Adjustable gluing machine

Abstract

The utility model provides an adjustable glue spreader, which relates to the technical field of glue spreaders and comprises a rack, a vertical plate, an outer-layer replaceable glue spreader, a multi-nozzle spraying mechanism, a coating thickness limiting scraper mechanism, a coating gap and a lifting conveying mechanism, according to the device, glue is uniformly sprayed to the inclined upper part of the surface of the outer-layer replaceable glue spreading roller through the multi-nozzle spraying mechanism, and the uniform distribution thickness of a glue layer on the surface of the outer-layer replaceable glue spreading roller is ensured along with the uniform rotation of the outer-layer replaceable glue spreading roller; a glue layer on the outer wall of the outer-layer replaceable glue spreader is evenly scraped through the coating thickness limiting scraper mechanism, the coating gap size is adjusted by sliding the coating thickness limiting scraper mechanism, it is guaranteed that the thickness of the glue layer on the outer wall of the outer-layer replaceable glue spreader is precisely adjustable, then the thickness of the glue layer coated through the glue spreader is precisely controllable, and subsequent machining is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of glue applicators, in particular to an adjustable glue applicator. Background Art

[0002] A glue applicator is also known as a coating machine, a scraping machine, an automatic glue spraying machine, etc. It is mainly a mechanical device used to apply liquid glue on the surface of textiles, paper boxes or leather. The coating machine sprays liquids such as glue or paint onto the required products through air pressure.

[0003] During the use of the existing glue applicator, the glue spraying amount cannot be effectively adjusted, resulting in more or less glue output, and it cannot be accurately adjusted according to the required glue output, affecting subsequent processing. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable glue applicator. The device evenly sprays glue on the outer wall of the outer replaceable glue applicator roller through a multi-nozzle spraying mechanism, and scrapes and coats the glue layer on the outer wall of the outer replaceable glue applicator roller evenly through a coating thickness limiting scraper mechanism. Slide the coating thickness limiting scraper mechanism to adjust the coating gap size, ensure that the thickness of the glue layer on the outer wall of the outer replaceable glue applicator roller is accurately adjustable, and then the thickness of the glue layer coated by the glue applicator roller is also accurately controllable, avoiding affecting subsequent processing.

[0005] The utility model provides an adjustable glue applicator, including:

[0006] A frame;

[0007] Vertical plates are symmetrically and fixedly assembled on the front and rear sides of the upper edge of the frame;

[0008] An outer replaceable glue applicator roller, which is assembled in the middle of the opposite surfaces of the front and rear vertical plates;

[0009] The outer surface smoothness of the outer replaceable glue applicator roller is changed by replacing the outer layer;

[0010] A multi-nozzle spraying mechanism, which is assembled on one side close to the feeding end of the opposite surfaces of the front and rear vertical plates, and the output end of the multi-nozzle spraying mechanism faces obliquely upward near the feeding end of the outer wall of the outer replaceable glue applicator roller;

[0011] A coating thickness limiting scraper mechanism, which is transversely and interference-fitted and slidably assembled on one side close to the discharging end of the opposite surfaces of the front and rear vertical plates, and a coating gap is left between the outer wall of the coating thickness limiting scraper mechanism and the outer wall of the outer replaceable glue applicator roller;

[0012] The thickness of the glue layer on the surface of the outer replaceable glue applicator roller is the same as the thickness of the coating gap after being scraped by the coating thickness limiting scraper mechanism;

[0013] A lifting and conveying mechanism, which is fixedly assembled in the frame.

[0014] As a further optimization scheme, in order to achieve the sliding adjustment of the position of the coating thickness limiting scraper mechanism, and thus change the size of the coating gap, sliders are fixedly assembled on the front and rear side walls of the coating thickness limiting scraper mechanism. Corresponding to the same-side sliders, chutes are transversely opened on the opposite faces of the front and rear vertical plates, and the sliders are slidably assembled in the chutes in an interference fit manner.

