A batch point threading glue device for fasteners

Abstract

The present application relates to a kind of fastener batch point thread glue device, belong to fastener processing technical field, solve the problem of time-consuming and laborious by artificial gluing.The present application includes liquid storage cylinder, shunt block, connecting pipe and box body, liquid storage cylinder is injected into the glue solution in box body by shunt block and connecting pipe, by the piston rod of depressing piston is driven piston to descend and make the glue solution in liquid storage cylinder pass through connecting pipe and be pressed into the bushing installation hole of box body;Fastener is installed on support plate, and pressure is applied to make support plate and fastener descend, and fastener passes through excess glue wiping pad and is immersed in the thread glue solution in bushing installation hole, and gluing is carried out;After gluing is completed, fastener and support plate rise under the reaction force of spring, when the fastener after gluing is extracted from excess glue wiping pad, excess glue on fastener is wiped by excess glue wiping pad.The present application realizes the standardization gluing of batch fastener.

Description

Technical Field

[0001] This invention relates to the field of fastener processing technology, and in particular to a device for batch application of thread adhesive to fasteners. Background Technology

[0002] Applying thread-locking adhesive to fasteners is a removable fastener anti-loosening measure that provides a certain degree of anti-loosening effect, such as countersunk screws or other special-purpose fasteners.

[0003] The production and manufacturing of electronic equipment in the military industry is mostly carried out in a multi-variety, small-batch mode. Due to the compact structure of the equipment, a large number of countersunk screws are used. These screws cannot be prevented from being loosened by conventional anti-loosening methods such as spring washers. Thread adhesive is often applied to prevent loosening. Furthermore, since fasteners need to be repeatedly disassembled during debugging, maintenance and repair, there are certain requirements for the amount of adhesive applied.

[0004] The conventional method for applying fastener adhesive is to manually immerse each fastener in the thread-locking adhesive to a certain depth and then wipe off the excess adhesive with a wiping paper, or to manually apply the adhesive directly to the surface of the fastener through a nozzle.

[0005] Existing methods can achieve quantitative control of the amount of adhesive applied, but they are extremely inefficient and it is difficult to control the consistency of the amount of adhesive applied. Summary of the Invention

[0006] Based on the above analysis, the present invention aims to provide a device for batch application of thread adhesive to fasteners, in order to solve the problems of low efficiency and long time consumption of existing manual adhesive application methods.

[0007] The objective of this invention is mainly achieved through the following technical solutions:

[0008] A device for mass application of thread-locking adhesive to fasteners, comprising:

[0009] The box is used to hold the adhesive liquid;

[0010] A support plate is positioned on top of the box body;

[0011] Multiple fasteners are arranged on the support plate and can move up and down with the support plate;

[0012] An elastic reset mechanism is disposed between the housing and the support plate to achieve reset after the support plate is pressed down.

[0013] Furthermore, the support plate is provided with multiple tapered holes, which are used to position and install fasteners.

[0014] Furthermore, a fastener pressure plate is provided above the support plate, which presses the fastener against the support plate.

[0015] Furthermore, the box body is provided with bushing mounting holes; the bushing mounting holes are used to hold adhesive liquid.

[0016] Furthermore, a square groove is provided above the bushing mounting hole, and a residual adhesive wiping pad is provided in the square groove. When the support plate is pressed down, the fastener passes through the residual adhesive wiping pad and enters the bushing mounting hole.

[0017] Furthermore, an annular bushing is installed in the bushing mounting hole.

[0018] Furthermore, the bushing is made of an absorbent material. Preferably, the bushing is made of sponge.

[0019] Furthermore, the elastic reset mechanism includes a spring shaft and a spring.

[0020] Furthermore, the spring shaft passes through the support plate and is fixedly connected to the box body; the spring shaft is slidably engaged with the support plate.

[0021] Furthermore, the spring is sleeved outside the spring shaft.

[0022] Furthermore, the spring is disposed between the support plate and the housing.

[0023] A method for applying adhesive to fasteners using a batch thread-applying adhesive device includes the following steps:

[0024] Step S1: Insert the fastener into the tapered hole of the support plate and tighten it using the fastener clamping plate;

[0025] Step S2: Manually press down the fastener pressure plate and support plate; the support plate moves the fastener down, and the lower part of the fastener is immersed in the adhesive in the bushing mounting hole;

[0026] Step S3: Loosen the fastener pressure plate, and the support plate will reset under the action of the elastic reset mechanism, thus completing the glue application.

