Gluing mechanism for upper lead core slot plate and working method thereof

Abstract

The application relates to a lead core groove plate gluing mechanism and a working method thereof, characterized in that the lead core groove plate gluing mechanism comprises a machine body and a glue rolling mechanism arranged on the machine body; the glue rolling mechanism comprises a groove type glue storage cavity and a glue rolling shaft arranged in the groove type glue storage cavity and perpendicular to the running direction of the lead core groove plate; a plurality of groups of detachably connected brush assemblies are uniformly distributed on the glue rolling shaft in the circumferential direction; the brush assemblies are provided with brush hairs; the length direction of the brush assemblies and the brush hairs is arranged towards the axial direction of the glue rolling shaft; glue overflow preventing pressing plates are arranged on both sides of the slot opening part of the groove type glue storage cavity; the interval between the glue overflow preventing pressing plates on both sides is smaller than the width of the slot opening part of the groove type glue storage cavity and also smaller than the length of the brush hairs arranged along the axial direction of the glue rolling shaft; through the ingenious structural design, the application is favorable for reducing or avoiding glue overflow and can adapt to the gluing of the lead core groove plate with large bending; the glue thickness can be controlled by adjusting the height of the brush hairs of the second brush assembly.

Description

Technical Field

[0001] This invention relates to a glue-coating mechanism for an upper lead core groove plate and its working method. Background Technology

[0002] Pencils are writing and drawing tools used by people. They have a history of more than 400 years. The typical steps in making a pencil are: 1. Make two grooved plates with lead grooves, one on top and one on the bottom; 2. Put the lead into the lead grooves on the grooved plates one by one; 3. Apply glue to cover and fix the two grooved plates; 4. Cut the fixed upper and lower grooved plates into strips; 5. Roll the strips into a round shape to form a pencil.

[0003] The applicant filed an application in April 2023 for "A glue-applying mechanism for an upper lead core channel plate". Application No. 2023209087575 describes a glue-applying mechanism that requires filling the coating cavity with glue and applying it to the groove plate using a brush soaked in glue. On one hand, the height of the channel through the upper lead core groove plate is limited. Adjusting the channel height to match the groove plate thickness can avoid or minimize glue overflow. However, when encountering a significantly warped upper lead core groove plate, the cover plate blocks its passage, causing equipment downtime. To avoid frequent downtime, the cover plate is usually adjusted higher to increase the channel height and accommodate the warped upper lead core groove plate. However, increasing the channel height causes glue to overflow from the gaps (between the cover plate and the brush mounting slot), resulting in severe glue overflow, wasting glue and increasing production costs. Solving this problem presents a dilemma: reducing glue overflow (decreasing the channel height) leads to frequent equipment downtime, affecting production efficiency; increasing the channel height is necessary to avoid frequent downtime. Summary of the Invention

[0004] In view of the above-mentioned problems, the present invention proposes an upper lead core groove plate glue application mechanism. The upper lead core groove plate glue application mechanism is reasonably designed, which helps to reduce glue overflow and can adapt to the glue application of upper lead core groove plates with large warping.

[0005] This invention is implemented using the following scheme:

[0006] The present invention relates to a glue-applying mechanism for upper lead core slot plates, characterized in that it includes a machine body and a glue-rolling mechanism mounted on the machine body. The glue-rolling mechanism includes a slot-shaped glue storage cavity and a glue-rolling shaft disposed within the slot-shaped glue storage cavity and perpendicular to the traveling direction of the upper lead core slot plate. Several sets of detachably connected brush assemblies are evenly distributed along the circumferential direction on the glue-rolling shaft. Each brush assembly has bristles, and the length direction of the brush assemblies and the bristles is oriented towards the axial direction of the glue-rolling shaft. Anti-overflow glue pressure plates are provided at the slot opening of the slot-shaped glue storage cavity on both sides of the upper lead core slot plate's traveling path. These anti-overflow glue pressure plates are mounted above the bristles and can... When the brush bristles rotate, the anti-overflow adhesive pressure plate scrapes off the adhesive on both sides of the brush bristles. The distance between the two anti-overflow adhesive pressure plates is less than the width of the groove opening of the groove-shaped adhesive storage cavity and also less than the length of the brush bristles arranged axially along the roller axis. Each anti-overflow adhesive pressure plate is provided with a side baffle above it for limiting and guiding the two sides of the upper lead core groove plate. The distance between the two side baffles is equal to the width of the upper lead core groove plate and greater than the distance between the two anti-overflow adhesive pressure plates. A coating cover plate is provided above the two side baffles for pressing the upper lead core groove plate. The two sides of the upper lead core groove plate move within the channel formed by the coating cover plate and the anti-overflow adhesive pressure plate.

