A chain varnishing equipment

Abstract

The present invention belongs to the field of chain dipping paint, specifically a chain dipping paint equipment, including a base, and a dipping paint box arranged at the front end of the top of the base. When the chain passes through a first bend pipe and a second bend pipe, since the first bend pipe and the second bend pipe are designed in an "S" shape, when the chain enters the first bend pipe, under the action of the first bend pipe, the chain will first bend in one direction, so that the connection point of the chain can be exposed, so that a cleaning component can fully contact one end of the connection point of the chain for cleaning. Afterwards, when the chain enters the second bend pipe, under the action of the second bend pipe, the chain will bend in another direction, so that the connection point of the chain can be exposed, so that the cleaning component can fully contact the other end of the connection point of the chain for cleaning. The bending of the chain exposes more of the connection of the chain, so that it is fully in contact with the cleaning component, ensuring the cleaning and rust removal operation of the cleaning component on the chain.

Description

Technical Field

[0001] The invention belongs to the field of chain varnish dipping, in particular to a chain varnish dipping device. Background Art

[0002] When the chain is exposed to the outdoors or in a humid environment, it is easy to be corroded by moisture, oxygen, etc., causing rust and corrosion. Therefore, it is necessary to use chain dipping equipment to dip the chain in paint. After dipping, a layer of paint film will form on the surface of the chain. The paint film is used to isolate the chain from direct contact with the external environment, preventing the intrusion of moisture and corrosive substances, thereby extending the service life of the chain.

[0003] The prior art also proposes some solutions. For example, a Chinese patent with authorization announcement number CN208757924U discloses a varnishing equipment for chain production, whose structure includes a device body, a support rod, and a dye tank. The application uses a combination of a rotating circle and an outer wheel inside the circle, so that the user can perform multiple cycles of varnishing on the chain.

[0004] During the production and processing of the chain, oil stains and waste chips are often attached to its exterior, and even part of the chain is rusted due to long-term storage or improper handling. If these oil stains, waste chips and rust are not treated, they will directly have a serious impact on the subsequent varnishing process.

[0005] To this end, the present invention provides a chain varnishing device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a chain paint dipping equipment described in the present invention includes a base, a paint dipping box arranged at the front end of the top of the base, and a chain discharge pipe arranged at the front of the paint dipping box, a chain bending assembly is arranged at the rear end of the top of the base, a cleaning assembly is arranged inside the chain bending assembly, an expansion assembly is arranged on the cleaning assembly, a driving assembly is arranged on the expansion assembly, and a tensioning assembly is arranged on the driving assembly.

[0008] Preferably, the chain bending assembly includes a first bent pipe arranged at the rear end of the top of the base, the first bent pipe is located at the rear end of the paint dipping box, a second bent pipe is arranged above the first bent pipe, the first bent pipe is connected to the second bent pipe, and a straight pipe body is fixed to one end of the bottom of the first bent pipe and one end of the top of the second bent pipe.

[0009] Preferably, the first curved pipe and the second curved pipe are both semi-circular in design, and the first curved pipe and the second curved pipe form an "S"-shaped design.

[0010] Preferably, the cleaning component includes a cleaning brush roller arranged at the top and bottom ends inside the first curved pipe and the second curved pipe and on both sides inside the straight pipe body, support frames are provided at both ends of the cleaning brush roller, the support frames are embedded in the first curved pipe, the second curved pipe and the straight pipe body, support blocks are provided in the support frames, and cleaning brush rollers are movably connected between the support blocks, and limiting grooves are provided at the top and bottom ends inside the first curved pipe and the second curved pipe and on both sides inside the straight pipe body.

[0011] Preferably, each cleaning roller corresponds to a limiting groove, and the cleaning roller can be moved into the limiting groove.

[0012] Preferably, the expansion component includes an expansion slot opened in the support frame, the support block is placed in the expansion slot, a spring is fixed inside the expansion slot, one end of the spring is fixedly connected to the support block, through slots are opened on both sides of the first bend pipe and the second bend pipe and on the top and bottom of the straight pipe body, the through slots are connected to the expansion slot, and the support block extends into the through slots.

[0013] Preferably, the expansion component further comprises guide grooves provided on both sides of the expansion slot, guide blocks are provided inside the guide grooves, and the guide blocks are fixed on both sides of the support block.

