Conveying device of labeling machine

Abstract

The utility model discloses a conveying device of a labeling machine, and belongs to the technical field of labeling. The first conveying mechanism comprises a first conveying belt; the four positioning rollers are used for guiding the first conveying belt to form a containing space; the second conveying mechanism comprises a support, two supporting rollers, a second conveying belt and a driving part. The installation position of the second conveying mechanism corresponds to the labeling position of the labeling control system, when the first conveying mechanism conveys products through the first conveying belt, the products can move to the second conveying belt of the second conveying mechanism from the first conveying belt when being close to the labeling position, and after the products reach the labeling position, the driving piece is controlled to enable the second conveying belt to stop; the labeling machine is used for labeling the products, at the moment, the first conveying belt still carries out conveying operation, the second conveying belt stops conveying operation, friction in the conveying direction cannot be generated between the bottoms of the products and the second conveying belt, the conditions of abrasion and scratching of the bottoms of the products are reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of labeling, in particular to a conveying device of a labeling machine. Background Art

[0002] A labeling machine is a processing device used to apply paper labels to cans. Its principle is as follows: when the conveyor transports the can to the appropriate position, the sensor detects the product's presence and transmits a signal to the labeling control system. After the signal is processed, the label is delivered to the appropriate position and affixed to the product. After the product passes through the labeling device, the label is firmly applied, completing the attachment process. The labeling machine's mechanical system includes a drive wheel, a labeling wheel, and a reel. The drive wheel intermittently drags the label tape, which is pulled from the reel and pressed against the label by the labeling wheel, which rotates to achieve labeling. However, because the product requires continuous conveying by the conveyor, the production line does not stop for labeling. Therefore, during labeling, friction occurs between the bottom of the product and the production line, causing some wear and tear on the product. Utility Model Content

[0003] The purpose of the present utility model is to provide a conveying device for a labeling machine, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solution adopted to solve the above technical problems is as follows: a labeling machine conveying device, comprising: a first conveying mechanism, comprising a first conveyor belt, the first conveyor belt mechanism realizes the conveying function through the first conveyor belt; positioning rollers, rotatably mounted on the first conveying mechanism, the number of the positioning rollers is four and they are arranged in a matrix of two rows and two columns, two of the positioning rollers are distributed on the outside of the first conveyor belt, and the other two positioning rollers are distributed on the inside of the first conveyor belt, the four positioning rollers are used to guide the first conveyor belt to form an accommodating space; a second conveying mechanism, arranged in the accommodating space, the second conveying mechanism includes a bracket, two support rollers on which the brackets are rotatably mounted respectively, a second conveyor belt sleeved on the two support rollers, and a driving member mounted on the bracket, the driving member is used to drive the support rollers to rotate, the top surface of the second conveyor belt is adapted to the top surface of the first conveyor belt, and the length of the top surface of the second conveyor belt is adapted to the opening width of the accommodating space.

[0005] This technical solution has at least the following beneficial effects: the installation position of the second conveying mechanism corresponds to the labeling position of the labeling control system. When the first conveying mechanism conveys the product through the first conveyor belt, the product will move from the first conveyor belt to the second conveyor belt of the second conveying mechanism when it is close to the labeling position. After reaching the labeling position, the driving member is controlled to stop the second conveyor belt, and the labeling machine performs a labeling operation on the product. At this time, the first conveyor belt is still performing the conveying operation, while the second conveyor belt stops the conveying operation, so that no friction in the conveying direction is generated between the bottom of the product and the second conveyor belt, thereby reducing the wear and scratches on the bottom of the product and improving product quality.

[0006] As a further improvement to the above technical solution, a fixed roller is rotatably mounted on the bracket. A triangular support structure is formed between the fixed roller and the two support rollers, upon which the second conveyor belt is mounted. The driving member is configured to drive the fixed roller for rotation. The driving member drives the fixed roller, which in turn drives the two support rollers under the transmission action of the second conveyor belt, thereby ensuring the normal conveying function of the second conveyor belt. Furthermore, the triangular support structure effectively tensions the second conveyor belt, thereby enhancing the support and stability of the top portion of the second conveyor belt.

