CN211563527U - Rust-proof gluing system of metal can body seam welder - Google Patents

Abstract

The utility model relates to a rust-resistant rubberizing system of metal can body seam welder, accomplish the transmission subassembly that welded metal can body removed including support frame, rubberizing subassembly and drive, the stand is fixed on the seam welder organism, the rubberizing subassembly includes glue container and goes out the glue connection, it installs on the support frame to go out the glue connection, it communicates with each other with glue container to go out the glue connection, be fixed with the bracket that is used for accepting the metal can body on the support frame, the transmission subassembly includes the transmission band, the transmission direction of transmission band pair metal can body is extended along the transmission band to the bracket, bracket and transmission band interval setting in vertical direction, it is located the transmission band top to go out the glue connection, go out the vertical glue outlet of having seted up in glue connection bottom, be provided with the control module that the drive glue solution flows from glue outlet on the support frame. The utility model discloses can carry out the automatic gluing to accomplishing welded metal can body, have the effect that reduces operating personnel work load.

Description

Rust-proof gluing system of metal can body seam welder

Technical Field

The utility model belongs to the technical field of the technique of seam welder and specifically relates to an antirust gluing system of metal can body seam welder is related to.

Background

At present, metal cans are widely used as containers in the packaging industry, particularly in the paint industry, and are often selected as packaging containers for paint.

The can body of the existing metal can is generally cylindrical, the cylindrical metal can body is generally formed by bending a metal plate and welding the metal plate end to end, the welding process is generally finished by a seam welder, a linear welding seam can be left on the can body of the metal can, and because two welding electrodes on the seam welder are vertically arranged on the same vertical surface, the butt joint of the bent metal plate and the end to end of the bent metal plate needs to be upward when the welding electrode is used for welding the bent metal plate, so that the welding seam on the outer wall of the metal can body is upward in the vertical direction when the welding electrode is used for welding the metal can body;

be provided with the transmission system who is used for carrying out the transmission to the metal can body on the welding seam machine organism, transmission system will accomplish welded metal can body and transmit the assigned position back through the conveyer belt, in order to prevent that the welding seam of metal can body from getting rusty, operating personnel need be manual to the one deck glue film of coating of the can body welding seam department of accomplishing welded metal can, above-mentioned glue film can stop the welding seam of metal can body and the oxygen contact in the air, thereby prevent that the welding seam of metal can body from getting rusty because of the oxidation.

The above prior art solutions have the following drawbacks: an operator needs to manually glue the metal can bodies one by one after the seam welder finishes welding the metal can bodies, and the workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rust-resistant rubberizing system of metal can body seam welder, this system can carry out the automatic rubberizing to accomplishing welded metal can body, and operating personnel need not carry out the rubber coating to metal can body one by one through the manpower, has the advantage that reduces operating personnel work load.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

rust-resistant rubberizing system of metal can body seam welder, including support frame, rubberizing subassembly and the transmission subassembly that drives the removal of accomplishing welded metal can body, the stand is fixed on the seam welder organism, the rubberizing subassembly includes glue container and goes out the glue joint, it installs on the support frame to go out the glue joint, it communicates with each other with glue container to go out the glue joint, be fixed with the bracket that is used for accepting the metal can body on the support frame, the transmission subassembly includes the transmission band, the bracket extends to the transmission direction of metal can body along the transmission band, the bracket sets up with the transmission band interval in vertical direction, it is located the transmission band top to go out the glue joint, it is vertical to have seted up out the jiao kou to go out the glue joint bottom, be provided with the control module that the drive glue solution flows from a jiao.

Through adopting above-mentioned technical scheme, operating personnel will accomplish the metal can body of welding seam and put on the bracket, transmission band and metal can body butt simultaneously, the transmission band rotates and drives the metal can body and remove, the metal can body slides along transmission band direction of transfer on the bracket, when treating that the metal can body moves to glue outlet below, the rust-resistant glue solution in the glue container flows metal can body welding seam department through glue outlet on the glue outlet joint under control module's drive, thereby accomplish the automatic rubberizing to metal can body welding seam department, operating personnel need not carry out the rubber coating to the metal can body one by one through the manpower, and the operation is convenient, and the workload of operating personnel is reduced.

