Printing paper length calculation structure, stylus printer and stylus printer installation system

Abstract

The utility model discloses a printing paper length calculation structure, a stylus printer and a stylus printer installation system. The printing paper length calculation structure comprises an inductor, a left support, a right support, a paper pressing piece, a paper feeding channel and a bottom plate. The paper pressing piece is arranged above the bottom plate; the paper feeding channel is arranged between the paper pressing piece and the bottom plate; the left support is arranged on the left side of the paper feeding channel, and the right support is arranged on the right side of the paper feeding channel. The inductor is arranged on the left support and / or the right support and located above the paper pressing piece. The inductor can be used for inducting the number of holes in the two sides of the printing paper. The paper pressing piece is matched with the bottom plate, so that the paper feeding accuracy can be improved; the sensors are arranged on the left support and / or the right support on the left side and the right side of the paper feeding channel, the number of holes in the two sides of the printing paper is sensed, the length of the printing paper can be judged, and the length calculation structure is simple in structure and few in parts; the stylus printer and the stylus printer installation system have the printing paper length calculation structure, so that the stylus printer and the stylus printer installation system also have the same advantages as the printing paper length calculation structure.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a printing paper length calculation structure, a dot matrix printer and a dot matrix printer installation system. Background Art

[0002] In the highway toll collection system, printing invoice copies is an important part of recording toll information. The invoice copies in some provinces currently use double-sided perforated paper. When the printer prints invoice copies with holes on both sides, a counting mechanism based on a roller and rows of holes is used to calculate the length of the invoice copy. Specifically, a series of protrusions are provided on the roller, and these protrusions cooperate with the rows of holes on both sides of the invoice copy. The count is performed by inserting the protrusions into the rows of holes, thereby calculating the length of the invoice copy.

[0003] However, this length calculation method has the following problems:

[0004] 1. Structural complexity: Since it is necessary to set protrusions on the roller that match the invoice holes, this increases the mechanical structure complexity of the printer, resulting in increased difficulty in printer design and manufacturing.

[0005] 2. Many parts: In order to realize the counting function, the printer needs additional parts, such as rollers, protrusions and holes, which not only increases the cost but also increases the difficulty of maintenance and repair.

[0006] In summary, although the existing invoice length calculation method based on rollers and holes can achieve basic functions, its complex structure and many parts limit its wide application and performance improvement in highway toll collection systems. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model provides a printing paper length calculation structure, a dot matrix printer and a dot matrix printer installation system which have a simple structure and can reduce the number of parts and components.

[0008] The first technical solution adopted by the utility model to solve its technical problem is:

[0009] The printing paper length calculation structure includes a sensor, a left bracket, a right bracket, a paper pressing member, a paper feeding channel, and a bottom plate;

[0010] The paper pressing member is arranged above the bottom plate;

[0011] The paper feeding channel is arranged between the paper pressing member and the bottom plate;

[0012] The left bracket is arranged on the left side of the paper feeding passage, and the right bracket is arranged on the right side of the paper feeding passage;

[0013] The sensor is arranged on the left bracket and / or the right bracket and is located above the paper pressing member. The sensor can be used to sense the number of holes on both sides of the printing paper.

[0014] In the printing paper length calculation structure as described above, the paper pressing member is plate-shaped, the paper pressing member is arranged parallel to the bottom plate, a detection through hole is opened on the paper pressing member, and the sensor is arranged above the detection through hole.

[0015] The printing paper length calculation structure as described above further includes a left adjustment plate, a right adjustment plate and an adjustment key;

[0016] The left adjustment plate is arranged between the left bracket and the paper feeding channel and is arranged perpendicular to the bottom plate;

[0017] The right adjustment plate is arranged between the right bracket and the paper feeding channel and is arranged perpendicular to the bottom plate;

[0018] The adjustment key is arranged through the left adjustment plate and the right adjustment plate, one end of the adjustment key is exposed to the side of the right bracket facing away from the paper feeding channel, and the other end of the adjustment key is threadedly connected to the left adjustment plate.

[0019] The printing paper length calculation structure as described above, wherein the right adjustment plate is fixedly connected to the bottom plate;

[0020] The left adjustment plate further comprises a left parallel adjustment plate arranged parallel to the bottom plate;

[0021] The left parallel adjustment plate is provided with a guide limit sliding groove;

[0022] The bottom plate is provided with a limiting member, and the limiting member is slidably arranged in the guide limiting sliding groove;

[0023] When the adjusting key is rotated, the guide limiting sliding groove is driven to slide relative to the limiting member.

