Label paper anti-fracture structure of fruit labeling machine

Abstract

The utility model discloses a label paper anti-breakage structure of a fruit labeling machine, which is arranged between an assembly plate and a waste paper winding wheel of the labeling machine, adjusts the rotating speed of the waste paper winding wheel and drives the label paper to move at a constant speed, and specifically comprises a belt pulley rotationally embedded in the assembly plate, and the waste paper winding wheel is rotationally connected to the belt pulley through a rotating shaft of the waste paper winding wheel; and a speed regulating spring is pressed between the belt pulley and the side wall of the waste paper winding wheel. And a driving wheel is arranged on the assembly plate between the waste paper winding wheel and the shovel body. The label paper anti-breakage structure is arranged between the assembly plate and the waste paper winding wheel, the rotating speed of the waste paper winding wheel is adjusted, and the advancing speed of label paper is driven to be constant. The speed of the waste paper winding wheel is adjusted through the label paper anti-breakage structure, that is, when the number of winding layers is gradually increased, the rotating speed of the waste paper winding wheel is gradually reduced, then it is guaranteed that label paper advances at a constant speed, and the problems of label paper breakage, label missing and the like caused by increase of the number of winding layers can be effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of fruit labeling, and in particular to a label paper anti-fracture structure of a fruit labeling machine. Background Art

[0002] Fruit labeling mainly refers to sticking labels or logos on fruits, and its purpose includes brand promotion, product traceability, price identification, etc. The label should contain necessary information, such as brand name, product name, production date, shelf life, etc., so that consumers can understand product information. At present, there are labeling machines for continuous labeling of fruits, which can greatly improve the efficiency of fruit labeling operations.

[0003] The structure of the labeling machine currently used is as shown in the attached manual. Figure 1 As shown, there is an assembly plate, on which are arranged in sequence an unwinding wheel, several guide wheels, a shovel body for separating labels from label paper, and a waste paper winding wheel, and also includes an intermittently rotating rubber head located at the bottom of the shovel body. The labeling process of the labeling machine is as follows:

[0004] First, the finished rolled label paper (with labels glued on it at intervals) is assembled on the unwinding wheel, and then the unwinding label paper is wound around the guide wheel in sequence, rotated at the end of the shovel body, and finally wound around the waste paper winding wheel. The label paper is unwound at a uniform speed by the rotation and traction of the waste paper winding wheel (there is a clamping wheel on the lower side of the unwinding wheel to prevent the label paper from loosening due to self-unwinding). After the label paper rotates through the end of the shovel body, since the label and the label paper are still separate structures, the label is gradually separated from the label paper from its end after the label paper rotates through the shovel body. At the same time, through the suction of the rubber head on the lower side (the rubber head has an inner cavity, and an air hole is opened at the top. Through the internal connection of the air pipe, the label separated from the label paper can be adsorbed on the top of the rubber head through the air hole). After adsorption, the next rubber head rotates to adsorb and separate the upper and lower labels of the label paper. During labeling, there is a fruit conveyor belt (not shown in the figure) on the bottom side of the rubber head, which drives the fruits placed at intervals to move at a uniform speed. When the fruits correspond to the rubber head, the gas direction inside the rubber head is changed, and the label previously adsorbed is bonded to the surface of the fruit through the rapid impact of high-pressure gas, thus completing a labeling operation.

[0005] The waste paper winding wheel is used to continuously unwind the label paper while reeling off the detached part of the label to recycle the waste label paper. Figure 5As shown in the figure, when the number of paper wrapping layers on the waste paper wrapping wheel increases gradually, the diameter of the outer paper wrapping layer increases gradually, that is, the length of the paper wrapping after the waste paper wrapping wheel rotates one circle increases gradually, and the unrolled paper and the fruit conveying speed are the same. When the winding length of the waste paper wrapping wheel increases, the pulling speed of the paper wrapping will be accelerated, which will cause the misalignment of the label on the paper wrapping and the rubber head, that is, the label cannot be accurately adsorbed on the rubber head, and the fruit labeling will have the problem of missing labels. At the same time, the traction force gradually increases, and the rotation of the end of the shovel body will also cause the paper wrapping to break ( Figure 6 As shown in the figure, continuous labeling operation cannot be achieved, and frequent shutdowns are required to rewind the label paper. Summary of the invention

[0006] In response to the above-mentioned problems, the present application aims to provide a label paper anti-breakage structure for a fruit labeling machine, which can effectively solve the problems of label paper breakage and label missing caused by the increase in the number of winding layers by adjusting the rotation speed of the waste paper winding wheel and driving the label paper to move at a constant speed.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is as follows: a label paper anti-breakage structure of a fruit labeling machine, the labeling machine has an assembly plate, on which are arranged in sequence an unwinding wheel, a plurality of guide wheels, a shovel body for separating the label and the label paper, and a waste paper winding wheel, characterized in that: the label paper anti-breakage structure is arranged between the assembly plate and the waste paper winding wheel, and the rotation speed of the waste paper winding wheel is adjusted to drive the label paper to move at a constant speed.