The utility model discloses further set up to: the support frame is provided with a brush holder, the brush holder is detachably connected with a brush used for uniformly coating antirust glue on the metal can body, and the brush is positioned above the bracket.

By adopting the technical scheme, after the metal can body is glued by the gluing component, the conveying belt continues to convey the metal can body, the glued metal can body moves to the brush arrangement position, the brush is brushed on the welding seam of the metal can body so as to uniformly coat the antirust glue solution on the welding seam of the metal can body, so that the antirust glue solution is ensured to be uniformly coated on each part of the welding seam of the metal can body, and the antirust performance of the metal can body is prevented from being reduced due to the uneven coating of the antirust glue solution on the welding seam of the metal can body; the brush can fall hair after long-term use, and when the brush hair on the brush is reduced to unable normal use, operating personnel can remove the brush from the brush yoke and change new brush, ensures that the brush can brush the rust-resistant glue solution on the metal can body evenly.

The utility model discloses further set up to: the brush yoke comprises a connecting frame and a rotating portion, the connecting frame is fixed on the supporting frame, the rotating portion is connected with the connecting frame in a rotating mode, a clamping portion used for clamping the brush is arranged on the rotating portion, the clamping portion is circumferentially distributed on the rotating portion and is not less than two, and a rotation limiting assembly used for limiting rotation of the rotating portion is arranged on the rotating portion.

By adopting the technical scheme, the rotation of the rotating part is limited by the rotation limiting component in the initial state, the hairbrush is arranged on each clamping part, when the hairbrush on one clamping part is damaged and cannot be normally used, the operator removes the limitation of the rotation limiting component on the rotation of the rotating part and rotates the rotating part, so that the new hairbrush rotates to the specified position where the antirust glue solution can be applied to the metal can body in transmission, the operator limits the rotation of the rotating part again, the new hairbrush can continue to evenly brush the antirust glue solution on the metal can body in transmission, and then the operator can replace the damaged hairbrush when the transmission belt continues to operate; the operating personnel can rotate the new brush to the initial position of the brush of damage at the in-process of transmission band normal operating to the realization will be used for the change of the even brush of rust-resistant glue solution brush, need not to stop the transportation of transmission band and change the brush again under the circumstances that the brush damaged, save operating time, guaranteed the rubberizing efficiency to the metal can body.

The utility model discloses further set up to: the rotation limiting assembly comprises a fixing pin, a first rotation limiting hole is formed in the rotation limiting assembly, the number of the first rotation limiting hole is not less than two, the number of the first rotation limiting hole is consistent with the number of the clamping portions, and the fixing pin penetrates through the first rotation limiting hole and penetrates through the connecting frame.

Through adopting above-mentioned technical scheme, after a brush damages, operating personnel can remove the restriction to rotating part pivoted after extracting the fixed pin from a first restriction commentaries on classics hole, operating personnel can rotate rotating part and be used for brushing even brush with rust-resistant glue solution with the change, treat that the brush of new change rotates to the assigned position after, operating personnel inserts the fixed pin and corresponds another first restriction commentaries on classics hole of position and make the fixed pin pass the link again, thereby realize the rotation restriction to rotating part once more, convenient operation.

The utility model discloses further set up to: the clamping part comprises a clamping ring, a threaded rod and a brush fixed with the clamping ring through clamping the inner wall of the clamping ring, the clamping ring is fixedly installed on the rotating part, the threaded rod penetrates through one side wall of the clamping ring and is in threaded connection with the clamping ring, and the clamping block is located in the clamping ring and is in rotating connection with the threaded rod.

