Labeling device

Abstract

The utility model discloses a kind of labeling devices, including mounting seat, ball spline assembly, labeling work head and pressure detection component, the spline shaft of ball spline assembly can rotate and slide along axial direction relative to the spline sleeve, the spline sleeve is fixedly arranged on the mounting seat;The labeling work head is set in the lower end of the spline shaft;Pressure detection component includes pressure sensor, spring and connecting seat, wherein, the pressure sensor is fixed on the mounting seat, the connecting seat is attached in the upper portion of the spline shaft and is set along axial synchronous lifting with the spline shaft, the axis of the spring and the axis of the spline shaft are mutually parallel, the spring can be set between the pressure sensor and the connecting seat along axial telescopic. The force when labeling can be transmitted to spring by spline shaft and connecting seat, then be fed back to pressure sensor by spring, realize real-time detection to pressure.

Description

Technical Field

[0001] This utility model relates to the field of automatic labeling technology, specifically to a labeling device, and more particularly to a labeling device with pressure detection function. Background Technology

[0002] In the prior art, in order to attach labels from rolls of label tape to different products or to different workstations on products, a labeling device with an adsorption head is usually used. Specifically, the labeling device moves above the label, adsorbs the label and removes the label separated from the tape, then moves to the position to be labeled, and uses a motor to drive the adsorption head downward to stick the label onto the product, thus realizing the labeling process.

[0003] During the labeling process described above, the pressure exerted by the motor driving the suction head downwards needs to be controlled within a certain range. This prevents the label from failing to adhere securely to the product due to insufficient pressure, while also preventing damage to the product due to excessive pressure. Therefore, a pressure sensor is typically installed on the suction head to monitor the application pressure in real time during the process.

[0004] In some existing labeling devices, a heating module is also installed on the adsorption head. After the adsorption head adsorbs the label, the heating module heats the adhesive layer on the label before the label is applied to the product. This helps to improve the adhesion between the label and the product. However, the heating process causes the temperature of the pressure sensor to rise, which seriously affects the measurement accuracy of the pressure sensor. Therefore, it is necessary to provide an improved labeling device. Utility Model Content

[0005] The purpose of this invention is to provide a labeling device with pressure detection function.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a labeling device, the labeling device including a mounting base, a ball spline assembly, and a labeling working head for adsorbing and affixing labels to products, the ball spline assembly including a spline sleeve and a spline shaft that are mutually fitted, the spline shaft being rotatable relative to the spline sleeve and sliding axially, the spline sleeve being fixedly mounted on the mounting base; the labeling working head is located at the lower end of the spline shaft;

[0007] The labeling device further includes a pressure detection component, which includes a pressure sensor, a spring, and a connecting seat. The pressure sensor is fixed on the mounting base, and the connecting seat is attached to the upper part of the spline shaft and is arranged to move up and down synchronously with the spline shaft along the axial direction. The axis of the spring is parallel to the axis of the spline shaft, and the spring is axially telescopic between the pressure sensor and the connecting seat.

[0008] Preferably, the connector has a connecting portion, and the spring abuts axially between the connecting portion and the pressure sensor, wherein the connecting portion is located below the pressure sensor, and the spring abuts upward against the pressure sensor.

[0009] In some embodiments, a guide rod is slidably disposed on the connecting portion, the axis of the guide rod being parallel to the axis of the spline shaft, and the spring being sleeved on the guide rod.

[0010] Preferably, the labeling device further includes a rotary drive assembly for driving the spline shaft to rotate. The rotary drive assembly includes at least a drive shaft that extends in the vertical direction and is rotatable about its own axis. The drive shaft is located above the spline shaft and is axially connected to and fixed to the spline shaft.

[0011] In some embodiments, the connector has a mounting ring portion that is sleeved on the outer periphery of the drive shaft and is fixedly disposed on the drive shaft along the axial direction, so that the connector and the spline shaft are disposed in a synchronous axial direction.

[0012] In some embodiments, the rotary drive assembly further includes a motor, the output shaft of which is connected to the drive shaft via a coupling.

[0013] Preferably, the mounting base is provided with a negative pressure cavity, the spline shaft is provided with a hollow channel extending axially, the upper part of the spline shaft is inserted into the negative pressure cavity, and the negative pressure cavity and the hollow channel are interconnected.

[0014] In some embodiments, the labeling head includes a suction nozzle and a connector. The connector is coaxially and detachably connected to the lower end of the spline shaft. The suction nozzle is fixedly disposed below the connector and has an adsorption hole that communicates with the hollow channel.

[0015] Preferably, the labeling head is detachably disposed at the lower end of the spline shaft, wherein the labeling head includes a suction nozzle and a heating element for heating the suction nozzle.

