Automatic conveying structure of chain type paper bill printer

By designing an automatic conveying structure, the power wheel increases friction and prevents the bill from swaying, and the limit and angle adjustment is achieved through the limit baffle and fastening block, the deviation and angle of the swaying and angle in the printing process of chain paper bills are solved. Problem, ensure neat and flexible printing.

CN119189519AInactive Publication Date: 2024-12-27SHENZHEN HONGJIALI INFORMATION TECH CO LTD
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Patent Information

Application Number
CN202411604771.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2024-12-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Chain paper bills are prone to slanting during printing, resulting in irregular printing and unadjustable inclination angle of the placing plate, which is inconvenient to printing for different types of bill papers.

Method used

An automatic conveying structure is designed, including a fixed frame, limit cover plate, placement plate, power wheel and drive motor with inverted U-shaped structure, to increase friction force through power wheels to prevent slanting, and to pass limit baffle and tighten The block realizes the limit of the bill and the angle adjustment of the placing plate.

Benefits of technology

Effectively prevent the left and right swings of the bills during the transportation process, ensure the printing is neat, and allow the inclination angle of the placement plate to be adjusted as needed to adapt to the printing of different types of bill papers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an automatic conveying structure of a chain type paper bill printer, and relates to the technical field of printers, the automatic conveying structure comprises a printer main body, a fixed frame of an inverted U-shaped structure is fixedly installed above the inlet end of the printer main body, and a device box is installed on the surface of the right end of the fixed frame; the left and right ends of the inlet end of the printer body are respectively provided with a connecting block. According to the device, the pull rod is pulled outwards, at the moment, the limiting cover plate is separated from the fixed gear, the limiting cover plate loses the limiting effect on the fixed gear, a worker can adjust the inclination angle of the containing plate according to needs, after adjustment is completed, the limiting cover plate can be connected to the exterior of the fixed gear in a sleeving mode again only by loosening the pull rod, and the fixing gear can be fixed. The problems that printed bills are irregular due to the fact that chain-type paper is prone to deflection during continuous advancing, and an existing containing plate used for containing bill paper is fixed to a printer body, and the inclination angle of the containing plate cannot be adjusted are solved.
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Description

Technical Field

[0001] The invention relates to the technical field of printers, and in particular to an automatic conveying structure of a chain paper ticket printer. Background Art

[0002] Printers are a very common office printing device. Chain printers are widely used in printing receipts because of their fast printing speed, strong stability, good durability and strong adaptability. However, the current chain printers still have the following two shortcomings:

[0003] First, when printing the bill, the chain paper tends to deflect as it continues to move forward, which results in the printed bill being irregular and the handwriting not being in the designated position;

[0004] Secondly, the placement plate currently used to place the receipt paper is fixed on the printer body, and the inclination angle of the placement plate cannot be adjusted, which makes it inconvenient when printing different types of receipt paper. Summary of the invention

[0005] In view of this, the present invention provides an automatic conveying structure of a chain paper receipt printer to solve the problem that when printing receipts, the chain paper is prone to swinging when it continues to move forward, which causes the printed receipts to be irregular, and the problem that the placement plate currently used to place the receipt paper is fixed on the printer body and the inclination angle of the placement plate cannot be adjusted.

[0006] The present invention provides an automatic conveying structure of a chain paper ticket printer, which specifically includes: a printer body;

[0007] A fixed frame with an inverted U-shaped structure is fixedly installed above the inlet end of the printer body, a device box is installed on the right end surface of the fixed frame, and a connecting block is installed at the left and right ends of the inlet end of the printer body respectively, and a through hole is opened inside the connecting block for penetration;

[0008] A fixing box, wherein two sets of the fixing boxes are symmetrically arranged and fixedly mounted on the outer end surface of the connecting block;

[0009] A limit cover plate, the limit cover plate is located inside the fixed box, a card slot is provided on the inner surface of the limit cover plate, and a pull rod is fixedly installed at the middle position of the outer end surface of the limit cover plate;

[0010] A placement plate, wherein the upper end surface of the placement plate is provided with two rectangular cavities, a connecting strip is fixedly mounted on the front end surface of the placement plate, and the front end surface of the connecting strip is an arc-shaped structure;

