A high-speed printing heat-sensitive material take-up tension regulating mechanism

Abstract

This utility model relates to the field of high-speed printing thermal materials technology, and in particular to a winding tension adjustment mechanism for high-speed printing thermal materials. It includes an unwinding roller and a tension adjustment component. An antistatic component is located on the side of the tension adjustment component away from the unwinding roller, and a dust removal component is located on the side of the antistatic component close to the tension adjustment component. A pressing component is located on the antistatic component, and a winding roller is located on the side of the antistatic component away from the tension adjustment component. The antistatic component includes a lower housing and an upper housing. A feed inlet is opened on the side of the lower housing and the upper housing close to the tension adjustment component. An ionizer is installed inside both the lower housing and the upper housing. In this utility model, static electricity can be eliminated before the thermal material contacts the winding roller, preventing the thermal material from developing micro-wrinkles or unevenness due to static electricity, which could cause gaps and allow air to enter. This avoids the phenomenon of the outer layer material wrinkling the inner layer material after winding.

Description

Technical Field

[0001] This utility model relates to the field of high-speed printing thermal materials technology, specifically a winding tension adjustment mechanism for high-speed printing thermal materials. Background Technology

[0002] High-speed printing thermal material is a special paper or film material with a thermal coating on its surface. When the print head applies heat to it during the printing process, the thermal coating will undergo a rapid chemical reaction, thereby displaying information such as text, patterns or barcodes on the material surface. This material has the advantages of fast printing speed, no need for ink or toner, and ease of use.

[0003] The winding tension adjustment mechanism for thermal printing materials is a device used to control the tension during the winding process. Its main function is to ensure that the thermal material maintains appropriate tension during winding. This mechanism is widely used in the production process of thermal labels, tickets and other materials, and is a key link in ensuring product quality.

[0004] During the winding and conveying process, the thermal material comes into contact with and rubs against the various components of the tension adjustment mechanism, generating static electricity. This static electricity alters the interaction forces between the thermal materials, causing gaps to form between them due to minute wrinkles or unevenness, allowing air to enter. Since a certain amount of air is trapped between each layer of the thermal material after winding, even under conditions with automatic tension adjustment, the outer layer material may wrinkle the inner layer material, thus affecting the winding quality of the thermal material. Therefore, a high-speed printing thermal material winding tension adjustment mechanism is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed printing thermal material winding tension adjustment mechanism that can eliminate static electricity on the thermal material before it comes into contact with the winding roller, preventing air from entering due to tiny wrinkles or unevenness caused by static electricity, and avoiding the phenomenon of the outer layer material wrinkling the inner layer material after winding, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-speed printing thermal material winding tension adjustment mechanism includes an unwinding roller and a tension adjustment component. An antistatic component is located on the side of the tension adjustment component away from the unwinding roller, and a dust removal component is located on the side of the antistatic component near the tension adjustment component. A pressing component is mounted on the antistatic component. A winding roller is located on the side of the antistatic component away from the tension adjustment component. The antistatic component includes a lower housing and an upper housing. A feed inlet is located on the side of the lower housing and the upper housing near the tension adjustment component. An ionizer is installed inside both the lower housing and the upper housing. A discharge outlet is located on the side of the lower housing and the upper housing away from the tension adjustment component. The dust removal component includes a dust removal scraper located at the feed inlet of the lower housing and the upper housing. A dust collection box with a top opening is located at the bottom of the side wall of the lower housing near the feed inlet.

[0008] As a further optimization of this utility model, the tension adjustment assembly includes a magnetic powder brake mechanically connected to one end of the unwinding roller and a pair of symmetrically arranged guide rollers. A detection roller is provided between the guide rollers, and the setting height of the detection roller is higher than that of the guide roller. Tension detectors are mechanically connected to both ends of the detection roller. A pair of conveying rollers are provided on one side of the guide roller, and an AC servo motor is mechanically connected to one end of the conveying roller.