[0016] In some embodiments, the nozzle includes a nozzle seat and a mouth portion extending downwardly from the nozzle seat, and the heating element is a ceramic heating element that is fixedly covered above the nozzle seat.

[0017] Due to the application of the above technical solution, this utility model has the following advantages: The labeling device provided by this utility model connects the labeling working head by setting a ball spline assembly, fixes the pressure sensor on the mounting base, and attaches a connecting seat to the end of the spline shaft away from the labeling working head. A spring is placed between the connecting seat and the pressure sensor. In this way, the force applied during labeling can be transmitted to the spring through the spline shaft and connecting seat, and then fed back to the pressure sensor through the spring, achieving real-time pressure detection. The pressure sensor is positioned far from the labeling working head, which not only avoids the impact on detection accuracy when the labeling working head encounters special working environments such as those requiring heating, but also makes the replacement of the labeling working head more convenient. Furthermore, it avoids the problem of large pressure fluctuations caused by placing the pressure sensor on the labeling working head, thus significantly improving the stability of the labeling pressure. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the labeling device of this utility model;

[0020] Figure 2 for Figure 1 A front view structural diagram of the labeling device;

[0021] Figure 3 for Figure 1 A side view of the labeling device;

[0022] Figure 4 for Figure 1 A three-dimensional structural diagram of the labeling head in a labeling device;

[0023] Figure 5 for Figure 1 A front view of the labeling device after removing the heating element from the labeling head;

[0024] Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 7 for Figure 5 A structural diagram from another perspective;

[0026] Figure 8 For along Figure 7 Schematic diagram of the cross-sectional structure along the BB direction;

[0027] In the attached diagrams above:

[0028] 1. Mounting base; 11. Vacuum inlet hole;

[0029] 2. Labeling head; 21. Nozzle; 21a. Suction hole; 211. Nozzle holder; 212. Mouth part; 22. Connector; 23. Heating element; 24. Temperature sensing wire;

[0030] 3. Pressure detection assembly; 31. Pressure sensor; 32. Connecting seat; 321. Connecting part; 322. Mounting ring; 33. Spring;

[0031] 4. Ball spline assembly; 41. Spline shaft; 411. Connecting hole; 412. Hollow channel; 42. Spline sleeve; 421. Air inlet; 43. Sealing ring;

[0032] 5. Rotary drive assembly; 51. Motor; 52. Coupling; 53. Drive shaft. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] In this document, the terms "upper" and "lower" indicate the orientation or positional relationship shown in the accompanying drawings of the labeling device in the labeling working state. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] See Figures 1 to 8 The labeling device shown is used to pick up labels and affix them to products. The labeling device is mounted on a moving device, which moves the device horizontally to change its position and vertically to perform the actions of picking up labels and affixing them to the products.

[0036] The labeling device includes a mounting base 1, a ball spline assembly 4, and a labeling head 2 for adsorbing and affixing labels to products. The ball spline assembly 4 includes a spline sleeve 42 and a spline shaft 41 that cooperate with each other. The spline shaft 41 can rotate relative to the spline sleeve 42 and slide axially. The spline sleeve 42 is fixedly mounted on the mounting base 1, and the labeling head 2 is located at the lower end of the spline shaft 41. When the spline shaft 41 rotates, it drives the labeling head 2 to rotate, thus adjusting the position of the labeling head 2. The spline shaft 41 can slide axially relative to the spline sleeve 42, allowing for a certain amount of axial floating between them to buffer the labeling force applied to the label and product during the downward movement of the entire labeling device for labeling.

[0037] The labeling device also includes a pressure detection component 3 for detecting the labeling force. The pressure detection component 3 includes a pressure sensor 31, a spring 33, and a connecting seat 32. The pressure sensor 31 is fixed to the mounting base 1. The connecting seat 32 is attached to the upper part of the spline shaft 41 and is arranged to move synchronously with the spline shaft 41 axially. The axis of the spring 33 is parallel to the axis of the spline shaft 41, and the spring 33 is axially extendable between the pressure sensor 31 and the connecting seat 32. During labeling, when the labeling head 2 presses the label downwards onto the product, the downward pressure exerted by the labeling head 2 is transmitted through the spline shaft 41 to the connecting seat 32, and then through the spring 33 to the pressure sensor 31. In other words, the force is fed back to the pressure sensor 31 through the deformation of the spring 33, thus enabling real-time detection of the labeling pressure. The pressure sensor 31 is positioned far away from the labeling head 2. This not only avoids the impact on the detection accuracy of the labeling head 2 when it encounters special working environments such as those requiring heating, but also makes it easier to replace the labeling head 2. At the same time, it avoids the problem of large pressure fluctuations caused by placing the pressure sensor on the labeling head 2, thus greatly improving the stability of the labeling pressure.