[0027] Furthermore, when the support plate is reset, it causes the fastener to move upward. During the upward movement of the fastener, it disengages from the bushing mounting hole and the excess adhesive is wiped off by the excess adhesive wiping pad.

[0028] The technical solution of this invention can achieve at least one of the following effects:

[0029] 1. This invention enables quantitative adhesive application to a large number of fasteners at once. Adhesive is injected into the bushing mounting hole to achieve adhesive application / dispensing when the fastener is inserted into the bushing mounting hole. A bushing capable of absorbing adhesive is installed in the bushing mounting hole. Through frictional contact between the bushing and the fastener, the adhesive absorbed in the bushing can be coated onto the surface of the fastener. Even when the adhesive level is lower than the bushing, the coating length can still be guaranteed, achieving the function of automatically compensating for low deviation liquid level.

[0030] 2. The present invention is provided with a residual adhesive wiping pad and a bushing capable of absorbing adhesive liquid, and adhesive can be applied through the residual adhesive wiping pad and the bushing, which can automatically compensate for slight deviations in adhesive liquid level; when the adhesive liquid level in the bushing mounting hole is insufficient, the fastener can also be applied adhesive through contact with the residual adhesive wiping pad and the bushing.

[0031] 3. The excess adhesive wiping pad of the present invention is disposed above the bushing mounting hole. When there is too much adhesive on the fastener, the excess adhesive wiping pad can wipe away the excess adhesive on the fastener during the process of the fastener being pulled out from the excess adhesive wiping pad.

[0032] 4. The present invention is provided with an elastic reset mechanism, which can push the support plate to reset after the glue is applied, thereby automatically taking out the glued fasteners.

[0033] 5. This invention enables standardized glue application for batch fasteners, ensuring consistency in the amount of glue applied to multiple fasteners and guaranteeing the quality of the glue application.

[0034] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0035] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0036] Figure 1 A schematic diagram of the fastener batch thread-applying adhesive device of the present invention;

[0037] Figure 2 A cross-sectional view along the AA direction of the fastener batch thread adhesive applicator of the present invention;

[0038] Figure 3 This is a schematic diagram of the housing of the fastener batch thread-applying adhesive device of the present invention;

[0039] Figure 4 This is a cross-sectional view along the BB direction of the housing of the fastener batch thread-applying adhesive device of the present invention;

[0040] Figure 5 This is a schematic diagram of the support plate of the fastener batch thread-applying adhesive device of the present invention.

[0041] Figure label:

[0042] 1: Piston rod; 2: Liquid reservoir cap; 3: Liquid reservoir; 4: Piston; 5: Piston sealing ring; 6: End cap; 7: Piston cover; 8: Diverter block; 9: Straight head connector; 10: Connecting pipe; 11: Box body; 12: Upper cover plate mounting screw; 13: Upper cover plate; 14: Residual adhesive wiping pad; 15: Bushing; 16: Lower cover plate; 17: Lower cover plate mounting screw; 18: T-type connector; 19: Fastener pressure plate; 20: Support plate; 21: Height adjustment micro-head; 22: Positioning pin; 23: Spring shaft; 24: Spring sleeve; 25: Spring; 26: Liquid level tube; 27: Cap; 28: Lower cover plate sealing ring; 29: Diverter block mounting screw; 30: Fastener;

[0043] 11-1: Square groove; 11-2: Bushing mounting hole; 11-3: Pin hole; 11-4: Spring mounting hole; 11-5: Sealing ring mounting groove;

[0044] 20-1: Tapered hole; 20-2: Slotted groove. Detailed Implementation

[0045] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0046] Example 1

[0047] A specific embodiment of the present invention discloses a device for batch application of thread adhesive to fasteners, such as... Figure 1 , Figure 2 As shown, it includes: a box body 11, a filling assembly, a support plate 20, and an elastic reset mechanism; wherein, the box body 11 contains adhesive for applying fasteners 30; the support plate 20 is disposed above the box body 11; multiple fasteners 30 are arranged on the support plate 20 and can move up and down with the support plate 20; the elastic reset mechanism is disposed between the box body 11 and the support plate 20, and is used to reset the support plate 20 after it is pressed down.

[0048] Specifically, the lower end of the fastener 30 extends out of the lower surface of the support plate 20.