[0024] The second technical solution adopted by the utility model to solve its technical problem is:

[0025] A dot matrix printer, including a frame, a paper inlet and a paper outlet;

[0026] The paper inlet is provided with the printing paper length calculation structure as described above.

[0027] In the dot matrix printer as described above, a paper feeding module is provided in the frame on one side close to the paper inlet;

[0028] The paper feeding module comprises a lower paper feeding roller, an upper paper feeding roller and a paper feeding driving member;

[0029] The lower paper feed roller and the upper paper feed roller are arranged parallel to each other, and the passage between the lower paper feed roller and the upper paper feed roller is the paper feed passage in the machine;

[0030] The paper feeding passage in the machine is connected to the paper feeding passage;

[0031] The fixed end of the paper feeding driving component is arranged on the frame, and the output end of the paper feeding driving component is connected to the lower paper feeding roller or the upper paper feeding roller.

[0032] In the above-mentioned dot matrix printer, the paper feed drive member and the lower paper feed roller are arranged side by side, the output end of the paper feed drive member is fixedly connected to a driving gear, and one end of the lower paper feed roller is fixedly connected to a lower paper feed gear;

[0033] The driving gear is meshed with the lower paper feeding gear for transmission.

[0034] The dot matrix printer as described above, wherein the frame is located at one side of the paper outlet, and is provided with a paper cutting module hinged to the frame;

[0035] The hinge point between the paper cutting module and the frame is arranged below the paper outlet.

[0036] In the dot matrix printer as described above, a printing module is provided between the paper cutting module and the paper feeding module, and the printing module is arranged adjacent to the paper cutting module.

[0037] The third technical solution adopted by the utility model to solve its technical problem is:

[0038] A dot matrix printer installation system comprises a support module and the dot matrix printer as described above, wherein the support module has a height of 1.5-2.0 m and the dot matrix printer is arranged above the support module.

[0039] The beneficial effects of the utility model are:

[0040] The utility model provides a printing paper length calculation structure. Through the cooperation of a paper pressing member and a bottom plate, the paper pressing member can be used as a paper guide device, can help position the paper, ensure that the paper smoothly enters the paper feeding channel along a predetermined path, and improve the accuracy of paper feeding; sensors are arranged on the left bracket and / or the right bracket on the left and right sides of the paper feeding channel, and the number of holes on both sides of the printing paper is sensed by the sensors, so that the length of the printing paper can be determined. Compared with the prior art, the length calculation structure of the utility model is simple in structure and has fewer parts;

[0041] The utility model also provides a dot matrix printer and a dot matrix printer installation system. Since the dot matrix printer and the dot matrix printer installation system have the above-mentioned printing paper length calculation structure, they also have the beneficial effects of the printing paper length calculation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0043] Figure 1 This is one of the structural schematic diagrams of the dot matrix printer in the utility model;

[0044] Figure 2 is along Figure 1 Sectional view of the AA plane;

[0045] Figure 3 This is the third structural schematic diagram of the dot matrix printer in the utility model;

[0046] Figure 4 is along Figure 3 Sectional view of the middle BB plane;

[0047] Figure 5 This is a structural disassembly diagram of the dot matrix printer in the utility model;

[0048] The reference numerals in this embodiment are as follows:

[0049] 1. Sensor; 21. Left bracket; 22. Right bracket; 3. Paper pressing part; 31. Detection hole; 41. Paper feeding channel; 42. Paper feeding channel in the machine; 5. Bottom plate; 531. Limiting part; 61. Left adjustment plate; 62. Right adjustment plate; 63. Adjustment key; 64. Left parallel adjustment plate; 641. Guide limiting slide; 7. Frame; 71. Paper inlet; 72. Paper outlet; 8. Paper feeding module; 81. Lower paper feeding roller; 811. Lower paper feeding gear; 82. Upper paper feeding roller; 83. Paper feeding drive; 831. Drive gear; 9. Paper cutting module; 10. Printing module. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0051] Example 1

[0052] Reference Figure 1 , Figure 2, a printing paper length calculation structure, including a sensor 1, a left bracket 21, a right bracket 22, a paper pressing member 3, a paper feeding channel 41, and a bottom plate 5;

[0053] The paper pressing member 3 is arranged above the bottom plate 5 (the “above” here refers to the relative position relationship between the paper pressing member 3 and the bottom plate 5, and the “above” mentioned in this embodiment all expresses the relative position relationship between the two);

[0054] The paper feeding channel 41 is provided between the paper pressing member 3 and the bottom plate 5;

[0055] The left bracket 21 is disposed on the left side of the paper feeding passage 41, and the right bracket 22 is disposed on the right side of the paper feeding passage 41;

[0056] The sensor 1 is disposed on the left bracket 21 and / or the right bracket 22 and is located above the paper pressing member 3 .

