An automatic refrigerator label pasting device

Abstract

The utility model relates to refrigerator production technical field, specifically disclose a refrigerator label automatic laminating equipment, mechanical arm subassembly and set up in the label pasting subassembly end of mechanical arm subassembly, the label pasting subassembly with mechanical arm subassembly is detachable connection, the label pasting subassembly includes mounting panel, the mounting panel includes by the first installation support pole, second installation support pole and third installation support pole who sets up the first installation support pole, second installation support pole and third installation support pole on the mounting panel to the end away from the mounting panel extension, the end of first installation support pole is equipped with the label suction mechanism, the label suction mechanism includes needle type air cylinder and with needle type air cylinder intercommunication's label suction plate, be equipped with a plurality of evenly distributed label suction hole on the label suction plate, refrigerator label automatic laminating equipment passes through the accurate motion control of mechanical arm subassembly, can accurate positioning refrigerator label pasting area, effectively avoid the problem that traditional manual pasting because of subjective factor leads to label pasting position deviation, skew, significantly improve label pasting precision.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator manufacturing technology, and in particular to an automatic label-applying device for refrigerators. Background Technology

[0002] In the refrigerator manufacturing process, label application is a crucial step in ensuring the compliant transmission of product information and enhancing the integrity of the product's appearance. With the home appliance industry's ever-increasing demands for product quality and consumers' growing attention to detail in product appearance, the accuracy and quality of label application have become a significant factor influencing the competitiveness of refrigerator products. Currently, label application in refrigerator production mainly relies on two methods, but both have significant technical shortcomings and cannot meet the demands of modern production for efficient and high-precision labeling.

[0003] On the one hand, traditional manual labeling methods are still relatively common in small and medium-sized production scenarios. This method requires operators to hold the labels and rely on experience to align them with the labeling area on the refrigerator surface. However, manual operation is easily affected by subjective factors, such as operator hand tremors, visual judgment deviations, and lack of concentration due to fatigue. These factors can all cause the label to be misaligned, failing to accurately match the preset labeling baseline, and thus leading to problems such as label skewness and misalignment. At the same time, uneven pressure when manually pressing the labels can leave air trapped between the label and the refrigerator surface, forming localized air bubbles. Furthermore, manual operation makes it difficult to ensure the flatness of the labels during the application process, often resulting in wrinkles and curling edges. This not only seriously damages the appearance of the refrigerator product but may also cause the labels to fall off during subsequent transportation, storage, or use, affecting the proper display of product information.

[0004] On the other hand, to improve production efficiency, some manufacturers have introduced traditional direct-apply labeling equipment. This type of equipment uses a mechanical structure to directly tap the label onto the refrigerator surface to complete the application. However, due to the lack of smooth transition and uniform pressure control during the application process, problems are also prominent. At the moment of direct tapping, localized air compression can easily occur when the label contacts the refrigerator surface, and the equipment cannot expel the air in time, resulting in a large number of air bubbles forming under the label. Furthermore, the force of direct-applying is concentrated in the center area of ​​the label, with insufficient force on the edges, easily leading to defects such as edge lifting and wrinkles. The labeling quality stability is even lower than that of manual application under standardized procedures.

[0005] Furthermore, with the diversification of refrigerator models, the size and curvature of the labeling area vary among different refrigerator sizes. Traditional manual labeling and direct-application equipment struggle to flexibly adapt to the labeling needs of different products, further exacerbating fluctuations in labeling accuracy and quality. These problems not only increase rework costs for companies and require dedicated personnel to reprocess substandard labeled products, but also risk product failures in random inspections due to labeling quality issues, impacting production schedules and market reputation. Therefore, overcoming the technical limitations of existing labeling methods and achieving high-precision, high-quality label application by optimizing equipment structure design and motion control logic has become a pressing technical challenge in the refrigerator manufacturing industry. Utility Model Content

[0006] In view of this, the present invention provides an automatic labeling device for refrigerators to solve the problems of operation errors and inaccurate labeling position in traditional manual labeling methods, and the technical problems of label bubbles, wrinkles and curling edges caused by traditional direct-attachment methods.

[0007] In a first aspect, embodiments of this utility model provide an automatic label-applying device for refrigerators, including...

