Cleaning mechanism for circuit board core positioning and glue injection and core positioning and glue injection device

Abstract

The application discloses a cleaning mechanism for circuit board core positioning glue injection, and discloses a circuit board core positioning glue injection device with the same. The cleaning mechanism comprises a sliding seat, a glue wiping assembly, a cloth wiping assembly and a surface changing assembly. The sliding seat can drive the glue wiping assembly to reciprocally slide along a first horizontal direction. The glue wiping assembly comprises a cleaning cloth and two take-up and pay-off reels. The cleaning cloth can be reciprocally conveyed along a second horizontal direction. The cloth wiping assembly comprises an abutting head. The cleaning cloth is arranged on the upper end face of the abutting head along the second horizontal direction. The cleaning cloth is used for wiping and cleaning a glue injection head. Through the reciprocally sliding of the sliding seat along the first horizontal direction and the reciprocally conveying of the cleaning cloth along the second horizontal direction, the cleaning cloth can be simultaneously moved along two mutually perpendicular horizontal directions, the manual wiping action can be simulated, the cleaning effect of the glue injection head can be improved, and the utilization rate of the cleaning cloth can be improved. The front and back surfaces of the cleaning cloth can be utilized through the surface changing of the surface changing assembly, and the utilization rate of the cleaning cloth can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board manufacturing equipment, in particular to a cleaning mechanism for circuit board core positioning glue injection and a circuit board core positioning glue injection device. BACKGROUND

[0002] Glue injection, also known as glue dispensing, glue coating, glue filling, glue dripping, etc., in industry applications, all machines and equipment used for glue filling can be collectively referred to as glue injection equipment. Glue injection equipment is widely used, such as in the production and manufacturing field of circuit boards, especially in the circuit board glue injection process. The circuit board core positioning glue injection machine required in this process can be used to strengthen the electrical insulation of the circuit board and prevent electric leakage by accurately injecting glue to the circuit board. In sensitive circuit protection, filling glue can also form a long-term effective protective barrier to improve the durability of the circuit board product.

[0003] In the circuit board core positioning glue injection process, the circuit board core positioning glue injection machine usually includes a circuit board transfer mechanism (feeding and discharging mechanism), a mechanical truss, and a glue injection mechanism on the mechanical truss. The glue injection head on the glue injection mechanism is precisely positioned in the glue injection area through visual guidance and coordinate calibration, and cooperates with the mechanical truss. In the glue injection stage, relying on a precise glue supply system and multi-axis linkage control, stable output of glue amount, speed and path is achieved, while trajectory is dynamically corrected and glue flow form is adjusted. At the end, through glue breaking control, it is realized to separate, and finally millimeter-level positioning accuracy and microliter-level glue amount control are achieved. After the glue injection mechanism completes one or more glue injection operations, some glue may remain at the glue outlet of the glue injection head. After the remaining glue solidifies, it may cause uncontrollable glue output, uneven glue injection, and air bubbles and other defects. Therefore, a cleaning mechanism is usually used to clean the remaining glue on the glue injection head.

[0004] In the prior art, the cleaning mechanism usually uses unwinding and winding wiping cloth to clean the glue injection head. When the wiping cloth is unwound and wound, the wiping cloth moves relative to the glue injection head to achieve the purpose of wiping the glue injection head. However, in this cleaning method, the glue injection head cannot better utilize the effective wiping surface of the wiping cloth, which not only wastes resources, but also requires frequent replacement of the wiping cloth, thereby affecting the efficiency of the circuit board core positioning glue injection. SUMMARY

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a cleaning mechanism for circuit board core positioning glue injection, which can clean the glue injection head of the glue injection mechanism while effectively utilizing the cleaning surface of the cleaning cloth, thereby improving the glue injection production efficiency.

[0006] The present application also provides a circuit board core positioning glue injection device having the above-mentioned cleaning mechanism for circuit board core positioning glue injection.

[0007] According to the cleaning mechanism for positioning and injecting glue of the embedded core of the circuit board according to the first aspect of the present application, the injection head of the glue injection mechanism is cleaned. The cleaning mechanism is arranged on the workbench of the positioning and injecting glue device of the embedded core of the circuit board. The workbench has a first horizontal direction and a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction. The cleaning mechanism comprises:

[0008] A sliding seat is arranged on the workbench. The sliding seat can reciprocally slide on the workbench along the first horizontal direction.

[0009] A glue wiping assembly is arranged on the sliding seat. The sliding seat can drive the glue wiping assembly to reciprocally slide along the first horizontal direction. The glue wiping assembly comprises a cleaning cloth and two take-up and pay-off reels. The two ends of the cleaning cloth are respectively taken up and paid off in the two take-up and pay-off reels. The cleaning cloth can be conveyed along the second horizontal direction.

[0010] A wiping cloth assembly is arranged on the workbench. The wiping cloth assembly is located between the glue wiping assemblies. The wiping cloth assembly comprises a liftable abutting head. The cleaning cloth is located on the upper end surface of the abutting head. The injection head can be downwardly pressed on the cleaning cloth and press the cleaning cloth downwardly to abut on the abutting head. The cleaning cloth is used to wipe and clean the injection head. The abutting head is used to wipe the lower side surface of the cleaning cloth.

[0011] Two surface changing assemblies are respectively arranged between the take-up and pay-off reels and the abutting head. The cleaning cloth is arranged in the surface changing assemblies. The surface changing assemblies are used to change the surface of the cleaning cloth.

[0012] The cleaning mechanism for core positioning and glue injection of the first aspect embodiment of the present application has at least the following beneficial effects: by setting the sliding seat to reciprocate along the first horizontal direction on the workbench, and the glue wiping assembly to reciprocate the cleaning cloth along the second horizontal direction, the cleaning cloth is moved in two mutually perpendicular horizontal directions at the same time. This movement mode can accurately simulate the action of manual wiping, greatly improving the cleaning effect of the glue outlet of the glue injection head. Compared with the traditional single direction cleaning method, the residual glue at the glue outlet of the glue injection head can be completely cleaned without dead angles, effectively avoiding problems such as out-of-control glue output, uneven glue injection, and bubble defects caused by solidified residual glue. At the same time, since the cleaning cloth can move flexibly in two directions, the contact area and wiping range of the cleaning cloth and the glue injection head are increased, the utilization rate of the cleaning cloth is improved, and the waste of the cleaning cloth is reduced. In addition, the glue injection head can be pressed downward on the cleaning cloth and press the cleaning cloth downward to abut against the abutting head, so that when the cleaning cloth slides on the end surface of the abutting head, the lower surface of the cleaning cloth is wiped by the end surface of the abutting head, thereby facilitating the wiping of the residual glue on the cleaning cloth, improving the cleaning effect of the cleaning cloth, and cooperating with the surface changing assembly to change the surface, the front and back sides of the cleaning cloth can be used for wiping and cleaning the glue injection head, which can further improve the utilization rate of the cleaning cloth. In cooperation with the abutting head, the cleaning cloth can also be recycled, reducing production costs.

[0013] According to some embodiments of the present application, the abutting head comprises a mounting block and a top block, the top block is movably mounted in the mounting block through an elastic member, and the cleaning cloth is arranged on the upper end surface of the top block.

[0014] According to some embodiments of the present application, the mounting block is provided with a receiving cavity, the top block is movably received in the receiving cavity through the elastic member, and the upper end surface of the top block is provided with a detachable cleaning layer.

[0015] According to some embodiments of the present application, the cleaning platform is arranged on the workbench, two abutting heads are independently slidably arranged on the cleaning platform, the two abutting heads are spaced apart along the first horizontal direction, and the distance between the two abutting heads is adjustable.

[0016] According to some embodiments of the present application, the glue wiping assembly further comprises two containing containers, the two containing containers are arranged on the sliding seat, the two containing containers are respectively used for containing the two take-up and pay-off reels, the containing container has an inlet and an outlet, the cleaning cloth can be arranged on the inlet and the outlet, and the containing container stores cleaning liquid.