[0009] As a further optimization of this utility model, the tension detector is externally connected to a tension controller, the tension controller is electrically connected to a magnetic powder brake, the AC servo motor is externally connected to an AC servo amplifier, and the AC servo amplifier is electrically connected to the tension controller.

[0010] As a further optimization of this utility model, the lower housing is rotatably connected to the front and rear sides by a rotating shaft, and a connecting bolt passes through the side of the connecting rotating plate away from the rotating shaft. The upper housing is provided with connecting screw holes that cooperate with the connecting bolts on the front and rear sides.

[0011] As a further optimization of this utility model, the following features are provided: an installation groove is provided in the feed inlet; an installation strip is fixedly connected to the dust removal scraper and the dust removal scraper is installed in the installation groove through the installation strip; the inner cavity of the installation groove is provided with several return springs; one end of the return spring is fixedly connected to the inner end face of the installation groove, and the other end contacts the end of the installation strip.

[0012] As a further optimization of this utility model, the cross-section of the dust removal scraper is a right-angled trapezoid, the tip of the right-angled trapezoid is rounded, and the hypotenuse of the right-angled trapezoid is close to the tension adjustment component.

[0013] As a further optimization of this utility model, the dust collection box has dust baffles symmetrically and fixedly connected to both ends of its top, a T-shaped clip is fixedly connected to one side of the dust collection box, and a T-shaped slot that cooperates with the T-shaped clip is opened on one side wall of the lower box.

[0014] As a further optimization of this utility model, the pressing assembly includes a connecting support rod fixedly connected to the top of the upper housing. A connecting support plate is symmetrically provided at the end of the connecting support rod away from the upper housing. A pressing roller is rotatably connected between the connecting support plates. The setting height of the pressing roller is lower than the setting height of the winding roller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the tension adjustment component controls the tension during the winding process, ensuring that the heat-sensitive material maintains appropriate tension during winding. The antistatic component eliminates static electricity from the heat-sensitive material before it contacts the winding roller, preventing air from entering due to micro-wrinkles or unevenness caused by static electricity. This avoids the outer layer material wrinkling the inner layer material after winding, thus improving the winding quality of the heat-sensitive material. The dust removal component scrapes and collects dust adsorbed by static electricity on the heat-sensitive material before it passes through the antistatic component, further improving the winding quality. The clamping component provides clamping force after dust removal and antistatic treatment, ensuring the heat-sensitive material is tightly wound onto the winding roller during winding, thereby increasing the winding density and quality, resulting in a neater and more compact final product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the static elimination component of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear structure of the static elimination component of this utility model;

[0020] Figure 4 This is an exploded view of the structure of the static elimination component of this utility model;

[0021] Figure 5 This is an exploded rear view of the static elimination component of this utility model;

[0022] Figure 6 This is a rear sectional view of the lower housing of this utility model;

[0023] Figure 7 This utility model Figure 6A magnified view of a portion of the image;

[0024] Figure 8 This utility model Figure 7 Enlarged view of point A.

[0025] In the diagram: 1. Unwinding roller; 2. Tension adjustment assembly; 21. Magnetic powder brake; 22. Guide roller; 23. Detection roller; 24. Tension detector; 25. Conveyor roller; 26. AC servo motor; 3. Static eliminator assembly; 31. Lower housing; 32. Upper housing; 33. Feed inlet; 34. Ionizing air bar; 35. Discharge outlet; 36. Rotating shaft; 37. Connecting rotating plate; 38. Connecting bolt; 39. Connecting screw hole; 4. Dust removal assembly; 41. Dust removal scraper; 42. Mounting groove; 43. Mounting strip; 44. Return spring; 45. Dust collection box; 46. Dust baffle plate; 47. T-shaped retaining strip; 48. T-shaped retaining groove; 5. Pressing assembly; 51. Connecting support rod; 52. Connecting support plate; 53. Pressing roller; 6. Rewinding roller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figure 1-8 This utility model provides a technical solution:

[0029] A high-speed printing thermal material winding tension adjustment mechanism includes an unwinding roller 1 and a tension adjustment component 2. An antistatic component 3 is located on the side of the tension adjustment component 2 away from the unwinding roller 1. A dust removal component 4 is located on the side of the antistatic component 3 near the tension adjustment component 2. A pressing component 5 is located on the antistatic component 3. A winding roller 6 is located on the side of the antistatic component 3 away from the tension adjustment component 2. The antistatic component 3 includes a lower housing 31 and an upper housing 32. A feed inlet 33 is opened on the side of the lower housing 31 and the upper housing 32 near the tension adjustment component 2. An ionizer 34 is installed inside both the lower housing 31 and the upper housing 32. A discharge outlet 35 is opened on the side of the lower housing 31 and the upper housing 32 away from the tension adjustment component 2. The dust removal component 4 includes a dust removal scraper 41, which is located at the feed inlet 33 of the lower housing 31 and the upper housing 32. A dust collection box 45 with a top opening is located at the bottom of the side wall of the lower housing 31 near the feed inlet 33.

[0030] As a further implementation of this solution, the tension adjustment assembly 2 includes a magnetic powder brake 21 mechanically connected to one end of the unwinding roller 1 and a pair of symmetrically arranged guide rollers 22. A detection roller 23 is provided between the guide rollers 22, and the setting height of the detection roller 23 is higher than that of the guide rollers 22. Tension detectors 24 are mechanically connected to both ends of the detection roller 23. A pair of conveying rollers 25 are provided on one side of the guide rollers 22, and an AC servo motor 26 is mechanically connected to one end of the conveying roller 25. The tension detector 24 is externally connected to a tension controller, and the tension controller is electrically connected to the magnetic powder brake 21. The AC servo motor 26 is externally connected to an AC servo amplifier, and the AC servo amplifier is electrically connected to the tension controller. The tension adjustment assembly 2 can control the tension during the winding process to ensure that the heat-sensitive material maintains a suitable tension during winding.

[0031] As a further implementation of this solution, the front and rear sides of the lower housing 31 are rotatably connected to a connecting plate 37 via a rotating shaft 36. A connecting bolt 38 passes through the side of the connecting plate 37 away from the rotating shaft 36. The front and rear sides of the upper housing 32 are provided with connecting screw holes 39 that cooperate with the connecting bolts 38. This arrangement can provide easy disassembly and assembly between the lower housing 31 and the upper housing 32, thereby facilitating the maintenance of the ion air bar 34.

[0032] As a further implementation of this solution, an installation groove 42 is provided in the feed inlet 33. An installation strip 43 is fixedly connected to the dust removal scraper 41, and the dust removal scraper 41 is installed in the installation groove 42 through the installation strip 43. Several return springs 44 are provided in the inner cavity of the installation groove 42. One end of the return spring 44 is fixedly connected to the inner end face of the installation groove 42, and the other end contacts the end of the installation strip 43. The return spring 44 can ensure the degree of contact between the dust removal scraper 41 and the heat-sensitive material through its own rebound force, so as to ensure the use effect of the dust removal scraper 41.

[0033] As a further implementation of this solution, the cross-section of the dust removal scraper 41 is a right trapezoid, the tip of the right trapezoid is rounded, and the hypotenuse of the right trapezoid is close to the tension adjustment component 2. This arrangement can guide the dust after the dust removal scraper 41 scrapes off the dust, so that the dust can smoothly enter the dust collection box 45.

