Special machine for automatically spraying lubricating grease on headrest rod

Abstract

The utility model relates to the technical field of headrest rod oil spraying, in particular to a special machine for automatically spraying lubricating grease to a headrest rod, which comprises a support frame, a machine frame is further fixed on the support frame, a left-right linear module is fixed on the machine frame, and an up-down linear module is fixed on an output shaft of the left-right linear module. A mounting frame is fixed to the output end of the up-down linear module, and a pair of spray valves is arranged on the mounting frame; a U-shaped plate is fixed to the front side of the mounting frame, a forward and reverse rotation motor is fixed to the U-shaped plate, a movable plate is fixed to an output shaft of the forward and reverse rotation motor, the pair of spray valves is arranged on the movable plate, and the distance between the spray valves is adjustable. According to the special machine for automatically spraying the lubricating grease on the headrest rod, the positive and negative rotation motor is started, and the output shaft of the positive and negative rotation motor drives the movable plate to rotate, so that the pair of spraying valves can rotate by a certain angle around the spraying end of the headrest rod, the spraying on the peripheral surface of the spraying end of the headrest rod is more uniform, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of headrest rod oil spraying technology, specifically a special machine for automatically spraying lubricating grease onto headrest rods. Background Technology

[0002] Headrests are an important component of car seats. They are typically attached to the seat via two headrest rods. However, during actual production, the insertion and extraction forces often become excessive due to internal friction, exceeding design standards. To ensure that the insertion and extraction forces meet standard requirements, lubricating grease is usually applied to the headrest rods during assembly.

[0003] Currently, the most common method is manual application. This method requires a lot of manual labor. When workers use oiling sponges to apply oil, it is not easy to apply the oil evenly, and it also wastes rust-preventive oil or grease. To solve the above problems, some factories design their own oiling fixtures. However, when spraying, since the spraying area of ​​the headrest bar is the entire outer circumference, but the spraying range of the spray valve is limited, if oil is sprayed directly on both sides of the headrest bar, it may result in the grease being thicker on the sides corresponding to the spray valve and thinner on the other side, resulting in poor uniformity.

[0004] Based on this, a special machine for automatically spraying grease onto headrest bars is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic grease spraying machine for headrest rods. This machine allows a pair of spray valves to move at a constant speed along the headrest rod's trajectory while simultaneously rotating at a certain angle around the spraying end of the headrest rod to evenly spray the portion of the headrest rod to be coated, thereby improving product quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic grease spraying machine for headrest bars, comprising:

[0007] A support frame, wherein a clamping mechanism is provided on the support frame to clamp the headrest rod;

[0008] A frame is fixed to the support frame. Left and right linear modules are fixed on the frame. The output shafts of the left and right linear modules are fixed to inclined upper and lower linear modules. The output ends of the upper and lower linear modules are fixed to mounting frames. A pair of spray valves are arranged opposite each other on the mounting frames. After the headrest rod is limited by the clamping mechanism, the left and right linear modules adjust the position of the spray valves so that they are located on both sides of the spraying end of the headrest rod. The spray valves spray grease onto the spraying surface. The upper and lower linear modules operate the spray valves to move at a uniform speed along the trajectory of the headrest rod to spray evenly. The headrest rod is sprayed evenly on the part to be sprayed. After one spraying end of the headrest rod is completed, the left and right linear modules can drive the spray valves to move to both sides of the other spraying end of the headrest rod. Repeat the previous operation to complete the spraying of the entire spraying part of the headrest rod.

[0009] A U-shaped plate is bolted to the front of the mounting bracket. A forward and reverse motor is fixed to the U-shaped plate. A movable plate is fixed to the output shaft of the forward and reverse motor. A pair of spray valves are set on the movable plate with adjustable spacing. When the forward and reverse motor is started, the output shaft of the motor drives the movable plate to rotate, which allows the pair of spray valves to rotate around the spraying end of the headrest rod at a certain angle, so that the spraying on the outer circumference of the spraying end of the headrest rod is more uniform, thereby improving product quality.

[0010] Furthermore, a U-shaped frame is fixed to the front side of the movable plate. A threaded rod is rotatably installed inside the U-shaped frame via a bearing. A pair of mounting plates are threadedly connected to the outer circumference of the threaded rod. The spray valve is fixed to the corresponding mounting plate. A sliding rod is fixed to the mounting plate. A sliding groove is provided on the movable plate to slide in connection with the sliding rod. When the threaded rod rotates, under the guidance of the sliding rod and the sliding groove, the pair of mounting plates can drive the corresponding spray valves to move relative to each other or in opposite directions, thereby adjusting the distance between the pair of spray valves.