[0007] As a further improvement to the above technical solution, the outer surfaces of the fixed roller and the two support rollers are provided with first teeth, and the inner surface of the second conveyor belt is provided with tooth grooves for engagement with the first teeth. This prevents the fixed roller and the support rollers from sliding relative to the second conveyor belt, thereby improving the conveying accuracy and precision of the second conveying device.

[0008] As a further improvement of the above technical solution, the bracket is equipped with a support platform between the two support rollers, thereby further improving the support and stability of the top of the second conveyor belt.

[0009] As a further improvement to the above technical solution, the support platform includes two adjusting rollers rotatably mounted on the bracket, and a third conveyor belt sleeved outside the two adjusting rollers. The outer side of the third conveyor belt is ringed with second teeth that mesh with the tooth grooves. The bracket is equipped with a support block located between the two adjusting rollers. During conveying by the second conveyor belt, the second teeth cooperate with the tooth grooves to drive the third conveyor belt in a circular motion. The second teeth of the second conveyor belt can engage with the tooth grooves, thereby improving the flatness of the top of the second conveyor belt, ensuring the stability of the product during rotational labeling, thereby reducing label skew or wrinkling, and ensuring smooth labeling.

[0010] As a further improvement to the above technical solution, a gravity sensor is installed on the top of the support block. The gravity sensor determines the conveying position of the product, thereby controlling the activation of the drive element, which can improve the accuracy of the product staying at the corresponding labeling position.

[0011] As a further improvement to the above technical solution, the two positioning rollers on the outer side of the first conveyor belt are offset toward each other. The four positioning rollers form an inverted boss shape to reduce the bending degree of the first conveyor belt and reduce the deformation effect of the positioning rollers on the first conveyor belt.

[0012] As a further improvement to the above technical solution, the bracket is slidably mounted on the first conveyor mechanism in a direction perpendicular to the conveying direction of the first conveyor belt. An elastic member is installed between the bracket and the first conveyor mechanism to maintain the bracket at one end of its sliding range. When the labeling wheel pushes the product, the friction between the product and the second conveyor belt can be used to drive the second conveyor mechanism to overcome the elastic force of the elastic member and move, further reducing the relative friction between the bottom of the product and the second conveyor belt, and further improving the processing quality of the product.

[0013] As a further improvement to the above technical solution, the first conveying mechanism is equipped with a fixed frame, the fixed frame is equipped with a first sleeve, and the bracket is equipped with a second sleeve slidably connected to the first sleeve. The sliding guide between the first sleeve and the second sleeve can ensure the stability of the second conveying mechanism sliding relative to the first conveying mechanism.

[0014] As a further improvement to the above technical solution, the bracket is rotatably mounted with movable rollers located on either side of the opening of the storage space. The movable rollers are used to transition between the first conveyor belt and the second conveyor belt. The movable rollers assist in moving products from the first conveyor belt to the second conveyor belt, ensuring normal product transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the second conveying mechanism disassembled in an embodiment of the present utility model;

[0018] Figure 3 It is a schematic cross-sectional structural diagram of the second conveying mechanism in an embodiment of the present utility model.

[0019] 100, first conveying mechanism; 110, first conveyor belt; 120, frame; 200, positioning roller; 210, accommodating space; 300, second conveying mechanism; 301, bracket; 310, support roller; 320, second conveyor belt; 330, driving member; 340, fixed roller; 400, first tooth; 410, tooth groove; 500, supporting platform; 510, adjusting roller; 520, third conveyor belt; 530, second tooth; 540, support block; 600, elastic member; 610, fixed frame; 620, first sleeve; 630, second sleeve; 700, movable roller. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference Figure 1-3The conveying device of the labeling machine includes a first conveying mechanism 100 and a second conveying mechanism 300. The first conveying mechanism 100 includes a first conveyor belt 110, conveyor rollers, a frame 120, and a power component. The first conveyor belt 110 is sleeved on at least two conveyor rollers rotatably mounted on the frame 120. The power component drives the conveyor rollers to rotate, thereby realizing the circular motion of the first conveyor belt 110. When products are placed on the first conveyor belt 110, the function of conveying the products can be realized.

