Prefabricated cup sleeve labeling device and method

Abstract

The present invention relates to a prefabricated cup sleeve labeling device and method. The prefabricated cup sleeve labeling device comprises a conveyor chain, on which are mounted multiple cup molds that move with the conveyor chain. Above the conveyor chain, a sleeve labeling machine for sleeve labels onto the cup molds and at least one prefabricated cup product are sequentially positioned along the conveyor chain's conveying direction. A label shifting device is positioned below the cup mold vertically opposite the prefabricated cup product to transfer the label from the cup mold to the corresponding prefabricated cup product. This invention addresses the technical problem of damage to the cup film and the surface of the contents during the sleeve labeling process.

Description

Technical Field

[0001] The present invention relates to food production equipment, in particular to a prefabricated cup sleeve labeling device and method. Background Art

[0002] Currently, the solidified prefabricated cup products sold on the market (such as old yogurt and spoonable yogurt, etc.) require that the surface of the contents inside remain flat when the consumer tears open the cup membrane at the seal of the cup, otherwise it will affect the taste of the product and the consumer's eating experience.

[0003] At present, because the diameter of prefabricated cups gradually decreases from top to bottom, the prefabricated cups need to be inverted during the labeling process (i.e., applying a label to the outer wall of the prefabricated cup), and then the label is applied and heat-shrunk. This process has the following disadvantages:

[0004] 1. When the cup body is inverted, the cup film at the seal of the cup will come into direct contact with the conveyor chain, which can easily cause friction damage to the cup film, reducing the yield and increasing production costs;

[0005] Second, since solidified contents (such as yogurt) usually require a certain solidification time, they cannot be shaken or inverted on the streamlined production line. Otherwise, the contents cannot maintain their shape and solidify properly in the cup body. The current labeling method will cause the contents to fall onto the cup membrane due to gravity, thereby damaging the surface of the contents, affecting product quality and consumers' eating experience.

[0006] With regard to the problem in the related art that prefabricated cups are prone to damage to the cup film and the surface of the contents during the labeling process, no effective solution has been given so far.

[0007] Therefore, the inventors, relying on their many years of experience and practice in related industries, propose a prefabricated cup sleeve labeling device and method thereof to overcome the defects of the prior art. Summary of the Invention

[0008] The purpose of the present invention is to provide a prefabricated cup labeling device and method. A cup mold is preset on the conveyor chain. First, the label is put on the cup mold, and then the label is shifted to the prefabricated cup. After that, heat shrinkage is performed. The prefabricated cup can be put on the labeling operation in an upright state. The structure is simple and easy to operate, ensuring good product quality and consumer eating experience.

[0009] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0010] The present invention provides a prefabricated cup labeling device, which includes a conveyor chain, on which a plurality of cup molds that move with the conveyor chain are arranged, and above the conveyor chain, a labeling machine for sleeveing ​​labels on the cup molds and at least one prefabricated cup product are arranged in sequence along the conveying direction of the conveyor chain, and below the cup mold opposite to the prefabricated cup product in the vertical direction, a label shifting device for pushing the label on the cup mold to the corresponding prefabricated cup product is arranged.

[0011] In a preferred embodiment of the present invention, the cup mold is a columnar structure, one end of the cup mold is fixed on the conveying chain, and the diameter of the cup mold gradually decreases from close to the conveying chain to away from the conveying chain.

[0012] In a preferred embodiment of the present invention, the diameter of the cup mold at one end close to the conveyor chain is larger than the bottom diameter of the prefabricated cup product.

[0013] In a preferred embodiment of the present invention, the prefabricated cup labeling device further comprises a label correction device for positioning the label sleeved on the cup mold, wherein the label correction device is disposed above the conveyor chain and between the label sleeve machine and the prefabricated cup product;

[0014] The label correction device includes a first cylinder and a push plate arranged in a horizontal direction, the piston rod of the first cylinder extends downward in a vertical direction, and the top surface of the push plate is connected to the bottom end of the piston rod of the first cylinder.

