bill paster

Abstract

The present invention discloses a bill paster, belonging to the technical field of office supplies. It mainly comprises a glue tank, a pressure cover, a cylindrical glue roller in the glue tank, and a pressure cover opening and closing drive mechanism; the drive mechanism enables the pressure cover to be opened and closed relative to the glue tank. When the pressure cover is opened at a large angle, paper can enter between the glue roller and the pressure cover; when it is opened at a small angle, a narrow and curved paper outlet channel is formed between the lower surface of the pressure cover, the glue roller, and the glue tank opening. When the paper is pulled out of this channel, the glue roller can be driven to rotate, applying the glue in the glue tank to the lower surface of the paper. When not in use, the pressure cover tightly covers the notch of the glue tank to prevent the glue from drying. The present invention aims to provide a bill paster; it helps users quickly and conveniently paste bills such as invoices, vouchers, or other papers flatly, effectively saving glue and glue application time, and preventing glue from adhering to hands or other places where glue is not required.

Description

Technical Field

[0001] The invention belongs to the technical field of office supplies, and in particular relates to a bill paster. Background Art

[0002] For a long time, accountants and other office workers have commonly used three methods to apply glue to invoices, vouchers, and other documents, each with its own drawbacks. (For ease of explanation, the following example uses a document or other paper placed on a table for gluing, with the two sheets to be glued together referred to as the "upper sheet" and the "lower sheet" respectively.) The first method involves flipping the upper sheet over, glue-side up. Pressing it against other paper on the table (such as scrap paper) or against your finger, you gradually apply glue. Then, flipping the upper sheet over, glue-side down, adjusts and positions it, and finally presses it down with your hand until it aligns perfectly with the lower sheet. This method has the disadvantages of easily getting glue on unwanted areas. It also makes it difficult to adjust the glue position after applying, as the glued sheet can easily stick prematurely during adjustments, resulting in uneven gluing. The second method involves first adjusting and positioning the sheet, holding the document in place, and lifting only the corner or edge of the upper sheet where it will be glued. Applying glue to the lower sheet, and finally pressing it down with your hand, secures it. The drawback of this method is that it's difficult to control the area where glue is applied, making it easy to over- or under-apply. If the area is too large, glue can get on your hands when you press it, while if it's too small, the adhesive won't adhere securely. If glue isn't applied to the corners, they'll lift up, creating an unsightly effect. A third method also involves first determining the adhesive placement. Hold the bill still with your hand, then lift the corner or edge of the top bill and place it against your finger while applying glue to the back of the bill. The drawbacks of this method are that applying glue is difficult and it can easily get glue on your hands.

[0003] The above three methods are not easy to control the amount and uniformity of glue applied, and often cause uneven documents after pasting due to excessive or uneven glue application; there are also shortcomings such as slow glue application speed and unsanitary conditions; sometimes it is necessary to wait for the liquid glue to flow out from the bottom of the inverted bottle, wasting precious time. Summary of the Invention

[0004] Currently, there are problems in the process of pasting bills, such as slow glue application speed, uneven glue application, easy adhesion to hands or other places where glue is not required, inconvenience in opening or closing the glue bottle cap, and time wasted waiting for glue to flow out from the bottom of the bottle. The purpose of the present invention is to address the above-mentioned deficiencies in the existing technology and provide a simple handheld bill paster for applying glue and pasting bills such as invoices and accounting vouchers.

[0005] The technical solution of the present invention is achieved as follows: a bill applicator includes a glue tank with an upper opening for holding liquid glue, a pressure cover positioned above the glue tank opening, a cylindrical gluing roller rotatably positioned within the glue tank, and a drive mechanism for controlling the opening and closing of the pressure cover. The drive mechanism allows the pressure cover to be opened relative to the notch of the glue tank. The opening angle can be large or small. When opened at a large angle, paper can pass between the pressure cover and the gluing roller. When opened at a small angle, a narrow, curved paper discharge path is formed between the lower surface of the pressure cover, the outer surface of the gluing roller, and the notch of the glue tank. In this case, when the bill applicator or paper is pulled out of the paper discharge path, the back side (i.e., the downward side) of the paper is forced to contact the surface of the gluing roller. If the lower portion of the gluing roller contacts the glue in the glue tank, the paper, when pulled out of the paper discharge path, rotates with the gluing roller, thereby continuously applying glue to the back side of the paper without transferring glue to the upward side of the paper, hands, or other areas where glue is not required. When not in use, the lower surface of the bill applicator's cover fits over the notch in the glue tank, sealing the tank and isolating the air inside. This prevents the glue from drying out and solidifying when not in use. When the lower surface of the cover fits over the notch in the glue tank, a small gap remains between the lower surface of the cover and the outer and cylindrical surfaces of the glue roller, preventing contact with the glue coating or droplets on the roller.