Through adopting above-mentioned technical scheme, the brush damages the back, and operating personnel unscrews the threaded rod and makes clamp splice and the brush of damage relieve the butt, and operating personnel takes out the brush from the clamping ring and penetrates new brush holder in the clamping ring, and operating personnel is reverse rotation threaded rod again so that the clamp splice tightly supports in the brush holder to make clamp splice and clamping ring inner wall centre gripping fix the brush of new change, thereby accomplish the change to the brush, convenient operation.

The utility model discloses further set up to: the rubberizing subassembly still includes the liquid pump, the drawing liquid mouth of liquid pump passes through the pipeline and communicates with the glue container, the liquid outlet and the play glue joint of liquid pump pass through the pipeline intercommunication.

Through adopting above-mentioned technical scheme, rust-resistant glue pump to play plastic cement joint department in the liquid pump with the plastic cement container, need not let rust-resistant glue in the plastic cement container flow to play plastic cement joint department through gravity, then the plastic cement container need not install in a plastic cement joint top, the plastic cement container can directly be placed subaerial, owing to need not consider the biggest bearing capacity who is used for supporting the structure of plastic cement container when the installation to the plastic cement container, the great plastic cement container of volume is chooseed for use in the event, prevent that operating personnel need frequently add rust-resistant glue solution in to the plastic cement container when carrying out rust-resistant glue solution rubberizing to the metal tank body, reduce operating personnel work load.

The utility model discloses further set up to: the control module comprises a diffuse reflection laser sensor, the diffuse reflection laser sensor is electrically connected with the liquid pump, and the sensing head and the glue outlet of the diffuse reflection laser sensor are positioned on the same vertical surface perpendicular to the transmission direction of the transmission belt.

By adopting the technical scheme, the sensing head of the diffuse reflection laser sensor emits a laser line in an initial state, when the metal can body moves to the position below the glue outlet joint under the transmission of the transmission belt, the metal can body blocks the laser line, the laser line generates diffuse reflection after meeting the metal can body, the light of the diffuse reflection is injected into the sensing head of the diffuse reflection laser sensor, the diffuse reflection laser sensor sends a starting signal to the liquid pump, the liquid pump is started, so that the antirust glue liquid is pumped to the glue outlet joint, and the antirust glue liquid flows to the welding seam of the metal can body from the glue outlet joint so as to glue the antirust glue liquid of the metal can body;

the metal can body continues to move under the transmission of the transmission belt, after the metal can body is moved away from the lower side of the glue outlet joint, the metal can body breaks the blocking of the laser line, the reflected light received by the sensing head of the diffuse reflection laser sensor disappears, the diffuse reflection laser sensor immediately sends a closing signal to the liquid pump, and the liquid pump is closed, so that the waste of the antirust glue solution is prevented.

The utility model discloses further set up to: the bracket is provided with a collection box which is positioned below the glue outlet.

Through adopting above-mentioned technical scheme, when the liquid pump stopped operating, the department of glue outlet often can the antirust glue solution of residual part, and the antirust glue solution of remaining department of glue outlet drips under the action of gravity in collecting the box, prevents that antirust glue solution from dripping to subaerial and polluting ground.

The utility model discloses further set up to: the collecting box is detachably connected with the bracket, and the collecting box is detachably connected with a dust isolating net.

Through adopting above-mentioned technical scheme, operating personnel can follow the bracket with collecting the box and pull down in order to carry out recycle to the rust-resistant glue solution in collecting the box, and the reducible dust that falls into in collecting the box of dust separation net prevents to fall into the dust in collecting the box too much and reduce the recycle who collects the interior rust-resistant glue solution of box.

The utility model discloses further set up to: the transmission assembly further comprises a belt wheel, the transmission belt sleeve is arranged on the belt wheel, the support frame comprises a housing, the housing covers the belt wheel and the transmission belt from the top and two sides, and the distance between the housing inner side wall and the side face, adjacent to the housing inner side wall, of the transmission belt is smaller than the bandwidth of the transmission belt.

