Belt releasing mechanism for double-disc meter-counting hot stamping machine
By introducing a negative pressure housing and a buffer guide wheel structure into the meter-counting thermal printing machine, the problem of unclear thermal printing caused by the instability of the belt feeding mechanism was solved, and stable belt transmission and clear thermal printing effect were achieved.
Patent Information
- Application Number
- CN202520385866.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The tape feeding mechanism of the existing meter-counting thermal printing machine is not stable enough during use, resulting in unclear thermal printing, and the ordinary tape feeding wheel is not stable enough when rotating.
A negative pressure environment is created by using a negative pressure housing and an air extraction device, combined with a buffer guide wheel and a stabilizing ring structure to ensure stable belt transmission and clear thermal printing.
This improved the clarity of the heat-printing process and enhanced the stability of the tape unloading, preventing the tape from breaking under excessive tension and ensuring the smooth operation of the heat-printing process.
Smart Images
Figure CN223735690U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dual-disc metering thermal printing machine technology, and in particular to a tape feeding mechanism for a dual-disc metering thermal printing machine. Background Technology
[0002] The meter-counting thermal printing machine uses thermal printing tape instead of ink printing and adopts a special movable type loading and unloading structure, which can print on any soft packaging material. However, during the use of ordinary meter-counting thermal printing machines, the tape feeding mechanism does not have negative pressure treatment, resulting in unclear printing. In addition, the ordinary tape feeding wheel is not stable enough when rotating. Therefore, we have proposed a tape feeding mechanism for a double-disc meter-counting thermal printing machine. Utility Model Content
[0003] This application provides a tape feeding mechanism for a dual-disc metering thermal printing machine to solve the problems mentioned above.
[0004] This application provides a tape feeding mechanism for a dual-disc metering thermal printing machine, comprising:
[0005] The mounting plate has a tape feeding shaft fixedly connected to its lower right front end, and a tape feeding roll is rotatably sleeved on the outer front of the tape feeding shaft. A first guide wheel is rotatably connected to the left side of the tape feeding shaft at the front end of the mounting plate in an upward tilting direction. A second guide wheel is rotatably connected to the left side of the first guide wheel in an upward tilting direction. A third guide wheel is rotatably connected to the left side of the second guide wheel in an upward tilting direction. A negative pressure housing is fixedly connected to the upper front end of the mounting plate, and a cover plate is sealed and inserted into the left end of the negative pressure housing. A connecting rod is fixedly connected to the right end of the cover plate, and a fourth guide wheel is rotatably connected to the right end of the connecting rod. Rectangular insertion holes are opened through the upper and lower sides of the cover plate.
[0006] The rectangular sockets on the upper and lower sides are respectively located on the same horizontal plane as the upper end of the overlapping surface of the third guide wheel and the second guide wheel;
[0007] A buffer guide wheel is rotatably mounted on the lower front end of the support plate. The upper part of the support plate is rotatably mounted on the lower front end of the mounting plate via a rotating shaft. A buffer spring is connected to the upper left side of the support plate. The left end of the buffer spring is fixedly connected to the left rear part of the connecting shaft. An overlapping ring is rotatably sleeved on the outer front side of the connecting shaft.
[0008] Preferably, an air extraction pipe is fixedly inserted into the middle of the right end of the negative pressure housing, and the cover plate and the front and rear sides of the negative pressure housing are connected by snap fasteners. A sealing rubber layer is fixedly provided on the outer side of the insertion end of the cover plate.
[0009] Preferably, a first retaining ring is fixedly sleeved on the outer rear side of the tape-releasing shaft, and a first stabilizing ring is provided at the front end of the first retaining ring via a bearing. Multiple balls are arranged in a circular array on the outer side between the first stabilizing ring and the first retaining ring.
[0010] Preferably, the front end of the tape-releasing shaft has a threaded groove, and a screw is threadedly inserted into the threaded groove. The front end of the screw is fixedly connected to the rear end of the second retaining ring, and a second stabilizing ring is rotatably provided on the outer side of the rear end of the second retaining ring through a bearing. A nut is fixedly connected to the middle of the front end of the second retaining ring.
[0011] Preferably, the tape unwinding roll is located between the first stabilizing ring and the second stabilizing ring.
