Paper attracting drum structure and hot melt adhesive labeling machine

Abstract

The utility model discloses a paper calling drum structure and a hot melt adhesive labeling machine. The paper calling drum structure comprises a support, a paper calling drum and a hot melt adhesive, the drum body is rotationally arranged on the support, a first mounting groove is formed in the circumference of the side wall of the drum body, a back plate and an idle plate are detachably arranged on the portions, located on the two sides of the first mounting groove, of the drum body respectively, and a telescopic assembly is arranged in the first mounting groove; the labeling mechanism comprises a mounting seat and a clamping jaw, the mounting seat is detachably arranged on the telescopic assembly, the clamping jaw is detachably arranged on the mounting seat, the clamping jaw is provided with an adsorption hole, an opening of the adsorption hole faces outwards, and the telescopic assembly drives the clamping jaw to move, so that the clamping jaw adsorbs or loosens a label through the adsorption hole. The utility model provides a paper calling drum structure which can adapt to production of labels of different specifications, the whole structure does not need to be replaced, idling of the paper calling drum structure is avoided, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of labeling machine technology, and in particular to a labeling drum structure and a hot melt adhesive labeling machine. Background Technology

[0002] Hot melt adhesive labeling machines are common automatic labeling equipment widely used in the food, pharmaceutical, daily chemical, electronics, and beverage industries. Their key feature is that only a small amount of adhesive is applied at the label's bonding point, leaving the rest of the label free of glue. These machines typically employ a rotary labeling method, achieving high-speed labeling and meeting the demands of efficient production. Depending on the label length and size, hot melt adhesive labeling machines require different spare parts, with the label drum, a crucial component, needing to be replaced and adjusted as needed.

[0003] The label drum, utilizing gear transmission, vacuum label suction, and grippers, applies adhesive to the labels before they are affixed, making it a relatively classic transmission component in hot melt adhesive labeling machines. However, every time a new label specification is added, the label drum needs to be redesigned and ordered, resulting in high procurement costs for manufacturers. In addition, the diversity of labels and the rapid pace of updates lead to some label drums being idle, resulting in resource waste.

[0004] To reduce expenses, it was decided to convert an unused 1.75L billboard drum into a billboard drum for larger-format products. The width of the larger-format billboards is the same as the 1.75L billboards, but their lengths differ; therefore, the solution of converting the unused 1.75L billboard drum is feasible. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a label drum structure that can adapt to the production of labels of different specifications without replacing the entire structure, avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0006] This application also proposes a hot melt adhesive labeling machine that can adapt to the production of labels of different specifications without replacing the entire structure, thus avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0007] According to the first aspect of the present application, the label drum structure includes: a support; a drum body rotatably mounted on the support, the drum body having a first mounting groove on its side wall circumference, a back plate and an idle plate detachably mounted on both sides of the drum body located in the first mounting groove, and a telescopic component disposed in the first mounting groove; and a labeling mechanism including a mounting base and a gripper, the mounting base being detachably mounted on the telescopic component, the gripper being detachably mounted on the mounting base, the gripper having an adsorption hole with the opening facing outward, and the telescopic component driving the gripper to move, causing the gripper to adsorb or release the label through the adsorption hole.

[0008] According to the first aspect of the embodiment of this application, the label drum structure has at least the following beneficial effects: since the grippers are detachably mounted on the mounting base, and the mounting base is detachably mounted on the telescopic component, during the production process, only the mounting base needs to be replaced to adjust the position of the grippers, and the back plate and idle plate need to be replaced accordingly, so as to adapt to the production of labels of different specifications without replacing the entire structure, avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0009] According to the paper drum structure described in the first aspect of this application, the mounting base includes a fixing part, a mounting part, and a transition part. The fixing part is provided with a fixing hole, the telescopic component is provided with a connecting plate, the fixing hole is connected to the connecting plate by a locking screw, the mounting part is provided with a mounting hole, the mounting hole is connected to the gripper by an adjusting screw, the mounting part is provided with an air passage hole, the adsorption hole is connected to the air passage hole, and the two ends of the transition part are respectively connected to the fixing part and the mounting part.

