A silent tire padding mechanism and automatic production device

Abstract

This invention relates to a silent tire applicator and an automated production device. The applicator is built on a frame, and the automated production device includes: a tire clamping and positioning unit, a sponge centering baffle unit, an adhesive dispensing and rolling unit, and a main control unit. The main control unit uses a PLC as the control terminal and also includes an operable touch screen panel, buttons, and indicator lights. The PLC control outputs are connected to the control circuits of servo motors, forward and backward servo cylinders, servo cylinders, sponge rolling servo cylinders, dispensing valves, pumps, and lifting cylinders. The PLC is customized according to the process to realize the sequential operation of tire clamping and positioning, sponge centering baffle adjustment, and adhesive dispensing and rolling. This invention's production device replaces traditional manual adjustment with mechanized adjustment, which not only improves accuracy but also provides faster work efficiency, achieving better uniformity and precision in applying adhesive to the inside of the tire.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to a silent tire padding mechanism and automatic production device. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. They are typically mounted on metal rims, supporting the vehicle body, cushioning external impacts, ensuring contact with the road surface, and guaranteeing vehicle performance. Tires are often used under complex and harsh conditions, enduring various deformations, loads, forces, and extreme temperatures during driving. Furthermore, the development of new energy vehicles has led to demands for tires with higher load-bearing capacity, traction, cushioning performance, and reduced tire noise.

[0003] The existing technology CN115891243A mentions a method and system for applying sound-absorbing cotton to the inner wall of a tire. The method includes: placing the tire on a support that can drive the tire to rotate; providing a first adhesive applicator for applying a layer of adhesive to the inner wall of the tire; providing a bonding assembly that drives the tire to rotate and cooperates with the bonding assembly to bond the sound-absorbing cotton to the adhesive on the inner wall of the tire; and providing a joint finishing device for tightly connecting the head and tail of the sound-absorbing cotton.

[0004] The bonding components are horizontally assembled, which cannot adapt to different tire specifications. Furthermore, the operating principle and structure of the first adhesive application device are not explained, and the precision requirements for adhesive spraying are unclear.

[0005] Furthermore, tire noise, as a factor affecting driving quality, requires an automated tire patching process during the optimization of automotive parts. Existing process technologies and supporting production equipment lack customizable and modular designs. There is also a need to improve automated production efficiency, use less manual or unmanned solutions, and ensure upgrade and iteration capabilities. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a silent tire patching mechanism, the patching mechanism being built on a frame and comprising:

[0007] A tire clamping and positioning unit includes a base plate, on which a support frame is mounted. The support frame is located on both sides of the base plate, and a linear guide rail I is mounted on the support frame. A left-right adjustment shaft is provided on the inner side of one side of the support frame. A servo-powered roller is located at the center line of the base plate, perpendicular to the support frame. A support roller is provided on the support frame, and both ends of the support roller are mounted on a displacement scale. The displacement scale is fixed on the linear guide rail I, and a front-rear adjustment shaft is mounted on the displacement scale. An adjustment bracket is mounted on the front-rear adjustment shaft, and a front-rear limit roller is mounted on the adjustment bracket. A servo motor is mounted on the end of the servo-powered roller away from the left-right adjustment shaft, and bearing seats are provided at both ends. Power is provided by the servo motor to allow the tire to rotate.

[0008] The dispensing and spraying rolling unit includes a dispensing and spraying module and a lower dispensing module. The dispensing and spraying module includes a horizontal table, on which a dispensing and rolling advance / retreat cylinder is installed. A linear guide rail III is installed on the side of the dispensing and rolling advance / retreat cylinder, and a worktable II is installed on the linear guide rail III. A servo electric cylinder II is installed on the worktable II, and a sponge rolling servo electric cylinder is installed on one side of the servo electric cylinder II. A glue spraying assembly is installed at the bottom of the servo electric cylinder II, and a dispensing valve is installed on the glue spraying assembly. A sponge rolling cylinder is installed at the bottom of the sponge rolling servo electric cylinder. The lower dispensing module includes a pump, on which a lifting platform II is sleeved. Lifting cylinders are installed on both sides of the bottom of the lifting platform II. A glue barrel pressing piston is installed at the bottom of the pump. A pressure gauge is installed on one side of the lifting platform II, and a filter valve is installed on one side of the pump.

