Anti-paper jam device for roll paper feeding device

Abstract

An embodiment of the present invention relates to an anti-paper jam device for a paper roll feeding device, the anti-paper jam device is placed in the paper roll feeding device, and includes: an anti-paper jam structure and a paper guiding structure; the paper roll feeding device includes a paper discharge mechanism; the paper discharge mechanism includes a shell and a first paper discharge shaft and a second paper discharge shaft arranged in the shell; the first paper discharge shaft and the second paper discharge shaft are arranged in parallel; the first paper discharge shaft and the second paper discharge shaft are respectively provided with a plurality of first guide wheels, and the setting positions of the first guide wheels on the first paper discharge shaft and the first guide wheels on the second paper discharge shaft correspond one to one; the anti-paper jam structure is stuck on the shell and is respectively arranged on the outsides of the first paper discharge shaft and the second paper discharge shaft, the anti-paper jam structure includes a fixed installation part and a cutting part; the paper guiding structure is arranged below the paper discharge mechanism, and has a first inclined surface and a second inclined surface, the upper ends of the first inclined surface and the second inclined surface are connected to the lower end of the shell, and the lower ends of the first inclined surface and the second inclined surface have a paper discharge port.

Description

Technical Field

[0001] The invention relates to the field of mechanical technology, and in particular to an anti-paper jam device of a roll paper supply device. Background Art

[0002] Roll paper supply devices are often installed in public health places such as office buildings, parks and tourist attractions, as well as home toilets. They are mainly used to provide people with paper towels to meet their daily needs for paper.

[0003] In the paper roll feeding device currently on the market, during the paper drawing process, the paper towel is often rolled into the gap of the paper roll feeding device, thus causing paper jam.

[0004] Currently, there is no good solution in the industry to solve the paper jam problem of the roll paper feeding device. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-paper jam device for a roll paper feeding device, which realizes automatic cutting off of paper jams in the roll paper feeding device through an anti-paper jam structure, fundamentally solves the occurrence of paper jams, and realizes smooth export of paper towels through a paper guiding structure.

[0006] To achieve the above object, the present invention provides an anti-paper jam device for a roll paper feeding device, the anti-paper jam device is placed in the roll paper feeding device, and comprises: an anti-paper jam structure and a paper guide structure;

[0007] The roll paper feeding device comprises a paper discharge mechanism; the paper discharge mechanism comprises a housing and a first paper discharge shaft and a second paper discharge shaft arranged in the housing; the first paper discharge shaft and the second paper discharge shaft are arranged in parallel; the first paper discharge shaft and the second paper discharge shaft are respectively provided with a plurality of first guide wheels, and the first guide wheels on the first paper discharge shaft correspond to the first guide wheels on the second paper discharge shaft in one-to-one arrangement positions;

[0008] The anti-paper jam structure is mounted on the housing and is respectively arranged on the outside of the first paper output shaft and the second paper output shaft. The anti-paper jam structure includes a fixed installation portion and a cutting portion. The cutting portion has a plurality of first grooves, each of which corresponds to a first guide wheel. The first groove has a first saw tooth inside, and a preset distance is provided between the first saw tooth and the edge of the first guide wheel.

[0009] The paper guide structure is arranged below the paper discharge mechanism and has a first slope and a second slope. The upper ends of the first slope and the second slope are connected to the lower end of the shell. The lower ends of the first slope and the second slope have a paper discharge port.

[0010] Preferably, the distance between the axis center of the first paper output shaft and the axis center of the second paper output shaft matches the diameter of the first guide wheel.

[0011] Preferably, the paper discharge mechanism further comprises a first paper feed shaft and a second paper feed shaft arranged in the housing;

[0012] The first paper feed shaft and the second paper feed shaft are respectively provided with a plurality of second guide wheels;

[0013] The anti-paper jam structure is respectively arranged on the outer sides of the first paper output shaft and the first paper input shaft, and on the outer sides of the second paper output shaft and the second paper input shaft;

[0014] The anti-paper jam structure on each side has two cutting parts, which are arranged parallel to each other; one of the cutting parts has the first groove, and the other cutting part has the second groove, and the inner side of the second groove has second saw teeth;

[0015] Each of the second grooves corresponds to accommodating a second guide wheel; a preset distance is provided between the second saw teeth and the edge of the second guide wheel.

[0016] Preferably, the distance between the axis center of the first paper feed shaft and the axis center of the second paper feed shaft matches the diameter of the second guide wheel.

[0017] Further preferably, the first guide wheel and the second guide wheel respectively specifically include: a guide wheel slot and a rubber ring;

[0018] The rubber ring is clamped in the guide wheel clamping groove.