[0012] Preferably, a limiting stop ring is fixedly provided on the rear side of the overlapping ring.
[0013] Preferably, the rear end of the connecting shaft is fixedly connected to the front end of the mounting plate.
[0014] The technical solutions provided in this application have the following advantages compared with the prior art:
[0015] The structure provided in this application embodiment has an external vacuuming device connected to the air extraction pipe. The vacuuming device can be used to extract air from the inside of the negative pressure shell, thereby creating a negative pressure state inside the negative pressure shell, which makes the heat printing process clearer.
[0016] Furthermore, the support plate can rotate at a certain angle around the pivot, and through the tension of the buffer spring, it can buffer the belt overlapping the outside of the buffer guide wheel, preventing the belt from breaking due to excessive tension when releasing the belt, thus protecting the belt.
[0017] At the same time, the first and second stabilizing rings rotate synchronously with the unwinding roll, thus stabilizing the rotation of the unwinding roll. Attached Figure Description
[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the negative pressure housing of this utility model;
[0022] Figure 3 This is a cross-sectional view of the tape-laying axis of this utility model.
[0023] In the diagram: 1. Mounting plate; 2. Tape release shaft; 3. Tape release roll; 4. First guide wheel; 5. Second guide wheel; 6. Negative pressure housing; 7. Evacuation pipe; 8. Cover plate; 9. Buckle; 10. Third guide wheel; 11. Connecting shaft; 12. Overlap ring; 13. Buffer spring; 14. Rotating shaft; 15. Buffer guide wheel; 16. Support plate; 17. Sealing rubber layer; 18. Rectangular socket; 19. Connecting rod; 20. Fourth guide wheel; 21. First retaining ring; 22. First stabilizing ring; 23. Ball bearing; 24. Screw; 25. Nut; 26. Second retaining ring; 27. Second stabilizing ring. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] Various embodiments of this application may exist in the form of a range. It should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of this application. Therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. In addition, whenever a numerical range is indicated in this application, it means including any referenced number (fraction or integer) within the indicated range. Unless otherwise specified, all raw materials, reagents, instruments, and equipment used in this application can be purchased commercially or prepared using existing equipment.
[0026] In this application, unless otherwise stated, directional terms such as "upper" and "lower" specifically refer to the drawing directions in the accompanying drawings. Furthermore, in this application, the terms "comprising," "including," etc., mean "including but not limited to." In this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this application, "and / or" describes the relationship between related objects, indicating that three relationships may exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. A and B can be singular or plural. In this application, "at least one" means one or more, and "more than one" means two or more. "At least one," "at least one of the following," or similar expressions refer to any combination of these items, including any combination of a single item or a plural item. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can both mean: a, b, c, ab, i.e., a and b, ac, bc, or abc, where a, b, and c can be a single or multiple.
[0027] like Figures 1-3 As shown in the figure, this application embodiment provides a tape feeding mechanism for a dual-disc metering thermal printing machine, comprising:
[0028] Mounting plate 1, with a tape feeding shaft 2 fixedly connected to the lower right corner of the front end of mounting plate 1, and a tape feeding roll 3 rotatably sleeved on the outer front of the tape feeding shaft 2. A first guide wheel 4 is rotatably connected to the front end of mounting plate 1 in an upward tilting direction on the left side of the tape feeding shaft 2. A second guide wheel 5 is rotatably connected to the left side of the first guide wheel 4 in an upward tilting direction. A third guide wheel 10 is rotatably connected to the left side of the second guide wheel 5 in an upward tilting direction. A negative pressure housing 6 is fixedly connected to the upper part of the front end of mounting plate 1, and a cover plate 8 is sealed and inserted into the left end of the negative pressure housing 6. A connecting rod 19 is fixedly connected to the right end of the cover plate 8, and a fourth guide wheel 20 is rotatably connected to the right end of the connecting rod 19. Rectangular insertion slots 18 are opened through the upper and lower sides of the cover plate 8.