[0009] In one embodiment of the present invention, the tire clamping and positioning unit and the glue spraying and rolling unit of the cotton applicator are further provided with:

[0010] The sponge centering baffle unit includes a horizontal tabletop, a support leg at the bottom of the horizontal tabletop, a lifting platform I on the support leg, a lifting machine on the top of the lifting platform I, an adjusting handwheel on the lifting machine, a bracket I at one end of the horizontal tabletop, a linear guide rail II on the bracket I, a feed shaft between the linear guide rails II, a forward / backward servo cylinder on the feed shaft, a worktable on the feed shaft, a servo cylinder I on the worktable, and a cotton-applying baffle on the servo cylinder I.

[0011] The main control unit uses a PLC as the control terminal and also includes a touch screen panel and button indicator lights. The touch screen panel and button indicator lights are both located on the profile outer frame of the machine frame. The PLC communicates with the touch screen panel and button indicator lights through information input and output terminals. Therefore, the PLC control output terminals are all connected to the control circuit terminals of the power components such as servo motors, forward and backward servo cylinders, servo cylinder I, servo cylinder II, sponge rolling servo cylinders, dispensing valves, pumps, and lifting cylinders.

[0012] In one embodiment of the present invention, a left-right adjustment shaft is provided with a left-right adjustment handwheel at one end and bearing seats at both ends, the handwheel facilitating adjustment of the left-right position of the displacement scale; there are two front-back adjustment shafts, symmetrically distributed along the center line of the substrate, with a front-back adjustment handwheel at one end and bearing seats at both ends, the handwheel facilitating adjustment of the front-back position of the adjustment bracket; there are two support rollers, symmetrically distributed along the center line of the substrate, with bearing seats at both the front and rear, the symmetrical distribution of the support rollers restricting the left-right degrees of freedom of the tire.

[0013] In one embodiment of the present invention, the bottom of the left and right adjustment shafts and the front and rear adjustment shafts are provided with telescopic rods; the support rollers and the front and rear limiting rollers are both non-powered rollers, which not only limit the movement but also facilitate the rotation of the tires.

[0014] In one embodiment of the present invention, the support legs and the bracket I are respectively located at both ends of the horizontal tabletop, which can make more reasonable use of the horizontal tabletop space while also taking into account the counterweight issue, so that the center of gravity is centered and more stable; the support legs are telescopic support legs, which are fixed on the bottom of the lifting platform I, and the lifting platform I is fixed in place, while the height of the horizontal tabletop can be adjusted by turning the handwheel; the horizontal tabletop is rectangular, and there are four support legs, which are located at the four corners of the horizontal tabletop. The support legs adopt a telescopic structure, which can adjust the height of the horizontal tabletop and has better adaptability.

[0015] In one embodiment of the present invention, there are two brackets I and linear guide rails II, respectively located on both sides. The two brackets and linear guide rails can provide better stability to the worktable and ensure that it can maintain balance during movement. The cotton-applying baffles are centrally symmetrically distributed. The centrally symmetrical cotton-applying baffles can maintain the balance of the tire during the cotton-applying process and prevent the tire from being subjected to force on one side and losing control. The servo electric cylinder I and the forward and backward servo electric cylinders are perpendicularly distributed to each other. The perpendicularly distributed servo electric cylinders can ensure that the cotton-applying baffles can be adjusted to the appropriate working position.

[0016] In one embodiment of the present invention, there are two linear guide rails III, symmetrically distributed on both sides of the glue-coating roller advance and retraction cylinder. The two linear guide rails can provide better stability to the worktable and ensure that it can maintain balance during movement. The bottom of the linear guide rail III is provided with a bracket II, so that the height of the linear guide rail is higher than the top of the glue-coating roller advance and retraction cylinder. The height of the linear guide rail is higher than the glue-coating roller advance and retraction cylinder, which can ensure that the worktable can move back and forth smoothly.