[0007] Preferably, the above-mentioned groove-shaped glue storage cavity has a glue return groove on the discharge side of the groove. The glue return groove is lower than the anti-overflow glue pressure plate. A second brush assembly and a second brush bristle provided on the side of the glue return groove are detachably connected to the machine body. The length direction of the second brush assembly and the arrangement of the second brush bristle are oriented towards the axial direction of the glue rolling shaft. The second brush bristle scrapes off the excess glue on the lower surface of the upper lead core groove plate.

[0008] Preferably, the aforementioned anti-overflow adhesive pressure plate and side baffle are provided with strip-shaped slots, through which bolts for fastening to the machine body are passed. The bolts also pass through bolt holes on the coating cover plate, and compression springs are fitted on the bolts. The two ends of the compression springs press against the bolt head and the upper surface of the coating cover plate.

[0009] Preferably, the wall of the above-mentioned groove-shaped glue storage cavity is provided with a through hole for passing through the glue roller shaft, and a sealing ring is provided between the through hole and the glue roller shaft.

[0010] Preferably, both the brush assembly and the second brush assembly are cuboid blocks and bristles arranged in a rectangular shape and fixed on the surface of the cuboid block.

[0011] Preferably, the above-mentioned trough-shaped glue storage cavity is equipped with a liquid level sensor, and the trough-shaped glue storage cavity is equipped with a glue inlet and a glue outlet.

[0012] Preferably, a first chain rotates cyclically on the machine body. Several push rods are fixedly arranged at equal intervals along the length of the first chain. The machine body is provided with a feeding cover plate located above the first chain and a U-shaped guide groove located on the feeding cover plate and arranged vertically. The U-shaped guide groove is used to guide and limit multiple stacked upper lead core groove plates. The feeding cover plate is provided with a channel to facilitate the extension of the push rods. The push rods push the upper lead core groove plates in the U-shaped guide groove to move along the travel direction of the first chain, so as to transport the upper lead core groove plates to the groove opening of the groove-shaped glue storage cavity.

[0013] Preferably, the push rod is T-shaped, with its lower part fixed to the chain link; the channel is arranged along the length of the first chain, and is strip-shaped, with a width greater than the width of the T-shaped push rod; a through slot is provided on the feeding cover plate at the end of the channel, for the upper part of the T-shaped push rod to pass through; a guide limiting plate is vertically provided on the feeding cover plate at the opening of the U-shaped guide channel, and the upper lead core slot plate is limited in the front-back and left-right directions by the U-shaped guide channel and the guide limiting plate; a support plate is rotatably hinged to the feeding cover plate, and the support plate has a horizontal position and an inclined position. In the horizontal position, the support plate is laid flat away from the channel to avoid the push rod from pushing the upper lead core slot plate to move; in the inclined position, the support plate is flipped to an inclined position to support all the upper lead core slot plates located in the U-shaped guide channel.

[0014] Preferably, the rotation direction of the first chain is opposite to that of the rubber roller, and the first chain and the rubber roller are driven to rotate by the same power shaft and power source. Specifically, the first chain has two first sprockets on both sides that drive the first chain to rotate. One of the first sprockets has a first gear at the end of its sprocket shaft. The first gear meshes with a second gear. The second gear is coaxially connected to a second rotating shaft and a second sprocket at the other end of the second rotating shaft. The end of the rubber roller is connected to a third sprocket. A chain is wound around and connected between the second sprocket and the third sprocket. The sprocket shaft serves as the input shaft of the power source.

