Anti-winding device for label printing machine

Abstract

The utility model relates to the technical field of label printing, in particular to an anti-winding device for a label printing machine, which comprises a machine base, a winding drum for winding residual paper and a separating device for separating the residual paper from release paper are arranged on the machine base, and an anti-winding mechanism is arranged on the machine base. The anti-winding mechanism is positioned between the winding drum and the separating device; the anti-winding mechanism comprises a fixing plate, one end of the fixing plate is fixedly connected to the machine base, a supporting plate is fixedly connected to the fixing plate, a double-shaft motor is fixedly installed on the supporting plate, and the two output ends of the double-shaft motor are both in driving connection with opening devices. According to the anti-winding device for the label printing machine, by arranging the opening device, the two sides of residual paper can be automatically opened towards the two sides in the residual paper winding process, so that the bonded parts of the residual paper are automatically separated, the residual paper is prevented from being continuously wound and knotted, and the subsequent residual paper and label paper separation effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of label printing, in particular to an anti-winding device for a label printing machine. Background Art

[0002] Label printing machines, also known as self-adhesive printing machines, are used to print labels and trademarks. Label printing and label equipment manufacturing incorporates the strengths of various printing and post-printing technologies, gradually forming a relatively independent system to adapt to the diverse development of label applications.

[0003] In existing label printing machines, after separating the residual paper from the release paper, it can easily become entangled due to improper operation or machine failure. This can also cause the internal grid lines of the residual paper to become tangled and knotted, affecting the subsequent separation of the residual paper from the label. To address this issue, we propose an anti-tangle device for label printing machines. Utility Model Content

[0004] The purpose of the embodiment of the present utility model is to provide an anti-winding device for a label printing machine, which solves the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An anti-winding device for a label printing machine includes a machine base, a winding drum for winding residual paper, and a separation device for separating the residual paper from release paper, wherein an anti-winding mechanism is provided on the machine base and is located between the winding drum and the separation device;

[0007] The anti-winding mechanism includes a fixed plate with one end fixedly connected to the machine base, a support plate fixedly connected to the fixed plate, a dual-axis motor fixedly installed on the support plate, and a support device drivingly connected to both output ends of the dual-axis motor.

[0008] Preferably, the spreading device includes a mounting plate arranged on one side of the support plate, and two transmission shafts are rotatably connected to the inner wall of the mounting plate, the two transmission shafts are connected by a belt, and one end of the two transmission shafts is fixedly connected to a turntable;

[0009] The expansion device also includes a connecting plate, the two ends of which are rotatably connected to the two turntables via connecting shafts, and the line between the axis centers of the two connecting shafts is parallel and equal to the line between the axis centers of the two transmission shafts;

[0010] Two shifting rods are fixedly connected to the connecting plate.

[0011] Preferably, a transmission bevel gear is fixedly connected to one of the two transmission shafts of the spreading device, and a driving bevel gear is meshed with the surface of the transmission bevel gear;

[0012] The driving bevel gears in the two spreading devices are respectively connected to the two output ends of the double-shaft motor in a driving manner.

[0013] Preferably, sleeves are fixedly connected to both output ends of the dual-axis motor, a movable shaft is splined on the inner wall of the sleeve, and one end of the movable shaft is fixedly connected to the axis of the driving bevel gear.

[0014] Preferably, it further comprises a support plate with one end fixedly connected to the mounting plate, and the movable shaft is rotatably mounted on the inner wall of the support plate via a bearing.

[0015] Preferably, it also includes a boss fixedly connected to the support plate, and screw rods are fixedly connected on both sides of the boss, and the two screw rods respectively pass through the two mounting plates, and the surface of the screw rod is threadedly connected to two limit nuts, and the two limit nuts are respectively in contact with the two side walls of the mounting plate.

[0016] Preferably, it further comprises two guide rails fixedly connected to the support plate, and the two guide rails are slidingly connected to the two mounting plates respectively.

[0017] By means of the above technical solution, the utility model provides an anti-winding device for a label printing machine. It has at least the following beneficial effects: The anti-winding device for a label printing machine, by providing a spreading device, can automatically spread the two sides of the residual paper apart during the rewinding process, automatically separating the stuck portions of the residual paper, thereby preventing the residual paper from further tangling and knotting, and ensuring the subsequent separation of the residual paper from the label paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of a fixing plate and a supporting plate in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the anti-winding mechanism in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the propping device in an embodiment of the present utility model;

[0023] Figure 5 This is a cross-sectional view of the mounting plate in the embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the bottom of the turntable in an embodiment of the present utility model.

