Novel thermal transfer coding machine

Abstract

The utility model relates to the technical field of coding machines, and provides a novel thermal transfer coding machine which comprises a machine frame, a controller, at least one group of coding units arranged on the machine frame, a coding material unwinding roller, a driving roller and an alarm, a printing table is arranged on the machine frame, and the coding material unwinding roller and the driving roller are respectively arranged on the machine frame and located on two sides of the printing table. The code printing unit comprises an unwinding shaft, a winding shaft, a first detection shaft, a second detection shaft, at least one thermal printing head, a first driving mechanism and a second driving mechanism, the first driving mechanism is in output connection with the winding shaft and drives the winding shaft to rotate so as to wind the waste colored tape subjected to code printing, and the thermal printing heads are arranged on the rack and located above the printing table; and the encoders on the first detection shaft and the second detection shaft respectively detect the shaft rotation angle of each winding of the colored tape in real time and send the output pulse number to the controller. The utility model solves the problems that the code printing is incomplete, the product has no date, the thermal transfer ribbon is broken, and the effective detection cannot be realized during the thermal transfer printing of the existing code printing machine.

Description

Technical Field

[0001] The utility model relates to the technical field of coding machines, in particular to a novel thermal transfer coding machine. Background Art

[0002] During jelly filling production, each semi-finished jelly needs to be coded (batch / date, etc.) on its sealing surface. Existing coding machines are made by equipment manufacturers, but in actual use, problems such as incomplete coding, product without date, and broken carbon ribbon often occur, which cannot be effectively detected and thus affect the product coding quality. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes a new thermal transfer coding machine which reduces the frequency of abnormalities, improves the quality of product coding, is easy to use and has stable operation.

[0004] To solve this technical problem, the utility model adopts the following scheme: a novel thermal transfer coding machine, comprising a frame, a controller, at least one group of coding units arranged on the frame, a coding material unwinding roller, an active roller and an alarm, the frame is provided with a printing table, the coding material unwinding roller and the active roller are respectively arranged on the frame at both sides of the printing table, each group of coding units is arranged on the frame above the printing table to code the material conveyed to the active roller by the coding material unwinding roller, the coding unit comprises a unwinding shaft, a winding shaft, a first detection shaft, a second detection shaft, at least one thermal printing head, a first driving mechanism and a second driving mechanism, the unwinding shaft and the winding shaft are respectively arranged on the frame between the two ends of the coding material unwinding roller and the active roller, the first detection shaft and the second detection shaft are respectively arranged side by side on the frame between the unwinding shaft and the winding shaft, A ribbon is sleeved, and the ribbon is sent through the printing table and located above the material to be coded after being wound around the first detection shaft. After passing through the top of the printing table, the ribbon is sent to the winding shaft after being wound around the second detection shaft for winding up the waste ribbon. The first driving mechanism is output-connected and drives the winding shaft to rotate to wind up the waste ribbon after coding. Each thermal print head is arranged on a frame and located above the printing table. The second driving mechanism is output-connected and drives each thermal print head to move up and down to press the ribbon down onto the material to be coded to perform thermal transfer coding on the material to be coded. Encoders are respectively provided on the first detection shaft and the second detection shaft. The encoders on the first detection shaft and the second detection shaft respectively detect the axis rotation angle of the ribbon each time it is wound around in real time and send the output pulse number to the controller. The active roller, the first driving mechanism, the second driving mechanism, each thermal print head and the alarm are all connected to and controlled by the controller.

[0005] Further improvements include a first tensioning adjustment shaft and a second tensioning adjustment shaft, wherein the first tensioning adjustment shaft is arranged between the unwinding shaft and the first detection shaft, and the ribbon on the unwinding shaft is first wound around the first tensioning adjustment shaft and then sent to the first detection shaft, and the second tensioning adjustment shaft is arranged between the second detection shaft and the winding shaft, and the waste ribbon on the second detection shaft is wound around the second tensioning adjustment shaft and then sent to the winding shaft.

[0006] A further improvement is that the first tensioning adjustment shaft and the second tensioning adjustment shaft both include a rotating shaft, a friction plate, an adjustment handle and a spring, the rotating shaft being rotatably disposed on the frame and one end of the rotating shaft guiding the ribbon, the friction plate being sleeved on the end of the rotating shaft away from the ribbon and the friction plate being in contact with a side of the rotating shaft and the frame being rotatably connected, the spring being sleeved on the end of the rotating shaft away from the ribbon and resting against a side of the friction plate away from the frame, the adjustment handle being disposed on the free end of the rotating shaft away from the ribbon and the adjustment handle being able to press the compression amplitude of the adjustment spring into one end of the ribbon and thereby adjusting the resistance between the friction plate and the frame.