[0015] The present invention discloses a working method for a glue-coating mechanism for an upper lead core trough plate, characterized in that: the glue-coating mechanism for the upper lead core trough plate includes a machine body and a glue-rolling mechanism mounted on the machine body. The glue-rolling mechanism includes a groove-shaped glue storage cavity and a glue-rolling shaft arranged within the groove-shaped glue storage cavity with its axial direction perpendicular to the traveling direction of the upper lead core trough plate. Several sets of detachably connected brush assemblies are evenly distributed along the circumferential direction on the glue-rolling shaft. Each brush assembly has bristles, and the length direction of the brush assembly and the arrangement of the bristles faces the axial direction of the glue-rolling shaft. Anti-overflow glue pressure plates are provided on both sides of the groove opening of the groove-shaped glue storage cavity. The distance between the two anti-overflow glue pressure plates is less than the width of the groove opening and also less than the length of the bristles arranged along the axial direction of the glue-rolling shaft. Side baffles for limiting and guiding the two sides of the upper lead core trough plate are provided above each anti-overflow glue pressure plate. The distance between the two side baffles is equal to the width of the upper lead core trough plate and greater than the distance between the two anti-overflow glue pressure plates. During operation, the upper lead core tray is conveyed by the conveying mechanism to the opening of the trough-shaped glue storage chamber. Under the action of the rotating glue roller, brush assembly, and brush bristles, the brush bristles pick up the glue in the trough-shaped glue storage chamber and evenly coat the tray. Side baffles are provided above the anti-overflow pressure plates to limit and guide the two sides of the upper lead core tray. The distance between the two side baffles is equal to the width of the upper lead core tray and greater than the distance between the two anti-overflow pressure plates, so that when the brush bristles rotate, the anti-overflow pressure plates will scrape off the glue on both sides of the brush, preventing the glue from overflowing from the gaps in the side baffles. A glue return trough is provided on the discharge side of the trough-shaped glue storage chamber opening. The glue return trough is lower than the anti-overflow pressure plates. Adjacent to the glue return trough is a second brush assembly detachably connected to the machine body and second brush bristles on the second brush assembly. The glue thickness can be controlled by adjusting the height of the brush bristles of the second brush assembly.

[0016] The working mechanism of the glue coating mechanism for the upper lead core slot plate of this invention is as follows: when the upper lead core slot plate moves to the slot opening position of the slot-shaped glue storage cavity, under the action of the rotating glue roller, brush assembly and brush bristles, the brush bristles dip into the glue in the slot-shaped glue storage cavity and are evenly coated on the lower surface of the upper lead core slot plate. Due to the setting of the anti-overflow glue pressure plate, the glue on both sides of the brush bristles is blocked by the anti-overflow glue pressure plate, which will scrape off the glue on both sides of the brush and prevent the glue from overflowing from the gap of the side baffles. In this case, even if the coating cover plate is raised (i.e., the height of the channel is increased) to accommodate the upper lead core slot plate with large curvature, no glue overflow will occur.

[0017] Therefore, through its ingenious structural design, this invention helps to reduce or avoid glue overflow while adapting to the application of glue to upper lead core groove plates with large warping. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings;

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the partial three-dimensional structure;

[0021] Figure 3 yes Figure 2 A schematic diagram of the elevation section of the centerline of the roller glue shaft (showing the positional relationship between the anti-overflow glue pressure plate, side baffle, and coating cover plate).

[0022] Figure 4 It is a sectional view of the elevation perpendicular to the axis of the rubber rolling shaft;

[0023] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure after removing the coating cover plate, anti-overflow adhesive pressure plate and side baffle;

[0024] Figure 6 This is a three-dimensional structural diagram of the first chain and push rod;

[0025] Figure 7 This is a three-dimensional structural diagram of the push rod and the coating cover plate;

[0026] Figure 8 This is a three-dimensional structural diagram of the upper lead core groove plate. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] The glue-applying mechanism for the upper lead core groove plate of the present invention includes a body 1 and a glue-rolling mechanism disposed on the body. The glue-rolling mechanism includes a groove-shaped glue storage cavity 2 and a glue-rolling shaft 3 disposed in the groove-shaped glue storage cavity 2 and whose axial direction is perpendicular to the traveling direction of the upper lead core groove plate. The groove-shaped glue storage cavity 2 can be formed by a groove-shaped shell or by machining a groove-shaped cavity on the body. The groove-shaped glue storage cavity 2 is filled with glue. The traveling direction of the upper lead core groove plate is horizontal, and the glue-rolling shaft 3 is also horizontally arranged. The traveling direction of the upper lead core groove plate and the glue-rolling shaft 3 are perpendicular to each other in different horizontal planes.