[0006] As a preferred solution, a glue injection port with an upper opening is provided on one side of the glue tank, and the opening of the glue injection port can be connected to a glue bottle or a sealing cover, and the glue bottle or the sealing cover can seal the opening of the glue injection port; a connecting channel is provided between the bottom of the glue injection port and the bottom of the glue tank.

[0007] As a preferred solution, the driving mechanism includes a base, a pressure rod and an elastic component, the middle part of the pressure rod is hinged to the base; the glue groove is arranged at one end of the base; the pressure cover is arranged at one end of the pressure rod; the elastic component is arranged between the base and the pressure rod, located at the hinge between the base and the pressure rod, providing the pressure rod with a force that can close the pressure cover relative to the glue groove.

[0008] As a preferred embodiment, a wedge-shaped tip is provided on the side of the glue groove away from the base; the side of the wedge-shaped tip away from the glue groove is sharp, and the bottom surface of the side of the wedge-shaped tip away from the glue groove is flat; when in use, the sharp part of the above-mentioned wedge-shaped tip can be used to insert under the paper to be coated with glue, and the paper to be coated with glue can be slightly lifted up so that its edge part enters between the pressure cover and the glue coating roller below it at a certain angle to the table top, so that the paper does not hit the glue coating roller with glue on the surface when entering, thereby avoiding the side that does not need to be coated with glue from touching the glue on the glue coating roller. Furthermore, a shift fork is provided on the pressure rod; the top surface of the wedge-shaped tip is provided with a flap linked to the pressure rod, the flap is hinged to the wedge-shaped tip on one side away from the glue groove, and a pull rod wire is connected between the other side of the flap and the shift fork. When the pressure cover is opened, the pressure rod drives the flap to flip upward to a certain angle through the pull rod wire to guide the paper to avoid hitting the glue roller with glue on the surface when entering between the pressure cover and the glue roller below it, thereby avoiding the side that does not need to be coated with glue from touching the glue on the glue roller.

[0009] As a preferred solution, an anti-fall support plate connected to the base is provided under the pull rod steel wire; an anti-fall side plate connected to the base is provided on the outside of the pull rod steel wire, and the anti-fall side plate is used to prevent the pull rod steel wire from falling off the fork groove of the shift fork.

[0010] As a preferred embodiment, the top of the glue trough is an inclined surface, with the lower end of the inclined surface located on the side of the glue trough near the wedge-shaped tip and the higher end of the inclined surface located on the other side of the glue trough. The gap between the higher trough wall and the surface of the glue roller is small. When the glue roller, which is coated with glue, rotates from bottom to top over the trough wall, the trough wall scrapes off excess glue and evenly distributes the glue on the surface of the glue roller. The gap between the lower trough wall and the surface of the glue roller is large. When the glue roller, which is coated with glue, rotates from top to bottom over the lower trough wall, the glue on its surface does not stick to the trough opening.

[0011] As a preferred embodiment, the base is provided with a handle at one end away from the glue tank. The handle is convenient for the user to grasp. A lever connected to the gland extends above the handle at the end away from the gland. When the user grasps the handle, they can press the lever with their thumb to open the gland relative to the notch of the glue tank. When the lever is released, the elastic component causes the end of the lever away from the gland to move upward, causing the gland to move toward the notch of the glue tank.

[0012] As a preferred embodiment, the drive mechanism further comprises a movable grip plate and a pull cable. A first pin hole is defined at the bottom of the movable grip plate, and a second pin hole is defined at the top of the movable grip plate. The base is hingedly connected to the first pin hole. The movable grip plate is connected to the pull cable via the second pin hole. When the user is not gripping the handle and the pressure cover is tightly closed over the notch of the glue tank, the pull cable is in a relaxed state. When the user grips the handle, they grasp the movable grip plate together with the handle, moving the movable grip plate toward the palm of their hand around the hinged connection between the movable grip plate and the base. If the pressure cover is previously closed over the notch of the glue tank, the pull cable becomes taut and slightly pulls the pressure rod downward, causing the pressure cover to open at a slight angle relative to the notch of the glue tank. If the pressure rod is then released after being pressed, and the end of the pressure rod away from the pressure rod moves upward, the pressure cover moving toward the notch of the glue tank. The pull cable becomes taut before the pressure cover is fully closed, preventing the pressure cover from fully closing and causing it to open at a slight angle relative to the notch of the glue tank. In both of these situations, a narrow and curved paper exit path is formed between the lower surface of the pressure cover, the outer surface of the glue roller, and the glue tank slot. When the user releases the handle, the elastic assembly causes the pressure rod and movable grip plate to return to their un-gripped state, tightly closing the pressure cover over the glue tank slot and relaxing the tension cable. The tension cable can be a non-stretchable rope or chain.