[0017] In one embodiment of the present invention, the dispensing valve and the spraying assembly are arranged in an L-shape. The L-shape arrangement can avoid occupying the space of the cylinder and make the space utilization more reasonable. A manual control valve is provided on the top of one side of the lifting cylinder. The manual control valve is used to adjust the height of the lifting platform II, thereby meeting the requirements of more working heights. The dispensing valve and the pump are connected by a hose. The servo electric cylinder II and the sponge rolling servo electric cylinder are arranged in parallel. The two parallel electric cylinders can work simultaneously without interfering with each other.

[0018] This invention also discloses an automated production apparatus for silent tires, according to... The above Any of the aforementioned cotton-applying mechanisms is used in a production line for silent tires.

[0019] Compared with the prior art, the above-mentioned technical solution of the present invention has the following advantages: The cotton-applying mechanism and automatic production device of the present invention are equipped with a tire clamping and positioning unit, which can limit the tire in all directions without affecting the tire rotation, thus facilitating automated production; the cotton-applying baffle after centering can make room for the gap between the tire and the sponge to be applied on the inner side, and the mechanical adjustment replaces the traditional manual adjustment, which not only improves the accuracy but also has a faster working efficiency; adjusting the position and height of the sponge roller and the glue dispensing mechanism can achieve glue application to the inside of the tire, thereby improving the uniformity of the application and ensuring the accuracy and strength of the adhesion. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the silent tire automatic production device of the present invention;

[0022] Figure 2 This is a schematic diagram of the tire clamping and positioning unit described in this invention;

[0023] Figure 3 This is a front view of the tire clamping and positioning unit described in this invention;

[0024] Figure 4 This is a top view of the tire clamping and positioning unit described in this invention;

[0025] Figure 5 This is a schematic diagram of the structure of the sponge-centered baffle unit described in this invention;

[0026] Figure 6 This is a front view of the sponge-centered baffle unit described in this invention;

[0027] Figure 7 This is a top view of the sponge-centered baffle unit described in this invention;

[0028] Figure 8 This is a side view of the sponge-centered baffle unit described in this invention;

[0029] Figure 9 This is a schematic diagram of the dispensing and spraying module in the dispensing and spraying rolling unit of the present invention;

[0030] Figure 10 This is a top view of the dispensing and spraying module described in this invention;

[0031] Figure 11 This is a side view of the dispensing and spraying module described in this invention;

[0032] Figure 12 This is a schematic diagram of the dispensing lower module in the dispensing spraying and rolling unit of the present invention;

[0033] Figure 13 This is a front view of the dispensing lower module described in this invention.

[0034] As shown in the figure: 101, base plate; 102, support frame; 103, linear guide rail I; 104, left and right adjustment shaft; 105, servo power roller; 106, support roller; 107, displacement scale; 108, front and rear adjustment shaft; 109, adjustment bracket; 1010, front and rear limit roller; 1011, servo motor; 1012, bearing seat; 1013, left and right adjustment handwheel; 1014, front and rear adjustment handwheel.

[0035] 201. Horizontal tabletop; 202. Support leg; 203. Lifting platform I; 204. Lifting machine; 205. Adjusting handwheel; 206. Bracket I; 207. Linear guide rail II; 208. Feed axis; 209. Forward and backward servo cylinder; 2010. Worktable I; 2011. Servo cylinder I; 2012. Cotton-applying baffle.

[0036] 302. Glue application roller advance and retract cylinder; 303. Linear guide rail III; 304. Worktable II; 305. Servo electric cylinder II; 306. Sponge roller servo electric cylinder; 307. Glue spraying assembly; 308. Dispensing valve; 309. Sponge roller cylinder; 3010. Pump; 3011. Lifting platform II; 3012. Lifting cylinder; 3013. Glue barrel pressing piston; 3014. Pressure gauge; 3015. Filter valve; 3016. Bracket II; 3017. Manual control valve.