[0017] According to some embodiments of the present application, a liquid scraping portion is arranged on the upper side of the inlet and outlet, and the end of the liquid scraping portion is abutted against the cleaning cloth.

[0018] According to some embodiments of the present application, the liquid scraping portion is slidingly arranged in the housing of the containing container, the inner end of the liquid scraping portion is connected with the inside of the housing of the containing container through a pre-tightening member, and the outer end of the liquid scraping portion can be abutted against the cleaning cloth.

[0019] According to some embodiments of the present application, a liquid guiding portion is arranged on the lower side of the inlet and outlet, the liquid guiding portion can be smoothly connected with the housing of the containing container, the extending direction of the liquid guiding portion extends along the inside of the containing container, and the liquid guiding portion is arranged in a circular arc shape.

[0020] According to some embodiments of the present application, the inside of the containing container is provided with a conveying roller, at least part of the structure of the conveying roller is immersed in the cleaning liquid, and the cleaning cloth is arranged around the conveying roller.

[0021] The circuit board core positioning and glue injection device according to the second aspect of the present application comprises a glue injection mechanism and the cleaning mechanism for circuit board core positioning and glue injection according to the first aspect of the present application, the glue injection mechanism is located above the workbench, the glue injection mechanism comprises a glue injection head, and the cleaning mechanism is configured to clean the glue injection head.

[0022] The circuit board core positioning and glue injection device has all the beneficial effects of the cleaning mechanism for circuit board core positioning and glue injection, which will not be repeated here.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below in combination with the drawings and embodiments, in which:

[0025] Figure 1 FIG. 1 is a structural schematic diagram of a cleaning mechanism for circuit board core positioning and glue injection according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is a front view of the cleaning mechanism for circuit board core positioning and glue injection shown in FIG. 1; Figure 1 FIG. 3 is a front view of the cleaning mechanism for circuit board core positioning and glue injection shown in FIG. 1;

[0027] Figure 3 FIG. 4 is a half-section schematic diagram of an abutting head of the cleaning mechanism for circuit board core positioning and glue injection shown in FIG. 1; Figure 2 FIG. 5 is a half-section schematic diagram of the abutting head of the cleaning mechanism for circuit board core positioning and glue injection shown in FIG. 1;

[0028] Figure 4 FIG. 6 is a half-section schematic diagram of the abutting head of the cleaning mechanism for circuit board core positioning and glue injection shown in FIG. 1.Figure 2 An internal structure diagram of a containing container of a circuit board core positioning and glue injection cleaning mechanism.

[0029] Reference signs:

[0030] Workbench 1; cleaning mechanism 2;

[0031] Sliding seat 10;

[0032] Rubbing glue assembly 20; cleaning cloth 21; take-up reel 22; take-up roller 221; containing container 23; inlet and outlet 231; liquid scraping part 232; pre-tightening part 2321; flow guiding part 233; conveying roller 234;

[0033] Wiping cloth assembly 30; abutting head 31; mounting block 311; accommodating cavity 3111; abutting block 312; elastic part 313; cleaning platform 32. DETAILED DESCRIPTION

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In the description of the present application, if the first, second, etc. are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0037] Reference Figures 1 to 2According to the cleaning mechanism 2 of the first aspect of the present application, the cleaning mechanism 2 is arranged on the worktable 1 of the core positioning and glue injection device and is used for cleaning the glue injection head of the glue injection mechanism. The cleaning mechanism 2 is arranged on the worktable 1 of the core positioning and glue injection device. The worktable 1 has a first horizontal direction (e.g., the front-rear direction in the figure) and a second horizontal direction (e.g., the left-right direction in the figure). The first horizontal direction is perpendicular to the second horizontal direction. The cleaning mechanism 2 includes a sliding seat 10, a glue wiping assembly 20, a cloth wiping assembly 30, and two surface changing assemblies (not shown in the figure). The sliding seat 10 is arranged on the worktable 1 and can reciprocally slide on the worktable 1 along the first horizontal direction. The glue wiping assembly 20 is arranged on the sliding seat 10. The sliding seat 10 can drive the glue wiping assembly 20 to reciprocally slide along the first horizontal direction. The glue wiping assembly 20 includes a cleaning cloth 21 and two take-up reels 22. The two ends of the cleaning cloth 21 are respectively taken up in the two take-up reels 22. The cleaning cloth 21 can be reciprocally conveyed along the second horizontal direction. The cloth wiping assembly 30 is arranged on the worktable 1 and is located between the glue wiping assembly 20. The cloth wiping assembly 30 includes a liftable abutting head 31. The cleaning cloth 21 is located on the upper end surface of the abutting head 31. The glue injection head can be downwardly pressed on the cleaning cloth 21 and press the cleaning cloth 21 downwardly against the abutting head 31. The cleaning cloth 21 is used for wiping and cleaning the glue injection head. The abutting head 31 is used for wiping and cleaning the lower side surface of the cleaning cloth 21. The two surface changing assemblies are respectively arranged between the take-up reels 22 and the abutting head 31. The cleaning cloth 21 is arranged in the surface changing assemblies. The surface changing assemblies are used for turning over the cleaning cloth 21.

[0038] The cleaning mechanism 2 realizes the simultaneous movement of the cleaning cloth 21 in two mutually perpendicular horizontal directions by setting the sliding seat 10 to reciprocate along the first horizontal direction on the workbench 1, so that the rubber wiping assembly 20 arranged on the sliding seat 10 reciprocates along the first horizontal direction on the workbench 1 with the sliding seat 10, and the cleaning cloth 21 is reciprocated along the second horizontal direction by cooperating with the rubber wiping assembly 20. This movement mode can accurately simulate the action of manual wiping, greatly improving the cleaning effect of the glue outlet of the glue injection head. Compared with the traditional single direction cleaning mode, the residual glue at the glue outlet of the glue injection head can be completely cleaned without dead angle, effectively avoiding the problems of out-of-control glue output, uneven glue injection and bubble defects caused by solidified residual glue. At the same time, since the cleaning cloth 21 can move flexibly in two directions, the contact area and wiping range of the cleaning cloth 21 with the glue injection head are increased, the utilization rate of the cleaning cloth 21 is improved, and the waste of the cleaning cloth 21 is reduced. In addition, the glue injection head can be pressed downward on the cleaning cloth 21 and press the cleaning cloth 21 against the abutting head 31, so that when the cleaning cloth 21 slides on the upper end surface of the abutting head 31, the lower surface of the cleaning cloth 21 is wiped by the upper end surface of the abutting head 31, thereby facilitating the wiping of the residual glue on the cleaning cloth 21, improving the cleaning effect of the cleaning cloth 21, and cooperating with the surface changing assembly to change the surface, so that the front and back sides of the cleaning cloth 21 can be used for wiping and cleaning the glue injection head, which can further improve the utilization rate of the cleaning cloth 21. In cooperation with the abutting head 31, the cleaning cloth 21 can also be recycled, reducing production costs. The cleaning mechanism can clean the residual glue of the glue injection head in time, avoid the glue outlet from being blocked and the glue supply system from being worn due to the residual glue, prolong the service life of the equipment, and reduce the maintenance cost. Moreover, the efficiency decline problem caused by frequent shutdown for cleaning in production is reduced, the production efficiency is improved, the risk of pollution or safety accidents caused by residual glue is reduced, and the safety and stability of production are ensured.

