An automatic bolt marking paste application device

Abstract

This utility model discloses an automatic bolt marking paste application device, comprising: a discharging component, a driving component, a flow control component, and a control box; the discharging component includes a discharging pipe and a piston disposed in the discharging pipe, with marking paste disposed in the discharging pipe, and the marking paste being extruded by the movement of the piston; the driving component is provided with an air pipe connected to the side of the piston away from the marking paste, and drives the piston to move by outputting compressed air; the flow control component is connected to the controller of the driving component; the control box has a hollow box structure, the flow control component is disposed in the control box, and the discharging component is detachably connected to the control box. The driving component compresses air and outputs it to the discharging pipe to push the piston to squeeze the marking paste, ensuring uniform extrusion. This avoids the waste of marking paste caused by uncontrollable extrusion during manual squeezing, and also reduces the workload of operators by minimizing the need for excessive manpower.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of bolt marking technology, and more specifically, relate to an automatic bolt marking paste application device. Background Technology

[0002] In the operation and maintenance system of high-speed trains, bolts are critical connecting components, and the application of anti-loosening markings is of paramount importance. During spring and autumn overhauls and routine maintenance, workers need to apply anti-loosening markings to a large number of bolts. Currently, the main method uses toothpaste-tube-shaped oil-based marking paste, applied manually by squeezing with fingers. However, this traditional method has several significant problems: the amount of marking paste squeezed out relies entirely on the operator's feel, making precise flow control impossible; after manual application, the difficulty in precisely controlling when to stop squeezing leads to continued paint overflow; deformation of the marking paste casing during squeezing prevents complete extrusion, resulting in significant material waste; and prolonged, high-intensity repetitive application causes extreme fatigue in the operator's hand muscles.

[0003] Various automated devices have emerged in the prior art. For example, Chinese Patent No. CN212765400U discloses a marking pen for marking anti-loosening bolts of high-speed trains, which includes a pen core assembly, a double-headed piston pump assembly, and a pen barrel. The ink dispensing assembly is located in the lower middle part of the inner cavity of the pen barrel. The pen core assembly is installed in the inner cavity of the pen barrel near its bottom end. The pen core assembly includes a pen core sleeve, which consists of a first sponge sleeve, a middle sponge sleeve, and a second sponge sleeve from left to right. A stopcock seat is fitted at the bottom end of the pen core sleeve, and the outer surface of the stopcock seat is threadedly connected to the pen barrel.

[0004] Chinese patent CN212765400U describes a method of creating a stepped shape by pressing a pen refill sponge block against the contour of a hexagonal bolt head, forming an anti-loosening mark that is convenient, quick, and improves work efficiency. However, it uses a marking pen refill, which is easily erased in the long-term working environment of high-speed trains. Furthermore, this marking pen is not compatible with marking paste, which offers better marking results. Therefore, there is a need for an automatic bolt marking paste application device that can reduce the workload of workers and improve marking accuracy while retaining the use of marking paste with better marking effects. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides an automatic bolt marking paste application device. By adjusting the preset parameters of the flow control component, the flow rate and pressure of compressed air are regulated. Then, the drive component is activated, compressing the air and outputting it to the discharge pipe to push the piston to extrude the marking paste evenly. This avoids the waste of marking paste caused by the uncontrollable extrusion volume during manual extrusion, and also reduces the workload of operators by minimizing the need for excessive manpower.

[0006] To achieve the above objectives, this utility model provides an automatic bolt marking paste application device, comprising: a discharging component, a driving component, a flow control component, and a control box;

[0007] The discharge assembly includes a discharge pipe and a piston disposed in the discharge pipe. Marking paste is disposed in the discharge pipe, and the marking paste is squeezed out by the movement of the piston.

[0008] The drive assembly is equipped with an air pipe connected to the side of the piston away from the marking paste, and pushes the piston to move by outputting compressed air;

[0009] The flow control component is connected to the controller of the drive component;

[0010] The control box has a hollow box structure, the flow control component is located in the control box, and the discharge component is detachably connected to the control box.

[0011] Furthermore, the discharge pipe is a hollow round tube with its front end tapering and protruding outward as a discharge nozzle, and its rear end opening and having connecting ears that spread outward to both sides.

