A labelling device

Abstract

A labeling device, comprising a base plate and a unwinding mechanism, a roller assembly, a bearing seat, a winding mechanism, a suction mechanism and a workbench arranged on the base plate, the suction mechanism and the workbench are arranged on the front side of the base plate, the suction mechanism is slidably connected to the base plate, the workbench is arranged directly below the suction mechanism; the bearing seat is slidably connected to the base plate between the suction mechanism and the workbench; the base plate is provided with a rotatable turntable, a first transmission assembly and a second transmission assembly, the turntable is provided with a first cam working surface and a second cam working surface which rotate synchronously; the first cam working surface is connected with the bearing seat through the first transmission assembly to drive the bearing seat to move left and right; the second cam working surface is connected with the suction mechanism through the second transmission assembly to drive the suction mechanism to move up and down. Compared with the prior art, the device controls the movement of the bearing seat and the suction mechanism through the cam, improves the production efficiency and the labeling accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of labeling devices, and specifically relates to a labeling device. Background Technology

[0002] The labeling device provided in authorization announcement number CN214058186U includes a driving mechanism and an adsorption mechanism. The driving mechanism drives the adsorption mechanism to move, thereby adsorbing the labels on the label roll and then affixing the labels to the product. The driving mechanism includes a linear driver (such as a cylinder) and a rotary driver (such as a motor). The movement trajectory of the adsorption mechanism is controlled by the extension and retraction of the cylinder and the rotation of the motor to ensure accurate label application.

[0003] However, as the production line demands higher labeling efficiency, the cylinder's movement speed needs to be increased accordingly. But the cylinder itself is limited by the inertia of the pneumatic system, response delay, and air pressure fluctuations, making it difficult to guarantee control accuracy. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a labeling device.

[0005] To achieve the above objectives, this utility model discloses a labeling device, including a substrate and an unwinding mechanism, a roller assembly, a support seat, a winding mechanism, an adsorption mechanism, and a worktable disposed on the substrate. The unwinding mechanism is used to unwind a label roll, and the label roll passes through the roller assembly and the support seat and is wound into the winding mechanism. Both the adsorption mechanism and the worktable are located on the front side of the substrate. The adsorption mechanism is slidably connected to the substrate, and the worktable is located directly below the adsorption mechanism. The support base is slidably connected to the substrate at a position between the adsorption mechanism and the worktable; The base plate is provided with a rotatable turntable, a first transmission component and a second transmission component, and the turntable is provided with a first cam working surface and a second cam working surface that rotate synchronously. The first cam working surface is connected to the support seat through the first transmission assembly, so as to drive the support seat to move forward to below the adsorption mechanism and to move backward to avoid the adsorption mechanism; The second cam working surface is connected to the adsorption mechanism through the second transmission assembly, so as to drive the adsorption mechanism to move downward to adsorb the label on the carrier and stick the label to the product on the worktable, and to move upward to the top of the carrier.

[0006] Preferably, the first cam working surface includes a first arc surface, a first gradient surface, a first transition surface and a second gradient surface that are connected sequentially and end to end, and the radii of the first gradient surface and the second gradient surface gradually decrease in the direction towards the first transition surface. The first transmission assembly includes a first roller, a transmission structure, a first connecting member, and a spring. The first roller is fixed to the transmission structure and abuts against the working surface of the first cam. The two ends of the first connecting member are fixedly connected to the transmission structure and the bearing seat, respectively. The spring is used to ensure that the first roller always abuts against the working surface of the first cam.

[0007] Preferably, the transmission structure includes a first swing arm and a second connecting member. One end of the first swing arm is hinged to the base plate, the first roller is disposed on the first swing arm, one end of the second connecting member is slidably connected to the first swing arm, and the other end of the second connecting member is connected to the first connecting member.

[0008] Preferably, the first swing arm is provided with a sliding groove, which is arranged along the length direction of the first swing arm, and the end of the second connecting member is provided with a slider, which is slidably connected in the sliding groove.

[0009] Preferably, the two ends of the spring are fixed to the base plate and the first connector, respectively, to apply a rearward pulling force to the support.