[0057] The utility model provides a printing paper length calculation structure. Through the cooperation of a paper pressing member and a bottom plate, the paper pressing member can be used as a paper guide device, can help position the paper, ensure that the paper smoothly enters the paper feeding channel along a predetermined path, and improve the accuracy of paper feeding; sensors are arranged on the left bracket and / or the right bracket on the left and right sides of the paper feeding channel, and the number of holes on both sides of the printing paper is sensed by the sensors, so that the length of the printing paper can be determined. Compared with the prior art, the length calculation structure of the utility model is simple in structure and has fewer parts;

[0058] Preferably, the sensor is a photoelectric sensor, which can be arranged on the left bracket 21 or the right bracket 22. The advantage of setting only one photoelectric sensor is cost saving. The photoelectric sensor can also be set on the left bracket 21 or the right bracket 22 at the same time. In the prior art, a hole puncher is used to make double rows of holes on both sides of the invoice. If the paper is too thick or the operation is improper, it is easy for the holes punched by the hole puncher to not be completely punctured. At this time, if only one photoelectric sensor is set, the number of holes will be missed or underestimated, resulting in errors in judging the length of the paper. If it is set on the left bracket 21 or the right bracket 22 at the same time, the occurrence of such situations can be reduced and the accuracy of counting can be improved.

[0059] Preferably, the paper pressing member 3 may be a paper pressing roller, and two ends of the paper pressing roller are rotatably disposed on the left bracket 21 and the right bracket 22 respectively.

[0060] Furthermore, the paper pressing member 3 is plate-shaped, and is arranged parallel to the bottom plate 5. A detection through hole 31 is opened on the paper pressing member 3. The sensor 1 is arranged above the detection through hole 31. The sensor 1 can be used to sense the number of holes on both sides of the printing paper.

[0061] The paper pressing member 3 is plate-shaped, which ensures that the printing paper is stable and straight in the paper feeding channel 41 and reduces the occurrence of bending or wrinkling of the paper.

[0062] Furthermore, it also includes a left adjustment plate 61, a right adjustment plate 62 and an adjustment key 63;

[0063] The left adjustment plate 61 is disposed between the left bracket 21 and the paper feeding passage 41 and is disposed perpendicular to the bottom plate 5;

[0064] The right adjustment plate 62 is disposed between the right bracket 22 and the paper feeding channel 41 and is disposed perpendicular to the bottom plate 5;

[0065] The adjustment key 63 is disposed through the left adjustment plate 61 and the right adjustment plate 62 , one end of the adjustment key 63 is exposed to the side of the right bracket 22 facing away from the paper feeding channel 41 , and the other end of the adjustment key 63 is threadedly connected to the left adjustment plate 61 .

[0066] By designing that the adjustment key 63 passes through the left adjustment plate 61 and the right adjustment plate 62, the width of the paper feed path 41 can be flexibly adjusted to accommodate printing papers of different sizes; and one end of the adjustment key 63 is exposed to one side of the right bracket 22, which is convenient for operating to adjust the width of the paper feed path 41; the threaded connection between the adjustment key 63 and the left adjustment plate 61 allows precise fine-tuning to ensure that the size of the paper feed path 41 accurately matches the width of various printing papers.

[0067] Furthermore, the right adjustment plate 62 is fixedly connected to the bottom plate 5;

[0068] The left adjustment plate 61 further includes a left parallel adjustment plate 64 arranged parallel to the bottom plate 5;

[0069] The left parallel adjustment plate 64 is provided with a guide limit sliding groove 641;

[0070] The bottom plate 5 is provided with a limiting member 531, and the limiting member 531 is slidably disposed in the guide limiting sliding groove 641;

[0071] When the adjustment key 63 is rotated, the guide limit slot 641 is driven to slide relative to the limit member 531, which can ensure that the adjustment plate 64 moves accurately along the predetermined direction during the adjustment process, improve the accuracy of the adjustment, and the left adjustment plate 61 and the right adjustment plate 62 will not be offset during the adjustment; the guide limit slot 641 can also prevent the limit member 531 from falling off during the sliding process and destroying the stability of the structure.