[0012] The piston has a conical front end with a concave waist. Both the front and rear ends of the waist are slidably sealed to the inner wall of the discharge pipe. The piston is a hollow structure.

[0013] Furthermore, a discharge needle is provided at the discharge nozzle at the front end of the discharge tube. The diameter of the discharge needle is smaller than the diameter of the discharge nozzle, and the marking paste is squeezed out through the discharge needle.

[0014] Furthermore, the control box has a hollow box structure, and an opening is provided on the outer wall of the control box. A discharge pipe mounting seat is also provided at the opening. A venting rod is provided at the rear end of the discharge pipe mounting seat. The venting rod passes through the opening on the outer wall of the control box and enters the control box. The outer wall of the venting rod is provided with multiple layers of inverted conical connecting platforms.

[0015] Furthermore, the front end of the discharge pipe mounting base is a mounting plate, and the two sides of the mounting plate extend forward and then bend inward to form a connecting groove. The connecting ear at the rear end of the discharge pipe is provided in the connecting groove, so that the discharge pipe is fixed on the discharge pipe mounting base.

[0016] The venting rod is provided with an air passage, which passes through the discharge pipe mounting base and connects to the discharge pipe. The contact surfaces of the discharge pipe and the discharge pipe mounting base are covered with a rubber layer, which forms a seal.

[0017] Furthermore, the drive assembly includes an air pump and a manual switch;

[0018] The air pump is a miniature air pump, which is located inside the control box. The output end of the miniature air pump is connected to the rear air vent rod of the discharge pipe mounting base.

[0019] The manual switch is connected to the power input terminal of the air pump, and the manual switch is mounted on the discharge pipe via a switch mounting base, which is fitted onto the discharge pipe.

[0020] Furthermore, the drive assembly also includes a power supply, which is connected to the air pump via a manual switch to provide electrical drive to the air pump.

[0021] Furthermore, the flow control component includes a vent valve, which is also connected to the rear vent rod of the discharge pipe mounting base. The vent valve is a normally open valve, which closes when energized and opens when de-energized, and is also connected to the manual control switch.

[0022] Furthermore, it also includes a positioning component, which includes a positioning base;

[0023] The positioning base is a flat base, with one end of the positioning base having an upward protrusion on the top surface to serve as a positioning handle.

[0024] Furthermore, the bottom surface of the positioning base has an upward circular recessed area in the middle as a flat pad limiting area, and the center of the flat pad limiting area has an upward recessed area for seat bolt limiting.

[0025] A hollowed-out marking groove is provided from the center of the bolt limiting area outward along a radius thereof, and the marking groove connects the bolt limiting area, the flat washer limiting area and the positioning base.

[0026] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0027] 1. This utility model's automatic bolt marking paste application device adjusts the flow rate and pressure of compressed air by adjusting preset parameters in the flow control component. Then, the drive component is activated to compress the air and output it to the discharge pipe, pushing the piston to extrude the marking paste evenly. This avoids the waste of marking paste caused by uncontrollable extrusion during manual extrusion, and also reduces the workload of operators by minimizing the need for extensive manual labor.

[0028] 2. In the automatic bolt marking paste application device of this utility model, when the hand control switch is pressed, the air pump starts to pressurize the discharge pipe and the air release valve is closed; when the hand control switch is released, the air pump stops, the air release valve releases air, and the compressed air in the discharge pipe is discharged to balance the air pressure at both ends of the piston, so that the discharge component immediately stops dispensing paste.

[0029] 3. The automatic bolt marking paste application device of this utility model involves placing the positioning component on the bolt and the flat washer, and then using the dispensing component to apply the marking paste to the marking groove, so that the marking paste forms a standard straight line on the bolt, the flat washer, and the device.

[0030] 4. In the automatic bolt marking paste application device of this utility model, after the marking paste in the discharge pipe is used up, it needs to be removed for glue filling. Therefore, there should be no connection between the piston and the discharge pipe mounting base. In this embodiment, the piston is moved by an air pump to achieve the above purpose, which can avoid the inability to disassemble it by using a motor. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the connection structure between the discharge component and the drive component of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram from another perspective of the connection structure between the discharge component and the drive component of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the control box of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the dispensing component of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0036] Figure 6 This is a cross-sectional view of the dispensing component of an automatic bolt marking paste application device according to an embodiment of the present invention;

[0037] Figure 7 This is a cross-sectional view of the positioning component structure of an automatic bolt marking paste application device according to an embodiment of the present invention.