[0014] Preferably, the driving assembly includes a pulley arranged on the support block, the pulley is fixedly connected to the rotating shaft at one end of the brush roller, a connecting belt is arranged on the outside of the pulley, limiting pressure rods are arranged at both ends of the pulley, the limiting pressure rods are fixed on the support block, the limiting pressure rods are in contact with the connecting belt, a bracket is arranged on the pulley at the end of the connecting belt, the bracket is fixed on the support block, a motor is mounted on the bracket, and the rotating shaft of the motor is fixedly connected to the pulley.

[0015] Preferably, the outside of the pulley is provided with external teeth, the inside of the connecting belt is provided with internal teeth, and the pulley is meshed with the connecting belt.

[0016] Preferably, the tensioning assembly includes a tensioning wheel arranged at both ends of the connecting belt, an external tensioning belt is arranged on the outside of the tensioning wheel, the external tensioning belt is connected to the connecting belt, a connecting side plate is arranged at one end of the tensioning wheel, the connecting side plate is fixed to the support block, an adjusting groove is opened inside the connecting side plate, a movable block is arranged in the adjusting groove, the tensioning wheel is rotatably arranged on the movable block, a telescopic rod is installed at the end of the connecting side plate, the output end of the telescopic rod extends into the adjusting groove and is fixedly connected to the movable block.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A chain varnishing equipment according to the present invention is a chain that enters the first curved pipe from the straight pipe body at the bottom, then enters the second curved pipe from the first curved pipe, and finally is sent out from the straight pipe body at the end of the second curved pipe and discharged to the varnishing box for varnishing. When the chain passes through the first curved pipe, the second curved pipe and the straight pipe body, the cleaning component and the driving component are used to clean and remove rust on the chain that passes through. When the chain passes through the first curved pipe and the second curved pipe, since the first curved pipe and the second curved pipe are in an "S" shape, when the chain enters the first curved pipe, the chain is rusted in the first curved pipe. When used, the chain will first bend in one direction to expose the connection point of the chain, allowing the cleaning component to fully contact one end of the connection point of the chain for cleaning. Afterwards, when the chain enters the second curved pipe, under the action of the second curved pipe, the chain will bend in the other direction to expose the connection point of the chain, allowing the cleaning component to fully contact the other end of the connection point of the chain for cleaning. The bending of the chain exposes more of the connection of the chain, thereby fully contacting the cleaning component, ensuring the cleaning and rust removal operation of the chain by the cleaning component.

[0019] 2. The chain varnishing equipment described in the present invention passes through two cleaning brush rollers through a chain, and the two sides or the top and bottom of the chain apply an outward thrust to the cleaning brush roller to make the cleaning brush roller move outward, and the cleaning brush roller drives the supporting block to move in the through groove and the expansion groove and squeezes the spring to make it contract, and at the same time, the elastic force of the spring is used to push the supporting block back to make the cleaning brush roller fit closely with the outer wall of the passing chain, so that the cleaning brush roller and the chain are in close contact to perform cleaning and rust removal operations, thereby improving the applicability of the cleaning brush roller and making it applicable to chains of different sizes, and when the cleaning brush roller is moved by the side wall of the chain, the driving component used to drive the cleaning brush roller follows the movement, so as to ensure that the pulley and the connection The belt connection is stable. When the brush roller drives the pulley to move and the connecting belt is loose, the telescopic rod drives the movable block to move outward, and the tensioning wheel follows the movement and pulls the external tensioning belt to tension the connecting belt. When the brush roller drives the pulley to move and the connecting belt is gradually tightened, the telescopic rod drives the movable block to move inward, and the tensioning wheel follows the movement and slowly loosens the external tensioning belt to prevent the connecting belt from being over-tightened and breaking. The tensioning assembly is used to keep the connecting belt that follows the brush roller in a tensioned state at all times, thereby ensuring the connection between the pulley and the connecting belt, so that the driving assembly can provide stable driving force for the brush roller, and the movement of the brush roller will not affect the driving effect of the driving assembly on it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is the overall structural diagram of the present invention;

[0022] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0023] Figure 3 This is a partial structural section of the chain bending component in the invention Figure 1 ;

