Paper feeding channel structure capable of preventing paper jamming

Abstract

A paper feeding channel structure capable of preventing paper jamming is characterized in that a paper feeding channel is arranged on a paper outlet mechanism, the paper outlet mechanism is provided with two side plates which are oppositely arranged and define the paper feeding channel, and a paper feeding unit and a cutting unit which are arranged in the conveying direction are arranged on the side plates. The paper feeding unit comprises two conveying rollers which are rotationally connected to the two side plates correspondingly, receding openings for the conveying rollers to leak out and partially extend into the paper feeding channel are formed in the two side plates correspondingly, and receding faces are arranged on the lower sides of the receding openings correspondingly. According to the technical scheme, the receding face is arranged, so that after tissues are conveyed to the lower end of the conveying roller, a certain gap is formed between the tissues and the inner wall of the paper feeding channel, air can enter the gap, and therefore the situation that negative pressure suction force is generated after the tissues are tightly attached to the inner wall of the paper feeding channel, and consequently the tissues are conveyed unsmoothly is avoided; and the paper jamming condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of paper dispensing machines, in particular to a paper feeding channel structure for preventing paper jams. Background Art

[0002] Shared paper dispensers are a common device in some public places. By scanning a QR code on the device, tissues are obtained. In 2024, the applicant applied for an invention patent for a "pocket tissue dispenser" to provide a new paper dispenser that facilitates the easy access to tissues. However, after the product was launched and subjected to a period of use and maintenance, certain issues were discovered. Specifically, in the process of conveying paper towels, in order to ensure the conveying accuracy and reliability of paper towels, the width of the conveying channel is usually adapted to the thickness of the paper towels to ensure that the paper towels can be stably conveyed within the conveying channel. However, during operation and maintenance, it was found that since the paper towels and the inner wall of the conveying channel are in close contact with each other, electrostatic adsorption or negative pressure adsorption is generated between the surface of the paper towels and the conveying channel, thereby affecting the conveying between them. At the same time, during the roller pressure conveying of the paper feed roller, the paper towels are prone to cause paper jams in the paper feed channel at the lower end of the paper feed roller, affecting the paper feeding efficiency. However, if the width of the conveying channel is increased, the paper towels cannot remain stable in the paper feed channel, which will seriously affect the stability of the paper feeding accuracy.

[0003] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a paper feeding channel structure that prevents paper jams. In order to solve the above technical problems, this utility model adopts the following technical solutions:

[0005] A paper feeding channel structure for preventing paper jams, wherein the paper feeding channel is arranged on a paper discharge mechanism, and the paper discharge mechanism is provided with two side plates arranged opposite to each other and defining the paper feeding channel, and a paper feeding unit and a cutting unit arranged along the conveying direction are provided on the side plates, and the paper feeding unit includes two conveying rollers rotatably connected to the two side plates, and both side plates are formed with avoidance openings for the conveying rollers to escape and partially penetrate into the paper feeding channel, and the lower side of the avoidance opening is provided with an avoidance surface, and the avoidance surface is inclined from the lower edge of the avoidance opening toward obliquely downward.

[0006] Furthermore, the upper edge of the avoidance surface coincides with the lower edge of the avoidance opening, and the distance between the upper edge of the avoidance surface and the axis of the conveying roller is smaller than the distance between the upper edge of the avoidance opening and the axis of the conveying roller.

[0007] Furthermore, a first notch is formed on at least one of the side panels. The first notch is arranged on the avoidance surface and extends along the conveying direction of the paper feeding channel.

[0008] Furthermore, the upper edge of the first notch is located within the range of the avoidance surface, and the lower edge of the first notch extends in the conveying direction toward a direction away from the avoidance surface.

[0009] Furthermore, the inclination direction of the first notch is the same as the inclination direction of the avoidance surface, and the inclination angle of the first notch is smaller than the inclination angle of the avoidance surface.