[0010] Preferably, the second cam working surface includes a second arc surface, a third gradient surface and a reset arc surface that are connected end to end in sequence. The radius of the third gradient surface gradually increases in the direction towards the reset arc surface, and the radius of the reset arc surface decreases in the direction towards the second arc surface. The radius of the reset arc surface is smaller than the radius of the second arc surface, thereby forming a transition concave surface between the two. The second transmission assembly includes a second swing arm and a third connecting member. The second swing arm is rotatably connected to the base plate at a position between its two ends. The first end of the second swing arm is provided with a rotatable second roller, which abuts against the working surface of the second cam. The third connecting member is fixedly connected to the adsorption mechanism. The second end of the second swing arm cooperates with the third connecting member to drive the adsorption mechanism to move.

[0011] Preferably, the second transmission assembly further includes a fourth connector, the two ends of which are rotatably connected to the second swing arm and the third connector, respectively.

[0012] Preferably, the distance from the connection point of the second swing arm to the first end is less than the distance to the second end.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The first and second cam working surfaces on the turntable, in conjunction with the first and second transmission components, directly drive the movement of the carrier and the adsorption mechanism. The cam mechanism precisely controls the movement of the carrier and the adsorption mechanism, ensuring labeling accuracy while improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the labeling device in the embodiment; Figure 2 for Figure 1 A three-dimensional structural diagram of the labeling device from another perspective; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle; Figure 4 for Figure 2 A three-dimensional exploded view of the first cam and the first transmission assembly; Figure 5 for Figure 2 A three-dimensional structural diagram of the transfer tray; Figure 6 This is a three-dimensional structural diagram of the second cam and the second transmission assembly; Figure 7 A schematic diagram of the second cam and the second transmission assembly from another perspective; Figure 8 for Figure 7 A schematic diagram of the structure of the second cam in the middle; Figure 9 This is a schematic diagram of the labeling device in its initial state. Figure 10 This is a schematic diagram of the labeling device when the adsorption mechanism comes into contact with the label; Figure 11 This is a schematic diagram of the labeling device when the support seat moves to the rear of the adsorption mechanism. Figure 12 A schematic diagram of the labeling device when the adsorption mechanism applies the label to the product; Substrate 100; Base 110; Turntable 120; First cam 130; First cam working surface 131; First arc surface 1311; First gradient surface 1312; First transition surface 1313; Second gradient surface 1314; Second cam 140; Second cam working surface 141; Second arc surface 1411; Third gradient surface 1412; Reset arc surface 1413; Fourth gradient surface 14131; Third arc surface 14132; Transition concave surface 1414; Cam groove 142; First transmission assembly 150; First roller 151; First connector 152; Spring 153; First swing arm 154; Slide groove 1541; Second connector 155; Slider 1551; Second transmission assembly 160; Second swing arm 161; Second roller 1611; Third connector 162; Fourth connector 163; First mounting plate 170; Second mounting plate 180; Unwinding mechanism 200; Roller assembly 300; Roller 310; 400 bearing base; 500 winding machines; Adsorption mechanism 600; Workbench 700. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] A labeling device, see Figures 1-12 It includes a substrate 100 and an unwinding mechanism 200, a roller assembly 300, a support seat 400, a winding mechanism 500, an adsorption mechanism 600, and a worktable 700 mounted on the substrate 100.

[0017] The substrate has a base 110 at its bottom, which allows the entire device to be placed on a table or other surface. The unwinding mechanism 200 has a label roll on it and is equipped with a first drive device, such as a motor, to rotate and unwind the label roll. The roller assembly 300 includes multiple rollers 310, the position and number of which can be set as needed. The support base 400 serves as a support platform to support the label, ensuring stable contact between the label and the adsorption mechanism 600. The winding mechanism 500 winds up the base film of the label roll and is equipped with a second drive device to wind it. The label roll passes through the multiple rollers 310 of the roller assembly 300 and the support base 400 before being wound into the winding mechanism 500. The adsorption mechanism 600 uses a conventional vacuum adsorption device, and the worktable 700 serves only as a platform for placing the product to be labeled. The unwinding mechanism 200, roller assembly 300, bearing seat 400, winding mechanism 500, adsorption mechanism 600 and worktable 700 can adopt existing mechanisms and devices, and the specific mechanisms will not be described in detail.