[0039] Specifically, the cleaning mechanism 2 of the embodiment of the present application is arranged on the worktable 1 of the circuit board embedded core positioning and glue injection device. The worktable 1 has a first horizontal direction and a second horizontal direction perpendicular to each other, which provides a basic space for the movement of the cleaning mechanism. Meanwhile, the worktable 1 is also provided with a circuit board embedded core positioning and glue injection transfer mechanism and a glue injection mechanism. The main function of the circuit board embedded core positioning and glue injection transfer mechanism is to load and unload circuit board materials, and the glue injection mechanism is arranged above the worktable 1 and is used to inject glue into the circuit board on the transfer device. The cleaning mechanism 2 is used to clean the glue injection port of the glue injection head of the glue injection mechanism. The sliding seat 10 is installed on the worktable 1 and is capable of quickly reciprocating along the first horizontal direction through a linear guide rail or other transmission structure. The sliding seat 10 is provided with a glue wiping assembly 20, which includes a cleaning cloth 21 and two winding and unwinding reels 22. The cleaning cloth 21 is made of a material with good water absorption and wiping performance, such as non-woven fabric. The two winding and unwinding reels 22 are respectively located at the two ends of the sliding seat 10, and the two ends of the cleaning cloth 21 are respectively wound on the two winding and unwinding reels 22. The winding and unwinding reels 22 are driven to rotate by a motor, so that the cleaning cloth 21 can be reciprocated along the second horizontal direction. The wiping assembly 30 is arranged on the worktable 1 and is located between the glue wiping assemblies 20. The wiping assembly 30 includes a liftable abutting head 31, which can be driven to lift by a cylinder or an electric push rod (not shown in the figure). The cleaning cloth 21 is arranged on the upper end surface of the abutting head 31 along the second horizontal direction, and when the glue injection head needs to be cleaned, the abutting head 31 is lifted so that the glue injection head can abut against the cleaning cloth 21 on the abutting head 31.

[0040] After the glue injection mechanism completes one or more glue injection operations, cleaning operation is needed. First, the glue injection mechanism is driven to move above the cleaning mechanism 2, and the glue injection head of the glue injection mechanism is abutted against the cleaning cloth 21. Then, the driving device (not shown in the figure) of the sliding seat 10 is started, the sliding seat 10 drives the glue wiping assembly 20 to slide quickly along the first horizontal direction, and at the same time, the driving device (not shown in the figure) of the glue wiping assembly 20 is started, thereby driving the take-up reel 22 to rotate, and then the cleaning cloth 21 is moved along the second horizontal direction, and the clean part of the cleaning cloth 21 is slid on the upper end surface of the abutment head 31. Then, the cylinder or electric push rod of the cloth wiping assembly 30 is started, and the abutment head 31 is pushed to rise, so that the glue injection head is abutted against the cleaning cloth 21 on the abutment head 31. At this time, the sliding seat 10 continues to reciprocate along the first horizontal direction, and the glue wiping assembly 20 drives the cleaning cloth 21 to reciprocate along the second horizontal direction. This movement mode of moving in two directions at the same time simulates the action of manual wiping, and also realizes the conveying of the cleaning cloth 21, so as to ensure that the glue outlet of the glue injection head is wiped and cleaned comprehensively and carefully by the clean cleaning cloth 21. During the cleaning process, the sliding speed of the sliding seat 10, the conveying speed of the cleaning cloth 21, and the lifting height and stopping time of the abutment head 31 can be adjusted according to the contamination degree of the glue injection head. For example, when the glue injection head has more residual glue, the sliding speed of the sliding seat 10 and the conveying speed of the cleaning cloth 21 can be reduced, and the contact time of the abutment head 31 with the glue injection head can be increased, so as to ensure thorough cleaning. After cleaning is completed, the abutment head 31 is lowered, the sliding seat 10 is moved to the initial position, the glue wiping assembly 20 winds up the used cleaning cloth 21, and at the same time, the clean part of the cleaning cloth 21 is prepared for the next cleaning.

[0041] It also needs to be explained that when the cleaning mechanism 2 completes one or more cleaning operations, the cleaning cloth 21 on the upper side becomes relatively dirty after cleaning, so the surface changing assembly can be provided on both sides of the abutment head 31 (i.e. between the abutment head 31 and the take-up reel 22 on both sides) to change the surface. When the take-up reel 22 releases the cleaning cloth 21, the lower side of the cleaning cloth 21 can be turned to the upper side through the surface changing action of the surface changing assembly, and the originally upward upper side can be turned to the lower side. When the cleaning mechanism 2 continues to clean, the lower side of the cleaning cloth 21 can be used to clean the glue injection head, and the upper end surface of the abutment head can be used to wipe the residual material on the upper side of the cleaning cloth 21. It needs to be emphasized that the surface changing assembly in the embodiment can change the surface of the cleaning cloth 21 by using the existing surface changing mechanism of the film, so the structure of the surface changing assembly is not limited.

[0042] In addition, it also needs to be noted that the face changing assembly in the embodiment needs to work in cooperation with the rotation of the winding and unwinding reel to ensure that the cleaning cloth is smoothly turned over during the release process, avoiding wrinkles or deviation. At the same time, the face changing assembly should have certain adjustment function to adapt to cleaning cloths of different thicknesses or materials, to ensure the turning precision and reliability, and the adjustment function can switch the face changing time of the two face changing assemblies according to different conveying stages of the cleaning cloth 21 (one of the face changing assemblies or both face changing assemblies can be switched, which can complete the face changing of the cleaning cloth 21), that is, in actual operation, the position of the cleaning cloth 21 can be detected by a sensor, and whether the face changing is needed can be judged by a control system, and the face changing time is accurately controlled by cooperating with the control system. When the face changing of the cleaning cloth 21 is needed, the face changing assembly needs to be controlled to change the face of the cleaning cloth 21, and when the face changing is not needed, the face changing assembly is used as a simple conveying assembly. If the face changing is needed again, the face changing assembly is controlled to change the face of the cleaning cloth 21 again. Such operation can improve the overall cleaning efficiency and automation degree. That is, after the lower side of the cleaning cloth 21 completes a cleaning operation, the system can turn it back to the upper side again through the face changing assembly, realizing double-sided circulation use, which can extend the service life of a single roll of cleaning cloth while ensuring the cleaning effect. The control system automatically determines the face changing time and the cleaning parameter combination according to the preset program or real-time feedback, so that the entire cleaning process does not need manual intervention and is stably embedded in the automatic production process.

[0043] In actual circuit board core positioning and glue injection production, the cleaning mechanism of the present application can improve the cleaning condition of the glue injection head. After several glue injection operations, the residual glue at the glue outlet of the glue injection head can be timely removed, effectively avoiding problems such as out-of-control glue output, uneven glue injection and bubble defects caused by residual glue, and improving the glue injection quality of the circuit board. At the same time, due to the reduction of equipment failure, the maintenance cost is reduced, and the production efficiency is greatly improved. Moreover, the safety and stability in the production process are effectively guaranteed, and the occurrence of pollution or safety accidents caused by residual glue is reduced.

[0044] Referring to Figures 2 to 3 In some embodiments of the present application, the abutting head 31 comprises a mounting block 311 and an abutting block 312, the mounting block 311 is provided with a containing cavity 3111, the abutting block 312 is contained in the containing cavity 3111 in a liftable manner through an elastic piece 313, and the cleaning cloth 21 is arranged on the upper end face of the abutting block 312.