[0019] Preferably, the anti-paper jam device further comprises: an infrared transmitting tube pair and an infrared receiving tube pair; the housing has a transmitting device accommodating slot and a receiving device accommodating slot;

[0020] The transmitting device accommodating groove and the receiving device accommodating groove are correspondingly arranged below the first paper output shaft and the second paper output shaft;

[0021] The infrared transmitting tube pair is placed in the transmitting device accommodating groove; the infrared receiving tube pair is placed in the receiving device accommodating groove.

[0022] Preferably, the anti-paper jam device also includes: an infrared filter; the infrared filter is arranged on one side of the infrared beam emitting direction of the infrared emitting tube.

[0023] Further preferably, the anti-paper jam device further includes a control circuit;

[0024] The control circuit is placed in the roll paper feeding device and is connected to the infrared emitting tube pair and the infrared receiving tube pair.

[0025] Further preferably, the anti-paper jam device also includes a power supply, and the power supply is connected to the infrared transmitting tube pair, the infrared receiving tube pair, the infrared filter and the control circuit.

[0026] Preferably, the fixed installation portion includes a buckle, and the shell is also provided with a buckle insertion hole, and the buckle is inserted into the buckle insertion hole to fix the anti-paper jam structure on the shell of the paper discharge mechanism.

[0027] An embodiment of the present invention provides an anti-paper jam device for a roll paper feeding device. The anti-paper jam device realizes automatic cutting off of paper jams in the roll paper feeding device through an anti-paper jam structure, fundamentally solves the occurrence of paper jams, and realizes smooth export of paper towels through a paper guide structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of an anti-paper jam device of a roll paper feeding device provided by an embodiment of the present invention;

[0029] Figure 2 A cross-sectional view of an anti-paper jam device of a roll paper feeding device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0031] An embodiment of the present invention provides an anti-paper jam device for a roll paper supply device. The anti-paper jam device is mainly used in the roll paper supply device.

[0032] Figure 1 A schematic diagram of an anti-paper jam device of a roll paper feeding device provided by an embodiment of the present invention, Figure 2 This is a cross-sectional view of an anti-jam device for a roll paper supply device. Figure 1 and Figure 2 , an embodiment of the present invention is described. As shown in the figure, the anti-paper jam device of the present invention is placed in the roll paper feeding device, including: an anti-paper jam structure 1 and a paper guide structure (not shown in the figure);

[0033] The roll paper supply device includes a paper discharge mechanism 101; the paper discharge mechanism 101 includes a shell 102 and a first paper discharge shaft 103 and a second paper discharge shaft (not shown in the figure) arranged in the shell 102; the first paper discharge shaft 103 and the second paper discharge shaft are arranged in parallel; the first paper discharge shaft 103 has six evenly distributed first guide wheels 104, and the second paper discharge shaft has six evenly distributed first guide wheels, and the first guide wheels 104 on the first paper discharge shaft 103 correspond to the first guide wheels on the second paper discharge shaft in one-to-one arrangement position; the distance between the axis center of the first paper discharge shaft 103 and the axis center of the second paper discharge shaft matches the diameter of the first guide wheel 104, so that the first guide wheel 104 on the first paper discharge shaft 103 and the first guide wheel on the second paper discharge shaft are tightly attached together, the first paper discharge shaft 103 and the second paper discharge shaft rotate, and at the same time, the first guide wheel 104 on the first paper discharge shaft 103 and the first guide wheel on the second paper discharge shaft rotate together with the paper towel clamped, and the paper towel is discharged.

[0034] The paper discharge mechanism 101 further includes a first paper feed shaft 107 and a second paper feed shaft (not shown in the figure) disposed in the housing 102; the first paper feed shaft 107 and the second paper feed shaft are respectively provided with four second guide wheels 120;

[0035] The distance between the axis of the first paper feed shaft 107 and the axis of the second paper feed shaft matches the diameter of the second guide wheel 120, so that the second guide wheel 120 on the first paper feed shaft 107 and the second guide wheel on the second paper feed shaft are tightly together, and the first paper feed shaft 107 and the second paper feed shaft rotate. At the same time, the second guide wheel 120 on the first paper feed shaft 107 and the second guide wheel on the second paper feed shaft rotate together with the paper towel, and the paper towel is transported to the first paper output shaft 103 and the second paper output shaft below the first paper feed shaft 107 and the second paper feed shaft.

[0036] The anti-paper jam structure 1 is composed of two symmetrically arranged on the outer sides of the first paper output shaft 103 and the first paper input shaft 107, and on the outer sides of the second paper output shaft and the second paper input shaft;

[0037] The anti-paper jam structure 1 includes a fixed installation portion 108; the fixed installation portion 108 includes a buckle 109;

[0038] The housing 102 of the paper discharge mechanism 101 also has a buckle insertion hole (not shown in the figure), and the buckle 109 is inserted into the buckle insertion hole to fix the anti-paper jam structure 1 on the housing 102 of the paper discharge mechanism 101 .