[0034] As a further implementation of this solution, dust baffles 46 are symmetrically and fixedly connected to both ends of the top of the dust collection box 45, and a T-shaped clip 47 is fixedly connected to one side of the dust collection box 45. A T-shaped slot 48 that cooperates with the T-shaped clip 47 is opened on one side wall of the lower box 31. The dust baffles 46 can provide a certain enclosure effect for the dust collection box 45, making it difficult for dust to spread from the front and rear ends of the dust collection box 45, thereby improving the collection effect of the dust collection box 45. The T-shaped clip 47 and the T-shaped slot 48 can facilitate the disassembly and assembly of the dust collection box 45, making it convenient for subsequent dust cleaning.

[0035] As a further implementation of this solution, the pressing assembly 5 includes a connecting support rod 51 fixedly connected to the top of the upper housing 32. A connecting support plate 52 is symmetrically provided at the end of the connecting support rod 51 away from the upper housing 32. A pressing roller 53 is rotatably connected between the connecting support plates 52. The setting height of the pressing roller 53 is lower than the setting height of the winding roller 6. The pressing roller 53 can provide pressing force after the heat-sensitive material has been dusted and destaticated, so that the heat-sensitive material is tightly wound on the winding roller 6 during winding, thereby improving the winding density and quality, and making the final product more neat and compact.

[0036] Workflow: First, all electrical appliances are powered on and connected to an external controller. The servo motor at point A starts, driving the conveyor roller 25 to rotate. The thermal material unfolds from the unwinding roller 1 and passes through the guide roller 22 and the detection roller 23. The tension is monitored in real time by the tension detector 24. The tension controller compares the detected tension signal with a preset value and sends a control signal to the AC servo motor 26 through the AC servo amplifier. The operation of the AC servo motor 26 is adjusted to change the resistance of the magnetic powder brake 21, thereby controlling the speed of the unwinding shaft and the tension of the thermal material. The entire system achieves precise adjustment of the tension of the thermal material through closed-loop control. After the thermal material is automatically tensioned and conveyed by the tension adjustment component 2, it will pass through... The material enters the lower housing 31 and upper housing 32 through the feed inlet 33 of the static eliminator 3. Upon entering the feed inlet 33, it first passes through the dust removal scraper 41 in the dust removal assembly 4. The dust removal scraper 41 scrapes away the dust electrostatically adsorbed on the surface of the heat-sensitive material. The scraped dust falls into the dust collection box 45 through the inclined side of the dust removal scraper 41 and the guide of the dust baffle 46. During cleaning, simply pull out the dust collection box 45 and remove the T-shaped clip 47 from the T-shaped clip slot 48. The installation is similar; the dust removal scraper 41 is installed in the mounting slot 42 through the mounting strip 43. The return spring 44 can ensure the contact degree between the dust removal scraper 41 and the heat-sensitive material through its own rebound force, thereby ensuring the effectiveness of the dust removal scraper 41. After being cleaned by the dust removal component 4, the material enters the lower chamber 31 and upper chamber 32. Along the way, it passes through the ionization air bar 34. The ionization air bar 34 ionizes the air using a high-voltage electric field, generating positive and negative ions. The airflow then blows these ions onto the surface of the heat-sensitive material, neutralizing the static charge on the surface. This quickly and non-contactly eliminates static electricity, preventing the heat-sensitive material from developing tiny wrinkles or unevenness due to static electricity, thus preventing air from entering and avoiding the phenomenon of the outer layer material wrinkling the inner layer material after winding. This improves the winding quality of the heat-sensitive material. The lower chamber 31 and upper chamber 32 have easy disassembly and assembly capabilities, facilitating maintenance of the ionization air bar 34. When installing the lower chamber 31 and upper chamber 32, first connect the upper chamber... 32 is placed on top of the lower housing 31 with its corners aligned. Then, the connecting plate 37 is rotated to the outside of the upper housing 32 via the rotating shaft 36, and the hole of the connecting bolt 38 is aligned with the connecting screw hole 39. Finally, the connecting bolt 38 is screwed into the connecting screw hole 39. The same applies to disassembly. The heat-sensitive material is then discharged from the lower housing 31 and the upper housing 32 through the discharge port 35, and then passes through the pressing assembly 5. The connecting support rod 51 and the connecting support plate 52 can support the pressing roller 53. The pressing roller 53 can provide pressing force after the heat-sensitive material has been dusted and destaticated, so that the heat-sensitive material is tightly wound on the winding roller 6 during winding, thereby improving the winding density and quality, and making the final product more neat and compact.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed printing thermal material winding tension adjustment mechanism, comprising an unwinding roller (1) and a tension adjustment assembly (2), characterized in that: The tension adjustment component (2) is provided with an antistatic component (3) on the side away from the unwinding roller (1), and a dust removal component (4) is provided on the side of the antistatic component (3) close to the tension adjustment component (2). A pressing component (5) is provided on the antistatic component (3), and a winding roller (6) is provided on the side of the antistatic component (3) away from the tension adjustment component (2). The static eliminator (3) includes a lower housing (31) and an upper housing (32). The lower housing (31) and the upper housing (32) have inlets (33) on the side near the tension adjustment component (2). Ionizing air bars (34) are installed inside the lower housing (31) and the upper housing (32). The lower housing (31) and the upper housing (32) have outlets (35) on the side away from the tension adjustment component (2). The dust removal assembly (4) includes a dust removal scraper (41), which is located at the feed inlet (33) of the lower box (31) and the upper box (32). The bottom of the side wall of the lower box (31) near the feed inlet (33) is provided with a dust collection box (45) with a top opening.

2. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: The tension adjustment assembly (2) includes a magnetic powder brake (21) mechanically connected to one end of the unwinding roller (1) and a pair of guide rollers (22) symmetrically arranged. A detection roller (23) is provided between the guide rollers (22). The setting height of the detection roller (23) is higher than that of the guide rollers (22). Tension detectors (24) are mechanically connected to both ends of the detection roller (23). A pair of conveying rollers (25) are provided on one side of the guide rollers (22). An AC servo motor (26) is mechanically connected to one end of the conveying rollers (25).

3. The high-speed printing thermal material winding tension adjustment mechanism according to claim 2, characterized in that: The tension detector (24) is connected to an external tension controller, which is electrically connected to the magnetic powder brake (21). The AC servo motor (26) is connected to an external AC servo amplifier, which is electrically connected to the tension controller.

4. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: The front and rear sides of the lower housing (31) are rotatably connected to a connecting plate (37) via a rotating shaft (36). A connecting bolt (38) passes through the side of the connecting plate (37) away from the rotating shaft (36). The front and rear sides of the upper housing (32) are provided with connecting screw holes (39) that cooperate with the connecting bolts (38).

5. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: An installation groove (42) is provided in the feed inlet (33). An installation strip (43) is fixedly connected to the dust removal scraper (41), and the dust removal scraper (41) is installed in the installation groove (42) through the installation strip (43). The inner cavity of the installation groove (42) is provided with several return springs (44). One end of the return spring (44) is fixedly connected to the inner end face of the installation groove (42), and the other end is in contact with the end of the installation strip (43).

6. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: The cross-section of the dust removal scraper (41) is a right trapezoid, the tip of the right trapezoid is rounded, and the hypotenuse of the right trapezoid is close to the tension adjustment component (2).

7. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: The top two ends of the dust collection box (45) are symmetrically connected to dust baffles (46), and a T-shaped clip (47) is fixedly connected to one side of the dust collection box (45). A T-shaped slot (48) that cooperates with the T-shaped clip (47) is opened on one side wall of the lower box (31).

8. The high-speed printing thermal material winding tension adjustment mechanism according to claim 1, characterized in that: The pressing assembly (5) includes a connecting rod (51) fixedly connected to the top of the upper box (32). The connecting rod (51) is symmetrically provided with connecting plates (52) at one end away from the upper box (32). A pressing roller (53) is rotatably connected between the connecting plates (52). The setting height of the pressing roller (53) is lower than the setting height of the winding roller (6).

Images