[0025] Four positioning rollers 200 are rotatably mounted on the frame 120, and the diameters of the four positioning rollers 200 are the same. The four positioning rollers 200 are distributed at the four corner positions of a quadrilateral to form a matrix of two rows and two columns. The two positioning rollers 200 at the top are at the same height and are on the inner side of the first conveyor belt 110, and the two positioning rollers 200 at the bottom are at the same height and are on the outer side of the first conveyor belt 110. This is equivalent to the two positioning rollers 200 at the bottom pressing part of the first conveyor belt 110 downward to form a receiving space 210 with an inverted isosceles trapezoidal cross-section, while the two positioning rollers 200 at the top are used to keep the other parts of the first conveyor belt 110 flat. It should be noted that the horizontal distance between the two positioning rollers 200 at the bottom is smaller than the horizontal distance between the two positioning rollers 200 at the top.

[0026] The second conveying mechanism 300 includes a bracket 301 , a supporting roller 310 , a fixing roller 340 , a second conveying belt 320 and a driving member 330 .

[0027] The bracket 301 can be installed on the ground, relative to the first conveying mechanism 100, or the bracket 301 can be installed on the frame 120 of the first conveying mechanism 100, so that the support roller 310, the fixed roller 340 and the second conveyor belt 320 are all in the accommodating space 210.

[0028] Two support rollers 310 are provided, and the diameters of the two support rollers 310 and the fixed roller 340 are the same. Both ends of the two support rollers 310 and the fixed roller 340 are rotatably mounted on the bracket 301, and the axes of the two support rollers 310 and the fixed roller 340 are perpendicular to the conveying direction of the first conveying mechanism 100.

[0029] The two support rollers 310 and the fixed roller 340 are arranged at the three corners of an isosceles triangle to form a triangular support structure. It is understood that the distances between the two support rollers 310 and the fixed roller 340 are the same, and the distance between the two support rollers 310 is greater than the distance between the support rollers 310 and the fixed roller 340. The second conveyor belt 320 is mounted outside the triangular support structure, that is, it is mounted outside the two support rollers 310 and the fixed roller 340.

[0030] The driving member 330 is a servo motor fixedly mounted on the bracket 301 or the frame 120. The output end of the servo motor is coaxially connected to the fixed roller 340 via a coupling, thereby enabling the servo motor to drive the fixed roller 340 to rotate. The rotation of the fixed roller 340 drives the second conveyor belt 320 to rotate in a circular motion and the other two support rollers 310 to rotate synchronously. The upper surface of the second conveyor belt 320 is arranged flush with the upper surface of the first conveyor belt 110. The width of the top surface of the second conveyor belt 320, determined by the distance between the two support rollers 310, is compatible with the opening width of the receiving space 210, determined by the distance between the two positioning rollers 200 above. In other words, while preventing contact and friction between the first conveyor belt 110 and the second conveyor belt 320, the distance between the positioning roller 200 and the nearest support roller 310 is minimized, thereby improving the stability and reliability of the transition of products from the first conveyor belt 110 to the second conveyor belt 320.

[0031] The outer surfaces of the two support rollers 310 are ring-shaped with first teeth 400, and the outer surface of the fixed roller 340 is also ring-shaped with first teeth 400. The inner side of the second conveyor belt 320 is ring-shaped with tooth grooves 410. During the rotation of the support rollers 310 and the fixed rollers 340, the first teeth 400 and the tooth grooves 410 are adapted and engaged with each other, thereby preventing the support rollers 310 and the fixed rollers 340 from sliding relative to the second conveyor belt 320, ensuring the accuracy of the transmission of the second conveyor belt 320 and the fixed roller 340 and the stability of the transportation of the second conveyor belt 320.

