of the feed tray. One end of the strip of cloth is connected to the take-up tray. The take-up tray can rotate to wind and retract the strip of cloth, and drive the strip of cloth to move so that the feed tray rotates to feed the strip of cloth out. A flipping mechanism is used to flip and guide the strips of cloth between the receiving tray and the feeding tray. It includes a flipping shaft and a guide plate. The flipping shaft is used to flip the strips of cloth in the rear gluing area and guide them to the front gluing area. The guide plate is disposed between the strips of cloth in the rear gluing area and the strips of cloth in the front gluing area to separate the strips of cloth in the rear gluing area and the strips of cloth in the front gluing area. The adhesive application mechanism includes a front adhesive application area and a rear adhesive application area. The front adhesive application area supports the fabric strip through several support shafts, causing the fabric strip to bend to one side. The rear adhesive application area supports the fabric strip through several support shafts, causing the fabric strip to bend to the other side. The adhesive application mechanism also includes a finger cylinder for squeezing the bent part of the fabric strip in the front or rear adhesive application area, so that the fabric strip contacts the adhesive needle to be cleaned for adhesive application. The finger cylinder is equipped with a pressure sensor. The clamping and monitoring mechanism is used to clamp and move the dispensing needle to be cleaned to the corresponding position of the wiping mechanism. The clamping and monitoring mechanism can also drive the clamped dispensing needle to be cleaned to rotate. An industrial camera component is provided on one side of the clamping and monitoring mechanism to collect real-time needle images of the dispensing needle to be cleaned and cloth strip images of the front and rear wiping areas. A control mechanism is connected to the adhesive wiping mechanism, the transmission mechanism, and the clamping and monitoring mechanism, respectively. The control mechanism can obtain the real-time adhesive area and the real-time residual adhesive area of ​​the dispensing needle to be cleaned based on the real-time needle image collected by the clamping and monitoring mechanism. It determines whether to wipe the needle to be cleaned based on the lowest residual adhesive area. After determining that one wiping operation has been completed on the needle, it determines whether to continue wiping the needle based on the lowest residual adhesive area. The control mechanism can also select the current wiping area of ​​the needle to be cleaned based on the cloth strip images of the front and rear wiping areas collected by the clamping and monitoring mechanism. The control mechanism is equipped with a preset transmission displacement. When the control mechanism determines that the real-time adhesive area is greater than or equal to the minimum residual adhesive area and selects the current adhesive wiping area of ​​the dispensing needle to be cleaned, the clamping and monitoring mechanism acquires images of the fabric strips in the front and rear adhesive wiping areas. The control mechanism then determines the residual adhesive status of the fabric strips in the front and rear adhesive wiping areas. If there is residual glue on the cloth strip in both the front and rear glue-wiping areas, the control mechanism controls the motor to drive the receiving tray to rotate so that the cloth strip is transmitted to a preset transmission displacement. The control mechanism selects the front or rear glue-wiping area as the current glue-wiping area and controls the clamping and monitoring mechanism to move to the current glue-wiping area to wipe the glue on the dispensing needle to be cleaned. If there is no residual adhesive on the cloth strips in both the front and rear adhesive application areas, the control mechanism selects either the front or rear adhesive application area as the current adhesive application area and controls the clamping and monitoring mechanism to move to the current adhesive application area to apply adhesive to the dispensing needle to be cleaned. If there is no residual adhesive on the cloth strip in either the front or rear adhesive application area, the control mechanism selects the adhesive application area containing the cloth strip without residual adhesive as the current adhesive application area, and controls the clamping and monitoring mechanism to move to the current adhesive application area to apply adhesive to the dispensing needle to be cleaned.

2. The adaptive glue-removing device for the dispensing needle according to claim 1, characterized in that, The flipping shaft can change the orientation of either of the adhesive-coated surfaces of the fabric strip. It is used to flip the fabric strip with the adhesive-coated surface facing up, which is input from the rear adhesive-coated area, so that the input fabric strip is output to the front adhesive-coated area with the other adhesive-coated surface facing up. The fabric strip output end and input end of the flipping shaft are on the same side of the flipping shaft.

3. The adaptive glue removal device for the dispensing needle according to claim 1, characterized in that, The adhesive application mechanism further includes a first support shaft, a second support shaft, and a third support shaft. The first support shaft, the second support shaft, and the third support shaft are parallel to each other and are all perpendicular to the same plane. On this plane, the third support shaft is located below the first support shaft and the second support shaft, so that the fabric strip enters from the upper side of the first support shaft, passes around the lower side of the third support shaft, and then exits from the upper side of the second support shaft, forming a bent fabric strip of the front adhesive application area or the rear adhesive application area. The length of any of the support shafts is greater than or equal to twice the width of the fabric strip.

4. The adaptive glue-removing device for the dispensing needle according to claim 3, characterized in that, The adhesive wiping mechanism also includes a solenoid valve and adhesive wiping blocks disposed on the two output clamps of the finger cylinder. The solenoid valve is disposed at the lower end of the finger cylinder and is used to drive the two output clamps of the finger cylinder to move towards each other, thereby causing the two adhesive wiping blocks on the two output clamps to move towards each other. The rear ends of the two adhesive wiping blocks contact and clamp the bent cloth strip at the rear adhesive wiping area to clean the rear adhesive wiping area, or the front ends of the two adhesive wiping blocks contact and clamp the bent cloth strip at the front adhesive wiping area to clean the front adhesive wiping area.