[0024] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 This is a partial structural section of the chain bending component in the invention Figure 2 ;

[0026] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0027] Figure 7 This is a partial structural section of the chain bending component in the invention Figure 3 ;

[0028] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0029] Fig. 9 is a cross-sectional view of the second elbow structure in the present invention;

[0030] Fig.10 yes Fig. 9 The enlarged view of point D in the middle;

[0031] Fig.11 yes Fig. 9 Enlarged view of point E in the middle;

[0032] In the figure: 1. base; 2. paint dipping box; 3. chain discharge pipe; 4. chain bending assembly; 41. first bend pipe; 42. second bend pipe; 43. straight pipe body; 5. cleaning assembly; 51. brush roller; 52. support frame; 53. support block; 54. limit groove; 6. extension assembly; 61. through groove; 62. extension groove; 63. spring; 64. guide groove; 65. guide block; 7. drive assembly; 71. pulley; 72. connecting belt; 73. limit pressure rod; 74. bracket; 75. motor; 8. tensioning assembly; 81. connecting side plate; 82. telescopic rod; 83. adjustment groove; 84. movable block; 85. tensioning wheel; 86. external tensioning belt. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 11As shown, a chain paint dipping device according to an embodiment of the present invention includes a base 1, a paint dipping box 2 arranged at the front end of the top of the base 1, and a chain discharge pipe 3 arranged at the front of the paint dipping box 2, a chain bending component 4 is arranged at the rear end of the top of the base 1, a cleaning component 5 is arranged inside the chain bending component 4, an extension component 6 is arranged on the cleaning component 5, a driving component 7 is arranged on the extension component 6, and a tensioning component 8 is arranged on the driving component 7.

[0035] During the production and processing of the chain, oil stains and scraps are often attached to its exterior, and even part of it is rusted due to long-term storage or improper handling. If these oil stains, scraps and rust are not treated, they will directly have a serious impact on the subsequent varnishing process;

[0036] The chain is sent into the chain bending component 4, the chain enters from the straight pipeline part of the chain bending component 4, then enters the curved pipeline, and finally is sent out from the straight pipeline. When the chain passes through the chain bending component 4, the cleaning component 5 and the driving component 7 are cooperated to clean and remove rust on the passing chain. When the chain passes through the curved pipeline, due to the "S"-shaped design of the curved pipeline, the chain will first bend in one direction to expose the connection point of the chain, so that the cleaning component 5 can fully contact with one end of the connection point of the chain for cleaning. After that, the chain will bend in the other direction to expose the connection point of the chain, so that the cleaning component 5 can fully contact with the other end of the connection point of the chain for cleaning. The bending of the chain exposes more of the connection of the chain, so that it is fully in contact with the cleaning component 5, ensuring the cleaning and rust removal operation of the chain by the cleaning component 5;

[0037] When the chain enters a straight pipeline, the cleaning components 5 are pushed outward on both sides of the chain, and the extension components 6 are used to expand the cleaning components 5 to leave space for the chain to enter, and the extension components 6 are used to make the cleaning components 5 fit tightly with both sides of the chain. When the chain enters a curved pipeline, the cleaning components 5 are pushed outward on the top and bottom of the chain, and the extension components 6 are used to expand the cleaning components 5 to leave space for the chain to enter, and the extension components 6 are used to make the cleaning components 5 fit tightly with both sides of the chain;

[0038] When the cleaning assembly 5 is moved by the side wall of the chain, the driving assembly 7 for driving the cleaning assembly 5 follows the movement. To ensure the stability of the connection between the belt and the wheel set, the tensioning assembly 8 is used to keep the driving assembly 7 following the movement of the cleaning assembly 5 in a tensioned state, and to provide a stable driving force for the cleaning assembly 5, so that the driving effect of the driving assembly 7 on it will not be affected by the movement of the cleaning assembly 5;

[0039] A sufficient amount of raw materials for dipping paint is poured into the dipping box 2 in advance. After the cleaned chain is discharged from the chain bending assembly 4, it is introduced into the raw materials for dipping paint in the dipping box 2, and then the chain that has been dipped in paint is discharged from the chain discharge pipe 3, so that the chain can be dipped in paint.