[0029] Several sets of detachable brush assemblies 4 are evenly distributed along the circumference of the roller shaft 3. In one embodiment, three, four, five, or six sets of brush assemblies 4 are provided in the circumferential direction. Each brush assembly 4 is provided with bristles 5. The length direction of the brush assembly 4 and the arrangement of the bristles 5 is oriented towards the axial direction of the roller shaft 3. Each brush assembly 4 includes a cuboid block and bristles arranged in a rectangular shape fixed on the surface of the cuboid block. The cuboid block is provided with bolt holes, and bolts are inserted into the bolt holes to lock with the roller shaft 3. The bolt locking can easily realize the detachable connection between the brush assembly 4 and the roller shaft 3. Since the roller shaft 3 needs to be sealed when it enters the wall of the groove-shaped glue storage cavity 2, the replacement of the brush assembly 4 through the detachable connection between the brush assembly 4 and the roller shaft 3 is convenient for disassembly and replacement, and it can be done without replacing the roller shaft 3, thus ensuring its sealing performance and long-term sealing.

[0030] An anti-overflow glue pressure plate 6 is provided at the opening of the groove-shaped glue storage cavity and on both sides of the travel path of the upper lead core groove plate. The anti-overflow glue pressure plate 6 is installed above the brush bristles and can scrape off the glue on both sides of the brush bristles when the brush bristles rotate. The scraped glue is still retained in the groove-shaped glue storage cavity. The distance between the two anti-overflow glue pressure plates is less than the width of the groove opening of the groove-shaped glue storage cavity and also less than the length of the brush bristles arranged axially along the glue rolling shaft. Due to the setting of the anti-overflow glue pressure plate (the distance between the two anti-overflow glue pressure plates is less than the width of the groove opening of the groove-shaped glue storage cavity and also less than the length of the brush bristles arranged axially along the glue rolling shaft), the glue on both sides of the brush bristles is blocked by the anti-overflow glue pressure plate, which will scrape off the glue on both sides of the brush and prevent the glue from overflowing from the gap of the two side baffles.

[0031] Above each of the anti-overflow adhesive pressure plates 6, there are side baffles 7 for limiting and guiding the two sides of the upper lead core groove plate. The distance between the two side baffles is equal to the width of the upper lead core groove plate and greater than the distance between the two anti-overflow adhesive pressure plates. Above the two side baffles, there is a coating cover plate 8 for pressing the upper lead core groove plate. The width of the coating cover plate 8 is greater than the distance between the two anti-overflow adhesive pressure plates. The two sides of the upper lead core groove plate move within the channel formed by the coating cover plate 8 and the anti-overflow adhesive pressure plate 6. The upper lead core groove plate is driven to move by a driving mechanism, the specific driving mechanism of which will be described in detail below.

[0032] Preferably, the outlet side of the above-mentioned trough-shaped glue storage cavity is provided with a glue return channel 9. The glue return channel is lower than the anti-overflow glue pressure plate 6. Adjacent to the side of the glue return channel is a second brush assembly 10 that is detachably connected to the machine body and a second brush bristle 11 provided on the second brush assembly. The length direction of the second brush assembly and the arrangement of the second brush bristle is oriented towards the axial direction of the glue rolling shaft. The second brush bristle 11 scrapes off excess glue from the lower surface of the upper lead core trough plate. The second brush assembly 10 also includes a cuboid block and brush bristles arranged in a cuboid shape fixed on the surface of the cuboid block. The second brush bristle 11 scrapes off excess glue from the lower surface of the upper lead core trough plate and returns it to the trough-shaped glue storage cavity along the glue return channel 9.