[0010] Furthermore, the cutting unit includes a cutter slidably connected to the paper discharge mechanism in a direction perpendicular to the paper feeding direction, and a knife outlet for the cutter to pass through is provided on both side panels; a second notch is provided on the lower edge of the knife outlet of at least one of the side panels, the upper end of the second notch coincides with the lower edge of the knife outlet, and the lower end of the second notch extends along the paper feeding direction and passes through the lower side of the side panel.

[0011] Furthermore, the width of the second notch is smaller than or equal to the width of the knife edge.

[0012] The beneficial effects produced by the utility model are as follows:

[0013] The embodiment of the present utility model provides a paper feeding channel structure for preventing paper jams, which is applied to a paper feeding mechanism. Specifically, two side plates facing each other are provided on the paper feeding mechanism to define a paper feeding channel for conveying paper towels. A paper feeding unit and a cutting unit are also sequentially provided on the paper feeding channel of the paper discharge mechanism along the conveying direction. Specifically, the paper feeding unit includes a conveying roller respectively rotatably connected to the side plates. The conveying gap between the two conveying rollers is correspondingly connected to the paper feeding channel, so that the paper towels are conveyed in the paper feeding channel by roller pressure. At this time, at the lower side of the avoidance port for leaking part of the surface of the conveying roller and allowing it to penetrate into the conveying channel, An avoidance surface is provided along the side, and the avoidance surface is provided in an inclined direction, so that after the paper towel is conveyed by the two conveying rollers, the lower end of the paper towel is rolled out between the two conveying rollers, and the upper edge of the avoidance surface can avoid the end of the paper towel to avoid contact between the end of the paper towel and the lower edge of the avoidance opening to cause paper jam. At the same time, an avoidance surface is provided later so that after the paper towel is conveyed to the lower end of the conveying roller, there is a certain gap between the paper towel and the inner wall of the paper feeding channel to allow air to enter, thereby avoiding the negative pressure suction generated by the tight adhesion between the paper towel and the inner wall of the paper feeding channel, which causes the paper towel to be conveyed unsmoothly and leads to paper jam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model being loaded onto a paper discharger.

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the utility model after the front baffle is removed.

[0017] Figure 4 It is a structural schematic diagram of a side panel in the utility model.

[0018] Figure 5 It is a structural schematic diagram of another side panel in the utility model.

[0019] In the figure: 100-paper discharge mechanism; 110-side panel; 101-paper feed channel; 200-paper feed unit; 300-cutting unit; 201-conveying roller; 111-avoidance; 112-avoidance surface; 113-first notch; 301-cutter; 114-knife outlet; 115-second notch; 102-main frame; 103-front baffle; 104-rear baffle; 10-paper discharger; 11-housing; 12-installation cavity; 13-placing cavity. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0021] The embodiment of the present invention provides a paper feeding channel 101 structure for preventing paper jams, which is applied to a paper feeding mechanism. Specifically, two side plates 110 facing each other are provided on the paper feeding mechanism to define the paper feeding channel 101 for conveying paper towels. Along the conveying direction, the paper discharge mechanism 100 is further provided with a paper feeding unit 200 and a cutting unit 300 in sequence on the paper feeding channel 101. Specifically, the paper feeding unit 200 includes a conveying roller 201 rotatably connected to the side plates 110. The conveying gap between the two conveying rollers 201 is correspondingly connected to the paper feeding channel 101, so that the paper towels are conveyed within the paper feeding channel 101 by rolling pressure. At this time, in the avoidance mechanism for leaking part of the surface of the conveying roller 201 and allowing it to penetrate into the conveying channel, The lower edge of the opening 111 is provided with an avoidance surface 112, and the avoidance surface 112 is set in an inclined direction, so that after the paper towel is rolled and conveyed by the two conveying rollers 201, the lower end of the paper towel is rolled out between the two conveying rollers 201, and the upper edge of the avoidance surface 112 can avoid the end of the paper towel to avoid the end of the paper towel from contacting the lower edge of the avoidance opening 111 and causing paper jams. At the same time, the avoidance surface 112 is provided so that after the paper towel is conveyed to the lower end of the conveying roller 201, there is a certain gap between the paper towel and the inner wall of the paper feeding channel 101, which can allow air to enter, thereby avoiding the negative pressure suction generated by the tight adhesion between the paper towel and the inner wall of the paper feeding channel 101, which causes the paper towel to be conveyed unsmoothly and causes paper jams.