[0029] The rectangular sockets 18 on the upper and lower sides are located on the same horizontal plane as the upper end of the overlapping surfaces of the third guide wheel 10 and the second guide wheel 5, respectively;
[0030] A buffer guide wheel 15 is rotatably mounted on the lower front end of a support plate 16. The upper part of the support plate 16 is rotatably mounted on the lower front end of a mounting plate 1 via a rotating shaft 14. A buffer spring 13 is connected to the upper left side of the support plate 16. The left end of the buffer spring 13 is fixedly connected to the rear left side of a connecting shaft 11. An overlapping ring 12 is rotatably sleeved on the outer front side of the connecting shaft 11.
[0031] Specifically, the support plate 16 can rotate at a certain angle around the pivot 14. Through the tension of the buffer spring 13, it can buffer the belt overlapping the outside of the buffer guide wheel 15, preventing the belt from breaking due to excessive tension when releasing the belt, thus protecting the belt.
[0032] like Figure 1 As shown: A suction pipe 7 is fixedly inserted into the middle of the right end of the negative pressure housing 6. The cover plate 8 and the front and rear sides of the negative pressure housing 6 are fastened together by a buckle 9. A sealing rubber layer 17 is fixedly provided on the outer side of the insertion end of the cover plate 8.
[0033] Specifically: The air extraction pipe 7 is connected to an external air extraction device, which can be a vacuum device. The air extraction device is used to extract air from the inside of the negative pressure housing 6, so that a negative pressure state is formed inside the negative pressure housing 6.
[0034] like Figure 1 and Figure 2 As shown: A first retaining ring 21 is fixedly sleeved on the outer rear side of the tape-releasing shaft 2. The front end of the first retaining ring 21 is provided with a first stabilizing ring 22 through a bearing. Multiple balls 23 are arranged in a ring array on the outer side between the first stabilizing ring 22 and the first retaining ring 21.
[0035] Specifically, the ball bearing 23 makes the rotation of the first stabilizing ring 22 more stable.
[0036] like Figure 3 As shown: The front end of the tape-releasing shaft 2 has a threaded groove, and a screw 24 is threadedly inserted into the threaded groove. The front end of the nut screw 24 is fixedly connected to the rear end of the second retaining ring 26, and a second stabilizing ring 27 is provided on the outer side of the rear end of the second retaining ring 26 through a bearing. A nut 25 is fixedly connected to the middle of the front end of the second retaining ring 26.
[0037] Specifically: the second retaining ring 26 can be disassembled to install the unwinding roll 3.
[0038] like Figure 3 As shown: The tape roll 3 is located between the first stabilizing ring 22 and the second stabilizing ring 27.
[0039] Specifically: the first stabilizing ring 22 and the second stabilizing ring 27 press the front and rear sides of the unwinding roll 3, which makes the rotation of the unwinding roll 3 more stable.
[0040] like Figure 1 As shown: A limiting stop ring is fixedly provided on the rear side of the overlapping ring 12.
[0041] Specifically: the overlapping ring 12 can overlap the placed belt to prevent the belt from colliding with the set buffer spring 13.
[0042] like Figure 1 As shown: The rear end of the connecting shaft 11 is fixedly connected to the front end of the mounting plate 1.
[0043] Specifically: the connecting shaft 11 is the connecting carrier of the overlapping ring 12.
[0044] Operating principle: When the equipment is running, firstly, the second retaining ring 26 is disassembled by tightening the nut 25 with an external tool. Then, the unwinding roll 3 is sleeved on the outside of the unwinding shaft 2. After that, the second retaining ring 26 is installed by tightening the nut 25 with an external tool. This causes the first stabilizing ring 22 and the second stabilizing ring 27 to press against the front and rear sides of the unwinding roll 3, making the rotation of the unwinding roll 3 more stable.
[0045] And open the buckle 9 and remove the cover plate 8 to remove the connecting rod 19. Then pull out the tape roll 3 and attach it to the lower end of the first guide wheel 4, the left end of the second guide wheel 5, and insert it into the rectangular socket 18 on the lower side of the cover plate 8. Then attach it to the fourth guide wheel 20, and then insert it into the rectangular socket 18 on the upper side of the cover plate 8. After that, attach it to the third guide wheel 10, the left side of the overlapping ring 12 and the lower part of the buffer guide wheel 15 in sequence. Finally, it is sent to the next structure of the double-disc metering thermal printing machine.
