Label tape cutting device and labeling equipment

Abstract

The label tape cutting device comprises a transmission assembly and a cutting assembly, the transmission assembly comprises a first gear and a second gear which are meshed with each other, and the cutting assembly comprises a blade and a blade bearing structure. The blade bearing structure is fixed to the side face of the first gear on the first side in a swinging mode and can rotate around the central axis of the first gear along with the first gear, and a roller is arranged on the second side, opposite to the first side, of the blade bearing structure. The label tape cutting device further comprises a movement guiding mechanism, the movement guiding mechanism is provided with an annular guiding piece, a protruding part is formed on the peripheral contour of the annular guiding piece, and the protruding part is arranged on the annular guiding piece and extends outwards from the second side of the blade bearing structure in a manner of being far away from the blade bearing structure. The roller bears against the outer circumferential contour of the annular guide in a rolling manner.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machinery, and in particular relates to a label tape cutting device and a label sleeve equipment. background

[0003] The label sleeve machine can automatically cut the label tape, accurately insert it, and cooperate with the subsequent heat shrink process to fix the label intact on the cylindrical container. The label sleeve machine has excellent high-speed and stable performance. Nowadays, automated high-speed label sleeve equipment has been widely used in various fields.

[0004] In modern sleeve label production lines, accurate and efficient cutting of label tapes is a key link to ensure product quality and production efficiency. With the continuous advancement of automation technology, label tape cutting devices have gradually achieved mechanization and automation, significantly improving cutting efficiency and accuracy. However, existing label tape cutting devices still have some problems, such as complex structure, high maintenance cost, and insufficient cutting stability. These problems are particularly prominent in continuous and high-speed label cutting operations.

[0005] Therefore, there is an urgent need to improve the label tape cutting device and the corresponding label sleeve equipment in the prior art so that the device has a simple structure, convenient maintenance, flexible adjustment and higher cutting efficiency and precision. Summary of the invention

[0006] The object of the present invention is to provide a label tape cutting device and a corresponding label sleeve device, by which some or all of the technical problems in the prior art can be overcome, especially efficient and high-precision cutting of the label tape can be achieved with a simple structure, and at the same time, the label tape cutting device is easy to maintain and can be flexibly adjusted according to actual needs.

[0007] The above technical problem is solved by a label tape cutting device, which includes a transmission assembly and a cutting assembly, wherein the transmission assembly includes a first gear and a second gear meshing with each other, and the cutting assembly includes a blade and a blade bearing structure, wherein the blade bearing structure is fixed on the side of the first gear in a swingable manner on the first side and can rotate around the central axis of the first gear together with the first gear, and a roller is arranged on the second side of the blade bearing structure opposite to the first side, and the roller extends outward from the second side of the blade bearing structure in a manner away from the blade bearing structure, and the label tape cutting device also includes a motion guide mechanism, wherein the motion guide mechanism has an annular guide, wherein a protrusion is constructed on the outer peripheral contour of the annular guide, and the roller is abutted against the outer peripheral contour of the annular guide in a rolling manner. Here, under the drive of the second gear, the first gear rotates around its central axis. Therefore, on the one hand, the cutting assembly can rotate around the central axis of the first gear as the first gear rotates, that is, it generally performs a circular motion around the central axis. On the other hand, the motion trajectory of the cutting assembly can be fine-tuned by the motion guide mechanism, specifically by the protrusion on the outer peripheral contour of the annular guide pushing the cutting assembly outward, so that the cutting assembly or the blade swings outward and disengages from the label tape, that is, disengagement is achieved after the cutting is completed.

[0008] According to a preferred embodiment, the label tape cutting device includes two or more cutting assemblies and two or more protrusions, wherein the protrusions are evenly distributed on the outer circumference of the annular guide and the number of the protrusions is the same as the number of the cutting assemblies. That is, at least one cutting assembly can be provided in the label tape cutting device, and the same number of protrusions are provided on the outer circumference of the annular guide, and these cutting assemblies and protrusions are evenly distributed on the circumference. The cutting efficiency can be improved by providing multiple cutting assemblies. However, it is preferred to provide two cutting assemblies, thereby achieving an optimal balance between structural simplicity and efficiency.

[0009] It is also advantageous that the blade support structure comprises a first clamping plate and a second clamping plate, between which the blade is clamped. Here, the first clamping plate and the second clamping plate can be clamped together by, for example, bolts. Thus, the blade can be replaced or adjusted when necessary.