[0011] Furthermore, a worm wheel is fixed to the outer periphery of the threaded rod, and a worm that meshes with the worm wheel is rotatably mounted on the U-shaped frame via a bearing. By rotating the worm, the worm wheel drives the threaded rod to rotate.

[0012] Furthermore, the clamping mechanism includes a support platform fixed to the support frame. The front side of the support platform extends upward to form an abutment portion. A limiting groove is also provided on the top surface of the support platform. A U-shaped bracket is also fixed on the support frame. The top surfaces of both ends of the U-shaped bracket have support grooves. A pair of lifting and rotating cylinders located on both sides of the U-shaped bracket are provided on the support frame. The headrest rod is placed in the pair of support grooves, while the common end of the headrest rod is in the limiting groove, and its head abuts against the abutment portion. Then, the pair of lifting and rotating cylinders drive its pressing part to rotate above the headrest rod. The lifting and rotating cylinders retract, so that its pressing part presses the headrest rod into the support groove, completing the clamping and fixing of the headrest rod, so that it is not easy to shift during the spraying process and affect the spraying effect.

[0013] Furthermore, the support frame is provided with a baffle box with an open top surface and one side surface. The spraying area of ​​the headrest rod is located inside the baffle box. When the spray valve sprays grease onto the headrest rod, excess grease will be splashed into the baffle box and collected through the baffle box.

[0014] Furthermore, a movable frame is provided on the side of the support frame, and a pressure plate pump is provided on the movable frame. The pressure plate pump is connected to the spray valve through an oil circuit, and the pressure plate pump delivers lubricating oil to the spray valve.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. This automatic grease spraying machine for headrest rods adjusts the position of the spray valves via left and right linear modules, positioning them on both sides of the spraying end of the headrest rod. The up and down linear modules operate the spray valves to move uniformly along the headrest rod's trajectory for spraying. Simultaneously, the output shaft of the forward and reverse motor drives the movable plate to rotate, causing the pair of spray valves to rotate around the spraying end of the headrest rod at a certain angle, uniformly spraying the part of the headrest rod to be sprayed, thereby improving product quality. After spraying one end of the headrest rod is completed, the left and right linear modules can drive the spray valves to move to both sides of the other spraying end of the headrest rod, repeating the previous operation to complete the spraying of the entire headrest rod, resulting in better spraying efficiency.

[0017] 2. This automatic grease spraying machine for headrest rods places the headrest rod into a pair of support grooves, while the common end of the headrest rod is in a limiting groove, with its head abutting part. Then, a pair of lifting and rotating cylinders drive the clamping part to rotate above the headrest rod. The lifting and rotating cylinders retract, causing the clamping part to press the headrest rod into the support groove, thus clamping and fixing the headrest rod, making it less likely to shift during the spraying process and affect the spraying effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the spray valve and the mounting bracket of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the headrest rod in this utility model.

[0022] In the diagram: 1. Support frame; 2. Frame; 3. Left and right linear modules; 4. Up and down linear modules; 5. Mounting frame; 6. Spray valve; 8. U-shaped plate; 9. Forward and reverse motor; 10. Movable plate; 11. U-shaped frame; 12. Threaded rod; 13. Mounting plate; 14. Slide rod; 15. Slide groove; 16. Worm gear; 17. Worm; 18. Support platform; 19. Abutment part; 20. Limiting groove; 21. U-shaped bracket; 22. Support groove; 23. Lifting rotary cylinder; 24. Baffle box; 25. Support bar; 26. Moving frame; 27. Pressure plate pump. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This embodiment of an automatic grease spraying machine for headrest bars includes a support frame 1. The support frame 1 is equipped with a clamping mechanism for holding the headrest bar, which is used to restrict the headrest bar to the support frame 1. A frame 2 is also fixed on the support frame 1. A left and right linear module 3 is fixed on the frame 2. An inclined upper and lower linear module 4 is fixed to the output shaft of the left and right linear module 3. The inclination angle of the upper and lower linear module 4 is the same as the inclination angle of the bent part of the headrest bar. Therefore, the upper and lower linear module 4 can drive its output end to move at a constant speed along the trajectory of the headrest bar, thereby achieving uniform spraying of the part of the headrest bar to be sprayed. A mounting frame 5 is fixed to the output end of the upper and lower linear module 4. A pair of spray valves 6 are provided on the mounting frame 5, which are arranged opposite each other, for spraying grease onto the headrest bar restricted to the support frame 1.

[0025] After the headrest rod is limited by the clamping mechanism, the left and right linear modules 3 adjust the position of the spray valve 6 so that it is located on both sides of the spraying end of the headrest rod. The spray valve 6 sprays lubricating grease onto the spraying surface. The up and down linear modules 4 operate the spray valve 6 to move at a uniform speed along the trajectory of the headrest rod to spray evenly on the part of the headrest rod to be sprayed. After one spraying end of the headrest rod is completed, the left and right linear modules 3 can drive the spray valve 6 to move to both sides of the other spraying end of the headrest rod. Repeat the previous operation to complete the spraying of the entire headrest rod.