[0008] Preferably, the marking paper anti-fracture structure includes a pulley rotatably embedded in the assembly plate, the waste paper winding wheel is rotatably connected to the pulley with its rotating shaft, and a speed regulating spring is pressed between the pulley and the side wall of the waste paper winding wheel.

[0009] Preferably, a driving wheel is arranged on the assembly plate between the waste paper winding wheel and the shovel body, and a positioning structure for positioning relative to the marking paper is arranged on the driving wheel.

[0010] Preferably, the positioning structure is positioning needles evenly distributed on the circumference of the driving wheel and can be rolled into the marking paper.

[0011] The beneficial effect of the present application is that the marking paper anti-fracture structure provided in the present application is provided between the assembly plate and the waste paper winding wheel, and adjusts the rotation speed of the waste paper winding wheel and drives the marking paper to move at a constant speed. The speed of the waste paper winding wheel is adjusted by the marking paper anti-fracture structure, that is, when the number of winding layers gradually increases, the rotation speed of the waste paper winding wheel is gradually reduced, thereby ensuring that the marking paper moves at a uniform speed, which can effectively solve the problems of marking paper breakage, missing marking, etc. caused by the increase in the number of winding layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a partial structural diagram of the current labeling machine.

[0013] Figure 2 The figure shows the label paper and the label adhered to it.

[0014] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle.

[0015] Figure 4 This is a picture showing that the label is separated from the paper and adsorbed on the rubber head after the paper passes through the shovel body rotation.

[0016] Figure 5 This is a diagram showing the increase in winding radius as the number of winding layers on the waste paper winding wheel increases.

[0017] Figure 6 Cause Figure 5 Illustration showing excessive traction and broken marking paper due to increased number of wrapping layers.

[0018] Figure 7 This is a side view of the anti-fracture structure of the label paper in this application.

[0019] Figure 8 For this application, the adjustment spring causes the waste paper winding wheel to adjust the speed instability, resulting in the loosening of the marking paper when it is moving.

[0020] Fig. 9 This is a diagram of the drive wheel structure of this application.

[0021] Fig.10 This is a diagram showing the relative positioning of the driving wheel and the marking paper for this application.

[0022] Fig.11 This is a diagram showing a bendable positioning needle structure provided on the driving wheel of the present application.

[0023] In the figure: 8a-metal tying head; 9-rubber head; 10-pressure wheel; 11-label paper; 11a-label. DETAILED DESCRIPTION

[0024] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Refer to the attached Figures 1 to 11 The present invention shows a label paper anti-fracture structure of a fruit labeling machine, wherein the labeling machine has an assembly plate 1, on which are arranged in sequence an unwinding wheel 2, a plurality of guide wheels 3, a shovel body 4 for separating labels from label paper, and a waste paper winding wheel 5, and further comprises an intermittently rotating rubber head 9 located at the bottom of the shovel body 4. In order to solve the problems of the label paper being easily broken or missing due to the increase in the number of layers of label paper wound by the waste paper winding wheel 5, the present application provides a label paper anti-fracture structure, such as Figure 7 As shown, it is specifically arranged between the assembly plate 1 and the waste paper winding wheel 5, and adjusts the rotation speed of the waste paper winding wheel 5 and drives the label paper to move at a constant speed. The speed of the waste paper winding wheel 5 is adjusted by the label paper anti-fracture structure, that is, when the number of winding layers gradually increases, the rotation speed of the waste paper winding wheel 5 is gradually reduced, thereby ensuring that the label paper moves at a uniform speed, which can effectively solve the problems of label paper breakage, label leakage, etc. caused by the increase in the number of winding layers.

[0026] Specifically, Figure 7 As shown, the label paper anti-fracture structure includes a pulley 6 rotatably embedded in the assembly plate 1, the waste paper winding wheel 5 is rotatably connected to the pulley 6 with its rotating shaft 51, and a speed regulating spring 7 is pressed between the pulley 6 and the side wall of the waste paper winding wheel 5. The pulley 6 rotates at a uniform speed through a belt and a driving motor (not shown in the figure), and the waste paper winding wheel 5 rotates with the pulley 6 through the pressing friction of the speed regulating spring 7; when the winding layer on the waste paper winding wheel 5 increases (that is, the travel speed of the waste paper increases), the waste paper overcomes the excessive traction of the waste paper winding wheel 5 through the pressing effect of the pressing wheel under the unwinding wheel, and at the same time overcomes the pressing friction of the speed regulating spring 7 on the waste paper winding wheel 5, so that the waste paper winding wheel 5 rotates relative to the pulley 6, that is, a speed difference is formed, and then the waste paper winding wheel 5 drives the label paper to travel at a uniform speed, solving the problem of label paper breaking caused by the gradual increase of traction, as well as the problem of wrong labeling and missing labeling, and then the continuous labeling operation of fruits can be realized, and the operation efficiency can be improved.