[0045] Specifically, in the cleaning mechanism 2 in the embodiment of the present application, the abutting head 31 is composed of a mounting block 311 and an abutting block 312. The mounting block 311 serves as the base support part of the abutting head 31, and has a receiving cavity 3111 provided inside, which provides space for the installation and lifting of the abutting block 312. The abutting block 312 is liftable and receivable in the receiving cavity 3111 of the mounting block 311 through an elastic member 313. The elastic member 313 here can be a spring or other elastic component, one end of which is fixed to the bottom of the receiving cavity 3111, and the other end is connected with the abutting block 312. In the natural state, the spring is naturally compressed by the abutting block 312, so that the abutting block 312 can realize lifting movement in the receiving cavity 3111. The cleaning cloth 21 is arranged on the upper end face of the abutting block 312. When the cleaning operation of the glue injection head is needed, first, the glue injection head of the glue injection mechanism is moved to the appropriate position of the cleaning mechanism 2, and the sliding seat 10 slides while the wiping assembly 20 drives the cleaning cloth 21 to convey along the second horizontal direction, so that the clean part of the cleaning cloth 21 is delivered to the upper end face of the abutting block 312. Then, the wiping assembly 30 is started, and since the abutting block 312 is connected with the mounting block 311 through the elastic member 313, when the glue injection head abuts on the cleaning cloth 21, the elastic member 313 will be compressed and deformed according to the pressure applied by the glue injection head. For example, if the pressure applied by the glue injection head is large, the elastic member 313 will be further compressed, so that the abutting block 312 will be lowered by a certain distance; if the pressure is small, the deformation degree of the elastic member 313 will also be small. This elastic lifting design enables the abutting block 312 to automatically adjust the height according to the actual situation of the glue injection head, so as to ensure that the cleaning cloth 21 and the glue injection head maintain appropriate contact pressure.

[0046] In the process of reciprocating sliding of the sliding seat 10 along the first horizontal direction and reciprocating conveying of the cleaning cloth 21 along the second horizontal direction by the wiping assembly 20, since the abutting block 312 can be elastically lifted, the cleaning cloth 21 can better realize overall and uniform wiping. This design further improves the cleaning effect, effectively removes the residual glue at the glue outlet of the glue injection head, avoids problems such as out-of-control glue output, uneven glue injection and bubble defects caused by residual glue, and guarantees the quality and production efficiency of the circuit board core positioning glue injection. At the same time, the design of the elastic member 313 also enables the abutting head 31 to have a certain buffering effect, reduces the hard collision between the glue injection head and the abutting head 31, and prolongs the service life of the equipment.

[0047] It should be further noted that the cleaning cloth 21 moves relative to the abutting block 312 along the first horizontal direction and the second horizontal direction. Therefore, further, the upper end surface of the abutting block 312 is provided with a plurality of arranged rolling balls (not shown in the figure) on the left and right sides, the rolling balls can roll in various directions, and the middle part of the upper end surface of the abutting block 312 is a cleaning area of the glue injection head, which can not be affected by the rolling balls on both sides. Therefore, it is conceivable that when the cleaning cloth 21 slides relative to the abutting block 312, the cleaning cloth 21 can be stably maintained below the glue injection head by contacting the rolling balls and rolling with the rolling balls, and at the same time, it is convenient for the cleaning cloth 21 to slide quickly.

[0048] Further, in some embodiments of the present application, the accommodation cavity 3111 stores cleaning liquid, the lower part of the abutting block 312 is soaked in the cleaning liquid, and the abutting block 312 can absorb the cleaning liquid and deliver it to the upper end surface of the abutting block 312. Specifically, in the cleaning mechanism 2 of the embodiment of the present application, the abutting head 31 is further optimized. The accommodation cavity 3111 provided by the mounting block 311 not only provides installation and lifting space for the abutting block 312, but also stores cleaning liquid therein. The cleaning liquid can be selected according to the type of glue used in the glue injection process, for example, for some common epoxy resin glue, an organic solvent cleaning liquid that can effectively dissolve the residual components and has no corrosion to the equipment can be selected. The abutting block 312 is accommodated in the accommodation cavity 3111 by the elastic member 313 and can be lifted, and the lower part thereof is soaked in the cleaning liquid. The abutting block 312 is usually made of a material with certain liquid absorption capacity, such as porous sponge material or specially treated fiber material. There are a large number of small pores in these materials, and when the lower part of the abutting block 312 is soaked in the cleaning liquid, the cleaning liquid will be absorbed into the pores in the abutting block 312 by capillary action. When the glue injection head cleaning operation is needed, the glue injection head of the glue injection mechanism moves to a suitable position of the cleaning mechanism 2, the sliding seat 10 slides, and the cleaning cloth 21 is conveyed along the second horizontal direction by the wiping assembly 20, so that the clean part of the cleaning cloth 21 is delivered to the upper end surface of the abutting block 312. At this time, the wiping assembly 30 is started, the glue injection head abuts on the cleaning cloth 21, and the abutting block 312 descends a certain distance in the accommodation cavity 3111 due to the compression of the elastic member 313, but because the lower part thereof is soaked in the cleaning liquid and can absorb the cleaning liquid, the absorbed cleaning liquid will be delivered to the upper end surface of the abutting block 312 during the rising and contacting with the glue injection head; and in some other embodiments, the surface of the rolling ball can also be contacted, and when the rolling ball rolls, the cleaning liquid on the surface thereof can be wiped to the cleaning cloth 21, so that the cleaning cloth 21 absorbs, thereby further improving the cleaning effect of the cleaning cloth 21.

[0049] In the process of reciprocating sliding of the sliding seat 10 along the first horizontal direction and reciprocating conveying of the cleaning cloth 21 along the second horizontal direction by the wiping assembly 20, the cleaning liquid will continuously be conveyed to the cleaning cloth 21 from the upper end face of the abutting block 312; in other embodiments, the upwardly conveyed cleaning liquid can be conveyed to the cleaning cloth 21 through the rolling of the balls on the left and right sides of the abutting block 312. These cleaning liquids can be better absorbed by the cleaning cloth 21, and thus better dissolve and remove the glue remaining at the glue outlet of the glue injection head. Compared with wiping with only dry cleaning cloth 21, the cleaning cloth 21 with cleaning liquid can more effectively soften and remove stubborn glue residues, further improving the cleaning effect. For example, for some glue residues with a long solidification time and high hardness, the cleaning liquid can soften them, so that the cleaning cloth 21 can wipe them off, thereby avoiding problems such as out-of-control glue output, uneven glue injection, and bubble defects caused by glue residues, ensuring high-quality core positioning and glue injection of the circuit board, and also reducing the problem of reduced production efficiency caused by frequent shutdown for cleaning.

[0050] Of course, it can also be understood that, in other embodiments, the mounting block 311 is provided with a containing cavity 3111, and the abutting block 312 is movably contained in the containing cavity 3111 through the elastic member 313, and the upper end face of the abutting block 312 is provided with a detachable cleaning layer (not shown in the figure). In the cleaning mechanism 2 of the present embodiment, a containing cavity 3111 is specially designed inside the mounting block 311, which provides a moving space for the abutting block 312. The abutting block 312 is connected to the mounting block 311 through the elastic member 313 and is movably contained in the containing cavity 3111. This design enables the abutting block 312 to elastically move within a certain range to adapt to cleaning requirements in different situations, while also avoiding hard collision between the glue injection head and the abutting head 31. In addition, it is particularly special that the upper end face of the abutting block 312 is provided with a detachable cleaning layer. The function of this cleaning layer is to contact the lower side of the cleaning cloth 21 when the cleaning cloth 21 needs to be cleaned, effectively removing impurities and residues attached to the cleaning cloth 21 through wiping, thereby achieving the purpose of cleaning the cleaning cloth 21. Moreover, since the cleaning layer is detachable, when the cleaning layer itself is dirty or needs to be replaced, the user can conveniently remove it from the abutting block for cleaning or replacement of a new cleaning layer. This design greatly improves the practicality and maintenance convenience of the cleaning mechanism 2.