[0072] Example 2

[0073] The dot matrix printer comprises a frame 7, a paper inlet 71 and a paper outlet 72;

[0074] The paper inlet 71 is provided with the printing paper length calculation structure as described above.

[0075] Because the dot matrix printer has a structure for calculating the length of printing paper, the number of holes on both sides of the printing paper can be sensed by the sensor, so as to determine the length of the printing paper and infer whether an invoice containing complete information has been sent out from the paper outlet 72. Compared with the prior art, the dot matrix printer of the utility model has a simple structure and fewer parts.

[0076] The paper feeding path can be referred to Figure 4 The CC path in .

[0077] Furthermore, a paper feeding module 8 is provided in the frame 7 on one side close to the paper inlet 71;

[0078] The paper feeding module 8 includes a lower paper feeding roller 81, an upper paper feeding roller 82 and a paper feeding driving member 83;

[0079] The lower paper feed roller 81 and the upper paper feed roller 82 are arranged parallel to each other, and the passage between the lower paper feed roller 81 and the upper paper feed roller 82 is the paper feed passage 42 in the machine;

[0080] The paper feeding passage 42 in the machine is connected with the paper feeding passage 41;

[0081] The fixed end of the paper feeding driving member 83 is arranged on the frame 7 , and the output end of the paper feeding driving member 83 is connected to the lower paper feeding roller 81 or the upper paper feeding roller 82 .

[0082] Compared with the dot matrix printer in the prior art, the invoice to be printed needs to be inserted into the frame 7 for a certain distance before printing can be carried out. During this process, the paper is easily blocked between the frame 7 and the paper feeding module 8. The paper feeding module 8 is arranged adjacent to the paper inlet 71 and compactly. After passing through the paper inlet 71, the paper immediately contacts the lower paper feeding roller 81 and the upper paper feeding roller 82, which can reduce the occurrence of paper jams and improve the paper feeding efficiency.

[0083] Specifically, the paper feed drive member 83 is arranged side by side with the lower paper feed roller 81, the output end of the paper feed drive member 83 is fixedly connected to a driving gear 831, and one end of the lower paper feed roller 81 is fixedly connected to a lower paper feed gear 811;

[0084] The driving gear 831 is meshed with the lower paper feeding gear 811 for transmission.

[0085] Specifically, the meshing transmission includes direct meshing transmission between the driving gear 831 and the lower paper feeding gear 811, and also includes indirect meshing transmission; Figure 5One of the indirect meshing transmission modes is shown, and an intermediate gear 832 is further provided between the driving gear 831 and the lower paper feed gear 811, the intermediate gear 832 meshes with the lower paper feed gear 811, and the intermediate gear 832 meshes with the driving gear 831, the driving gear 831 drives the intermediate gear 832 to rotate, and the intermediate gear 832 drives the lower paper feed gear 811 to rotate, thereby driving the lower paper feed roller 81 to rotate.

[0086] The paper feed drive member 83 and the lower paper feed roller 81 are arranged side by side, which can make the structure of the dot matrix printer more compact and reduce the occupied area.

[0087] Specifically, the frame 7 is located at one side of the paper outlet 72, and is provided with a paper cutting module 9 hinged to the frame 7;

[0088] The hinge point between the paper cutting module 9 and the frame 7 is arranged below the paper outlet 72 .

[0089] If paper is jammed between the paper outlet 72 of the frame 7 and the paper cutting module 9, the paper cutting module 9 can be flipped open along the hinge point to facilitate cleaning of the jammed paper and reduce downtime.

[0090] Among them, the paper cutting module 9 is a prior art, and its detailed structure is not described here.

[0091] More specifically, a printing module 10 is provided between the paper cutting module 9 and the paper feeding module 8, and the printing module 10 is arranged adjacent to the paper cutting module 9. This further improves the compactness of the structure of the dot matrix printer and reduces paper jams between the paper feeding module 8, the printing module 10 and the paper cutting module 9.

[0092] Example 3

[0093] The dot matrix printer installation system includes a support module and the above-mentioned dot matrix printer, wherein the support module has a height of 1.5-2.0m and the dot matrix printer is arranged above the support module (above here means that when in use, the horizontal position of the dot matrix printer is higher than the horizontal position of the support module).

[0094] The dot matrix printer installation system can be applied to the entrance ramps or exit ramps of various highways. The height range of the support module is suitable for the settings of cars with low driving positions and large trucks with high driving positions. The driver only needs to stretch out his hand to take the invoice sent by the dot matrix printer.