[0027] The above-mentioned waste paper winding wheel 5 may be unstable in adjusting the speed of the waste paper winding wheel 5 through the pressure of the pulley 6, that is, the speed regulating spring 7, that is, the speed cannot be adjusted in time, and it takes a short process to overcome the pressure of the speed regulating spring 7, which will make the label paper tight and affect the accurate labeling of the label. Therefore, in order to solve this problem, a driving wheel 8 is provided on the assembly plate 1 between the waste paper winding wheel 5 and the shovel body 4, and a positioning structure for relative positioning with the label paper is provided on the driving wheel 8. The relative positioning of the label paper and the driving wheel 8 can be achieved through the positioning mechanism, and the uniform speed driving and movement of the label paper can be achieved through the uniform rotation of the driving wheel 8 (which is located on the back side of the assembly plate 1 and is provided with a driving motor), and the uniform speed driving and movement of the label paper can be achieved (the label paper and the driving wheel 8 are always in single-layer contact, and there is no problem of increasing the number of winding layers). The relative sliding of the label paper and the surface of the driving wheel 8 is avoided through the positioning mechanism, and the stable driving of the driving wheel 8 on the label paper is maintained.

[0028] Preferably, Figure 9-10As shown, the positioning structure is a positioning needle 81 that can be rolled into the label paper and is evenly distributed on the circumference of the driving wheel 8. When the label paper contacts the driving wheel 8 during its movement, the positioning needle 81 will roll into the label paper, thereby realizing the relative positioning of the label paper and the driving wheel 8, so that the label paper can move at a uniform speed through the driving wheel 8, solving the unstable speed regulation effect of the pulley 6 and the speed regulating spring 7 on the waste paper winding wheel 5. It is further preferred that the driving motor of the driving wheel 8 is connected to the pulley 6 through a belt, saving the number of assembly parts and simplifying the structure of the labeling machine.

[0029] Since the positioning needle 81 rotates in an arc with the driving wheel 8, when the label paper is separated from the positioning needle 81, the positioning needle 81 will further scratch the label paper rolling entrance, causing the label paper to break easily when being pulled. Fig.10 As shown, the positioning needle 81 is further set to be made of rubber material, and a metal needle head 8a is embedded at its top end to facilitate smooth rolling into the marking paper. When the marking paper is separated from it, the positioning needle 81 can be bent to a certain extent by the action of the marking paper, thereby solving the problem that the positioning needle 81 further scratches the marking paper and the waste paper cannot be continuously wound after the marking paper is broken.

[0030] The principle of the present application is: when labeling fruits, the positioning needle 81 on the driving wheel 8 is rolled into the label paper, driving the label paper to unwind and move at a uniform speed. After the label paper rotates through the shovel body 4, the label is adsorbed on the rubber head, and then the label paper is wound on the waste paper winding wheel for collection. When the number of winding layers increases, the reverse traction of the label paper causes the waste paper winding wheel 5 to overcome the force of the speed regulating spring and slow down, thereby realizing the precise collection of waste label paper, thereby solving problems such as paper breakage, wrong labeling and missing labeling.

[0031] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. A label paper anti-fracture structure for a fruit labeling machine, the labeling machine comprising an assembly plate (1), on which an unwinding wheel (2), a plurality of guide wheels (3), a shovel body (4) for separating labels from label paper, and a waste paper winding wheel (5) are sequentially arranged, characterized in that: The marking paper anti-fracture structure is arranged between the assembly plate (1) and the waste paper winding wheel (5), and adjusts the rotation speed of the waste paper winding wheel (5) and drives the marking paper to move at a constant speed.

2. The label paper anti-fracture structure according to claim 1, characterized in that: The marking paper anti-fracture structure comprises a belt pulley (6) rotatably embedded in the assembly plate (1), the waste paper winding wheel (5) is rotatably connected to the belt pulley (6) through its rotating shaft (51), and a speed regulating spring (7) is pressed between the belt pulley (6) and the side wall of the waste paper winding wheel (5).

3. The label paper anti-fracture structure according to claim 2, characterized in that: A driving wheel (8) is arranged on the assembly plate (1) between the waste paper winding wheel (5) and the shovel body (4), and a positioning structure for positioning relative to the marking paper is arranged on the driving wheel (8).

4. The label paper anti-fracture structure according to claim 3, characterized in that: The positioning structure is a positioning needle (81) evenly distributed on the circumference of the driving wheel (8) and capable of being rolled into the marking paper.

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