[0007] As a further improvement, the first driving mechanism is a servo transmission mechanism.

[0008] As a further improvement, the second driving mechanism is one of a pneumatic cylinder, a hydraulic cylinder, and a screw motor.

[0009] A further improvement is that the unwinding shaft includes a second rotating shaft, a second friction plate, a second adjusting handle and a second spring, the second rotating shaft being rotatably arranged on the frame and a ribbon roll being placed on one end of the second rotating shaft, the second friction plate being sleeved on the end of the second rotating shaft away from the ribbon roll and the second friction plate being in contact with and connected to a side of the second rotating shaft and the frame being rotatably connected, the second spring being sleeved on the end of the second rotating shaft away from the ribbon roll and resting against a side of the second friction plate away from the frame, the second adjusting handle being arranged on the free end of the second rotating shaft away from the ribbon roll and the second adjusting handle being able to press inwardly at one end of the ribbon roll to adjust the compression amplitude of the second spring and thereby adjust the resistance between the second friction plate and the frame.

[0010] As a further improvement, the second rotating shaft is provided with a groove at one end where the ribbon roll is arranged, and an elastic sheet is arranged in the groove, wherein the elastic sheet is stepped, and one end of the elastic sheet is embedded in the groove and the other end protrudes out of the surface of the groove.

[0011] A further improvement is that each thermal print head includes a seat body, a heating mechanism, a font mounting seat and a font block, the heating mechanism is arranged in the middle of the seat body, the upper part of the seat body is connected to the output end of the second driving mechanism, the font mounting seat is detachably arranged on the lower surface of the seat body, one side of the mounting groove of the font mounting seat is provided with a slope, the font block is provided with a protrusion adapted to the mounting groove of the font mounting seat, and the font block is detachably installed on the font mounting seat through the cooperation of the protrusion and the mounting groove.

[0012] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: by setting the first detection axis and the second detection axis and respectively setting encoders on the first detection axis and the second detection axis, the axial rotation angle of the ribbon each time it is wound is detected in real time and the output pulse number is sent to the controller, so that the data acquisition pulses of the unwinding axis and the winding axis are compared through the two encoders, and the controller compares the monitoring data in real time. When there is a large deviation in the acquisition information of the two encoders on the first detection axis and the second detection axis at the unwinding axis and the winding axis, or the pulse number deviates greatly from the preset pulse value, the ribbon is broken and the ribbon slips. The controller controls the alarm to sound an alarm, and the workers can deal with it quickly and effectively in a timely and effective manner, thereby effectively reducing the frequency of abnormalities, improving the product coding quality, and being convenient to use and stable in operation. Through further settings, that is, the settings of the first tensioning adjustment shaft and the second tensioning adjustment shaft, the adjustment handle is used to press the compression amplitude of the adjustment spring at one end of the ribbon to adjust the resistance between the friction plate and the frame, so that the stable resistance can be quickly adjusted. Because its resistance is small and stable, even after the diameter of the ribbon is reduced, a large pulling force is not required, and the ribbon is not easy to tear off. The second friction plate, the second adjustment handle and the second spring are arranged on the unwinding shaft to cooperate so that the unwinding speed will not be too fast or too slow to achieve stable unwinding. At the same time, the ribbon roll can be fixed by providing a pre-tightening force through the arrangement of an elastic sheet, which is convenient for workers to replace the ribbon roll. A slope is arranged on the mounting groove of the font mounting seat on the thermal print head so that the font block has only one installation direction, which avoids employee work errors and the installation of the font block's font particles in reverse, and avoids the problem of batch quality abnormalities. It can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0015] Figure 3 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the second adjustable elastic piece in the embodiment of the utility model. DETAILED DESCRIPTION