[0039] The anti-paper jam structure 1 on each side has two cutting parts, which are arranged parallel to each other; one of the cutting parts has a first groove 11, and the inner side of the first groove 11 has a first sawtooth 12;

[0040] The other cutting portion has a second groove 13, and the inner side of the second groove 13 has a second sawtooth 14;

[0041] Each first groove 11 corresponds to accommodating a first guide wheel; each second groove 13 corresponds to accommodating a second guide wheel 120; there is a preset distance between the first serration 12 and the edge of the first guide wheel, and the preset distance is not less than the thickness of a paper towel, and there is also a preset distance between the second serration 14 and the edge of the second guide wheel 120, and the preset distance is also not less than the thickness of a paper towel.

[0042] In a specific structural implementation, the first guide wheel 104 on the first paper output shaft 103 and the first guide wheel on the second paper output shaft specifically include: a guide wheel slot and a rubber ring; the rubber ring is clamped in the guide wheel slot.

[0043] The rubber ring has good elastic deformation, and the paper towel is sandwiched between six pairs of rubber rings for transmission, so the paper towel will not be worn during the transmission process.

[0044] The paper guide structure is arranged below the paper discharge mechanism 101 and has a first slope and a second slope. The upper ends of the first slope and the second slope are connected to the lower end of the housing 102 , and the lower ends of the first slope and the second slope have a paper discharge port.

[0045] The first inclined surface and the second inclined surface are both inclined outward from top to bottom to form a trumpet-shaped paper outlet, and the inner surface is smooth. When the user pulls the paper, he applies force along the smooth inclined surface, and the paper towel is smoothly discharged. In a preferred embodiment, the anti-paper jam device can also include a device for detecting the paper jam state, which can specifically include: an infrared transmitting tube pair (not shown in the figure) and an infrared receiving tube pair (not shown in the figure). Correspondingly, the housing 102 has a transmitting device accommodating slot (not shown in the figure) and a receiving device accommodating slot (not shown in the figure);

[0046] The transmitting device accommodating groove and the receiving device accommodating groove are correspondingly arranged below the first paper output shaft 103 and the second paper output shaft;

[0047] The infrared transmitting tube pair is placed in the transmitting device receiving groove; the infrared receiving tube pair is placed in the receiving device receiving groove.

[0048] Preferably, the anti-paper jam device further comprises: a first infrared filter 105; the first infrared filter 105 is arranged on one side of the infrared beam emitting direction of the infrared emitting tube.

[0049] Furthermore, the paper feeding status of the first paper output shaft 103 and the second paper output shaft can also be detected, that is, a second infrared filter 106 and a corresponding infrared transmitting tube pair (not shown in the figure) and an infrared receiving tube pair (not shown in the figure) can also be set, and they are correspondingly arranged above the first paper output shaft 103 and the second paper output shaft.

[0050] Further preferably, the anti-paper jam device further includes a control circuit (not shown in the figure);

[0051] The control circuit is arranged in the roll paper supply device and is connected with the infrared transmitting tube pair and the infrared receiving tube pair.

[0052] Further preferably, the anti-paper jam device also includes a power supply (not shown in the figure), which is connected to the infrared transmitting tube pair, the infrared receiving tube pair, the first infrared filter 105, the second infrared filter 106 and the control circuit.

[0053] During use of the anti-paper jam device of this embodiment, when the paper towel of the roll paper supply device is dragged by the user in an unconventional manner, causing the paper towel to be stuck in the first groove 11, the first saw teeth 12 in the first groove 11 will cut the paper, thereby preventing the paper from being rolled into the anti-paper jam structure 1, thereby preventing the occurrence of paper jams. In addition, during use, when the paper towel slides down into the paper guide structure 2, the smooth inner surface of the paper guide structure 2 allows the paper towel to be smoothly guided out of the paper outlet 23.

[0054] In this embodiment, in the standby state, there is no paper towel under the paper output shaft; in the paper output state, the control circuit controls the infrared emitting tube not to emit infrared light. After the paper output is completed, the paper towel is cut by the cutter arranged below the first paper feed shaft 107 and the second paper feed shaft and above the first paper output shaft 104 and the second paper output shaft in normal use. Therefore, under normal circumstances, when the paper output is completed, there is no paper towel under the paper output shaft. When it returns to standby, the control circuit controls the infrared light emitted by the infrared emitting tube to be emitted after passing through the first infrared filter 105; in the absence of paper towel blocking, the infrared receiving tube can receive the infrared light, and at this time, the first electrical signal is output to the control circuit to identify that the device is working normally. If a paper jam occurs, there will be a paper towel blocking, and the infrared receiving tube will not receive the infrared light. At this time, the second electrical signal is output to the control circuit, and the control circuit performs signal processing to identify that the device is jammed. The control circuit controls the first paper output shaft, the second paper output shaft, the first paper input shaft and the second paper input shaft to stop rotating, and sends an alarm signal. The anti-paper jam device can not only shred jammed paper, but also identify jammed paper and sound an alarm in the event of a jam, providing double insurance for the normal operation of the roll paper supply device.