[0049] During implementation, the support plate 20 is manually pressed down, and the support plate 20 moves down against the elastic force of the elastic reset mechanism. This causes multiple fasteners 30 to move down simultaneously through the support plate 20. The portion of the fasteners 30 extending beyond the lower surface of the support plate 20 is immersed in the adhesive in the box 11. When the support plate 20 is released, it moves up under the elastic force of the elastic reset mechanism, causing multiple fasteners 30 to move out of the box 11 synchronously, thus completing the synchronous dispensing (applying) process for multiple fasteners 30.

[0050] Furthermore, the support plate 20 is provided with multiple tapered holes 20-1, which are used to position and install the fasteners 30.

[0051] Preferably, the fastener 30 is a screw or bolt, the stud portion of the fastener 30 passes through the tapered hole 20-1 and extends out of the lower surface of the support plate 20, and the head of the fastener 30 is supported by the tapered hole 20-1 so that the fastener 30 will not fall off the support plate 20.

[0052] Furthermore, a fastener pressure plate 19 is provided above the support plate 20. The fastener pressure plate 19 can press the fastener 30 against the support plate 20 and is used to fix the fastener 30 to be glued. In practice, the fastener pressure plate 19 is floating above the support plate 20, and the fastener 30 to be glued is placed in the tapered hole 20-1 of the support plate 20 and pressed by the fastener pressure plate 19. The fastener pressure plate 19 and the tapered hole 20-1 work together to limit the relative displacement of the fastener 30 relative to the support plate 20. The fastener pressure plate 19 is floating above the support plate 20. After the glue is applied, the fastener pressure plate 19 is removed, and the glued fastener 30 is removed from the support plate 20.

[0053] Furthermore, such as Figure 5 As shown, the support plate 20 has a rectangular array of tapered holes 20-1 for positioning and installing the fasteners 30. On both sides of the tapered holes 20-1, there are slots 20-2. When the fasteners 30 are too small to be picked up by hand, tweezers can be used to reach into the slots 20-2 to pick up the fasteners 30, which solves the technical problem of the inconvenience of picking up small fasteners.

[0054] Furthermore, in order to facilitate the removal of excess adhesive adhering to the fastener 30, the present invention also provides an adhesive wiping pad 14.

[0055] In one specific embodiment of the present invention, such as Figure 3 , Figure 4 As shown, a square groove 11-1 and a bushing mounting hole 11-2 are provided on the box body 11; the bushing mounting hole 11-2 is used to hold the adhesive liquid, and a residual adhesive wiping pad 14 is provided in the square groove 11-1. When the support plate 20 is pressed down, the fastener 30 passes through the residual adhesive wiping pad 14 and enters the bushing mounting hole 11-2.

[0056] Specifically, the residual adhesive wiping pad 14 is provided with multiple through holes corresponding to the bushing mounting holes 11-2. The width of the through holes is smaller than the diameter of the fastener 30. The residual adhesive wiping pad 14 is elastic, and the fastener 30 can pass through the through holes and enter the bushing mounting holes 11-2.

[0057] Because the diameter of the through hole on the adhesive wiping pad 14 is smaller than the diameter of the fastener 30, resistance will be generated when the fastener 30 passes through the through hole on the adhesive wiping pad 14. By setting the fastener pressure plate 19 and applying pressure, the fastener 30 can be ensured to pass smoothly through the through hole on the adhesive wiping pad 14. Furthermore, when the fastener 30 is removed from the housing 11, the adhesive on the surface of the adhesive wiping pad 14 can wipe away the excess adhesive on the surface of the fastener 30, avoiding excessive adhesive application.

[0058] Furthermore, an annular bushing 15 is installed in the bushing mounting hole 11-2.

[0059] Furthermore, both the residual adhesive wiping pad 14 and the bushing 15 are made of elastic materials.

[0060] In one specific embodiment of the present invention, both the residual adhesive wiping pad 14 and the bushing 15 are porous elastic materials. The porous elastic material automatically compensates for low-deviation liquid levels by using porous elastic materials, which can absorb adhesive liquid.

[0061] When the fastener 30 comes into contact with the excess adhesive wiping pad 14 and the bushing 15, adhesive can be applied through the excess adhesive wiping pad 14 and the bushing 15. When the liquid level in the bushing mounting hole 11-2 is lower than that in the bushing 15, the adhesive can be applied to the surface of the fastener 30 through frictional contact between the bushing 15 and the fastener 30, thus automatically compensating for slight deviations in the adhesive level. That is, when there is excess adhesive on the fastener 30, the excess adhesive wiping pad 14 can wipe away the excess adhesive on the fastener 30. When the adhesive level in the bushing mounting hole 11-2 is insufficient, the fastener 30 can also be applied through contact with the excess adhesive wiping pad 14 and the bushing 15.