[0015] As a further optimization scheme, in order to facilitate the replacement of the outer layer of the spliced cylinder, change the smoothness of the outer surface, and be applicable to the use of glue solutions with different viscosities, so that glue solutions with different viscosities can be stably attached to its surface, the outer layer replaceable glue applicator roller includes:

[0016] A roller shaft main body;

[0017] The outer wall of the roller shaft main body is wrapped with a spliced cylinder outer layer, and the spliced cylinder outer layer is formed by splicing two semi-cylinders;

[0018] One ends of round rods are fixedly assembled in the middle of both ends of the roller shaft main body. The other ends of the two round rods are rotatably connected to the same-side vertical plates, and collar rings are sleeved on the outer walls of the round rods;

[0019] In the middle of the side of the collar ring close to the roller shaft main body, an external thread ring is coaxially fixedly connected. An internal thread ring groove is opened on the end face of the roller shaft main body corresponding to the same-side external thread ring, and the external thread ring is screwed into the same-side internal thread ring groove;

[0020] Annular slots are coaxially opened at both ends of the spliced cylinder outer layer. On the outer edge of the side of the collar ring close to the roller shaft main body, a positioning insertion ring is coaxially fixedly connected, and the positioning insertion ring is inserted into the same-side annular slot;

[0021] A driving motor, the rotating shaft of which is fixedly connected to the end of one of the round rods through a coupling, and the housing of the driving motor is fixedly connected to the outer wall of the same-side vertical plate through a connecting flange.

[0022] As a further optimization scheme, in order to evenly spray glue obliquely above the outer wall of the outer layer replaceable glue applicator roller and ensure the uniform thickness distribution of the glue layer on the surface of the outer layer replaceable glue applicator roller, the multi-nozzle spraying mechanism includes:

[0023] A spray main pipe, which is fixedly assembled on the opposite faces of the front and rear vertical plates close to one side of the feeding end;

[0024] A glue inlet pipe, which is fixedly communicated with the spray main pipe;

[0025] One ends of metal bellows are uniformly fixedly communicated along the length direction on the outer wall of the spray main pipe close to the outer layer replaceable glue applicator roller, and the other ends of the metal bellows are fixedly communicated with nozzles.

[0026] As a further optimization solution, in order to scrape the surface glue layer of the outer replaceable glue applicator roller so that the thickness of its surface glue layer is the same as the thickness of the coating gap, facilitating the control of the glue layer thickness, the coating thickness limiting scraper mechanism includes:

[0027] A strip-shaped glue storage box;

[0028] A strip-shaped scraper, the lower end of which is fixedly connected to the upper surface of the strip-shaped glue storage box near one edge of the outer replaceable glue applicator roller, and there is a coating gap between the strip-shaped scraper and the outer wall of the outer replaceable glue applicator roller;

[0029] An aggregate trough is fixedly assembled at the lower end of the strip-shaped glue storage box near the outer replaceable glue applicator roller, and the distance between the aggregate trough and the outer wall of the outer replaceable glue applicator roller is the same as the coating gap;

[0030] Glue inlet holes are evenly formed on one side of the strip-shaped glue storage box near the outer replaceable glue applicator roller, and the glue inlet holes are located in the aggregate trough. A one-way valve is fixedly assembled in the glue inlet holes, and the one-way valve conducts unidirectionally from the aggregate trough to the inside of the strip-shaped glue storage box;

[0031] A glue discharge hole is formed at the lower end of the strip-shaped glue storage box on the side far from the outer replaceable glue applicator roller, and a rubber plug is inserted into the glue discharge hole.

[0032] As a further optimization solution, in order to electrically heat the inside of the strip-shaped glue storage box to prevent the glue liquid inside the strip-shaped glue storage box from solidifying, an electric heating anti-solidification structure is assembled on the strip-shaped glue storage box. The electric heating anti-solidification structure includes:

[0033] An electric heating wire, which is coiled and embedded in the inner wall of the strip-shaped glue storage box;

[0034] A storage battery, which is fixedly pasted on the outer wall of the strip-shaped glue storage box, and the storage battery is electrically connected to the electric heating wire.