[0051] According to different glue injection requirements, the material of the glue is different, and therefore, the cleaning layer of different materials can be arranged on the abutting block 312. For example, the sponge material cleaning layer selects high-density and uniform-pore polyurethane sponge as the cleaning layer material. The sponge is cut into a block shape matching the shape and size of the upper end surface of the abutting block. For example, the upper end surface of the abutting block is rectangular, and the sponge is also cut into a rectangular block of a corresponding size. When the cleaning mechanism works, the sponge material cleaning layer is in contact with the lower side surface of the cleaning cloth. The porous structure of the sponge has good adsorption, and can adsorb the glue residue, dust and other impurities on the cleaning cloth. In the wiping process, the soft texture of the sponge will not scratch the cleaning cloth, and the elasticity thereof can ensure full contact with the cleaning cloth, thereby improving the cleaning effect. Moreover, the sponge material is relatively cheap and easy to obtain. When the cleaning layer is dirty, it can be directly torn off from the abutting block, and a new sponge block is replaced. The non-woven fabric material cleaning layer can also be used, and the non-woven fabric is made of polyester fiber and viscose fiber. The surface of the non-woven fabric has many fine fibers, which can increase the friction with the cleaning cloth and effectively remove the stains on the cleaning cloth. At the same time, the fiber structure of the non-woven fabric can accommodate a certain amount of impurities, and plays a role in collecting and removing dirt in the wiping process. Moreover, the non-woven fabric material is relatively light and thin, and does not add too much weight to the cleaning mechanism. When the non-woven fabric cleaning layer is used for a period of time, it can be easily removed from the abutting block, and a new non-woven fabric is replaced. The microfiber towel material cleaning layer can also be used, and the towel made of superfine fibers is selected as the cleaning layer. The microfiber towel has an extremely fine fiber diameter, which is much finer than a hair. This makes it have a large specific surface area, and can adsorb more dirt and liquid. When in contact with the cleaning cloth for wiping, the microfiber towel can penetrate into the fiber gap of the cleaning cloth, and clean the hidden impurities. Moreover, the microfiber towel has strong water absorption, and can quickly absorb the water and residual glue on the cleaning cloth, so that the cleaning cloth remains dry and clean. When the cleaning layer needs to be replaced, the small hook can be easily removed from the small ring, and a new microfiber towel can be easily replaced. Therefore, as can be understood from the above, the material of the cleaning layer is not specifically limited in the embodiments of the present application, and the dirt on the cleaning cloth 21 can be wiped and removed.

[0052] Referring to Figures 1 to 2 In some embodiments of the present application, the cleaning cloth assembly 30 further comprises a cleaning platform 32 arranged on the workbench 1, and the cleaning cloth assembly 30 is provided with two abutting heads 31 which are independently and slidably arranged on the cleaning platform 32. The two abutting heads 31 are arranged at intervals in the first horizontal direction, and the interval between the two abutting heads 31 is adjustable. That is, the interval between the two abutting heads 31 arranged at intervals in the front-rear direction is adjustable.

[0053] Specifically, the cleaning mechanism 2 in the embodiment of the present application is more finely designed. The cleaning cloth assembly 30 comprises a cleaning platform 32 which is stably arranged on the workbench 1 to provide a stable base plane for the whole cleaning operation. On the cleaning platform 32, two abutting heads 31 are arranged which can independently slide. The way to realize independent sliding can be that two parallel sliding rails are arranged on the cleaning platform 32, the two sliding rails are arranged along the second horizontal direction, each abutting head 31 is equipped with a sliding block which is matched with the sliding rail, and the sliding block is driven to move on the sliding rail by a motor or other driving device, so as to realize independent sliding of the two abutting heads 31 on the cleaning platform 32. The two abutting heads 31 are arranged at intervals along the first horizontal direction, and the interval is adjustable. The mechanism to adjust the interval can adopt a screw-nut transmission device, a screw rod is arranged on the cleaning platform 32 along the first horizontal direction, the screw rod is fixed on the cleaning platform 32 through bearings at both ends, the screw rod is equipped with two threads with opposite rotation directions, and the two abutting heads 31 are connected with the threads with opposite rotation directions on the screw rod through nuts. When the screw rod is rotated, the two nuts will drive the two abutting heads 31 to move close to or away from each other due to the opposite rotation directions of the threads, so as to realize adjustment of the interval between the two abutting heads 31. An electric push rod can also be used, and both ends of the electric push rod are connected to the two abutting heads 31 respectively, and the interval between the two abutting heads 31 is adjusted by controlling the extension and contraction of the electric push rod.

[0054] In the actual cleaning process of the glue injection head, first, the interval between the two abutting heads 31 is adjusted according to the size and shape of the glue injection head. For example, if the glue injection head is wide, the interval between the two abutting heads 31 is adjusted to be large, and if the glue injection head is narrow, the interval is adjusted to be small, so as to ensure that the two abutting heads 31 can effectively clean the two glue injection heads synchronously. Then, the two glue injection heads of the glue injection mechanism are moved to a suitable position of the cleaning mechanism 2, the sliding seat 10 slides, and the cleaning cloth 21 is conveyed along the second horizontal direction by the glue wiping assembly 20, so that the clean part of the cleaning cloth 21 is delivered to the upper end face of the two abutting heads 31. Then, the cleaning cloth assembly 30 is started, and the two abutting heads 31 cooperate with the movement of the sliding seat 10 and the glue wiping assembly 20 to clean the two glue injection heads from all directions and at multiple angles. This design makes the cleaning mechanism adapt to the process requirements of multiple glue injection heads on the glue injection station, and is also suitable for glue injection processes with different intervals of circuit boards, thereby improving the flexibility and adaptability of cleaning, further ensuring the cleaning effect of the glue injection head, avoiding problems such as out-of-control glue output, uneven glue injection and bubble defects caused by glue residue, and ensuring the production quality and efficiency of the circuit board core positioning and glue injection.

[0055] Referring to Figure 2 and Figure 4In some embodiments of the present application, the wiping assembly 20 further comprises two accommodating containers 23, which are arranged on the sliding seat 10 and are used to accommodate the two winding and unwinding reels 22 respectively. The accommodating containers 23 have inlets and outlets 231 through which the cleaning cloth 21 can pass, and the accommodating containers 23 store cleaning liquid.

[0056] Specifically, in the cleaning mechanism 2 of the embodiments of the present application, the wiping assembly 20 is optimally designed. The wiping assembly 20 is additionally equipped with two accommodating containers 23, which are stably arranged on the sliding seat 10. The sliding seat 10, as a key component for driving the horizontal movement of the cleaning cloth 21, provides a stable mounting basis for the accommodating containers 23. The two accommodating containers 23 are used to accommodate two winding and unwinding reels 22 respectively. In actual application, one winding and unwinding reel 22 is used to wind the used cleaning cloth 21, and the other winding and unwinding reel 22 is used to provide clean cleaning cloth 21. Of course, the two winding and unwinding reels 22 can be used alternately, i.e., one winding and unwinding reel 22 is used to wind the used cleaning cloth 21, and the other winding and unwinding reel 22 is used to provide clean cleaning cloth 21. When the cleaning cloth 21 on the winding and unwinding reel 22 completes one delivery, the winding and unwinding reel 22 that winds the used cleaning cloth 21 becomes the winding and unwinding reel 22 that provides the cleaning cloth 21, and the winding and unwinding reel 22 that provides the cleaning cloth 21 becomes the winding and unwinding reel 22 that winds the used cleaning cloth 21. The accommodating containers 23 have inlets and outlets 231, the size of which is carefully designed to allow the cleaning cloth 21 to pass through. During the winding and unwinding process of the cleaning cloth 21, the cleaning cloth 21 passes out of the inlet and outlet 231 of one of the accommodating containers 23 and passes into the inlet and outlet 231 of the other accommodating container 23, realizing smooth movement of the cleaning cloth 21 between the two winding and unwinding reels 22. The accommodating containers 23 also store cleaning liquid. The selection of the cleaning liquid is determined according to the type of glue used in the glue injection process. For example, if polyurethane glue is used, an organic solvent cleaning liquid that can dissolve the residual components of the glue and has no damage to the cleaning cloth 21 and the equipment can be selected. When the cleaning cloth 21 passes through the accommodating containers 23, it is soaked in the cleaning liquid, and through the soaking and washing of the cleaning liquid, the cleaning cloth 21 can be repeatedly used, reducing the frequency of replacing the cleaning cloth 21 and reducing costs.

