Automatic labeling machine

Abstract

The utility model discloses an automatic labeling machine, which relates to the field of labeling machines and comprises a conveying belt for conveying packaging bottles, a driving roller and a direct pushing component are arranged on two sides of the conveying belt in an aligned manner, the driving roller is driven by a motor to rotate, the direct pushing component is connected with a carrying seat, two swing arms are symmetrically and rotatably mounted on the surface of the carrying seat, and a spring is connected between the swing arms. The end portions of the swing arms are rotationally provided with positioning rollers, the side edge of the carrying base is provided with a pressing switch, the pressing switch is connected with a motor and a label tape transmission device through a controller, and the positioning rollers abut against packaging bottles to enable the swing arms to expand to touch the pressing switch. When the positioning roller abuts against the packaging bottle and expands, the swing arm rotates in an expanding mode, when the packaging bottle is clamped stably, the swing arm touches the pressing switch, at the moment, rotation driving of the packaging bottle and label tape transmission are started, the label outlet time is accurate, and it is ensured that the label tape is accurately attached to the surface of the packaging bottle.

Description

Technical Field

[0001] The utility model relates to the field of labeling machines, in particular to an automatic labeling machine. Background Art

[0002] The automatic mode has been realized for labeling cylindrical packaging bottles by using a labeling machine. The conveyor belt linearly conveys the packaging bottles one by one through the labeling station. Positioning rollers for positioning and driving the rotation of the packaging bottles are arranged and installed on both sides of the labeling station. A label tape is conducted to the edge of the positioning roller by a peeling plate with a tip angle less than 30°. The position of the packaging bottle is sensed by an electro-optical sensor, and the electro-optical sensor feeds back information to the controller. The controller starts the synchronous operation of the positioning roller and the label tape conducting component, peels the label from the tip of the peeling plate, and pastes it on the surface of the packaging bottle.

[0003] The labeling machine is prone to the phenomenon of early label output or late label output. The problem lies in that the positioning of the packaging bottle and the label conveying action are both monitored by the electro-optical sensor. When the installation position of the electro-optical sensor deviates or the actions of positioning the packaging bottle and starting the label output action are not coordinated, the phenomenon of inaccurate label output will occur. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic labeling machine, which is used to solve the problem of inaccurate label output caused by inaccurate installation of the main electro-optical sensor in the traditional labeling machine.

[0005] In order to solve the problems existing in the prior art, the technical solution of the utility model is as follows:

[0006] An automatic labeling machine, including a conveyor belt for conducting packaging bottles. Driving rollers and direct pushing components are arranged in alignment on both sides of the conveyor belt. The driving rollers are driven to rotate by a motor. The direct pushing component is connected with a carrier. Two swing arms are symmetrically and rotatably installed on the surface of the carrier. A spring is connected between the swing arms. Positioning rollers are rotatably installed at the ends of the swing arms. A pressing switch is arranged on the side of the carrier. The pressing switch is connected to the motor and the label tape conducting device through a controller. The positioning rollers abut against the packaging bottle to expand the swing arms and touch the pressing switch.

[0007] Preferably, the direct pushing component includes a mounting plate. A cylinder is installed on the surface of the mounting plate. A guide rod is fixed on the carrier. The guide rod slidably penetrates through the mounting plate. The cylinder is used to drive the carrier to approach or move away from the driving roller.

[0008] Preferably, an electro-optical sensor is arranged on the side of the conveyor belt. The electro-optical sensor is connected to the cylinder through a controller.

[0009] Preferably, the carrier is in a U-shaped shape, and the swing arms rotate in the U-shaped groove of the carrier.

[0010] Preferably, limiting grooves are symmetrically formed on the surface of the carrier. Limiting columns are fixed on the surface of the swing arms. When the swing arms rotate, the limiting columns move along the limiting grooves.

[0011] Preferably, a screw sleeve is threadedly connected to the surface of the limit post, and the screw sleeve is in touch with the touch of the push switch.

[0012] Preferably, push switches are installed on both sides of the carrier base, and when both push switches are in a touched state, an electrical signal is transmitted to the controller.

[0013] Compared with the related art, the utility model has the following beneficial effects:

[0014] The utility model uses two elastically opened and closed positioning rollers to cooperate with the driving roller to position and clamp the packaging bottle. When the positioning roller touches the packaging bottle and expands, the swing arm expands and rotates. When the packaging bottle is clamped stably, the swing arm touches the push switch, and at this time, the rotation drive of the packaging bottle and the conduction of the label tape are started. The label issuing timing is accurate, ensuring that the label tape is accurately pasted on the surface of the packaging bottle. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the alignment structure of the driving roller and the positioning roller of the utility model.

[0017] Figure 3 It is a schematic diagram of the installation structure of the positioning roller of the utility model.

[0018] Reference numerals: 1, conveyor belt; 2, electric eye sensor; 3, driving roller; 4, positioning roller; 5, swing arm; 51, limit groove; 52, limit post; 53, screw sleeve; 6, carrier base; 7, cylinder; 71, guide rod; 72, mounting plate; 8, push switch. Detailed Embodiment

[0019] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments.