[0013] As a preferred solution, a hinge structure is provided at the hinge of the pressure rod and the base, and the hinge structure includes a tooth groove and a tooth protrusion arranged on both sides of the pressure rod and the base; the bottom of the tooth groove and the end of the tooth protrusion are coaxial cylindrical contact surfaces, and can mesh with each other to form a friction width; when the tooth groove and the tooth protrusion are engaged, the pressure cover can open and close relative to the glue groove around the axis of its cylindrical contact surface; further, the elastic component includes a C-shaped retaining spring, a first retaining groove arranged on the pressure rod and a second retaining groove arranged on the base; the upper and lower arms of the C-shaped retaining spring are respectively snap-connected to the first retaining groove.

[0014] The first clamping slot is in the second clamping slot, and the hinge structure is located between the upper and lower arms of the C-shaped clamping spring.

[0015] As a preferred solution, bearing seats can be provided at both ends of the glue tank, and both ends of the glue coating roller are placed in the bearing seats through bearings, so that the rotation of the glue coating roller is smoother.

[0016] As a preferred solution, to enhance the sealing between the gland and the glue tank in a fully closed state, a sealing device such as a sealing ring, a sealing gasket, or a sealing adhesive coating can be provided at the interface between the notch of the glue tank and the gland where the notch is sealed. The sealing device can be mounted or attached to the notch of the gland or the glue tank.

[0017] The beneficial effects of the present invention after adopting the above structure are as follows: the bill paster can adjust the pasting position of the bill before applying glue. After determining the pasting position, the part of the bill that does not need to be applied with glue can be pressed by hand without moving, and an appropriate amount of glue can be quickly and evenly applied to the back side of the edge area of ​​the bill (that is, the downward side) without turning the bill over. Then, it can be quickly spread and pressed to make it fit smoothly, avoiding applying glue to hands or other places where glue is not needed; and the glue can be sealed and stored when not in use to prevent the glue from drying and solidifying; the bill paster is light and compact, easy to hold and operate; simple in structure, and easy to disassemble, clean and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0019] Figure 1 Schematic diagram of assembly in an embodiment of the present invention;

[0020] Figure 2 1 is an exploded view of parts in an embodiment of the present invention;

[0021] Figure 3 The structure of the base in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 4 The structure of the base in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 5 Schematic diagram of the linkage principle between the pressure rod and the flap in an embodiment of the present invention;

[0024] Figure 6 This is a schematic structural diagram of a movable grip plate in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of a glue bottle installed on the glue injection port in an embodiment of the present invention;

[0026] Figure 8 A longitudinal sectional view of the gland in a fully opened state according to an embodiment of the present invention;

[0027] Figure 9 A longitudinal sectional view of the gland in an embodiment of the present invention when the gland is opened at a slight angle;

[0028] Figure 10 It is a mid-longitudinal cross-sectional view of the gland in a fully covered state according to an embodiment of the present invention.

[0029] In the figure: 1-base, 2-pressure rod, 3-glue groove, 4-glue coating roller, 5-pressure cover, 6-elastic component, 7-wedge-shaped tip, 8-movable grip plate, 9-hinge structure, 10-pull cable, 11-glue injection port, 12-glue bottle, 13-connecting channel, 14-handle, 15-bearing, 16-pin, 17-anti-fall support plate, 18-pull rod steel wire anti-detachment side plate, 21-shift fork, 22-flip plate, 23-pull rod steel wire, 52-paper output channel; 61-C-shaped retaining spring, 62-first card slot, 63-second card slot; 81-first pin hole, 82-second pin hole, 91-tooth groove, 94-tooth protrusion. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0031] like Figure 1-10 The bill gluing device shown in the figure is characterized by comprising a glue tank 3 with an upper opening, a pressure cover 5 disposed above the opening of the glue tank 3, and a cylindrical gluing roller 4 rotatably disposed within the glue tank 3. Furthermore, the device includes a drive mechanism for controlling the opening and closing of the pressure cover 5. The drive mechanism allows the pressure cover 5 to be opened relative to the notch of the glue tank. The opening angle can be large or small. When opened at a large angle, paper can enter between the pressure cover 5 and the gluing roller 4. When opened at a small angle, a narrow and curved paper discharge passage 52 is formed between the lower surface of the pressure cover 5, the outer surface of the gluing roller 4, and the notch of the glue tank 3. When not in use, the pressure cover 5 tightly covers the notch of the glue tank 3, sealing the glue tank 3, and the lower surface of the pressure cover 5 does not contact the outer surface of the gluing roller 4 or the glue thereon.