[0062] Preferably, the residual adhesive wiping pad 14 and the bushing 15 are made of sponge material.

[0063] In one specific embodiment of the present invention, such as Figure 4 As shown, the box body 11 is provided with a pin hole 11-3, and the positioning pin 22 is pressed into the pin hole 11-3 of the box body 11. The positioning pin 22 is used to ensure that the support plate 20 does not shift when it moves up and down.

[0064] After passing through the positioning pin 22, the support plate 20 is installed above the elastic reset mechanism. The positioning pin 22 can realize the positioning between the box 11 and the support plate 20, ensuring that the tapered hole 20-1 is aligned with the bushing mounting hole 11-2, that is, ensuring that the fastener 30 on the support plate 20 can be smoothly inserted into the bushing mounting hole 11-2 to apply adhesive.

[0065] To ensure sufficient adhesive in the box 11, the present invention also includes a filling component for storing adhesive and filling adhesive into the box 11.

[0066] In one specific embodiment of the present invention, the filling assembly includes: a piston rod 1, a liquid reservoir cover 2, a liquid reservoir 3, and a piston 4. The liquid reservoir 3 stores spare adhesive. The liquid reservoir cover 2 is installed on the upper part of the liquid reservoir 3. The piston rod 1 is movably installed on the liquid reservoir cover 2. The piston 4 is fixedly installed at the lower end of the piston rod 1. The piston 4 is disposed in the liquid reservoir 3 and is in sealed contact with the inner wall of the liquid reservoir 3 through a piston sealing ring 5.

[0067] Specifically, piston rod 1 passes through the liquid storage cylinder cover 2 and is connected to piston 4, and piston rod 1 can slide relative to liquid storage cylinder cover 2. When piston rod 1 moves up and down relative to liquid storage cylinder cover 2, it can drive piston 4 to move up and down in liquid storage cylinder 3, thereby pressing the adhesive in liquid storage cylinder 3 into box body 11.

[0068] Furthermore, a plug 6 is installed on the side of the liquid storage cylinder 3, and the plug 6 is screwed onto the liquid storage cylinder 3. Removing the plug 6 allows the piston 4 to be easily pressed into the liquid storage cylinder 3, while tightening the plug 6 creates a sealed space between the piston 4 and the liquid storage cylinder 3.

[0069] Furthermore, a piston cover 7 is installed at the bottom of piston 4; specifically, after piston rod 1 passes through piston 4, the tail end of piston rod 1 is riveted to fix it to piston 4; piston cover 7 is press-fitted onto piston 4; piston sealing ring 5 is installed on the side of piston 4, so that the side of piston 4 is in sealed contact with the inner wall of liquid storage cylinder 3. In practice: piston 4, with piston cover 7, piston sealing ring 5 and piston rod 1 installed, is pressed into liquid storage cylinder 3, and liquid storage cylinder cover 2 is screwed onto liquid storage cylinder 3; piston rod 1 is pressed down to make piston 4 push the adhesive in liquid storage cylinder 3 into box 11.

[0070] Furthermore, the liquid storage cylinder 3 is connected to the box body 11 through the branch block 8 and the connecting pipe 10.

[0071] Specifically, the branch block 8 is fixedly mounted on the liquid storage cylinder 3 by the branch block mounting screw 29, and the branch block 8 is fixedly connected to the box body 11 by the branch block mounting screw 29.

[0072] Specifically, the branch block 8 has three branches: the first branch, the second branch, and the third branch. The first branch is connected to the liquid storage tank 3, the second branch is connected to the liquid level pipe 26, and the third branch is connected to the connecting pipe 10.

[0073] Furthermore, one end of the connecting pipe 10 is connected to the third branch of the branch block 8 through the straight connector 9, and the other end of the connecting pipe 10 is connected to the box 11 through the T-type connector 18.

[0074] In one specific embodiment of the present invention, an upper cover plate 13 is provided on the upper part of the box body 11, and a lower cover plate 16 is provided on the bottom of the box body 11.