[0011] A fixed shaft, wherein two groups of fixed shafts are symmetrically installed, the fixed shafts are fixedly installed at the left and right ends of the connecting strip, the fixed shafts are clamped in the through holes inside the connecting block, and a fixed gear is installed outside the fixed shaft, and the fixed gear is located inside the fixed box;

[0012] Bottom frame, the bottom frame is provided with two groups, and the bottom frame is fixedly installed just below the cavity on the surface of the placement plate;

[0013] A lifting plate, the lifting plate is located inside the placement plate, and two limit rods are fixedly installed on the lower end surface of the lifting plate, and the limit rods are slidably clamped on the surface of the bottom frame;

[0014] The limit baffles are symmetrically provided in two groups, the front end of the limit baffles is in an inclined structure, and a base plate is fixedly installed below the outer end surface of the limit baffles;

[0015] A connecting shaft, wherein the left end of the connecting shaft is rotatably connected to the left end side plate of the fixed frame, and the right end of the connecting shaft passes through the right end side plate of the fixed frame and is fixedly connected to the passive gear;

[0016] A driving motor is fixedly mounted on the outer end surface of the device box.

[0017] Furthermore, a driving gear is fixedly mounted on the end of the transmission shaft of the driving motor, the driving gear is located inside the device box, and the driving gear is meshed with the driven gear.

[0018] Furthermore, two power wheels are installed on the surface of the connecting shaft, and grooves are evenly formed on the outer end surfaces of the power wheels.

[0019] Furthermore, first slide grooves are evenly formed on the inner end surfaces of the left and right side plates of the fixing box, and a limit block is respectively installed on the left and right ends of the limit cover plate, and the limit block is slidably mounted inside the first slide groove.

[0020] Furthermore, the fixed gear at the outer end of the fixed shaft is clamped in the groove on the surface of the limiting cover plate, and the outside of the pull rod at the outer end of the limiting cover plate is sleeved with a first spring, the inner end of the first spring is fixedly connected to the limiting cover plate, and the outer end of the first spring is fixedly connected to the outer end side plate of the fixed box.

[0021] Furthermore, a second spring is sleeved on the outside of the limiting rod, the upper end of the second spring is fixedly connected to the lifting plate, and the lower end of the second spring is fixedly connected to the bottom frame.

[0022] Furthermore, a second slide groove is provided on the upper end surface of the placement plate, a fastening block is slidably mounted inside the second slide groove, and a fastening screw is fixedly mounted on the upper end surface of the fastening block.

[0023] Furthermore, a connection hole is opened on the surface of the base plate, a fastening screw at the upper end of the fastening block is clamped in the connection hole, and a nut is connected to the surface of the fastening screw.

[0024] The present invention provides an automatic conveying structure of a chain paper receipt printer, which has the following beneficial effects:

[0025] In the present invention, when the driving gear is meshed with the driven gear, and the tooth diameter of the driving gear is smaller than that of the driven gear, the rotation speed of the driven gear can be slowed down. At the same time, the connecting shaft is fixedly connected to the driven gear, so that when the driven gear rotates, the two power wheels on the surface of the connecting shaft will also rotate together. The power wheel fits with the upper end surface of the bill, so that when the power wheel rotates, the bill will move forward, and the surface of the power wheel is evenly provided with grooves, so that when the power wheel drives the bill to be transported forward, the friction between the power wheel and the bill can be increased, which is convenient for transporting the bill.

[0026] In addition, by sliding the fastening block in the second slide slot, workers can move the left and right positions of the two limit baffles according to the length of the bill, so that the inner end faces of the two limit baffles are respectively fitted with the two ends of the bill, so as to limit the bill and prevent the bill from swinging left and right during transportation, thereby ensuring that the printed bill is neat. At the same time, the fastening screw at the upper end of the fastening block is clamped in the connecting hole on the surface of the substrate. After the worker determines the position of the limit baffle, he can tighten the nut on the surface of the fastening screw to fix the limit baffle.