[0033] For ease of adjustment, the aforementioned anti-overflow pressure plate 6 and side baffle 7 are provided with strip-shaped slots 12. Bolts 13, which are connected and fastened to the machine body, pass through the strip-shaped slots 12. The bolts also pass through bolt holes on the coating cover plate 8. A compression spring 14 is fitted on the bolt 13. The two ends of the compression spring press against the bolt head and the upper surface of the coating cover plate 8. The feed end of the coating cover plate 8 is inclined. Because the compression spring 14 is fitted on the bolt 13, and the two ends of the compression spring press against the bolt head and the upper surface of the coating cover plate 8, the distance between the coating cover plate 8 and the anti-overflow pressure plate 6 (i.e., the thickness of the channel) can be adaptively adjusted. To accommodate the application of adhesive to the upper lead core channel plate with significant curvature, if a compression spring 14 is not installed, and the bolt head 13 is directly locked against the upper surface of the coating cover plate 8, the thickness of the channel will be a fixed value. When the upper lead core channel plate with significant curvature passes through, it will be blocked by the coating cover plate 8 and cannot pass through, resulting in intermittent machine stoppages. By installing a compression spring 14 between the bolt head 13 and the upper surface of the coating cover plate 8, and by making the feed end side of the coating cover plate 8 inclined, when the upper lead core channel plate with significant curvature passes through, the coating cover plate 8 is pushed up, increasing the thickness of the channel and allowing the upper lead core channel plate to pass through smoothly, thus avoiding machine stoppages caused by the upper lead core channel plate being unable to pass through.

[0034] The wall of the aforementioned groove-shaped glue storage cavity is provided with a through hole for passing through the glue roller shaft. A sealing ring or sealing structure is provided between the through hole and the glue roller shaft. The sealing ring can achieve the sealing of the groove-shaped glue storage cavity and prevent glue from overflowing. Since the brush assembly and the glue roller shaft are detachably connected, it is convenient to replace the brush assembly and avoid repeated disassembly of the sealing part, which helps to ensure the sealing performance and the durability of the sealing.

[0035] To control the amount of glue in the trough-shaped glue storage chamber, a liquid level sensor 15 is installed inside the trough-shaped glue storage chamber. The trough-shaped glue storage chamber is equipped with a glue inlet 16 and a glue outlet 17. A glue inlet pipe and a glue outlet pipe are respectively connected to the glue inlet pipe and the glue outlet pipe. An electrically controlled valve is connected to the electrically controlled valve, the liquid level sensor and the controller. The liquid level sensor 15 detects the amount of glue in the trough-shaped glue storage chamber, and then selectively opens or closes the electrically controlled valve of the glue inlet pipe or the glue outlet pipe. Usually, the amount of glue in the trough-shaped glue storage chamber can be kept lower than the glue roller, but higher than the lower end of the brush bristles.

[0036] The specific driving mechanism for the upper lead core tray is as follows: A first chain 18 rotates cyclically on the machine body. Several push rods 19 are fixedly arranged at equal intervals along the length of the first chain. The machine body is provided with a feeding cover plate 20 located above the first chain (the feeding cover plate 20 extends to the position of the second brush assembly 10, and the anti-overflow glue pressure plate 6 and the side baffle 7 are both installed on the upper surface of the feeding cover plate 20) and a U-shaped guide groove 21 located on the feeding cover plate and arranged vertically. The U-shaped guide groove is used to guide and limit the multiple stacked upper lead core trays. The feeding cover plate is provided with a channel 22 to facilitate the extension of the push rods 19. The push rods push the upper lead core trays one by one from bottom to top in the U-shaped guide groove along the traveling direction of the first chain to transport the upper lead core trays to the groove opening of the groove-shaped glue storage cavity.

[0037] The aforementioned push rod is T-shaped, with its lower part fixed to the chain link. The channel is arranged along the length of the first chain, and is strip-shaped. The width of the channel is greater than the width of the T-shaped push rod. A through slot 23 is provided on the feed cover plate at the end of the channel. The through slot is for the upper part of the T-shaped push rod to pass through. The upper part of the push rod is designed in a T-shape to increase the contact area when it pushes the upper lead core slot plate, thus avoiding excessive pressure from the push rod causing cracking of the upper lead core slot plate (when the push rod is straight, its contact area with the upper lead core slot plate is small, and it is easy to squeeze on the strip-shaped channel). (Pressure causes it to crack); The feeding cover plate is vertically provided with a guide limiting plate 24 at the slot opening of the U-shaped guide groove. The upper lead core slot plate is limited in the front, back, left and right directions by the U-shaped guide groove and the guide limiting plate; A support plate 25 is rotatably hinged to the feeding cover plate. The support plate has a horizontal position and an inclined position. In the horizontal position, the support plate is laid flat on the side away from the groove to avoid the push rod pushing the upper lead core slot plate to move. In the inclined position, the support plate is flipped to an inclined position to support all the upper lead core slot plates located in the U-shaped guide groove.