[0010] Preferably, the blade bearing structure is fixed to the side of the first gear in a swingable manner by means of two thrust bearings, the two thrust bearings are arranged on both sides of the blade bearing structure and clamp the first clamping plate and the second clamping plate together with the support column passing through the two thrust bearings, the support column is fixed to the side of the first gear and extends vertically from the side of the first gear. Here, the thrust bearings enable the blade bearing structure to swing relative to the first gear under the action of external force, for example, swing outward. In addition, the thrust bearings arranged on both sides of the blade bearing structure can also assist in clamping the first clamping plate and the second clamping plate.

[0011] It is also advantageous if a return torsion spring is provided between the blade carrier and the first gear, the legs of which bear on the blade carrier on the one hand and on the first gear on the other hand, so that the roller of the blade carrier always bears against the outer peripheral contour of the annular guide, ensuring movement accuracy and thus achieving high cutting accuracy even without further limiting components.

[0012] It is also preferred that the motion guide mechanism further has another annular guide surrounding the annular guide, the other annular guide having an inner contour complementary to the outer contour of the annular guide, wherein the outer contour of the annular guide and the inner contour of the other annular guide together form the track of the roller. Here, the track of the roller is formed by the outer contour of the annular guide and the inner contour of the other annular guide together, so that the motion trajectory of the roller on the blade bearing structure can be reliably determined, and thus high cutting accuracy is achieved.

[0013] It is also advantageous that the second gear is connected to the output shaft of the motor in a mechanical transmission mode, or the second gear is arranged on the output shaft of the motor in a non-rotatable manner. In other words, the second gear can be driven directly or indirectly by the drive motor and thus drive the first gear, thereby driving the cutting assembly.

[0014] According to a preferred solution, the thrust bearing and the roller are arranged on both sides of the blade support structure opposite to the blade. Particularly good running stability can be achieved through such an arrangement.

[0015] It is also advantageous that the label tape cutting device further comprises a fixed bracket, which comprises a first support plate and a second support plate, wherein the first gear is rotatably fixed to the first support plate, and the annular guide is replaceably fixed to the second support plate. Here, the stability of the entire label tape cutting device is ensured by the fixed bracket, so that stable cutting accuracy can be ensured even under high-speed cutting conditions. The annular guide is replaceably fixed to the second support plate, so that the annular guide can be replaced according to actual needs, thereby flexibly adjusting the label tape cutting device.

[0016] The present invention further provides a sleeve labeling device, which comprises a bottle separating mechanism, a sleeve labeling mechanism and a main heat shrinking furnace, wherein the sleeve labeling mechanism is provided with the aforementioned label tape cutting device.

[0017] In the label tape cutting device and the sleeve labeling equipment according to the present application, accurate guidance and efficient movement of the cutting component are achieved through the ingenious design of the transmission component and the motion guide mechanism. At the same time, the introduction of the label tape cutting device in the sleeve labeling equipment further improves the label tape cutting accuracy and production efficiency in the sleeve labeling process. In addition, the annular guide or the blade can be replaced according to actual needs, so the label tape cutting device is easy to maintain and can be flexibly adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of a label tape cutting device according to the present invention;

[0019] Figure 2 yes Figure 1 A three-dimensional view of the label tape cutting device after removing the first support plate and the drive motor;

[0020] Figure 3 is a top view of a first supporting plate of the label tape cutting device;

[0021] Figure 4 is a top view of a second supporting plate and an annular guide of the label tape cutting device;

[0022] Figure 5 It is a three-dimensional view of a cutting component of a label tape cutting device. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In existing sleeve labeling production lines, label tapes are usually provided in the form of rolls. In the sleeve labeling mechanism, it is necessary to cut the continuous label tape unrolled from the roll into labels for sleeves on individual containers. For this purpose, a label tape cutting device for cutting the label tape is usually provided in the sleeve labeling mechanism. The existing label tape cutting device has a complex structure, and there is room for further improvement in cutting efficiency and cutting accuracy. In addition, different blades or cutting components are required for different needs, and different cutting tracks may be required, so there are certain requirements for the adjustability of the label tape cutting device. In the present application, the above-mentioned problems can be ideally avoided by means of a specially designed transmission assembly and cutting assembly in combination with a corresponding detachable annular guide, and good cutting accuracy and cutting efficiency can be achieved with a simple structure.