[0027] In addition, when the pull rod is pulled outward, the limit cover plate will be out of contact with the fixed gear, and the limit cover plate will lose its limiting effect on the fixed gear. The worker can then adjust the inclination angle of the placement plate as needed. After the adjustment is completed, it is only necessary to loosen the pull rod, and the limit cover plate will be re-sleeved on the outside of the fixed gear to fix the placement plate.

[0028] In addition, by installing a bottom frame at the lower end of the cavity on the surface of the placement plate and clamping a lifting plate inside the cavity, an upward thrust can be applied to the bill under the action of the second spring force. After the bill paper is printed, the bill paper below will move upward, which can ensure that the power wheel can always fit tightly with the topmost bill, thereby realizing automatic transportation of the bill. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0030] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0031] In the attached picture:

[0032] Figure 1 It is a schematic diagram of the overall device structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the connection structure between the fixing frame and the device box of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the placement plate and the limit baffle of the present invention;

[0035] Figure 4 It is a schematic diagram of the connection structure between the placement plate and the bottom frame of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the printer body of the present invention;

[0037] Figure 6 It is a schematic diagram of the internal structure of the fixing box of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the jacking plate and the compression spring of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the fastening block and the base plate of the present invention;

[0040] Fig. 9 It is a schematic diagram of the placement plate and the bottom frame structure of the present invention.

[0041] List of reference numerals:

[0042] 1. Printer body; 101. Fixed frame; 1011. Device box; 102. Connecting block; 2. Fixed box; 201. First slide slot; 3. Limiting cover plate; 301. Limiting block; 302. Card slot; 303. Pull rod; 4. First spring; 5. Placement plate; 501. Second slide slot; 502. Cavity; 503. Connecting strip; 6. Fixed shaft; 601. Fixed gear; 7. Bottom frame; 8. Lifting plate; 801. Limiting rod; 8011. Second spring; 9. Limiting baffle; 901. Base plate; 9011. Connecting hole; 10. Fastening block; 1001. Fastening screw; 11. Connecting shaft; 1101. Power wheel; 12. Passive gear; 13. Driving motor; 1301. Active gear. DETAILED DESCRIPTION

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of specific embodiments of the present invention.

[0044] Example 1: Please refer to Figures 1 to 9 As shown:

[0045] The present invention provides an automatic conveying structure of a chain paper ticket printer, comprising a printer body 1;

[0046] A fixed frame 101 of an inverted U-shaped structure is fixedly installed above the inlet end of the printer body 1, and a device box 1011 is installed on the right end surface of the fixed frame 101. A connecting block 102 is installed at the left and right ends of the inlet end of the printer body 1, and a through hole is opened inside the connecting block 102 for penetrating installation;

[0047] The fixing box 2 is symmetrically provided with two groups, and the fixing box 2 is fixedly mounted on the outer end surface of the connecting block 102;

[0048] The limiting cover plate 3 is located inside the fixing box 2, a slot 302 is provided on the inner surface of the limiting cover plate 3, and a pull rod 303 is fixedly installed at the middle position of the outer end surface of the limiting cover plate 3;

[0049] A placing plate 5, wherein two rectangular cavities 502 are provided on the upper end surface of the placing plate 5, and a connecting strip 503 is fixedly mounted on the front end surface of the placing plate 5, and the front end surface of the connecting strip 503 is an arc-shaped structure;

[0050] The fixed shaft 6 is symmetrically installed in two groups. The fixed shaft 6 is fixedly installed at the left and right ends of the connecting strip 503. The fixed shaft 6 is clamped in the through hole inside the connecting block 102. The fixed gear 601 is installed outside the fixed shaft 6. The fixed gear 601 is located inside the fixed box 2.

[0051] Bottom frame 7, two groups of bottom frames 7 are provided, and bottom frames 7 are fixedly installed just below the cavity 502 on the surface of the placement plate 5;

[0052] A lifting plate 8, the lifting plate 8 is located inside the placing plate 5, and two limit rods 801 are fixedly installed on the lower end surface of the lifting plate 8, and the limit rods 801 are slidably mounted on the surface of the bottom frame 7;

[0053] The limit baffle 9 is symmetrically provided with two groups, the front end portion of the limit baffle 9 is in an inclined structure, and a base plate 901 is fixedly installed below the outer end surface of the limit baffle 9;

[0054] A connecting shaft 11, the left end of the connecting shaft 11 is rotatably connected to the left side plate of the fixed frame 101, and the right end of the connecting shaft 11 passes through the right side plate of the fixed frame 101 and is fixedly connected to the passive gear 12;

[0055] The driving motor 13 is fixedly mounted on the outer end surface of the device box 1011 .