[0038] Multiple upper lead core slot plates (each upper lead core slot plate has multiple strip-shaped grooves for placing pencil leads, with the side having the strip-shaped grooves facing down) are stacked in a U-shaped guide groove (completed manually or by a robotic arm). As the first chain rotates cyclically, the push rod on the first chain pushes the bottom upper lead core slot plate to the side of the glue-rolling mechanism, and the glue-rolling mechanism applies glue to the strip-shaped grooves on the upper lead core slot plate.

[0039] To achieve synchronized operation, the rotation direction of the first chain 18 is opposite to that of the roller shaft 3 (the first chain 18 rotates clockwise and the roller shaft 3 rotates counterclockwise in the figure), and the first chain 18 and the roller shaft 3 are driven to rotate by the same power shaft and power source. Specifically, the first chain has two first sprockets 26 on both sides that drive the first chain 18 to rotate. One of the first sprockets has a first gear 27 at the end of its sprocket shaft. The first gear 27 meshes with a second gear 28. The second gear 28 is coaxially connected to a second rotating shaft 29 and a second sprocket 30 at the other end of the second rotating shaft. The end of the roller shaft is connected to a third sprocket 31. A chain 32 is wound around and connected between the second sprocket and the third sprocket. The sprocket shaft serves as the input shaft of the power source.

[0040] The power source transmits power to the glue-rolling mechanism through gears and sprockets. Because the rotation direction of the glue-rolling shaft 3 of the glue-rolling mechanism is opposite to the plate feeding direction (the rotation direction of the first chain 18), it ensures that the glue can be evenly coated on the upper lead core groove plate. The first chain 18 and the glue-rolling shaft 3 are driven to rotate by the same power shaft and power source, ensuring that the plate feeding speed and the glue-rolling speed are consistent. When the plate feeding speed is reduced / increased, the glue-rolling speed is matched accordingly. Because the power source is consistent, it can be ensured that the glue application will not be uneven due to speed mismatch during processing.

[0041] The present invention discloses a working method for a glue-coating mechanism for an upper lead core trough plate. The glue-coating mechanism includes a machine body and a glue-rolling mechanism mounted on the machine body. The glue-rolling mechanism includes a groove-shaped glue storage cavity and a glue-rolling shaft arranged within the groove-shaped glue storage cavity, with its axial direction perpendicular to the traveling direction of the upper lead core trough plate. Several sets of detachably connected brush assemblies are evenly distributed along the circumference of the glue-rolling shaft. Each brush assembly has bristles, and the length direction of the brush assembly and the bristles is oriented towards the axial direction of the glue-rolling shaft. Anti-overflow glue pressure plates are provided on both sides of the groove opening of the groove-shaped glue storage cavity. The distance between the two anti-overflow glue pressure plates is less than the width of the groove opening and also less than the length of the bristles arranged along the axial direction of the glue-rolling shaft. Side baffles for limiting and guiding the two sides of the upper lead core trough plate are provided above each anti-overflow glue pressure plate. The distance between the two side baffles is equal to the width of the upper lead core trough plate and greater than the distance between the two anti-overflow glue pressure plates. During operation, the upper lead core tray is conveyed to the opening of the trough-shaped glue storage chamber by the conveying mechanism. Under the action of the rotating glue roller, brush assembly, and brush bristles, the brush bristles pick up the glue in the trough-shaped glue storage chamber and evenly coat the tray. The anti-overflow pressure plate is provided with side baffles on both sides of the upper lead core tray for limiting and guiding. The distance between the two side baffles is equal to the width of the upper lead core tray and greater than the distance between the two anti-overflow pressure plates. This allows the anti-overflow pressure plates to scrape off the glue on both sides of the brush when the brush bristles rotate, preventing the glue from overflowing from the gaps between the side baffles. A glue return trough is provided on the discharge side of the trough-shaped glue storage chamber opening. The glue return trough is lower than the anti-overflow pressure plate. Adjacent to the glue return trough is a second brush assembly that can be detachably connected to the machine body and a second brush bristle on the second brush assembly. The glue thickness can be controlled by adjusting the height of the brush bristles of the second brush assembly.

