Positioning device for label printing

Abstract

The utility model relates to the technical field of printing auxiliary devices, in particular to a positioning device for label printing, which comprises a conveying belt and a printing machine which are connected onto a support frame, and the printing machine is connected with a front positioning component and a rear positioning component at the front end and the rear end in the conveying direction of the conveying belt. The front positioning assembly or the rear positioning assembly comprises a connecting shaft, an electric telescopic rod, a connecting plate, a moving block, a connecting rod and a positioning wheel, the electric telescopic rod, the connecting plate, the moving block, the connecting rod and the positioning wheel are arranged in pairs, the electric telescopic rod is connected to the supporting frame, and the connecting plate is connected to the end of the electric telescopic rod. The connecting shaft is rotatably connected to the connecting plate, the moving block is connected to the connecting shaft, the positioning wheel is connected to the moving block through the connecting rod, and the positioning wheel abuts against the conveying belt. The device has a wide application prospect in the technical field of printing auxiliary devices.

Description

Technical Field

[0001] The utility model relates to the technical field of printing auxiliary devices, in particular to a positioning device for label printing. Background Art

[0002] During the label printing process, the raw material label tape is transported to the printing press by a conveyor belt, and printed on the label tape by the printing press. However, the raw material label tape is easily moved when being printed on the conveyor belt, resulting in the printing press being unable to accurately print on the label tape, seriously affecting the production quality of the label. Therefore, a device is needed to solve the above problem. Utility Model Content

[0003] In order to solve the problem in the prior art that raw material label tapes are easily moved when printed on a conveyor belt, causing the printing machine to be unable to accurately print on the label tape, seriously affecting the production quality of the label, a positioning device for label printing is invented.

[0004] The technical solution of the present utility model is a positioning device for label printing, comprising a conveyor belt and a printing press connected to a support frame, wherein the printing press is connected to a front positioning assembly and a rear positioning assembly at the front and rear ends of the conveyor belt in the transmission direction, so that the labels on the conveyor belt can be positioned by the front positioning assembly and the rear positioning assembly to prevent the labels from moving during printing by the printing press, the front positioning assembly or the rear positioning assembly comprises a connecting shaft and a paired electric telescopic rod, a connecting plate, a moving block, a connecting rod and a positioning wheel, the electric telescopic rod is connected to the support frame, the connecting plate is connected to the end of the electric telescopic rod, the connecting shaft is rotatably connected to the connecting plate, the moving block is connected to the connecting shaft, the positioning wheel is connected to the moving block through the connecting rod, and the positioning wheel conflicts with the conveyor belt.

[0005] Preferably, a support bearing is interference-connected on the connecting plate, and both ends of the connecting shaft are interference-connected on the support bearing.

[0006] Preferably, a fixing plate is connected to the support frame, a driving motor is connected to the fixing plate, and one end of the connecting shaft passes through the connecting plate and is connected to an output shaft of the driving motor.

[0007] Preferably, the connecting shaft is provided with two connecting threads in opposite directions, and the two moving blocks are respectively connected to the two connecting threads by connecting threads.

[0008] Preferably, limiting grooves are provided on the cross sections on both sides of the moving block, and a pair of limiting rods are connected to the connecting plate, and the limiting rods are slidably connected in the limiting grooves.

[0009] Preferably, the connecting rod includes a connecting tube, a positioning rod and a positioning spring, one end of the connecting tube is connected to the moving block, the positioning rod is slidably connected in the connecting tube, and the positioning spring conflicts with the positioning rod in the connecting tube.

[0010] Preferably, one end of the positioning rod outside the connecting cylinder is connected to a connecting frame, and the positioning wheel is rotatably connected to the connecting frame via a rotating shaft.

[0011] The following beneficial effects can be achieved by adopting the technical solution of the utility model: (1) through the electric telescopic rod and the connecting plate, the electric telescopic rod can be used to drive the connecting plate to move up and down; (2) through the connecting shaft, the moving block, the limit rod and the driving motor, the driving motor is powered on to drive the connecting shaft to rotate, and the connecting shaft drives the two moving blocks to move towards or away from each other through two sections of connecting threads in opposite directions; (3) through the connecting rod, the connecting frame and the positioning wheel, the positioning wheel is connected to the moving block, so that it can move with the moving block, thereby adjusting the distance between the two positioning wheels connected on the same connecting shaft, and then adjusting according to label tapes of different sizes, so that the label tapes in the front and rear directions of the printing machine are firmly positioned on the conveyor belt through the positioning wheel, avoiding the movement of the label tape during printing and affecting the printing quality; the technical solution of the utility model has broad application prospects in the field of printing auxiliary device technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a side view of a positioning device for label printing according to the present invention.

[0013] Figure 2 This is a partial enlarged view of area A in the figure.

[0014] Figure 3 This is a top view of a positioning device for label printing according to the present invention.