[0017] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0018] refer to Figure 1-Figure 3The preferred new thermal transfer coding machine of the utility model includes a frame 1, a controller, two groups of coding units arranged on the frame 1, a coding material unwinding roller 2, an active roller 3 and an alarm, the frame 1 is provided with a printing table 101, the coding material unwinding roller 2 and the active roller 3 are respectively arranged on the frame 1 on both sides of the printing table 101, each group of coding units is arranged on the frame 1 above the printing table 101 to code the material transported from the coding material unwinding roller 2 to the active roller 3, the coding unit includes an unwinding shaft, a winding shaft 5, a first detection shaft 6, a second detection shaft 7, five thermal print heads 8, a first driving mechanism 9, a second driving mechanism 10, a first tensioning adjustment shaft 11 and a second tensioning adjustment shaft 12, the unwinding shaft and the winding shaft 5 are respectively arranged on the frame 1 is located between the two ends of the coding material unwinding roller 2 and the active roller 3, the first detection shaft 6 and the second detection shaft 7 are respectively arranged side by side on the frame 1 and located between the unwinding shaft and the winding shaft 5, the first tension adjustment shaft 11 is arranged between the unwinding shaft and the first detection shaft 6, the second tension adjustment shaft 12 is arranged between the second detection shaft 7 and the winding shaft 5, the unwinding shaft is sleeved with a ribbon roll 13, the unwinding shaft includes a second rotating shaft 41, a second friction plate 42, a second adjustment handle 43 and a second spring 44, the second rotating shaft 41 is rotatably arranged on the frame 1 and the ribbon roll 13 is placed on one end of the second rotating shaft 41, the second friction plate 42 is sleeved on the end of the second rotating shaft 41 away from the ribbon roll 13 and the second friction plate 42 is connected to the second rotating shaft The movable shaft 41 is in contact with one side of the frame 1 that is rotatably connected. The second spring 44 is sleeved on the end of the second rotating shaft 41 away from the ribbon roll 13 and abuts against the side of the second friction plate 42 away from the frame 1. The second adjusting handle 43 is arranged on the free end of the second rotating shaft 41 away from the ribbon roll 13 and the second adjusting handle 43 can press the compression amplitude of the second spring 44 into one end of the ribbon roll 13 to adjust the resistance between the second friction plate 442 and the frame 1. The second rotating shaft 41 is provided with a groove at one end where the ribbon roll 13 is provided and an elastic sheet 45 is provided in the groove. The elastic sheet 45 is step-shaped, one end of the elastic sheet 45 is embedded in the groove and the other end protrudes from the surface of the groove. The ribbon 13 on the unwinding shaft is wound around the first tensioning adjustment shaft 1 1 and then sent to the first detection shaft 6, the ribbon 13 is sent through the printing table 101 above the material to be coded and then passed through the second detection shaft 7, the waste ribbon on the second detection shaft 7 is wound around the second tensioning adjustment shaft 12 and then sent to the reel shaft 5 for reeling the waste ribbon, the first driving mechanism 9 is a servo transmission mechanism, the first driving mechanism 9 output connection and drives the reel shaft 5 to rotate to reel the waste ribbon after coding, each thermal print head 8 is arranged on the frame 1 and is located above the printing table 101, the second driving mechanism 10 is a cylinder, the second driving mechanism 10 output connection and drives each thermal print head 8 to move up and down to press the ribbon down to the material to be coded for thermal transfer coding of the material to be coded, the first detection shaft 6 and the second detection shaft 7 are respectively provided with encoders,The encoders on the first detection shaft 6 and the second detection shaft 7 respectively detect the rotation angle of the ribbon 13 around the axis in real time and send the output pulse number to the controller. The active roller 3, the first drive mechanism 9, the second drive mechanism 10, each thermal print head 8 and the alarm are all connected to and controlled by the controller.

[0019] Among them, each thermal print head 8 includes a seat body 81, a heating mechanism 82, a font mounting seat 83 and a font block. The heating mechanism 82 is arranged in the middle of the seat body 81. The upper part of the seat body 81 is connected to the output end of the second driving mechanism 10. The font mounting seat 83 is detachably arranged on the lower surface of the seat body 81. A slope 8311 is provided on one side of the mounting groove 831 of the font mounting seat 83. The font block is provided with a protrusion adapted to the mounting groove 831 of the font mounting seat 83. The font block is detachably installed on the font mounting seat 83 through the cooperation of the protrusion and the mounting groove 831.

[0020] The first tensioning adjustment shaft 11 and the second tensioning adjustment shaft 12 both include a rotating shaft, a friction plate, an adjustment handle and a spring. The rotating shaft is rotatably arranged on the frame 1 and one end of the rotating shaft guides the ribbon. The friction plate is sleeved on the end of the rotating shaft away from the ribbon and the friction plate is in contact with the side of the rotating shaft and the frame that are rotatably connected. The spring is sleeved on the end of the rotating shaft away from the ribbon and presses against the side of the friction plate away from the frame 1. The adjustment handle is arranged on the free end of the rotating shaft away from the ribbon and the adjustment handle can press the compression amplitude of the adjustment spring into one end of the ribbon to adjust the resistance between the friction plate and the frame 1.

[0021] In the above embodiment, the second driving mechanism can also be one of a hydraulic cylinder and a screw motor. The number of coding units can be set according to the size requirements of the machine. The number of thermal print heads in the coding unit can also be freely adjusted according to the number of codes produced and the size specifications. The first tensioning adjustment axis and the second tensioning adjustment axis may not be set.