[0037] 401. Touchscreen panel; 402. Button indicator lights. Detailed Implementation

[0038] like Figures 1 to 13As shown, this embodiment provides a silent tire patching mechanism and an automatic production device. The patching mechanism is built on a frame, and the automatic production device includes a patching mechanism, a sponge centering baffle unit, and a main control unit. The patching mechanism also includes a tire clamping and positioning unit and an adhesive spraying and rolling unit.

[0039] A tire clamping and positioning unit includes a base plate 101, on which a support frame 102 is mounted. The support frame 102 is located on both sides of the base plate 101. A linear guide rail I 103 is mounted on the support frame 102. A left-right adjustment shaft 104 is provided on the inner side of one side of the support frame 102. A servo-powered roller 105 is provided at the center line of the base plate 101, perpendicular to the support frame 102. A support roller 106 is provided on the support frame 102. Both ends of the support roller 106 are mounted on a displacement scale 107, which is fixed to the linear guide rail I 103. A front-rear adjustment shaft 108 is mounted on the displacement scale 107. An adjustment bracket 109 is mounted on the front-rear adjustment shaft 108, and a front-rear limiting roller 1010 is mounted on the adjustment bracket 109. A servo motor 1011 is mounted on the end of the servo-powered roller 105 away from the left-right adjustment shaft 104. Both ends are provided with bearing seats 1012. Power is provided by the servo motor to allow the tire to rotate.

[0040] The left and right adjustment shaft 104 has a left and right adjustment handwheel 1013 at one end and a bearing seat 1012 at both ends. The handwheel facilitates the adjustment of the left and right position of the displacement scale. There are two front and rear adjustment shafts 108, which are symmetrically distributed along the center line of the base plate 101. One end of the front and rear adjustment shaft 108 has a front and rear adjustment handwheel 1014 and a bearing seat 1012 at both ends. The handwheel facilitates the adjustment of the front and rear position of the adjustment bracket. There are two support rollers 106, which are symmetrically distributed along the center line of the base plate 101. Both the front and rear rollers are equipped with bearing seats 1012. The symmetrical distribution of the support rollers restricts the left and right degrees of freedom of the tire.

[0041] The bottom of the left and right adjustment shaft 104 and the front and rear adjustment shaft 108 are both equipped with telescopic rods; the support roller 106 and the front and rear limit rollers 1010 are both non-powered rollers. The non-powered rollers are used for limiting the position and also facilitate the rotation of the tire.

[0042] The tire clamping and positioning unit is positioned in the horizontal direction: one servo-powered roller 105, one end of the servo-powered roller 5 is servo motor 1011; two unpowered support rollers 106.

[0043] All rollers have bearing seats 1012 at both ends and are based on a base plate 101. The unpowered support roller 106 is connected to the base plate 101 by a support frame 102 with raised pads and a linear guide rail I 103 assembly.

[0044] The lower end face of the bearing housing 1012 is provided with a telescopic rod, and the spacing between the unpowered support rollers 106 can be adjusted using the left and right adjustment handwheel 1013 to accommodate tires of different sizes.

[0045] Vertical positioning: two pairs of front and rear tire limiting rollers 1010; the distance is adjusted by front and rear adjusting handwheels 1014 to adapt to the width of the tire. The front and rear limiting rollers 1010 are connected to the telescopic rod supported by the front and rear adjusting handwheels 1014 through adjusting brackets 109. At the same time, there are bearing seats at both ends of the telescopic rod.

[0046] On the other hand, the sponge centering baffle unit includes a horizontal tabletop 201, a support leg 202 at the bottom of the horizontal tabletop 201, a lifting platform I 203 on the support leg 202, a lifting machine 204 on the top of the lifting platform I 203, an adjusting handwheel 205 on the lifting machine 204, a bracket I 206 at one end of the horizontal tabletop 201, a linear guide rail II 207 on the bracket I 206, a feed shaft 208 between the linear guide rails II 207, a forward / backward servo cylinder 209 on the feed shaft 208, a worktable I 2010 on the feed shaft 208, a servo cylinder I 2011 on the worktable I 2010, and a cotton-applying baffle 2012 on the servo cylinder I 2011.