[0032] The support platform 500 is mounted on the bracket 301. The support platform 500 includes two adjusting rollers 510 and a third conveyor belt 520. The two adjusting rollers 510 have the same diameter and are rotatably mounted on the bracket 301 at the same height. The third conveyor belt 520 is sleeved over the two adjusting rollers 510, with the top of the third conveyor belt 520 parallel to the top of the second conveyor belt 320. Both the two adjusting rollers 510 and the third conveyor belt 520 are positioned between the two upper adjusting roller support rollers 310. Second teeth 530 are provided around the outer edge of the third conveyor belt 520. The second teeth 530 mesh with the tooth grooves 410. It is understood that the side-by-side spacing of the second teeth 530 is the same as the side-by-side spacing of the tooth grooves 410, and the width of the second teeth 530 is the same as or slightly smaller than the width of the tooth grooves 410. During the circular conveying operation of the second conveyor belt 320, the third conveyor belt 520 will be driven to move in a circular manner. The top inner side of the second conveyor belt 320 and the top outer side of the third conveyor belt 520 engage with each other to improve the flatness of the top surface of the second conveyor belt 320, thereby ensuring the flatness of the labeling.

[0033] A support block 540 is provided between the two adjustment rollers 510. The support block 540 is fixedly mounted on the bracket 301, thereby providing stable support for the top center of the third conveyor belt 520 and the top center of the second conveyor belt 320. A gravity sensor is mounted on top of the support block 540 and is in communication with the labeling control system. After sensing the weight of the product, the gravity sensor generates a gravity signal and sends it to the labeling control system, causing the labeling control system to control the driver 330 to shut down at the appropriate time, thereby retaining the product in the labeling position. It should be noted that after labeling is completed, the labeling control system controls the driver 330 to start at the appropriate time, thereby transporting the labeled product back to the first conveyor belt 110 and receiving the next product to be labeled from the first conveyor belt 110, thus continuing the cycle.

[0034] A fixing bracket 610 is fixed to the side of the frame 120 via bolts. A first sleeve 620 is mounted on the side of the fixing bracket 610 near the bracket 301. A second sleeve 630 is mounted on one side of the bracket 301. The end of the second sleeve 630, which is away from the bracket 301, extends into the first sleeve 620 and is slidably connected to the first sleeve 620. The direction in which the first sleeve 620 and the second sleeve 630 slide relative to each other is perpendicular to the conveying direction of the first conveying mechanism 100. This allows the bracket 301 and all components mounted on the bracket 301 to slide synchronously relative to the first conveying mechanism 100 in a direction perpendicular to the conveying direction of the first conveying mechanism 100.

[0035] An elastic member 600 is installed between the bracket 301 and the fixed frame 610. This elastic member 600 is a coil spring. Its ends respectively contact the bottom walls of the first sleeve 620 and the bottom walls of the second sleeve 630, concealing the coil spring between the first and second sleeves 620, 630 and enhancing the aesthetics. The coil spring is mounted on the side of the bracket 301 near the labeling wheel mounted in the labeling system. The coil spring stabilizes the bracket 301 near one end of the labeling wheel's range of motion. When the labeling wheel pushes the product against the label, the friction between the product and the second conveyor belt 320 overcomes the spring force of the coil spring, causing the bracket and components connected to the second conveyor belt 320 to deflect together, reducing wear and tear on the product against the second conveyor belt 320. After labeling is complete and the labeling wheel releases the product, the spring force of the coil spring returns the bracket 301 to its position near the end of the wheel's range of motion. In addition, the relative friction between the first sleeve 620 and the second sleeve 630 can consume the elastic potential energy of the coil spring, thereby achieving the effect of reducing vibration.