[0075] Furthermore, in this invention, the box body 11 is used as the base, and the residual adhesive wiping pad 14 and the bushing 15 are installed in the square groove 11-1 and the bushing mounting hole 11-2 of the box body 11 in sequence, and are pressed in sequence by the upper cover plate 13 and the upper cover plate mounting screw 12.

[0076] Specifically, the upper cover plate 13 is used to press the residual adhesive wiping pad 14 and the bushing 15 onto the box body 11. The upper cover plate 13 is fastened to the box body 11 by the upper cover plate mounting screws 12. Multiple openings are provided on the upper cover plate 13. Silicone rubber is pre-applied to the contact area between the upper cover plate 13 and the box body 11. After the silicone rubber has cured, the upper cover plate 13 is pressed tightly with the upper cover plate mounting screws 12 to seal it with the box body 11 and prevent adhesive leakage during handling. The openings of the upper cover plate 13 are sealed with a thin film when the device is moved to prevent adhesive leakage.

[0077] Furthermore, the lower cover plate 16 is installed at the bottom of the box body 11 and fixed to the box body 11 with the lower cover plate mounting screws 17.

[0078] Specifically, the bottom of the box body 11 is provided with a recessed sealing ring mounting groove 11-5, which can communicate with the bushing mounting hole 11-2 on the box body 11.

[0079] Specifically, the lower cover sealing ring 28 is installed on the sealing ring mounting groove 11-5 of the box body 11; it is used to seal the gap between the box body 11 and the lower cover 16.

[0080] After the lower cover plate 16 is installed, a connecting cavity is formed between the sealing ring mounting groove 11-5 of the box body 11 and the lower cover plate 16. The upper part of the connecting cavity is connected to multiple bushing mounting holes 11-2, and the side of the connecting cavity is connected to the connecting pipe 10 through the T-shaped connector 18.

[0081] Specifically, the branch block 8 is installed on the housing 11 and fixed with branch block mounting screws 29; the T-shaped connector 18 is screwed onto the lower cover plate 16; the straight connector 9 is screwed onto the branch block 8; the two ends of the connecting pipe 10 are respectively crimped onto the straight connector 9 and the T-shaped connector 18, thus connecting the liquid storage cylinder 3 and the housing 11. When the adhesive is significantly insufficient, tightening the piston rod 1 causes the piston 4 to sink, squeezing the adhesive in the liquid storage cylinder 3 into the bushing mounting hole 11-2 of the housing 11.

[0082] In one specific embodiment of the present invention, the elastic reset assembly includes: a spring shaft 23, a spring sleeve 24, and a spring 25; the spring shaft 23 passes through the support plate 20 and is fixedly connected to the housing 11; the spring shaft 23 is slidably engaged with the support plate 20. The spring 25 is sleeved outside the spring shaft 23 and is located between the support plate 20 and the housing 11.

[0083] The spring sleeve 24 is located below the support plate 20. The spring shaft 23 passes through the spring 25 and the spring sleeve 24 in sequence and is screwed into the threaded hole of the box body 11. The two ends of the spring 25 are respectively installed in the spring mounting holes 11-4 and the spring sleeve 24 of the box body 11.

[0084] Furthermore, a limiting part is provided at the top of the spring shaft 23, and the diameter of the limiting part is larger than the diameter of the main body of the spring shaft 23, so that the support plate 20 will not detach from the spring shaft 23 from above.

[0085] Furthermore, the bottom of the spring shaft 23 is provided with a threaded section, and the housing 11 is provided with a spring mounting hole. The spring 25 is locked in the spring mounting hole 11-4, and the bottom of the spring mounting hole 11-4 is provided with a threaded hole. The threaded section at the bottom of the spring shaft 23 is screwed into the threaded hole on the housing 11, so that the spring shaft 23 is fixedly connected to the housing 11.

[0086] During implementation, the support plate 20 is pressed down, which compresses the spring 25. The support plate 20 drives the fastener 30 into the bushing mounting hole 11-2 for adhesive application. After the adhesive application is completed, the support plate 20 is released. Under the elastic force of the spring 25, the support plate 20 moves upward, removing the fastener 30 from the bushing mounting hole 11-2 and the residual adhesive wiping pad 14.

[0087] In one specific embodiment of the present invention, a height adjustment microhead 21 is installed on the support plate 20. The height adjustment microhead 21 is used to limit the downward height of the fastener pressure plate 19 and the support plate 20, so as to control the glue dispensing length of the fastener.