[0015] Among them, 1. support frame, 2. conveyor belt, 3. fixed rod, 4. printing machine, 5. electric telescopic rod, 6. connecting plate, 7. connecting shaft, 8. connecting thread, 9. moving block, 10. limiting rod, 11. limiting groove, 12. fixed plate, 13. driving motor, 14. connecting cylinder, 15. positioning rod, 16. positioning spring, 17, connecting frame, 18, positioning wheel. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions of the various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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 work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0018] The embodiment of the present application discloses a positioning device for label printing. Figure 1 、 Figure 3 The printing machine 4 includes a conveyor belt 2 and a printing press 4 connected to a support frame 1. A fixing rod 3 is detachably fixed to the support frame 1 by bolts. The printing press 4 is movably connected to the fixing rod 3, allowing the printing press 4 to move on the fixing rod 3 to print labels on the conveyor belt 2. The printing press 4 is connected to the front and rear positioning assemblies at the front and rear ends of the conveyor belt 2 in the conveying direction. The front and rear positioning assemblies are used to position the labels on the conveyor belt 2, preventing the labels from shifting during printing by the printing press 4 and affecting the printing effect.

[0019] Reference Figure 1 、 Figure 3The front positioning assembly or the rear positioning assembly includes a connecting shaft 7 and a paired electric telescopic rod 5, a connecting plate 6, a moving block 9, a connecting rod, and a positioning wheel 18. The electric telescopic rod 5 is removably fixedly connected to the support frame 1 by bolts, so that one end of the electric telescopic rod 5 is connected to the support frame 1, so that the support frame 1 supports and limits the front positioning assembly and the rear positioning assembly. The connecting plate 6 is removably fixedly connected to the end of the electric telescopic rod 5 away from the support frame 1 by bolts, so that the connecting plate 6 is connected to the end of the electric telescopic rod 5 away from the support frame 1, so that when the electric telescopic rod 5 is powered on and extended, it drives the connecting plate 6 to move relative to the support frame 1.

[0020] Reference Figure 1 、 Figure 3 , the connecting shaft 7 is rotatably connected to the connecting plate 6. Specifically, the connecting plate 6 is interference-connected with a support bearing, and the two ends of the connecting shaft 7 are interference-connected with the support bearings, so that the two ends of the connecting shaft 7 are connected to the connecting plates 6 on the support frames 1 on both sides through the connecting shaft 7 bearing, so that the connecting shaft 7 can move up and down relative to the support frame 1 along with the connecting plates 6. The support frame 1 is detachably fixedly connected to a fixing plate 12 by bolts, so that the fixing plate 12 is connected to the support frame 1. The fixing plate 12 is detachably fixedly connected to a drive motor 13 by bolts, so that the drive motor 13 is connected to the fixing plate 12, and then connected to the support frame 1, so that the support frame 1 supports and limits the drive motor 13. One end of the connecting shaft 7 passes through the connecting plate 6 and is detachably fixedly connected to the output shaft of the drive motor 13 through a coupling, so that the drive motor 13 is powered on and its output shaft drives the connecting shaft 7 to rotate at the same time. The driving motor 13 is a common forward and reverse bidirectional driving motor on the market, so that the driving motor 13 can rotate clockwise and counterclockwise, thereby driving the connecting shaft 7 to rotate clockwise or counterclockwise.

[0021] Reference Figure 1 、 Figure 3 , the moving block 9 is connected to the connecting shaft 7. Specifically, the connecting shaft 7 is provided with two sections of connecting threads 8 in opposite directions. The two moving blocks 9 are respectively connected to the two sections of connecting threads 8, so that the connecting shaft 7 rotates, and the two sections of connecting threads 8 with opposite spiral directions are used to realize the movement of the two moving blocks 9 in the direction of approaching or moving away from each other. A pair of limiting rods 10 are detachably fixedly connected to the connecting plate 6 by bolts, so that the two limiting rods 10 are connected to the connecting plate 6 on both sides of the connecting shaft 7. Limiting grooves 11 are provided on the cross-sections on both sides of the moving block 9, and the limiting rods 10 are slidably connected in the limiting grooves 11, so that the moving block 9 is limited by the limiting rods 10 and the limiting grooves 11, so that the moving block 9 can only move along the length direction of the connecting shaft 7, thereby preventing the moving block 9 from rotating.