[0015] In a preferred embodiment of the present invention, the label shifting device includes a second cylinder and a push rod arranged along the vertical direction, the piston rod of the second cylinder extends upward along the vertical direction, the bottom end of the push rod is connected to the top end of the piston rod of the second cylinder, a shift guide groove is opened on the outer wall of the cup mold along the vertical direction, a shift slider is slidably provided in the shift guide groove, and the top end of the push rod can abut against the bottom of the shift slider to push the shift slider to move upward along the shift guide groove.

[0016] In a preferred embodiment of the present invention, the prefabricated cup labeling device further comprises a steam injection device, which is a cylindrical structure arranged in a vertical direction and open at both ends. The steam injection device is provided with a plurality of steam injection holes connected to the interior of the steam injection device. The steam injection device cover is arranged on the outside of the prefabricated cup product, and each of the steam injection holes is connected to a corresponding steam delivery pipeline.

[0017] In a preferred embodiment of the present invention, the prefabricated cup labeling device also includes a cup mold drying device, which is a cylindrical structure arranged in a vertical direction and open at both ends. The cup mold drying device is provided with a plurality of blowing holes connected to the interior of the cup mold drying device. The cup mold drying device cover is arranged on the outside of the cup mold located downstream of the label shifting device, and each of the blowing holes is connected to the corresponding air supply pipeline.

[0018] In a preferred embodiment of the present invention, the conveying chain is an annular chain, and the cup molds are continuously and spaced apart on the outer surface of the conveying chain along the circumference of the conveying chain.

[0019] In a preferred embodiment of the present invention, the transmission chain is connected between a driving wheel and a driven wheel, and the axle of the driving wheel is connected to the output shaft of the driving motor.

[0020] The present invention provides a prefabricated cup sleeve labeling method, which comprises the following steps:

[0021] Step S1: The labeling machine puts labels on the outside of each cup mold that moves below it;

[0022] Step S2: the cup molds with the labels are sequentially moved to the top of the label shifting device along the conveyor chain;

[0023] Step S3: The label shifting device pushes the label on the cup mold so that the label moves upward and is sleeved on the outside of the prefabricated cup product located above the cup mold.

[0024] In a preferred embodiment of the present invention, before step S1, the process further includes placing a label roll on a label rack, and starting a drive motor to drive the conveying chain to convey each of the cup molds.

[0025] In a preferred embodiment of the present invention, after step S1 and before step S2, it also includes when the cup mold moves to the bottom of the label correction device, the push plate of the label correction device moves downward and abuts against the top edge of the label to push the label down until its top edge is flush with the top of the cup mold.

[0026] In a preferred embodiment of the present invention, after step S3, step S4 is further included: a steam injection device is covered on the outside of the prefabricated cup product, and steam is injected into each steam injection hole on the steam injection device through a steam delivery pipeline, so that the label shrinks due to heat and adheres tightly to the outer wall of the prefabricated cup product.

[0027] In a preferred embodiment of the present invention, the temperature of the steam is 95°C to 100°C.

[0028] In a preferred embodiment of the present invention, after step S4, step S5 is also included: when the cup mold moves to the position corresponding to the cup mold drying device, the cup mold drying device is covered on the outside of the cup mold, and compressed air is injected into each blowing hole on the cup mold drying device through the air supply pipeline to dry the steam condensate attached to the outer wall of the cup mold in step S4. After drying, the cup mold circulates into step S1.

[0029] In a preferred embodiment of the present invention, the compressed air has a pressure of 0.5 bar to 5 bar.