[0056] The inner end surfaces of the left and right side plates of the fixing box 2 are evenly provided with first slide grooves 201 , and the left and right ends of the limiting cover plate 3 are respectively provided with a limiting block 301 , which is slidably mounted inside the first slide grooves 201 .

[0057] By adopting the above scheme, the technical effect brought about is: through the setting of the limit block 301 slidingly clamped in the first slide groove 201, when the pull rod 303 drives the limit cover plate 3 to move forward and backward, the limit block 301 can play a limiting role on the limit cover plate 3, avoiding the limit cover plate 3 from swinging left and right when moving forward and backward, ensuring that the limit cover plate 3 can move in a straight line and ensuring that the limit cover plate 3 can be easily connected to the outside of the fixed gear 601.

[0058] Among them, the fixed gear 601 at the outer end of the fixed shaft 6 is clamped in the clamping groove 302 on the surface of the limiting cover plate 3, and the pull rod 303 at the outer end of the limiting cover plate 3 is externally sleeved with the first spring 4, and the inner end of the first spring 4 is fixedly connected to the limiting cover plate 3, and the outer end of the first spring 4 is fixedly connected to the outer end side plate of the fixing box 2. During use, when the worker needs to adjust the inclination angle of the placement plate 5, the pull rod 303 can be pulled outward. At this time, the limiting cover plate 3 is disengaged from the fixed gear 601, and the limiting cover plate 3 loses its limiting effect on the fixed gear 601. The worker can adjust the inclination angle of the placement plate 5 as needed. After the adjustment is completed, it is only necessary to loosen the pull rod 303, and the limiting cover plate 3 will be re-sleeved on the outside of the fixed gear 601, thereby achieving the fixation of the placement plate 5.

[0059] The outer part of the limiting rod 801 is sleeved with a second spring 8011 , the upper end of the second spring 8011 is fixedly connected to the lifting plate 8 , and the lower end of the second spring 8011 is fixedly connected to the bottom frame 7 .

[0060] By adopting the above scheme, the technical effect brought about is: when the worker places the bill on the surface of the placement plate 5, as the bill is printed, the height of the bill will also decrease. A bottom frame 7 is installed at the lower end of the cavity 502 on the surface of the placement plate 5, and a lifting plate 8 is clamped inside the cavity 502. Under the action of the elastic force of the second spring 8011, an upward thrust can be applied to the bill. After the bill paper is printed, the bill paper below will move upward, which can ensure that the power wheel 1101 can always fit tightly with the topmost bill, thereby realizing automatic transportation of the bill.

[0061] Embodiment 2: The present invention provides an automatic conveying structure of a chain paper receipt printer. Based on the embodiment 1, Figure 1-Figure 9 As shown, it also includes: a driving gear 1301 is fixedly installed at the end of the transmission shaft of the driving motor 13, the driving gear 1301 is located inside the device box 1011, the driving gear 1301 is meshed with the passive gear 12, and two power wheels 1101 are installed on the surface of the connecting shaft 11, and the outer end surfaces of the power wheels 1101 are evenly provided with grooves.

[0062] By adopting the above scheme, the technical effect brought about is: when it is necessary to print the bill, the drive motor 13 can be started, and the drive motor 13 will drive the active gear 1301 to rotate, and the active gear 1301 is meshed with the passive gear 12, and the tooth diameter of the active gear 1301 is smaller than the tooth diameter of the passive gear 12, which can slow down the rotation speed of the passive gear 12, and at the same time, the connecting shaft 11 is fixedly connected to the passive gear 12, so that when the passive gear 12 rotates, the two power wheels 1101 on the surface of the connecting shaft 11 will also rotate together, and the power wheel 1101 is in contact with the upper end surface of the bill, so that when the power wheel 1101 rotates, the bill will move forward, and the surface of the power wheel 1101 is evenly provided with grooves, so that when the power wheel 1101 drives the bill to be transported forward, the friction between the power wheel 1101 and the bill can be increased, which is convenient for transporting the bill.