[0008] A robotic arm assembly, and a labeling assembly disposed at the end of the robotic arm assembly, wherein the labeling assembly is detachably connected to the robotic arm assembly;

[0009] The labeling assembly includes a mounting plate, the mounting plate including a first mounting rod, a second mounting rod and a third mounting rod extending from the mounting plate to one end away from the mounting plate, and the end of the first mounting rod is provided with a label suction mechanism;

[0010] The label suction mechanism includes a needle-type cylinder and a label suction plate connected to the needle-type cylinder. The label suction plate is provided with a plurality of evenly distributed label suction holes.

[0011] Preferably, the robotic arm assembly includes a base, a first connecting arm, a first extending arm, a second connecting arm, a second extending arm, and a third connecting arm;

[0012] The first connecting arm is disposed on the base and can rotate based on the base; the first extension arm is disposed on the first connecting arm and can rotate based on the first connecting arm; the second connecting arm is disposed at the end of the first extension arm and can rotate based on the first extension arm; the second extension arm is rotatably connected to the second connecting arm; and the third connecting arm is disposed on the second extension arm and can rotate based on the second extension arm.

[0013] Preferably, one end of the labeling component is provided with a mounting base, and the labeling component is detachably connected to the third connecting arm through the mounting base. The connection between the labeling component and the third connecting arm through the mounting base can be adjusted based on the robotic arm component to adapt to the labeling angle requirements of refrigerators of different sizes.

[0014] Preferably, the first mounting support includes a first support plate and a second support plate arranged vertically, and the first support plate and the second support plate are arranged in a "T" shape.

[0015] Both the first support plate and the second support plate are provided with evenly distributed mounting holes; and the first mounting rod, the second mounting rod and the third mounting rod have the same structural configuration.

[0016] Preferably, the label suction mechanism is disposed on the second support plate, and the two ends of the second support plate are provided with a first guide rod and a second guide rod connected to the label suction plate;

[0017] The needle-shaped cylinder is disposed between the first guide rod and the second guide rod, and the cylinder rod of the needle-shaped cylinder passes through the second support plate and is connected to the label suction plate.

[0018] Preferably, the label-absorbing mechanism further includes a first fixing plate and a second fixing plate, as well as a cylinder connecting plate disposed between the first fixing plate and the second fixing plate;

[0019] An installation groove for mounting the label suction plate is formed between the first fixing plate, the second fixing plate, and the cylinder connecting plate.

[0020] Preferably, the second mounting rod and the third mounting rod are respectively provided with a first mounting block and a second mounting block, and a pressure roller that can rotate based on the first mounting block and the second mounting block is provided between the first mounting block and the second mounting block.

[0021] Preferably, the label roller includes a roller body and an installation area disposed on the roller body. The installation area is recessed in the roller body and a label-pressing adhesive block is provided in the installation area.

[0022] Preferably, the labeling block has a plurality of labeling strips arranged in a spiral shape and evenly spaced, and a groove is provided between each pair of labeling strips.

[0023] Preferably, after the labeling component completes the labeling, the labeling roller presses the label to ensure that the label is in full contact with the refrigerator surface and to eliminate air bubbles, thereby improving the adhesion and flatness of the label.

[0024] The automatic label-applying device for refrigerators provided by this utility model has the following beneficial effects:

[0025] This automatic refrigerator label application equipment uses the motion control of a robotic arm assembly to precisely position the labeling area on the refrigerator, effectively avoiding problems such as label position deviation and skewing caused by subjective factors in traditional manual application, thus significantly improving labeling accuracy. At the same time, thanks to the design of the pressure roller in the labeling assembly, especially the cooperation between the pressure strip and the groove on the pressure block, the label can be smoothly transitioned and evenly pressured during the application process, and air between the label and the refrigerator surface can be expelled in time. This completely solves the problems of uneven pressure in traditional manual application and the air bubbles, wrinkles, and curling edges that are easily generated by traditional direct application, ensuring that the label is applied flat and greatly improving the labeling quality and product appearance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0027] Figure 1 This is a schematic diagram of the overall structure of an automatic label-applying device for refrigerators.

[0028] Figure 2 This is a schematic diagram of a label suction machine for an automatic label application device for refrigerators.

[0029] Figure 3 This is a schematic diagram of the labeling component structure of an automatic labeling device for refrigerators.