[0038] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-drive assembly, 101-power supply, 102-air pump, 103-manual switch, 104-switch mounting base, 2-flow control assembly, 201-PWM adjustment board, 202-adjustment knob, 203-vent valve, 3-discharge assembly, 301-discharge pipe, 302-piston, 303-discharge needle, 4-control box, 401-discharge pipe mounting base, 5-positioning assembly, 501-positioning base, 502-flat pad limiting area, 503-bolt limiting area, 504-marking groove, 505-positioning handle. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1-7 As shown, this utility model embodiment provides an automatic bolt marking paste application device, including a discharge assembly 3 for extruding marking paste, a drive assembly 1 disposed on the discharge assembly 3 to provide extrusion force, a flow control assembly 2 connected to the drive assembly 1 for controlling the magnitude of its extrusion force, and a control box 4 for integrating the discharge assembly 3 and the flow control assembly 2. The discharge assembly 3 includes a discharge pipe 301 and a piston 302 disposed in the discharge pipe 301. Marking paste is disposed in the discharge pipe 301, and the piston 302 extrudes the marking paste by moving. The drive assembly 1 is provided with an air pipe connected to the side of the piston 302 away from the marking paste, and outputs compressed air to drive the piston 302 to move. The flow control assembly 2 controls the flow rate of the compressed air output by the drive assembly 1 through a preset adjustment knob, thereby controlling the extrusion speed of the marking paste. By adjusting the preset parameters of the flow control assembly 2, the flow rate and pressure of the compressed air are adjusted, and then the drive assembly 1 is activated to compress the air and output it to the discharge pipe 301 to push the piston 302 to extrude the marking paste evenly. This avoids the waste of marking paste caused by the inability to control the extrusion volume due to manual squeezing, and also avoids the use of a large amount of manpower, reducing the workload of operators.

[0041] The discharge pipe 301 is a hollow cylindrical tube with its front end tapering and protruding outward as a discharge nozzle, and its rear end opening, with connecting ears extending outward to both sides. The piston 302 has a tapered front end with a concave waist, and both the front and rear ends of the waist are slidably sealed to the inner wall of the discharge pipe 301. The piston 302 is a hollow structure.

[0042] It is understandable that the piston 302 is designed as a hollow structure with a concave waist. The inward concavity of the shell can, on the one hand, form two layers of seal between the piston 302 and the discharge pipe 301 to prevent air leakage from affecting the compression function of the piston 302; on the other hand, it can reduce the weight of the piston 302 while ensuring its strength, so as to obtain better operability.

[0043] As a further preferred embodiment, in order to facilitate the retraction of piston 302 after the marking paste in discharge pipe 301 is used up, a pull rope is provided at the rear end of piston 302. After the marking paste in discharge pipe 301 is used up, piston 302 is withdrawn from discharge pipe 301 by pulling the pull rope, and marking paste is refilled for later use.

[0044] The discharge nozzle at the front end of the discharge pipe 301 is also provided with a discharge needle 303. The diameter of the discharge needle 303 is smaller than the diameter of the discharge nozzle. The marking paste is squeezed out through the discharge needle 303, and the width of the marking paste is adjusted to the marking requirements. While ensuring the marking width, the amount used is controlled to avoid waste caused by excessive width.

[0045] As a further preferred embodiment, in order to achieve the optimal ratio between the width of the mark and the amount of mark paste extruded, the tip of the discharge needle 303 is set to be flat.