[0063] Embodiment 3: The present invention provides an automatic conveying structure of a chain paper receipt printer. Based on the embodiment 1, Figure 1-Figure 9 As shown, it also includes: a second slide groove 501 is opened on the upper end surface of the placement plate 5, and a fastening block 10 is slidably mounted inside the second slide groove 501, and a fastening screw 1001 is fixedly mounted on the upper end surface of the fastening block 10; a connecting hole 9011 is opened on the surface of the base plate 901, and the fastening screw 1001 at the upper end of the fastening block 10 is clamped in the connecting hole 9011, and a nut is connected to the surface of the fastening screw 1001.

[0064] By adopting the above scheme, the technical effect brought about is: different types of bills have different sizes. By sliding the fastening block 10 and clamping it in the second slide groove 501, the worker can move the left and right positions of the two limit baffles 9 according to the length of the bill, and let the inner end faces of the two limit baffles 9 fit respectively with the two ends of the bill, so as to limit the bill, so that the bill will not swing left and right during transportation, and the printed bill is guaranteed to be neat. At the same time, the fastening screw 1001 at the upper end of the fastening block 10 is clamped in the connecting hole 9011 on the surface of the substrate 901. After the worker determines the position of the limit baffle 9, the nut on the surface of the fastening screw 1001 can be tightened to fix the limit baffle 9.

[0065] Specific usage and function of this embodiment: In the present invention, when it is necessary to print the bill, the driving motor 13 can be started, and the driving motor 13 will drive the active gear 1301 to rotate, and the active gear 1301 is meshed with the passive gear 12, and the tooth diameter of the active gear 1301 is smaller than the tooth diameter of the passive gear 12, which can slow down the rotation speed of the passive gear 12, and at the same time, the connecting shaft 11 is fixedly connected to the passive gear 12, so that when the passive gear 12 rotates, the two power wheels 1101 on the surface of the connecting shaft 11 will also rotate together, and the power wheel 1101 is in contact with the upper end surface of the bill, so that the power When the wheel 1101 rotates, the bill will move forward, and the surface of the power wheel 1101 is evenly grooved, so that when the power wheel 1101 drives the bill to be transported forward, the friction between the bill and the power wheel 1101 can be increased, which is convenient for transporting the bill. Different types of bills have different sizes. The fastening block 10 is slidably mounted in the second slide groove 501, so that workers can move the left and right positions of the two limit baffles 9 according to the length of the bill, so that the inner end faces of the two limit baffles 9 are respectively fitted with the two ends of the bill, so as to limit the bill, so that the bill will not swing left and right when being transported, ensuring The printed bill is neat, and the fastening screw 1001 at the upper end of the fastening block 10 is clamped in the connecting hole 9011 on the surface of the base plate 901. After the worker determines the position of the limit baffle 9, the nut on the surface of the fastening screw 1001 can be tightened to fix the limit baffle 9. When the worker needs to adjust the inclination angle of the placement plate 5, the pull rod 303 can be pulled outward. At this time, the limit cover plate 3 is out of contact with the fixed gear 601, and the limit cover plate 3 loses its limiting effect on the fixed gear 601. The worker can adjust the inclination angle of the placement plate 5 as needed. After the adjustment is completed, just loosen the pull rod. 303, the limit cover plate 3 will be re-connected to the outside of the fixed gear 601, so as to fix the placement plate 5. When the worker places the bill on the surface of the placement plate 5, the height of the bill will be reduced as the bill is printed. A bottom frame 7 is installed at the lower end of the cavity 502 on the surface of the placement plate 5, and a lifting plate 8 is clamped inside the cavity 502. Under the action of the elastic force of the second spring 8011, an upward thrust can be applied to the bill. After the bill paper is printed, the bill paper below will move upward, which can ensure that the power wheel 1101 can always fit tightly with the topmost bill, thereby realizing automatic transportation of the bill.