[0010] The paper drum structure according to the first aspect of the present application further includes a vacuum system, the vacuum system including a vacuum tube and a vacuum machine, the vacuum tube being connected to the air passage, and the vacuum machine being connected to the vacuum tube.

[0011] According to the first aspect of the present application, the label drum structure further includes a label pressing mechanism. The drum body is provided with a second mounting groove between the first mounting grooves. The label pressing mechanism is movably disposed in the second mounting groove. The label pressing mechanism moves to press or release the label.

[0012] According to the paper drum structure described in the first aspect of this application, the pressure mechanism includes a rotating shaft and a pressure claw. The rotating shaft is rotatably disposed on the drum body, and the pressure claw is disposed on the rotating shaft and located in the second mounting groove. The rotation of the rotating shaft causes the pressure claw to extend or retract into the second mounting groove.

[0013] According to the paper drum structure described in the first aspect of this application, the rotating shaft is provided with a swing block, the cantilever end of the swing block is provided with a cam element, the bracket is provided with a cam disk, the cam element is adapted to the cam disk, and the cam element moves along the cam disk, causing the swing block to drive the rotating shaft to rotate.

[0014] According to the paper drum structure described in the first aspect of this application, the cantilever end of the swing block is provided with a tension spring, and the other end of the tension spring is connected to the drum body.

[0015] According to the paper drum structure described in the first aspect of this application, the drum body is provided with a central shaft, the central shaft is provided with a first gear, the bracket is provided with a second gear, and the second gear is meshed with the first gear.

[0016] The hot melt adhesive labeling machine according to the second aspect of this application includes the paper drum structure described in the first aspect of this application.

[0017] The hot melt adhesive labeling machine according to the second aspect of the present application has at least the following beneficial effects: When the label drum structure described in the first aspect of the present application is applied to the hot melt adhesive labeling machine, since the grippers are detachably mounted on the mounting base and the mounting base is detachably mounted on the telescopic component, during the production process, only the mounting base needs to be replaced to adjust the position of the grippers, and the back plate and idle plate need to be replaced accordingly, so as to adapt to the production of labels of different specifications without replacing the entire structure, avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the paper drum structure according to an embodiment of this application;

[0021] Figure 2 This is a partial structural diagram of the billboard drum structure according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the mounting base in the paper drum structure of this application embodiment.

[0023] Figure label:

[0024] Support 100; Second gear 110; Cam plate 120; Drum body 200; First mounting groove 210; Back plate 220; Idle plate 230; Telescopic component 240; Connecting plate 250; Second mounting groove 260; Central shaft 270; First gear 280; Mounting seat 310; Fixing part 311; Mounting part 312; Transition part 313; Fixing hole 314; Mounting hole 315; Vent hole 316; Gripper 320; Adsorption hole 330; Rotating shaft 510; Pressure claw 520; Swing block 530; Cam component 540; Tension spring 550. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0027] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this application, unless otherwise expressly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this application based on the specific content of the technical solution. In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Reference Figures 1 to 3 This application provides a label drum structure, including: a support 100; a drum body 200 rotatably mounted on the support 100, a first mounting groove 210 provided on the circumference of the side wall of the drum body 200, a back plate 220 and an idle plate 230 respectively detachably mounted on both sides of the drum body 200 located in the first mounting groove 210, and a telescopic component 240 provided in the first mounting groove 210; and a labeling mechanism including a mounting base 310 and a gripper 320, the mounting base 310 being detachably mounted on the telescopic component 240, the gripper 320 being detachably mounted on the mounting base 310, the gripper 320 being provided with an adsorption hole 330, the opening of the adsorption hole 330 facing outward, the telescopic component 240 driving the gripper 320 to move, so that the gripper 320 adsorbs or releases the label through the adsorption hole 330.

[0030] When converting an idle 1.75L paper drum into a paper drum for larger products, the paper length of the larger products is 2.1mm longer than that of the 1.75L paper. Therefore, to accommodate the 2.1mm longer paper, the mounting base 310 is replaced, causing the gripper 320 to shift 2.1mm away from its original position toward the idle plate 230. Correspondingly, the back plate 220 and the idle plate 230 are replaced, extending the back plate 220 by 2.2mm and shortening the idle plate 230 by 2.1mm. This ensures that the gaps between the gripper 320 and the back plate 220, and between the idle plate 230 and the gripper 320, remain unchanged, ensuring that the detection element will not trigger an alarm during subsequent production, thus guaranteeing operational stability and safety.