[0057] In the process of cleaning the glue injection head, the sliding seat 10 moves along the first horizontal direction, driving the two containing containers 23 and the internal take-up reel 22 and cleaning cloth 21 to move together. At the same time, the glue wiping assembly 20 drives the take-up reel 22 to rotate, so that the clean cleaning cloth 21 is unwound from the take-up reel 22 storing the clean cleaning cloth 21, passes through the inlet and outlet 231 of one of the containing containers 23 and is soaked in the cleaning liquid, and then reaches the upper end face of the abutting head 31 for wiping the glue injection head; the used cleaning cloth 21 passes through the inlet and outlet 231 of the other containing container 23, is also soaked in the cleaning liquid for preliminary cleaning, and is wound on the take-up reel 22 storing the used cleaning cloth 21.

[0058] The cleaning liquid can clean and wet the cleaning cloth 21. Before the cleaning cloth 21 wipes the glue injection head, soaking in the cleaning liquid can make the cleaning cloth 21 absorb enough cleaning liquid, enhance the dissolving ability of the cleaning cloth 21 to the residual glue on the glue injection head, and improve the cleaning effect. After the cleaning cloth 21 is used, soaking in the cleaning liquid again can dissolve and remove the residual glue on the cleaning cloth 21, preliminarily clean the cleaning cloth 21, prolong the service life of the cleaning cloth 21, and reduce the cleaning cost. This design can continuously provide clean cleaning cloth 21 with cleaning liquid during the cleaning of the glue injection head, effectively avoid the problem of incomplete cleaning caused by dirty or dry cleaning cloth 21, and further ensure the quality and production efficiency of the circuit board core positioning glue injection.

[0059] Further, in some embodiments of the present application, the upper side of the inlet and outlet 231 is provided with a liquid scraping portion 232, and the end of the liquid scraping portion 232 abuts against the cleaning cloth 21. Specifically, in the cleaning mechanism 2 of the embodiment of the present application, the inlet and outlet 231 of the containing container 23 of the glue wiping assembly 20 is further optimized and designed. The upper side of the inlet and outlet 231 is provided with a liquid scraping portion 232, which can be made of a material with certain elasticity and hardness, such as rubber or silicone material, which can ensure sufficient contact pressure with the cleaning cloth 21 and will not cause excessive wear to the cleaning cloth 21.

[0060] In some embodiments, the lowest point of the liquid scraping portion 232 is lower than the highest point of the take-up and release roller 221 of the take-up and release reel 22. Such a design enables the liquid scraping portion 232 to be in a suitable position to scrape the cleaning cloth 21 when the cleaning cloth 21 is passing out of or into the inlet and outlet 231 of the containing container 23; meanwhile, it also ensures that the liquid scraping portion 232 can still abut against the cleaning cloth 21 with a certain elastic force even when the take-up and release roller 221 has released the cleaning cloth 21, so that the liquid scraping portion 232 can keep scraping the cleaning cloth 21. Specifically, the take-up and release roller 221 drives the cleaning cloth 21 to move during rotation, and since the lowest point of the liquid scraping portion 232 is lower than the highest point of the take-up and release roller 221, the cleaning cloth 21 will inevitably be intercepted by the liquid scraping portion 232 when passing through the inlet and outlet 231. The end of the liquid scraping portion 232 abuts against the cleaning cloth 21. In actual work, when the cleaning cloth 21 passes out of the containing container 23 containing the cleaning liquid, a certain amount of cleaning liquid will be attached to the surface of the cleaning cloth 21. If these cleaning liquids are not treated, too much cleaning liquid may drop on the workbench 1 or the circuit board when the cleaning cloth 21 wipes the dispensing head, causing unnecessary pollution, and even affecting the quality of dispensing. The end of the liquid scraping portion 232 abuts against the cleaning cloth 21, and during the movement of the cleaning cloth 21, the liquid scraping portion 232 scrapes the cleaning liquid attached to the surface of the cleaning cloth 21.

[0061] For example, when the sliding seat 10 drives the containing container 23 and the take-up and release reel 22 to move, the cleaning assembly 20 drives the take-up and release roller 221 to rotate to move the cleaning cloth 21, the cleaning cloth 21 passes out of the containing container 23 through the inlet and outlet 231, the end of the liquid scraping portion 232 is in close contact with the cleaning cloth 21, and the excess cleaning liquid on the cleaning cloth 21 is scraped off, so that the cleaning cloth 21 reaches the upper end surface of the abutting head 31 in a more suitable wet state for wiping the dispensing head. Similarly, when the used cleaning cloth 21 passes into the inlet and outlet 231 of the other containing container 23, the liquid scraping portion 232 also scrapes the mixture of the residual glue and cleaning liquid on the surface of the cleaning cloth 21 to a certain extent, reduces the impurity content of the cleaning liquid entering the containing container 23, keeps the cleaning liquid in the containing container 23 relatively clean, and prolongs the use period of the cleaning liquid. Such a design effectively controls the amount of cleaning liquid on the cleaning cloth 21, avoids the problems caused by too much cleaning liquid, improves the working stability and cleaning effect of the cleaning mechanism, and further guarantees the production quality of the circuit board core positioning and dispensing.

[0062] Further, with reference to Figure 4 In some embodiments of the present application, the liquid scraping portion 232 is slidingly arranged in the shell of the containing container 23, the inner end of the liquid scraping portion 232 is connected to the inside of the shell of the containing container 23 through the pre-tightening member 2321, and the outer end of the liquid scraping portion 232 can abut against the cleaning cloth 21.

[0063] Specifically, in the cleaning mechanism 2 of the embodiment of the present application, the installation and adjustment mode of the liquid scraping part 232 is optimized. The liquid scraping part 232 is installed in the shell of the containing container 23 in a sliding manner. Specifically, a sliding groove (not shown in the figure) matching the liquid scraping part 232 is arranged on the shell of the containing container 23, and the liquid scraping part 232 can slide along the sliding groove to realize flexible adjustment of the position. The inner end of the liquid scraping part 232 is connected to the inside of the shell of the containing container 23 through a pre-tightening part 2321. The pre-tightening part 2321 can be selected from elastic components such as springs. One end of the spring is fixed to the inside of the shell of the containing container 23, and the other end is connected to the inner end of the liquid scraping part 232. In the initial state, the spring is in a certain compression state, thereby providing an outward pre-tightening force for the liquid scraping part 232. The outer end of the liquid scraping part 232 can abut against the cleaning cloth 21. In the actual working process, when the cleaning cloth 21 is fed out or fed in from the inlet and outlet 231 of the containing container 23, due to the pre-tightening action of the spring, even if the cleaning cloth 21 is in a certain feeding condition causing the tension of the cleaning cloth 21 to be different, through the action of the pre-tightening part 2321, the liquid scraping part 232 will always maintain an outward pressure, so that the outer end thereof abuts tightly against the cleaning cloth 21, thereby ensuring that the liquid scraping function is not affected.

[0064] For example, after the cleaning mechanism is used for a long time, the cleaning cloth 21 can be worn or deformed, causing the thickness of the cleaning cloth 21 to change, or the amount of the cleaning cloth 21 on the winding and unwinding reels 22 can be different, causing the tension of the cleaning cloth 21 to be different. At this time, since the liquid scraping part 232 is slidingly arranged in the shell of the containing container 23 and pre-tightened by the spring, when the thickness of the cleaning cloth 21 becomes thinner or the tension of the cleaning cloth 21 becomes smaller, the spring will push the liquid scraping part 232 to move outward along the sliding groove, so that the outer end of the liquid scraping part 232 can still abut tightly against the cleaning cloth 21, ensuring that the liquid scraping effect is not affected. Conversely, when the thickness of the cleaning cloth 21 becomes thicker or the tension of the cleaning cloth 21 becomes larger, the cleaning cloth 21 will press the liquid scraping part 232, causing the liquid scraping part 232 to move inward along the sliding groove, and the spring is further compressed, but the outer end of the liquid scraping part 232 can still abut against the cleaning cloth 21.