[0038] Specifically, see Figure 5 , Figure 6 As shown, the connecting seat 32 has a connecting portion 321, and a spring 33 abuts axially between the connecting portion 321 and the pressure sensor 31. The connecting portion 321 is located below the pressure sensor 31, and the spring 33 abuts upward against the pressure sensor 31. During labeling, the labeling head 2 applies downward pressure to the label and product. The labeling head 2 and the spline shaft 41 receive an upward reaction force, which acts on the spring 33 through the connecting portion 321 of the connecting seat 32, and then on the pressure sensor 31 through the compression of the spring 33, thereby realizing real-time detection of the bonding pressure.

[0039] A guide rod (not shown in the figure) is also slidably provided on the connecting part 321. Specifically, the upper part of the guide rod can be fixed on the mounting base 1, and the lower part can be slidably connected to the connecting base 32. The spring 33 is specifically a cylindrical spring. The spring 33 is sleeved on the guide rod, so as to prevent the spring 33 from deviating under compression and to enable it to stably stretch and deform along the axial direction under pressure, thereby accurately feeding the pressure back to the pressure sensor 31 and realizing accurate measurement.

[0040] Referring to the accompanying drawings, the labeling device also includes a rotary drive assembly 5 for driving the spline shaft 41 to rotate. The rotary drive assembly 5 includes at least a drive shaft 53, which extends vertically and is rotatable about its own axis. The drive shaft 53 is located above the spline shaft 41, and the drive shaft 53 and the spline shaft 41 are axially connected and fixed to each other, so that when the drive shaft 53 rotates, it drives the spline shaft 41 to rotate synchronously, thereby adjusting the position of the labeling head 2.

[0041] Specifically, the rotary drive assembly 5 also includes a motor 51, the base of which is fixed to the top of the mounting base 1. The output shaft of the motor 51 is fixedly connected to the upper part of the drive shaft 53 via a coupling 52. When the motor 51 is working, it drives the drive shaft 53 to rotate, thereby causing the spline shaft 41 and the labeling head 2 to rotate accordingly. This structure, used to connect the motor 51 and the labeling head 2, also ensures that the load on the motor 51 can easily maintain a margin without overloading, thus guaranteeing the continuity and stability of the processing.

[0042] In this embodiment, the connecting seat 32 is specifically connected to the drive shaft 53, thereby achieving attachment to the spline shaft 41 and synchronously raising and lowering with the spline shaft 41. Specifically, the connecting seat 32 has a mounting ring 322, which is sleeved on the outer periphery of the drive shaft 53. A connecting structure is provided between the mounting ring 322 and the drive shaft 53, so that the axial position of the mounting ring 322 on the drive shaft 53 is fixed, and the drive shaft 53 is rotatably mounted in the mounting ring 322 around its own axis. Thus, while both the drive shaft 53 and the spline shaft 41 can rotate, the connecting seat 32 can also move synchronously up and down during the axial movement of the drive shaft 53 and the spline shaft 41, thereby transmitting pressure to the spring 33 and feeding back to the pressure sensor 31, realizing real-time pressure detection.

[0043] In this embodiment, a negative pressure chamber is provided on the mounting base 1, and a vacuum inlet hole 11 communicating with the negative pressure chamber is provided on the mounting base 1; a hollow channel 412 extending axially is provided on the spline shaft 41, and a connecting hole 411 is provided on the upper part of the spline shaft 41, which communicates with the hollow channel 412; a spline sleeve 42 is sleeved on the upper part of the spline shaft 41, and an air inlet hole 421 is provided on the spline sleeve 42, which communicates with the connecting hole 411. The spline sleeve 42 is fitted in the negative pressure chamber, and sealing rings 43 are respectively provided on the upper and lower sides of the air inlet hole 421 and the vacuum inlet hole 11, thereby sealing the connection between the spline sleeve 42 and the negative pressure chamber. After the vacuum inlet hole 11 is connected to a negative pressure source, the negative pressure airflow communicates with the hollow channel 412 through the vacuum inlet hole 11, the negative pressure chamber, the air inlet hole 421, the connecting hole 411, and the vacuum channel 412, thereby generating a negative pressure suction force below the spline shaft 41.