[0035] As a further optimization solution, in order to drive the conveyor belt to lift and adjust its distance from the outer replaceable glue applicator roller, facilitating the use for raw materials to be coated with different thicknesses, the lifting conveyor mechanism includes:

[0036] A conveyor belt, which is inserted into the frame. Electric push rods are evenly fixedly assembled between the lower end of the conveyor belt and the bottom surface of the inner cavity of the frame, and the electric push rods are connected in parallel and then connected to an external power supply.

[0037] As a further optimization solution, in order to remove dust and impurities on the surface of the raw materials to be coated with glue, a wind cleaning mechanism is fixedly assembled on one side of the upper edge of the frame near the feeding end. The wind cleaning mechanism includes:

[0038] A strip-shaped plate, the two ends of which are fixedly connected to one side of the upper edge of the frame near the feeding end through bolts;

[0039] The upper surface of the strip-shaped plate is uniformly and fixedly communicated with air inlet pipes along the length direction. The upper ends of the air inlet pipes are fixedly communicated with air blowers, and the air blowers are connected in parallel and then connected to an external power supply.

[0040] As a further optimization scheme, in order to blow the dust and impurities on the surface of the raw material to be coated with glue to the outside of the device, the lower ends of the air inlet pipes are inclined towards the feeding end.

[0041] As a further optimization scheme, in order to facilitate the control of whether the air blower works or not, it further includes a controller, which is electrically connected to the air blowers connected in parallel

[0042] The present utility model provides an adjustable glue applicator through improvement. Compared with the prior art, it has the following improvements and advantages:

[0043] First, the device uniformly sprays glue obliquely above the surface of the outer layer replaceable glue coating roller through a multi-nozzle spraying mechanism. As the outer layer replaceable glue coating roller rotates at a constant speed, the thickness distribution of the glue layer on the surface of the outer layer replaceable glue coating roller is ensured to be uniform; the glue layer on the outer wall of the outer layer replaceable glue coating roller is scraped evenly through a coating thickness limiting scraper mechanism, and the coating gap size is adjusted by sliding the coating thickness limiting scraper mechanism, so as to ensure that the thickness of the glue layer on the outer wall of the outer layer replaceable glue coating roller is accurately adjustable. Furthermore, the thickness of the glue layer coated by the glue coating roller is also accurately controllable, avoiding affecting subsequent processing.

[0044] Second, in order to remove the dust and impurities on the surface of the raw material to be coated with glue, a wind cleaning mechanism is fixedly assembled on one side of the upper edge of the frame close to the feeding end. Description of the Drawings

[0045] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] Figure 1 It is a schematic structural diagram of the present utility model;

[0047] Figure 2 It is a schematic structural diagram of the outer layer replaceable glue coating roller of the present utility model;

[0048] Figure 3 For the present utility model Figure 1 The enlarged structural diagram at position A in it;

[0049] Figure 4 It is a schematic assembly structural diagram of the outer layer replaceable glue coating roller and the coating thickness limiting scraper mechanism of the present utility model;

[0050] Figure 5 Structural schematic diagram of the coating thickness limiting scraper mechanism and the electric heating anti-solidification structure of the present utility model;

[0051] Figure 6 Structural schematic diagram of the lifting and conveying mechanism of the present utility model.

[0052] Description of reference numerals:

[0053] 1 - Frame, 2 - Vertical plate, 3 - Outer layer replaceable glue - applying roller, 31 - Roller shaft body, 32 - Spliced cylinder outer layer, 33 - Round rod, 34 - Internal thread ring groove, 35 - Collar, 36 - External thread ring, 37 - Annular slot, 38 - Positioning insertion ring, 39 - Driving motor, 4 - Multi - nozzle spraying mechanism, 41 - Spraying main pipe, 42 - Glue inlet pipe, 43 - Metal bellows, 44 - Nozzle, 5 - Coating thickness limiting scraper mechanism, 51 - Strip - shaped glue storage box body, 52 - Strip - shaped scraper, 53 - Aggregate tank, 54 - Check valve, 55 - Glue inlet hole, 56 - Glue discharge hole, 57 - Glue plug, 6 - Lifting and conveying mechanism, 61 - Conveyor belt, 62 - Electric push rod, 7 - Wind cleaning mechanism, 71 - Strip - shaped plate, 72 - Air inlet pipe, 73 - Fan, 8 - Controller, 9 - Slide groove, 10 - Slide block, 11 - Electric heating anti - solidification structure, 111 - Battery, 112 - Electric heating wire. Specific embodiments