[0046] The control box 4 is a hollow box structure, and its outer wall has an opening. A discharge pipe mounting base 401 is located at this opening. A venting rod is located at the rear end of the discharge pipe mounting base 401, passing through the opening into the control box 4. The outer wall of the venting rod has multiple layers of inverted conical connecting platforms. The front end of the discharge pipe mounting base 401 is a mounting plate. Both sides of the mounting plate extend forward and then bend inward to form a connecting groove. The connecting lug at the rear end of the discharge pipe 301 is located in this connecting groove, fixing the discharge pipe 301 to the discharge pipe mounting base 401. An air passage is provided in the venting rod, which passes through the discharge pipe mounting base 401 and connects to the discharge pipe 301. The contact surfaces of the discharge pipe 301 and the discharge pipe mounting base 401 are covered with a rubber layer, forming a seal to prevent air leakage.

[0047] The drive assembly 1 includes an air pump 102 and a manual switch 103. The air pump 102 is a miniature air pump located inside the control box 4. Its output is connected to the rear vent rod of the discharge pipe mounting base 401, through which compressed air is transmitted to the discharge pipe 301 to provide thrust to the piston 302. The manual switch 103 is connected to the power input of the air pump 102 and is mounted on the discharge pipe 301 via a switch mounting base 104, which is fitted onto the discharge pipe 301. The drive assembly 1 also includes a power supply 101, which is connected to the air pump 102 via the manual switch 103 to provide electrical power to the air pump 102.

[0048] Understandably, during use, by holding the discharge pipe 301 and pressing the hand control switch 103, the air pump 102 is powered on and runs, providing thrust to the piston 302 to squeeze out the paste. Releasing the hand control switch 103 will stop the paste dispensing.

[0049] The flow control component 2 is placed in the control box 4 and includes a PWM adjustment board 201 and an adjustment knob 202. The PWM adjustment board 201 is connected to the controller of the air pump 102, and the adjustment knob 202 is connected to the PWM adjustment board 201. By rotating the adjustment knob 202, the flow rate of compressed air output by the air pump 102 is controlled.

[0050] The flow control component 2 also includes a vent valve 203, which is also connected to the rear vent rod of the discharge pipe mounting base 401. The vent valve 203 is a normally open valve that closes when energized and opens when de-energized, and is also connected to the manual switch 103.

[0051] Understandably, when the hand switch 103 is pressed, the air pump 102 starts to pressurize the discharge pipe 301, and the air release valve 203 is closed; when the hand switch 103 is released, the air pump 102 stops, the air release valve 203 releases air, and the compressed air in the discharge pipe 301 is discharged, balancing the air pressure at both ends of the piston 302, so that the discharge assembly 3 immediately stops discharging paste.

[0052] As a further preferred embodiment, the power supply 101 is connected to the hand switch 103 via a cable and a plug, so that the connection can be directly disconnected and the power supply 101 replaced after the power supply 101 is depleted. The power supply 101 is also equipped with a strap, which is used to attach the power supply 101 to the arm for easy carrying and operation by the operator.

[0053] The automatic bolt marking paste application device of this utility model further includes a positioning component 5, which works in conjunction with the dispensing component 3 to provide positioning. The positioning component 5 includes a positioning base 501, which is a flat base. One end of the positioning base 501 has an upward-protruding top surface serving as a positioning handle 505 for easy handling by the operator. The bottom surface of the positioning base 501 has an upward-facing circular recessed area in the middle, serving as a flat washer limiting area 502. The center of the flat washer limiting area 502 also has an upward-facing recessed area serving as a bolt limiting area 503. A hollow marking groove 504 is provided outwards along a radius from the center of the bolt limiting area 503, connecting the bolt limiting area 503, the flat washer limiting area 502, and the positioning base 501.

[0054] Understandably, when using this device, the positioning component 5 is placed on the bolt and the flat washer, and then the discharge component 3 is used to apply marking paste to the marking groove 504, so that the marking paste forms a standard straight line on the bolt, the flat washer, and the device.

[0055] As a further preferred option, the positioning component 5 is available in various specifications. When used on site, the appropriate positioning component 5 is selected according to the specifications of the bolts to complete the marking of all bolts.

[0056] It is understood that in this embodiment of the utility model, after the marking paste in the discharge pipe 301 is used up, it needs to be removed for glue filling. Therefore, there cannot be a connection between the piston 302 and the discharge pipe mounting base 401. In this embodiment, the above purpose can be achieved by using the air pump 102 to push the piston 302 to move, which can avoid the inability to disassemble it using a motor.