[0042] Therefore, through its ingenious structural design, this invention helps to reduce or avoid glue overflow while adapting to the application of glue to upper lead core groove plates with large warping.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A mechanism for applying glue to an upper lead core slot plate, characterized in that: The machine body and the glue rolling mechanism arranged on the machine body, the glue rolling mechanism includes a groove type glue storage cavity and a glue rolling shaft arranged in the groove type glue storage cavity and perpendicular to the running direction of the upper lead core groove plate, a plurality of groups of detachable brush assemblies are uniformly distributed on the glue rolling shaft in the circumferential direction, the brush assemblies are provided with bristles, the length direction of the brush assemblies and the arrangement of the bristles are oriented to the axial direction of the glue rolling shaft, the slot part of the groove type glue storage cavity and located on both sides of the running track of the upper lead core groove plate is provided with glue overflow prevention plates, the glue overflow prevention plates are installed above the bristles and can scrape off the glue on both sides of the bristles when the bristles rotate, the distance between the two glue overflow prevention plates is less than the width of the slot part of the groove type glue storage cavity and also less than the length of the bristles arranged in the axial direction of the glue rolling shaft, the upper side of each glue overflow prevention plate is provided with a side baffle for limiting and guiding the two side edges of the upper lead core groove plate, the distance between the two side baffles is equal to the width of the upper lead core groove plate and greater than the distance between the two glue overflow prevention plates, the upper side of the two side baffles is provided with a coating cover plate for pressing the upper lead core groove plate, the two side parts of the upper lead core groove plate run in the channel formed by the coating cover plate and the glue overflow prevention plates; the discharge side of the slot of the groove type glue storage cavity is provided with a glue backflow groove, the side of the glue backflow groove is adjacent to a second brush assembly detachably connected with the machine body and a second bristle arranged on the second brush assembly, a through hole for penetrating the glue rolling shaft is arranged on the wall of the groove type glue storage cavity, and a sealing ring is arranged between the through hole and the glue rolling shaft.

2. The upper lead core grooved board gluing mechanism according to claim 1, characterized in that: The glue backflow groove is lower than the glue overflow prevention plates, the second brush assembly and the arrangement of the second bristle are oriented to the axial direction of the glue rolling shaft, and the second bristle scrapes off the excess glue on the lower surface of the upper lead core groove plate.

3. The upper lead core grooved board gluing mechanism according to claim 1 or 2, characterized in that: Strip-shaped grooves are arranged on the glue overflow prevention plates and the side baffles, bolts connected and fastened with the machine body are penetrated through the strip-shaped grooves, the bolts also penetrate through bolt holes on the coating cover plate, compression springs are sleeved on the bolts, and the two ends of the compression springs abut against the upper surface of the coating cover plate and the head of the bolt.

4. The upper lead core slot plate gluing mechanism according to claim 2, characterized in that: The brush assemblies and the second brush assembly are both cuboid blocks and bristles arranged in a rectangular shape on the surface of the cuboid blocks.

5. The upper lead core groove plate gluing mechanism according to claim 1 or 2, characterized in that: A liquid level sensor is arranged in the groove type glue storage cavity, and a glue inlet and a glue outlet are arranged on the groove type glue storage cavity.

6. The upper lead core grooved board gluing mechanism according to claim 1 or 2, characterized in that: A first chain is circularly rotated on the machine body, a plurality of push rods are fixed on the first chain at equal intervals in the length direction, a feeding cover plate is arranged above the first chain on the machine body, and a U-shaped guide groove is vertically arranged on the feeding cover plate, the U-shaped guide groove is used for guiding and limiting a plurality of stacked upper lead core groove plates, a groove is arranged on the feeding cover plate to facilitate the extension of the push rods, the push rods drive the upper lead core groove plates in the U-shaped guide groove to move in the running direction of the first chain, so as to convey the upper lead core groove plates to the slot part of the groove type glue storage cavity.