[0022] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A new type of thermal transfer coding machine, comprising a frame, a controller, at least one set of coding units arranged on the frame, a coding material unwinding roller, an active roller and an alarm, characterized in that: The frame is provided with a printing table, the coding material unwinding roller and the active roller are respectively arranged on the frame at both sides of the printing table, each group of coding units is arranged on the frame above the printing table to code the material conveyed from the coding material unwinding roller to the active roller, the coding unit comprises an unwinding shaft, a winding shaft, a first detection shaft, a second detection shaft, at least one thermal printing head, a first driving mechanism and a second driving mechanism, the unwinding shaft and the winding shaft are respectively arranged on the frame between the two ends of the coding material unwinding roller and the active roller, the first detection shaft and the second detection shaft are respectively arranged side by side on the frame between the unwinding shaft and the winding shaft, a ribbon is sleeved on the unwinding shaft, the ribbon is wound around the first detection shaft and then sent to the printing table above the material to be coded, and the ribbon passes through The waste ribbon is wound around the second detection shaft above the printing table and then sent to the winding shaft for winding. The first driving mechanism is output-connected and drives the winding shaft to rotate to wind up the waste ribbon after coding. Each thermal print head is arranged on the frame and is located above the printing table. The second driving mechanism is output-connected and drives each thermal print head to move up and down to press the ribbon onto the material to be coded to perform thermal transfer coding on the material to be coded. Encoders are respectively provided on the first detection shaft and the second detection shaft. The encoders on the first detection shaft and the second detection shaft respectively detect the axis rotation angle of the ribbon each time it is wound around in real time and send the output pulse number to the controller. The active roller, the first driving mechanism, the second driving mechanism, each thermal print head and the alarm are all connected to and controlled by the controller.

2. According to the new thermal transfer printer of claim 1, it is characterized by: It also includes a first tensioning adjustment shaft and a second tensioning adjustment shaft. The first tensioning adjustment shaft is arranged between the unwinding shaft and the first detection shaft. The ribbon on the unwinding shaft is first wound around the first tensioning adjustment shaft and then sent to the first detection shaft. The second tensioning adjustment shaft is arranged between the second detection shaft and the winding shaft. The waste ribbon on the second detection shaft is wound around the second tensioning adjustment shaft and then sent to the winding shaft.

3. The new thermal transfer printer according to claim 2 is characterized in that: The first tensioning adjustment shaft and the second tensioning adjustment shaft both include a rotating shaft, a friction plate, an adjustment handle and a spring. The rotating shaft is rotatably arranged on the frame and one end of the rotating shaft guides the ribbon. The friction plate is sleeved on the end of the rotating shaft away from the ribbon and the friction plate is in contact with the side of the rotating shaft and the frame that are rotatably connected. The spring is sleeved on the end of the rotating shaft away from the ribbon and presses against the side of the friction plate away from the frame. The adjustment handle is arranged on the free end of the rotating shaft away from the ribbon and the adjustment handle can press the compression amplitude of the adjustment spring into one end of the ribbon to adjust the resistance between the friction plate and the frame.

4. The new thermal transfer printer according to claim 1 is characterized in that: The first driving mechanism is a servo transmission mechanism.

5. The new thermal transfer printer according to claim 1 is characterized in that: The second driving mechanism is one of a pneumatic cylinder, a hydraulic cylinder, and a screw motor.

6. According to the new thermal transfer printer of claim 1, it is characterized by: The unwinding shaft includes a second rotating shaft, a second friction plate, a second adjusting handle and a second spring. The second rotating shaft is rotatably arranged on the frame and a ribbon roll is placed on one end of the second rotating shaft. The second friction plate is sleeved on the end of the second rotating shaft away from the ribbon roll and the second friction plate is in contact with a side of the second rotating shaft and the frame that are rotatably connected. The second spring is sleeved on the end of the second rotating shaft away from the ribbon roll and presses against the side of the second friction plate away from the frame. The second adjusting handle is arranged on the free end of the second rotating shaft away from the ribbon roll and the second adjusting handle can press inward at one end of the ribbon roll to adjust the compression amplitude of the second spring and thereby adjust the resistance between the second friction plate and the frame.

7. The new thermal transfer printer according to claim 6 is characterized in that: The second rotating shaft is provided with a groove at one end where the ribbon roll is arranged, and an elastic sheet is arranged in the groove. The elastic sheet is stepped, and one end of the elastic sheet is embedded in the groove and the other end protrudes from the surface of the groove.

8. The new thermal transfer printer according to claim 1 is characterized in that: Each thermal print head includes a seat body, a heating mechanism, a font mounting seat and a font block. The heating mechanism is arranged in the middle of the seat body. The upper part of the seat body is connected to the output end of the second driving mechanism. The font mounting seat is detachably arranged on the lower surface of the seat body. One side of the mounting groove of the font mounting seat is provided with a slope. The font block is provided with a protrusion adapted to the mounting groove of the font mounting seat. The font block is detachably installed on the font mounting seat through the cooperation of the protrusion and the mounting groove.

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