[0046] Then, insert the cover plate 8 into the inside of the negative pressure housing 6 and fasten it with the buckle 9. The air extraction pipe 7 is connected to an external air extraction device. A vacuum device can be used to extract air from the inside of the negative pressure housing 6, so that the inside of the negative pressure housing 6 is in a negative pressure state, which makes the heat printing process clearer.
[0047] Furthermore, the support plate 16 can rotate a certain angle around the pivot 14. Through the tension of the buffer spring 13, it can buffer the belt overlapping the outside of the buffer guide wheel 15, preventing the belt from breaking due to excessive tension when releasing the belt, thus protecting the belt.
[0048] At the same time, the first stabilizing ring 22 and the second stabilizing ring 27 will rotate synchronously with the unwinding roll 3, so that the rotation of the unwinding roll 3 is stable.
[0049] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed in this application.
Claims
1. A tape feeding mechanism for a dual-disc metering thermal printing machine, characterized in that, Include: The mounting plate (1), the lower right corner of the front end of the mounting plate (1) is fixedly connected with the tape releasing shaft (2), and the outer side of the front end of the tape releasing shaft (2) is rotatably sleeved with the tape releasing reel (3), the left side of the front end of the mounting plate (1) is rotatably connected with the first guide roller (4) in the direction of tilting upward, the left side of the first guide roller (4) is rotatably connected with the second guide roller (5) in the direction of tilting upward, the left side of the second guide roller (5) is rotatably connected with the third guide roller (10) in the direction of tilting upward, the upper part of the front end of the mounting plate (1) is fixedly connected with the negative pressure shell (6), and the left end of the negative pressure shell (6) is sealingly inserted with the cover plate (8), the right end of the cover plate (8) is fixedly connected with the connecting rod (19), and the right end of the connecting rod (19) is rotatably connected with the fourth guide roller (20), the upper and lower sides of the cover plate (8) are both provided with a rectangular socket (18); The upper and lower sides of the rectangular socket (18) are located on the same horizontal plane with the upper end of the lap joint surface of the third guide roller (10) and the second guide roller (5) respectively. The buffer guide roller (15) is rotatably arranged at the front end of the lower part of the supporting plate (16), the upper part of the supporting plate (16) is rotatably arranged at the front end of the lower part of the mounting plate (1) through the rotating shaft (14), the left side of the upper end of the supporting plate (16) is connected with the buffer spring (13), the left end of the buffer spring (13) is fixedly connected with the left rear part of the connecting shaft (11), and the outer front side of the connecting shaft (11) is rotatably sleeved with the lap joint ring (12).
2. The tape dispensing mechanism for a double disk rice counting and thermal printing machine according to claim 1, characterized in that: The right end of the negative pressure shell (6) is fixedly inserted with the air exhaust pipe (7), the outer front and rear sides of the cover plate (8) and the negative pressure shell (6) are connected by buckling (9), and the outer side of the insertion end of the cover plate (8) is fixedly provided with a sealing rubber layer (17).
3. The tape dispensing mechanism for a double disk thermal printer according to claim 1, wherein: The outer rear side of the tape releasing shaft (2) is fixedly sleeved with the first stop ring (21), the front end of the first stop ring (21) is rotatably provided with the first stabilizing ring (22) through the bearing, and a plurality of rolling balls (23) are rotatably arranged in an annular array on the outer side between the first stabilizing ring (22) and the first stop ring (21).
4. The tape dispensing mechanism for a double disk thermal printer according to claim 1, wherein: The front end of the tape releasing shaft (2) is provided with a threaded groove, and a threaded rod (24) is inserted in the threaded groove, the front end of the threaded rod (24) is fixedly connected with the rear end of the second stop ring (26), the rear end of the second stop ring (26) is rotatably provided with the second stabilizing ring (27) through the bearing, and the front end of the second stop ring (26) is fixedly connected with the nut (25).
5. The tape dispensing mechanism for a dual platen thermal printer of claim 1, wherein: The tape releasing reel (3) is located between the first stabilizing ring (22) and the second stabilizing ring (27).
6. The tape dispensing mechanism for a dual platen thermal printer of claim 1, wherein: The rear side of the lap joint ring (12) is fixedly provided with a limiting stop ring.
7. The tape dispensing mechanism for a dual platen thermal printer of claim 1, wherein: The rear end of the connecting shaft (11) is fixedly connected with the front end of the mounting plate (1).