[0095] Preferably, the support module height may be 1.5m, 1.7m, 1.9m, or 2.0m.

[0096] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Printing paper length calculation structure, characterized by: It comprises a sensor (1), a left bracket (21), a right bracket (22), a paper pressing member (3), a paper feeding channel (41), and a bottom plate (5); The paper pressing member (3) is arranged above the bottom plate (5); The paper feeding channel (41) is arranged between the paper pressing member (3) and the bottom plate (5); The left bracket (21) is arranged on the left side of the paper feeding passage (41), and the right bracket (22) is arranged on the right side of the paper feeding passage (41); The sensor (1) is arranged on the left bracket (21) and / or the right bracket (22) and is located above the paper pressing member (3). The sensor (1) can be used to sense the number of holes on both sides of the printing paper.

2. The printing paper length calculation structure as claimed in claim 1, characterized in that: The paper pressing member (3) is plate-shaped and is arranged parallel to the bottom plate (5). A detection through hole (31) is provided on the paper pressing member (3), and the sensor (1) is arranged above the detection through hole (31).

3. The printing paper length calculation structure as claimed in claim 1, characterized in that: It also includes a left adjustment plate (61), a right adjustment plate (62) and an adjustment key (63); The left adjustment plate (61) is arranged between the left support (21) and the paper feeding channel (41) and is arranged perpendicular to the bottom plate (5); The right adjustment plate (62) is arranged between the right bracket (22) and the paper feeding channel (41) and is arranged perpendicular to the bottom plate (5); The adjustment key (63) is arranged through the left adjustment plate (61) and the right adjustment plate (62), one end of the adjustment key (63) is exposed to the side of the right bracket (22) facing away from the paper feeding channel (41), and the other end of the adjustment key (63) is threadedly connected to the left adjustment plate (61).

4. The printing paper length calculation structure as claimed in claim 3, characterized in that: The right adjustment plate (62) is fixedly connected to the bottom plate (5); The left adjustment plate (61) further comprises a left parallel adjustment plate (64) arranged parallel to the bottom plate (5); The left parallel adjustment plate (64) is provided with a guide limiting sliding groove (641); The bottom plate (5) is provided with a limiting member (531), and the limiting member (531) is slidably arranged in the guide limiting sliding groove (641); When the adjusting key (63) is rotated, the guide limiting sliding groove (641) is driven to slide relative to the limiting member (531).

5. Dot matrix printer, characterized in that: It comprises a frame (7), a paper inlet (71) and a paper outlet (72); The paper inlet (71) is provided with a printing paper length calculation structure as claimed in any one of claims 1 to 4.

6. The dot matrix printer according to claim 5, characterized in that: A paper feeding module (8) is provided in the frame (7) on one side close to the paper inlet (71); The paper feeding module (8) comprises a lower paper feeding roller (81), an upper paper feeding roller (82) and a paper feeding driving member (83); The lower paper feed roller (81) and the upper paper feed roller (82) are arranged parallel to each other, and the passage between the lower paper feed roller (81) and the upper paper feed roller (82) is the paper feed passage (42) in the machine; The paper feeding passage (42) in the machine is connected to the paper feeding passage (41); The fixed end of the paper feeding drive component (83) is arranged on the frame (7), and the output end of the paper feeding drive component (83) is connected to the lower paper feeding roller (81) or the upper paper feeding roller (82).

7. The dot matrix printer according to claim 5, characterized in that: The paper feed drive component (83) and the lower paper feed roller (81) are arranged side by side, the output end of the paper feed drive component (83) is fixedly connected to a driving gear (831), and one end of the lower paper feed roller (81) is fixedly connected to a lower paper feed gear (811); The driving gear (831) is meshed with the lower paper feeding gear (811) for transmission.

8. The dot matrix printer according to claim 5, characterized in that: The frame (7) is located on one side of the paper outlet (72) and is provided with a paper cutting module (9) hinged to the frame (7); The hinge point between the paper cutting module (9) and the frame (7) is arranged below the paper outlet (72).

9. The dot matrix printer according to claim 8, characterized in that: A printing module (10) is provided between the paper cutting module (9) and the paper feeding module (8), and the printing module (10) is arranged adjacent to the paper cutting module (9).

10. Dot matrix printer installation system, characterized by: It comprises a support module and a dot matrix printer as described in any one of claims 5 to 9, wherein the support module has a height of 1.5 to 2.0 m, and the dot matrix printer is arranged above the support module.

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