[0031] It should be noted that the length of the billboard varies for different types of large-format products. In this case, it is only necessary to replace the corresponding mounting base 310, back plate 220, and idle plate 230. This application does not impose any restrictions on this.

[0032] The label drum structure described in the first aspect of this application has a gripper 320 that is detachably mounted on the mounting base 310, and the mounting base 310 is detachably mounted on the telescopic component 240. Therefore, during the production process, only the mounting base 310 needs to be replaced to adjust the position of the gripper 320, and the back plate 220 and the idle plate 230 need to be replaced accordingly. This allows it to adapt to the production of labels of different specifications without replacing the entire structure, avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0033] It should be noted that the telescopic component 240 can be a cylinder or a cam structure. Those skilled in the art can make reasonable choices regarding the configuration of the telescopic component 240 based on actual circumstances, and this application does not impose any restrictions in this regard.

[0034] Reference Figures 1 to 3In this embodiment, the mounting base 310 includes a fixing part 311, a mounting part 312, and a transition part 313. The fixing part 311 is provided with a fixing hole 314, and the telescopic component 240 is provided with a connecting plate 250. The fixing hole 314 is connected to the connecting plate 250 by a locking screw. The mounting part 312 is provided with a mounting hole 315, which is connected to the gripper 320 by an adjusting screw. The mounting part 312 is provided with an air vent 316, and the adsorption hole 330 is connected to the air vent 316. The two ends of the transition part 313 are connected to the fixing part 311 and the mounting part 312, respectively. The transition part 313 is configured as an arc transition part 313. Since the dimensions of the fixing part 311 and the mounting part 312 are unchanged from the original 1.75L mounting base 310, the distance between the fixing part 311 and the mounting part 312 is changed by providing the transition part 313, thereby changing the position of the gripper 320. The structure is simple and the operation is convenient.

[0035] Furthermore, the label drum structure also includes a vacuum system, which comprises a vacuum tube and a vacuum unit. The vacuum tube is connected to the air vent 316, and the vacuum unit is connected to the vacuum tube. By incorporating the vacuum system, the grippers 320 perform vacuum adsorption on the labels, ensuring stable label handling while preventing scratches, thus improving operational stability and reliability and guaranteeing product quality.

[0036] Reference Figure 1 In some embodiments of this application, the label drum structure further includes a label pressing mechanism. A second mounting groove 260 is provided between the first mounting grooves 210 and the drum body 200. The label pressing mechanism is movably disposed in the second mounting groove 260, and its movement is used to press or release the label. By pressing the label with the pressing mechanism, the adhesion of the label can be improved, ensuring product quality. Specifically, the label pressing mechanism includes a rotating shaft 510 and a pressing claw 520. The rotating shaft 510 is rotatably disposed on the drum body 200, and the pressing claw 520 is disposed on the rotating shaft 510 and located within the second mounting groove 260. Rotation of the rotating shaft 510 causes the pressing claw 520 to extend or retract into the second mounting groove 260. The rotating shaft 510 rotates to drive the pressure claw 520 to extend out of the second mounting groove 260. At this time, the pressure claw 520 protrudes from the drum body 200, thereby pressing the label onto the product to be labeled. After the pressing is completed, the rotating shaft 510 rotates in the opposite direction to drive the pressure claw 520 to retract into the second mounting groove 260, in preparation for the next round of label pressing.

[0037] As can be conceived, the rotating shaft 510 is equipped with a swing block 530, and the cantilever end of the swing block 530 is equipped with a cam element 540. The bracket 100 is equipped with a cam disk 120. The cam element 540 is adapted to the cam disk 120, and the cam element 540 moves along the cam disk 120, causing the swing block 530 to drive the rotating shaft 510 to rotate. By adopting the above structure, the extension or retraction of the pressure claw 520 can be achieved. The structure is simple and the operation is convenient. It is easy to understand that the cantilever end of the swing block 530 is equipped with a tension spring 550, and the other end of the tension spring 550 is connected to the drum body 200. By setting the tension spring 550, the pressure claw 520 can be automatically reset without additional power operation, thus improving work efficiency.