[0055] The anti-paper jam device of the roll paper supply device provided in this embodiment can realize automatic cutting off of paper jams in the roll paper supply device through the anti-paper jam structure, fundamentally solving the problem of paper jams, and can realize smooth extraction of paper towels through the paper guide structure. The anti-paper jam device can be used in the roll paper supply device.

[0056] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper jam prevention device for a roll paper feeding device, characterized in that: The anti-paper jam device is placed in the roll paper supply device, and includes: an anti-paper jam structure and a paper guide structure; The roll paper feeding device comprises a paper discharge mechanism; the paper discharge mechanism comprises a housing and a first paper discharge shaft and a second paper discharge shaft arranged in the housing; the first paper discharge shaft and the second paper discharge shaft are arranged in parallel; the first paper discharge shaft and the second paper discharge shaft are respectively provided with a plurality of first guide wheels, and the first guide wheels on the first paper discharge shaft correspond to the first guide wheels on the second paper discharge shaft in one-to-one arrangement positions; The anti-paper jam structure is mounted on the housing and symmetrically arranged on the outer sides of the first paper output shaft and the second paper output shaft, respectively. The anti-paper jam structure includes a fixed installation portion and a cutting portion. The cutting portion has a plurality of first grooves, each of which corresponds to a first guide wheel. The first groove has a first saw tooth inside, and a preset distance is provided between the first saw tooth and the edge of the first guide wheel. The preset distance is not less than the thickness of a piece of paper towel. The paper guide structure is arranged below the paper discharge mechanism, and has a first inclined surface and a second inclined surface, the upper ends of the first inclined surface and the second inclined surface are connected to the lower end of the shell, the lower ends of the first inclined surface and the second inclined surface form a trumpet-shaped paper discharge port, and the inner surface of the inclined surface is a smooth surface.

2. The anti-paper jam device according to claim 1, characterized in that: The distance between the axis center of the first paper output shaft and the axis center of the second paper output shaft matches the diameter of the first guide wheel.

3. The anti-paper jam device according to claim 1, characterized in that: The paper discharge mechanism further includes a first paper feed shaft and a second paper feed shaft disposed in the housing; The first paper feed shaft and the second paper feed shaft are respectively provided with a plurality of second guide wheels; The anti-paper jam structure is respectively arranged on the outer sides of the first paper output shaft and the first paper input shaft, and on the outer sides of the second paper output shaft and the second paper input shaft; The anti-paper jam structure on each side has two cutting parts, which are arranged parallel to each other; one of the cutting parts has the first groove, and the other cutting part has the second groove, and the inner side of the second groove has second saw teeth; Each of the second grooves corresponds to accommodating a second guide wheel; a preset distance is provided between the second saw teeth and the edge of the second guide wheel.

4. The anti-paper jam device according to claim 3, characterized in that: The distance between the axis center of the first paper feed shaft and the axis center of the second paper feed shaft matches the diameter of the second guide wheel.

5. The anti-paper jam device of the roll paper feeding device according to claim 1 or 3, characterized in that: The first guide wheel and the second guide wheel specifically include: a guide wheel slot and a rubber ring; The rubber ring is clamped in the guide wheel clamping groove.

6. The anti-paper jam device according to claim 1, characterized in that: The anti-paper jam device further comprises: an infrared transmitting tube pair and an infrared receiving tube pair; the housing has a transmitting device accommodating slot and a receiving device accommodating slot; The transmitting device accommodating groove and the receiving device accommodating groove are correspondingly arranged below the first paper output shaft and the second paper output shaft; The infrared transmitting tube pair is placed in the transmitting device accommodating groove; the infrared receiving tube pair is placed in the receiving device accommodating groove.

7. The anti-paper jam device according to claim 1, characterized in that: The anti-paper jam device also includes: an infrared filter; the infrared filter is arranged on one side of the infrared beam emission direction of the infrared emitting tube.

8. The anti-paper jam device according to claim 6, characterized in that: The anti-paper jam device also includes a control circuit; The control circuit is placed in the roll paper feeding device and is connected to the infrared emitting tube pair and the infrared receiving tube pair.

9. The anti-paper jam device according to claim 8, characterized in that: The anti-paper jam device also includes a power supply, which is connected to the infrared emitting tube pair, the infrared receiving tube pair, the infrared filter and the control circuit.

10. The anti-paper jam device according to claim 1, characterized in that: The fixed installation part includes a buckle, and the shell is also provided with a buckle insertion hole. The buckle is inserted into the buckle insertion hole to fix the anti-paper jam structure on the shell of the paper discharge mechanism.

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