[0047] Meanwhile, the support leg 202 and the bracket I 206 are respectively located at both ends of the horizontal tabletop 201, which can make more reasonable use of the horizontal tabletop space, while also taking into account the counterweight issue, so that the center of gravity is centered and more stable; the support leg 202 is a telescopic support leg, which is fixed on the bottom part of the lifting platform I 203. The lifting platform I is fixed and can be adjusted by turning the handwheel.

[0048] The horizontal tabletop 201 is rectangular, and there are four support legs 202, which are located at the four corners of the horizontal tabletop 201. The support legs adopt a telescopic structure, which can adjust the height of the horizontal tabletop and has better adaptability.

[0049] There are two brackets I206 and two linear guides II207, which are located on both sides. The two brackets and the linear guides can provide better stability to the worktable and ensure that it can maintain balance during movement.

[0050] The cotton-applying baffles 2012 are centrally symmetrically distributed. The centrally symmetrical cotton-applying baffles can maintain the balance of the tire during the cotton-applying process and prevent the tire from being subjected to force on one side and losing control. The servo electric cylinder I 2011 and the forward and backward servo electric cylinder 209 are perpendicularly distributed to each other. The perpendicularly distributed servo electric cylinders can ensure that the cotton-applying baffles 2012 can be adjusted to a suitable working position.

[0051] The degrees of freedom of the sponge-centered baffle unit are the forward and backward movement in the height and depth directions;

[0052] In the height direction, a worm gear lifting manual adjustment handwheel 205 is used to give the horizontal table 201 the freedom to move up and down. At the same time, the servo electric cylinder I 2011 on the horizontal table 201 can make the height of the cotton-applying baffle finely adjusted to achieve higher precision.

[0053] In the depth direction, the cotton-applying baffle 2012 can be extended into the inside of the tire by using the forward and backward servo electric cylinder 209 and linear guide II 207.

[0054] The dispensing and spraying rolling unit includes a dispensing module and a lower dispensing module. The dispensing module includes a horizontal tabletop 201, on which a dispensing and rolling advance / retreat cylinder 302 is mounted. A linear guide rail Ⅲ 303 is mounted on the side of the dispensing and rolling advance / retreat cylinder 302. A worktable Ⅱ 304 is mounted on the linear guide rail Ⅲ 303. A servo cylinder Ⅱ 305 is mounted on the worktable Ⅱ 304. A sponge rolling servo cylinder 306 is located on one side of the servo cylinder Ⅱ 305. 5. A glue spraying assembly 307 is installed at the bottom. A glue spraying assembly 307 is equipped with a glue dispensing valve 308. A sponge rolling servo electric cylinder 306 is installed at the bottom with a sponge rolling cylinder 309. The glue dispensing lower module includes a pump 3010. A lifting platform II 3011 is sleeved on the bottom of the pump 3010. Lifting cylinders 3012 are installed on both sides of the bottom of the lifting platform II 3011. A glue barrel pressing piston 3013 is installed at the bottom of the pump 3010. A pressure gauge 3014 is installed on one side of the lifting platform II 3011. A filter valve 3015 is installed on one side of the pump 3010.

[0055] There are two linear guide rails Ⅲ303, which are symmetrically distributed on both sides of the glue application and rolling cylinder 302. The two linear guide rails can provide better stability to the worktable and ensure that it can maintain balance during movement.

[0056] The linear guide rail Ⅲ303 is equipped with a bracket Ⅱ3016 at its bottom, so that the height of the linear guide rail is higher than the top of the glue-coating and rolling cylinder 302. The height of the linear guide rail being higher than the glue-coating and rolling cylinder 302 can ensure that the worktable can move smoothly back and forth.