Through adopting above-mentioned technical scheme, the housing covers transmission band and band pulley, and the distance between the side that housing inside wall and transmission band and this housing inside wall are close to is less than the bandwidth of transmission band, thereby the housing has blocked the transmission band from both sides, restricts the direction removal of transmission band along the perpendicular to transmission band direction of transfer, prevents to fall out and influence the transportation of metal can body from the band pulley when transmission band and metal can body butt.

To sum up, the utility model discloses a beneficial technological effect does:

the metal can body slides on the bracket along the transmission direction of the transmission belt under the transmission of the transmission belt, when the metal can body moves to the position below the glue outlet joint, the antirust glue in the glue container flows out through the glue outlet joint under the driving of the control module and is coated on the welding seam of the metal can body, so that the automatic gluing of the welding seam of the metal can body is finished, operators do not need to glue the metal can body one by one through manpower, and the operation is convenient;

the brush is brushed on the welding seam of the metal can body so as to uniformly coat the antirust glue solution on the welding seam of the metal can body, so that the antirust glue solution is ensured to be uniformly coated on each part of the welding seam of the metal can body, and the antirust performance of the metal can body is prevented from being reduced due to the uneven coating of the antirust glue solution on the welding seam of the metal can body;

an operator can realize the replacement of a brush for uniformly brushing the antirust glue solution on the metal can body in transmission by rotating the rotating part under the condition that the transmission belt runs, thereby saving the working time and ensuring the gluing efficiency of the metal can body.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a sectional view of a brush holder and a clamping portion in the present embodiment;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a sectional view of the collecting box, the slide rail and the dust-separation net in this embodiment.

In the figure, 1, a support frame; 11. a fixed mount; 12. a housing; 13. a first connection block; 14. mounting a plate; 15. a second connecting block; 2. a gluing component; 21. discharging the glue joint; 212. a glue outlet; 22. a glue container; 23. a liquid pump; 3. a transmission assembly; 31. a motor; 32. a connecting shaft; 33. a pulley; 34. a conveyor belt; 4. a bracket; 41. a slide rail; 42. a collection box; 421. a dust-proof net; 422. a groove; 5. a diffuse reflection laser sensor; 6. a brush holder; 61. a connecting frame; 611. a second rotation limiting hole; 62. a rotating part; 621. a first rotation limiting hole; 7. a brush; 8. a clamping portion; 81. clamping a ring; 82. a threaded rod; 83. a clamping block; 9. a connecting rod; 10. and fixing the pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses an antirust sizing system of a metal can body seam welder, which comprises a support frame 1, a sizing component 2 and a transmission component 3 for driving the welded metal can body to move, the transmission direction of the transmission component 3 to the metal can body is the same as the transmission direction of the transmission system on the welding machine body to the metal can body, the support frame 1 comprises a fixing frame 11, a housing 12 and a first connecting block 13, the fixing frame 11 is fixed on the side part of the seam welder body, two housings 12 are arranged, one housing 12 is fixed on the fixing frame 11, the first connecting block 13 is fixed on the housing 12, the other housing 12 is fixed on the first connecting block 13, the two housings 12 are arranged at intervals along the direction perpendicular to the transmission direction of the metal can body, two ends of the first connecting block 13 are respectively fixed with the two housings 12, a bracket 4 for receiving the metal can body from the bottom is fixed below the housing 12, the metal can body is in sliding fit with the bracket 4 along the transmission direction of the metal can body;

the transmission assembly 3 comprises a motor 31, a connecting shaft 32, belt wheels 33 and a transmission belt 34, wherein two belt wheels 33 are arranged in a housing 12 at intervals along the transmission direction of the metal can body, the connecting shaft 32 penetrates through the two housings 12 and is fixed with the belt wheels 33 positioned at the same positions in the two housings 12, the connecting shaft 32 is rotatably connected with the housings 12, the transmission belt 34 is wound on the two belt wheels 33 in the same housing 12, the distance between the inner side wall of the housing 12 and the side surface of the transmission belt 34 adjacent to the inner side wall of the housing 12 is smaller than the bandwidth of the transmission belt 34, the support frame 1 further comprises a mounting plate 14, the mounting plate 14 is horizontally fixed on the side part of one housing 12, the motor 31 is fixed on the mounting plate 14, the rotating shaft of the motor 31 penetrates through the housing 12 fixed with the mounting plate 14 and is coaxially;