[0088] Specifically, the height adjustment microhead 21 is threadedly connected to the support plate 20, and the lower part of the height adjustment microhead 21 extends beyond the bottom surface of the support plate 20. When the support plate 20 is manually pressed down, the bottom of the height adjustment microhead 21 abuts against the upper surface of the housing 11, limiting the downward stroke of the support plate 20, thereby limiting the depth of the fastener immersed in the adhesive, and realizing the adjustment of the adhesive application length on the fastener surface.

[0089] In one specific embodiment of the present invention, a liquid level pipe 26 is installed on the branch block 8; the liquid level pipe 26 is screwed onto the branch block 8.

[0090] The liquid level tube 26 is connected to the bushing mounting hole 11-2 on the box body 11 through the connecting pipe 10. The liquid level tube 26, the connecting pipe 10 and the bushing mounting hole 11-2 form a communicating vessel. The liquid level height inside the box body 11 can be observed by observing the liquid level height of the liquid level tube 26.

[0091] Furthermore, the liquid level tube 26 is made of transparent non-metallic material for easy observation of the liquid level inside the tube. Max, Mid, and Min level lines are engraved on the outside, representing the highest, middle, and lowest liquid levels, respectively. The liquid level inside the control box 11 is maintained between the Max and Min level lines to prevent overflow or insufficient adhesive.

[0092] Furthermore, a cap 27 is fitted to the top of the level tube 26. The cap 27 is press-fitted onto the level tube 26 to prevent dust from entering the tube and contaminating the adhesive. The cap 27 has a slot, ensuring that the inside of the level tube 26 remains connected to the outside after installation, thus maintaining the same liquid level as the box 11. When the device needs to be moved, the cap 27 is screwed into place, cutting off the connection between the inside of the tube and the outside, preventing adhesive from overflowing.

[0093] During implementation:

[0094] The reservoir 3, branch block 8, T-connector 18, connecting pipe 10, straight connector 9, and housing 11 contain threadlocker adhesive. Pressing down the piston rod 1 moves the piston 4 downward, forcing the adhesive from the reservoir 3 through the connecting pipe 10 into the bushing mounting hole 11-2 of the housing 11. A certain force is manually applied to the fastener pressure plate 19, causing it to sink and move the support plate 20 and fastener 30 downward. The fastener 30 passes through the excess adhesive wiping pad 14 and is immersed in the threadlocker adhesive. After the applied force is removed, the fastener pressure plate 19, fastener 30, and support plate 20 rise under the reaction force of the spring 25. When the adhesive-coated fastener 30 is removed from the excess adhesive wiping pad 14, the excess adhesive on the fastener 30 is wiped away by the pad.

[0095] Example 2

[0096] A specific embodiment of the present invention provides a method for applying adhesive to fasteners using a batch thread-applying adhesive device as described in Embodiment 1, comprising the following steps:

[0097] Step S1: Install the fastener 30 onto the support plate 20;

[0098] Step S2: Manually press down the fastener pressure plate 19 and the support plate 20; the support plate 20 drives the fastener to move down, and the lower part of the fastener is immersed in the adhesive in the bushing mounting hole 11-2;

[0099] Step S3: Loosen the fastener pressure plate 19, the support plate 20 is reset under the action of the elastic reset mechanism, the fastener moves up and disengages from the bushing mounting hole 11-2 and the excess adhesive is wiped off by the excess adhesive wiping pad 14.

[0100] Specifically, in step S1, the fastener 30 is installed on the support plate 20 in the following manner:

[0101] Step S11: Remove the fastener pressure plate 19 above the support plate 20 and insert the fastener 30 to be glued into the tapered hole 20-1 on the support plate 20.

[0102] Step S12: Place the fastener pressure plate 19 on the support plate 20, so that it presses the fastener 30 to be glued in the tapered hole 20-1 on the support plate 20 by its own weight.

[0103] Furthermore, in step S1, when the pressure support plate 20 applies adhesive to the fastener 30, the length of the adhesive application on the fastener 30 can be adjusted.

[0104] Specifically: Calculate and adjust the length of the height adjustment micro-head 21 extending out of the lower surface of the support plate 20 according to the specifications of the fastener 30 to be coated and the coating length; the depth of the fastener 30 extending into the bushing mounting hole 11-2 is the difference between the length of the fastener 30 extending out of the bottom surface of the support plate 20 and the length of the height adjustment micro-head 21 extending out of the bottom surface of the support plate 20.