[0030] As described above, the features and advantages of the prefabricated cup labeling device and method of the present invention are: the label is pre-sheathed and conveyed through the cup mold, and then the label is transferred to the prefabricated cup product. The prefabricated cup product will not come into contact with the conveyor chain, thereby avoiding the conveyor chain from causing wear to the cup film at the opening of the prefabricated cup product, improving the integrity rate of the finished product, reducing the product damage cost and the risk of complaints during consumption; in addition, the prefabricated cup product always remains in an upright state during the entire labeling process, and the surface of the contents can be kept intact, thereby improving product quality and the consumer's eating experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0032] in:

[0033] Figure 1 : It is a structural diagram of the prefabricated cup sleeve labeling device of the present invention.

[0034] Figure 2 : It is a structural schematic diagram of the label correction device in the prefabricated cup sleeve labeling device of the present invention.

[0035] Figure 3 : It is a structural schematic diagram of the label shifting device in the prefabricated cup sleeve labeling device of the present invention.

[0036] Figure 4 : It is a structural schematic diagram of the steam injection device in the prefabricated cup sleeve labeling device of the present invention.

[0037] Figure 5 : It is a structural schematic diagram of the cup mold drying device in the prefabricated cup sleeve labeling device of the present invention.

[0038] The accompanying drawings in the present invention are:

[0039] 1. Conveyor chain; 2. Cup mold;

[0040] 201. Shift guide groove; 202. Shift slider;

[0041] 3. Driving wheel; 4. Driven wheel;

[0042] 5. Driving motor; 6. Label correction device;

[0043] 601, first cylinder; 602, push plate;

[0044] 7. Label shifting device; 701. Second cylinder;

[0045] 702. Push rod; 8. Steam injection device;

[0046] 801. Steam injection hole; 9. Cup mold drying device;

[0047] 901, air blowing hole; 10, labeling machine;

[0048] 1001. Center column of labeling machine; 1002. Label supporting wheel;

[0049] 1003. Cutter; 1004. Marking wheel;

[0050] 11. Prefabricated cup products; 12. Label rolls;

[0051] 13. Label. DETAILED DESCRIPTION

[0052] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0053] Implementation Method 1

[0054] like Figure 1 As shown, the present invention provides a prefabricated cup labeling device, which includes a conveyor chain 1, on which a plurality of cup molds 2 that move with the conveyor chain 1 are arranged, and above the conveyor chain 1, a labeling machine 10 for sleeveing ​​a label 13 on the cup mold 2 and at least one prefabricated cup product 11 are sequentially arranged along the conveying direction of the conveyor chain 1, and a label shifting device 7 is provided below the cup mold 2 that is opposite to the prefabricated cup product 11 in the vertical direction, and the label 13 on the cup mold 2 is pushed upward to the corresponding prefabricated cup product 11 by the label shifting device 7, so that the label 13 is sleeved on the outside of the prefabricated cup product 11.

[0055] The present invention is provided with a plurality of cup molds 2 which can move with the conveyor chain 1, and a sleeve labeling machine 10 and a prefabricated cup product 11 are sequentially arranged above the conveyor chain 1 along the conveying direction of the conveyor chain 1, and a label shifting device 7 is provided below the prefabricated cup product 11; when the cup mold 2 moves to the bottom of the sleeve labeling machine 10 along the conveyor chain 1, the sleeve labeling machine 10 completes the operation of cutting and pasting the label 13 into a ring shape and then sleeves the label 13 on the outside of the cup mold 2, and the cup mold 2 with the label 13 sleeved continues to move with the conveyor chain 1; when the cup mold 2 moves to the top of the label shifting device 7, the label shifting device 7 pushes the label 13 on the cup mold 2 to The conveyor chain 1 moves upward to allow the label 13 to be sleeved on the outside of the prefabricated cup product 11 located above the cup mold 2. The label 13 is pre-sleeved and conveyed through the cup mold 2, and then the label 13 is transferred to the prefabricated cup product 11. During this process, the prefabricated cup product 11 will not come into contact with the conveyor chain 1, thereby avoiding the conveyor chain 1 from causing wear to the cup film at the opening of the prefabricated cup product 11, thereby improving the integrity rate of the finished product, reducing the product damage cost and the risk of complaints during consumption; in addition, the prefabricated cup product 11 always remains in an upright state during the entire labeling process, and the surface of the contents inside the prefabricated cup product 11 can be kept intact, thereby improving product quality and consumers' eating experience.