Claims

1. An automatic conveying structure of a chain paper receipt printer, characterized in that: include: A printer body (1), wherein a fixed frame (101) with an inverted U-shaped structure is fixedly installed above the inlet end of the printer body (1), a device box (1011) is installed on the right end surface of the fixed frame (101), and a connecting block (102) is installed on the left and right ends of the inlet end of the printer body (1), and a through hole is opened inside the connecting block (102); the fixing box (2) is symmetrically provided with two groups, and the fixing box (2) is fixedly installed on the outer end surface of the connecting block (102); a limiting cover plate (3), and the limiting cover plate (3 ) is located inside the fixed box (2), the inner surface of the limiting cover plate (3) is provided with a card slot (302), and a pull rod (303) is fixedly installed at the middle position of the outer end surface of the limiting cover plate (3); a placement plate (5), the upper end surface of the placement plate (5) is provided with two rectangular cavities (502), the front end surface of the placement plate (5) is fixedly installed with a connecting strip (503), and the front end surface of the connecting strip (503) is an arc structure; a fixed shaft (6), the fixed shaft (6) is symmetrically installed in two groups, and the fixed shaft (6) is fixedly installed at the left and right ends of the connecting strip (503) The fixed shaft (6) is clamped in the through hole inside the connecting block (102), and a fixed gear (601) is installed outside the fixed shaft (6), and the fixed gear (601) is located inside the fixed box (2); a bottom frame (7), the bottom frame (7) is provided with two groups, and the bottom frame (7) is fixedly installed just below the cavity (502) on the surface of the placement plate (5); a lifting plate (8), the lifting plate (8) is located inside the placement plate (5), and two limit rods (801) are fixedly installed on the lower end surface of the lifting plate (8), and the limit rods (801) are slidably clamped on the surface of the bottom frame (7). ; a limit baffle (9), wherein two groups of the limit baffles (9) are symmetrically arranged, the front end portion of the limit baffle (9) is in an inclined structure, and a base plate (901) is fixedly installed below the outer end surface of the limit baffle (9); a connecting shaft (11), wherein the left end of the connecting shaft (11) is rotatably connected to the left end side plate of the fixed frame (101), and the right end of the connecting shaft (11) passes through the right end side plate of the fixed frame (101) and is fixedly connected to the passive gear (12); a driving motor (13), wherein the driving motor (13) is fixedly installed on the outer end surface of the device box (1011).

2. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: A driving gear (1301) is fixedly mounted on the end of the transmission shaft of the driving motor (13); the driving gear (1301) is located inside the device box (1011); and the driving gear (1301) is meshed with the driven gear (12).

3. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: Two power wheels (1101) are installed on the surface of the connecting shaft (11), and grooves are evenly formed on the outer end surfaces of the power wheels (1101).

4. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: The inner end surfaces of the left and right side plates of the fixed box (2) are evenly provided with first sliding grooves (201), and the left and right ends of the limiting cover plate (3) are respectively provided with a limiting block (301), and the limiting block (301) is slidably mounted inside the first sliding groove (201).

5. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: The fixed gear (601) at the outer end of the fixed shaft (6) is clamped in the clamping groove (302) on the surface of the limiting cover plate (3), and the pull rod (303) at the outer end of the limiting cover plate (3) is sleeved with a first spring (4) on the outside, and one end of the inner side of the first spring (4) is fixedly connected to the limiting cover plate (3), and one side of the outer end of the first spring (4) is fixedly connected to the outer end side plate of the fixing box (2).

6. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: The outer portion of the limiting rod (801) is sleeved with a second spring (8011), the upper end of the second spring (8011) is fixedly connected to the lifting plate (8), and the lower end of the second spring (8011) is fixedly connected to the bottom frame (7).

7. The automatic conveying structure of a chain paper receipt printer as claimed in claim 1, characterized in that: The upper end surface of the placement plate (5) is provided with a second slide groove (501), a fastening block (10) is slidably mounted inside the second slide groove (501), and a fastening screw (1001) is fixedly mounted on the upper end surface of the fastening block (10).

8. The automatic conveying structure of a chain paper receipt printer as claimed in claim 7, characterized in that: A connection hole (9011) is provided on the surface of the base plate (901), a fastening screw (1001) at the upper end of the fastening block (10) is clamped inside the connection hole (9011), and a nut is connected to the surface of the fastening screw (1001).