[0030] Figure 4 This is a cross-sectional structural diagram of the label-pressing roller in an automatic label-applying device for refrigerators;

[0031] Parts and component numbers in the diagram:

[0032] 100 - Robotic arm assembly, 110 - Base, 120 - First connecting arm, 130 - First extension arm, 140 - Second connecting arm, 150 - Second extension arm, 160 - Third connecting arm;

[0033] 200-Labeling component, 210-Mounting base, 220-Mounting plate, 221-First mounting support rod, 222-First support plate, 223-Second support plate, 224-Second mounting support rod, 225-First mounting block, 226-Third mounting support rod, 227-Second mounting block, 230-Labeling roller, 231-Roller body, 232-Installation area, 233-Labeling adhesive block, 234-Labeling adhesive strip, 235-Groove;

[0034] 300-Label suction mechanism, 311-Needle cylinder, 312-First guide rod, 313-Second guide rod, 321-First fixing plate, 322-Second fixing plate, 323-Cylinder connecting plate, 324-Mounting groove, 330-Label suction plate, 331-Label suction hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0036] Example 1

[0037] Please see Figure 1 This utility model provides an automatic label bonding device for refrigerators. In the current refrigerator manufacturing industry, the label bonding process faces technical bottlenecks that are difficult to overcome by traditional bonding methods. These bottlenecks seriously restrict the improvement of production efficiency and product quality. Therefore, it is urgent to invent a new type of automatic label bonding device for refrigerators to solve the practical pain points.

[0038] Traditional manual labeling relies on operator experience, making it susceptible to label misalignment and skewness due to subjective factors such as hand tremors, visual biases, and fatigue. Uneven pressure can also cause air bubbles, wrinkles, and edge lifting, damaging product appearance, increasing rework costs, and failing to meet the precision requirements of modern production. Furthermore, while traditional direct-application equipment prioritizes efficiency, it lacks a smooth transition and uniform pressure mechanism. Air bubbles can easily accumulate during the initial application, leading to insufficient pressure at the edges and edge lifting, resulting in poor quality consistency. Simultaneously, with the diversification of refrigerator models, the varying sizes and curvatures of the labeling areas make traditional methods unsuitable, further exacerbating labeling quality fluctuations and potentially impacting product inspections and company reputation due to substandard labeling. To overcome these limitations, meet the demands for high-precision, high-quality, and highly adaptable labeling in production, reduce costs, and ensure production schedules, this automated refrigerator labeling equipment, integrating precise robotic arm control and an optimized label roller design, was invented.

[0039] Please see Figure 1 and Figure 2 Therefore, this embodiment provides an automatic label application device for refrigerators. The automatic label application device includes a robotic arm assembly 100 and a label application assembly 200 disposed at the end of the robotic arm assembly 100. The label application assembly 200 is detachably connected to the robotic arm assembly 100. The label application assembly 200 includes a mounting plate 220. The mounting plate 220 includes a first mounting support rod 221, a second mounting support rod 224, and a third mounting support rod 226 extending from the end of the mounting plate 220 away from the mounting plate 220. The end of the first mounting support rod 221 is provided with a label suction mechanism 300. The label suction mechanism 300 includes a needle cylinder 311 and a label suction plate 330 communicating with the needle cylinder 311. The label suction plate 330 is provided with a plurality of evenly distributed label suction holes 331.

[0040] Specifically, after the equipment is started, the robotic arm assembly 100 adjusts its posture according to a preset program, driving the labeling assembly 200, which is detachably connected at its end, to move to the label storage position. At this time, the label suction mechanism 300 at the end of the first mounting support rod 221 in the labeling assembly 200 starts to work. The needle-shaped cylinder 311 of the label suction mechanism 300 blows air to drive the label suction plate 330 to approach the label. At the same time, a number of evenly distributed label suction holes 331 on the label suction plate 330 generate negative pressure. Through the negative pressure suction force, the label is firmly adsorbed onto the surface of the label suction plate 330, completing the label adsorption action.