[0105] In step S1, the support plate 20 is provided with a plurality of tapered holes 20-1 arranged in an array, which can be used to install a plurality of fasteners 30. The fasteners 30 are limited above by a fastener pressure plate 19, so that the fasteners 30 cannot be displaced relative to the support plate 20. After the fasteners 30 are installed in place, the studs of the fasteners 30 extend out of the lower surface of the support plate 20.

[0106] Specifically, in step S2, when the fastener pressure plate 19 is manually pressed down to sink it, the fastener pressure plate 19 drives the support plate 20 and the fastener 30 to move downwards. After moving into position, the fastener 30 extends into the bushing mounting hole 11-2 on the housing 11, and the height adjustment micro-head 21 is supported on the upper surface of the housing 11. The depth to which the fastener 30 extends into the bushing mounting hole 11-2 is the difference between the length of the fastener 30 extending out of the bottom surface of the support plate 20 and the length of the height adjustment micro-head 21 extending out of the bottom surface of the support plate 20.

[0107] Meanwhile, a communication device is formed between the liquid level tube 26 and the bushing mounting hole 11-2. When the liquid level in the liquid level tube 26 is lower than the Min line, the piston rod 1 in the liquid storage cylinder 3 is rotated and pressed down to adjust the liquid level between the Max line and the Mid line, ensuring that the adhesive in the bushing mounting hole 11-2 is sufficient.

[0108] Furthermore, in step S2, by pressing down the piston rod 1 and the piston 4, the piston 4 pushes the adhesive in the liquid storage cylinder 3 into the bushing mounting hole 11-2 for use in applying adhesive.

[0109] Specifically, during the downward movement of piston 4, the adhesive flows from reservoir 3 into branch block 8. The third branch of branch block 8 is connected to connecting pipe 10. The adhesive flowing into branch block 8 enters bushing mounting hole 11-2 through connecting pipe 10.

[0110] Furthermore, when the adhesive in the storage tank 3 is insufficient, it needs to be replenished. The process is as follows:

[0111] Step S21: Unscrew the liquid storage cylinder cap 2 and pull out the piston assembly (i.e., piston rod 1 and piston 4);

[0112] Step S22: Slowly pour the threadlocker adhesive into the storage cylinder 3. The first branch of the branch block 8 is connected to the storage cylinder 3, and the second branch is connected to the level tube 26. Part of the added adhesive flows into the level tube 26 through the second branch. The liquid level in the storage cylinder 3 is indirectly observed using the principle of communicating vessels. Observe the liquid level in the level tube 26 to ensure that the liquid level never exceeds the Max line. When the liquid level in the level tube 26 remains constant and is between the Max line and the Mid line, the addition is complete.

[0113] Step S23: Unscrew the plug 6, slowly insert the piston assembly into the liquid storage cylinder 3 and tighten the liquid storage cylinder cap 2, slowly rotate the piston rod 1 to observe the liquid level height in the liquid level tube 26, stop rotating when the liquid level height reaches the Max line and tighten the plug 6.

[0114] It is worth noting that when the plug 6 is unscrewed, the liquid level tube 26 and the liquid storage cylinder 3 also form a communicating vessel, and the liquid level height of the liquid level tube 26, the liquid storage cylinder 3, and the bushing mounting hole 11-2 are all the same; after the plug is tightened, the liquid level tube 26 only forms a communicating vessel with the bushing mounting hole 11-2, which is used to observe the liquid level height in the bushing mounting hole 11-2.

[0115] In step S3, a bushing 15 is installed in the bushing mounting hole 11-2, and a residual adhesive wiping pad 14 is placed above the bushing 15.

[0116] Slowly release the applied force on the support plate 20, causing the fastener pressure plate 19 and the support plate 20 to float up under the elastic force of the spring 25 of the elastic reset mechanism, bringing out the fastener 30 after the glue has been applied.

[0117] Specifically, as the spring 25 moves the support plate 20 upward, the fastener 30 is pulled out from the bushing mounting hole 11-2 and the excess adhesive wiping pad 14 in sequence; when the fastener 30 is removed from the excess adhesive wiping pad 14, the excess adhesive on the fastener 30 is wiped off by the excess adhesive wiping pad 14.

[0118] Further, remove the fastener pressure plate 19, take out the glued fastener 30, and observe the glue application quality.