[0065] This design enables the liquid scraping part 232 to automatically adjust the position according to the thickness change or tension of the cleaning cloth 21, and always maintain effective contact with the cleaning cloth 21, thereby stably scraping the cleaning liquid or glue residue attached to the cleaning cloth 21. No matter what thickness change or tension change of the cleaning cloth 21 occurs in the use process, the reliability of the liquid scraping operation can be ensured, and problems such as cleaning liquid dripping or glue residue not being cleaned completely due to incomplete liquid scraping are avoided, thereby further improving the working performance and cleaning effect of the cleaning mechanism, and providing a strong guarantee for high-quality production of circuit board core positioning and glue injection.

[0066] Further, referring to Figure 4 In some embodiments of the present application, the lower side of the inlet and outlet 231 is provided with a flow guide part 233, which can be smoothly connected to the shell of the containing container 23, and the extension direction of the flow guide part 233 extends along the inside of the containing container 23, and the flow guide part 233 is arranged in a circular arc shape.

[0067] Specifically, in the cleaning mechanism 2 of the embodiments of the present application, the structure of the containing container 23 at the inlet and outlet 231 is further optimized. A flow guide part 233 is provided on the lower side of the inlet and outlet 231, which is connected to the shell of the containing container 23 in a reliable manner such as integral molding or tight welding, so as to ensure that it can be smoothly connected to the shell of the containing container 23, avoiding problems such as liquid leakage caused by connection gaps. The extension direction of the flow guide part 233 extends along the inside of the containing container 23, which makes the cleaning liquid that falls or drips from the cleaning cloth 21 guided by the flow guide part 233 and smoothly flows back to the inside of the containing container 23. The flow guide part 233 is arranged in a circular arc shape, and the surface of the circular arc shape is smooth without sharp corners, which can reduce the resistance of the cleaning liquid during flow, making the cleaning liquid flow back more smoothly.

[0068] In actual work process, when the liquid scraping part 232 scrapes the excess cleaning liquid on the cleaning cloth 21, part of the cleaning liquid will drip from the cleaning cloth 21. Since the flow guide part 233 is arranged on the lower side of the inlet and outlet 231 and extends in a circular arc shape along the inside of the containing container 23, the dripping cleaning liquid will fall on the flow guide part 233 and slide along the surface of the circular arc-shaped flow guide part 233 to the inside of the containing container 23. For example, when the sliding seat 10 moves the containing container 23, the wiping assembly 20 drives the cleaning cloth 21 to move, and after the liquid scraping part 232 scrapes the cleaning liquid, the cleaning liquid will not randomly drip on the workbench 1 or other parts of the equipment, but will accurately flow back to the containing container 23 along the flow guide part 233. This design effectively collects the cleaning liquid that drips from the cleaning cloth 21, avoids the leakage of the cleaning liquid, keeps the working environment clean, and reduces the pollution and damage to the circuit board or equipment caused by the dripping of the cleaning liquid. At the same time, recycling the cleaning liquid into the containing container 23 can also realize the recycling of the cleaning liquid, reduce the cleaning cost, improve the use efficiency of resources, and further improve the practicality and economy of the entire cleaning mechanism.

[0069] Referring to Figure 4 In some embodiments of the present application, the inside of the containing container 23 is provided with a plurality of conveying rollers 234, which are arranged in a horizontal direction and at least partially immersed in the cleaning liquid, and the cleaning cloth 21 is sequentially arranged on the plurality of conveying rollers 234.

[0070] Specifically, the structure inside the containing container 23 is optimized in the cleaning mechanism 2 of the embodiment. A plurality of conveying rollers 234 are arranged inside the containing container 23, which are stably installed on the side wall of the containing container 23 through shafts and bearings, and are arranged in the horizontal direction at intervals. The material of the conveying rollers 234 can be corrosion-resistant stainless steel to ensure that they will not rust in long-term contact with the cleaning liquid and ensure the stability and reliability of the conveying of the cleaning cloth 21. At least part of the structure of the plurality of conveying rollers 234 is immersed in the cleaning liquid, and the liquid level of the cleaning liquid is accurately controlled so that the conveying rollers 234 can drive the cleaning cloth 21 to fully contact the cleaning liquid during rotation. For example, the liquid level of the cleaning liquid can be set at one-third to one-half of the diameter of the conveying rollers 234 according to the material of the cleaning cloth 21 and the characteristics of the cleaning liquid, so that the cleaning cloth 21 can fully absorb the cleaning liquid and avoid overflow caused by too much cleaning liquid. The cleaning cloth 21 is wound around the plurality of conveying rollers 234 in sequence, and the specific winding method is as follows: the cleaning cloth 21 is unwound from one of the take-up reels 22, first passes around the first conveying roller 234 near the inlet and outlet 231, then passes around the subsequent plurality of conveying rollers 234 in sequence, and finally is wound around the other take-up reel 22. During winding, the cleaning cloth 21 and the conveying rollers 234 maintain a certain tension, which can be adjusted by the tensioning device arranged in the wiping assembly 20 to ensure that the cleaning cloth 21 does not slacken or become too tight during conveying.

[0071] In actual work, when the wiping assembly 20 drives the take-up reel 22 to rotate, the cleaning cloth 21 begins to move. When the cleaning cloth 21 passes around the conveying rollers 234 immersed in the cleaning liquid, it fully absorbs the cleaning liquid, so that the cleaning liquid is evenly attached to the surface of the cleaning cloth 21. For example, when cleaning the glue injection head, the cleaning cloth 21 with cleaning liquid can better dissolve and remove the residual glue on the glue injection head. At the same time, the arrangement of the plurality of conveying rollers 234 prolongs the conveying path of the cleaning cloth 21 in the containing container 23, increases the contact time and contact area of the cleaning cloth 21 with the cleaning liquid, and further improves the cleaning effect and wetness of the cleaning cloth 21. This design not only ensures that the cleaning cloth 21 can fully absorb the cleaning liquid during conveying, improves the cleaning efficiency and quality, but also ensures the stability and reliability of the conveying of the cleaning cloth 21 through reasonable winding method and tension control, reduces the probability of failure of the cleaning cloth 21 during conveying, and provides a strong guarantee for the cleaning work of the circuit board core positioning glue injection.

[0072] It should be noted that the liquid level of the cleaning liquid is arranged at one-third to one-half of the diameter of the conveying roller 234, so that the cleaning cloth 21 can fully absorb the cleaning liquid, and the cleaning liquid can be prevented from overflowing. In addition, during the cleaning of the glue injection head, the sliding seat 10 moves in the first horizontal direction, driving the two containing containers 23 and the internal take-up and pay-off reels 22 and cleaning cloths 21 to move together, so that the cleaning liquid in the containing container 23 is quickly shaken therein, so that the cleaning liquid can be used to flush the cleaning cloth 21 wound on the conveying roller 234, and the glue residue on the cleaning cloth 21 can be washed clean for the next use. It should be noted that the cleaning cloth 21 is wound on the conveying roller 234 in sequence, which can increase the contact area with the cleaning liquid, so that the cleaning liquid can better wash the cleaning cloth 21, so as to improve the cleanliness of the cleaning cloth 21.

[0073] The circuit board core positioning glue injection device (not shown in the figure) according to the second aspect of the present application comprises a glue injection mechanism and the cleaning mechanism 2 of any one of the above-mentioned first aspect embodiments, the glue injection mechanism is located above the workbench 1, the glue injection mechanism comprises a glue injection head, and the cleaning mechanism 2 is configured to clean the glue injection head. The circuit board core positioning glue injection device of the present application integrates the glue injection mechanism and the cleaning mechanism 2, and the two work together to realize efficient and accurate circuit board core glue injection work.