[0054] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0055] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0056] In the description of the present utility model, it should be understood that the terms "first" and "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined. In addition, the terms "installed", "connected", and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] Please refer to Figures 1-6 , the present utility model provides a technical solution: an adjustable glue applicator, comprising:

[0058] A frame 1, in this embodiment, the frame 1 is placed horizontally and is composed of a bottom plate and two side plates, and the two side plates are respectively vertically fixed at the front and rear edges of the upper surface of the bottom plate;

[0059] Vertical plates 2 are symmetrically and fixedly assembled on both sides of the upper edge of the frame 1 front and back;

[0060] An outer replaceable glue applicator roller 3, which is assembled in the middle of the opposite surfaces of the front and rear vertical plates 2. The outer replaceable glue applicator roller 3 is a glue applicator roller for applying glue to the raw material to be glued;

[0061] The outer surface smoothness of the outer replaceable glue applicator roller 3 is changed by replacing the outer layer;

[0062] A multi-nozzle spraying mechanism 4, which is assembled on one side of the opposite surfaces of the front and rear vertical plates 2 close to the feeding end. The output end of the multi-nozzle spraying mechanism 4 faces obliquely upward near the feeding end of the outer wall of the outer replaceable glue applicator roller 3. This inclined design makes the lower part of the spraying range of the nozzle 44 completely fall on the surface of the glue applicator roller;

[0063] A coating thickness limiting scraping mechanism 5, which is horizontally and press-fitted and slidably assembled on one side of the opposite surfaces of the front and rear vertical plates 2 close to the discharging end. There is a coating gap between the outer wall of the coating thickness limiting scraping mechanism 5 and the outer wall of the outer replaceable glue applicator roller 3;

[0064] The thickness of the glue layer on the surface of the outer replaceable glue applicator roller 3 is the same as the thickness of the coating gap after being scraped by the coating thickness limiting scraping mechanism 5;

[0065] A lifting and conveying mechanism 6, which is fixedly assembled in the frame 1 and is used for conveying the raw material to be glued.

[0066] In some embodiments, in order to achieve the sliding adjustment of the position of the coating thickness limiting scraper mechanism 5, and thus change the size of the coating gap, sliders 10 are fixedly assembled on the front and rear side walls of the coating thickness limiting scraper mechanism 5. Corresponding to the same-side sliders 10 on the opposite faces of the front and rear vertical plates 2, sliding grooves 9 are transversely formed. The sliders 10 are slidably assembled in the sliding grooves 9 in an interference fit manner; the coating thickness limiting scraper mechanism 5 can be removed by sliding the sliders 10 out of the ends of the sliding grooves 9 close to the discharge side.

[0067] In some embodiments, in order to facilitate the replacement of the outer layer 32 of the spliced cylinder, change the smoothness of the outer surface, and be applicable to the use of glue solutions with different viscosities, so that glue solutions with different viscosities can be stably adhered to its surface, the outer layer replaceable coating roller 3 includes:

[0068] A roller shaft main body 31;

[0069] The outer wall of the roller shaft main body 31 is wrapped with an outer layer 32 of a spliced cylinder, and the outer layer 32 of the spliced cylinder is formed by splicing two semi-cylinders;

[0070] At the middle parts of both ends of the roller shaft main body 31, one ends of two round rods 33 are fixedly assembled. The other ends of the two round rods 33 are rotatably connected to the same-side vertical plate 2, and a collar 35 is sleeved on the outer wall of the round rod 33;

[0071] On the middle part of the side of the collar 35 close to the roller shaft main body 31, an external thread ring 36 is coaxially fixedly connected. Corresponding to the same-side external thread ring 36 on the end face of the roller shaft main body 31, an internal thread ring groove 34 is formed. The external thread ring 36 is screwed into the same-side internal thread ring groove 34;