[0056] Further, such as Figure 1 As shown, the cup mold 2 is a cylindrical structure, with one end of the cup mold 2 fixed to the conveyor chain 1 and the other end extending away from the conveyor chain 1. The diameter of the cup mold 2 gradually decreases from the direction close to the conveyor chain 1 to the direction away from the conveyor chain 1. The diameter of the cup mold 2 at the end close to the conveyor chain 1 is larger than the bottom diameter of the prefabricated cup product 11. The shape of the cup mold 2 is the same as that of the inverted prefabricated cup product 11, so that the label 13 placed on the cup mold 2 can be smoothly transferred to the prefabricated cup product 11, ensuring smooth labeling.

[0057] In an optional embodiment of the present invention, Figure 1 As shown, the conveying chain 1 is an annular chain, and the cup molds 2 are continuously and spaced apart on the outer surface of the conveying chain 1 along the circumference of the conveying chain 1. During the conveying process of the conveying chain 1, the cup molds 2 on the conveying chain 1 can be recycled.

[0058] Further, such as Figure 1 As shown, the transmission chain 1 is connected between the driving wheel 3 and the driven wheel 4 (that is, one end of the transmission chain 1 is sleeved on the driving wheel 3, and the other end of the transmission chain 1 is sleeved on the driven wheel 4). The axle of the driving wheel 3 is connected to the output shaft of the driving motor 5. The driving motor 5 provides power to the driving wheel 3, and the driving wheel 3 and the driven wheel 4 cooperate to drive the transmission chain 1 to complete the transmission action.

[0059] In an optional embodiment of the present invention, Figure 1、 Figure 2 As shown, the prefabricated cup labeling device also includes a label correction device 6, which is arranged above the conveyor chain 1 and between the labeling machine 10 and the prefabricated cup product 11. The label correction device 6 corrects the position of the label 13 on the cup mold 2 that is not set in the preset standard position, and then locates the position of the label 13 on the cup mold 2.

[0060] Further, such as Figure 2 The label correction device 6 includes a first cylinder 601 and a push plate 602 arranged horizontally. The piston rod of the first cylinder 601 extends downward in the vertical direction, and the top surface of the push plate 602 is connected to the bottom end of the piston rod of the first cylinder 601. The piston rod of the first cylinder 601 drives the push plate 602 downward, and the bottom surface of the push plate 602 abuts against the top edge of the label 13. Under the pressure of the push plate 602, the label 13 moves downward until the top edge of the label 13 is flush with the top of the cup mold 2. In this way, all labels 13 that are placed too high are returned to the cup mold 2, thereby improving the accuracy and integrity of the labeling process on the next prefabricated cup product 11.

[0061] In an optional embodiment of the present invention, Figure 1 、 Figure 3 As shown, the label shifting device 7 includes a second cylinder 701 and a push rod 702 arranged in the vertical direction. The piston rod of the second cylinder 701 extends upward in the vertical direction. The bottom end of the push rod 702 is connected to the top end of the piston rod of the second cylinder 701. A shift guide groove 201 is opened in the vertical direction on the outer wall of the cup mold 2. A shift slider 202 is slidably provided in the shift guide groove 201. The bottom edge of the label 13 mounted on the cup mold 2 abuts against the top of the shift slider 202. The piston rod of the second cylinder 701 drives the push rod 702 to move upward, and the top of the push rod 702 abuts against the bottom of the shift slider 202 to push the shift slider 202 to move upward along the shift guide groove 201, and then the label 13 is pushed upward by the shift slider 202, and the label 13 is put on the outside of the prefabricated cup product 11 above to complete the shift of the label 13. During the whole process, the prefabricated cup product 11 located above the cup mold 2 is always in an upright state.