[0057] The dispensing valve 8 and the glue spraying assembly 307 are arranged in an L-shape. The L-shape arrangement can avoid occupying the space of the cylinder, making the use of space more reasonable.

[0058] A manual control valve 3017 is provided on the top of one side of the lifting cylinder 3012. The manual control valve is used to adjust the height of the lifting platform II, thereby meeting the requirements of more working heights.

[0059] A flexible hose is provided between the dispensing valve 308 and the pump 3010.

[0060] The servo electric cylinder II 305 and the sponge rolling servo electric cylinder 306 are distributed in parallel, and the two parallel electric cylinders can work simultaneously without interfering with each other.

[0061] The dispensing module includes a glue spraying assembly 307, a dispensing valve 308, and a glue application roller advance / retreat cylinder 302, all assembled on a horizontal tabletop 201. It also includes a linear slide rail 303 and a base assembly, a glue bucket pressing piston 3013, a lifting cylinder 3012, a pump 3010, a pressure gauge 3014, a manual control valve 3017, a filter valve 3015, and a sponge roller cylinder 309.

[0062] The dispensing valve 308 and pump 3010 are connected by a hose. After the glue spraying assembly 307 sprays glue through the servo cylinder II 305, the sponge roller 309 on one side can press the sponge inside the tire by moving up and down through the dedicated sponge roller servo cylinder 306. Then, as the tire rotates, the sponge roller 9 can perform the process of dispensing and pressing all the sponges in the inner ring of the tire.

[0063] The main control unit uses a PLC as the control terminal and also includes an operable touch screen panel 401 and button indicator lights 402. The touch screen panel 401 and button indicator lights 402 are both located on the profile outer frame of the machine frame. The PLC is connected to the touch screen panel 401 and button indicator lights 402 through information input and output terminals. Therefore, the control output terminals of the PLC are all connected to the control circuit terminals of the power components such as servo motor 1011, forward and backward servo cylinder 209, servo cylinder I 2011, servo cylinder II 305, sponge rolling servo cylinder 306, dispensing valve 308, pump 3010, and lifting cylinder 3012.

[0064] The process utilizes a PLC customized according to the process to realize the sequential operation of tire clamping and positioning, sponge centering baffle adjustment, and glue spraying and rolling.

[0065] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A silent tire padding mechanism, wherein the padding mechanism is built on a frame, characterized in that, include: A tire clamping and positioning unit includes a base plate (101), on which a support frame (102) is mounted. The support frames (102) are located on both sides of the base plate (101). A linear guide rail (103) is mounted on the support frame (102). A left-right adjustment shaft (104) is provided on the inner side of one side of the support frame (102). A servo-powered roller (105) is provided at the center line of the base plate (101) perpendicular to the support frame (102). A support roller (106) is provided on the support frame (102). The two ends of the support roller (106) are mounted on the displacement scale (107), the displacement scale (107) is fixed on the linear guide rail I (103), the displacement scale (107) is mounted with a front and rear adjustment shaft (108), the front and rear adjustment shaft (108) is mounted with an adjustment bracket (109), and the adjustment bracket (109) is mounted with a front and rear limit roller (1010); the servo power roller (105) is mounted with a servo motor (1011) at the end away from the left and right adjustment shaft (104), and bearing seats (1012) are provided at both ends; The dispensing and spraying rolling unit includes a dispensing and spraying module and a dispensing lower module. The dispensing and spraying module includes a horizontal table (201), on which a dispensing and rolling advance / retreat cylinder (302) is installed. A linear guide rail (303) is installed on the side of the dispensing and rolling advance / retreat cylinder (302), and a worktable (304) is installed on the linear guide rail (303). A servo electric cylinder (305) is provided on the worktable (304), and a sponge rolling servo electric cylinder (306) is provided on one side of the servo electric cylinder (305). The bottom of the servo electric cylinder (305) is equipped with a sponge rolling servo electric cylinder (306). The device is equipped with a glue spraying assembly (307), a glue spraying valve (308) is installed on the glue spraying assembly (307), a sponge roller cylinder (309) is installed at the bottom of the sponge roller servo electric cylinder (306), the glue dispensing lower module includes a pump (3010), a lifting platform II (3011) is sleeved on the bottom of the pump (3010), lifting cylinders (3012) are provided on the bottom of both sides of the lifting platform II (3011), a glue barrel pressing piston (3013) is provided at the bottom of the pump (3010), a pressure gauge (3014) is provided on one side of the lifting platform II (3011), and a filter valve (3015) is provided on one side of the pump (3010).