[0041] Next, the robotic arm assembly 100 continues to move the labeling assembly 200 and the adsorbed label to the preset release paper / release film removal position. This position is pre-set with a peeling structure adapted to the label release paper / release film (such as a peeling plate or peeling roller, not labeled in the above structure description, but a conventional supporting structure in the labeling process). The robotic arm assembly 100 precisely controls the angle and moving speed of the suction plate 330, so that the edge of the label adsorbed on the suction plate 330 first contacts the peeling structure. Then, the robotic arm assembly 100 moves the suction plate 330 along the preset trajectory. Under the action of adsorption force, the label moves with the suction plate 330, while the release paper / release film is blocked by the peeling structure and gradually separates from the label, finally completing the removal of the release paper / release film from the label.

[0042] Finally, the robotic arm assembly 100, carrying the label with the release paper / film removed, moves precisely to the preset labeling position on the refrigerator according to a pre-programmed sequence. Upon reaching the position, the needle cylinder 311 actuates again, driving the label suction plate 330 closer to the refrigerator labeling surface until the label contacts the surface of the preset labeling position. Then, the suction hole 331 stops generating negative pressure, releasing the suction force. Simultaneously, the robotic arm assembly 100 can slightly move the label suction plate 330 or apply a certain pressure to ensure that the label adheres tightly to the preset position on the refrigerator, completing the entire labeling workflow.

[0043] Further, please see Figure 1 The robotic arm assembly 100 includes a base 110, a first connecting arm 120, a first extending arm 130, a second connecting arm 140, a second extending arm 150, and a third connecting arm 160. The first connecting arm 120 is disposed on the base 110 and can rotate based on the base 110. The first extending arm 130 is disposed on the first connecting arm 120 and can rotate based on the first connecting arm 120. The second connecting arm 140 is disposed at the end of the first extending arm 130 and can rotate based on the first extending arm 130. The second extending arm 150 is rotatably connected to the second connecting arm 140. The third connecting arm 160 is disposed on the second extending arm 150 and can rotate based on the second extending arm 150.

[0044] The robotic arm assembly 100 adopts a multi-segment connection structure consisting of a base 110, a first connecting arm 120, a first extension arm 130, a second connecting arm 140, a second extension arm 150, and a third connecting arm 160, with each segment possessing independent rotation capabilities. In use, the base 110 provides stable support for the entire robotic arm. The first connecting arm 120 can rotate around the base 110, achieving a wide range of horizontal rotation. The first extension arm 130 rotates around the first connecting arm 120, the second connecting arm 140 rotates around the first extension arm 130, the second extension arm 150 is rotatably connected to the second connecting arm 140, and the third connecting arm 160 rotates around the second extension arm 150. This multi-segment rotation structure forms a multi-degree-of-freedom motion system. This design allows the labeling assembly 200 at the end of the robotic arm to flexibly adjust its position and angle, not only covering the labeling needs of different workstations on the refrigerator production line but also adapting to labeling scenarios on different surfaces of the refrigerator (such as sides, front, and top), avoiding labeling dead zones caused by limited movement.

[0045] Specifically, the independent rotation of each connecting arm and extension arm can be precisely controlled by the program to adjust the rotation angle and speed. Compared with traditional single-segment or two-segment robotic arms, the multi-segment structure can offset the impact of single component motion errors on the end position through coordinated fine-tuning of each segment. For example, when moving the labeling component 200 from the label storage position to the refrigerator labeling position, coarse positioning can be achieved by rotating the first connecting arm 120, then the horizontal distance can be adjusted by fine rotation of the first extension arm 130 and the second connecting arm 140, and finally the labeling angle can be optimized by rotating the second extension arm 150 and the third connecting arm 160. This ensures that the label adsorbed by the label suction mechanism 300 can be accurately aligned with the preset labeling area of ​​the refrigerator, further improving labeling accuracy and reducing positional offset problems.

[0046] With the diversification of refrigerator product specifications, different models of refrigerators vary in height, width, and labeling area location. In this robotic arm assembly 100, the first extension arm 130 and the second extension arm 150 can be rotated to adjust the overall arm length. In conjunction with the rotation of each connecting arm, it can flexibly adapt to the labeling needs of refrigerators ranging from small household refrigerators to large side-by-side refrigerators. For example, for refrigerators with a greater height, the first extension arm 130 can rotate upwards and the second extension arm 150 can extend, bringing the labeling component 200 to the top labeling area of ​​the refrigerator; for refrigerators with a greater width, the first connecting arm 120 can rotate laterally to expand the labeling coverage area. This eliminates the need to configure separate robotic arms for refrigerators of different sizes, reducing equipment investment costs and improving the versatility of the production line.