[0072] At both ends of the outer layer 32 of the spliced cylinder, annular slots 37 are coaxially formed. On the outer edge of the side of the collar 35 close to the roller shaft main body 31, a positioning insertion ring 38 is coaxially fixedly connected. The positioning insertion ring 38 is inserted into the same-side annular slot 37, and the positioning insertion ring 38 is a ring body for positioning;

[0073] A driving motor 39, the rotating shaft of which is fixedly connected to the end of one side round rod 33 through a coupling. The housing of the driving motor 39 is fixedly connected to the outer wall of the same-side vertical plate 2 through a connecting flange. The driving motor 39 is connected to an external power supply to drive the outer layer 32 of the spliced cylinder to rotate.

[0074] When replacing the outer layer 32 of the spliced cylinder, unscrew the collar 35 at one end. The collar 35 drives the positioning insertion ring 38 to be withdrawn from the same-side annular slot 37. The two semi-cylinders of the outer layer 32 of the spliced cylinder are no longer restricted by the limit and can be detached. After replacing the new outer layer 32 of the spliced cylinder, reverse the above process to complete the installation of the new outer layer 32 of the spliced cylinder.

[0075] In some embodiments, in order to uniformly spray glue obliquely above the outer wall of the outer replaceable glue applicator roll 3 and ensure the uniform thickness distribution of the glue layer on the surface of the outer replaceable glue applicator roll 3, the multi-nozzle spraying mechanism 4 includes:

[0076] A spray main pipe 41, which is fixedly assembled on one side close to the feeding end of the opposite surfaces of the front and rear vertical plates 2;

[0077] A glue inlet pipe 42, which is fixedly connected and communicated with the spray main pipe 41, and the glue inlet pipe 42 is used for high-pressure glue feeding;

[0078] One end of a metal bellows 43 is fixedly connected and communicated along the length direction on the outer wall of the spray main pipe 41 close to the outer replaceable glue applicator roll 3, and the other end of the metal bellows 43 is fixedly connected and communicated with a nozzle 44; the metal bellows 43 is bendable and plastic, and can change the orientation and angle of the nozzle 44, so that the lower part of the spraying range of the nozzle 44 completely falls on the surface of the glue applicator roll, and the upper part of the spraying range tries to fall on the surface of the glue applicator roll.

[0079] In some embodiments, in order to scrape the glue layer on the surface of the outer replaceable glue applicator roll 3 to make the thickness of the glue layer on its surface the same as the thickness of the coating gap and facilitate the control of the glue layer thickness, the coating thickness limiting scraper mechanism 5 includes:

[0080] A strip-shaped glue storage box body 51;

[0081] A strip-shaped scraper 52, the lower end of which is fixedly connected to the edge of the upper surface of the strip-shaped glue storage box body 51 close to the outer replaceable glue applicator roll 3, and there is a coating gap between the strip-shaped scraper 52 and the outer wall of the outer replaceable glue applicator roll 3;

[0082] An aggregate trough 53 is fixedly assembled at the lower end of the strip-shaped glue storage box body 51 close to the outer replaceable glue applicator roll 3, and the distance between the aggregate trough 53 and the outer wall of the outer replaceable glue applicator roll 3 is the same as the coating gap;

[0083] Glue inlet holes 55 are uniformly formed on one side of the strip-shaped glue storage box body 51 close to the outer replaceable glue applicator roll 3, and the glue inlet holes 55 are located in the aggregate trough 53. A one-way valve 54 is fixedly assembled in the glue inlet holes 55, and the one-way valve 54 conducts unidirectionally from the aggregate trough 53 to the inside of the strip-shaped glue storage box body 51;

[0084] A glue discharge hole 56 is formed at the lower end of the strip-shaped glue storage box body 51 far from the outer replaceable glue applicator roll 3, and a glue plug 57 is inserted into the glue discharge hole 56.