[0036] In other embodiments, the elastic member 600 may also be an elastic sheet, the cross section of which is "V"-shaped or "N"-shaped, one end of the elastic sheet being fixedly mounted on one side of the bracket 301, and the other end being fixedly mounted on the fixing frame 610, so that the elastic sheet is used to maintain the bracket 301 in a position close to the labeling wheel. After the bracket 301 moves relatively, the elastic sheet can also be used to restore the bracket 301 to its initial position.

[0037] To prevent products from getting stuck in the transition gap between the first conveyor belt 110 and the second conveyor belt 320, two movable rollers 700 are rotatably mounted on the bracket 301. The two movable rollers 700 are located on either side of the opening of the accommodating space 210, with the highest points of the movable rollers 700 aligned with or slightly lower than the first conveyor belt 110. The rotation of the movable rollers 700 thus facilitates product movement from the first conveyor belt 110 to the second conveyor belt 320, or vice versa, minimizing product jams.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A conveying device for a labeling machine, characterized in that: include: A first conveying mechanism includes a first conveying belt, wherein the first conveying belt mechanism realizes a conveying function through the first conveying belt; Positioning rollers, rotatably mounted on the first conveying mechanism, the number of the positioning rollers being four and arranged in a matrix of two rows and two columns, two of the positioning rollers being located on the outside of the first conveyor belt, and the other two being located on the inside of the first conveyor belt, the four positioning rollers being used to guide the first conveyor belt to form an accommodating space; The second conveying mechanism is arranged in the accommodating space, and the second conveying mechanism includes a bracket, two supporting rollers that are respectively rotatably installed on the bracket, a second conveyor belt sleeved on the two supporting rollers, and a driving member installed on the bracket, the driving member is used to drive the supporting rollers to rotate, the top surface of the second conveyor belt is adapted to the top surface of the first conveyor belt, and the length of the top surface of the second conveyor belt is adapted to the opening width of the accommodating space.

2. The conveying device of a labeling machine according to claim 1, characterized in that: The bracket is rotatably mounted with a fixed roller, and a triangular support structure for the second conveyor belt to be sleeved is formed between the fixed roller and the two support rollers, and the driving member is used to drive the fixed roller to rotate.

3. The conveying device of a labeling machine according to claim 2, characterized in that: The outer surfaces of the fixed roller and the two supporting rollers are provided with first teeth, and the inner side of the second conveyor belt is provided with tooth grooves for the first teeth to engage with.

4. The conveying device of a labeling machine according to claim 3, characterized in that: The bracket is equipped with a support platform between the two support rollers.

5. The conveying device of a labeling machine according to claim 4, characterized in that: The support platform includes two adjusting rollers rotatably mounted on the bracket and a third conveyor belt sleeved outside the two adjusting rollers. The outer ring of the third conveyor belt is provided with second teeth that are adapted to engage with the tooth grooves. The bracket is installed with a support block between the two adjusting rollers.

6. The conveying device of a labeling machine according to claim 5, characterized in that: A gravity sensor is installed on the top of the support block.

7. The conveying device of a labeling machine according to claim 2, characterized in that: The two positioning rollers located outside the first conveyor belt are offset toward each other.

8. The conveying device of a labeling machine according to claim 1, characterized in that: The bracket is slidably mounted on the first conveying mechanism along a direction perpendicular to the conveying direction of the first conveyor belt, and an elastic member is installed between the bracket and the first conveying mechanism to keep the bracket at one end of the sliding range.

9. The conveying device of a labeling machine according to claim 8, characterized in that: The first conveying mechanism is equipped with a fixing frame, the fixing frame is equipped with a first sleeve, and the bracket is equipped with a second sleeve that is slidably connected to the first sleeve.

10. The conveying device of a labeling machine according to claim 1, characterized in that: The bracket is rotatably mounted with movable rollers respectively located on both sides of the opening of the accommodating space, and the movable rollers are used for transition between the first conveyor belt and the second conveyor belt.

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