[0040] like Figures 1 to 3 As shown, the chain bending assembly 4 includes a first curved pipe 41 arranged at the rear end of the top of the base 1, the first curved pipe 41 is located at the rear end of the paint dipping box 2, a second curved pipe 42 is arranged above the first curved pipe 41, the first curved pipe 41 is connected to the second curved pipe 42, one end of the bottom of the first curved pipe 41 and one end of the top of the second curved pipe 42 are fixed with a straight pipe body 43, the first curved pipe 41 and the second curved pipe 42 are both semi-annular in design, and the first curved pipe 41 and the second curved pipe 42 form an "S" shape design.

[0041] The chain is sent into the chain bending assembly 4, and the chain enters the first curved pipe 41 from the straight pipe body 43 at the bottom, and then enters the second curved pipe 42 from the first curved pipe 41, and finally sent out from the straight pipe body 43 at the end of the second curved pipe 42, and discharged to the paint dipping box 2 for varnishing. When the chain passes through the first curved pipe 41, the second curved pipe 42 and the straight pipe body 43, the cleaning assembly 5 and the driving assembly 7 are used to clean and remove rust on the passing chain. When the chain passes through the first curved pipe 41 and the second curved pipe 42, due to the "S" shape design of the first curved pipe 41 and the second curved pipe 42, when the chain enters the first curved pipe 41, , under the action of the first curved pipe 41, the chain will first bend in one direction, so that the connection point of the chain can be exposed, so that the cleaning component 5 can fully contact with one end of the connection point of the chain for cleaning, and then, when the chain enters the second curved pipe 42, under the action of the second curved pipe 42, the chain will bend in the other direction, so that the connection point of the chain can be exposed, so that the cleaning component 5 can fully contact with the other end of the connection point of the chain for cleaning, and the bending of the chain exposes more of the connection of the chain, so that it can fully contact with the cleaning component 5, ensuring the cleaning and rust removal operation of the cleaning component 5 on the chain;

[0042] It should be noted here that the part of the chain that can bend needs to be extended into the first bend pipe 41 and the second bend pipe 42, and the direction that cannot be bent cannot be extended into the first bend pipe 41 and the second bend pipe 42 to bend. The purpose of such design is to ensure the effect of the first bend pipe 41 and the second bend pipe 42 on the chain so that it can bend.

[0043] like Figure 3 and Figure 4As shown, the cleaning component 5 includes a cleaning brush roller 51 arranged at the top and bottom ends inside the first curved tube 41 and the second curved tube 42 and on both sides inside the straight tube body 43, and support frames 52 are arranged at both ends of the cleaning brush roller 51, and the support frames 52 are embedded in the first curved tube 41, the second curved tube 42 and the straight tube body 43. Support blocks 53 are arranged in the support frames 52, and the cleaning brush rollers 51 are movably connected between the support blocks 53. Limiting grooves 54 are arranged at the top and bottom ends inside the first curved tube 41 and the second curved tube 42 and on both sides inside the straight tube body 43, and each cleaning brush roller 51 corresponds to a limiting groove 54, and the cleaning brush roller 51 can be moved into the limiting groove 54.

[0044] The chain passes between the cleaning rollers 51, and the cleaning rollers 51 are driven to rotate by the driving assembly 7. The cleaning rollers 51 rotating in the straight tube body 43 clean and remove rust on both sides of the chain passing through the straight tube body 43, and the cleaning rollers 51 rotating in the first curved tube 41 and the second curved tube 42 clean and remove rust on the top and bottom of the chain passing through the first curved tube 41 and the second curved tube 42.

[0045] like Figures 1 to 10 As shown, the extension component 6 includes an extension slot 62 opened in the support frame 52, the support block 53 is placed in the extension slot 62, a spring 63 is fixed inside the extension slot 62, one end of the spring 63 is fixedly connected to the support block 53, through slots 61 are opened on both sides of the first curved pipe 41 and the second curved pipe 42 and on the top and bottom of the straight pipe body 43, the through slot 61 is connected to the extension slot 62, the support block 53 extends into the through slot 61, the extension component 6 also includes guide slots 64 opened on both sides of the extension slot 62, guide blocks 65 are arranged inside the guide slot 64, and the guide blocks 65 are fixed on both sides of the support block 53.