[0085] The upper end of the strip-shaped scraping plate 52 is higher than the outer replaceable glue coating roller 3, which can block the sprayed glue that accidentally detaches from the surface of the glue coating roller above the spraying range of the nozzle 44. The strip-shaped scraping plate 52 is also used for scraping the glue layer on the surface of the outer replaceable glue coating roller 3, scraping off the excess glue liquid of the glue layer, and supplementing the position where the glue liquid is insufficient, so that the thickness of the glue layer on the surface of the outer replaceable glue coating roller 3 is the same as the thickness of the coating gap;

[0086] The excess glue liquid scraped off by the strip-shaped scraping plate 52 flows downward along the strip-shaped scraping plate 52. After the excess glue liquid falls, it is temporarily stored in the aggregate tank 53. The temporarily stored glue liquid enters the strip-shaped glue storage box body 51 through the one-way valve 54 and is stored. The glue liquid can be taken out and recycled from the glue discharge hole 56 by pulling out the glue plug 57. Before recycling the glue liquid, the coating thickness limiting scraping plate mechanism 5 is disassembled, and after the glue liquid is recycled, the coating thickness limiting scraping plate mechanism 5 is reset.

[0087] In some embodiments, in order to electrically heat the inside of the strip-shaped glue storage box body 51 to prevent the glue liquid inside the strip-shaped glue storage box body 51 from solidifying and to be able to take out the collected glue liquid without external heating, an electric heating anti-solidification structure 11 is assembled on the strip-shaped glue storage box body 51. The electric heating anti-solidification structure 11 includes:

[0088] The electric heating wire 112 is coiled and embedded in the inner wall of the strip-shaped glue storage box body 51;

[0089] The storage battery 111 is fixedly adhered to the outer wall of the strip-shaped glue storage box body 51, and the storage battery 111 is electrically connected to the electric heating wire 112.

[0090] In some embodiments, in order to drive the conveyor belt 61 to lift, adjust its distance from the outer replaceable glue coating roller 3, and facilitate the use of raw materials to be coated with different thicknesses, the lifting conveyor mechanism 6 includes:

[0091] The conveyor belt 61 is inserted into the frame 1. Electric push rods 62 are uniformly fixedly assembled between the lower end of the conveyor belt 61 and the bottom surface of the inner cavity of the frame 1, and the electric push rods 62 are connected in parallel and then connected to an external power supply.

[0092] In some embodiments, in order to remove dust and impurities on the surface of the raw material to be coated with glue, a wind cleaning mechanism 7 is fixedly assembled on one side of the upper edge of the frame 1 close to the feeding end. The wind cleaning mechanism 7 includes:

[0093] The strip-shaped plate 71 has its two ends fixedly connected to one side of the upper edge of the frame 1 close to the feeding end through bolts;

[0094] Air inlet pipes 72 are uniformly and fixedly communicated along the length direction on the upper surface of the strip-shaped plate 71. The upper ends of the air inlet pipes 72 are fixedly communicated with a fan 73, and the fans 73 are connected in parallel and then connected to an external power supply; after the fans 73 are powered on, they exhaust air into the air inlet pipes 72, and the deflected wind power after passing through the air inlet pipes 72 blows on the surface of the raw material to be coated with glue.

[0095] In some embodiments, in order to blow the dust and impurities on the surface of the raw material to be coated with glue to the outside of the device, the lower end of the air inlet pipe 72 is inclined towards the feeding end.

[0096] In some embodiments, in order to facilitate the control of whether the fan 73 is working or not, a controller 8 is further included, which is electrically connected to the parallel-connected fan 73. The controller 8 can also be connected to other electrical devices in the device for controlling them.