[0018] In this embodiment, both the adsorption mechanism 600 and the worktable 700 are located on the front side of the substrate 100. The adsorption mechanism 600 is slidably connected to the substrate 100, with its adsorption surface located on its bottom surface. The worktable 700 is located directly below the adsorption mechanism 600. The support seat 400 is slidably connected to the substrate 100, and is located between the adsorption mechanism 600 and the worktable 700.

[0019] A rotatable turntable 120, a first transmission assembly 150, and a second transmission assembly 160 are provided on the substrate 100. The turntable 120 has a first cam working surface 131 and a second cam working surface 141 that can rotate synchronously. Preferably, the turntable 120 includes a first cam 130 and a second cam 140, which are fixed together and rotatably connected to the substrate 100. The first cam 130 is located on the side of the second cam 140 away from the substrate 100, and the outer side wall of the first cam 130 is the aforementioned first cam working surface 131. The second cam 140 has a cam groove 142 on the side wall near the substrate 100. The groove width of the cam groove 142 is adapted to the second roller 1611 described below, so that after the second cam 140 rotates, the second roller 1611 moves along the trajectory of the cam groove 142. The two inner side walls of the cam groove 142 are the aforementioned second cam working surfaces 141.

[0020] The first cam working surface 131 is connected to the carrier via the first transmission assembly 150, so as to drive the carrier forward to move below the adsorption mechanism 600 and backward to avoid the adsorption mechanism 600. The second cam working surface 141 is connected to the adsorption mechanism 600 via the second transmission assembly 160, so as to drive the adsorption mechanism 600 to move downward to adsorb the label on the carrier 400 and stick the label to the product on the worktable 700, and to move upward to move above the carrier.

[0021] The labeling process of the above devices can be divided into the following steps: First, in the initial state, the support 400 is located between the adsorption mechanism 600 and the worktable 700, preferably directly below the adsorption mechanism 600, with a certain distance between them (e.g., Figure 9 (As shown in the diagram). The turntable rotates, and the second cam working surface 141 drives the second transmission assembly 160 to move the adsorption mechanism 600 downwards until its adsorption surface contacts the label. The adsorption mechanism 600 then adsorbs the label (e.g., ...). Figure 10 (The state shown).

[0022] Second, the turntable 120 continues to rotate, causing the carrier 400 to move backward via the first transmission assembly 150, preventing the carrier 400 from obstructing the downward movement of the adsorption mechanism 600. As the carrier 400 moves from directly below the adsorption mechanism 600 to behind it, the winding mechanism 500 simultaneously winds it up, separating the label from the base film. During this process, the adsorption mechanism 600 maintains its original height and does not continue to move downward, avoiding interference with the carrier 400 (e.g., ...). Figure 11 As shown in the diagram, the carrier 400 continues to move backward, and the adsorption mechanism 600 continues to move downward until the label is affixed to the product on the worktable 700 (e.g., ...). Figure 12 (The state shown).

[0023] Third, the adsorption mechanism 600 moves upward and the support seat 400 moves forward. When the adsorption mechanism 600 moves upward to above the support seat 400, the support seat 400 moves exactly below the adsorption mechanism 600; this position is the initial position.

[0024] The above device, through the first cam working surface 131 and the second cam working surface 141 on the turntable 120, in conjunction with the first transmission component 150 and the second transmission component 160, directly drives the movement of the carrier 400 and the adsorption mechanism 600. The cam mechanism can precisely control the movement of the carrier 400 and the adsorption mechanism 600, ensuring labeling accuracy while improving production efficiency.

[0025] The structure of the turntable 120 and the rotating assembly corresponding to the above working method is described below.