[0119] Compared with the prior art, the technical solution provided in this embodiment has at least one of the following beneficial effects:

[0120] 1. This invention improves the process of impregnating single fasteners with thread-locking adhesive and designs a device for batch application of thread-locking adhesive to fasteners, which allows multiple fasteners to be coated with adhesive at the same time, strictly controls the amount of adhesive applied, and is simple to operate and highly efficient.

[0121] 2. This invention enables batch application of thread-locking adhesive to fasteners. It is simple to operate, highly efficient, and, unlike automatic glue applicators, has a low manufacturing cost.

[0122] 3. This invention automatically compensates for low-deviation liquid levels by using porous elastic materials in the bushing 15 and the residual adhesive wiping pad 14. Furthermore, through the design of the external pressure storage cylinder 3 and the liquid level pipe 26, the piston 4 can be pressed down to replenish the adhesive in the bushing mounting hole 11-2 in a timely manner, avoiding the problem of frequent liquid addition and improving work efficiency.

[0123] 4. The height adjustment micrometer head 21 of the present invention, which is used to adjust the immersion depth of the fastener 30, can strictly control the amount of adhesive applied to the fastener.

[0124] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for batch application of thread-locking adhesive to fasteners, characterized in that, include: Box (11) is used to hold adhesive liquid; A support plate (20) is disposed above the box body (11); a bushing mounting hole (11-2) is provided on the box body (11); the bushing mounting hole (11-2) is used to hold adhesive liquid; an annular bushing (15) is installed in the bushing mounting hole (11-2); the bushing (15) is made of absorbent material; multiple fasteners (30) are arranged on the support plate (20) and can move up and down with the support plate (20); the box A square groove (11-1) is provided on the body (11), and a residual adhesive wiping pad (14) is provided in the square groove (11-1). When the support plate (20) is pressed down, the fastener (30) passes through the residual adhesive wiping pad (14) and enters the bushing mounting hole (11-2). When the fastener (30) is removed from the box body (11), the residual adhesive wiping pad (14) can wipe away the residual adhesive on the surface of the fastener (30) to avoid excessive adhesive application. A filling assembly is used to store adhesive and fill the box (11) with adhesive; the filling assembly includes: a piston rod (1), a liquid storage cylinder cover (2), a liquid storage cylinder (3) and a piston (4). When the piston rod (1) moves up and down relative to the liquid storage cylinder cover (2), it can drive the piston (4) to move up and down in the liquid storage cylinder (3), thereby pressing the adhesive in the liquid storage cylinder (3) into the box (11); The liquid storage cylinder (3) is connected to the box body (11) through the branch block (8) and the connecting pipe (10); the branch block (8) has three branches, namely the first branch, the second branch and the third branch; the first branch is connected to the liquid storage cylinder (3), the second branch is connected to the liquid level pipe (26), and the third branch is connected to the connecting pipe (10); the liquid level pipe (26) is connected to the bushing mounting hole (11-2) on the box body (11) through the connecting pipe (10). The liquid level pipe (26), the connecting pipe (10) and the bushing mounting hole (11-2) form a communicating vessel. The liquid level height in the box body (11) is observed by observing the liquid level height of the liquid level pipe (26). An elastic reset mechanism is provided between the housing (11) and the support plate (20) to achieve reset after the support plate (20) is pressed down.

2. The fastener batch thread-applying adhesive device according to claim 1, characterized in that, The support plate (20) is provided with a plurality of tapered holes (20-1), which are used to position and install the fasteners (30).

3. The fastener batch thread-applying adhesive device according to claim 2, characterized in that, A fastener pressure plate (19) is provided above the support plate (20), and the fastener pressure plate (19) presses the fastener (30) against the support plate (20).

4. The fastener batch thread-applying adhesive device according to claim 1, characterized in that, The elastic reset mechanism includes a spring shaft (23) and a spring (25).

5. The fastener batch thread-applying adhesive device according to claim 4, characterized in that, The spring shaft (23) passes through the support plate (20) and is fixedly connected to the box body (11); the spring shaft (23) and the support plate (20) are in sliding fit.

6. The fastener batch thread-applying adhesive device according to claim 5, characterized in that, The spring (25) is sleeved on the outside of the spring shaft (23).

7. The fastener batch thread-applying adhesive device according to claim 6, characterized in that, The spring (25) is disposed between the support plate (20) and the box (11).

Images