[0044] The labeling head 2 includes a suction nozzle 21 and a connector 22. The connector 22 is coaxially and detachably connected to the lower end of the splined shaft 41. The suction nozzle 21 is fixedly disposed below the connector 22 and has an adsorption hole 21a that communicates with the hollow channel 412 of the splined shaft 41. When the labeling device is working, the negative pressure chamber of the mounting base 1 is connected to a negative pressure device through the vacuum inlet hole 11 to provide vacuum adsorption force. The vacuum source acts on the label through the negative pressure chamber, the hollow channel 412, and the adsorption hole 21a, thereby adsorbing and fixing the label during the labeling process and moving the label along with it. The above connection method also makes it easier to ensure the concentricity between the connecting parts during processing, so that after the parts are assembled into the labeling device, there is better concentricity from the output shaft of the motor 51 to the suction nozzle 21, which is beneficial to improving the overall labeling accuracy.

[0045] In this embodiment, the labeling head 2 is detachably disposed at the lower end of the spline shaft 41. Different labeling heads 2 with different functions can be selected according to the actual needs of the labeling work. Here, the labeling head 2 also includes a heating element 23 for heating the nozzle 21. In this way, the label adsorbed by the nozzle 21 can be heated during the labeling process, so that it can better adhere to the product when it is attached to the product.

[0046] Specifically, the nozzle 21 includes a nozzle seat 211 and a mouthpiece 212 extending downward from the nozzle seat 211. The heating element 23 is a ceramic heating plate, which is fixedly positioned above the nozzle seat 211 to uniformly heat the nozzle seat 211. The labeling head 2 also includes a temperature sensing wire 24, which is connected to a temperature measuring device to obtain the temperature on the nozzle 21 in real time for monitoring the heating status of the nozzle 21. In this embodiment, the pressure detection component 3 is positioned a considerable axial distance from the labeling head 2 with heating function. The temperature of the labeling head 2 will not affect the accuracy of the pressure sensor 31, and it also eliminates the need to rearrange the pressure detection component when replacing the labeling head 2, making replacement quicker and more convenient.

[0047] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0049] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0050] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0051] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0052] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A labeling device, characterized in that, The labeling device includes a mounting base, a ball spline assembly, and a labeling head for adsorbing and affixing labels to products. The ball spline assembly includes a spline sleeve and a spline shaft that are mutually fitted. The spline shaft is rotatable relative to the spline sleeve and can slide axially. The spline sleeve is fixedly mounted on the mounting base. The labeling head is located at the lower end of the spline shaft. The labeling device further includes a pressure detection component, which includes a pressure sensor, a spring, and a connecting seat. The pressure sensor is fixed on the mounting base, and the connecting seat is attached to the upper part of the spline shaft and is arranged to move up and down synchronously with the spline shaft along the axial direction. The axis of the spring is parallel to the axis of the spline shaft, and the spring is axially telescopic between the pressure sensor and the connecting seat.

2. The labeling device according to claim 1, characterized in that: The connector has a connecting portion, and the spring abuts axially between the connecting portion and the pressure sensor, wherein the connecting portion is located below the pressure sensor, and the spring abuts upward against the pressure sensor.

3. The labeling device according to claim 2, characterized in that: A guide rod is slidably provided on the connecting part, the axis of the guide rod is parallel to the axis of the spline shaft, and the spring is sleeved on the guide rod.

4. The labeling device according to claim 1, characterized in that: The labeling device further includes a rotary drive assembly for driving the spline shaft to rotate. The rotary drive assembly includes at least a drive shaft that extends in the vertical direction and is rotatable about its own axis. The drive shaft is located above the spline shaft and is axially connected to and fixed to the spline shaft.

5. The labeling device according to claim 4, characterized in that: The connecting seat has a mounting ring portion, which is sleeved on the outer periphery of the drive shaft. The mounting ring portion is fixedly disposed on the drive shaft along the axial direction, so that the connecting seat and the spline shaft are disposed to move synchronously along the axial direction.

6. The labeling device according to claim 4, characterized in that: The rotary drive assembly also includes a motor, the output shaft of which is connected to the drive shaft via a coupling.

7. The labeling device according to claim 1, characterized in that: The mounting base is provided with a negative pressure chamber, and the splined shaft is provided with a hollow channel that runs through the axis. The upper part of the splined shaft is inserted into the negative pressure chamber, and the negative pressure chamber and the hollow channel are interconnected.

8. The labeling device according to claim 7, characterized in that: The labeling head includes a suction nozzle and a connector. The connector is coaxially and detachably connected to the lower end of the spline shaft. The suction nozzle is fixedly disposed below the connector and has an adsorption hole that communicates with the hollow channel.

9. The labeling device according to any one of claims 1 to 8, characterized in that: The labeling head is detachably disposed at the lower end of the spline shaft, wherein the labeling head includes a suction nozzle and a heating element for heating the suction nozzle.

10. The labeling device according to claim 9, characterized in that: The nozzle includes a nozzle seat and a mouth portion extending downward from the nozzle seat. The heating element is a ceramic heating element that is fixedly covered above the nozzle seat.

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