referring to fig. 2 and 3, rubberizing subassembly 2 includes out the glue connection 21, glue container 22 and liquid pump 23, support frame 1 still includes second connecting block 15, second connecting block 15 level is fixed on the support body, it installs in second connecting block 15 bottom to go out glue connection 21, it is located transmission band 34 top to go out glue connection 21, it has offered out jiao kou 212 vertically to go out glue connection 21 bottom, it aims at the space between two transmission bands 34 to go out jiao kou 212, glue container 22 places subaerial, liquid pump 23 is fixed on glue container 22, the drawing liquid mouth of liquid pump 23 passes through the pipeline and communicates with glue container 22, the liquid outlet of liquid pump 23 passes through the pipeline with play glue connection 21 and communicates.

Be provided with the control module that the drive glue solution flows from play rubber joint 21 on the second connecting block 15, control module includes diffuse reflection laser sensor 5, diffuse reflection laser sensor 5 and liquid pump 23 electric connection and control the start-up and closing of liquid pump 23, diffuse reflection laser sensor 5 fixes on second connecting block 15, diffuse reflection laser sensor 5's response head is vertical down, diffuse reflection laser sensor 5's response head is vertical ejection of laser line downwards, diffuse reflection laser sensor 5's response head aims at the space between two conveyer belts, diffuse reflection laser sensor 5's response head and play jiao kou 212 are located the vertical face of same perpendicular to transmission band 34 direction of transfer.

Referring to fig. 4 and 5, a brush holder 6 is mounted on the frame body, the brush holder 6 is disposed on one side of the second connecting block 15, a metal plate bent under the transmission of the transmission belt 34 passes through the lower portion of the second connecting block 15 and then passes through the lower portion of the brush holder 6, a brush 7 for uniformly coating an antirust glue solution on a welding seam of the metal can body is detachably connected to the brush holder 6, the brush holder 6 includes a connecting frame 61 and a rotating portion 62, the connecting frame 61 is horizontally fixed on the frame body, the rotating portion 62 is rotatably connected with the connecting frame 61, the rotating portion 62 is disc-shaped, a clamping portion 8 for clamping the brush 7 is disposed on the rotating portion 62, at least two clamping portions 8 are circumferentially distributed on the rotating portion 62, in this embodiment, the clamping portions 8 are provided with two groups, each clamping portion 8 includes a clamping ring 81, a threaded rod 82 and a clamping block 83, two connecting rods 9 are circumferentially distributed on the rotating portion 62, the two connecting rods 9 are horizontally fixed on the rotating, the clamping ring 81 is fixed on the connecting rod 9, the threaded rod 82 penetrates through one side wall of the clamping ring 81 and is in threaded connection with the clamping ring 81, the clamping block 83 is positioned in the clamping ring 81 and is rotationally connected with the threaded rod 82, the brush handle of the brush 7 extends into the clamping ring 81, and the clamping block 83 and the inner wall of the clamping ring 81 clamp and fix the brush handle of the brush 7;

it changes the subassembly to be provided with the restriction that rotation portion 62 rotated the restriction of giving on rotation portion 62, the restriction changes the subassembly and includes fixed pin 10, first restriction commentaries on classics hole 621 has been seted up on rotation portion 62, first restriction commentaries on classics hole 621 circumference array distributes on rotation portion 62 and is no less than two, first restriction commentaries on classics hole 621 quantity is unanimous with 8 quantity of clamping part, second restriction commentaries on classics hole 611 has been seted up to the link 61 upper level, first restriction commentaries on classics hole 621 communicates with each other with second restriction commentaries on classics hole 611, fixed pin 10 passes first restriction commentaries on classics hole 621, second restriction commentaries on classics hole 611, fixed pin 10 and second restriction commentaries on classics hole 611 adaptation, first restriction commentaries on classics hole 621, second.