[0025] In the figure: 1. Machine base; 2. Winding drum; 3. Separation device; 4. Residual paper; 5. Release paper; 6. Anti-winding mechanism; 61. Fixed plate; 62. Support plate; 63. Dual-axis motor; 64. Spreading device; 641. Mounting plate; 642. Transmission shaft; 643. Turntable; 644. Connecting plate; 645. Push rod; 646. Transmission bevel gear; 647. Drive bevel gear; 65. Sleeve; 66. Movable shaft; 67. Support plate; 68. Boss; 69. Screw; 610. Limit nut; 611. Guide rail. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-6 , a technical solution provided by the utility model:

[0028] An anti-winding device for a label printing machine includes a machine base 1, equipped with a reel 2 for rewinding residual paper 4, and a separation device 3 for separating the residual paper 4 from release paper 5. After printing, the labels are discharged through the separation device 3. The printed labels, along with the release paper 5, enter the subsequent cutting equipment, and the residual paper 4 is collected by the reel 2. During this process, the residual paper 4 can easily stick together due to improper operation or machine failure, and the internal grid lines of the residual paper 4 can become tangled, affecting the subsequent separation of the residual paper 4 from the labels.

[0029] To this end, the machine base 1 is provided with an anti-winding mechanism 6, which is located between the winding drum 2 and the separating device 3 and is used to separate the residual paper 4 that is close to and adheres to each other. The number of the anti-winding mechanism 6 is two to improve the anti-winding effect.

[0030] Specifically, the anti-entanglement mechanism 6 includes a fixed plate 61 with one end fixedly connected to the machine base 1. A support plate 62 is fixedly connected to the fixed plate 61. A dual-axis motor 63 is fixedly mounted on the support plate 62. The two output ends of the dual-axis motor 63 are both driven by a spreading device 64. The two spreading devices 64 are symmetrically arranged to spread the two sides of the paper residue 4 to prevent the paper residue 4 from becoming entangled.

[0031] Combine Figure 4-Figure 6As shown, the expansion device 64 includes two guide rails 611 fixedly connected to the support plate 62. Two mounting plates 641 are slidably connected to the surfaces of the two guide rails 611. Two transmission shafts 642 are rotatably connected to the inner wall of each mounting plate 641. One end of each transmission shaft 642 is fixedly connected to a rotating disk 643. Pulleys are fixedly mounted on each transmission shaft 642. The two pulleys are connected by a belt drive, which causes the two rotating disks 643 to rotate synchronously. Furthermore, the spreading device 64 also includes a connecting plate 644, the two ends of which are rotatably connected to the two turntables 643 through connecting shafts respectively. The connecting line between the axes of the two connecting shafts is parallel and equal to the connection between the axes of the two transmission shafts 642. Two levers 645 are fixedly connected to the connecting plate 644. When the two turntables 643 rotate, the two levers 645 will be driven to continuously move to both sides through the connecting plate 644. When moving, the two levers 645 will respectively enter the two grids of the residual paper 4, and then move the two vertical sides of the residual paper 4 to both sides.

[0032] In this embodiment, a bevel transmission gear 646 is fixedly connected to one of the two transmission shafts 642 of the spreading device 64. A bevel drive gear 647 meshes with the surface of the bevel transmission gear 646. Furthermore, the bevel drive gears 647 in the two spreading devices 64 are drivingly connected to the two output ends of the dual-axis motor 63. The two output ends of the dual-axis motor 63 rotate in the same direction, driving the two bevel drive gears 647 to rotate in the same direction. The two bevel drive gears 647 are symmetrically arranged, thus driving the two bevel transmission gears 646 to rotate in opposite directions, causing the two sets of levers 645 to pull the two sides of the residual paper 4 outward, respectively, to keep the residual paper 4 in the open state.

[0033] To accommodate label paper of varying sizes, sleeves 65 are fixedly connected to both output ends of the dual-axis motor 63. A movable shaft 66 is splined to the inner wall of the sleeve 65, allowing the sleeve 65 to synchronously drive the movable shaft 66 to rotate. The movable shaft 66 can move along the sleeve 65's axial direction, thereby adjusting the distance between the movable shaft 66 and the dual-axis motor 63. One end of the movable shaft 66 is fixedly connected to the axis of a driving bevel gear 647. This allows the sleeve 65 to rotate, driving the driving bevel gear 647 via the movable shaft 66, providing power for the rotation of the expansion device 64.

[0034] In addition, the anti-winding device for the label printing machine also includes a support plate 67 with one end fixedly connected to the mounting plate 641, and the movable shaft 66 is rotatably mounted on the inner wall of the support plate 67 through a bearing. By setting the support plate 67, support can be provided for the movable shaft 66, and at the same time, the movable shaft 66 is restricted so that the movable shaft 66 can move with the movement of the mounting plate 641.