[0062] In an optional embodiment of the present invention, Figure 1 、 Figure 4As shown, the prefabricated cup labeling device also includes a steam injection device 8. The steam injection device 8 is a vertically arranged cylindrical structure with open ends. The steam injection device 8 is provided with multiple steam injection holes 801 that communicate with the interior of the steam injection device 8. The steam injection holes 801 are evenly distributed on the steam injection device 8. The steam injection device 8 is positioned outside the prefabricated cup product 11, and each steam injection hole 801 is connected to a corresponding steam delivery pipeline. After the label 13 is applied to the exterior of the prefabricated cup product 11, steam is injected into the steam injection holes 801 of the steam injection device 8 through the steam delivery pipeline. This causes the label 13 to shrink due to heat and adhere to the outer wall of the prefabricated cup product 11, ensuring that the label 13 is securely applied to the prefabricated cup product 11, completing the labeling process.

[0063] In an optional embodiment of the present invention, Figure 1 、 Figure 5 As shown, the prefabricated cup labeling device also includes a cup mold drying device 9. The cup mold drying device 9 is a cylindrical structure arranged in the vertical direction and open at both ends. The cup mold drying device 9 is arranged below the conveying chain 1. The cup mold drying device 9 is provided with a plurality of blowing holes 901 connected to the interior of the cup mold drying device 9. The blowing holes 901 are evenly distributed on the cup mold drying device 9. The cup mold drying device 9 is covered on the outside of the cup mold 2 located downstream of the label shifting device 7 (that is, the cup mold 2 after the label 13 is removed by the label shifting device 7). The blowing holes 901 are respectively connected to the corresponding air supply pipelines. After the label 13 is removed from the cup mold 2, during the process of steam heat shrinkage of the label 13, steam condensed water will fall onto the outer wall of the cup mold 2. At this time, compressed air is injected into the blowing holes 901 on the cup mold drying device 9 through the air supply pipeline, so that the steam condensed water attached to the outer wall of the cup mold 2 can be blown dry, preventing the label 13 from adhering to the outer wall of the cup mold 2 due to water on the outer wall of the cup mold 2, and avoiding the situation where the label cannot be put on smoothly or cannot be put on at all.

[0064] In an optional embodiment of the present invention, Figure 1 As shown, the labeling machine 10 includes a central column 1001 and a cutter 1003. The cutter 1003 is used to cut the label 13 into a preset length. A plurality of pairs of support wheels 1002 are provided on the outer wall of the central column 1001 of the labeling machine. A marking wheel 1004 is provided at the bottom of the central column 1001 of the labeling machine, and the cutter 1003 is located above the marking wheel 1004.

[0065] Furthermore, the labeling machine 10 is provided with a camera, which can capture the position image of the label 13 in real time, ensuring that the label 13 passes smoothly through the guidance, transportation and alignment of each supporting wheel 1002, thereby ensuring the accuracy of the labeling.

[0066] Furthermore, the label 13 can be made of but not limited to PE (polyethylene) material. The label roll 12 wound by the label 13 is pre-set on the label rack. The label rack is provided with a servo motor for driving the label roll 12 to rotate. A tensioning mechanism (which is an existing structure) is provided between the label rack and the label sleeve machine 10 to straighten the label 13 on the label roll 12 and then introduce it into the label sleeve machine 10.

[0067] The characteristics and advantages of the prefabricated cup sleeve labeling device of the present invention are:

[0068] 1. The prefabricated cup labeling device pre-sleeves and conveys the label 13 through the cup mold 2, and then transfers the label 13 to the prefabricated cup product 11. During this process, the prefabricated cup product 11 will not come into contact with the conveyor chain 1, thereby avoiding the conveyor chain 1 from causing wear to the cup film at the opening of the prefabricated cup product 11, improving the intactness rate of the finished product, and reducing the product damage cost and the risk of complaints during consumption.