[0046] When the chain enters the first curved pipe 41, the second curved pipe 42 and the straight pipe body 43, the chain passes between the two cleaning brush rollers 51, and the two sides or the top and bottom of the chain apply an outward thrust to the cleaning brush roller 51, so that the cleaning brush roller 51 moves outward, and the cleaning brush roller 51 drives the support block 53 to move in the through groove 61 and the expansion groove 62 and squeezes the spring 63 to shrink it. At the same time, the elastic force of the spring 63 is used to push the support block 53 back so that the cleaning brush roller 51 is tightly fitted with the outer wall of the passing chain, so that the cleaning brush roller 51 is in close contact with the chain to clean and remove rust. Among them, when the support block 53 moves in the expansion groove 62, it will drive the guide block 65 to slide in the guide groove 64. The guide groove 64 and the guide block 65 can guide the movement of the support block 53, making its movement more stable.

[0047] like Figures 1 to 11As shown, the driving assembly 7 includes a pulley 71 arranged on the support block 53, the pulley 71 is fixedly connected to the rotating shaft at one end of the brush roller 51, a connecting belt 72 is arranged on the outside of the pulley 71, and limiting pressure rods 73 are arranged at both ends of the pulley 71, the limiting pressure rods 73 are fixed on the support block 53, the limiting pressure rods 73 are in contact with the connecting belt 72, a bracket 74 is arranged on the pulley 71 at the end of the connecting belt 72, the bracket 74 is fixed on the support block 53, a motor 75 is installed on the bracket 74, the rotating shaft of the motor 75 is fixedly connected to the pulley 71, the outside of the pulley 71 is provided with external teeth, the inner side of the connecting belt 72 is provided with internal teeth, and the pulley 71 is meshed with the connecting belt 72.

[0048] Start the motor 75, which drives the pulley 71 to rotate. The pulley 71 drives the connecting belt 72 to move, thereby driving multiple pulleys 71 engaged with the belt to rotate accordingly, thereby driving multiple brush rollers 51 to rotate. In addition, limiting pressure rods 73 are provided at both ends of each pulley 71. The limiting pressure rods 73 make the connecting belt 72 fit tightly against the pulley 71, thereby ensuring the connection effect between the connecting belt 72 and the pulley 71.

[0049] like Figures 1 to 11 As shown, the tensioning assembly 8 includes a tensioning wheel 85 arranged at both ends of the connecting belt 72, an external tensioning belt 86 is arranged on the outside of the tensioning wheel 85, and the external tensioning belt 86 is connected to the connecting belt 72. A connecting side plate 81 is arranged at one end of the tensioning wheel 85, and the connecting side plate 81 is fixed on the supporting block 53. An adjusting groove 83 is opened inside the connecting side plate 81, and a movable block 84 is arranged in the adjusting groove 83. The tensioning wheel 85 is rotatably arranged on the movable block 84, and a telescopic rod 82 is installed at the end of the connecting side plate 81. The output end of the telescopic rod 82 extends into the adjusting groove 83 and is fixedly connected to the movable block 84.