[0047] Further, please see Figure 1The labeling component 200 is provided with a mounting base 210 at one end. The labeling component 200 is detachably connected to the third connecting arm 160 through the mounting base 210. The connection between the labeling component 200 and the third connecting arm 160 through the mounting base 210 can be adjusted based on the robotic arm component 100 to adapt to the labeling angle requirements of refrigerators of different sizes.

[0048] Further, please see Figure 2 and Figure 3 The first mounting support rod 221 includes a first support plate 222 and a second support plate 223 arranged vertically, and the first support plate 222 and the second support plate 223 are arranged in a "T" shape; the first support plate 222 and the second support plate 223 are provided with uniformly distributed mounting holes; and the first mounting support rod 221, the second mounting support rod 224 and the third mounting support rod 226 have the same structural configuration.

[0049] Specifically, the "T"-shaped vertical structure ensures the overall structural stability of the mounting support while providing differentiated installation spaces for different components. For example, the first support plate 222 can be used to securely connect with the mounting plate 220, while the second support plate 223 provides a flat and independent mounting surface for the label suction mechanism 300 (or related components of the label pressing roller 230), avoiding mutual interference during component installation. The evenly distributed mounting holes allow for flexible adjustment of the installation positions of components such as the label suction mechanism 300 and the mounting block according to actual labeling needs, adapting to the adsorption or pressing requirements of labels of different sizes and improving the adaptability of the mounting support. In addition, the consistent design of the three mounting supports not only simplifies the production process and reduces manufacturing costs, but also enables universal replacement during equipment maintenance or component replacement, reducing the types of spare parts required. At the same time, it ensures that the installation benchmarks of all components of the labeling assembly 200 are consistent, further guaranteeing labeling accuracy and stability.

[0050] Furthermore, the label-absorbing mechanism 300 is disposed on the second support plate 223, and the two ends of the second support plate 223 are provided with a first guide rod 312 and a second guide rod 313 connected to the label-absorbing plate 330; the needle-type cylinder 311 is disposed between the first guide rod 312 and the second guide rod 313, and the cylinder rod of the needle-type cylinder 311 passes through the second support plate 223 and is connected to the label-absorbing plate 330.

[0051] The label suction mechanism 300 also includes a first fixing plate 321 and a second fixing plate 322, and a cylinder connecting plate 323 disposed between the first fixing plate 321 and the second fixing plate 322; an mounting groove 324 for mounting the label suction plate 330 is formed between the first fixing plate 321, the second fixing plate 322 and the cylinder connecting plate 323.

[0052] The label suction mechanism 300 operates around the stable adsorption and precise adhesion of labels, with each component working together to achieve automated operation. In the initial state, the label suction mechanism 300 is securely connected to the first mounting rod 221 via the second support plate 223. The label suction plate 330 is installed in the mounting groove 324 formed by the first fixing plate 321, the second fixing plate 322, and the cylinder connecting plate 323, and is kept horizontal by the first guide rod 312 and the second guide rod 313 at both ends of the second support plate 223. The needle-type cylinder 311 is located between the two guide rods, and its cylinder rod passes through the second support plate 223 and is connected to the label suction plate 330. At this time, the label suction plate 330 is in the initial position away from the label to be adsorbed.

[0053] When labels need to be adsorbed, the needle-type cylinder 311 first circulates air, and its cylinder rod extends and pushes the label-adsorbing plate 330 to move smoothly along the guiding direction of the first guide rod 312 and the second guide rod 313 until the label-adsorbing plate 330 is close to the label storage position. At the same time, the preset label-adsorbing holes 331 on the label-adsorbing plate 330 start to generate negative pressure. The label is firmly adsorbed onto the surface of the label-adsorbing plate 330 by the negative pressure adsorption force, thus completing the label adsorption action. During this process, the first guide rod 312 and the second guide rod 313 ensure that the label-adsorbing plate 330 does not deviate when it moves, ensuring accurate adsorption position.