[0069] Second, during the entire process of the prefabricated cup labeling device, the prefabricated cup product 11 always remains in an upright state, and the surface of the contents inside the prefabricated cup product 11 can be preserved intact, thereby improving product quality and consumer eating experience.

[0070] 3. In the prefabricated cup labeling device, the label correction device 6 can correct the position of the label 13 that is not set in the preset standard position, and then locate the position of the label 13 on the cup mold 2, thereby improving the accuracy and integrity of the labeling on the next prefabricated cup product 11.

[0071] Fourth, in the prefabricated cup labeling device, the label 13 sleeved on the prefabricated cup product 11 can be heated by the steam injection device 8, so that the label 13 shrinks due to the heat and adheres closely to the outer wall of the prefabricated cup product 11, thereby improving the firmness of the label 13 on the prefabricated cup product 11.

[0072] 5. In the prefabricated cup labeling device, the steam condensed water attached to the outer wall of the cup mold 2 can be blown dry by the cup mold drying device 9 to prevent the label 13 from adhering to the outer wall of the cup mold 2 due to water on the outer wall of the cup mold 2, thereby avoiding the situation where the labeling is not smooth or cannot be applied, so that the cup mold 2 can be recycled.

[0073] Implementation Method 2

[0074] The present invention provides a method for prefabricating cup sleeve labels, which comprises the following steps:

[0075] Step S1: The labeling machine 10 puts the label 13 on the outside of each cup mold 2 moved below it;

[0076] Step S2: Each cup mold 2 with the label 13 is moved in sequence to the top of the label shifting device 7 along the conveyor chain 1;

[0077] Step S3 : the label shifting device 7 pushes the label 13 on the cup mold 2 so that the label 13 moves upward and is sleeved on the outside of the prefabricated cup product 11 located above the cup mold 2 .

[0078] Furthermore, before step S1 , the process also includes placing the label roll 12 on the label rack, and starting the drive motor 5 to drive the conveyor chain 1 to convey each cup mold 2 .

[0079] Furthermore, after step S1 and before step S2, it also includes that when the cup mold 2 moves to the bottom of the label correction device 6, the push plate 602 of the label correction device 6 moves downward and abuts against the top edge of the label 13 to push the label 13 down until its top edge is flush with the top of the cup mold 2.

[0080] Furthermore, after step S3, step S4 is included: a steam injection device 8 is positioned over the outer side of the prefabricated cup product 11, and steam is injected into the steam injection holes 801 of the steam injection device 8 through a steam delivery pipeline, so that the label 13 shrinks due to heat and adheres closely to the outer wall of the prefabricated cup product 11. The steam temperature is 95°C to 100°C.

[0081] Furthermore, after step S4, step S5 is also included: when the cup mold 2 moves to the position corresponding to the cup mold drying device 9, the cup mold drying device 9 is covered on the outside of the cup mold 2, and compressed air is injected into the blowing holes 901 on the cup mold drying device 9 through the air supply pipeline to dry the steam condensate attached to the outer wall of the cup mold 2 in step S4. The dried cup mold 2 circulates and enters step S1. The wind pressure of the compressed air is 0.5 bar to 5 bar.

[0082] The specific process of the prefabricated cup sleeve labeling method of the present invention is as follows:

[0083] The preset label roll 12 is placed on the label machine frame, the label roll 12 is driven to rotate by the servo motor, and the label 13 is transferred to the central column 1001 of the labeling machine through the tensioning mechanism, the position of the label 13 is corrected by the camera, and the label 13 is guided, conveyed and straightened by multiple pairs of supporting wheels 1002. Then, the label 13 is cut into single labels 13 of specified size by the cutter 1003, and then the label 13 is put on the cup mold 2 by the marking wheel 1004, and the cup mold 2 moves synchronously with the conveyor chain 1; when the cup mold 2 moves to the bottom of the label correction device 6, the label correction device 6 presses down the top edge of the label 13 and adjusts the position of the label 13 on the cup mold 2 to improve the labeling accuracy and integrity of the next labeling station; when the cup mold 2 with the label 13 moves to the top of the label shifting device 7 with the conveyor chain 1, the prefabricated cup chain perpendicular to the conveyor chain 1 in the horizontal direction The plate conveys the prefabricated cup product 11 to the top of the cup mold 2, and pushes the label 13 on the cup mold 2 to the prefabricated cup product 11 through the label shifting device 7, so that the label 13 is sleeved on the outside of the prefabricated cup product 11, and then the steam injection device 8 injects 95°C to 100°C steam to the prefabricated cup product 11 to achieve instantaneous shrinkage of the label 13, so that the label 13 is firmly sleeved on the outer wall of the prefabricated cup product 11; then, the cup mold 2 continues to be conveyed to the position of the cup mold drying device 9 with the conveying chain 1, and the cup mold drying device 9 injects 0.5 bar to 5 bar compressed air to the outer surface of the cup mold 2 to dry the steam condensate that falls onto the cup mold 2 during the heat shrinkage of the label 13, so as to prevent the label 13 from adhering to the cup mold 2 due to the steam condensate on the cup mold 2, resulting in poor or impossible labeling. After drying, the cup mold 2 can continue to move with the conveying chain 1 to circulate the labeling operation.

[0084] The characteristics and advantages of the prefabricated cup sleeve labeling method of the present invention are:

[0085] 1. The prefabricated cup labeling method pre-mounts and conveys the label 13 through the cup mold 2, and then transfers the label 13 to the prefabricated cup product 11. The prefabricated cup product 11 does not come into contact with the conveyor chain 1, thereby avoiding the conveyor chain 1 from causing wear to the cup film at the opening of the prefabricated cup product 11, thereby improving the intactness rate of the finished product and reducing the product damage cost and the risk of complaints during consumption.

[0086] Second, during the entire process of labeling, the prefabricated cup product 11 is always kept in an upright position, so that the surface of the contents inside the prefabricated cup product 11 can be preserved intact, thereby improving product quality and consumer eating experience.

[0087] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A prefabricated cup sleeve labeling device, characterized in that: The prefabricated cup labeling device includes a conveyor chain, on which a plurality of cup molds that move along the conveyor chain are arranged; above the conveyor chain, a labeling machine for sleeve labels on the cup molds and at least one prefabricated cup product are sequentially arranged along the conveying direction of the conveyor chain; below the cup mold that is opposite to the prefabricated cup product in the vertical direction, a label shifting device for shifting the label on the cup mold to the corresponding prefabricated cup product is arranged; The cup mold is a columnar structure, one end of the cup mold is fixed on the conveying chain, and the diameter of the cup mold gradually decreases from close to the conveying chain to away from the conveying chain; The prefabricated cup labeling device further includes a label correction device, which is disposed above the conveyor chain and between the labeling machine and the prefabricated cup product, and is used to correct the position of the label on the cup mold that is not sleeved at a preset standard position; The label correction device includes a first cylinder and a push plate arranged in a horizontal direction. The piston rod of the first cylinder extends downward in a vertical direction. The top surface of the push plate is connected to the bottom end of the piston rod of the first cylinder. The push plate is driven downward by the piston rod of the first cylinder. The bottom surface of the push plate abuts against the top edge of the label, so that the label moves downward under the pressure of the push plate until the top edge of the label is flush with the top of the cup mold.

2. The prefabricated cup sleeve labeling device according to claim 1, characterized in that: The diameter of the cup mold at one end close to the conveying chain is larger than the bottom diameter of the prefabricated cup product.