[0022] Specifically, such as Figure 1-5 As shown, the present embodiment provides a paper jam-proof paper feeding channel 101 structure, wherein the paper feeding channel 101 is arranged on the paper discharging mechanism 100, and the paper discharging mechanism 100 is provided with two side panels 110 which are arranged opposite to each other and define the paper feeding channel 101, and a paper feeding unit 200 and a cutting unit 300 arranged along the conveying direction are provided on the side panels 110, and the paper feeding unit includes two conveying rollers 201 which are rotatably connected to the two side panels 110 respectively, and an avoidance opening 111 is formed on the two side panels 110 for the conveying rollers 201 to leak out and partially penetrate into the paper feeding channel 101, and an avoidance surface 112 is provided on the lower side of the avoidance opening 111, and the avoidance surface 112 is inclined from the lower edge of the avoidance opening 111 toward obliquely downward.

[0023] In this embodiment, the paper discharging mechanism 100 is arranged in the paper discharging machine 10. Figure 1 As shown, the paper dispensing machine 10 has a housing 11, and a paper dispensing mechanism 100 is disposed in a mounting cavity 12 within the housing 11. A placement cavity for holding paper towels connected end to end is disposed next to the mounting cavity 12. During use, the ends of the paper towels are placed in a paper feeding channel 101 of the paper dispensing mechanism 100, and are fed by a paper feeding unit 200 and then cut by a cutting unit 300. Figure 2-3 As shown, the paper discharge mechanism 100 includes a rear baffle 104, the main frame 102 is fixedly mounted on the rear baffle 104, wherein the two side panels 110 are also mounted on the rear baffle 104, and the front baffle 103 is fixedly mounted on the other side of the two side panels 110 relative to the rear baffle 104, and is used to close the paper feeding channel 101, and has two upper and lower openings. It is worth noting that the paper feeding unit 200 and the cutting unit 300 are also arranged on the main frame 102 for installation and fixation. During the paper feeding process, the paper towel is pre-transmitted to between the two conveying rollers 201 along the paper feeding channel 101, and is conveyed under the roller pressure of the two conveying rollers 201. After the end of the paper towel is conveyed to the lower side of the conveying roller 201, due to the provision of the avoidance surface 112, a certain gap can be generated between the paper towel and the inner wall of the paper feeding channel 101. The gap can allow air to flow, thereby reducing the negative pressure caused by the paper towel being tightly attached to the inner wall of the paper feeding channel 101 and adsorbing each other, thereby avoiding the occurrence of paper jams and ensuring smooth paper output.

[0024] In this embodiment, to further improve the smoothness of paper discharge, the upper edge of the avoidance surface 112 coincides with the lower edge of the avoidance opening 111, and the distance between the upper edge of the avoidance surface 112 and the axis of the conveying roller 201 is less than the distance between the upper edge of the avoidance opening 111 and the axis of the conveying roller 201. By arranging the upper edge of the avoidance surface 112 to coincide with the lower edge of the avoidance opening 111, after the paper towel is rolled and conveyed by the conveying roller 201, the lower edge of the avoidance opening 111 can be moved away as the end of the paper towel is gradually conveyed to the lower end of the conveying roller 201, thereby preventing the end of the paper towel from interfering with the lower edge of the avoidance opening 111 and causing paper jams.

[0025] In this embodiment, to further improve paper discharge smoothness and prevent the paper towel from clinging to the avoidance surface 112, a first notch 113 is formed on at least one side panel 110. The first notch 113 is disposed above the avoidance surface 112 and extends along the conveying direction of the paper feed passage 101. The first notch 113 creates a certain gap between the paper towel and the avoidance surface 112, allowing air to pass through and preventing the paper towel from clinging to the avoidance surface 112.