[0054] When the label needs to be adhered to the preset position on the refrigerator, the robotic arm assembly 100 moves the labeling assembly 200 to the target position, and then the needle cylinder 311 actuates again. If the labeling distance needs to be finely adjusted, the cylinder rod can extend further, pushing the label suction plate 330 closer to the refrigerator labeling surface, so that the label makes precise contact with the refrigerator surface. After the label is adhered, the label suction hole 331 stops generating negative pressure, releasing the adsorption force on the label. Then the cylinder rod of the needle cylinder 311 retracts, driving the label suction plate 330 to return to the initial position along the first guide rod 312 and the second guide rod 313, preparing for the next label adsorption. Throughout the process, the mounting groove 324 structure always fixes and limits the label suction plate 330, ensuring that the label suction plate 330 maintains a stable posture during movement and adsorption, and ensuring the reliability of adsorption and adhesion.

[0055] Furthermore, the second mounting rod 224 and the third mounting rod 226 are respectively provided with a first mounting block 225 and a second mounting block 227, and a pressure roller 230 that can rotate based on the first mounting block 225 and the second mounting block 227 is provided between the first mounting block 225 and the second mounting block 227.

[0056] Further, please see Figure 4 The label roller 230 includes a roller body 231 and an installation area 232 disposed on the roller body 231. The installation area 232 is recessed in the roller body 231, and a label-pressing adhesive block 233 is provided in the installation area 232.

[0057] Furthermore, the labeling block 233 is provided with a plurality of labeling strips 234 arranged in a spiral shape and evenly spaced, and a groove 235 is provided between each pair of labeling strips 234.

[0058] Furthermore, after the labeling component 200 completes the labeling, the labeling roller 230 presses the label to ensure that the label is in full contact with the refrigerator surface and to eliminate air bubbles, thereby improving the adhesion and flatness of the label.

[0059] Specifically, the operation of the label roller 230 revolves around the pressing and reinforcement process after labeling. It achieves automated operation by relying on its structural design and installation characteristics. After the labeling component 200 completes the initial application of the label to the preset position on the refrigerator through the label suction mechanism 300, the robotic arm component 100 drives the labeling component 200 to move, so that the label roller 230 supported by the first mounting block 225 and the second mounting block 227 on the second mounting support rod 224 and the third mounting support rod 226 approaches the applied label. Since the label roller 230 can rotate freely based on the first mounting block 225 and the second mounting block 227, the robotic arm assembly 100 drives the label roller 230 to roll along the label surface according to a preset trajectory. The label-pressing adhesive block 233 in the recessed mounting area 232 on the roller body 231 first contacts the label. As the roller rotates, the spiral and evenly spaced label-pressing adhesive strips 234 on the label-pressing adhesive block 233 apply uniform pressure to the label, pressing the label firmly onto the refrigerator surface. At the same time, the grooves 235 between the two label-pressing adhesive strips 234 can timely discharge the air remaining between the label and the refrigerator surface during the rolling process, avoiding air retention and the formation of air bubbles. Throughout the pressing process, the robotic arm assembly 100 precisely controls the rolling speed and pressure of the label roller 230 to ensure that the label-pressing adhesive block 233 fully covers the label surface. After the pressing operation is completed, the robotic arm drives the label roller 230 to reset, waiting for the next labeling process.

[0060] Furthermore, the label roller 230 replaces the traditional manual pressing or no pressing step with rolling pressing. The flexible contact and uniform pressure of the labeling block 233 can prevent the label from wrinkling or curling due to uneven local force, ensuring that the label is fully attached to the refrigerator surface and greatly improving the flatness of the adhesion. Moreover, the cooperative design of the spiral labeling strip 234 and the groove 235 can actively expel residual air under the label during pressing, solving the problem of air bubbles that are easy to generate in traditional labeling from the root, and avoiding label falling off or appearance defects caused by air bubbles. The label roller 230 is based on the structure of the mounting block that can rotate freely, which can adapt to the labeling area of ​​different curved surfaces (such as arc surfaces and flat surfaces) of the refrigerator. With the flexible adjustment of the robotic arm, it can meet the labeling needs of refrigerators of different sizes. In addition, the flexible material of the labeling block 233 can protect the refrigerator surface from scratches, taking into account both the adhesion quality and the protection of the product appearance.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A refrigerator label automatic attaching apparatus characterized by comprising: include: A robotic arm assembly (100) and a labeling assembly (200) disposed at the end of the robotic arm assembly (100), the labeling assembly (200) being detachably connected to the robotic arm assembly (100); The labeling assembly (200) includes a mounting plate (220), which includes a first mounting rod (221), a second mounting rod (224) and a third mounting rod (226) extending from the mounting plate (220) away from the mounting plate (220), and the end of the first mounting rod (221) is provided with a label suction mechanism (300). The label suction mechanism (300) includes a needle cylinder (311) and a label suction plate (330) connected to the needle cylinder (311). The label suction plate (330) is provided with a plurality of evenly distributed label suction holes (331).