3. The prefabricated cup sleeve labeling device according to claim 1, characterized in that: The label shifting device includes a second cylinder and a push rod arranged in the vertical direction. The piston rod of the second cylinder extends upward in the vertical direction. The bottom end of the push rod is connected to the top end of the piston rod of the second cylinder. A shift guide groove is opened on the outer wall of the cup mold in the vertical direction. A shift slider is slidably arranged in the shift guide groove. The top end of the push rod can abut against the bottom of the shift slider to push the shift slider to move upward along the shift guide groove.

4. The prefabricated cup sleeve labeling device according to claim 1, characterized in that: The prefabricated cup labeling device also includes a steam injection device, which is a cylindrical structure arranged in a vertical direction and open at both ends. The steam injection device is provided with a plurality of steam injection holes connected to the interior of the steam injection device. The steam injection device cover is arranged on the outside of the prefabricated cup product, and each of the steam injection holes is connected to a corresponding steam delivery pipeline.

5. The prefabricated cup sleeve labeling device according to claim 1, characterized in that: The prefabricated cup sleeve labeling device also includes a cup mold drying device, which is a cylindrical structure arranged in a vertical direction and open at both ends. The cup mold drying device is provided with a plurality of blowing holes connected to the interior of the cup mold drying device. The cup mold drying device cover is arranged on the outside of the cup mold located downstream of the label shifting device, and each of the blowing holes is connected to the corresponding air supply pipeline.

6. The prefabricated cup sleeve labeling device according to claim 1, characterized in that: The conveying chain is an annular chain, and the cup molds are continuously and spaced apart on the outer surface of the conveying chain along the circumference of the conveying chain.

7. The prefabricated cup sleeve labeling device according to claim 6, characterized in that: The transmission chain is connected between the driving wheel and the driven wheel, and the wheel shaft of the driving wheel is connected to the output shaft of the driving motor.

8. A method for sleeve labeling a prefabricated cup, which is implemented by using the prefabricated cup sleeve labeling device according to any one of claims 1 to 7, characterized in that: The prefabricated cup sleeve labeling method comprises the following steps: Step S1: The labeling machine puts labels on the outside of each cup mold that moves below it; Step S2: the cup molds with the labels are sequentially moved to the top of the label shifting device along the conveyor chain; Step S3: The label shifting device pushes the label on the cup mold so that the label moves upward and is sleeved on the outside of the prefabricated cup product located above the cup mold.

9. The prefabricated cup sleeve labeling method according to claim 8, characterized in that: Before step S1, the method further includes placing a label roll on a label rack, and starting a drive motor to drive the conveying chain to convey each of the cup molds.

10. The prefabricated cup sleeve labeling method according to claim 8, characterized in that: After step S1 and before step S2, the method further includes: when the cup mold moves to the bottom of the label correction device, the push plate of the label correction device moves downward and abuts against the top edge of the label to push the label down until its top edge is flush with the top of the cup mold.

11. The prefabricated cup sleeve labeling method according to claim 8, characterized in that: After step S3, step S4 is also included: a steam injection device is covered on the outside of the prefabricated cup product, and steam is injected into each steam injection hole on the steam injection device through a steam delivery pipeline, so that the label shrinks due to heat and adheres tightly to the outer wall of the prefabricated cup product.

12. The prefabricated cup sleeve labeling method according to claim 11, characterized in that: The temperature of the steam is 95°C to 100°C.

13. The prefabricated cup sleeve labeling method according to claim 11, wherein: After step S4, step S5 is also included: when the cup mold moves to the position corresponding to the cup mold drying device, the cup mold drying device is covered on the outside of the cup mold, and compressed air is injected into each blowing hole on the cup mold drying device through the air supply pipeline to dry the steam condensed water attached to the outer wall of the cup mold in step S4. After drying, the cup mold circulates into step S1.

14. The prefabricated cup sleeve labeling method according to claim 13, wherein: The compressed air has a pressure of 0.5 bar to 5 bar.

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