[0022] Reference Figure 1 、 Figure 3The positioning wheel 18 is connected to the moving block 9 through a connecting rod, so that the positioning wheel 18 is connected to the moving block 9, so that the moving block 9 moves and drives the positioning wheel 18 to move. The positioning wheel 18 conflicts with the conveyor belt 2, so that the positioning wheel 18 can conflict with the label tape on the conveyor belt 2, thereby limiting the label tape and preventing the label tape from shifting during printing, thereby affecting the printing quality of the label. The connecting rod includes a connecting tube 14, a positioning rod 15 and a positioning spring 16. One end of the connecting tube 14 is welded to the moving block 9 or detachably fixed together by bolts, so that the connecting head and the moving block 9 are connected together to form a whole, so that the moving block 9 moves and drives the connecting tube 14 to move at the same time. The positioning rod 15 is slidably connected in the connecting tube 14, so that the positioning rod 15 can move in the connecting tube 14, thereby adjusting the distance between the end of the local connecting tube 14 outside the connecting tube 14 and the end of the moving block 9. The positioning spring 16 is in conflict with the positioning rod 15 in the connecting tube 14, so that the positioning spring 16 provides elastic force for the positioning rod 15, so that when the positioning rod 15 is only subjected to the elastic force of the positioning spring 16, one end of the positioning rod 15 in the connecting tube 14 is away from the moving block 9. The end of the positioning rod 15 outside the connecting tube 14 is detachably fixedly connected to the connecting frame 17 by bolts, so that the connecting frame 17 and the positioning rod 15 are connected together to form a whole. The positioning wheel 18 is rotatably connected to the connecting frame 17 via a rotating shaft, so that the positioning wheel 18 and the connecting frame 17 are rotatably connected together, so that the positioning wheel 18 can rotate relative to the connecting frame 17 with the rotating shaft as the axis, and the label belt on the conveyor belt 2 can be limited by the positioning wheel 18 without affecting the label belt moving together with the conveyor belt 2.

[0023] When in use, first, adjust the distance between the two positioning wheels 18 on the front positioning assembly and the rear positioning assembly according to the width of the label tape on the conveyor belt 2, that is, turn on the drive motor 13, and the output shaft of the drive motor 13 drives the connecting shaft 7 to rotate, and the connecting shaft 7 drives the moving block 9 to move. The moving block 9 drives the two moving wheels to move closer or farther away from each other through the connecting rod, and adjust the distance between the two positioning wheels 18 so that the two positioning wheels 18 on the front positioning assembly and the rear positioning assembly both conflict with the edges on both sides of the label tape. Finally, the conveyor belt 2 continues to drive the label tape to move, and the printing machine 4 is turned on at the same time, so that the printing machine 4 prints the label tape continuously.

[0024] Unless otherwise specified, the device components involved in the above embodiments are all conventional device components, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0025] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A positioning device for label printing, comprising a conveyor belt (2) and a printing machine (4) connected to a support frame (1), characterized in that: The printing machine (4) is connected to a front positioning assembly and a rear positioning assembly at both ends in the conveying direction of the conveyor belt (2), so that the labels on the conveyor belt (2) can be positioned by the front positioning assembly and the rear positioning assembly to prevent the labels from moving during printing by the printing machine (4). The front positioning assembly or the rear positioning assembly includes a connecting shaft (7) and a paired electric telescopic rod (5), a connecting plate (6), a moving block (9), a connecting rod and a positioning wheel (18). The electric telescopic rod (5) is connected to the support frame (1), the connecting plate (6) is connected to the end of the electric telescopic rod (5), the connecting shaft (7) is rotatably connected to the connecting plate (6), the moving block (9) is connected to the connecting shaft (7), the positioning wheel (18) is connected to the moving block (9) through the connecting rod, and the positioning wheel (18) conflicts with the conveyor belt (2).

2. A positioning device for label printing according to claim 1, characterized in that: The connecting plate (6) is interference-connected with a support bearing, and both ends of the connecting shaft (7) are interference-connected with the support bearing.

3. A positioning device for label printing according to claim 1, characterized in that: The support frame (1) is connected to a fixing plate (12), the fixing plate (12) is connected to a driving motor (13), and one end of the connecting shaft (7) passes through the connecting plate (6) and is connected to an output shaft of the driving motor (13).

4. A positioning device for label printing according to claim 1, characterized in that: The connecting shaft (7) is provided with two sections of connecting threads (8) in opposite directions, and the two moving blocks (9) are connected to the two sections of connecting threads (8) respectively through the connecting threads (8).

5. A positioning device for label printing according to claim 1, characterized in that: Limiting grooves (11) are provided on the cross sections of both sides of the moving block (9), and a pair of limiting rods (10) are connected to the connecting plate (6), and the limiting rods (10) are slidably connected in the limiting grooves (11).

6. A positioning device for label printing according to claim 1, characterized in that: The connecting rod comprises a connecting tube (14), a positioning rod (15) and a positioning spring (16); one end of the connecting tube (14) is connected to the moving block (9); the positioning rod (15) is slidably connected in the connecting tube (14); and the positioning spring (16) is in conflict with the positioning rod (15) in the connecting tube (14).

7. A positioning device for label printing according to claim 6, characterized in that: One end of the positioning rod (15) outside the connecting tube (14) is connected to a connecting frame (17), and the positioning wheel (18) is rotatably connected to the connecting frame (17) via a rotating shaft.

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