2. The cotton-applying mechanism according to claim 1, characterized in that: The tire clamping and positioning unit and the glue spraying and rolling unit of the cotton-applying mechanism are further provided with: A sponge centering baffle unit includes a horizontal tabletop (201), a support leg (202) at the bottom of the horizontal tabletop (201), a lifting platform I (203) on the support leg (202), a lifting machine (204) on the top of the lifting platform I (203), an adjusting handwheel (205) on the lifting machine (204), a bracket I (206) at one end of the horizontal tabletop (201), a linear guide rail II (207) on the bracket I (206), a feed shaft (208) between the linear guide rails II (207), a forward and backward servo cylinder (209) on the feed shaft (208), a worktable I (2010) on the feed shaft (208), a servo cylinder I (2011) on the worktable I (2010), and a cotton-applying baffle (2012) on the servo cylinder I (2011). The main control unit uses a PLC as the control terminal and also includes a touch screen panel (401) and button indicator lights (402). The touch screen panel (401) and button indicator lights (402) are both located on the profile outer frame of the machine frame. The PLC is connected to the touch screen panel (401) and button indicator lights (402) through information input and output terminals respectively. The PLC control output terminal is connected to the servo motor (1011), forward and backward servo cylinder (209), servo cylinder I (2011), servo cylinder II (305), sponge rolling servo cylinder (306), dispensing valve (308), pump (3010), and lifting cylinder (3012) respectively through control lines.

3. The cotton-applying mechanism according to claim 1, characterized in that: The left and right adjustment shaft (104) is provided with a left and right adjustment handwheel (1013) at one end and a bearing seat (1012) at both ends; there are two front and rear adjustment shafts (108), which are symmetrically distributed along the center line of the base plate (101), and a front and rear adjustment handwheel (1014) is provided at one end of the front and rear adjustment shaft (108), and a bearing seat (1012) is provided at both ends; there are two support rollers (106), which are symmetrically distributed along the center line of the base plate (101), and a bearing seat (1012) is provided at both the front and rear.

4. The cotton-applying mechanism according to claim 1, characterized in that: The bottom of the left and right adjustment shaft (104) and the front and rear adjustment shaft (108) are both equipped with telescopic rods; the support roller (106) and the front and rear limit roller (1010) are both non-powered rollers.

5. The cotton-applying mechanism according to claim 2, characterized in that: There are two brackets I (206) and linear guides II (207), which are located on both sides; the cotton-applying baffles (2012) are centrally symmetrically distributed; the servo cylinder I (2011) and the forward and backward servo cylinders (209) are perpendicular to each other.

6. The cotton-applying mechanism according to claim 1, characterized in that: There are two linear guide rails Ⅲ (303), which are symmetrically distributed on both sides of the glue-coating and rolling cylinder (302); the bottom of the linear guide rail Ⅲ (303) is provided with a bracket Ⅱ (3016), so that the height of the linear guide rail is higher than the top of the glue-coating and rolling cylinder (302).

7. The cotton-applying mechanism according to claim 1, characterized in that: The dispensing valve (308) and the spraying assembly (307) are arranged in an L-shape; a hand control valve (3017) is provided on the top of one side of the lifting cylinder (3012); a hose is provided between the dispensing valve (308) and the pump (3010); the servo electric cylinder II (305) and the sponge rolling servo electric cylinder (306) are arranged in parallel.

8. An automatic production apparatus for silent tires, comprising a cotton-applying mechanism according to any one of claims 1 to 7, for use in a silent tire production line.

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