[0026] In this embodiment, the upper edge of the first notch 113 is located within the clearance surface 112, and the lower edge of the first notch 113 extends in the conveying direction away from the clearance surface 112. Furthermore, the inclination of the first notch 113 is the same as that of the clearance surface 112, and the inclination angle of the first notch 113 is smaller than that of the clearance surface 112. This arrangement prevents the paper towel from being attracted to the clearance surface 112 and the inner wall of the paper feed path 101 due to their close contact during paper delivery.

[0027] In this embodiment, the cutting unit 300 includes a cutter 301 slidably connected to the paper discharge mechanism 100 in a direction perpendicular to the paper feed direction. A cutter opening 114 is formed on each of the two side panels 110, through which the cutter 301 passes. A second notch 115 is provided on the lower edge of the cutter opening 114 of at least one of the side panels 110. The upper end of the second notch 115 coincides with the lower edge of the cutter opening 114, and the lower end of the second notch 115 extends in the paper feed direction and through the lower side of the side panel 110. Furthermore, the width of the second notch 115 is less than or equal to the width of the cutter opening 114.

[0028] After the paper towel is cut by the cutter 301, in this embodiment, the cutter 301 extends from the side panel 110 on the side close to the placement bin 13 and moves toward the side panel 110 on the side away from the placement bin 13, thereby cutting the paper towel. At this time, the second notch 115 is provided on the side panel 110 on the side away from the placement bin 13. In the process of the cutter 301 moving to cut the paper towel, the paper towel receives a thrust in the direction away from the placement bin 13, so that it can be tightly attached to the side panel 110 away from the placement bin 13. At this time, the second notch 115 is provided, which can increase the gap between the side panel 110 and the paper towel, thereby preventing the paper towel and the inner wall of the side panel 110, that is, the paper feeding channel 101, from being tightly attached to each other and adsorbing each other, thereby affecting the smoothness of paper feeding.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any technician familiar with the profession can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical content disclosed above. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A paper feed channel structure for preventing paper jams, wherein the paper feed channel is arranged above a paper discharge mechanism, the paper discharge mechanism is provided with two side panels arranged opposite to each other and defining the paper feed channel, and a paper feed unit and a cutting unit arranged along a feeding direction are provided above the side panels, characterized in that: The paper feeding unit includes two conveying rollers that are rotatably connected to the two side plates, and each of the two side plates is formed with an escape opening for the conveying roller to escape and partially penetrate into the paper feeding channel. The lower side of the escape opening is provided with an escape surface, and the escape surface is inclined from the lower edge of the escape opening toward obliquely downward.

2. The anti-paper jam paper feeding channel structure according to claim 1, characterized in that: The upper edge of the avoidance surface coincides with the lower edge of the avoidance opening, and the distance between the upper edge of the avoidance surface and the axis of the conveying roller is smaller than the distance between the upper edge of the avoidance opening and the axis of the conveying roller.

3. The anti-paper jam paper feeding channel structure according to claim 1, characterized in that: A first notch is formed on at least one of the side panels. The first notch is arranged on the avoidance surface and extends along the conveying direction of the paper feeding channel.

4. The anti-paper jam paper feeding channel structure according to claim 3, characterized in that: An upper edge of the first notch is located within the range of the avoidance surface, and a lower edge of the first notch extends in a conveying direction toward a direction away from the avoidance surface.

5. The anti-paper jam paper feeding channel structure according to claim 4, characterized in that: The inclination direction of the first notch is the same as the inclination direction of the avoidance surface, and the inclination angle of the first notch is smaller than the inclination angle of the avoidance surface.

6. The anti-paper jam paper feeding channel structure according to claim 1, characterized in that: The cutting unit includes a cutter slidably connected to the paper discharge mechanism in a direction perpendicular to the paper feeding direction, and a knife outlet for the cutter to pass through is provided on both side panels; a second notch is provided on the lower edge of the knife outlet of at least one of the side panels, the upper end of the second notch coincides with the lower edge of the knife outlet, and the lower end of the second notch extends along the paper feeding direction and passes through the lower side of the side panel.

7. The anti-paper jam paper feeding channel structure according to claim 6, characterized in that: The width of the second notch is smaller than or equal to the width of the knife edge.

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