[0026] The outer wall of the first cam working surface 131 includes a first arc surface 1311, a first gradient surface 1312, a first transition surface 1313, and a second gradient surface 1314, which are sequentially connected end to end. The cross-sectional radius of the first arc surface 1311 (the distance between a point on the arc and the center of rotation) is equal everywhere; the radii of the first gradient surface 1312 and the second gradient surface 1314 gradually decrease in the direction towards the first transition surface 1313, and preferably these two gradient surfaces are symmetrically designed; the first gradient surface 1312 is an arc surface, which can smoothly transition the position between the first gradient surface 1312 and the second gradient surface 1314. Preferably, the ends of the first gradient surface 1312 and the second gradient surface 1314 near the first transition surface 1313 are tangent to the two gradient surfaces.

[0027] The first transmission assembly 150 includes a first roller 151, a transmission structure, a first connecting member 152, and a spring 153. The transmission structure includes a first swing arm 154 and a second connecting member 155. The first swing arm 154 is located between the turntable 120 and the worktable 700, and its bottom end is hinged to the base plate 100. The first roller 151 is located on the side of the first swing arm 154 near the turntable 120 so that the first roller 151 abuts against the first cam working surface 131. The first roller 151 has a rotation function, so that it can roll smoothly on the first cam working surface 131. The second connecting member 155 is tubular, with one end slidably connected to the first swing arm 154 in the direction of the length of the first swing arm 154, and the other end of the second connecting member 155 connected to one end of the first connecting member 152. The other end of the first connecting member 152 is fixedly connected to the support 400. Spring 153 is used to keep the first roller 151 in contact with the first cam working surface 131. Specifically, its two ends are connected to the base plate 100 and the first connector 152 respectively to apply a backward pulling force to the support seat 400. The first connector 152 acts on the first rocker arm 154 through the second connector 155, so that the first roller 151 is in continuous contact with the first cam working surface 131.

[0028] In the initial position described above, the first roller 151 is located at the middle position of the first arc surface 1311. The first cam 130 rotates counterclockwise. Initially, the first arc surface 1311 of the first cam 130 engages with the first roller 151. During this process, the first cam 130 does not push the support seat 400 to move backward. When the first cam 130 rotates to engage with the first roller 151 on the first gradient surface 1312, due to the reduced radius of the first gradient surface 1312, the first connecting member 152 moves backward under the action of the spring 153, thereby driving the support seat 400 to move forward. At the same time, the second connecting member 155 and the first swing arm 154 move backward, allowing the first roller 151 to continuously press against the first gradient surface 1312. When the first roller 151 is located at the intersection of the first gradient surface 1312 and the first transition surface 1313, the radius is at its smallest, and the first roller 151 and the support seat 400 are in their final positions. When the first cam 130 rotates to engage with the first roller 151 on the first transition surface 1313, the first roller 151 remains in its final position due to its unchanged radius. The first connecting member 152 and the support seat 400 also remain in their final positions. When the first cam 130 rotates to engage with the first roller 151 on the second gradient surface 1314, the radius of the second gradient surface 1314 gradually decreases towards the first transition surface 1313 (i.e., gradually increases towards the first arc surface 1311). The second gradient surface 1314 pushes the first roller 151 forward, and the first swing arm 154 swings forward, pushing the first connecting member 152 and the peeling support member forward. When the first roller 151 is at the intersection of the second gradient surface 1314 and the first arc surface 1311, the peeling support member moves to its foremost position. The first cam 130 continues to rotate until the first roller 151 is in the middle position of the first arc surface 1311.

[0029] The first swing arm 154 is provided with a slide groove 1541, which is arranged along the length of the first swing arm 154. The end of the second connector 155 is provided with a slider 1551, which is slidably connected to the slide groove 1541.

[0030] To ensure smooth transmission between the first swing arm 154 and the second connecting member 155, the slider 1551 and the second connecting member 155 are configured to be rotatable. This allows the slider 1551 to align with the groove 1541 after the first swing arm 154 rotates. Alternatively, the second connecting member 155 and the first connecting member 152 can be connected by a rotatable connection, or they can be relatively fixed, resulting in more stable transmission.