[0026] During spraying, since the spraying area of ​​the headrest bar is the entire outer circumference, but the spraying range of a pair of spray valves 6 is limited, if oil is sprayed directly on both sides of the headrest bar, the oil on the left and right sides of the headrest bar may be thicker, while the oil on the front and back sides may be thinner, resulting in poor uniformity. Therefore, in this embodiment, the pair of spray valves 6 can also be rotated around the end of the headrest bar by a certain angle, and can also be rotated and swung by a certain angle when moving up and down along the trajectory of the headrest bar, so that the oil sprayed in the spraying area has better uniformity.

[0027] As for how to implement it, as a preferred embodiment, such as Figure 2 As shown, a U-shaped plate 8 is fixed to the front side of the mounting bracket 5 by bolts. A forward and reverse motor 9 is fixed on the U-shaped plate 8. A movable plate 10 is fixed to the output shaft of the forward and reverse motor 9. A pair of spray valves 6 are set on the movable plate 10 and the spacing is adjustable.

[0028] When the forward and reverse motor 9 is started, the output shaft of the forward and reverse motor 9 drives the movable plate 10 to rotate, which causes a pair of spray valves 6 to rotate around the spraying end of the headrest rod at a certain angle, so that the spraying on the outer circumference of the spraying end of the headrest rod is more even, thereby improving product quality.

[0029] To adjust the spacing between the pair of spray valves 6, a U-shaped frame 11 is fixed to the front of the movable plate 10. A threaded rod 12 is rotatably mounted inside the U-shaped frame 11 via a bearing. A pair of mounting plates 13 are threadedly connected to the outer circumference of the threaded rod 12, with opposite thread directions on the inner sides of the mounting plates 13. The spray valves 6 are fixed to the corresponding mounting plates 13. A sliding rod 14 is fixed to the mounting plate 13. A sliding groove 15 is provided on the movable plate 10, which slidably connects to the sliding rod 14. The sliding rod 14 and the sliding groove 15 are positioned to limit the movement of the sliding groove 15. Under these conditions, the mounting plate 13 can only move linearly relative to or away from the outer periphery of the threaded rod 12. A worm gear 16 is fixed on the outer periphery of the threaded rod 12. A worm 17 that meshes with the worm gear 16 is rotatably mounted on the U-shaped frame 11 via a bearing. By rotating the worm 17, the worm gear 16 drives the threaded rod 12 to rotate. Under the guidance of the slide rod 14 and the slide groove 15, a pair of mounting plates 13 can respectively drive the corresponding spray valves 6 to move relative to or away from each other, thereby adjusting the distance between the pair of spray valves 6.

[0030] In addition, the U-shaped plate 8 has a strip hole, through which bolts pass and lock the U-shaped plate 8 onto the mounting bracket 5. The installation height of the U-shaped plate 8 on the mounting bracket 5 can be finely adjusted according to actual working needs.

[0031] In this embodiment, the clamping mechanism can be used to position the headrest rod, making it less prone to displacement during spraying and affecting the spraying effect. This is a preferred embodiment. Figure 1 , Figure 3As shown, the clamping mechanism includes a support platform 18 fixed on the support frame 1. The front side of the support platform 18 extends upward to form an abutment portion 19. The top surface of the support platform 18 is also provided with a limiting groove 20. The bent part of the headrest rod is placed in the limiting groove 20, and the front side of the bent part abuts against the abutment portion 19. A U-shaped bracket 21 is also fixed on the support frame 1. The top surfaces of both ends of the U-shaped bracket 21 have support grooves 22. The openings on both sides of the support groove 22 are inclined outward to form guide portions, so that the rod part of the headrest rod is guided into the support groove 22 and supported by the support groove 22. A pair of lifting and rotating cylinders 23 located on both sides of the U-shaped bracket 21 are provided on the support frame 1, which can be used to press the rod part of the headrest rod into the support groove 22.

[0032] In practical use, the headrest rod is placed in a pair of support grooves 22, while the common end of the headrest rod is in the limiting groove 20, and its head abuts against the abutment part 19. Then, a pair of lifting and rotating cylinders 23 drive the clamping part to rotate above the headrest rod. The lifting and rotating cylinders 23 retract, so that the clamping part presses the headrest rod into the support groove 22, thus completing the clamping and fixing of the headrest rod, making it less likely to shift during the spraying process and affect the spraying effect.