[0057] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic bolt marking paste application device, characterized in that, include: The discharge assembly (3), drive assembly (1), flow control assembly (2), and control box (4); The discharge assembly (3) includes a discharge pipe (301) and a piston (302) disposed in the discharge pipe (301). Marking paste is disposed in the discharge pipe (301), and the marking paste is squeezed out by the movement of the piston (302). The drive assembly (1) is provided with an air pipe connected to the side of the piston (302) away from the marking paste, and the piston (302) is moved by outputting compressed air; The flow control component (2) is connected to the controller of the drive component (1); The control box (4) is a hollow box structure. The flow control component (2) is located in the control box (4), and the discharge component (3) is detachably connected to the control box (4).

2. The automatic bolt marking paste application device according to claim 1, characterized in that, The discharge pipe (301) is a hollow round pipe with its front end tapering and protruding outward as a discharge nozzle, and its rear end opening and having connecting ears that spread outward to both sides. The piston (302) has a conical front end and a concave waist. The front and rear ends of the waist are slidably sealed to the inner wall of the discharge pipe (301). The piston (302) is a hollow structure.

3. The automatic bolt marking paste application device according to claim 2, characterized in that, The discharge nozzle at the front end of the discharge pipe (301) is also provided with a discharge needle (303), the diameter of which is smaller than the diameter of the discharge nozzle, and the marking paste is squeezed out through the discharge needle (303).

4. An automatic bolt marking paste application device according to any one of claims 1-3, characterized in that, The control box (4) is a hollow box structure, and the outer wall of the control box (4) is provided with an opening. A discharge pipe mounting seat (401) is also provided at the opening. A venting rod is provided at the rear end of the discharge pipe mounting seat (401). The venting rod passes through the opening on the outer wall of the control box (4) and enters the control box (4). A multi-layer inverted conical connecting platform is provided on the outer wall of the venting rod.

5. The automatic bolt marking paste application device according to claim 4, characterized in that, The front end of the discharge pipe mounting base (401) is a mounting plate. The two sides of the mounting plate extend forward and then bend inward to form a connecting groove. The connecting ear at the rear end of the discharge pipe (301) is located in the connecting groove, so that the discharge pipe (301) is fixed on the discharge pipe mounting base (401). The ventilation rod is provided with an air passage, which passes through the discharge pipe mounting base (401) and connects to the discharge pipe (301). The contact surfaces of the discharge pipe (301) and the discharge pipe mounting base (401) are covered with a rubber layer, which forms a seal.

6. The automatic bolt marking paste application device according to claim 5, characterized in that, The drive assembly (1) includes an air pump (102) and a manual switch (103). The air pump (102) is a miniature air pump, which is located inside the control box (4). The output end of the miniature air pump is connected to the rear air rod of the discharge pipe mounting base (401). The manual switch (103) is connected to the power input terminal of the air pump (102), and the manual switch (103) is mounted on the discharge pipe (301) through the switch mounting base (104), which is fitted onto the discharge pipe (301).

7. The automatic bolt marking paste application device according to claim 6, characterized in that, The drive assembly (1) also includes a power supply (101) which is connected to the air pump (102) via a hand switch (103) to provide power to drive the air pump (102).

8. The automatic bolt marking paste application device according to claim 7, characterized in that, The flow control component (2) includes a vent valve (203), which is also connected to the rear vent rod of the discharge pipe mounting base (401). The vent valve (203) is a normally open valve that closes when energized and opens when de-energized, and is also connected to the manual switch (103).

9. An automatic bolt marking paste application device according to any one of claims 1-3, characterized in that, It also includes a positioning component (5), which includes a positioning base (501); The positioning base (501) is a flat base, and one end of the positioning base (501) protrudes upward as a positioning handle (505).

10. The automatic bolt marking paste application device according to claim 9, characterized in that, The bottom surface of the positioning base (501) has an upward circular recessed area in the middle as a flat pad limiting area (502), and the center of the flat pad limiting area (502) has an upward recessed area as a bolt limiting area (503). A hollowed-out marking groove (504) is provided from the center of the bolt limiting area (503) outward along a radius thereof. The marking groove (504) connects the bolt limiting area (503), the flat washer limiting area (502), and the positioning base (501).

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