Label printing stock tensioning mechanism

Abstract

The utility model discloses a label printing material feeding tensioning mechanism belongs to label printing field, including support frame, is equipped with two slide holes on support frame, two elastic guide pieces are respectively arranged in support frame one side and can penetrate opposite slide hole, and two elastic guide pieces are symmetrically arranged up and down, two elastic guide pieces are used for adjusting the tension of label roll in passing, linkage, setting in support frame other side and with two elastic guide piece connection, is used for making two elastic guide piece between linkage. The utility model discloses a label printing material feeding tensioning mechanism, and the synchronous linkage adjustment of two elastic guide pieces is realized through linkage, guarantees the uniformity of label tension, avoids the problem of breakage and flying roll caused by too large or too small local tension of label, and the design of counterweight spare can flexibly adjust the tension according to label material quality, thickness, improves the adaptability of mechanism, and the cooperation of slide rail and support seat enhances the stability of component movement, guarantees the accuracy of tension adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of label printing, specifically relating to a label printing material feeding and tensioning mechanism. Background Technology

[0002] In the label printing production process, the control of the label roll feeding tension is a key link to ensure printing quality. Traditional label printing feeding tensioning mechanisms have problems such as inaccurate tension adjustment and poor linkage.

[0003] On the one hand, the tensioning components of most mechanisms work independently and cannot achieve synchronous linkage adjustment. When the label tension changes, it is difficult to adjust the tension quickly and evenly, which can easily lead to label breakage or fly-up due to insufficient tension, seriously affecting printing efficiency and product quality. On the other hand, the tension adjustment method of traditional mechanisms is singular and it is difficult to flexibly adjust the tension according to labels of different materials and thicknesses, resulting in poor adaptability. To solve the above problems, a label printing material feeding tensioning mechanism is proposed. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a label printing feeding tensioning mechanism, which aims to solve the problems of inaccurate tension adjustment, poor linkage and low adaptability of traditional mechanisms, and achieve the effect of precise linkage tension adjustment and flexible tension force adjustment, thereby improving the quality and production efficiency of label printing.

[0005] To achieve the above objectives, this utility model provides a label printing feeding tensioning mechanism, including a support frame with two sliding holes. Two elastic guides are respectively set on one side of the support frame and can pass through opposite sliding holes. The two elastic guides are arranged symmetrically from top to bottom. Two flexible guides are used to adjust the tension of the label roll as it passes through; A linkage component is located on the other side of the support frame and connected to two elastic guide components; it is used to enable linkage between the two elastic guide components. The counterweight is mounted on the lower elastic guide; the counterweight is used to adjust the tension generated by the two elastic guides as needed.

[0006] Furthermore, the elastic guide includes a mounting bracket disposed on one side of the support frame; a slide rod disposed inside the mounting bracket; a slider slidably sleeved on the outer wall of the slide rod, the slider being slidably passing through a slide hole; a guide wheel rotatably disposed on one side of the slider; and a spring sleeved on the outer wall of the slide rod with its two ends connected to the mounting bracket and the slider, respectively.

[0007] Furthermore, the linkage includes a gear rotatably mounted on the other side of the support frame; and two toothed plates respectively mounted on the outer walls of the two sliders and meshing with the gear, the two toothed plates being staggered.

[0008] Furthermore, the counterweight includes a support rod disposed on the other side of the lower slider, the support rod being an L-shaped rod structure; a tray sleeved on the outer wall of the support rod; and several counterweight blocks slidably sleeved on the outer wall of the support rod and located above the tray.

[0009] Furthermore, a slide rail is provided on the outer wall of the toothed plate; a support seat mounted on the support frame is slidably sleeved on the outer wall of the slide rail.

[0010] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: The label printing feeding and tensioning mechanism of this utility model achieves synchronous linkage adjustment of two elastic guides through a linkage component, ensuring the uniformity of label tension and avoiding problems such as breakage and curling caused by excessive or insufficient local tension of the label. The design of the counterweight component allows for flexible adjustment of the tension force according to the label material and thickness, improving the adaptability of the mechanism. The cooperation between the slide rail and the support seat enhances the stability of the component movement and ensures the accuracy of tension adjustment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the other side of the structure of this utility model; Figure 3 This is a schematic diagram of the lower elastic guide component structure of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0012] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. support frame; 2. sliding hole; 3. elastic guide; 31. mounting bracket; 32. sliding rod; 33. slider; 34. guide wheel; 35. spring; 4. linkage component; 41. gear; 42. toothed plate; 5. counterweight; 51. support rod; 52. tray; 53. counterweight block; 6. slide rail; 7. support base. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-4 This utility model provides a label printing feeding tensioning mechanism, including a support frame 1, on which two sliding holes 2 are provided; Two elastic guides 3 are respectively set on one side of the support frame 1 and can pass through the opposite sliding holes 2. The two elastic guides 3 are arranged symmetrically from top to bottom. Two elastic guides 3 are used to adjust the tension of the label roll as it passes through; Linkage component 4 is located on the other side of support frame 1 and connected to two elastic guide components 3; it is used to enable linkage between the two elastic guide components 3. The counterweight 5 is set on the lower elastic guide 3; the counterweight 5 is used to adjust the tension generated by the two elastic guides 3 as needed.