7. The upper lead core grooved board gluing mechanism according to claim 6, characterized in that: The push rod is T-shaped, and the lower part of the T-shaped push rod is fixed on the chain link; the channel is arranged along the length direction of the first chain, and the channel is in strip shape, the width of the channel is greater than the width of the T-shaped push rod, a through groove is arranged on the feeding cover plate and located at the end of the channel, and the through groove is used for the upper part of the T-shaped push rod to pass through; a vertical guide limiting plate is arranged on the feeding cover plate and opposite to the notch part of the U-shaped guide groove, the upper lead core groove plate is limited in the front-back and left-right directions by the U-shaped guide groove and the guide limiting plate; a support plate is rotatably connected to the feeding cover plate, the support plate has a horizontal work position and an inclined work position, when the support plate is in the horizontal work position, the support plate is arranged flat on the side away from the channel, so as to avoid the push rod pushing the upper lead core groove plate to move, and when the support plate is in the inclined work position, the support plate is turned to the inclined position to support all the upper lead core groove plates in the U-shaped guide groove.

8. The upper lead core slot plate gluing mechanism according to claim 6, characterized in that: The rotating direction of the first chain is opposite to the rotating direction of the rubber rolling shaft, and the first chain and the rubber rolling shaft are driven to rotate by the same power shaft and power source; specifically, the first chain has two first sprockets on two sides for driving the first chain to rotate, one of the first sprockets is provided with a first gear at the chain wheel shaft end, the first gear is engaged with a second gear, the second gear is coaxially connected with a second rotating shaft and a second sprocket arranged at the other end of the second rotating shaft, the end of the rubber rolling shaft is connected with a third sprocket, a chain is arranged around the second sprocket and the third sprocket, and the chain wheel shaft serves as an input shaft of the power source.

9. A working method of a gluing mechanism for upper lead core channel plate, characterized in that: The upper lead core groove plate gluing mechanism comprises a machine body and a rubber rolling mechanism arranged on the machine body, the rubber rolling mechanism comprises a groove type glue storage cavity and a rubber rolling shaft arranged in the groove type glue storage cavity and perpendicular to the running direction of the upper lead core groove plate, a plurality of groups of detachably connected brush assemblies are uniformly distributed on the rubber rolling shaft in the circumferential direction, the brush assemblies are provided with bristles, the length direction of the brush assemblies and the bristles arranged on the brush assemblies is towards the axial direction of the rubber rolling shaft, the both sides of the notch part of the groove type glue storage cavity are provided with glue overflow prevention pressing plates, the distance between the two glue overflow prevention pressing plates is less than the width of the notch part of the groove type glue storage cavity and also less than the length of the bristles arranged in the axial direction of the rubber rolling shaft, the upper parts of the glue overflow prevention pressing plates are provided with side baffles for limiting and guiding the two side edges of the upper lead core groove plate, the distance between the two side baffles is equal to the width of the upper lead core groove plate and greater than the distance between the two glue overflow prevention pressing plates; in working, the upper lead core groove plate is conveyed to the notch position of the groove type glue storage cavity by the conveying mechanism, under the action of the rotating rubber rolling shaft, the brush assemblies and the bristles, the bristles dip the glue in the groove type glue storage cavity and uniformly coat the glue on the groove plate, the upper parts of the glue overflow prevention pressing plates are provided with side baffles for limiting and guiding the two side edges of the upper lead core groove plate, the distance between the two side baffles is equal to the width of the upper lead core groove plate and greater than the distance between the two glue overflow prevention pressing plates, so that when the bristles rotate, the glue overflow prevention pressing plates can scrape off the glue on the two sides of the brush, preventing the glue from overflowing from the gap between the two side baffles; a glue backflow groove is arranged on the discharge side of the notch of the groove type glue storage cavity, the glue backflow groove is lower than the glue overflow prevention pressing plates, a second brush assembly detachably connected with the machine body and second bristles arranged on the second brush assembly are arranged on the side of the glue backflow groove, the glue thickness can be controlled by adjusting the height of the bristles of the second brush assembly.

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