[0032] In this embodiment, the drive mechanism includes a base 1, a pressure rod 2, and an elastic component 6. The middle portion of the pressure rod 2 is hinged to the base 1. The glue groove 3 is located at one end of the base 1. The pressure cover 5 is located at one end of the pressure rod 2. The elastic component 6 is located at the hinged connection between the pressure rod 2 and the base 1. The elastic component 6 applies a force to the pressure rod 2, which forces the pressure cover 5 to close relative to the glue groove 3. The control component is located between the base 1 and the pressure rod 2.

[0033] In this embodiment, a handle 14 is provided on the end of the base 1 away from the glue tank 3. The user grasps the bill applicator with handle 14 to apply glue. Preferably, a pressure rod 2 extends above handle 14, allowing the user to press down on the pressure rod 2 with the thumb of the hand holding handle 14, thereby opening the pressure cover 5 relative to the notch of the glue tank 3. When the pressure rod 2 is released, the elastic component 6 causes the end of the pressure rod 2 away from the pressure cover 5 to move upward, causing the pressure cover 5 to move toward the notch of the glue tank 3.

[0034] Before use, a certain amount of glue must be injected into the glue tank 3, immersing the lower end of the gluing roller 4 in the glue. While holding the handle 14, the user grasps the movable grip plate 8 together with the handle 14 and uses the thumb of the hand holding the handle to depress the pressure lever 2 in the drive mechanism, causing the pressure cover 5 to open to an angle of approximately 15 to 30 degrees relative to the glue tank 3. While holding down one side of the paper to be glued with the other hand, insert the wedge-shaped tip 7 under the edge of the paper to be glued, forcing the edge of the paper into the space between the pressure cover 5 and the gluing roller 4. The pressure lever 2 is then released. Driven by the C-shaped retaining spring 61, the pressure cover 5 moves toward the glue tank 3, closing. Retained by the cable 10 connecting the movable grip plate 8 and the pressure lever 2, the pressure cover 5 cannot fully close, remaining slightly open by 1 to 1.5 degrees. The bill applicator is then pulled in the opposite direction, or the paper is pulled, to be withdrawn from the paper outlet 52. During the paper extraction process, the gluing roller 4 is driven to rotate to gluing the paper.

[0035] In this specific embodiment, a wedge-shaped tip 7 is provided on the side of the glue groove 3 away from the base 1; the side of the wedge-shaped tip 7 away from the glue groove 3 is sharp, and the bottom surface of the side of the wedge-shaped tip 7 away from the glue groove 3 is flat; when in use, the wedge-shaped tip 7 can be used to slightly lift the paper to be coated with glue, so that the edge of the paper enters between the pressure cover 5 and the glue roller at a certain angle to the table top, so that the paper does not hit the glue roller 4 with glue on the surface when entering, avoiding the side that does not need to be coated with glue from touching the glue on the glue roller 4.

[0036] After gluing is completed, the flat bottom of the wedge-shaped tip 7 can be used instead of the hand to stroke and press the glued paper to make the paper fit flat and avoid glue getting on the hand.

[0037] When the bill paster is not in use, the user releases the handle 14. Under the action of the elastic component 6, the pressure rod 2 and the movable grip plate 8 return to their original positions, the cable 10 returns to a relaxed state, and the pressure cover 5 tightly covers the notch of the glue groove 3 to seal the glue groove 3 to prevent the glue in the glue groove 3 from drying and solidifying when not in use.