[0015] Specifically, refer to Figure 3 The elastic guide 3 includes a mounting bracket 31 on one side of the support frame 1, which provides mounting support for components such as the slide rod 32 and the spring 35; the slide rod 32, which is located inside the mounting bracket 31, provides a guide track for the sliding of the slider 33; the slider 33, which is slidably sleeved on the outer wall of the slide rod 32, can slide through the sliding hole 2, drive the guide wheel 34 to move, and adjust the tension of the label; the guide wheel 34, which is rotatably located on one side of the slider 33, contacts the label roll, guides the label to move, and transmits tension force; the spring 35, which is sleeved on the outer wall of the slide rod 32 and whose two ends are respectively connected to the mounting bracket 31 and the slider 33, provides elastic restoring force for the slider 33. When the label tension changes, the slider 33 drives the guide wheel 34 to move through the contraction and expansion of the spring 35, thereby realizing the tension adjustment of the label.

[0016] Specifically, refer to Figure 2 and Figure 4 The linkage component 4 includes a gear 41 rotatably mounted on the other side of the support frame 1, serving as the core transmission component for linkage; two toothed plates 42 respectively mounted on the outer walls of the two sliders 33 and meshing with the gear 41. The two toothed plates 42 are staggered. When one slider 33 moves, the gear 41 is rotated through the toothed plate 42, which in turn drives the other toothed plate 42 and slider 33 to move in the opposite direction, realizing the synchronous linkage adjustment of the two elastic guides 3 and ensuring the uniformity of label tension.

[0017] Specifically, refer to Figure 2The counterweight 5 includes a support rod 51 located on the other side of the lower slider 33. The support rod 51 is an L-shaped rod structure that provides mounting support for the tray 52 and the counterweight 53. The tray 52, which is sleeved on the outer wall of the support rod 51, is used to support the counterweight 53. Several counterweights 53 are slidably sleeved on the outer wall of the support rod 51 and located above the tray 52. ​​By increasing or decreasing the number of counterweights 53, the weight of the entire counterweight 5 can be adjusted, thereby changing the tension of the elastic guide 3 to adapt to the tension requirements of labels of different materials and thicknesses.

[0018] Specifically, refer to Figure 4 The outer wall of the toothed plate 42 is provided with a slide rail 6; the outer wall of the slide rail 6 is slidably fitted with a support seat 7 set on the support frame 1, which provides additional guidance and support for the movement of the toothed plate 42, enhances the stability of the movement of the toothed plate 42, prevents it from deviating or shaking during the linkage process, and ensures the accuracy of the linkage adjustment.

[0019] Working principle During operation, the label roll is wound through the guide rollers 34 of the two elastic guide members 3 according to the specified winding method; at this time, the tension of the label roll will pull the two sliders 33 to slide along the slide bar 32, the sliders 33 compress the spring 35, and finally keep the two elastic guide members 3 in a constant position. When the label tension changes, if the tension increases, the spring 35 is further compressed, and the slider 33 drives the guide wheel 34 to move, so that the label roll is relaxed; if the tension decreases, the spring 35 elastically recovers, and the slider 33 drives the guide wheel 34 to move in the opposite direction, so that the label roll is tightened; during the movement of the slider 33, the two sliders 33 move in opposite directions synchronously through the toothed plate 42 and gear 41 of the linkage 4, so as to ensure the uniformity of label tension. If the tension needs to be adjusted to fit different labels, it can be adjusted through the counterweight 5: increasing the number of counterweights 53 will increase the weight of the counterweights 5, which will change the compression of the spring 35 of the lower elastic guide 3, thereby changing the tension of the entire mechanism; decreasing the number of counterweights 53 will decrease the tension; throughout the process, the slide rail 6 and the support seat 7 provide stable guidance for the movement of the toothed plate 42, ensuring the accuracy of the linkage adjustment.

[0020] 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 label printing material feeding and tensioning mechanism, characterized in that, Includes a support frame (1), on which two sliding holes (2) are provided; Two elastic guides (3) are respectively set on one side of the support frame (1) and can pass through the opposite sliding hole (2). The two elastic guides (3) are arranged symmetrically up and down. Two elastic guides (3) are used to adjust the tension of the label roll as it passes through; Linkage component (4) is located on the other side of the support frame (1) and connected to two elastic guide components (3); it is used to enable linkage between the two elastic guide components (3); The counterweight (5) is set on the lower elastic guide (3); the counterweight (5) is used to adjust the tension generated by the two elastic guides (3) as needed.

2. The label printing feeding and tensioning mechanism according to claim 1, characterized in that, The elastic guide (3) includes a mounting bracket (31) disposed on one side of the support frame (1); a slide rod (32) disposed inside the mounting bracket (31); a slider (33) slidably sleeved on the outer wall of the slide rod (32), the slider (33) being slidably passing through the slide hole (2); a guide wheel (34) rotatably disposed on one side of the slider (33); and a spring (35) sleeved on the outer wall of the slide rod (32) and connected at both ends to the mounting bracket (31) and the slider (33) respectively.

3. The label printing feeding and tensioning mechanism according to claim 2, characterized in that, The linkage (4) includes a gear (41) rotatably disposed on the other side of the support frame (1); and two toothed plates (42) respectively disposed on the outer walls of the two sliders (33) and meshing with the gear (41), the two toothed plates (42) being staggered.

4. The label printing feeding and tensioning mechanism according to claim 2, characterized in that, The counterweight (5) includes a support rod (51) disposed on the other side of the lower slider (33), the support rod (51) being an L-shaped rod structure; a tray (52) sleeved on the outer wall of the support rod (51); and several counterweight blocks (53) slidably sleeved on the outer wall of the support rod (51) and located above the tray (52).

5. The label printing feeding and tensioning mechanism according to claim 3, characterized in that, The toothed plate (42) has a slide rail (6) on its outer wall; the slide rail (6) has a support seat (7) mounted on the support frame (1) on its outer wall.

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