[0031] The second cam working surface 141 is formed by the two inner sidewalls of the cam groove 142 on the second cam 140. The two inner sidewalls have identical profiles; taking one as an example, it includes a second arcuate surface 1411, a third gradient surface 1412, and a return arcuate surface 1413, which are sequentially connected end-to-end. The radius of the third arcuate surface 1411 is equal at every point on its cross-section. The radius of the third gradient surface 1412 gradually increases towards the return arcuate surface 1413, while the radius of the return arcuate surface 1413 decreases towards the second arcuate surface 1411. In this embodiment, the reset arc surface 1413 includes a fourth gradient surface 14131 connected to the third gradient surface 1412 and a third arc surface 14132 connected to the fourth gradient surface 14131 and the second arc surface 1411. The radius of the fourth gradient surface 14131 decreases in the direction toward the second arc surface 1411 until it reaches its minimum radius at the point of contact with the third arc surface 14132. The fourth gradient surface 14131 and the third arc surface 14132 are tangent to each other. A transition concave surface 1414 is provided between the third arc surface 14132 and the second arc surface 1411. The radius of the transition concave surface 1414 gradually increases in the direction from the third arc surface 14132 to the second arc surface 1411.

[0032] The second transmission assembly 160 includes a second swing arm 161, a third connector 162, and a fourth connector 163. The second swing arm 161 is an obtuse-angled rod-shaped structure, with its corner position rotatably connected to the base plate 100 and positioned above the turntable 120. The first end of the second swing arm 161 is provided with a rotatable second roller 1611, which engages with the cam groove 142 and abuts against the two inner sidewalls of the cam groove 142. The fourth connector 163 is a rod-shaped structure, with its two ends rotatably connected to the other end of the second swing arm 161 and one end of the third connector 162, respectively. The other end of the third connector 162 is fixedly connected to the adsorption mechanism 600.

[0033] In the initial position described above, the second roller 1611 is located within the transition concave surface 1414. When the second cam 140 rotates synchronously with the first cam 130, the transition concave surface 1414 lifts the second roller 1611, causing the second swing arm 161 to rotate clockwise. The second swing arm 161 drives the third connecting member 162 to move downward through the fourth connecting member 163, thereby driving the adsorption mechanism 600 to move downward, so that the adsorption surface of the adsorption mechanism 600 contacts the label. When the second cam 140 rotates to the point where the second arc surface 1411 contacts the second roller 1611, during this process, the second arc surface 1411 does not push the second roller 1611. The positions of the second roller 1611, the second swing arm 161, the third and fourth connecting members 163, and the adsorption mechanism 600 remain unchanged, allowing the support seat 400 to move to the rear side of the adsorption mechanism 600. As the carrier 400 continues to move backward to its final position (here, the final position refers to the middle position of the first roller 151 on the first transition surface 1313), the second roller 1611 engages with the third gradient surface 1412. The third gradient surface 1412 pushes the second roller 1611 upward, causing the second swing arm 161 to continue rotating clockwise. The third connector 162 continues to move downward, thereby driving the adsorption mechanism 600 downward until the label is affixed to the product on the worktable 700. When the carrier 400 moves forward to its initial position, the second cam 140 rotates until the reset arc surface 1413 engages with the second roller 1611. Due to the gradually decreasing radius, the cam groove 142 of the second cam 140 pulls the second swing arm 161 downward. The second swing arm 161 rotates counterclockwise, pulling the third connector 162 and the adsorption mechanism 600 upward until they move to their initial positions.

[0034] Wherein, the distance from the connection position of the second swing arm 161 and the substrate 100 to the second roller 1611 is less than the distance from the connection position of the second swing arm 161 and the substrate 100 to the fourth connector 163. The length of the part of the second swing arm 161 that cooperates with the second cam 140 is small and the swing amplitude is small, which can reduce the size of the second cam 140 and make the structure more compact.

[0035] In this embodiment, the turntable 120, the first transmission assembly 150, and the second transmission assembly 160 are disposed on one side of the substrate 100, while the unwinding mechanism 200, the roller assembly 300, the support seat 400, the winding mechanism 500, the adsorption mechanism 600, and the worktable 700 are disposed on the other side of the substrate 100. To enable the first connecting member 152 and the third connecting member 162 to connect to the support seat and the adsorption mechanism 600 respectively, through holes are provided on the substrate 100 at corresponding positions.