[0038] In this specific embodiment, a glue injection port 11 with an upper opening is provided on one side of the glue tank 3. The opening of the glue injection port 11 can be connected to a glue bottle 12 or a sealing cover, and the glue bottle 12 or the sealing cover can seal the opening of the glue injection port 11; a connecting channel 13 is provided between the bottom of the glue injection port 11 and the bottom of the glue tank 3; the user can inject glue into the glue tank 3 through the glue injection port 11, and when the glue level in the glue tank 3 is lower than the highest point of the opening of the connecting channel 13 to a certain When the glue inlet 11 is at a certain height, air enters the glue inlet 11 through the connecting channel 13. As air enters the glue inlet 11, glue is replenished and enters the glue tank 3 to maintain an appropriate glue level in the glue tank 3. The glue bottle 12 and the sealing cap can be sealed with the glue inlet 11 using threads or a snap ring. Maintaining a seal between the glue inlet 11 and the glue bottle 12 or the sealing cap can prevent the glue in the glue inlet 11 from drying and solidifying. The glue bottle 12 can be a common glue bottle on the market. When the glue inlet 11 is inserted into the glue bottle, the glue bottle can remain in an inverted insertion position to facilitate the outflow of glue. Air can also enter the water inlet 11 through the opening of the connecting channel 13 located in the glue tank 3, and then enter the glue bottle from the glue inlet 11. Furthermore, the sealing cap can be a rubber plug or other component that can seal the glue inlet.

[0039] In this embodiment, the pressure lever 2 is provided with a shift fork 21; the top surface of the wedge-shaped prong 7 is provided with a flap 22 that is linked to the pressure lever 2. The side of the flap 22 facing away from the glue groove 3 is hinged to the wedge-shaped prong 7, and a pull rod wire 23 is connected between the other side of the flap 22 and the shift fork 21. When the pressure cover 5 is opened, the pressure lever 2 drives the flap 22 upward to a certain angle via the pull rod wire 23. This allows the paper to be guided between the pressure cover 5 and the glue roller without having to use the end of the wedge-shaped prong 7 to lift the paper. The paper can also be guided so that it does not hit the glue roller 4, which has glue on its surface, and thus prevents the side that does not need to be glued from contacting the glue on the glue roller 4. Furthermore, the pull rod wire 23 is made of high-hardness spring steel wire or stainless steel wire; the middle section of the pull rod wire 23 is provided with two bends, which enable the pull rod wire 23 to transmit sufficient thrust and tension to drive the flap 22 to flip up and down with the opening and closing of the pressure cover 5, while having sufficient elasticity in the length direction to achieve the following effects: when the pressure cover 5 is in a slightly open state relative to the notch of the glue groove 3, the flap 22 has been rotated to the lowest position, and in the process of the pressure cover 5 changing from the slightly open state to the fully closed state, the position of the flap 22 does not change. In the process of changing the state of the pressure cover 5 from being completely closed to being slightly opened, the shift fork 21 rotates with one end of the pull rod wire 23 placed in its fork groove, causing the pull rod wire 23 to undergo elastic stretching deformation, and the pressure cover 5 is completely closed. In the process of changing the pressure cover 5 from being completely closed to being slightly opened, the shift fork 21 rotates with one end of the pull rod wire 23 placed in its fork groove in the opposite direction, and the pull rod wire 23 gradually recovers to an unstretched state in the length direction, and the position of the flap 22 remains at the lowest position and does not flip up due to the rotation of the shift fork 21, so as to avoid the flap 22 scraping the glue on the paper after being flipped up.

[0040] In this specific embodiment, an anti-fall support plate 17 connected to the base 1 is provided under the pull rod wire 23; an anti-fall side plate 18 connected to the base 1 is provided on the outside of the pull rod wire 23, and the anti-fall side plate 18 is used to prevent the pull rod wire 23 from falling off from the fork groove of the fork 21.

[0041] In this embodiment, the top of the glue groove 3 is an inclined surface, with the lower end of the inclined surface located on the side of the glue groove 3 near the wedge-shaped tip 7 and the higher end of the inclined surface located on the other side of the glue groove 3. Setting the top of the glue groove 3 as an inclined surface can help prevent glue on the lower surface of the paper from adhering to the notch of the glue groove 3, the flap 22, or the wedge-shaped tip 7 when the paper is pulled out. The distance between the tall wall of the glue groove 3 and the outer surface of the glue roller 4 is small, allowing the wall to scrape off excess glue and improve the uniformity of the glue on the surface of the glue roller 4. The distance between the short wall of the glue groove 3 and the outer surface of the glue roller 4 is large, thus preventing glue on the glue roller 4 from adhering to the notch of the glue groove 3.