2. The automatic refrigerator label attaching apparatus according to claim 1, wherein The robotic arm assembly (100) includes a base (110), a first connecting arm (120), a first extension arm (130), a second connecting arm (140), a second extension arm (150), and a third connecting arm (160). The first connecting arm (120) is disposed on the base (110) and can rotate based on the base (110). The first extension arm (130) is disposed on the first connecting arm (120) and can rotate based on the first connecting arm (120). The second connecting arm (140) is disposed at the end of the first extension arm (130) and can rotate based on the first extension arm (130). The second extension arm (150) is rotatably connected to the second connecting arm (140). The third connecting arm (160) is disposed on the second extension arm (150) and can rotate based on the second extension arm (150).

3. The automatic refrigerator label attaching apparatus according to claim 2, wherein One end of the labeling component (200) is provided with a mounting base (210). The labeling component (200) is detachably connected to the third connecting arm (160) through the mounting base (210). The connection between the labeling component (200) and the third connecting arm (160) through the mounting base (210) can be adjusted based on the robotic arm component (100) to adapt to the labeling angle requirements of refrigerators of different specifications.

4. The automatic refrigerator label attaching apparatus according to claim 1, wherein The first mounting support rod (221) includes a first support plate (222) and a second support plate (223) arranged vertically, and the first support plate (222) and the second support plate (223) are arranged in a "T" shape; The first support plate (222) and the second support plate (223) are provided with evenly distributed mounting holes; and the first mounting rod (221), the second mounting rod (224) and the third mounting rod (226) have the same structural configuration.

5. The automatic refrigerator label attaching apparatus according to claim 4, wherein The label suction mechanism (300) is disposed on the second support plate (223), and the two ends of the second support plate (223) are provided with a first guide rod (312) and a second guide rod (313) connected to the label suction plate (330). The needle-type cylinder (311) is disposed between the first guide rod (312) and the second guide rod (313), and the cylinder rod of the needle-type cylinder (311) passes through the second support plate (223) and is connected to the label suction plate (330).

6. The automatic refrigerator label attaching apparatus according to claim 5, wherein The label-absorbing mechanism (300) also includes a first fixing plate (321) and a second fixing plate (322) and a cylinder connecting plate (323) disposed between the first fixing plate (321) and the second fixing plate (322); An installation groove (324) for mounting the label suction plate (330) is formed between the first fixing plate (321), the second fixing plate (322), and the cylinder connecting plate (323).

7. The automatic label-applying device for refrigerators according to claim 1, characterized in that, The second mounting rod (224) and the third mounting rod (226) are respectively provided with a first mounting block (225) and a second mounting block (227), and a pressure roller (230) that can rotate based on the first mounting block (225) and the second mounting block (227) is provided between the first mounting block (225) and the second mounting block (227).

8. The automatic refrigerator label attaching apparatus according to claim 7, wherein The label roller (230) includes a roller body (231) and an installation area (232) disposed on the roller body (231). The installation area (232) is recessed in the roller body (231), and a label-pressing adhesive block (233) is provided in the installation area (232).

9. The automatic refrigerator label attaching apparatus according to claim 8, wherein The labeling block (233) has a number of labeling strips (234) arranged in a spiral shape and at uniform intervals, and a groove (235) is provided between each pair of labeling strips (234).

10. The automatic label-applying device for refrigerators according to claim 9, characterized in that, After the labeling component (200) completes the labeling, the labeling roller (230) presses the label to ensure that the label is in full contact with the refrigerator surface and to eliminate air bubbles, thereby improving the strength and flatness of the label.

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