[0035] See also Figure 4The anti-winding device for a label printer also includes a boss 68 fixedly connected to the support plate 62. A screw 69 is fixedly connected to each side of the boss 68. The two screws 69 extend through the two mounting plates 641, with a gap between them to prevent direct contact and friction between them that could affect the rotation of the screw 69. Two limit nuts 610 are threadedly connected to the surface of the screw 69, which contact the side walls of the mounting plate 641. By rotating the limit nuts 610, their position on the screw 69, and thus the position of the mounting plate 641, can be adjusted, allowing the expansion device 64 to accommodate label paper of different sizes.

[0036] When the anti-winding device for a label printing machine of the present invention is in use, the printed label paper is separated by the separating device 3, so that the residual paper 4 is peeled off from the release paper 5. One end of the peeled residual paper 4 is fixed to the winding drum 2 and is wound up as the winding drum 2 rotates. During this process, the dual-axis motor 63 is started, and the two output ends of the dual-axis motor 63 rotate in the same direction, simultaneously driving the two sleeves 65 to rotate. The sleeves 65 drive the driving bevel gear 647 to rotate via the movable shaft 66. The two symmetrically arranged driving bevel gears 647 drive the two transmission bevel gears 646 to rotate in opposite directions, thereby causing the two transmission shafts 642 to rotate in opposite directions. The transmission shaft 642 drives another transmission shaft 642 to rotate through a belt drive, thereby causing the two turntables 643 to rotate synchronously. When the two turntables 643 rotate, the two levers 645 will be driven to continuously move to both sides through the connecting plate 644. When moving, the two levers 645 will respectively enter the two grids of the residual paper 4, and then pull the two sides of the residual paper 4 outward, so that the residual paper 4 remains in an open state.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-winding device for a label printing machine, comprising a machine base (1), wherein the machine base (1) is provided with a reel (2) for rewinding residual paper (4), and a separation device (3) for separating the residual paper (4) from a release paper (5), characterized in that: The machine base (1) is provided with an anti-winding mechanism (6), and the anti-winding mechanism (6) is located between the winding drum (2) and the separating device (3); The anti-winding mechanism (6) comprises a fixing plate (61) with one end fixedly connected to the machine base (1); a support plate (62) is fixedly connected to the fixing plate (61); a dual-axis motor (63) is fixedly mounted on the support plate (62); and both output ends of the dual-axis motor (63) are driven and connected to a spreading device (64).

2. The anti-winding device for a label printing machine according to claim 1, characterized in that: The spreading device (64) comprises a mounting plate (641) arranged on one side of the support plate (62); two transmission shafts (642) are rotatably connected to the inner wall of the mounting plate (641); the two transmission shafts (642) are connected by a belt; one end of each of the two transmission shafts (642) is fixedly connected to a turntable (643); The spreading device (64) further includes a connecting plate (644), both ends of which are rotatably connected to the two rotating disks (643) via connecting shafts, and a line connecting the axis centers of the two connecting shafts is parallel and equal to the line connecting the axis centers of the two transmission shafts (642); Two shifting rods (645) are fixedly connected to the connecting plate (644).

3. The anti-winding device for a label printing machine according to claim 2, characterized in that: A transmission bevel gear (646) is fixedly connected to one of the two transmission shafts (642) of the expansion device (64), and a driving bevel gear (647) is meshed on the surface of the transmission bevel gear (646); The driving bevel gears (647) in the two spreading devices (64) are respectively connected to the two output ends of the dual-axis motor (63).

4. The anti-winding device for a label printing machine according to claim 3, characterized in that: Both output ends of the dual-axis motor (63) are fixedly connected to a sleeve (65), the inner wall of the sleeve (65) is spline-connected to a movable shaft (66), and one end of the movable shaft (66) is fixedly connected to the axis of the driving bevel gear (647).

5. The anti-winding device for a label printing machine according to claim 4, characterized in that: It also includes a support plate (67) with one end fixedly connected to the mounting plate (641), and the movable shaft (66) is rotatably mounted on the inner wall of the support plate (67) through a bearing.

6. The anti-winding device for a label printing machine according to claim 2, characterized in that: The utility model further comprises a boss (68) fixedly connected to the support plate (62), screw rods (69) are fixedly connected to both sides of the boss (68), the two screw rods (69) respectively pass through the two mounting plates (641), the surface of the screw rod (69) is threadedly connected to two limit nuts (610), and the two limit nuts (610) respectively contact the two side walls of the mounting plate (641).

7. The anti-winding device for a label printing machine according to claim 2, characterized in that: It also includes two guide rails (611) fixedly connected to the support plate (62), and the two guide rails (611) are respectively slidably connected to the two mounting plates (641).

Images