[0020] Such as Figures 1-3As shown in the figure, the automatic labeling machine includes a conveyor belt 1, which is used to convey packaging bottles one by one. A driving roller 3 is rotatably installed on the side of the middle part of the conveyor belt 1. The output shaft of the motor is connected to the driving roller 3 through a gear set or a belt drive. A direct push component is arranged on the symmetric side of the driving roller 3 in the middle of the conveyor belt 1. The direct push component includes a mounting plate 72. A cylinder 7 is installed on the surface of the mounting plate 72. Guide rods 71 penetrate symmetrically and slidably through the surface of the mounting plate 72. The end of the guide rod 71 is fixedly connected to a carrier 6. The telescopic end of the cylinder 7 is fixedly connected to the carrier 6. The carrier 6 is U-shaped. Two swing arms 5 are symmetrically and rotatably installed in the U-shaped groove of the carrier 6. A positioning roller 4 is rotatably installed at the end of the swing arm 5. A spring is connected between the two swing arms 5, so that the two positioning rollers 4 tend to approach each other. A pressing switch 8 is installed on the side of the carrier 6. A limiting column 52 is fixed on the surface of the swing arm 5. The limiting column 52 is aligned with the pressing switch 8. The pressing switch 8 is connected to the motor and the label tape conveying device through a controller. An electric eye sensor 2 is installed on the side of the conveyor belt 1. The electric eye sensor 2 is connected to the cylinder 7 through a controller;

[0021] The conveyor belt 1 conveys the packaging bottle towards the labeling station. The position of the packaging bottle is monitored by the electric eye sensor 2. The controller activates the cylinder 7 to extend, so that the positioning roller 4 moves towards the driving roller 3. The packaging bottle is clamped between the positioning roller 4 and the driving roller 3. The two positioning rollers 4 abut against the outer circumferential surface of the packaging bottle, causing the swing arms 5 to expand against the elastic force. The two positioning rollers 4 and the driving roller 3 form a three-point positioning and clamping of the packaging bottle. The swing arms 5 expand and rotate to touch the pressing switch 8. At this time, the label tape conveying device is activated to convey the label tape, and at the same time, the motor is activated to drive the driving roller 3 to drive the packaging bottle to rotate, and the label is pasted on the surface of the packaging bottle.

[0022] Pressing switches 8 are installed on both sides of the carrier 6. When both pressing switches 8 are in the touched state, they transmit electrical signals to the controller to ensure that the two swing arms 5 swing in place synchronously, so that the two positioning rollers 4 accurately position the packaging bottle before the labeling action is started.

[0023] Limiting grooves 51 are symmetrically formed on the surface of the carrier 6. The limiting columns 52 are inserted into the limiting grooves 51. When the swing arms 5 rotate, the limiting columns 52 move along the limiting grooves 51, making the swing of the swing arms 5 more stable.

[0024] A screw sleeve 53 is threadedly connected to the surface of the limiting column 52. The screw sleeve 53 is aligned with the pressing switch 8. When the swing arm 5 swings, the pressing switch 8 is touched through the screw sleeve 53. By replacing screw sleeves 53 with different diameters, the position of touching the pressing switch 8 is adjusted to limit and clamp packaging bottles with different diameters.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Automatic labeling machine, characterized in that, The invention comprises a conveyor belt (1) for conducting packaging bottles, wherein driving rollers (3) and direct push components are arranged on both sides of the conveyor belt (1), the driving rollers (3) are driven to rotate by a motor, the direct push components are connected to a carrier (6), two swing arms (5) are symmetrically and rotatably mounted on the surface of the carrier (6), springs are connected between the swing arms (5), and positioning rollers (4) are rotatably mounted on the ends of the swing arms (5), a pressing switch (8) is arranged on the side of the carrier (6), the pressing switch (8) is connected to the motor and the label belt conducting device through a controller, and the positioning rollers (4) contact the packaging bottle to expand the swing arms (5) and touch the pressing switch (8).

2. The automatic labeling machine according to claim 1, characterized in that: The direct push assembly comprises a mounting plate (72), a cylinder (7) is mounted on the surface of the mounting plate (72), a guide rod (71) is fixed to the carrier (6), the guide rod (71) slides through the mounting plate (72), and the cylinder (7) is used to drive the carrier (6) to approach or move away from the driving roller (3).

3. The automatic labeling machine according to claim 2, characterized in that: An electric eye sensor (2) is arranged on the side of the conveyor belt (1), and the electric eye sensor (2) is connected to the cylinder (7) via a controller.

4. The automatic labeling machine according to claim 1, characterized in that: The carrier (6) is U-shaped, and the swing arm (5) rotates in the U-shaped groove of the carrier (6).

5. The automatic labeling machine according to claim 4, characterized in that: The surface of the carrier (6) is symmetrically provided with limiting grooves (51), and the surface of the swing arm (5) is fixed with limiting columns (52). When the swing arm (5) rotates, the limiting columns (52) move along the limiting grooves (51).

6. The automatic labeling machine according to claim 5, characterized in that: A threaded sleeve (53) is threadedly connected to the surface of the limiting column (52), and the threaded sleeve (53) is in touch contact with the pressing switch (8).

7. The automatic labeling machine according to claim 1, characterized in that: Push switches (8) are installed on both sides of the carrier (6), and both push switches (8) transmit electrical signals to the controller when they are touched.

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