[0033] The support frame 1 is provided with a baffle box 24 with an open top surface and one side surface. The spraying area of ​​the headrest rod is located inside the baffle box 24. When the spray valve 6 sprays grease onto the headrest rod, excess grease will be splashed into the baffle box 24 and collected through the baffle box 24. A pair of support bars 25 are fixed on the support frame 1. The opposite surfaces of the pair of support bars 25 have grooves for the installation of the baffle box 24.

[0034] Specifically, the baffle box 24 is placed on the groove of a pair of support bars 25, and then the headrest bar is positioned. After positioning, the headrest bar can be sprayed with grease by the spray valve 6, and the excess grease will be splashed into the baffle box 24 and collected through the baffle box 24.

[0035] In addition, a movable frame 26 is provided on the side of the support frame 1. A pressure plate pump 27 is provided on the movable frame 26 to deliver lubricating fluid to the spray valve 6. The pressure plate pump 27 and the spray valve 6 are connected through an oil circuit. The specific connection method is known technology and will not be described in detail here.

[0036] In summary, in use, the headrest rod is placed in a pair of support grooves 22, while the common end of the headrest rod is in the limiting groove 20, with its head abutting the contact part 19. A pair of lifting rotary cylinders 23 then drive the clamping part to rotate above the headrest rod. The lifting rotary cylinders 23 retract, pressing the headrest rod against the support grooves 22, thus clamping and fixing the headrest rod. The oil is then pressurized by the pressure plate pump 27 and enters the high-pressure oil pipe into the spray valve 6, and then passes through the left and right linear modules 3. Adjust the position of the spray valve 6 so that it is located on both sides of the spraying end of the headrest rod. Then, the upper and lower linear modules 4 operate the spray valve 6 to move at a constant speed along the trajectory of the headrest rod to spray. At the same time, the output shaft of the forward and reverse motor 9 drives the movable plate 10 to rotate, so that the pair of spray valves 6 rotate around the spraying end of the headrest rod at a certain angle to spray the part of the headrest rod to be sprayed evenly. After the spraying of one spraying end of the headrest rod is completed, the left and right linear modules 3 can drive the spray valve 6 to move to both sides of the other spraying end of the headrest rod. Repeat the previous operation to complete the spraying of the entire spraying part of the headrest rod.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special machine for automatically spraying lubricating grease onto headrest rods, characterized in that, include: Support frame (1), the support frame (1) is provided with a clamping mechanism for clamping the headrest rod; A frame (2) is fixed on the support frame (1). A left and right linear module (3) is fixed on the frame (2). An inclined upper and lower linear module (4) is fixed on the output shaft of the left and right linear module (3). A mounting frame (5) is fixed on the output end of the upper and lower linear module (4). A pair of spray valves (6) are arranged opposite to each other on the mounting frame (5). A U-shaped plate (8) is fixed to the front side of the mounting bracket (5) by bolts. A forward and reverse motor (9) is fixed on the U-shaped plate (8). A movable plate (10) is fixed to the output shaft of the forward and reverse motor (9). A pair of spray valves (6) are set on the movable plate (10) and the spacing is adjustable.

2. The automatic grease spraying machine for headrest rods according to claim 1, characterized in that: A U-shaped frame (11) is fixed to the front side of the movable plate (10). A threaded rod (12) is rotatably installed inside the U-shaped frame (11) via a bearing. A pair of mounting plates (13) are threadedly connected to the outer circumference of the threaded rod (12). The spray valve (6) is fixed on the corresponding mounting plate (13). A sliding rod (14) is fixed on the mounting plate (13). A sliding groove (15) is provided on the movable plate (10) to slide in connection with the sliding rod (14).

3. The automatic grease spraying machine for headrest rods according to claim 2, characterized in that: The outer periphery of the threaded rod (12) is fixed with a worm wheel (16), and the U-shaped frame (11) is rotatably mounted with a worm (17) that meshes with the worm wheel (16) via a bearing.

4. The automatic grease spraying machine for headrest rods according to claim 1, characterized in that: The clamping mechanism includes a support platform (18) fixed on the support frame (1). The front side of the support platform (18) extends upward to form an abutment part (19). The top surface of the support platform (18) is also provided with a limiting groove (20). A U-shaped bracket (21) is also fixed on the support frame (1). The top surfaces of both ends of the U-shaped bracket (21) have support grooves (22). A pair of lifting and rotating cylinders (23) located on both sides of the U-shaped bracket (21) are provided on the support frame (1).

5. The automatic grease spraying machine for headrest rods according to claim 1, characterized in that: The support frame (1) is provided with a baffle box (24) with an open top surface and one side surface, and the spraying area of ​​the headrest rod is located inside the baffle box (24).

6. The automatic grease spraying machine for headrest rods according to claim 1, characterized in that: A movable frame (26) is provided on the side of the support frame (1), and a pressure plate pump (27) is provided on the movable frame (26). The pressure plate pump (27) is connected to the spray valve (6) through an oil circuit.

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