5. The adaptive glue-removing device for the dispensing needle according to claim 1, characterized in that, The transmission mechanism also includes a motor, which is located at the rear end of the receiving tray to drive the receiving tray to rotate and collect the cloth strips with residual adhesive on both sides. The feeding tray is connected to the receiving tray through the cloth strips. The feeding tray rotates to send out the wound cloth strips to convey cloth strips without residual adhesive to the adhesive wiping area for adhesive wiping.

6. The adaptive glue-removing device for the dispensing needle according to claim 1, characterized in that, The control mechanism is equipped with a minimum residual adhesive area. The control mechanism can obtain the real-time adhesive area of ​​the dispensing needle to be cleaned by acquiring real-time needle images, and determine the real-time adhesive area of ​​the dispensing needle to be cleaned based on the minimum residual adhesive area. If the real-time adhesive area is greater than or equal to the minimum residual adhesive area, the control mechanism will collect images of the cloth strips in the front and rear adhesive wiping areas through the clamping and monitoring mechanism to select the current adhesive wiping area of ​​the dispensing needle to be cleaned. If the real-time adhesive area is less than the minimum residual adhesive area, the control mechanism determines that it is not necessary to wipe the adhesive from the dispensing needle to be cleaned, and the clamping and monitoring mechanism moves the clamped dispensing needle to the work area to perform the dispensing operation.

7. The adaptive glue removal device for the dispensing needle according to claim 6, characterized in that, The adhesive application mechanism also includes a solenoid valve and an adhesive application block mounted on the two output clamping plates of the finger cylinder. The control mechanism is equipped with a standard clamping pressure. When the control mechanism moves the clamping and monitoring mechanism to the current adhesive application area to apply adhesive to the needle to be cleaned, it controls the two output clamping plates of the finger cylinder to move towards each other, clamping the cloth strip in the current adhesive application area to the needle to be cleaned. The clamping and monitoring mechanism controls the needle to be cleaned to rotate and move it to the upper side of the current adhesive application area. While the needle to be cleaned rotates and moves, the control mechanism obtains the real-time clamping pressure of the adhesive application block through a pressure sensor mounted on the finger cylinder and determines the real-time clamping pressure based on the standard clamping pressure. If the real-time clamping pressure is less than the standard clamping pressure, the control mechanism continues to control the two output clamping plates of the finger cylinder to move towards each other until it is determined that the real-time clamping pressure is greater than or equal to the standard clamping pressure, at which point the control mechanism stops the two output clamping plates of the finger cylinder from moving towards each other. If the real-time clamping pressure is greater than or equal to the standard clamping pressure, the control mechanism controls the two output clamping plates of the finger cylinder to stop moving towards each other; The control mechanism stops adjusting the finger cylinder and resets it once the dispensing needle to be cleaned moves out of the current dispensing area. The control mechanism records one dispensing operation of the dispensing needle to be cleaned as completed. The number of dispensing operations can be accumulated.

8. The adaptive glue-removing device for the dispensing needle according to claim 7, characterized in that, The control mechanism can acquire real-time images of the dispensing needle to be cleaned via the clamping and monitoring mechanism when the needle completes one cleaning cycle. The control mechanism obtains the real-time residual adhesive area of ​​the dispensing needle to be cleaned and determines the real-time residual adhesive area based on the lowest residual adhesive area. If the real-time residual adhesive area is less than or equal to the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has been completed, and the clamping and monitoring mechanism moves the clamped dispensing needle to be cleaned to the work area to perform the dispensing operation. If the real-time residual adhesive area is greater than the minimum residual adhesive area, the control mechanism determines that the adhesive wiping operation of the dispensing needle to be cleaned has not been completed. The control mechanism will determine the cumulative number of adhesive wiping operations of the current dispensing needle to be cleaned in order to determine whether to perform the adhesive wiping operation on the current dispensing needle to be cleaned.

9. The adaptive glue-removing device for the dispensing needle according to claim 8, characterized in that, The control mechanism is configured with a set number of repeated adhesive application cycles. When the control mechanism determines that the real-time residual adhesive area after one application of adhesive to the dispensing needle is greater than the minimum residual adhesive area, it will acquire the current cumulative number of adhesive application cycles for the dispensing needle and determine the cumulative number of cycles based on the set number of repeated adhesive application cycles. If the cumulative number of adhesive wiping operations is less than the number of repeated adhesive wiping operations, the control mechanism repeats the above process: based on the cloth strip images of the front and rear adhesive wiping areas collected by the clamping and monitoring mechanism, selects the current adhesive wiping area of ​​the dispensing needle to be cleaned, and controls the clamping and monitoring mechanism to move to the current adhesive wiping area to perform the adhesive wiping operation on the dispensing needle to be cleaned. If the cumulative number of adhesive application operations is greater than or equal to the number of repeated adhesive application operations, the control mechanism determines that the adhesive application operation of the dispensing needle to be cleaned has been completed and marks the dispensing needle to be cleaned.

Images