[0038] It should be noted that the rotating shaft 510 can also be fitted with a torsion spring, which can also realize the automatic reset of the pressure claw 520. This application does not limit this.

[0039] Reference Figure 2 In some embodiments of this application, the drum body 200 is provided with a central shaft 270, the central shaft 270 is provided with a first gear 280, and the bracket 100 is provided with a second gear 110, which meshes with the first gear 280. The bracket 100 is equipped with a motor, the output end of which is connected to the second gear 110. The second motor drives the second gear 110 to rotate, which in turn drives the first gear 280 to rotate, thereby causing the central shaft 270 to rotate the drum body 200. The structure is simple and the operation is convenient. Of course, the central shaft 270 can also be directly connected to the output end of the motor; this application does not limit this.

[0040] A second aspect of this application provides a hot melt adhesive labeling machine, including the label drum structure described in the first aspect of this application.

[0041] When the label drum structure described in the first aspect of this application is applied to a hot melt adhesive labeling machine, since the gripper 320 is detachably mounted on the mounting base 310 and the mounting base 310 is detachably mounted on the telescopic component 240, during the production process, only the mounting base 310 needs to be replaced to adjust the position of the gripper 320, and the back plate 220 and the idle plate 230 need to be replaced accordingly. This allows the machine to adapt to the production of labels of different specifications without replacing the entire structure, thus avoiding the idleness of the label drum structure, reducing production costs, and improving production efficiency.

[0042] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A paper drum structure, characterized in that, include: support; The drum body is rotatably mounted on the bracket. A first mounting groove is provided on the circumference of the side wall of the drum body. A back plate and an idle plate are detachably provided on both sides of the drum body located in the first mounting groove. A telescopic component is provided in the first mounting groove. The labeling mechanism includes a mounting base and grippers. The mounting base is detachably mounted on the telescopic assembly, and the grippers are detachably mounted on the mounting base. The grippers are provided with suction holes with the openings facing outwards. The telescopic assembly drives the grippers to move, causing the grippers to suction or release labels through the suction holes.

2. The paper drum structure according to claim 1, characterized in that, The mounting base includes a fixing part, a mounting part, and a transition part. The fixing part is provided with a fixing hole, and the telescopic component is provided with a connecting plate. The fixing hole is connected to the connecting plate by a locking screw. The mounting part is provided with a mounting hole, and the mounting hole is connected to the gripper by an adjusting screw. The mounting part is provided with an air passage hole, and the adsorption hole is connected to the air passage hole. The two ends of the transition part are respectively connected to the fixing part and the mounting part.

3. The paper drum structure according to claim 2, characterized in that, It also includes a vacuum system, which comprises a vacuum tube and a vacuum machine, wherein the vacuum tube is connected to the air passage and the vacuum machine is connected to the vacuum tube.

4. The paper drum structure according to claim 1, characterized in that, It also includes a label pressing mechanism, wherein the drum body is provided with a second mounting groove between the first mounting groove, the label pressing mechanism is movably disposed in the second mounting groove, and the label pressing mechanism moves to press or release the label.

5. The paper drum structure according to claim 4, characterized in that, The marking mechanism includes a rotating shaft and a pressing claw. The rotating shaft is rotatably mounted on the drum body, and the pressing claw is mounted on the rotating shaft and located in the second mounting groove. Rotation of the rotating shaft causes the pressing claw to extend or retract into the second mounting groove.

6. The paper drum structure according to claim 5, characterized in that, The rotating shaft is equipped with a swing block, and the cantilever end of the swing block is equipped with a cam component. The bracket is equipped with a cam disk, and the cam component is adapted to the cam disk. The cam component moves along the cam disk, causing the swing block to drive the rotating shaft to rotate.

7. The paper drum structure according to claim 6, characterized in that, The cantilever end of the swing block is provided with a tension spring, and the other end of the tension spring is connected to the drum body.

8. The paper drum structure according to claim 1, characterized in that, The drum body is provided with a central shaft, the central shaft is provided with a first gear, and the bracket is provided with a second gear, the second gear being meshed with the first gear.

9. A hot melt adhesive labeling machine, characterized in that, Includes the paper drum structure as described in any one of claims 1 to 8.

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