[0042] In this specific embodiment, the drive mechanism further includes a movable grip plate 8 and a cable 10. A first pin hole 81 is provided at the bottom of the movable grip plate 8, and a second pin hole 82 is provided at the top of the movable grip plate 8. The base 1 is hingedly connected to the first pin hole 81 at the bottom end of the movable grip plate 8. The movable grip plate 8 is connected to the cable 10 via the second pin hole 82. When the user is not holding the handle 14 and the pressure cover 5 is tightly covering the notch of the glue tank 3, the cable 10 is in a relaxed state. When the user holds the handle 14, they can grasp the movable grip plate 8 and the handle 14 together, moving the movable grip plate 8 toward the palm of the hand around the hinged connection between the movable grip plate 8 and the base 1. If the pressure cover 5 is previously covering the notch of the glue tank 3, the cable 10 will be tightened and slightly pull the pressure rod 2 downward, causing the pressure cover 5 to open at a slight angle relative to the notch of the glue tank 3. If the pressure rod 2 is released after being pressed, and the end of the pressure rod 2 away from the pressure cover moves upward, and the pressure cover 5 moves toward the notch of the glue tank 3, the cable 10 will be tensioned before the pressure cover 5 is fully closed, preventing the pressure cover 5 from fully closing and instead opening at a slight angle relative to the notch of the glue tank 3. In both cases, a narrow and curved paper discharge channel 52 is formed between the lower surface of the pressure cover 5, the outer surface of the glue roller 4, and the notch of the glue tank 3. When the user releases the handle 14, the elastic component 6 acts to return the pressure rod 2 and the movable grip 8 to their un-gripped state, the pressure cover 5 tightly covers the notch of the glue tank 3, and the cable 10 returns to its relaxed state. The cable 10 can be a non-stretchable rope or chain. When the paper is pulled out when the paper outlet channel 52 is formed, it can prevent the pressing cover 5 and the notch of the glue groove 3 from clamping the paper too tightly when the paper is pulled out, which may cause important documents to be torn. Secondly, it can prevent the pressing cover 5 from being completely closed when glue is already applied to the lower surface of the paper, causing the glue to stick to the notch of the glue groove 3 and then to stick to the pressing cover 5, so that the glue will be carried to the side of the paper that does not need to be glued during the next gluing operation.

[0043] In this specific embodiment, in order to enhance the sealing performance between the pressure cover 5 and the glue groove 3 when the pressure cover 5 is in a fully closed state, a sealing device such as a sealing ring, a sealing gasket or a sealing adhesive coating can be provided at the interface where the notch of the glue groove 3 and the pressure cover 5 are sealed. The sealing device can be installed or attached to the pressure cover 5 or the notch of the glue groove 3. In this embodiment, a neutral silicone sealant is applied to the interface where the notch of the glue groove 3 and the pressure cover 5 are sealed; a thin layer of grease is evenly applied to the interface where the pressure cover 5 and the notch of the glue groove 3 are sealed, and then the pressure cover 5 is pressed. After the sealant is completely cured, the pressure cover 5 is opened and the excess sealant is removed; in this way, when the pressure cover 5 is fully closed, the sealing interface between it and the notch of the glue groove 3 can be better fitted to achieve a better sealing effect.

[0044] In this embodiment, bearing seats can be respectively provided at both ends of the glue tank 3, and the two ends of the glue roller 4 are placed in the bearing seats through bearings 15, so that the rotation of the glue roller 4 is smoother. Stainless steel miniature rolling bearings are used in this embodiment.

[0045] In this specific embodiment, the fitting sealing interface between the glue groove 3 and the pressure cover 5 at the axial end of the glue coating roller 4 is a developable curved surface or an approximately developable curved surface, and the main line of this developable curved surface is parallel to the axis of the glue coating roller 4, and the fitting sealing interface coincides or nearly coincides with the outer circular surface of the glue coating roller 4 as much as possible, so that when the pressure cover 5 is in a slightly open state relative to the notch of the glue groove 3, the paper will not be creased or stuck when it is pulled out from the narrow and curved paper output channel 52 formed between the pressure cover 5, the glue coating roller 4 and the periphery of the notch of the glue groove 3.