[0050] When the brush roller 51 is moved by the side wall of the chain, the driving assembly 7 for driving the brush roller 51 follows the movement. To ensure the stability of the connection between the pulley 71 and the connecting belt 72, when the brush roller 51 drives the pulley 71 to move and relax the connecting belt 72, the telescopic rod 82 drives the movable block 84 to move outward, and the tensioning wheel 85 follows the movement and pulls the external tensioning belt 86 to tension the connecting belt 72. When the brush roller 51 drives the pulley 71 to move and gradually tightens the connecting belt 72, the telescopic rod 82 drives the movable block 84 to move inward, and the tensioning wheel 85 follows the movement and slowly loosens the external tensioning belt 86 to prevent the connecting belt 72 from being over-tightened and breaking. The tensioning assembly 8 is used to keep the connecting belt 72 that follows the brush roller 51 in a tensioned state at all times, thereby ensuring the connection between the pulley 71 and the connecting belt 72, so that the driving assembly 7 can provide a stable driving force for the brush roller 51, and the movement of the brush roller 51 will not affect the driving effect of the driving assembly 7 on it.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A chain varnishing device, comprising a base (1), a varnishing box (2) arranged at the top front end of the base (1), and a chain discharge pipe (3) arranged at the front part of the varnishing box (2), characterized in that: A chain bending assembly (4) is arranged at the rear end of the top of the base (1); a cleaning assembly (5) is arranged inside the chain bending assembly (4); an expansion assembly (6) is arranged on the cleaning assembly (5); a driving assembly (7) is arranged on the expansion assembly (6); and a tensioning assembly (8) is arranged on the driving assembly (7); The chain bending assembly (4) comprises a first curved pipe (41) arranged at the rear end of the top of the base (1), the first curved pipe (41) being located at the rear end of the paint dipping box (2), a second curved pipe (42) being arranged above the first curved pipe (41), the first curved pipe (41) being connected to the second curved pipe (42), and a straight pipe body (43) being fixed to one end of the bottom of the first curved pipe (41) and one end of the top of the second curved pipe (42); The cleaning assembly (5) comprises a cleaning brush roller (51) arranged at the top and bottom ends of the first curved tube (41) and the second curved tube (42) and at both sides of the straight tube body (43); support frames (52) are arranged at both ends of the cleaning brush roller (51); the support frames (52) are embedded in the first curved tube (41), the second curved tube (42) and the straight tube body (43); support blocks (53) are arranged in the support frames (52); the cleaning brush roller (51) is movably connected between the support blocks (53); and limiting grooves (54) are arranged at the top and bottom ends of the first curved tube (41) and the second curved tube (42) and at both sides of the straight tube body (43); Each cleaning brush roller (51) corresponds to a limiting groove (54), and the cleaning brush roller (51) can be moved into the limiting groove (54); The expansion component (6) comprises an expansion slot (62) provided in the support frame (52), the support block (53) being placed in the expansion slot (62), a spring (63) being fixed inside the expansion slot (62), one end of the spring (63) being fixedly connected to the support block (53), both sides of the first curved tube (41) and the second curved tube (42) and the top and bottom of the straight tube body (43) being provided with through slots (61), the through slots (61) being connected to the expansion slot (62), and the support block (53) extending into the through slots (61).

2. A chain varnishing equipment according to claim 1, characterized in that: The first curved pipe (41) and the second curved pipe (42) are both semi-circular in design, and the first curved pipe (41) and the second curved pipe (42) form an "S"-shaped design.

3. A chain varnishing equipment according to claim 1, characterized in that: The expansion component (6) further comprises guide grooves (64) formed on both sides of the expansion groove (62), and guide blocks (65) are arranged inside the guide grooves (64). The guide blocks (65) are fixed on both sides of the support block (53).

4. A chain varnishing equipment according to claim 3, characterized in that: The driving assembly (7) comprises a pulley (71) arranged on the support block (53), the pulley (71) being fixedly connected to a rotating shaft at one end of the brush roller (51), a connecting belt (72) being arranged outside the pulley (71), limiting pressure rods (73) being arranged at both ends of the pulley (71), the limiting pressure rods (73) being fixed on the support block (53), the limiting pressure rods (73) being in contact with the connecting belt (72), a bracket (74) being arranged on the pulley (71) at the end of the connecting belt (72), the bracket (74) being fixed on the support block (53), a motor (75) being mounted on the bracket (74), and a rotating shaft of the motor (75) being fixedly connected to the pulley (71).

5. A chain varnishing equipment according to claim 4, characterized in that: The outside of the belt pulley (71) is provided with external teeth, the inside of the connecting belt (72) is provided with internal teeth, and the belt pulley (71) is meshed with the connecting belt (72).

6. A chain varnishing equipment according to claim 4, characterized in that: The tensioning assembly (8) comprises a tensioning wheel (85) arranged at both ends of the connecting belt (72); an external tensioning belt (86) is arranged outside the tensioning wheel (85); the external tensioning belt (86) is connected to the connecting belt (72); a connecting side plate (81) is arranged at one end of the tensioning wheel (85); the connecting side plate (81) is fixed to the supporting block (53); an adjusting groove (83) is provided inside the connecting side plate (81); a movable block (84) is arranged in the adjusting groove (83); the tensioning wheel (85) is rotatably arranged on the movable block (84); a telescopic rod (82) is installed at the end of the connecting side plate (81); the output end of the telescopic rod (82) extends into the adjusting groove (83) and is fixedly connected to the movable block (84).

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