[0025] Figure 1 The three-dimensional view of the label tape cutting device 100 according to the present invention is shown. The label tape cutting device 100 includes a cutting assembly and a transmission assembly. The transmission assembly includes a first gear 1 and a second gear 2. Here, the first gear 1 is rotatably fixed on the first support plate 3 of the fixed bracket. The second gear 2 is driven by a drive motor 4. Here, the drive motor 4 is arranged on one side of the first support plate 3, and the second gear is arranged on the other side of the first support plate 3. The output shaft of the drive motor 4 passes through the first support plate, and the second gear 2 is arranged on the output shaft of the drive motor 4. Of course, it is also conceivable to mechanically connect the second gear 2 with the output shaft of the drive motor through a gear transmission mechanism. The second gear 2 meshes with the first gear 1 and can thus drive the first gear to rotate. The first gear 1 is rotatably fixed on the first support plate 3 on the first side, specifically, it is arranged on the first support plate 3 on the side opposite to the drive motor 4. The first gear 1 is fixed with a cutting assembly 5 on the second side opposite to the first side. The cutting assembly 5 is fixed on the second side of the first gear 1 in a swingable manner.

[0026] The cutting assembly 5 includes a blade and a blade bearing structure 6. Although only one cutting assembly can be seen, the label tape cutting device here includes two cutting assemblies and the outer peripheral contour of the annular guide includes two protrusions, wherein the protrusions are evenly distributed on the outer peripheral contour of the annular guide 8 and the number of the protrusions is the same as the number of the cutting assemblies. However, it is also conceivable to provide more than two cutting assemblies and more than two protrusions.

[0027] The label tape cutting device 100 also has a motion guide mechanism. The motion guide mechanism includes an annular guide 8. A protrusion is constructed on the outer peripheral contour of the annular guide 8, and the roller is abutted against the outer peripheral contour of the annular guide in a rolling manner. This means that the cutting assembly 5 can rotate around the central axis or rotation axis of the first gear together with the first gear 1. On the other hand, for example, under the action of an external force, the cutting assembly 5 can swing relative to the first gear 1. For example, when it is lifted by the protrusion of the outer peripheral contour, the cutting assembly 5 swings outward, thereby breaking away from the contact with the label tape. Specifically, the blade bearing structure 6 is fixed on the side of the first gear 1 in a swingable manner on its first side and can rotate around the central axis of the first gear together with the first gear, and a roller 11 is provided on the second side of the blade bearing structure 6 opposite to the first side, and the roller extends outward from the second side of the blade bearing structure in a manner away from the blade bearing structure. The roller is abutted against the outer peripheral contour of the annular guide in a rolling manner. As a result, the cutting assembly 5 can swing relative to the first gear 1.

[0028] The fixed bracket further includes a second support plate 7. The second support plate 7 is arranged substantially parallel to the first support plate 3. The first support plate 3 and the second support plate 7 are fixedly connected to each other by a support. Figure 1 In the embodiment, fixing holes for pillars are provided at the four corners of the first support plate and the second support plate. Central through holes are provided in the first support plate 3 and the second support plate 7, respectively. The central through holes of the first support plate 3 and the second support plate 7 are coaxially arranged. A central guide post (not shown) for the label tape can pass through the central through holes of the first support plate 3 and the second support plate 7. The central through hole of the second support plate 7 is larger than the central through hole of the first support plate 3. An annular guide 8 is also provided in the central through hole of the second support plate 7. Two fixing legs 9 are provided on the side of the second support plate 7 facing away from the first support plate 3. The label tape cutting device 100 can be fixed on the frame of the sleeve labeling equipment by means of the fixing legs.

[0029] Figure 2 Shows something like Figure 1 , wherein the first support plate and the drive motor are removed for clarity. Figure 2The gear mechanism can be clearly seen in the figure. Only the second gear 2 is shown schematically here. The end side of the first gear 1 is provided with a flange 10 surrounding the center hole, and a plurality of fixed connection holes, such as threaded holes, are evenly distributed on the flange 10. The first gear 1 is connected to a rotatable component arranged on the first support plate 3, such as a bearing inner ring, a rolling ring, etc., by means of the flange 10. It is also conceivable to replace the flange 10 and provide a hollow stub shaft on the side of the first gear 1, which is rotatably engaged on the first support plate. In addition, a plurality of fixing holes are evenly distributed in the radial direction of the first gear 1, and these fixing holes are used to fix the cutting assembly in a swingable manner. These fixing holes are arranged between the flange 10 and the tooth portion. Therefore, different numbers of cutting assemblies can be fixed on the first gear 1 and / or the cutting assemblies can be fixed at different positions. Figure 2 The second support plate 7 and the annular guide 8 installed therein are also shown. The roller 11 of the cutting assembly 5 is against the outer peripheral contour of the annular guide 8. Here, the inner structure of the annular guide 8 has a through hole corresponding to the central hole of the first gear, that is to say, the through hole size of the central hole and the annular guide is substantially the same and coaxially arranged. The second support plate 7 is also provided with a central through hole, the diameter of which is greater than the diameter of the annular guide 8. Therefore, the annular guide 8 can be installed in the central through hole. The inner contour of the central through hole of the second support plate 7 is adapted to the outer peripheral contour of the annular guide 8. In other words, the motion guide mechanism also has another annular guide around the annular guide, and the other annular guide has an inner contour complementary to the outer peripheral contour of the annular guide, wherein the outer peripheral contour of the annular guide and the inner contour of the other annular guide together form the track of the roller. Due to the above design, the central guide column for guiding the label belt can pass through the first support plate, the first gear and the annular guide and the second support plate.