[0036] In this embodiment, a horizontally arranged first mounting plate 170 is provided on the substrate 100, and the support 400 is slidably connected to the first mounting plate 170 via a guide rail slider structure. A vertically arranged second mounting plate 180 is also provided on the substrate 100, and the support 400 is also slidably connected to the first mounting plate 170 via a guide rail slider structure.

[0037] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A labeling device, comprising a substrate and an unwinding mechanism, a roller assembly, a support seat, a winding mechanism, an adsorption mechanism, and a worktable disposed on the substrate, wherein the unwinding mechanism is used to unwind a label roll, the label roll passing through the roller assembly and the support seat and winding into the winding mechanism, characterized in that: Both the adsorption mechanism and the worktable are located on the front side of the substrate. The adsorption mechanism is slidably connected to the substrate, and the worktable is located directly below the adsorption mechanism. The support base is slidably connected to the substrate at a position between the adsorption mechanism and the worktable; The base plate is provided with a rotatable turntable, a first transmission component and a second transmission component, and the turntable is provided with a first cam working surface and a second cam working surface that rotate synchronously. The first cam working surface is connected to the support seat through the first transmission assembly, so as to drive the support seat to move forward to below the adsorption mechanism and to move backward to avoid the adsorption mechanism; The second cam working surface is connected to the adsorption mechanism through the second transmission assembly, so as to drive the adsorption mechanism to move downward to adsorb the label on the carrier and stick the label to the product on the worktable, and to move upward to the top of the carrier.

2. The labeling device according to claim 1, characterized in that: The first cam working surface includes a first arc surface, a first gradient surface, a first transition surface and a second gradient surface that are connected end to end in sequence. The radii of the first gradient surface and the second gradient surface gradually decrease in the direction towards the first transition surface. The first transmission assembly includes a first roller, a transmission structure, a first connecting member, and a spring. The first roller is fixed to the transmission structure and abuts against the working surface of the first cam. The two ends of the first connecting member are fixedly connected to the transmission structure and the bearing seat, respectively. The spring is used to ensure that the first roller always abuts against the working surface of the first cam.

3. The labeling device according to claim 2, characterized in that: The transmission structure includes a first swing arm and a second connecting member. One end of the first swing arm is hinged to the base plate, the first roller is disposed on the first swing arm, one end of the second connecting member is slidably connected to the first swing arm, and the other end of the second connecting member is connected to the first connecting member.

4. The labeling device according to claim 3, characterized in that: The first swing arm is provided with a sliding groove, which is arranged along the length direction of the first swing arm. The end of the second connecting member is provided with a slider, which is slidably connected in the sliding groove.

5. The labeling device according to claim 2, characterized in that: The two ends of the spring are fixed to the base plate and the first connector, respectively, to apply a backward pulling force to the support.

6. The labeling device according to claim 1, characterized in that: The second cam working surface includes a second arc surface, a third gradient surface and a reset arc surface that are connected end to end in sequence. The radius of the third gradient surface gradually increases in the direction towards the reset arc surface, and the radius of the reset arc surface decreases in the direction towards the second arc surface. The radius of the reset arc surface is smaller than the radius of the second arc surface, thus forming a transition concave surface between the two. The second transmission assembly includes a second swing arm and a third connecting member. The second swing arm is rotatably connected to the base plate at a position between its two ends. The first end of the second swing arm is provided with a rotatable second roller, which abuts against the working surface of the second cam. The third connecting member is fixedly connected to the adsorption mechanism. The second end of the second swing arm cooperates with the third connecting member to drive the adsorption mechanism to move.

7. The labeling device according to claim 6, characterized in that: The second transmission assembly further includes a fourth connector, the two ends of which are rotatably connected to the second swing arm and the third connector, respectively.

8. The labeling device according to claim 6, characterized in that: The distance from the connection point of the second swing arm to the first end is less than the distance to the second end.

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