[0046] In this embodiment, the hinged connection between the pressure rod 2 and the base 1 is provided with a hinge structure 9. The hinge structure 9 includes a tooth groove 91 and a tooth protrusion 94 disposed on either side of the pressure rod 2 and base 1. The bottom of the tooth groove 91 and the end of the tooth protrusion 94 form coaxial cylindrical contact surfaces that mesh with each other to form a friction amplitude. When the tooth groove 91 and the tooth protrusion 94 engage, the pressure cover 5 can open and close relative to the glue groove 3 about the axis of its cylindrical contact surface. This arrangement facilitates assembly and disassembly of the bill applicator. Alternatively, two tooth grooves, or one tooth groove and one tooth protrusion, can be provided on either side of the pressure rod 2. Similarly, two tooth protrusions, or one tooth protrusion and one tooth groove, can be provided on either side of the base 1. This can enhance the stability of the hinged structure. The hinge structure 9 can also employ a pivot connection structure or a hinge structure known in the prior art.

[0047] In this specific embodiment, the elastic component 6 includes a C-shaped retaining spring 61, a first retaining groove 62 provided on the pressure rod 2, and a second retaining groove 63 provided on the base 1; the upper and lower arms of the C-shaped retaining spring 61 are respectively snap-connected to the first retaining groove 62 and the second retaining groove 63, and the hinge structure 9 is located between the upper and lower arms of the C-shaped retaining spring 61; under the action of the C-shaped retaining spring 61, the tooth groove 91 and the tooth protrusion 94 are engaged with each other to connect, realizing the hinge function, so that the pressure cover 5 can be opened and closed relative to the notch of the glue groove 3; the C-shaped retaining spring 61 adopts the retaining spring shaped like the letter "C" on the plastic clothespin commonly used at home, or a retaining spring with a similar structure. The spring is suitable for easy installation and removal, so that the pressure cover 5 can be removed when necessary, and then the glue coating roller 4 and the bearings 15 at both ends thereof, the glue coating roller 4 and the bearings 15 at both ends, the glue groove 3, and the connecting channel 13 can be cleaned; the C-shaped retaining spring 61 can be installed by pressing into the first retaining groove 62 of the pressure rod 2 and the second retaining groove 63 on the base 1; when the C-shaped retaining spring 61 is pulled out from the above-mentioned first and second retaining grooves 63, the pressure rod 2 and the base 1 that are engaged with the tooth groove 91 and the tooth protrusion 94 can be disassembled; the elastic component 6 can also adopt any other elastic structure in the prior art that can enable the pressure cover 5 to cover the glue groove 3.

[0048] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field can, without departing from the scope of the technical features of the present invention, make partial changes or modifications to the technical contents disclosed in the present invention and make equivalent embodiments without departing from the technical features of the present invention. Such modifications still fall within the scope of the technical features of the present invention.

Claims

1. A bill paster, characterized in that: The invention comprises a glue tank (3) with an upper opening, a pressure cover (5) arranged above the opening of the glue tank (3), a cylindrical glue coating roller (4) arranged in the glue tank (3) and rotatable, and also comprises a driving mechanism for controlling the opening and closing of the pressure cover (5); the driving mechanism is used to make the pressure cover (5) open relative to the notch of the glue tank (3), and the opening angle can be large or small; when opened at a large angle, paper can enter between the pressure cover (5) and the glue coating roller (4); when opened at a small angle, a narrow and curved paper discharge channel (52) is formed between the lower surface of the pressure cover (5), the outer surface of the glue coating roller (4) and the notch of the glue tank (3); when not in use, the pressure cover (5) is tightly covered on the notch of the glue tank (3), sealing the glue tank (3), and the lower surface of the pressure cover (5) does not contact the outer surface of the glue coating roller (4) and the glue thereon; The driving mechanism comprises a base (1), a pressure rod (2) and an elastic component (6); the middle portion of the pressure rod (2) is hinged to the base (1); the glue groove (3) is arranged at one end of the base (1); the pressure cover (5) is arranged at one end of the pressure rod (2); the elastic component (6) is arranged between the base (1) and the pressure rod (2), and is located at the hinged portion between the base (1) and the pressure rod (2), and provides the pressure rod (2) with a force that enables the pressure cover (5) to close relative to the glue groove (3); The driving mechanism further comprises a movable gripping plate (8) and a cable (10), wherein a first pin hole (81) is provided at the lower portion of the movable gripping plate (8), a second pin hole (82) is provided at the upper portion of the movable gripping plate (8), and the base (1) is hinged on the first pin hole (81); the movable gripping plate (8) is connected to the cable (10) via the second pin hole (82); the size and shape of the movable gripping plate (8) and the hinged position of the lower end of the movable gripping plate (8) and the base (1) are such that when the user holds the handle (14), the movable gripping plate (8) and the handle (14) can be conveniently held together, and the movable gripping plate (8) can be moved towards the palm center by a certain stroke; the length of the cable (10), the rotation stroke of the movable gripping plate (8), the connection position of the cable (10) with the movable gripping plate (8) and the pressure rod (2) are such that The movable gripping plate (8) is arranged such that the cable (10) is in a relaxed state when the movable gripping plate (8) is not pinched. Under the action of the elastic component (6), the pressure cover (5) can be tightly covered on the notch of the glue groove (3). When the movable gripping plate (8) is pinched until the movable gripping plate (8) rotates to the maximum stroke, the cable (10) is tightened and can slightly pull the pressure rod (2) downward, so that the pressure cover (5) opens a small angle relative to the notch of the glue groove (3). A narrow and curved paper discharge channel (52) is formed between the lower surface of the pressure cover (5), the outer surface of the glue coating roller (4) and the notch of the glue groove (3). The paper is drawn out from the paper discharge channel, and the paper can contact the outer surface of the glue coating roller (4), but the glue on the lower surface of the paper will not be smeared on the notch of the glue groove (3); the cable (10) is a rope or chain that is not easy to stretch. A glue injection port (11) with an upper opening is provided on one side of the glue tank (3); a glue bottle (12) or a sealing cover can be connected to the opening of the glue injection port (11); the glue bottle (12) or the sealing cover can seal the opening of the glue injection port (11); and a communication channel (13) is provided between the bottom of the glue injection port (11) and the bottom of the glue tank (3).