[0030] Figure 3 A top view of the first support plate 3 is shown. The first support plate 3 has a central through hole 12 and a plurality of bolt fixing holes arranged around the central through hole 12. The central through hole 12 is designed for the central guide column of the guide label tape to pass through. The bolt fixing hole is used to fix the fixing component arranged on the first support plate 3 for fastening the fixing component that cooperates with the rotatable component, and the flange 10 of the first gear 1 of the rotatable component cooperates. The first support plate 3 is designed to be roughly rectangular. A mounting groove 13 for the drive motor is provided at one corner of the first support plate 3. The mounting groove 13 is designed to be circular and has an output shaft through hole 14 for the output shaft through hole of the drive motor in the center. In addition, fixing holes for connecting the first support plate 3 and the pillars of the second support plate 7 are respectively provided at the four corners of the first support plate 3.

[0031] Figure 4Only the relevant structure of the second support plate 7 is shown. An annular guide 8 is arranged in the central through hole. Here, the outer contour of the annular guide 8 and the inner contour of the central through hole together form the track of the roller. In other words, the second support plate 7 with the central through hole forms another annular guide. The outer contour of the annular guide 8 is adapted to the inner contour of the central through hole, and both contours are roughly circular, and the inner contour is correspondingly provided with a recessed portion at the position corresponding to the protrusion of the outer contour. Here, the protrusion can be in various forms, such as an arc-shaped protrusion, a protrusion with a pointed tip, a ramp-like protrusion, etc. However, an arc-shaped protrusion is preferred. This makes the entire movement process smoother. The second support plate 7 is also designed to be roughly rectangular and is fixedly connected to two fixed legs 9 through connecting holes arranged at the four corners.

[0032] Figure 5 A separate stereoscopic view of the cutting assembly 8 is shown. The cutting assembly 8 comprises a blade 15 and a blade bearing structure 6. Here, the blade bearing structure 6 comprises a first clamping plate 16 and a second clamping plate 17. The blade 15 is clamped between the first clamping plate 16 and the second clamping plate 17. The blade bearing structure 6 is fixed on the side of the first gear by means of a thrust bearing 18. In addition, the blade bearing mechanism 6 is provided with a roller 11 on the side facing away from the first gear, and the roller is supported by a column 19 extending vertically from the side of the blade bearing mechanism 6. The roller 11 can roll around the column. Therefore, when the roller 11 abuts against the outer peripheral contour of the annular guide, the roller 11 can roll along the outer peripheral contour and drive the entire cutting assembly 5 to swing relative to the first gear as the outer peripheral contour changes. The first clamping plate 16 and the second clamping plate 17 are clamped by means of thrust bearings 18 arranged on both sides of the blade bearing structure 6, specifically, the thrust bearings 18 on both sides and the support column passing through the two thrust bearings clamp the first clamping plate and the second clamping plate together. The support column is fixed on the side of the first gear and extends vertically from the side of the first gear. In addition, the first clamping plate and the second clamping plate can also be clamped simultaneously by means of bolts 20. The bolts are arranged diagonally with the thrust bearing. Thus, the angle of the blade can be adjusted or the blade can be replaced by loosening the bolts. The thrust bearing and the roller are arranged on both sides of the blade bearing structure opposite to the blade. That is, the thrust bearing and the roller are arranged on the same side, and the blade is arranged on the other side. In addition, at least one corner of the blade bearing mechanism is rounded, thereby avoiding collisions during operation as much as possible.

[0033] Although not shown, it is also possible to consider that a return torsion spring is provided between the blade bearing structure and the first gear. In addition, the annular guide also can be fixed on the second support plate in a replaceable manner.