Referring to fig. 1 and 6, a slide rail 41 is fixed at the bottom of the bracket 4, the slide rail 41 is located under the upper rubber joint, a collection box 42 is connected to the slide rail 41 in a sliding manner along the transmission direction of the transmission belt 34, the collection box 42 collects the antirust liquid dropping from the upper rubber joint, a dust separation net 421 is arranged on the collection box 42, a groove 422 is formed in the top of the collection box 42, and the dust separation net 421 is matched with the groove 422 and is embedded into the groove 422.

The implementation principle of the embodiment is as follows: the transmission system on the seam welder body transmits the welded metal can body to the bracket 4 one by one through the conveying belt, the welding seam on the metal can body faces the upper side at the moment, the metal can body on the bracket 4 is abutted to the conveying belt 34, the motor 31 rotates to drive the belt pulley 33 to rotate, the conveying belt 34 is driven to rotate, the conveying belt 34 realizes the transmission of the metal can body through friction force, and the metal can body slides along the conveying direction of the conveying belt 34 on the bracket 4.

The metal can body moves to the position below the gluing connector and the diffuse reflection laser sensor 5 under the transmission of the transmission belt 34, the metal can body blocks a laser line, the laser line is subjected to diffuse reflection after meeting the metal can body, the diffusely reflected light is injected into the sensing head of the diffuse reflection laser sensor 5, the diffuse reflection laser sensor 5 sends a starting signal to the liquid pump 23, the liquid pump 23 is started, so that the antirust glue liquid is pumped to the glue outlet connector 21, and the antirust glue liquid flows to the welding seam of the metal can body from the glue outlet connector 21, so that the antirust glue liquid of the metal can body is glued;

the metal can body continues to move under the transmission of the transmission belt 34, after the metal can body moves away from the lower part of the glue outlet joint 21, the metal can body releases the blocking of the laser line, the reflected light received by the sensing head of the diffuse reflection laser sensor 5 disappears, the diffuse reflection laser sensor 5 immediately sends a closing signal to the liquid pump 23, the liquid pump 23 is closed, and the glue outlet 211 stops flowing out of the antirust glue solution;

the metal can body moves to brush 7 setting department under the transmission of transmission band 34, and brush 7 brushes the rust-resistant glue solution on the metal can body welding seam department evenly, and transmission band 34 transmits the metal can body to bracket 4 extreme department afterwards, and operating personnel can retrieve the metal can body of accomplishing the brush and glue in order to carry out further processing.

When the brush 7 for uniformly brushing the antirust liquid on the metal can body is damaged, an operator pulls out the fixing pin 10 from the first rotation limiting hole 621 and the second rotation limiting hole 611 and then rotates the rotating part 62, so that the new brush 7 moves to the specified position where the original damaged brush 7 is located, and then the operator inserts the fixing pin 10 into the first rotation limiting hole 621 and the second rotation limiting hole 611 at the specified position to limit the rotation of the rotating part 62 again;

operating personnel operates the clamping part 8 of the fixed brush 7 that has damage of centre gripping, thereby operating personnel rotates threaded rod 82 and makes clamp splice 83 and the brush holder of the brush 7 of damage relieve the butt, operating personnel can take out the brush 7 of damage from clamp ring 81 and stretch into clamp ring 81 with new brush 7 brush holder, operating personnel antiport threaded rod 82, clamp splice 83 is tightly supported with the brush holder of the brush 7 of new change, thereby make clamp splice 83 and clamp ring 81 inner wall centre gripping fix the brush 7 of new change, thereby accomplish the change to brush 7.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. Rust-resistant rubberizing system of metal can body seam welder, its characterized in that: including support frame (1), rubberizing subassembly (2) and drive transmission subassembly (3) of accomplishing welded metal can body and removing, the support frame is fixed on the seam welder organism, rubberizing subassembly (2) are including glue container (22) and play glue joint (21), it installs on support frame (1) to go out glue joint (21), it communicates with each other with glue container (22) to go out glue joint (21), be fixed with on support frame (1) and be used for accepting bracket (4) of metal can body, transmission subassembly (3) are including transmission band (34), bracket (4) extend to the transmission direction of metal can body along transmission band (34), bracket (4) and transmission band (34) interval setting in vertical direction, it is located transmission band (34) top to go out glue joint (21), go out glue joint (21) bottom and vertically seted up out jiao kou (212), the support frame (1) is provided with a control module for driving the glue solution to flow out from the glue outlet (212).