[0097] Working principle:

[0098] The metal bellows 43 can be bent plastically to change the orientation and angle of the nozzle 44, so that the lower part of the spraying range of the nozzle 44 completely falls on the surface of the glue coating roller, and the upper part of the spraying range tries to fall on the surface of the glue coating roller. Through the multi-nozzle spraying mechanism 4, glue is sprayed obliquely upward on the surface of the outer replaceable glue coating roller 3. As the outer replaceable glue coating roller 3 rotates at a constant speed, the thickness distribution of the glue layer on the surface of the outer replaceable glue coating roller 3 is ensured to be uniform;

[0099] When replacing the outer layer 32 of the splicing cylinder, unscrew the collar 35 at one end. The collar 35 pulls out the positioning insertion ring 38 from the annular slot 37 on the same side. The two semi-cylinders of the outer layer 32 of the splicing cylinder are no longer restricted by the limit and can be detached. After replacing the new outer layer 32 of the splicing cylinder, reverse the above process to complete the installation of the new outer layer 32 of the splicing cylinder, replace the outer layer 32 of the splicing cylinder, change the smoothness of the outer surface, and be applicable to the use of glue liquids with different viscosities, so that glue liquids with different viscosities can be stably attached to its surface;

[0100] The upper end of the strip-shaped scraper 52 is higher than the outer replaceable glue coating roller 3, which can block the glue sprayed above the spraying range of the nozzle 44 and accidentally separated from the surface of the glue coating roller. The strip-shaped scraper 52 is also used for scraping the glue layer on the surface of the outer replaceable glue coating roller 3, scraping off the excess glue of the glue layer and replenishing the positions where the glue is insufficient, so that the thickness of the glue layer on the surface of the outer replaceable glue coating roller 3 is the same as the thickness of the coating gap; the sliding coating thickness limiting scraper mechanism 5 adjusts the size of the coating gap to ensure that the thickness of the glue layer on the outer wall of the outer replaceable glue coating roller 3 is accurately adjustable, and thus the thickness of the glue layer coated by the glue coating roller is also accurately controllable.

[0101] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable glue applicator, characterized in that, Comprising: Frame (1); Vertical plates (2) are symmetrically and fixedly assembled on the front and rear sides of the upper edge of the frame (1); An outer replaceable glue applicator roller (3), which is assembled in the middle of the opposite surfaces of the front and rear vertical plates (2); The outer surface smoothness of the outer replaceable glue applicator roller (3) is changed by replacing the outer layer; A multi-nozzle spraying mechanism (4), which is assembled on the side of the opposite surfaces of the front and rear vertical plates (2) close to the feeding end, and the output end of the multi-nozzle spraying mechanism (4) faces obliquely upward near the feeding end of the outer wall of the outer replaceable glue applicator roller (3); A coating thickness limiting scraping mechanism (5), which is transversely and interference-fittedly slidably assembled on the side of the opposite surfaces of the front and rear vertical plates (2) close to the discharging end, and a coating gap is left between the outer wall of the coating thickness limiting scraping mechanism (5) and the outer wall of the outer replaceable glue applicator roller (3); The thickness of the glue layer on the surface of the outer replaceable glue applicator roller (3) is the same as the thickness of the coating gap after being scraped by the coating thickness limiting scraping mechanism (5); A lifting and conveying mechanism (6), which is fixedly assembled in the frame (1).

2. The adjustable glue applicator according to claim 1, wherein Sliders (10) are fixedly assembled on the front and rear side walls of the coating thickness limiting scraping mechanism (5), and sliding grooves (9) are transversely opened on the opposite surfaces of the front and rear vertical plates (2) corresponding to the same-side sliders (10), and the sliders (10) are interference-fittedly slidably assembled in the sliding grooves (9).

3. An adjustable glue applicator according to claim 1, wherein The outer replaceable glue applicator roller (3) includes: A roller shaft main body (31); A splicing cylinder outer layer (32) is wrapped on the outer wall of the roller shaft main body (31), and the splicing cylinder outer layer (32) is formed by splicing two semi-cylinders; One ends of round rods (33) are fixedly assembled in the middle of both ends of the roller shaft main body (31), the other ends of the two round rods (33) are rotatably connected to the same-side vertical plate (2), and a collar (35) is sleeved on the outer wall of the round rod (33); A threaded ring (36) is coaxially fixedly connected to the middle of the side of the collar (35) close to the roller shaft main body (31), and an internal threaded ring groove (34) is opened on the end face of the roller shaft main body (31) corresponding to the same-side threaded ring (36), and the threaded ring (36) is screwed into the same-side internal threaded ring groove (34); Annular slots (37) are coaxially opened at both ends of the splicing cylinder outer layer (32), and a positioning plug ring (38) is coaxially fixedly connected to the outer edge of the side of the collar (35) close to the roller shaft main body (31), and the positioning plug ring (38) is inserted into the same-side annular slot (37); A driving motor (39), the rotating shaft of which is fixedly connected to the end of one of the round rods (33) through a coupling, and the housing of the driving motor (39) is fixedly connected to the outer wall of the same-side vertical plate (2) through a connecting flange.