[0034] In addition, the label tape cutting device also includes at least one photoelectric sensor, which is used to detect the position of the blade, the position of the protrusion of the annular guide, or the parameters of the label tape, etc. The photoelectric sensor can be connected to the upper controller of the sleeve labeling device by signal and transmit the collected signal to the upper controller. The upper controller analyzes the operation of the label tape cutting device according to the collected signal, determines whether the label tape is twisted, piled up, or cannot be cut properly or the cutting is not synchronized, and sends a warning signal, such as an optical or acoustic signal, to remind the user when necessary. In addition, the drive motor is also connected to the upper controller by signal, and the upper controller can drive the drive motor to control the operation of the first gear so that the cutting speed is adapted to the movement speed of the label tape and the required speed of the downstream label. For example, when the container to be sleeved is transported to the sleeve labeling position and a label is required, the controller drives the drive motor so that the gear rotates half a circle (in the case of two blades) or one circle (in the case of one blade) to complete the cutting of the label tape.

[0035] The present invention also discloses a sleeve labeling device. The sleeve labeling device may include a bottle separation mechanism, a sleeve labeling mechanism, and a main heat shrinking furnace, wherein the sleeve labeling mechanism is provided with the aforementioned label tape cutting device. In the sleeve labeling device, accurate guidance and efficient movement of the cutting component are achieved through the ingenious design of the transmission component and the motion guide mechanism. At the same time, the label tape cutting accuracy and production efficiency of the sleeve labeling process are further improved. In addition, the annular guide or the blade can be replaced or the motion trajectory of the blade can be adjusted according to actual needs. The label tape cutting device in the present application is also easy to maintain and can be flexibly adjusted according to actual needs.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A label tape cutting device, comprising a transmission assembly and a cutting assembly, characterized in that: The transmission assembly includes a first gear and a second gear that mesh with each other, and the cutting assembly includes a blade and a blade bearing structure. The blade bearing structure is fixed to the side surface of the first gear in a swingable manner on the first side and can rotate around the central axis of the first gear together with the first gear. A roller is arranged on the second side of the blade bearing structure opposite to the first side, and the roller extends outward from the second side of the blade bearing structure in a manner away from the blade bearing structure. The label tape cutting device also includes a motion guiding mechanism, and the motion guiding mechanism has an annular guide, wherein a protrusion is constructed on the outer peripheral contour of the annular guide, and the roller is abutted against the outer peripheral contour of the annular guide in a rolling manner.

2. The label tape cutting device according to claim 1, characterized in that: The label tape cutting device comprises two or more cutting components and the outer peripheral contour of the annular guide has two or more protrusions, wherein the protrusions are evenly distributed on the outer peripheral contour of the annular guide and the number of the protrusions is the same as the number of the cutting components.

3. The label tape cutting device according to claim 1 or 2, characterized in that: The blade bearing structure comprises a first clamping plate and a second clamping plate, and the blade is clamped between the first clamping plate and the second clamping plate.

4. The label tape cutting device according to claim 3, characterized in that: The blade supporting structure is fixed on the side of the first gear in a swingable manner by means of two thrust bearings. The two thrust bearings are arranged on both sides of the blade supporting structure and clamp the first clamping plate and the second clamping plate together with a support column passing through the two thrust bearings. The support column is fixed on the side of the first gear and extends vertically from the side of the first gear.

5. The label tape cutting device according to claim 4, characterized in that: A return torsion spring is provided between the blade bearing structure and the first gear.

6. The label tape cutting device according to claim 1 or 2, characterized in that: The motion guide mechanism also has another annular guide surrounding the annular guide, the other annular guide having an inner contour complementary to the outer contour of the annular guide, wherein the outer contour of the annular guide and the inner contour of the other annular guide together form a track for the roller.

7. The label tape cutting device according to claim 1 or 2, characterized in that: The second gear is connected to the output shaft of the motor in a mechanical transmission manner, or the second gear is arranged on the output shaft of the motor in a non-rotatable manner.

8. The label tape cutting device according to claim 3, characterized in that: The thrust bearing and the roller are arranged opposite the blade on both sides of the blade support structure.

9. The label tape cutting device according to claim 1 or 2, characterized in that: The label tape cutting device further comprises a fixed bracket, which comprises a first supporting plate and a second supporting plate, wherein the first gear is rotatably fixed on the first supporting plate, and the annular guide is replaceably fixed on the second supporting plate.

10. A labeling device, characterized in that: The sleeve labeling equipment comprises a bottle separating mechanism, a sleeve labeling mechanism and a main heat shrinking furnace, wherein the sleeve labeling mechanism is provided with a label tape cutting device according to any one of claims 1 to 9.

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