2. The bill sticker according to claim 1, characterized in that: The base (1) is provided with a handle (14) at one end away from the glue tank (3); the pressure rod (2) is extended to the upper part of the handle (14) at one end away from the pressure cover (5), so that when the user holds the handle (14), the pressure rod (2) can be pressed with the thumb.

3. The bill sticker according to claim 1, characterized in that: The elastic component (6) comprises a C-shaped retaining spring (61), a first retaining groove (62) provided on the pressure rod (2), and a second retaining groove (63) provided on the base (1); the upper and lower arms of the C-shaped retaining spring (61) are respectively snap-connected in the first retaining groove (62) and the second retaining groove (63), and the hinge structure (9) is located between the two arms of the C-shaped retaining spring (61).

4. The bill sticker according to any one of claims 1-2, characterized in that: A wedge-shaped tip (7) is provided on the side of the glue groove (3) away from the base (1); the side of the wedge-shaped tip (7) away from the glue groove (3) is sharp, and the bottom surface of the side of the wedge-shaped tip (7) away from the glue groove (3) is flat.

5. The bill sticker according to claim 4, characterized in that: The pressure rod (2) is provided with a shift fork (21); the top surface of the wedge-shaped tip (7) is provided with a flap (22) linked to the pressure rod (2), the flap (22) is hinged to the wedge-shaped tip (7) on the side away from the glue groove (3), and a pull rod wire (23) is connected between the other side of the flap (22) and the shift fork (21). When the pressure cover (5) is opened, the pressure rod (2) drives the flap (22) to flip upward through the pull rod wire (23); an anti-fall support plate (17) connected to the base (1) is provided under the pull rod wire (23); an anti-fall side plate (18) connected to the base (1) is provided on the outside of the pull rod wire (23), and the anti-fall side plate (18) is used to prevent the pull rod wire from falling off from the fork groove of the shift fork.

6. The bill sticker according to claim 1, characterized in that: A hinge structure (9) is provided at the hinged joint of the pressure rod (2) and the base (1), and the hinge structure (9) includes a tooth groove (91) and a tooth protrusion (94) arranged on both sides of the pressure rod (2) and the base (1); the groove bottom of the tooth groove (91) and the end of the tooth protrusion (94) are coaxial cylindrical contact surfaces, and can mesh with each other to form a friction pair; when the tooth groove (91) and the tooth protrusion (94) are meshed, the pressure cover (5) can open and close relative to the glue groove (3) around the axis of the cylindrical contact surface of the tooth groove (91) and the tooth protrusion (94).

7. The bill sticker according to claim 1, characterized in that: A sealing device is provided at the interface where the notch of the glue groove (3) and the pressure cover (5) are sealed. The sealing device includes a sealing ring, a sealing gasket or a sealing adhesive coating. The sealing device is installed or attached to the notch of the pressure cover (5) or the glue groove (3).

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