4. An adjustable glue applicator according to claim 1, characterized in that, The multi-nozzle spraying mechanism (4) includes: A spraying main pipe (41), which is fixedly assembled on the side of the opposite surfaces of the front and rear vertical plates (2) close to the feeding end; A glue inlet pipe (42), which is fixedly communicated with the spraying main pipe (41); One end of a metal bellows (43) is fixedly communicated with the outer wall of the spray main pipe (41) along the length direction near one side of the outer replaceable coating roller (3), and the other end of the metal bellows (43) is fixedly communicated with a nozzle (44).

5. An adjustable glue applicator according to claim 1, wherein, The coating thickness limiting scraper mechanism (5) includes: A strip-shaped glue storage box body (51); A strip-shaped scraper (52), the lower end of which is fixedly connected to the edge of the upper surface of the strip-shaped glue storage box body (51) near one side of the outer replaceable coating roller (3), and a coating gap is left between the strip-shaped scraper (52) and the outer wall of the outer replaceable coating roller (3); An aggregate trough (53) is fixedly assembled at the lower end of the strip-shaped glue storage box body (51) near one side of the outer replaceable coating roller (3), and the distance between the aggregate trough (53) and the outer wall of the outer replaceable coating roller (3) is the same as the coating gap; The strip-shaped glue storage box body (51) is evenly provided with glue inlet holes (55) near one side of the outer replaceable coating roller (3), and the glue inlet holes (55) are located in the aggregate trough (53). A one-way valve (54) is fixedly assembled in the glue inlet holes (55), and the one-way valve (54) is unidirectionally conductive from the aggregate trough (53) to the inside of the strip-shaped glue storage box body (51); A glue discharge hole (56) is provided at the lower end of the strip-shaped glue storage box body (51) far from the outer replaceable coating roller (3), and a rubber plug (57) is inserted into the glue discharge hole (56).

6. An adjustable glue applicator according to claim 5, characterized in that, An electric heating anti-solidification structure (11) is assembled on the strip-shaped glue storage box body (51), and the electric heating anti-solidification structure (11) includes: An electric heating wire (112) which is coiled and embedded in the inner wall of the strip-shaped glue storage box body (51); A storage battery (111) which is fixedly adhered to the outer wall of the strip-shaped glue storage box body (51), and the storage battery (111) is electrically connected to the electric heating wire (112).

7. An adjustable glue applicator according to claim 1, wherein, The lifting and conveying mechanism (6) includes: A conveyor belt (61) which is inserted into the frame (1). Electric push rods (62) are evenly fixedly assembled between the lower end of the conveyor belt (61) and the bottom surface of the inner cavity of the frame (1), and the electric push rods (62) are connected in parallel and then connected to an external power source.

8. An adjustable glue applicator according to claim 1, wherein, A wind cleaning mechanism (7) is fixedly assembled on the upper edge of the frame (1) near one side of the feeding end, and the wind cleaning mechanism (7) includes: A strip-shaped plate (71) whose two ends are fixedly connected to the upper edge of the frame (1) near one side of the feeding end through bolts; The upper surface of the strip-shaped plate (71) is evenly fixedly communicated with air inlet pipes (72) along the length direction. The upper ends of the air inlet pipes (72) are fixedly communicated with a fan (73), and the fans (73) are connected in parallel and then connected to an external power source.

9. The adjustable glue applicator according to claim 8, wherein, The lower ends of the air inlet pipes (72) are inclined towards the feeding end.

10. An adjustable glue applicator according to claim 8, wherein, It further includes a controller (8) which is electrically connected to the fans (73) connected in parallel.

Images