2. The rust-preventive sizing system for a metal can body seam welder according to claim 1, characterized in that: install brush yoke (6) on support frame (1), can dismantle on brush yoke (6) and be connected with brush (7) that are used for scribbling the antirust glue solution on the metal can body even, brush (7) are located bracket (4) top.

3. The rust-preventive sizing system for a metal can body seam welder according to claim 2, characterized in that: brush yoke (6) are including link (61) and rotation portion (62), link (61) are fixed on support frame (1), rotation portion (62) rotate with link (61) and are connected, be equipped with clamping part (8) that are used for pressing from both sides tight brush (7) on rotation portion (62), clamping part (8) circumference distribution is gone up in rotation portion (62) has and is no less than two, be provided with the restriction rotation portion (62) pivoted on rotation portion (62) and limit the subassembly.

4. The rust-preventive sizing system for a metal can body seam welder according to claim 3, characterized in that: the rotation limiting assembly comprises a fixing pin (10), a first rotation limiting hole (621) is formed in the rotation, the number of the first rotation limiting hole (621) is not less than two, the number of the first rotation limiting hole (621) is consistent with the number of the clamping portions (8), and the fixing pin (10) penetrates through the first rotation limiting hole (621) and penetrates through the connecting frame (61).

5. The rust-preventive sizing system for a metal can body seam welder according to claim 3, characterized in that: clamping part (8) including clamp ring (81), threaded rod (82) and with clamp ring (81) inner wall centre gripping fix brush (7), clamp ring (81) fixed mounting is on rotation portion (62), threaded rod (82) pierce through clamp ring (81) a lateral wall and with clamp ring (81) threaded connection, clamp splice (83) are located clamp ring (81) and rotate with threaded rod (82) and be connected.

6. The rust-preventive sizing system for a metal can body seam welder according to claim 1, characterized in that: rubberizing subassembly (2) still include liquid pump (23), the drawing liquid mouth of liquid pump (23) passes through the pipeline and communicates with glue container (22), the liquid outlet and the play gluey joint (21) of liquid pump (23) pass through the pipeline intercommunication.

7. The rust-preventive sizing system for a metal can body seam welder according to claim 6, characterized in that: the control module comprises a diffuse reflection laser sensor (5), the diffuse reflection laser sensor (5) is electrically connected with the liquid pump (23), and the sensing head part and the glue outlet (212) of the diffuse reflection laser sensor (5) are positioned on the vertical surface of the transmission direction of the same vertical transmission belt (34).

8. The rust-preventive sizing system for a metal can body seam welder according to claim 1, characterized in that: a collecting box (42) is arranged on the bracket (4), and the collecting box (42) is positioned below the glue outlet (212).

9. The rust-preventive sizing system for a metal can body seam welder according to claim 8, characterized in that: the collecting box (42) is detachably connected with the bracket (4), and the collecting box (42) is detachably connected with a dust isolating net (421).

10. The rust-preventive sizing system for a metal can body seam welder according to claim 1, characterized in that: the transmission assembly (3) further comprises a belt wheel (33), the transmission belt sleeve is arranged on the belt wheel, the support frame (1) comprises a housing (12), the housing (12) covers the belt wheel (33) and the transmission belt (34) from the top and two sides, and the distance between the inner side wall of the housing (12) and the side face, adjacent to the inner side wall of the housing (12), of the transmission belt (34) is smaller than the bandwidth of the transmission belt (34).

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