[0074] Specifically, the glue injection mechanism is stably arranged above the workbench 1, and the core component thereof is a glue injection head. The glue injection head adopts a high-precision glue injection valve structure, and is internally provided with a precise flow control device and a needle positioning system. The flow control device can accurately adjust the outflow amount of glue according to the preset glue injection parameters, so as to ensure that the amount of glue injection each time meets the process requirements. The needle positioning system can quickly and accurately move the glue injection head to the specified glue injection position of the circuit board core by using a high-precision sensor and a servo motor, so as to effectively ensure the accuracy of the glue injection position. The cleaning mechanism 2 is closely matched with the glue injection mechanism, and is specially configured for cleaning the glue injection head. During the glue injection process, glue will gradually remain on the glue injection head with the increase of the number of glue injection, and if not cleaned in time, the remaining glue may drop on the circuit board during the next glue injection, which affects the glue injection quality and the performance of the circuit board.

[0075] When the glue injection head finishes one glue injection operation, the cleaning mechanism 2 starts to work. Before cleaning, the glue injection head is moved to the upper side of the cleaning mechanism 2 through the mechanical truss. The glue wiping assembly 20 drives the take-up reel 22 to rotate, so that the clean cleaning cloth 21 is put out from the containing container 23 in which the clean cleaning cloth 21 is stored, passes through the inlet and outlet 231 and is soaked in the cleaning liquid in the containing container 23. After soaking, the cleaning cloth 21 is conveyed to the upper end surface of the abutting head 31. At this time, the lifting device drives the abutting head 31 to move upward, so that the cleaning cloth 21 is in close contact with the glue injection head. During the contact process, the sliding seat 10 drives the glue wiping assembly 20 to move forward and backward, and cooperates with the left and right conveying of the cleaning cloth 21, so that the horizontal movement of the cleaning cloth 21 is realized. The cleaning liquid on the cleaning cloth 21 can dissolve the glue remaining on the glue injection head, and the fiber structure of the cleaning cloth 21 can wipe off the dissolved glue.

[0076] During the wiping process of the cleaning cloth 21 on the glue injection head, the liquid scraping part 232 on the upper side of the inlet and outlet 231 scrapes the excess cleaning liquid on the cleaning cloth 21, so as to prevent the cleaning liquid from dripping too much. The liquid scraping part 232 is connected with the shell of the containing container 23 through the pre-tightening part 2321, and can automatically adjust the position according to the thickness of the cleaning cloth 21, so as to ensure that the effective contact with the cleaning cloth 21 is always ensured. The flow guide part 233 on the lower side of the inlet and outlet 231 guides the scraped cleaning liquid or the dripping cleaning liquid back into the containing container 23, so as to avoid the leakage of the cleaning liquid. During the process of passing through the plurality of conveying rollers 234, the cleaning cloth 21 fully absorbs the cleaning liquid, so as to ensure the wetness and cleaning ability of the cleaning cloth 21. When the cleaning cloth 21 is used for a period of time, the glue wiping assembly 20 will wind the used cleaning cloth 21 into the containing container 23 in which the used cleaning cloth 21 is stored, and put out the new clean cleaning cloth 21 at the same time, so as to realize the automatic replacement of the cleaning cloth 21 and ensure the continuity of the cleaning effect.

[0077] Through the cooperative work of the glue injection mechanism and the cleaning mechanism 2, the circuit board core positioning glue injection device of the embodiment of the application can always keep the glue injection head clean, ensure the stable and reliable quality of each glue injection, and greatly improve the production efficiency and product quality of the circuit board core glue injection.

[0078] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0079] Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A cleaning mechanism for a circuit board core positioning glue injection device, used for cleaning the glue injection head of the glue injection mechanism, the cleaning mechanism is arranged on a workbench (1) of the circuit board core positioning glue injection device, the workbench (1) has a first horizontal direction and a second horizontal direction, the first horizontal direction is perpendicular to the second horizontal direction, characterized in that, The cleaning mechanism comprises: a sliding seat (10) arranged on the workbench (1), which can reciprocally slide on the workbench (1) along the first horizontal direction; a rubber wiping assembly (20) arranged on the sliding seat (10), which can be driven by the sliding seat (10) to reciprocally slide along the first horizontal direction, the rubber wiping assembly (20) comprising a cleaning cloth (21) and two roll-receiving reels (22), two ends of the cleaning cloth (21) being respectively received in the two roll-receiving reels (22), the cleaning cloth (21) being capable of conveying along the second horizontal direction; a cloth wiping assembly (30) arranged on the workbench (1), which is located between the rubber wiping assembly (20), the cloth wiping assembly (30) comprising a liftable abutting head (31), the cleaning cloth (21) being located on the upper end face of the abutting head (31), the rubber injection head being capable of being pressed downward on the cleaning cloth (21) and pressing the cleaning cloth (21) downward to abut on the abutting head (31), the cleaning cloth (21) being used for wiping and cleaning the rubber injection head, the abutting head (31) being used for wiping the lower side of the cleaning cloth (21); and two surface changing assemblies, the two surface changing assemblies being respectively arranged between the roll-receiving reels (22) and the abutting head (31), the cleaning cloth (21) being arranged in the surface changing assemblies, the surface changing assemblies being used for turning over the cleaning cloth (21); the rubber wiping assembly (20) further comprising two containing containers (23) arranged on the sliding seat (10), the two containing containers (23) being respectively used for containing the two roll-receiving reels (22), the containing container (23) having an inlet and outlet (231), the cleaning cloth (21) being capable of being arranged in the inlet and outlet (231), the containing container (23) containing cleaning liquid; the upper side of the inlet and outlet (231) being provided with a liquid scraping part (232), the end of the liquid scraping part (232) abutting against the cleaning cloth (21); the liquid scraping part (232) being slidably arranged in the shell of the containing container (23), the inner end of the liquid scraping part (232) being connected with the inside of the shell of the containing container (23) through a pre-tightening part (2321), the outer end of the liquid scraping part (232) being capable of abutting against the cleaning cloth (21).

2. The cleaning mechanism for positioning and injecting glue for a core of a circuit board according to claim 1, wherein the abutting head (31) comprising a mounting block (311) and an abutting block (312), the abutting block (312) being movably arranged in the mounting block (311) through an elastic part (313), the cleaning cloth (21) being arranged on the upper end face of the abutting block (312).

3. The cleaning mechanism for positioning and injecting glue for a core of a circuit board according to claim 2, wherein The mounting block (311) is provided with a containing cavity (3111), the abutting block (312) is movably contained in the containing cavity (3111) through the elastic piece (313), and an upper end surface of the abutting block (312) is provided with a detachable cleaning layer.

4. The cleaning mechanism for positioning and injecting glue for a core of a circuit board according to claim 1, wherein The cleaning cloth assembly (30) further comprises a cleaning platform (32) arranged on the workbench (1), the cleaning cloth assembly (30) comprises two abutting heads (31), the two abutting heads (31) are independently slidably arranged on the cleaning platform (32), the two abutting heads (31) are spaced apart along the first horizontal direction, and the spacing of the two abutting heads (31) is adjustable.

5. The cleaning mechanism for positioning and injecting glue for a core of a circuit board according to claim 1, wherein The lower side of the inlet and outlet (231) is provided with a flow guide part (233), the flow guide part (233) can be smoothly connected to the shell of the containing container (23), the extension direction of the flow guide part (233) extends along the inside of the containing container (23), and the flow guide part (233) is arranged in a circular arc shape.

6. The cleaning mechanism for positioning and injecting glue for a core of a circuit board according to claim 1, wherein The inside of the containing container (23) is provided with a conveying roller (234), at least part of the structure of the conveying roller (234) is soaked in cleaning liquid, and the cleaning cloth (21) is arranged around the conveying roller (234).

7. A circuit board core positioning and glue injection device, characterized in that, The cleaning mechanism comprises a glue injection mechanism and a circuit board core positioning glue injection cleaning mechanism according to any one of claims 1 to 6, the glue injection mechanism is located above the workbench (1), the glue injection mechanism comprises a glue injection head, and the cleaning mechanism is configured to clean the glue injection head.

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